diff --git a/zeno/include/zeno/types/CurveType.h b/zeno/include/zeno/types/CurveType.h new file mode 100644 index 0000000000..7292f1ab7f --- /dev/null +++ b/zeno/include/zeno/types/CurveType.h @@ -0,0 +1,53 @@ +#pragma once + +#include +#include + +namespace zeno { + +enum struct CurveType { + + QUADRATIC_BSPLINE, + RIBBON_BSPLINE, + CUBIC_BSPLINE, + + LINEAR, + BEZIER, + CATROM +}; + +static unsigned int CurveDegree(zeno::CurveType type) { + + switch( type ) { + case CurveType::LINEAR: + return 1; + + case CurveType::QUADRATIC_BSPLINE: + case CurveType::RIBBON_BSPLINE: + return 2; + + case CurveType::CUBIC_BSPLINE: + case CurveType::BEZIER: + case CurveType::CATROM: + return 3; + } + return 0; +} + +static std::string CurveTypeDefaultString() { + auto name = magic_enum::enum_name(CurveType::LINEAR); + return std::string(name); +} + +static std::string CurveTypeListString() { + auto list = magic_enum::enum_names(); + + std::string result; + for (auto& ele : list) { + result += " "; + result += ele; + } + return result; +} + +} //zeno \ No newline at end of file diff --git a/zeno/src/nodes/prim/AsCurves.cpp b/zeno/src/nodes/prim/AsCurves.cpp new file mode 100644 index 0000000000..79931a88d3 --- /dev/null +++ b/zeno/src/nodes/prim/AsCurves.cpp @@ -0,0 +1,35 @@ +#include +#include +#include +#include + +#include "magic_enum.hpp" + +namespace zeno { + +struct AsCurves : zeno::INode { + virtual void apply() override { + + auto prim = get_input2("prim"); + + auto typeString = get_input2("type:"); + auto typeEnum = magic_enum::enum_cast(typeString).value_or(CurveType::LINEAR); + auto typeIndex = (int)magic_enum::enum_index(typeEnum).value_or(0); + + prim->userData().set2("curve", typeIndex); + set_output("prim", std::move(prim)); + } +}; + +ZENDEFNODE(AsCurves, +{ { + {"prim"}, + }, + {"prim"}, //output + { + {"enum " + zeno::CurveTypeListString(), "type", zeno::CurveTypeDefaultString() } + }, //prim + {"prim"} +}); + +} // namespace \ No newline at end of file diff --git a/zeno/src/nodes/prim/CyHair.cpp b/zeno/src/nodes/prim/CyHair.cpp new file mode 100644 index 0000000000..7f7fc88d77 --- /dev/null +++ b/zeno/src/nodes/prim/CyHair.cpp @@ -0,0 +1,43 @@ +#include +#include +#include +#include + +#include "magic_enum.hpp" + +#include +#include + +namespace zeno { + +struct CyHair : zeno::INode { + virtual void apply() override { + + auto path = get_input2("path"); + bool exist = std::filesystem::exists(path); + bool yup = get_input2("yup"); + + if (!exist) { + throw std::string("CyHair file doesn't exist"); + } + + auto out = std::make_shared(); + out->userData().set2("yup", yup); + out->userData().set2("path", path); + out->userData().set2("cyhair", true); + + set_output("out", std::move(out)); + } +}; + +ZENDEFNODE(CyHair, +{ { + {"readpath", "path"}, + {"bool", "yup", "1"}, + }, + {"out"}, //output + {}, + {"read"} +}); + +} // namespace \ No newline at end of file diff --git a/zeno/src/nodes/prim/SimpleGeometry.cpp b/zeno/src/nodes/prim/SimpleGeometry.cpp index 52c09cde8f..fc2c51c2ec 100644 --- a/zeno/src/nodes/prim/SimpleGeometry.cpp +++ b/zeno/src/nodes/prim/SimpleGeometry.cpp @@ -1283,10 +1283,10 @@ struct CreateSphere : zeno::INode { memcpy(row2.data(), transform_ptr+8, sizeof(float)*4); memcpy(row3.data(), transform_ptr+12, sizeof(float)*4); - prim->userData().set2("sphere_transform_row0", row0); - prim->userData().set2("sphere_transform_row1", row1); - prim->userData().set2("sphere_transform_row2", row2); - prim->userData().set2("sphere_transform_row3", row3); + prim->userData().set2("_transform_row0", row0); + prim->userData().set2("_transform_row1", row1); + prim->userData().set2("_transform_row2", row2); + prim->userData().set2("_transform_row3", row3); } set_output("prim",std::move(prim)); diff --git a/zeno/src/nodes/prim/TransformPrimitive.cpp b/zeno/src/nodes/prim/TransformPrimitive.cpp index 937a5140a9..ec7777f5c7 100644 --- a/zeno/src/nodes/prim/TransformPrimitive.cpp +++ b/zeno/src/nodes/prim/TransformPrimitive.cpp @@ -377,6 +377,19 @@ struct PrimitiveTransform : zeno::INode { } } + auto transform_ptr = glm::value_ptr(matrix); + + zeno::vec4f row0, row1, row2, row3; + memcpy(row0.data(), transform_ptr, sizeof(float)*4); + memcpy(row1.data(), transform_ptr+4, sizeof(float)*4); + memcpy(row2.data(), transform_ptr+8, sizeof(float)*4); + memcpy(row3.data(), transform_ptr+12, sizeof(float)*4); + + iObject->userData().set2("_transform_row0", row0); + iObject->userData().set2("_transform_row1", row1); + iObject->userData().set2("_transform_row2", row2); + iObject->userData().set2("_transform_row3", row3); + set_output("outPrim", std::move(iObject)); } }; diff --git a/zenovis/src/optx/RenderEngineOptx.cpp b/zenovis/src/optx/RenderEngineOptx.cpp index 8ef3ee2564..a511fb76d1 100644 --- a/zenovis/src/optx/RenderEngineOptx.cpp +++ b/zenovis/src/optx/RenderEngineOptx.cpp @@ -39,6 +39,9 @@ #include #include +#include +#include + namespace zenovis::optx { struct CppTimer { @@ -210,7 +213,82 @@ struct GraphicsManager { // ^^^ Don't wuhui, I mean: Literial Synthetic Lazy internal static Local Shared Pointer auto prim_in = prim_in_lslislSp.get(); - auto isInst = prim_in->userData().get2("isInst", 0); + if (prim_in->userData().has("curve") && prim_in->verts->size() && prim_in->verts.has_attr("width")) { + + auto& ud = prim_in->userData(); + auto mtlid = ud.get2("mtlid", "Default"); + auto curveTypeIndex = ud.get2("curve", 0u); + auto curveTypeEnum = magic_enum::enum_cast(curveTypeIndex).value_or(zeno::CurveType::LINEAR); + + auto& widthArray = prim_in->verts.attr("width"); + auto& pointArray = prim_in->verts; + + std::vector dummy {}; + + auto& normals = prim_in->verts.has_attr("v") ? reinterpret_cast&>(prim_in->verts.attr("v")) : dummy; + auto& points = reinterpret_cast&>(pointArray); + auto& widths = reinterpret_cast&>(widthArray); + + std::vector strands {}; + + int begin = 0; + int end = 1; + + if (prim_in->lines[0][1] < prim_in->lines[0][0]) { + std::swap(begin, end); + } + + strands.push_back(prim_in->lines[0][begin]); + + for (size_t i=1; ilines->size(); ++i) { + auto& prev_segment = prim_in->lines[i-1]; + auto& this_segment = prim_in->lines[i]; + + if (prev_segment[end] != this_segment[begin]) { // new strand + strands.push_back(this_segment[begin]); + } + } + + loadCurveGroup(points, widths, normals, strands, curveTypeEnum, mtlid); + return; + } + + auto is_cyhair = prim_in_lslislSp->userData().has("cyhair"); + if (is_cyhair) { + auto& ud = prim_in_lslislSp->userData(); + auto mtlid = ud.get2("mtlid", "Default"); + + auto type_index = ud.get2("curve", 0u); + auto path_string = ud.get2("path", ""); + + glm::mat4 transform(1.0f); + auto transform_ptr = glm::value_ptr(transform); + + if (ud.has("_transform_row0") && ud.has("_transform_row1") && ud.has("_transform_row2") && ud.has("_transform_row3")) { + + auto row0 = ud.get2("_transform_row0"); + auto row1 = ud.get2("_transform_row1"); + auto row2 = ud.get2("_transform_row2"); + auto row3 = ud.get2("_transform_row3"); + + memcpy(transform_ptr, row0.data(), sizeof(float)*4); + memcpy(transform_ptr+4, row1.data(), sizeof(float)*4); + memcpy(transform_ptr+8, row2.data(), sizeof(float)*4); + memcpy(transform_ptr+12, row3.data(), sizeof(float)*4); + } + + auto yup = ud.get2("yup", true); + auto trans = yup? glm::mat4 { + 0, 0, 1, 0, + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 0, 1 + } : glm::mat4(1.0); + + trans = transform * trans; + loadHair( path_string, mtlid, type_index, trans); + return; + } auto is_sphere = prim_in_lslislSp->userData().has("sphere_center"); if (is_sphere) { @@ -235,10 +313,10 @@ struct GraphicsManager { } else { //zeno::vec4f row0, row1, row2, row3; - auto row0 = ud.get2("sphere_transform_row0"); - auto row1 = ud.get2("sphere_transform_row1"); - auto row2 = ud.get2("sphere_transform_row2"); - auto row3 = ud.get2("sphere_transform_row3"); + auto row0 = ud.get2("_transform_row0"); + auto row1 = ud.get2("_transform_row1"); + auto row2 = ud.get2("_transform_row2"); + auto row3 = ud.get2("_transform_row3"); glm::mat4 sphere_transform; auto transform_ptr = glm::value_ptr(sphere_transform); @@ -279,6 +357,8 @@ struct GraphicsManager { auto isRealTimeObject = prim_in->userData().get2("isRealTimeObject", 0); auto isUniformCarrier = prim_in->userData().has("ShaderUniforms"); + + auto isInst = prim_in->userData().get2("isInst", 0); if (isInst == 1) { @@ -1026,8 +1106,10 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { ShaderTemplateInfo _light_shader_template { "Light.cu", false, {}, {}, {} }; - + std::set cachedMeshesMaterials, cachedSphereMaterials; + std::map> cachedCurvesMaterials; + std::map cachedMeshMatLUT; bool meshMatLUTChanged(std::map& newLUT) { bool changed = false; @@ -1118,8 +1200,6 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { scene->drawOptions->needRefresh = false; } - //std::cout << "Render Options: SimpleRender " << scene->drawOptions->simpleRender - // << " NeedRefresh " << scene->drawOptions->needRefresh << "\n"; if (sizeNeedUpdate) { zeno::log_debug("[zeno-optix] updating resolution"); @@ -1152,10 +1232,44 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { } if (meshNeedUpdate || matNeedUpdate || staticNeedUpdate) { - //zeno::log_debug("[zeno-optix] updating scene"); - //zeno::log_debug("[zeno-optix] updating material"); + + if ( matNeedUpdate && (staticNeedUpdate || meshNeedUpdate) ) { + cachedMeshesMaterials = xinxinoptix::uniqueMatsForMesh(); + cachedSphereMaterials = xinxinoptix::uniqueMatsForSphere(); + + for (auto& [key, _] : hair_xxx_cache) + { + auto& [filePath, mode, mtid] = key; + + auto ctype = (zeno::CurveType)mode; + + if (cachedCurvesMaterials.count(mtid) > 0) { + auto& ref = cachedCurvesMaterials.at(mtid); + ref.push_back( ctype ); + continue; + } + cachedCurvesMaterials[mtid] = { ctype }; + } + + for (auto& ele : curveGroupCache) { + + auto ctype = ele->curveType; + auto mtlid = ele->mtlid; + + if (cachedCurvesMaterials.count(mtlid) > 0) { + auto& ref = cachedCurvesMaterials.at(mtlid); + ref.push_back( ctype ); + continue; + } + cachedCurvesMaterials[mtlid] = { ctype }; + } + + } // preserve material names for materials-only updating case + std::vector> _meshes_shader_list{}; std::vector> _sphere_shader_list{}; + std::vector> _curves_shader_list{}; + std::vector> _volume_shader_list{}; std::map meshMatLUT{}; @@ -1168,21 +1282,23 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { ensure_shadtmpl(_volume_shader_template); ensure_shadtmpl(_light_shader_template); - { + if (cachedMeshesMaterials.count("Default")) { auto tmp = std::make_shared(); - tmp->mark = ShaderMaker::Mesh; + tmp->mark = ShaderMark::Mesh; tmp->matid = "Default"; tmp->filename = _default_shader_template.name; tmp->callable = _default_callable_template.shadtmpl; _meshes_shader_list.push_back(tmp); + + meshMatLUT.insert({"Default", 0}); } - { + if (cachedSphereMaterials.count("Default")) { auto tmp = std::make_shared(); - tmp->mark = ShaderMaker::Sphere; + tmp->mark = ShaderMark::Sphere; tmp->matid = "Default"; tmp->filename = _default_shader_template.name; tmp->callable = _default_callable_template.shadtmpl; @@ -1190,8 +1306,28 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { _sphere_shader_list.push_back(tmp); } - meshMatLUT.clear(); - meshMatLUT.insert({"Default", 0}); + unsigned int usesCurveTypeFlags = 0; + auto mark_task = [&usesCurveTypeFlags](zeno::CurveType ele) { + + usesCurveTypeFlags |= CURVE_FLAG_MAP.at(ele); + return CURVE_SHADER_MARK.at(ele); + }; + + if (cachedCurvesMaterials.count("Default") ) { + + auto& ref = cachedCurvesMaterials.at("Default"); + + for (auto& ele : ref) { + + auto tmp = std::make_shared(); + tmp->matid = "Default"; + tmp->filename = _default_shader_template.name; + tmp->callable = _default_callable_template.shadtmpl; + + tmp->mark = mark_task(ele); + _curves_shader_list.push_back(tmp); + } + } OptixUtil::g_vdb_indice_visible.clear(); OptixUtil::g_vdb_list_for_each_shader.clear(); @@ -1220,16 +1356,13 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { } } - if ( matNeedUpdate && (staticNeedUpdate || meshNeedUpdate) ) { - cachedMeshesMaterials = xinxinoptix::uniqueMatsForMesh(); - cachedSphereMaterials = xinxinoptix::uniqueMatsForSphere(); - } // preserve material names for materials-only updating case // Auto unload unused texure { std::set realNeedTexPaths; for(auto const &[matkey, mtldet] : matMap) { if (mtldet->parameters.find("vol") != std::string::npos + || cachedCurvesMaterials.count(mtldet->mtlidkey) > 0 || cachedMeshesMaterials.count(mtldet->mtlidkey) > 0 || cachedSphereMaterials.count(mtldet->mtlidkey) > 0) { @@ -1339,42 +1472,75 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { if (isVol) { - shaderP.mark = ShaderMaker::Volume; + shaderP.mark = ShaderMark::Volume; _volume_shader_list.push_back(std::make_shared(shaderP)); } else { if (cachedMeshesMaterials.count(mtldet->mtlidkey) > 0) { meshMatLUT.insert({mtldet->mtlidkey, (int)_meshes_shader_list.size()}); - shaderP.mark = ShaderMaker::Mesh; + shaderP.mark = ShaderMark::Mesh; _meshes_shader_list.push_back(std::make_shared(shaderP)); } if (cachedSphereMaterials.count(mtldet->mtlidkey) > 0) { - shaderP.mark = ShaderMaker::Sphere; + shaderP.mark = ShaderMark::Sphere; _sphere_shader_list.push_back(std::make_shared(shaderP)); } + + if (cachedCurvesMaterials.count(mtldet->mtlidkey) > 0) { + + auto& ref = cachedCurvesMaterials.at(mtldet->mtlidkey); + for (auto& ele : ref) { + + shaderP.mark = mark_task(ele); + _curves_shader_list.push_back(std::make_shared(shaderP)); + } + } } } - { + const auto requireTriangObj = !_meshes_shader_list.empty(); + const auto requireSphereObj = !_sphere_shader_list.empty(); + const auto requireVolumeObj = !_volume_shader_list.empty(); + + bool requireSphereLight = false; + bool requireTriangLight = false; + + for (const auto& [_, ld] : xinxinoptix::get_lightdats()) { + + const auto shape_enum = magic_enum::enum_cast(ld.shape).value_or(zeno::LightShape::Point); + + if (shape_enum == zeno::LightShape::Sphere) { + requireSphereLight = true; + } else if (shape_enum != zeno::LightShape::Point) { + requireTriangLight = true; + } + + if (requireSphereLight && requireTriangLight) { + break; + } + continue; + } + + if (requireTriangLight) { auto tmp = std::make_shared(); tmp->filename = _light_shader_template.name; tmp->callable = _default_callable_template.shadtmpl; - tmp->mark = ShaderMaker::Mesh; + tmp->mark = ShaderMark::Mesh; tmp->matid = "Light"; _meshes_shader_list.push_back(tmp); } - { + if (requireSphereLight) { auto tmp = std::make_shared(); tmp->filename = _light_shader_template.name; tmp->callable = _default_callable_template.shadtmpl; - tmp->mark = ShaderMaker::Sphere; + tmp->mark = ShaderMark::Sphere; tmp->matid = "Light"; _sphere_shader_list.push_back(tmp); @@ -1387,6 +1553,8 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { allShaders.insert(allShaders.end(), _sphere_shader_list.begin(), _sphere_shader_list.end()); allShaders.insert(allShaders.end(), _volume_shader_list.begin(), _volume_shader_list.end()); + allShaders.insert(allShaders.end(), _curves_shader_list.begin(), _curves_shader_list.end()); + const size_t sphere_shader_offset = _meshes_shader_list.size(); const size_t volume_shader_offset = _meshes_shader_list.size() + _sphere_shader_list.size(); @@ -1404,7 +1572,23 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { if (matNeedUpdate) { std::cout<<"shaders size "<< allShaders.size() << std::endl; - xinxinoptix::optixupdatematerial(allShaders); + + unsigned int usesPrimitiveTypeFlags = 0u; + if (requireTriangObj || requireTriangLight) + usesPrimitiveTypeFlags |= OPTIX_PRIMITIVE_TYPE_FLAGS_TRIANGLE; + if (requireSphereObj || requireSphereLight) + usesPrimitiveTypeFlags |= OPTIX_PRIMITIVE_TYPE_FLAGS_SPHERE; + if (requireVolumeObj) + usesPrimitiveTypeFlags |= OPTIX_PRIMITIVE_TYPE_FLAGS_CUSTOM; + if (usesCurveTypeFlags) + usesPrimitiveTypeFlags |= usesCurveTypeFlags; + + auto refresh = OptixUtil::configPipeline((OptixPrimitiveTypeFlags)usesPrimitiveTypeFlags); + + xinxinoptix::updateShaders(allShaders, + requireTriangObj, requireTriangLight, + requireSphereObj, requireSphereLight, + requireVolumeObj, usesCurveTypeFlags, refresh); xinxinoptix::updateVolume(volume_shader_offset); } @@ -1435,6 +1619,7 @@ struct RenderEngineOptx : RenderEngine, zeno::disable_copy { xinxinoptix::updateSphereXAS(); OptixUtil::logInfoVRAM("After update Sphere"); + xinxinoptix::updateCurves(); xinxinoptix::UpdateStaticInstMesh(meshMatLUT); xinxinoptix::UpdateDynamicInstMesh(meshMatLUT); diff --git a/zenovis/xinxinoptix/CMakeLists.txt b/zenovis/xinxinoptix/CMakeLists.txt index 0a927a9b76..7a7b2ca679 100644 --- a/zenovis/xinxinoptix/CMakeLists.txt +++ b/zenovis/xinxinoptix/CMakeLists.txt @@ -26,6 +26,8 @@ target_sources(zenovis PRIVATE TypeCaster.cpp TypeCaster.h + GeometryAux.h + SDK/sutil/Aabb.h SDK/sutil/Quaternion.h SDK/sutil/Camera.cpp SDK/sutil/Record.h SDK/sutil/Camera.h SDK/cuda/climits.h @@ -37,8 +39,12 @@ target_sources(zenovis PRIVATE SDK/sutil/PPMLoader.cpp SDK/sutil/Trackball.h SDK/sutil/PPMLoader.h SDK/sutil/vec_math.h SDK/sutil/Preprocessor.h SDK/sutil/WorkDistribution.h + ) +file(GLOB hair_src "hair/*.h" "hair/*.cpp") +target_sources(zenovis PRIVATE ${hair_src}) + find_package(CUDAToolkit REQUIRED COMPONENTS cudart nvrtc REQUIRED) target_link_libraries(zenovis PRIVATE CUDA::cudart CUDA::nvrtc) @@ -58,11 +64,8 @@ target_link_libraries(zenovis PRIVATE TBB::tbb TBB::tbbmalloc) target_include_directories(zenovis PRIVATE ${OPTIX_PATH}/include) target_include_directories(zenovis PRIVATE SDK) +target_include_directories(zenovis PRIVATE SDK/cuda) target_include_directories(zenovis PRIVATE SDK/sutil) -target_include_directories(zenovis PRIVATE SDK/sdk_cuda) -target_include_directories(zenovis PRIVATE SDK/support) -target_include_directories(zenovis PRIVATE SDK/support/GLFW/include) -target_include_directories(zenovis PRIVATE SDK/support/imgui) target_include_directories(zenovis PRIVATE .) configure_file(sampleConfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/sampleConfig.h @ONLY) target_include_directories(zenovis PRIVATE ${CMAKE_CURRENT_BINARY_DIR}) @@ -110,7 +113,10 @@ set(FILE_LIST ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@cuda/helpers.h ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@cuda/climits.h ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@cuda/cstdint.h - + + ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@cuda/curve.h + ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@cuda/BufferView.h + ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@sutil/vec_math.h ${CMAKE_CURRENT_SOURCE_DIR}/SDK/@sutil/Preprocessor.h #include @@ -132,6 +138,8 @@ set(FILE_LIST ${CMAKE_CURRENT_SOURCE_DIR}/@LightBounds.h ${CMAKE_CURRENT_SOURCE_DIR}/@LightTree.h + ${CMAKE_CURRENT_SOURCE_DIR}/@GeometryAux.h + ${CMAKE_CURRENT_SOURCE_DIR}/@Curves.h ${CMAKE_CURRENT_SOURCE_DIR}/@Portal.h ${CMAKE_CURRENT_SOURCE_DIR}/@Sampling.h diff --git a/zenovis/xinxinoptix/Curves.h b/zenovis/xinxinoptix/Curves.h new file mode 100644 index 0000000000..1d7d4bd540 --- /dev/null +++ b/zenovis/xinxinoptix/Curves.h @@ -0,0 +1,141 @@ +#pragma once + +#include +#include + +#include +#include "GeometryAux.h" + +// Get curve hit-point in world coordinates. +static __forceinline__ __device__ float3 getHitPoint() +{ + const float t = optixGetRayTmax(); + const float3 rayOrigin = optixGetWorldRayOrigin(); + const float3 rayDirection = optixGetWorldRayDirection(); + + return rayOrigin + t * rayDirection; +} + +// Compute surface normal of quadratic pimitive in world space. +static __forceinline__ __device__ float3 normalLinear( const int primitiveIndex ) +{ + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int gasSbtIndex = optixGetSbtGASIndex(); + float4 controlPoints[2]; + + optixGetLinearCurveVertexData( gas, primitiveIndex, gasSbtIndex, 0.0f, controlPoints ); + + LinearInterpolator interpolator; + interpolator.initialize(controlPoints); + + float3 hitPoint = getHitPoint(); + // interpolators work in object space + hitPoint = optixTransformPointFromWorldToObjectSpace( hitPoint ); + const float3 normal = surfaceNormal( interpolator, optixGetCurveParameter(), hitPoint ); + return optixTransformNormalFromObjectToWorldSpace( normal ); +} + +// Compute surface normal of quadratic pimitive in world space. +static __forceinline__ __device__ float3 normalQuadratic( const int primitiveIndex ) +{ + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int gasSbtIndex = optixGetSbtGASIndex(); + float4 controlPoints[3]; + + optixGetQuadraticBSplineVertexData( gas, primitiveIndex, gasSbtIndex, 0.0f, controlPoints ); + + QuadraticInterpolator interpolator; + interpolator.initializeFromBSpline(controlPoints); + + float3 hitPoint = getHitPoint(); + // interpolators work in object space + hitPoint = optixTransformPointFromWorldToObjectSpace( hitPoint ); + const float3 normal = surfaceNormal( interpolator, optixGetCurveParameter(), hitPoint ); + return optixTransformNormalFromObjectToWorldSpace( normal ); +} + +// Compute surface normal of cubic b-spline pimitive in world space. +static __forceinline__ __device__ float3 normalCubic( const int primitiveIndex ) +{ + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int gasSbtIndex = optixGetSbtGASIndex(); + float4 controlPoints[4]; + + optixGetCubicBSplineVertexData( gas, primitiveIndex, gasSbtIndex, 0.0f, controlPoints ); + + CubicInterpolator interpolator; + interpolator.initializeFromBSpline(controlPoints); + + float3 hitPoint = getHitPoint(); + // interpolators work in object space + hitPoint = optixTransformPointFromWorldToObjectSpace( hitPoint ); + const float3 normal = surfaceNormal( interpolator, optixGetCurveParameter(), hitPoint ); + return optixTransformNormalFromObjectToWorldSpace( normal ); +} + +// Compute surface normal of Catmull-Rom pimitive in world space. +static __forceinline__ __device__ float3 normalCatrom( const int primitiveIndex ) +{ + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int gasSbtIndex = optixGetSbtGASIndex(); + float4 controlPoints[4]; + + optixGetCatmullRomVertexData( gas, primitiveIndex, gasSbtIndex, 0.0f, controlPoints ); + + CubicInterpolator interpolator; + interpolator.initializeFromCatrom(controlPoints); + + float3 hitPoint = getHitPoint(); + // interpolators work in object space + hitPoint = optixTransformPointFromWorldToObjectSpace( hitPoint ); + const float3 normal = surfaceNormal( interpolator, optixGetCurveParameter(), hitPoint ); + return optixTransformNormalFromObjectToWorldSpace( normal ); +} + +// Compute surface normal of Catmull-Rom pimitive in world space. +static __forceinline__ __device__ float3 normalBezier( const int primitiveIndex ) +{ + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int gasSbtIndex = optixGetSbtGASIndex(); + float4 controlPoints[4]; + + optixGetCubicBezierVertexData( gas, primitiveIndex, gasSbtIndex, 0.0f, controlPoints ); + + CubicInterpolator interpolator; + interpolator.initializeFromBezier(controlPoints); + + float3 hitPoint = getHitPoint(); + // interpolators work in object space + hitPoint = optixTransformPointFromWorldToObjectSpace( hitPoint ); + const float3 normal = surfaceNormal( interpolator, optixGetCurveParameter(), hitPoint ); + return optixTransformNormalFromObjectToWorldSpace( normal ); +} + +// Compute normal +// +static __forceinline__ __device__ float3 computeCurveNormal( OptixPrimitiveType type, const int primitiveIndex ) +{ + switch( type ) { + case OPTIX_PRIMITIVE_TYPE_ROUND_LINEAR: + return normalLinear( primitiveIndex ); + case OPTIX_PRIMITIVE_TYPE_ROUND_QUADRATIC_BSPLINE: + return normalQuadratic( primitiveIndex ); + case OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BSPLINE: + return normalCubic( primitiveIndex ); + case OPTIX_PRIMITIVE_TYPE_ROUND_CATMULLROM: + return normalCatrom( primitiveIndex ); + case OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BEZIER: + return normalBezier( primitiveIndex ); + + case OPTIX_PRIMITIVE_TYPE_FLAT_QUADRATIC_BSPLINE: + { + const unsigned int prim_idx = optixGetPrimitiveIndex(); + const OptixTraversableHandle gas = optixGetGASTraversableHandle(); + const unsigned int sbtGASIndex = optixGetSbtGASIndex(); + const float2 uv = optixGetRibbonParameters(); + auto normal = optixGetRibbonNormal( gas, prim_idx, sbtGASIndex, 0.f /*time*/, uv ); + return normalize(normal); + } + } + return make_float3(0.0f); +} diff --git a/zenovis/xinxinoptix/DeflMatShader.cu b/zenovis/xinxinoptix/DeflMatShader.cu index 14da41c4c9..1d14dc9c93 100644 --- a/zenovis/xinxinoptix/DeflMatShader.cu +++ b/zenovis/xinxinoptix/DeflMatShader.cu @@ -16,6 +16,14 @@ #include +#ifndef __CUDACC_RTC__ +#define _P_TYPE_ 2 +#endif + +#if (_P_TYPE_==2) +#include "Curves.h" +#endif + static __inline__ __device__ bool isBadVector(const vec3& vector) { for (size_t i=0; i<3; ++i) { @@ -67,9 +75,21 @@ extern "C" __global__ void __anyhit__shadow_cutout() ShadowPRD* prd = getPRD(); MatInput attrs{}; + auto pType = optixGetPrimitiveType(); + if (pType != OPTIX_PRIMITIVE_TYPE_SPHERE && pType != OPTIX_PRIMITIVE_TYPE_TRIANGLE) { + + prd->attanuation = vec3(0); + optixTerminateRay(); + return; + } + bool sphere_external_ray = false; -#if (_SPHERE_) +#if (_P_TYPE_==2) + float3 N = {}; + printf("Should not reach here\n"); + return; +#elif (_P_TYPE_==1) float4 q; // sphere center (q.x, q.y, q.z), sphere radius q.w @@ -209,7 +229,7 @@ extern "C" __global__ void __anyhit__shadow_cutout() float p = rnd(prd->seed); float skip = opacity; - #if (_SPHERE_) + #if (_P_TYPE_==1) if (sphere_external_ray) { skip *= opacity; } @@ -258,7 +278,7 @@ extern "C" __global__ void __anyhit__shadow_cutout() vec3 fakeTrans = vec3(1)-BRDFBasics::fresnelSchlick(vec3(1) - mats.transColor,nDi); prd->attanuation = prd->attanuation * fakeTrans; - #if (_SPHERE_) + #if (_P_TYPE_==1) if (sphere_external_ray) { prd->attanuation *= vec3(1, 0, 0); if (nDi < (1.0f-_FLT_EPL_)) { @@ -309,7 +329,47 @@ extern "C" __global__ void __closesthit__radiance() MatInput attrs{}; float estimation = 0; -#if (_SPHERE_) +#if (_P_TYPE_==2) + + float3 N = {}; + + auto pType = optixGetPrimitiveType(); + if (pType == OPTIX_PRIMITIVE_TYPE_SPHERE || pType == OPTIX_PRIMITIVE_TYPE_TRIANGLE) { + prd->done = true; + return; + } + + float3 normal = computeCurveNormal( optixGetPrimitiveType(), primIdx ); + + if (dot(normal, -ray_dir) < 0) { + normal = -normal; + } + + N = normal; + + float3 wldPos = P; + float3 wldNorm = normal; + float wldOffset = 0.0f; + + prd->geometryNormal = N; + + attrs.pos = P; + attrs.nrm = N; + + auto hair_idx = optixGetInstanceId() - params.hairInstOffset; + auto hairAux = reinterpret_cast(params.hairAux); + + auto& aux = hairAux[hair_idx]; + + uint strandIndex = aux.strand_i[primIdx]; + + float segmentU = optixGetCurveParameter(); + float2 strand_u = aux.strand_u[primIdx]; + float u = strand_u.x + segmentU * strand_u.y; + + attrs.uv = {u, (float)strandIndex/ aux.strand_info.count, 0}; + +#elif (_P_TYPE_==1) float4 q; // sphere center (q.x, q.y, q.z), sphere radius q.w @@ -458,7 +518,12 @@ extern "C" __global__ void __closesthit__radiance() return; } -#if _SPHERE_ +#if (_P_TYPE_==2) + if(mats.doubleSide>0.5f||mats.thin>0.5f){ + N = faceforward( N, -ray_dir, N ); + prd->geometryNormal = N; + } +#elif (_P_TYPE_==1) if(mats.doubleSide>0.5f||mats.thin>0.5f){ N = faceforward( N, -ray_dir, N ); @@ -885,7 +950,12 @@ extern "C" __global__ void __closesthit__radiance() shadowPRD.nonThinTransHit = (mats.thin < 0.5f && mats.specTrans > 0) ? 1 : 0; float3 frontPos, backPos; - SelfIntersectionAvoidance::offsetSpawnPoint( frontPos, backPos, wldPos, prd->geometryNormal, wldOffset ); + if (wldOffset > 0) { + SelfIntersectionAvoidance::offsetSpawnPoint( frontPos, backPos, wldPos, prd->geometryNormal, wldOffset ); + } else { + frontPos = wldPos; + backPos = wldPos; + } shadowPRD.origin = dot(-ray_dir, wldNorm) > 0 ? frontPos : backPos; //auto shadingP = rtgems::offset_ray(shadowPRD.origin + params.cam.eye, prd->geometryNormal); // world space diff --git a/zenovis/xinxinoptix/GeometryAux.h b/zenovis/xinxinoptix/GeometryAux.h new file mode 100644 index 0000000000..90adbf1051 --- /dev/null +++ b/zenovis/xinxinoptix/GeometryAux.h @@ -0,0 +1,18 @@ +#pragma once + +#include +#include + +#ifndef __CUDACC_RTC__ +#include +#else +#define assert(x) /*nop*/ +#endif + +struct CurveGroupAux +{ + BufferView strand_u; // strand_u at segment start per segment + GenericBufferView strand_i; // strand index per segment + BufferView strand_info; // info.x = segment base + // info.y = strand length (segments) +}; diff --git a/zenovis/xinxinoptix/OptiXStuff.h b/zenovis/xinxinoptix/OptiXStuff.h index 9d7d0cb777..d9a64d14a5 100644 --- a/zenovis/xinxinoptix/OptiXStuff.h +++ b/zenovis/xinxinoptix/OptiXStuff.h @@ -68,13 +68,55 @@ namespace OptixUtil using namespace xinxinoptix; ////these are all material independent stuffs; inline raii context ; -inline OptixPipelineCompileOptions pipeline_compile_options {}; + +inline OptixPipelineCompileOptions pipeline_compile_options ; inline raii pipeline ; -inline raii ray_module ; -inline raii sphere_module ; + +inline raii raygen_module ; inline raii raygen_prog_group ; inline raii radiance_miss_group ; inline raii occlusion_miss_group ; + +inline raii d_raygen_record; +inline raii d_miss_records; +inline raii d_hitgroup_records; +inline raii d_callable_records; + +inline raii sphere_ism; + +inline raii round_linear_ism; +inline raii round_bezier_ism; +inline raii round_catrom_ism; + +inline raii round_quadratic_ism; +inline raii flat_quadratic_ism; +inline raii round_cubic_ism; + +inline std::vector< std::function > garbageTasks; + +inline void resetAll() { + + raygen_prog_group.reset(); + radiance_miss_group.reset(); + occlusion_miss_group.reset(); + + raygen_module.reset(); + + auto count = garbageTasks.size(); + for (auto& task : garbageTasks) { + task(); + } + garbageTasks.clear(); + + d_miss_records.reset(); + d_raygen_record.reset(); + d_hitgroup_records.reset(); + d_callable_records.reset(); + + pipeline.reset(); + context.reset(); +} + inline bool isPipelineCreated = false; ////end material independent stuffs @@ -106,6 +148,15 @@ inline void createContext() #endif options.validationMode = OPTIX_DEVICE_CONTEXT_VALIDATION_MODE_ALL; OPTIX_CHECK( optixDeviceContextCreate( cu_ctx, &options, &context ) ); +} + +inline uint CachedPrimitiveTypeFlags = OPTIX_PRIMITIVE_TYPE_FLAGS_TRIANGLE; + +inline bool configPipeline(OptixPrimitiveTypeFlags usesPrimitiveTypeFlags) { + + if (usesPrimitiveTypeFlags == CachedPrimitiveTypeFlags) { return false; } + CachedPrimitiveTypeFlags = usesPrimitiveTypeFlags; + pipeline_compile_options = {}; pipeline_compile_options.traversableGraphFlags = OPTIX_TRAVERSABLE_GRAPH_FLAG_ALLOW_ANY; //OPTIX_TRAVERSABLE_GRAPH_FLAG_ALLOW_SINGLE_LEVEL_INSTANCING | OPTIX_TRAVERSABLE_GRAPH_FLAG_ALLOW_SINGLE_GAS; pipeline_compile_options.usesMotionBlur = false; @@ -114,17 +165,46 @@ inline void createContext() pipeline_compile_options.pipelineLaunchParamsVariableName = "params"; pipeline_compile_options.exceptionFlags = OPTIX_EXCEPTION_FLAG_STACK_OVERFLOW | OPTIX_EXCEPTION_FLAG_TRACE_DEPTH | OPTIX_EXCEPTION_FLAG_DEBUG; - pipeline_compile_options.usesPrimitiveTypeFlags = OPTIX_PRIMITIVE_TYPE_FLAGS_TRIANGLE | OPTIX_PRIMITIVE_TYPE_FLAGS_SPHERE | OPTIX_PRIMITIVE_TYPE_FLAGS_CUSTOM; + //pipeline_compile_options.usesPrimitiveTypeFlags = OPTIX_PRIMITIVE_TYPE_FLAGS_TRIANGLE | OPTIX_PRIMITIVE_TYPE_FLAGS_CUSTOM | usesPrimitiveTypeFlags; + pipeline_compile_options.usesPrimitiveTypeFlags = usesPrimitiveTypeFlags; OptixModuleCompileOptions module_compile_options = DefaultCompileOptions(); OptixBuiltinISOptions builtin_is_options {}; + builtin_is_options.usesMotionBlur = false; + builtin_is_options.buildFlags = OPTIX_BUILD_FLAG_ALLOW_COMPACTION | OPTIX_BUILD_FLAG_ALLOW_RANDOM_VERTEX_ACCESS | OPTIX_BUILD_FLAG_ALLOW_RANDOM_INSTANCE_ACCESS; + + const static auto PrimitiveTypeConfigs = std::vector> { + + { OPTIX_PRIMITIVE_TYPE_FLAGS_SPHERE, OPTIX_PRIMITIVE_TYPE_SPHERE, &sphere_ism }, + + { OPTIX_PRIMITIVE_TYPE_FLAGS_ROUND_LINEAR, OPTIX_PRIMITIVE_TYPE_ROUND_LINEAR, &round_linear_ism }, + { OPTIX_PRIMITIVE_TYPE_FLAGS_ROUND_CATMULLROM, OPTIX_PRIMITIVE_TYPE_ROUND_CATMULLROM, &round_catrom_ism }, + { OPTIX_PRIMITIVE_TYPE_FLAGS_ROUND_CUBIC_BEZIER, OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BEZIER, &round_bezier_ism }, + + { OPTIX_PRIMITIVE_TYPE_FLAGS_FLAT_QUADRATIC_BSPLINE, OPTIX_PRIMITIVE_TYPE_FLAT_QUADRATIC_BSPLINE, &flat_quadratic_ism }, + { OPTIX_PRIMITIVE_TYPE_FLAGS_ROUND_QUADRATIC_BSPLINE, OPTIX_PRIMITIVE_TYPE_ROUND_QUADRATIC_BSPLINE, &round_quadratic_ism }, + { OPTIX_PRIMITIVE_TYPE_FLAGS_ROUND_CUBIC_BSPLINE, OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BSPLINE, &round_cubic_ism } + }; - builtin_is_options.usesMotionBlur = false; - builtin_is_options.buildFlags = OPTIX_BUILD_FLAG_ALLOW_COMPACTION | OPTIX_BUILD_FLAG_ALLOW_RANDOM_VERTEX_ACCESS | OPTIX_BUILD_FLAG_ALLOW_RANDOM_INSTANCE_ACCESS; - builtin_is_options.builtinISModuleType = OPTIX_PRIMITIVE_TYPE_SPHERE; - OPTIX_CHECK( optixBuiltinISModuleGet( context, &module_compile_options, &pipeline_compile_options, - &builtin_is_options, &sphere_module ) ); + auto count = garbageTasks.size(); + for (auto& task : garbageTasks) { + task(); + } + garbageTasks.clear(); + + for (auto& [pflag, ptype, module_ptr] : PrimitiveTypeConfigs) { + if (pflag & pipeline_compile_options.usesPrimitiveTypeFlags) { + builtin_is_options.builtinISModuleType = ptype; + OPTIX_CHECK( optixBuiltinISModuleGet( context, &module_compile_options, &pipeline_compile_options, &builtin_is_options, module_ptr ) ); + + garbageTasks.push_back([module_ptr=module_ptr](){ + optixModuleDestroy(*module_ptr); + *module_ptr = 0u; + }); + } //if + } + return true; } #define COMPILE_WITH_TASKS_CHECK( call ) check( call, #call, __FILE__, __LINE__ ) @@ -178,9 +258,9 @@ static std::vector readData(std::string const& filename) return data; } -inline bool createModule(OptixModule &module, OptixDeviceContext &context, const char *source, const char *name, const char *macro=nullptr, tbb::task_group* _c_group = nullptr) +inline bool createModule(OptixModule &module, OptixDeviceContext &context, const char *source, const char *name, const std::vector& macros={}, tbb::task_group* _c_group = nullptr) { - OptixModuleCompileOptions module_compile_options = DefaultCompileOptions(); + OptixModuleCompileOptions module_compile_options = OptixUtil::DefaultCompileOptions(); module_compile_options.maxRegisterCount = OPTIX_COMPILE_DEFAULT_MAX_REGISTER_COUNT; char log[2048]; @@ -202,11 +282,14 @@ inline bool createModule(OptixModule &module, OptixDeviceContext &context, const ,"--split-compile=0" }; - if (macro != nullptr) { - compilerOptions.push_back(macro); + std::string flat_macros = ""; + + for (auto &ele : macros) { + compilerOptions.push_back(ele.c_str()); + flat_macros += ele; } - const char* input = sutil::getCodePTX( source, macro, name, inputSize, is_success, nullptr, compilerOptions); + const char* input = sutil::getCodePTX( source, flat_macros.c_str(), name, inputSize, is_success, nullptr, compilerOptions); if(is_success==false) { @@ -257,7 +340,7 @@ inline void createRenderGroups(OptixDeviceContext &context, OptixModule &_module &program_group_options, log, &sizeof_log, - &raygen_prog_group + &raygen_prog_group.reset() ) ); } @@ -272,7 +355,7 @@ inline void createRenderGroups(OptixDeviceContext &context, OptixModule &_module 1, // num program groups &program_group_options, log, &sizeof_log, - &radiance_miss_group + &radiance_miss_group.reset() ) ); memset( &desc, 0, sizeof( OptixProgramGroupDesc ) ); desc.kind = OPTIX_PROGRAM_GROUP_KIND_MISS; @@ -285,11 +368,9 @@ inline void createRenderGroups(OptixDeviceContext &context, OptixModule &_module &program_group_options, log, &sizeof_log, - &occlusion_miss_group + &occlusion_miss_group.reset() ) ); } - - } inline void createRTProgramGroups(OptixDeviceContext &context, OptixModule &_module, @@ -305,17 +386,21 @@ inline void createRTProgramGroups(OptixDeviceContext &context, OptixModule &_mod OptixProgramGroupDesc desc = {}; desc.kind = OPTIX_PROGRAM_GROUP_KIND_HITGROUP; + const char* entryName = entry.empty()? nullptr:entry.c_str(); + +if (entryName != nullptr) { if(kind == "OPTIX_PROGRAM_GROUP_KIND_CLOSEHITGROUP") { desc.hitgroup.moduleCH = _module; - desc.hitgroup.entryFunctionNameCH = entry.c_str(); + desc.hitgroup.entryFunctionNameCH = entryName; } else if(kind == "OPTIX_PROGRAM_GROUP_KIND_ANYHITGROUP") { - desc.hitgroup.moduleAH = _module; - desc.hitgroup.entryFunctionNameAH = entry.c_str(); + desc.hitgroup.moduleAH = _module; + desc.hitgroup.entryFunctionNameAH = entryName; } +} if (moduleIS != nullptr) { desc.hitgroup.moduleIS = *moduleIS; @@ -1053,15 +1138,18 @@ struct OptixShaderCore { _occlusionEntry = occlusionEntry; } - bool loadProgram(uint idx, const char* macro=nullptr, tbb::task_group* _c_group = nullptr) + bool loadProgram(uint idx, const std::vector ¯o_list = {}, tbb::task_group* _c_group = nullptr) { std::string tmp_name = "MatShader.cu"; tmp_name = "$" + std::to_string(idx) + tmp_name; - if(createModule(module.reset(), context, _source, tmp_name.c_str(), macro, _c_group)) + if(createModule(module.reset(), context, _source, tmp_name.c_str(), macro_list, _c_group)) { std::cout<<"module created"< macros {}; + + if (fallback) { + macros.push_back("--define-macro=_FALLBACK_"); } - auto callable_done = createModule(callable_module.reset(), context, callable.c_str(), tmp_name.c_str(), macro.empty()? nullptr:macro.c_str()); + auto callable_done = createModule(callable_module.reset(), context, callable.c_str(), tmp_name.c_str(), macros); if (callable_done) { // Callable programs @@ -1124,7 +1213,7 @@ struct OptixShaderWrapper size_t LOG_SIZE = sizeof( LOG ); OPTIX_CHECK( - optixProgramGroupCreate( context, callable_prog_group_descs, 1, &callable_prog_group_options, LOG, &LOG_SIZE, &callable_prog_group.reset()); + optixProgramGroupCreate( context, callable_prog_group_descs, 1, &callable_prog_group_options, LOG, &LOG_SIZE, &callable_prog_group.reset()) ); return true; } @@ -1164,7 +1253,7 @@ inline void createPipeline() size_t num_progs = 3 + rtMaterialShaders.size() * 2; num_progs += rtMaterialShaders.size(); // callables; - OptixProgramGroup* program_groups = new OptixProgramGroup[num_progs]; + std::vector program_groups(num_progs, {}); program_groups[0] = raygen_prog_group; program_groups[1] = radiance_miss_group; program_groups[2] = occlusion_miss_group; @@ -1187,7 +1276,7 @@ inline void createPipeline() context, &pipeline_compile_options, &pipeline_link_options, - program_groups, + program_groups.data(), num_progs, log, &sizeof_log, @@ -1229,8 +1318,6 @@ inline void createPipeline() continuation_stack_size, max_traversal_depth ) ); - delete[]program_groups; - } diff --git a/zenovis/xinxinoptix/SDK/cuda/curve.h b/zenovis/xinxinoptix/SDK/cuda/curve.h index b24ffa8189..29e839389e 100644 --- a/zenovis/xinxinoptix/SDK/cuda/curve.h +++ b/zenovis/xinxinoptix/SDK/cuda/curve.h @@ -1,5 +1,5 @@ // -// Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved. +// Copyright (c) 2023, NVIDIA CORPORATION. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions @@ -31,209 +31,248 @@ #include #include + // // First order polynomial interpolator // -struct LinearBSplineSegment +struct LinearInterpolator { - __device__ __forceinline__ LinearBSplineSegment() {} - __device__ __forceinline__ LinearBSplineSegment( const float4* q ) { initialize( q ); } + __device__ __forceinline__ LinearInterpolator() {} __device__ __forceinline__ void initialize( const float4* q ) { p[0] = q[0]; - p[1] = q[1] - q[0]; // pre-transform p[] for fast evaluation + p[1] = q[1] - q[0]; } - __device__ __forceinline__ float radius( const float& u ) const { return p[0].w + p[1].w * u; } - __device__ __forceinline__ float3 position3( float u ) const { return (float3&)p[0] + u * (float3&)p[1]; } - __device__ __forceinline__ float4 position4( float u ) const { return p[0] + u * p[1]; } + __device__ __forceinline__ float4 position4( float u ) const + { + return p[0] + u * p[1]; // Horner scheme + } - __device__ __forceinline__ float min_radius( float u1, float u2 ) const + __device__ __forceinline__ float3 position3( float u ) const { - return fminf( radius( u1 ), radius( u2 ) ); + return make_float3( position4( u ) ); } - __device__ __forceinline__ float max_radius( float u1, float u2 ) const + __device__ __forceinline__ float radius( const float& u ) const { - if( !p[1].w ) - return p[0].w; // a quick bypass for constant width - return fmaxf( radius( u1 ), radius( u2 ) ); + return position4( u ).w; } - __device__ __forceinline__ float3 velocity3( float u ) const { return (float3&)p[1]; } - __device__ __forceinline__ float4 velocity4( float u ) const { return p[1]; } + __device__ __forceinline__ float4 velocity4( float u ) const + { + return p[1]; + } + + __device__ __forceinline__ float3 velocity3( float u ) const + { + return make_float3( velocity4( u ) ); + } + + __device__ __forceinline__ float derivative_of_radius( float u ) const + { + return velocity4( u ).w; + } __device__ __forceinline__ float3 acceleration3( float u ) const { return make_float3( 0.f ); } __device__ __forceinline__ float4 acceleration4( float u ) const { return make_float4( 0.f ); } - __device__ __forceinline__ float derivative_of_radius( float u ) const { return p[1].w; } - float4 p[2]; // pre-transformed "control points" for fast evaluation + float4 p[2]; }; // // Second order polynomial interpolator // -struct QuadraticBSplineSegment +struct QuadraticInterpolator { - __device__ __forceinline__ QuadraticBSplineSegment() {} - __device__ __forceinline__ QuadraticBSplineSegment( const float4* q ) { initializeFromBSpline( q ); } + __device__ __forceinline__ QuadraticInterpolator() {} __device__ __forceinline__ void initializeFromBSpline( const float4* q ) { - // pre-transform control-points for fast evaluation - p[0] = q[1] / 2.0f + q[0] / 2.0f; - p[1] = q[1] - q[0]; - p[2] = q[0] / 2.0f - q[1] + q[2] / 2.0f; + // Bspline-to-Poly = Matrix([[1/2, -1, 1/2], + // [-1, 1, 0], + // [1/2, 1/2, 0]]) + p[0] = ( q[0] - 2.0f * q[1] + q[2] ) / 2.0f; + p[1] = ( -2.0f * q[0] + 2.0f * q[1] ) / 2.0f; + p[2] = ( q[0] + q[1] ) / 2.0f; } __device__ __forceinline__ void export2BSpline( float4 bs[3] ) const { + // inverse of initializeFromBSpline + // Bspline-to-Poly = Matrix([[1/2, -1, 1/2], + // [-1, 1, 0], + // [1/2, 1/2, 0]]) + // invert to get: + // Poly-to-Bspline = Matrix([[0, -1/2, 1], + // [0, 1/2, 1], + // [2, 3/2, 1]]) bs[0] = p[0] - p[1] / 2; bs[1] = p[0] + p[1] / 2; bs[2] = p[0] + 1.5f * p[1] + 2 * p[2]; } + __device__ __forceinline__ float4 position4( float u ) const + { + return ( p[0] * u + p[1] ) * u + p[2]; // Horner scheme + } + __device__ __forceinline__ float3 position3( float u ) const { - return (float3&)p[0] + u * (float3&)p[1] + u * u * (float3&)p[2]; + return make_float3( position4( u ) ); } - __device__ __forceinline__ float4 position4( float u ) const { return p[0] + u * p[1] + u * u * p[2]; } - __device__ __forceinline__ float radius( float u ) const { return p[0].w + u * ( p[1].w + u * p[2].w ); } + __device__ __forceinline__ float radius( float u ) const + { + return position4( u ).w; + } + + __device__ __forceinline__ float4 velocity4( float u ) const + { + return 2.0f * p[0] * u + p[1]; + } - __device__ __forceinline__ float min_radius( float u1, float u2 ) const + __device__ __forceinline__ float3 velocity3( float u ) const { - float root1 = clamp( -0.5f * p[1].w / p[2].w, u1, u2 ); - return fminf( fminf( radius( u1 ), radius( u2 ) ), radius( root1 ) ); + return make_float3( velocity4( u ) ); } - __device__ __forceinline__ float max_radius( float u1, float u2 ) const + __device__ __forceinline__ float derivative_of_radius( float u ) const { - if( !p[1].w && !p[2].w ) - return p[0].w; // a quick bypass for constant width - float root1 = clamp( -0.5f * p[1].w / p[2].w, u1, u2 ); - return fmaxf( fmaxf( radius( u1 ), radius( u2 ) ), radius( root1 ) ); + return velocity4( u ).w; } - __device__ __forceinline__ float3 velocity3( float u ) const { return (float3&)p[1] + 2 * u * (float3&)p[2]; } - __device__ __forceinline__ float4 velocity4( float u ) const { return p[1] + 2 * u * p[2]; } + __device__ __forceinline__ float4 acceleration4( float u ) const + { + return 2.0f * p[0]; + } - __device__ __forceinline__ float3 acceleration3( float u ) const { return 2 * (float3&)p[2]; } - __device__ __forceinline__ float4 acceleration4( float u ) const { return 2 * p[2]; } + __device__ __forceinline__ float3 acceleration3( float u ) const + { + return make_float3( acceleration4( u ) ); + } - __device__ __forceinline__ float derivative_of_radius( float u ) const { return p[1].w + 2 * u * p[2].w; } - float4 p[3]; // pre-transformed "control points" for fast evaluation + float4 p[3]; }; // // Third order polynomial interpolator // -struct CubicBSplineSegment +// Storing {p0, p1, p2, p3} for evaluation: +// P(u) = p0 * u^3 + p1 * u^2 + p2 * u + p3 +// +struct CubicInterpolator { - __device__ __forceinline__ CubicBSplineSegment() {} - __device__ __forceinline__ CubicBSplineSegment( const float4* q ) { initializeFromBSpline( q ); } + __device__ __forceinline__ CubicInterpolator() {} __device__ __forceinline__ void initializeFromBSpline( const float4* q ) { - // pre-transform control points for fast evaluation - p[0] = ( q[2] + q[0] ) / 6 + ( 4 / 6.0f ) * q[1]; - p[1] = q[2] - q[0]; - p[2] = q[2] - q[1]; - p[3] = q[3] - q[1]; + // Bspline-to-Poly = Matrix([[-1/6, 1/2, -1/2, 1/6], + // [ 1/2, -1, 1/2, 0], + // [-1/2, 0, 1/2, 0], + // [ 1/6, 2/3, 1/6, 0]]) + p[0] = ( q[0] * ( -1.0f ) + q[1] * ( 3.0f ) + q[2] * ( -3.0f ) + q[3] ) / 6.0f; + p[1] = ( q[0] * ( 3.0f ) + q[1] * ( -6.0f ) + q[2] * ( 3.0f ) ) / 6.0f; + p[2] = ( q[0] * ( -3.0f ) + q[2] * ( 3.0f ) ) / 6.0f; + p[3] = ( q[0] * ( 1.0f ) + q[1] * ( 4.0f ) + q[2] * ( 1.0f ) ) / 6.0f; } __device__ __forceinline__ void export2BSpline( float4 bs[4] ) const { // inverse of initializeFromBSpline - bs[0] = p[0] + ( 4 * p[2] - 5 * p[1] ) / 6; - bs[1] = p[0] + ( p[1] - 2 * p[2] ) / 6; - bs[2] = p[0] + ( p[1] + 4 * p[2] ) / 6; - bs[3] = p[0] + p[3] + ( p[1] - 2 * p[2] ) / 6; + // Bspline-to-Poly = Matrix([[-1/6, 1/2, -1/2, 1/6], + // [ 1/2, -1, 1/2, 0], + // [-1/2, 0, 1/2, 0], + // [ 1/6, 2/3, 1/6, 0]]) + // invert to get: + // Poly-to-Bspline = Matrix([[0, 2/3, -1, 1], + // [0, -1/3, 0, 1], + // [0, 2/3, 1, 1], + // [6, 11/3, 2, 1]]) + bs[0] = ( p[1] * ( 2.0f ) + p[2] * ( -1.0f ) + p[3] ) / 3.0f; + bs[1] = ( p[1] * ( -1.0f ) + p[3] ) / 3.0f; + bs[2] = ( p[1] * ( 2.0f ) + p[2] * ( 1.0f ) + p[3] ) / 3.0f; + bs[3] = ( p[0] + p[1] * ( 11.0f ) + p[2] * ( 2.0f ) + p[3] ) / 3.0f; } - __device__ __forceinline__ static float3 terms( float u ) + + __device__ __forceinline__ void initializeFromCatrom(const float4* q) { - float uu = u * u; - float u3 = ( 1 / 6.0f ) * uu * u; - return make_float3( u3 + 0.5f * ( u - uu ), uu - 4 * u3, u3 ); + // Catrom-to-Poly = Matrix([[-1/2, 3/2, -3/2, 1/2], + // [1, -5/2, 2, -1/2], + // [-1/2, 0, 1/2, 0], + // [0, 1, 0, 0]]) + p[0] = ( -1.0f * q[0] + ( 3.0f ) * q[1] + ( -3.0f ) * q[2] + ( 1.0f ) * q[3] ) / 2.0f; + p[1] = ( 2.0f * q[0] + ( -5.0f ) * q[1] + ( 4.0f ) * q[2] + ( -1.0f ) * q[3] ) / 2.0f; + p[2] = ( -1.0f * q[0] + ( 1.0f ) * q[2] ) / 2.0f; + p[3] = ( ( 2.0f ) * q[1] ) / 2.0f; } - __device__ __forceinline__ float3 position3( float u ) const + __device__ __forceinline__ void export2Catrom(float4 cr[4]) const { - float3 q = terms( u ); - return (float3&)p[0] + q.x * (float3&)p[1] + q.y * (float3&)p[2] + q.z * (float3&)p[3]; + // Catrom-to-Poly = Matrix([[-1/2, 3/2, -3/2, 1/2], + // [1, -5/2, 2, -1/2], + // [-1/2, 0, 1/2, 0], + // [0, 1, 0, 0]]) + // invert to get: + // Poly-to-Catrom = Matrix([[1, 1, -1, 1], + // [0, 0, 0, 1], + // [1, 1, 1, 1], + // [6, 4, 2, 1]]) + cr[0] = ( p[0] * 6.f/6.f ) - ( p[1] * 5.f/6.f ) + ( p[2] * 2.f/6.f ) + ( p[3] * 1.f/6.f ); + cr[1] = ( p[0] * 6.f/6.f ) ; + cr[2] = ( p[0] * 6.f/6.f ) + ( p[1] * 1.f/6.f ) + ( p[2] * 2.f/6.f ) + ( p[3] * 1.f/6.f ); + cr[3] = ( p[0] * 6.f/6.f ) + ( p[3] * 6.f/6.f ); } - __device__ __forceinline__ float4 position4( float u ) const + + __device__ __forceinline__ void initializeFromBezier(const float4* q) { - float3 q = terms( u ); - return p[0] + q.x * p[1] + q.y * p[2] + q.z * p[3]; + // Bezier-to-Poly = Matrix([[-1, 3, -3, 1], + // [ 3, -6, 3, 0], + // [-3, 3, 0, 0], + // [ 1, 0, 0, 0]]) + p[0] = q[0] * ( -1.0f ) + q[1] * ( 3.0f ) + q[2] * ( -3.0f ) + q[3]; + p[1] = q[0] * ( 3.0f ) + q[1] * ( -6.0f ) + q[2] * ( 3.0f ); + p[2] = q[0] * ( -3.0f ) + q[1] * ( 3.0f ); + p[3] = q[0]; } - __device__ __forceinline__ float radius( float u ) const + __device__ __forceinline__ void export2Bezier(float4 bz[4]) const { - return p[0].w + u * ( p[1].w / 2 + u * ( ( p[2].w - p[1].w / 2 ) + u * ( p[1].w - 4 * p[2].w + p[3].w ) / 6 ) ); + // inverse of initializeFromBezier + // Bezier-to-Poly = Matrix([[-1, 3, -3, 1], + // [ 3, -6, 3, 0], + // [-3, 3, 0, 0], + // [ 1, 0, 0, 0]]) + // invert to get: + // Poly-to-Bezier = Matrix([[0, 0, 0, 1], + // [0, 0, 1/3, 1], + // [0, 1/3, 2/3, 1], + // [1, 1, 1, 1]]) + bz[0] = p[3]; + bz[1] = p[2] * (1.f/3.f) + p[3]; + bz[2] = p[1] * (1.f/3.f) + p[2] * (2.f/3.f) + p[3]; + bz[3] = p[0] + p[1] + p[2] + p[3]; } - __device__ __forceinline__ float min_radius( float u1, float u2 ) const + __device__ __forceinline__ float4 position4( float u ) const { - // a + 2 b u - c u^2 - float a = p[1].w; - float b = 2 * p[2].w - p[1].w; - float c = 4 * p[2].w - p[1].w - p[3].w; - float rmin = fminf( radius( u1 ), radius( u2 ) ); - if( fabsf( c ) < 1e-5f ) - { - float root1 = clamp( -0.5f * a / b, u1, u2 ); - return fminf( rmin, radius( root1 ) ); - } - else - { - float det = b * b + a * c; - det = det <= 0.0f ? 0.0f : sqrt( det ); - float root1 = clamp( ( b + det ) / c, u1, u2 ); - float root2 = clamp( ( b - det ) / c, u1, u2 ); - return fminf( rmin, fminf( radius( root1 ), radius( root2 ) ) ); - } - } + return ( ( ( p[0] * u ) + p[1] ) * u + p[2] ) * u + p[3]; // Horner scheme + } - __device__ __forceinline__ float max_radius( float u1, float u2 ) const + __device__ __forceinline__ float3 position3( float u ) const { - if( !p[1].w && !p[2].w && !p[3].w ) - return p[0].w; // a quick bypass for constant width - // a + 2 b u - c u^2 - float a = p[1].w; - float b = 2 * p[2].w - p[1].w; - float c = 4 * p[2].w - p[1].w - p[3].w; - float rmax = fmaxf( radius( u1 ), radius( u2 ) ); - if( fabsf( c ) < 1e-5f ) - { - float root1 = clamp( -0.5f * a / b, u1, u2 ); - return fmaxf( rmax, radius( root1 ) ); - } - else - { - float det = b * b + a * c; - det = det <= 0.0f ? 0.0f : sqrt( det ); - float root1 = clamp( ( b + det ) / c, u1, u2 ); - float root2 = clamp( ( b - det ) / c, u1, u2 ); - return fmaxf( rmax, fmaxf( radius( root1 ), radius( root2 ) ) ); - } + // rely on compiler and inlining for dead code removal + return make_float3( position4( u ) ); } - - __device__ __forceinline__ float3 velocity3( float u ) const + __device__ __forceinline__ float radius( float u ) const { - // adjust u to avoid problems with tripple knots. - if( u == 0 ) - u = 0.000001f; - if( u == 1 ) - u = 0.999999f; - float v = 1 - u; - return 0.5f * v * v * (float3&)p[1] + 2 * v * u * (float3&)p[2] + 0.5f * u * u * (float3&)p[3]; + return position4( u ).w; } __device__ __forceinline__ float4 velocity4( float u ) const @@ -243,25 +282,33 @@ struct CubicBSplineSegment u = 0.000001f; if( u == 1 ) u = 0.999999f; - float v = 1 - u; - return 0.5f * v * v * p[1] + 2 * v * u * p[2] + 0.5f * u * u * p[3]; + return ( ( 3.0f * p[0] * u ) + 2.0f * p[1] ) * u + p[2]; } - __device__ __forceinline__ float3 acceleration3( float u ) const { return make_float3( acceleration4( u ) ); } - __device__ __forceinline__ float4 acceleration4( float u ) const + __device__ __forceinline__ float3 velocity3( float u ) const { - return 2 * p[2] - p[1] + ( p[1] - 4 * p[2] + p[3] ) * u; + return make_float3( velocity4( u ) ); } __device__ __forceinline__ float derivative_of_radius( float u ) const { - float v = 1 - u; - return 0.5f * v * v * p[1].w + 2 * v * u * p[2].w + 0.5f * u * u * p[3].w; + return velocity4( u ).w; + } + + __device__ __forceinline__ float4 acceleration4( float u ) const + { + return 6.0f * p[0] * u + 2.0f * p[1]; // Horner scheme } - float4 p[4]; // pre-transformed "control points" for fast evaluation + __device__ __forceinline__ float3 acceleration3( float u ) const + { + return make_float3( acceleration4( u ) ); + } + + float4 p[4]; }; + // Compute curve primitive surface normal in object space. // // Template parameters: @@ -332,18 +379,18 @@ __device__ __forceinline__ float3 surfaceNormal( const CurveType& bc, float u, f } template -__device__ __forceinline__ float3 surfaceNormal( const LinearBSplineSegment& bc, float u, float3& ps ) +__device__ __forceinline__ float3 surfaceNormal( const LinearInterpolator& bc, float u, float3& ps ) { float3 normal; if( u == 0.0f ) { - normal = ps - (float3&)(bc.p[0]); // special handling for round endcaps + normal = ps - ( float3 & )( bc.p[0] ); // special handling for round endcaps } else if( u >= 1.0f ) { // reconstruct second control point (Note: the interpolator pre-transforms // the control-points to speed up repeated evaluation. - const float3 p1 = (float3&)(bc.p[1]) + (float3&)(bc.p[0]); + const float3 p1 = ( float3 & ) (bc.p[1] ) + ( float3 & )( bc.p[0] ); normal = ps - p1; // special handling for round endcaps } else diff --git a/zenovis/xinxinoptix/SDK/support/CMakeLists.txt b/zenovis/xinxinoptix/SDK/support/CMakeLists.txt deleted file mode 100644 index bf99db65c0..0000000000 --- a/zenovis/xinxinoptix/SDK/support/CMakeLists.txt +++ /dev/null @@ -1,73 +0,0 @@ -# -# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# * Neither the name of NVIDIA CORPORATION nor the names of its -# contributors may be used to endorse or promote products derived -# from this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY -# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR -# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR -# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY -# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -# - -find_package( OpenGL REQUIRED ) - -if( UNIX ) - # On Unix-like systems, shared libraries can use the soname system. - set(GLFW_LIB_NAME glfw) -else() - set(GLFW_LIB_NAME glfw3) -endif() - -# Filter out warnings that cause problems with GLFW. -if( WARNINGS_AS_ERRORS AND (USING_GNU_CXX OR USING_CLANG_CXX)) - string( REPLACE "-Wdeclaration-after-statement" "" filtered_c_flags ${CMAKE_C_FLAGS} ) - string( REPLACE "-Wsign-compare" "" filtered_c_flags ${filtered_c_flags} ) - push_variable( CMAKE_C_FLAGS "${filtered_c_flags} -Wno-format-truncation -Wno-deprecated" ) -endif() -add_subdirectory( GLFW ) -set_property( TARGET glfw PROPERTY C_STANDARD 99 ) -if( WARNINGS_AS_ERRORS AND (USING_GNU_CXX OR USING_CLANG_CXX)) - pop_variable( CMAKE_C_FLAGS ) -endif() - -if( WARNINGS_AS_ERRORS AND (USING_GNU_CXX OR USING_CLANG_CXX)) - push_variable( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-class-memaccess" ) -endif() -add_subdirectory( imgui ) -if( WARNINGS_AS_ERRORS AND (USING_GNU_CXX OR USING_CLANG_CXX)) - pop_variable( CMAKE_CXX_FLAGS ) -endif() - -add_library( glad SHARED - KHR/khrplatform.h - glad/glad.c - glad/glad.h -) -target_compile_definitions( glad - PRIVATE GLAD_GLAPI_EXPORT_BUILD - PUBLIC GLAD_GLAPI_EXPORT ) -target_include_directories( glad PUBLIC . ) -target_link_libraries( glad PUBLIC ${OPENGL_LIBRARIES} ) - - -# Set IDE folders for targets -set_property( TARGET glad PROPERTY FOLDER ${OPTIX_IDE_FOLDER} ) -set_property( TARGET glfw PROPERTY FOLDER ${OPTIX_IDE_FOLDER} ) -set_property( TARGET imgui PROPERTY FOLDER ${OPTIX_IDE_FOLDER} ) diff --git a/zenovis/xinxinoptix/SDK/support/tinyexr/tinyexr.h b/zenovis/xinxinoptix/SDK/support/tinyexr/tinyexr.h deleted file mode 100644 index 20adfeffbb..0000000000 --- a/zenovis/xinxinoptix/SDK/support/tinyexr/tinyexr.h +++ /dev/null @@ -1,13315 +0,0 @@ -/* -Copyright (c) 2014 - 2019, Syoyo Fujita and many contributors. -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Syoyo Fujita nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY -DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -// TinyEXR contains some OpenEXR code, which is licensed under ------------ - -/////////////////////////////////////////////////////////////////////////// -// -// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas -// Digital Ltd. LLC -// -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Industrial Light & Magic nor the names of -// its contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -/////////////////////////////////////////////////////////////////////////// - -// End of OpenEXR license ------------------------------------------------- - -#ifndef TINYEXR_H_ -#define TINYEXR_H_ - -// -// -// Do this: -// #define TINYEXR_IMPLEMENTATION -// before you include this file in *one* C or C++ file to create the -// implementation. -// -// // i.e. it should look like this: -// #include ... -// #include ... -// #include ... -// #define TINYEXR_IMPLEMENTATION -// #include "tinyexr.h" -// -// - -#include // for size_t -#include // guess stdint.h is available(C99) - -#ifdef __cplusplus -extern "C" { -#endif - -// Use embedded miniz or not to decode ZIP format pixel. Linking with zlib -// required if this flas is 0. -#ifndef TINYEXR_USE_MINIZ -#define TINYEXR_USE_MINIZ (1) -#endif - -// Disable PIZ comporession when applying cpplint. -#ifndef TINYEXR_USE_PIZ -#define TINYEXR_USE_PIZ (1) -#endif - -#ifndef TINYEXR_USE_ZFP -#define TINYEXR_USE_ZFP (0) // TinyEXR extension. -// http://computation.llnl.gov/projects/floating-point-compression -#endif - -#define TINYEXR_SUCCESS (0) -#define TINYEXR_ERROR_INVALID_MAGIC_NUMBER (-1) -#define TINYEXR_ERROR_INVALID_EXR_VERSION (-2) -#define TINYEXR_ERROR_INVALID_ARGUMENT (-3) -#define TINYEXR_ERROR_INVALID_DATA (-4) -#define TINYEXR_ERROR_INVALID_FILE (-5) -#define TINYEXR_ERROR_INVALID_PARAMETER (-6) -#define TINYEXR_ERROR_CANT_OPEN_FILE (-7) -#define TINYEXR_ERROR_UNSUPPORTED_FORMAT (-8) -#define TINYEXR_ERROR_INVALID_HEADER (-9) -#define TINYEXR_ERROR_UNSUPPORTED_FEATURE (-10) -#define TINYEXR_ERROR_CANT_WRITE_FILE (-11) -#define TINYEXR_ERROR_SERIALZATION_FAILED (-12) - -// @note { OpenEXR file format: http://www.openexr.com/openexrfilelayout.pdf } - -// pixel type: possible values are: UINT = 0 HALF = 1 FLOAT = 2 -#define TINYEXR_PIXELTYPE_UINT (0) -#define TINYEXR_PIXELTYPE_HALF (1) -#define TINYEXR_PIXELTYPE_FLOAT (2) - -#define TINYEXR_MAX_HEADER_ATTRIBUTES (1024) -#define TINYEXR_MAX_CUSTOM_ATTRIBUTES (128) - -#define TINYEXR_COMPRESSIONTYPE_NONE (0) -#define TINYEXR_COMPRESSIONTYPE_RLE (1) -#define TINYEXR_COMPRESSIONTYPE_ZIPS (2) -#define TINYEXR_COMPRESSIONTYPE_ZIP (3) -#define TINYEXR_COMPRESSIONTYPE_PIZ (4) -#define TINYEXR_COMPRESSIONTYPE_ZFP (128) // TinyEXR extension - -#define TINYEXR_ZFP_COMPRESSIONTYPE_RATE (0) -#define TINYEXR_ZFP_COMPRESSIONTYPE_PRECISION (1) -#define TINYEXR_ZFP_COMPRESSIONTYPE_ACCURACY (2) - -#define TINYEXR_TILE_ONE_LEVEL (0) -#define TINYEXR_TILE_MIPMAP_LEVELS (1) -#define TINYEXR_TILE_RIPMAP_LEVELS (2) - -#define TINYEXR_TILE_ROUND_DOWN (0) -#define TINYEXR_TILE_ROUND_UP (1) - -typedef struct _EXRVersion { - int version; // this must be 2 - int tiled; // tile format image - int long_name; // long name attribute - int non_image; // deep image(EXR 2.0) - int multipart; // multi-part(EXR 2.0) -} EXRVersion; - -typedef struct _EXRAttribute { - char name[256]; // name and type are up to 255 chars long. - char type[256]; - unsigned char *value; // uint8_t* - int size; - int pad0; -} EXRAttribute; - -typedef struct _EXRChannelInfo { - char name[256]; // less than 255 bytes long - int pixel_type; - int x_sampling; - int y_sampling; - unsigned char p_linear; - unsigned char pad[3]; -} EXRChannelInfo; - -typedef struct _EXRTile { - int offset_x; - int offset_y; - int level_x; - int level_y; - - int width; // actual width in a tile. - int height; // actual height int a tile. - - unsigned char **images; // image[channels][pixels] -} EXRTile; - -typedef struct _EXRHeader { - float pixel_aspect_ratio; - int line_order; - int data_window[4]; - int display_window[4]; - float screen_window_center[2]; - float screen_window_width; - - int chunk_count; - - // Properties for tiled format(`tiledesc`). - int tiled; - int tile_size_x; - int tile_size_y; - int tile_level_mode; - int tile_rounding_mode; - - int long_name; - int non_image; - int multipart; - unsigned int header_len; - - // Custom attributes(exludes required attributes(e.g. `channels`, - // `compression`, etc) - int num_custom_attributes; - EXRAttribute *custom_attributes; // array of EXRAttribute. size = - // `num_custom_attributes`. - - EXRChannelInfo *channels; // [num_channels] - - int *pixel_types; // Loaded pixel type(TINYEXR_PIXELTYPE_*) of `images` for - // each channel. This is overwritten with `requested_pixel_types` when - // loading. - int num_channels; - - int compression_type; // compression type(TINYEXR_COMPRESSIONTYPE_*) - int *requested_pixel_types; // Filled initially by - // ParseEXRHeaderFrom(Meomory|File), then users - // can edit it(only valid for HALF pixel type - // channel) - -} EXRHeader; - -typedef struct _EXRMultiPartHeader { - int num_headers; - EXRHeader *headers; - -} EXRMultiPartHeader; - -typedef struct _EXRImage { - EXRTile *tiles; // Tiled pixel data. The application must reconstruct image - // from tiles manually. NULL if scanline format. - unsigned char **images; // image[channels][pixels]. NULL if tiled format. - - int width; - int height; - int num_channels; - - // Properties for tile format. - int num_tiles; - -} EXRImage; - -typedef struct _EXRMultiPartImage { - int num_images; - EXRImage *images; - -} EXRMultiPartImage; - -typedef struct _DeepImage { - const char **channel_names; - float ***image; // image[channels][scanlines][samples] - int **offset_table; // offset_table[scanline][offsets] - int num_channels; - int width; - int height; - int pad0; -} DeepImage; - -// @deprecated { to be removed. } -// Loads single-frame OpenEXR image. Assume EXR image contains A(single channel -// alpha) or RGB(A) channels. -// Application must free image data as returned by `out_rgba` -// Result image format is: float x RGBA x width x hight -// Returns negative value and may set error string in `err` when there's an -// error -extern int LoadEXR(float **out_rgba, int *width, int *height, - const char *filename, const char **err); - -// @deprecated { to be removed. } -// Simple wrapper API for ParseEXRHeaderFromFile. -// checking given file is a EXR file(by just look up header) -// @return TINYEXR_SUCCEES for EXR image, TINYEXR_ERROR_INVALID_HEADER for -// others -extern int IsEXR(const char *filename); - -// @deprecated { to be removed. } -// Saves single-frame OpenEXR image. Assume EXR image contains RGB(A) channels. -// components must be 1(Grayscale), 3(RGB) or 4(RGBA). -// Input image format is: `float x width x height`, or `float x RGB(A) x width x -// hight` -// Save image as fp16(HALF) format when `save_as_fp16` is positive non-zero -// value. -// Save image as fp32(FLOAT) format when `save_as_fp16` is 0. -// Use ZIP compression by default. -// Returns negative value and may set error string in `err` when there's an -// error -extern int SaveEXR(const float *data, const int width, const int height, - const int components, const int save_as_fp16, - const char *filename, const char **err); - -// Initialize EXRHeader struct -extern void InitEXRHeader(EXRHeader *exr_header); - -// Initialize EXRImage struct -extern void InitEXRImage(EXRImage *exr_image); - -// Free's internal data of EXRHeader struct -extern int FreeEXRHeader(EXRHeader *exr_header); - -// Free's internal data of EXRImage struct -extern int FreeEXRImage(EXRImage *exr_image); - -// Free's error message -extern void FreeEXRErrorMessage(const char *msg); - -// Parse EXR version header of a file. -extern int ParseEXRVersionFromFile(EXRVersion *version, const char *filename); - -// Parse EXR version header from memory-mapped EXR data. -extern int ParseEXRVersionFromMemory(EXRVersion *version, - const unsigned char *memory, size_t size); - -// Parse single-part OpenEXR header from a file and initialize `EXRHeader`. -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int ParseEXRHeaderFromFile(EXRHeader *header, const EXRVersion *version, - const char *filename, const char **err); - -// Parse single-part OpenEXR header from a memory and initialize `EXRHeader`. -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int ParseEXRHeaderFromMemory(EXRHeader *header, - const EXRVersion *version, - const unsigned char *memory, size_t size, - const char **err); - -// Parse multi-part OpenEXR headers from a file and initialize `EXRHeader*` -// array. -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int ParseEXRMultipartHeaderFromFile(EXRHeader ***headers, - int *num_headers, - const EXRVersion *version, - const char *filename, - const char **err); - -// Parse multi-part OpenEXR headers from a memory and initialize `EXRHeader*` -// array -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int ParseEXRMultipartHeaderFromMemory(EXRHeader ***headers, - int *num_headers, - const EXRVersion *version, - const unsigned char *memory, - size_t size, const char **err); - -// Loads single-part OpenEXR image from a file. -// Application must setup `ParseEXRHeaderFromFile` before calling this function. -// Application can free EXRImage using `FreeEXRImage` -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadEXRImageFromFile(EXRImage *image, const EXRHeader *header, - const char *filename, const char **err); - -// Loads single-part OpenEXR image from a memory. -// Application must setup `EXRHeader` with -// `ParseEXRHeaderFromMemory` before calling this function. -// Application can free EXRImage using `FreeEXRImage` -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadEXRImageFromMemory(EXRImage *image, const EXRHeader *header, - const unsigned char *memory, - const size_t size, const char **err); - -// Loads multi-part OpenEXR image from a file. -// Application must setup `ParseEXRMultipartHeaderFromFile` before calling this -// function. -// Application can free EXRImage using `FreeEXRImage` -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadEXRMultipartImageFromFile(EXRImage *images, - const EXRHeader **headers, - unsigned int num_parts, - const char *filename, - const char **err); - -// Loads multi-part OpenEXR image from a memory. -// Application must setup `EXRHeader*` array with -// `ParseEXRMultipartHeaderFromMemory` before calling this function. -// Application can free EXRImage using `FreeEXRImage` -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadEXRMultipartImageFromMemory(EXRImage *images, - const EXRHeader **headers, - unsigned int num_parts, - const unsigned char *memory, - const size_t size, const char **err); - -// Saves multi-channel, single-frame OpenEXR image to a file. -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int SaveEXRImageToFile(const EXRImage *image, - const EXRHeader *exr_header, const char *filename, - const char **err); - -// Saves multi-channel, single-frame OpenEXR image to a memory. -// Image is compressed using EXRImage.compression value. -// Return the number of bytes if success. -// Return zero and will set error string in `err` when there's an -// error. -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern size_t SaveEXRImageToMemory(const EXRImage *image, - const EXRHeader *exr_header, - unsigned char **memory, const char **err); - -// Loads single-frame OpenEXR deep image. -// Application must free memory of variables in DeepImage(image, offset_table) -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadDeepEXR(DeepImage *out_image, const char *filename, - const char **err); - -// NOT YET IMPLEMENTED: -// Saves single-frame OpenEXR deep image. -// Returns negative value and may set error string in `err` when there's an -// error -// extern int SaveDeepEXR(const DeepImage *in_image, const char *filename, -// const char **err); - -// NOT YET IMPLEMENTED: -// Loads multi-part OpenEXR deep image. -// Application must free memory of variables in DeepImage(image, offset_table) -// extern int LoadMultiPartDeepEXR(DeepImage **out_image, int num_parts, const -// char *filename, -// const char **err); - -// For emscripten. -// Loads single-frame OpenEXR image from memory. Assume EXR image contains -// RGB(A) channels. -// Returns negative value and may set error string in `err` when there's an -// error -// When there was an error message, Application must free `err` with -// FreeEXRErrorMessage() -extern int LoadEXRFromMemory(float **out_rgba, int *width, int *height, - const unsigned char *memory, size_t size, - const char **err); - -#ifdef __cplusplus -} -#endif - -#endif // TINYEXR_H_ - -#ifdef TINYEXR_IMPLEMENTATION -#ifndef TINYEXR_IMPLEMENTATION_DEIFNED -#define TINYEXR_IMPLEMENTATION_DEIFNED - -#include -#include -#include -#include -#include -#include - -//#include // debug - -#include -#include -#include - -#if __cplusplus > 199711L -// C++11 -#include -#endif // __cplusplus > 199711L - -#ifdef _OPENMP -#include -#endif - -#if TINYEXR_USE_MINIZ -#else -// Issue #46. Please include your own zlib-compatible API header before -// including `tinyexr.h` -//#include "zlib.h" -#endif - -#if TINYEXR_USE_ZFP -#include "zfp.h" -#endif - -namespace tinyexr { - -#if __cplusplus > 199711L -// C++11 -typedef uint64_t tinyexr_uint64; -typedef int64_t tinyexr_int64; -#else -// Although `long long` is not a standard type pre C++11, assume it is defined -// as a compiler's extension. -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wc++11-long-long" -#endif -typedef unsigned long long tinyexr_uint64; -typedef long long tinyexr_int64; -#ifdef __clang__ -#pragma clang diagnostic pop -#endif -#endif - -#if TINYEXR_USE_MINIZ - -namespace miniz { - -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wc++11-long-long" -#pragma clang diagnostic ignored "-Wold-style-cast" -#pragma clang diagnostic ignored "-Wpadded" -#pragma clang diagnostic ignored "-Wsign-conversion" -#pragma clang diagnostic ignored "-Wc++11-extensions" -#pragma clang diagnostic ignored "-Wconversion" -#pragma clang diagnostic ignored "-Wunused-function" -#pragma clang diagnostic ignored "-Wc++98-compat-pedantic" -#pragma clang diagnostic ignored "-Wundef" - -#if __has_warning("-Wcomma") -#pragma clang diagnostic ignored "-Wcomma" -#endif - -#if __has_warning("-Wmacro-redefined") -#pragma clang diagnostic ignored "-Wmacro-redefined" -#endif - -#if __has_warning("-Wcast-qual") -#pragma clang diagnostic ignored "-Wcast-qual" -#endif - -#if __has_warning("-Wzero-as-null-pointer-constant") -#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" -#endif - -#if __has_warning("-Wtautological-constant-compare") -#pragma clang diagnostic ignored "-Wtautological-constant-compare" -#endif - -#endif - -/* miniz.c v1.15 - public domain deflate/inflate, zlib-subset, ZIP - reading/writing/appending, PNG writing - See "unlicense" statement at the end of this file. - Rich Geldreich , last updated Oct. 13, 2013 - Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: - http://www.ietf.org/rfc/rfc1951.txt - - Most API's defined in miniz.c are optional. For example, to disable the - archive related functions just define - MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO - (see the list below for more macros). - - * Change History - 10/13/13 v1.15 r4 - Interim bugfix release while I work on the next major - release with Zip64 support (almost there!): - - Critical fix for the MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY bug - (thanks kahmyong.moon@hp.com) which could cause locate files to not find - files. This bug - would only have occured in earlier versions if you explicitly used this - flag, OR if you used mz_zip_extract_archive_file_to_heap() or - mz_zip_add_mem_to_archive_file_in_place() - (which used this flag). If you can't switch to v1.15 but want to fix - this bug, just remove the uses of this flag from both helper funcs (and of - course don't use the flag). - - Bugfix in mz_zip_reader_extract_to_mem_no_alloc() from kymoon when - pUser_read_buf is not NULL and compressed size is > uncompressed size - - Fixing mz_zip_reader_extract_*() funcs so they don't try to extract - compressed data from directory entries, to account for weird zipfiles which - contain zero-size compressed data on dir entries. - Hopefully this fix won't cause any issues on weird zip archives, - because it assumes the low 16-bits of zip external attributes are DOS - attributes (which I believe they always are in practice). - - Fixing mz_zip_reader_is_file_a_directory() so it doesn't check the - internal attributes, just the filename and external attributes - - mz_zip_reader_init_file() - missing MZ_FCLOSE() call if the seek failed - - Added cmake support for Linux builds which builds all the examples, - tested with clang v3.3 and gcc v4.6. - - Clang fix for tdefl_write_image_to_png_file_in_memory() from toffaletti - - Merged MZ_FORCEINLINE fix from hdeanclark - - Fix include before config #ifdef, thanks emil.brink - - Added tdefl_write_image_to_png_file_in_memory_ex(): supports Y flipping - (super useful for OpenGL apps), and explicit control over the compression - level (so you can - set it to 1 for real-time compression). - - Merged in some compiler fixes from paulharris's github repro. - - Retested this build under Windows (VS 2010, including static analysis), - tcc 0.9.26, gcc v4.6 and clang v3.3. - - Added example6.c, which dumps an image of the mandelbrot set to a PNG - file. - - Modified example2 to help test the - MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY flag more. - - In r3: Bugfix to mz_zip_writer_add_file() found during merge: Fix - possible src file fclose() leak if alignment bytes+local header file write - faiiled - - In r4: Minor bugfix to mz_zip_writer_add_from_zip_reader(): - Was pushing the wrong central dir header offset, appears harmless in this - release, but it became a problem in the zip64 branch - 5/20/12 v1.14 - MinGW32/64 GCC 4.6.1 compiler fixes: added MZ_FORCEINLINE, - #include (thanks fermtect). - 5/19/12 v1.13 - From jason@cornsyrup.org and kelwert@mtu.edu - Fix - mz_crc32() so it doesn't compute the wrong CRC-32's when mz_ulong is 64-bit. - - Temporarily/locally slammed in "typedef unsigned long mz_ulong" and - re-ran a randomized regression test on ~500k files. - - Eliminated a bunch of warnings when compiling with GCC 32-bit/64. - - Ran all examples, miniz.c, and tinfl.c through MSVC 2008's /analyze - (static analysis) option and fixed all warnings (except for the silly - "Use of the comma-operator in a tested expression.." analysis warning, - which I purposely use to work around a MSVC compiler warning). - - Created 32-bit and 64-bit Codeblocks projects/workspace. Built and - tested Linux executables. The codeblocks workspace is compatible with - Linux+Win32/x64. - - Added miniz_tester solution/project, which is a useful little app - derived from LZHAM's tester app that I use as part of the regression test. - - Ran miniz.c and tinfl.c through another series of regression testing on - ~500,000 files and archives. - - Modified example5.c so it purposely disables a bunch of high-level - functionality (MINIZ_NO_STDIO, etc.). (Thanks to corysama for the - MINIZ_NO_STDIO bug report.) - - Fix ftell() usage in examples so they exit with an error on files which - are too large (a limitation of the examples, not miniz itself). - 4/12/12 v1.12 - More comments, added low-level example5.c, fixed a couple - minor level_and_flags issues in the archive API's. - level_and_flags can now be set to MZ_DEFAULT_COMPRESSION. Thanks to Bruce - Dawson for the feedback/bug report. - 5/28/11 v1.11 - Added statement from unlicense.org - 5/27/11 v1.10 - Substantial compressor optimizations: - - Level 1 is now ~4x faster than before. The L1 compressor's throughput - now varies between 70-110MB/sec. on a - - Core i7 (actual throughput varies depending on the type of data, and x64 - vs. x86). - - Improved baseline L2-L9 compression perf. Also, greatly improved - compression perf. issues on some file types. - - Refactored the compression code for better readability and - maintainability. - - Added level 10 compression level (L10 has slightly better ratio than - level 9, but could have a potentially large - drop in throughput on some files). - 5/15/11 v1.09 - Initial stable release. - - * Low-level Deflate/Inflate implementation notes: - - Compression: Use the "tdefl" API's. The compressor supports raw, static, - and dynamic blocks, lazy or - greedy parsing, match length filtering, RLE-only, and Huffman-only streams. - It performs and compresses - approximately as well as zlib. - - Decompression: Use the "tinfl" API's. The entire decompressor is - implemented as a single function - coroutine: see tinfl_decompress(). It supports decompression into a 32KB - (or larger power of 2) wrapping buffer, or into a memory - block large enough to hold the entire file. - - The low-level tdefl/tinfl API's do not make any use of dynamic memory - allocation. - - * zlib-style API notes: - - miniz.c implements a fairly large subset of zlib. There's enough - functionality present for it to be a drop-in - zlib replacement in many apps: - The z_stream struct, optional memory allocation callbacks - deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound - inflateInit/inflateInit2/inflate/inflateEnd - compress, compress2, compressBound, uncompress - CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly - routines. - Supports raw deflate streams or standard zlib streams with adler-32 - checking. - - Limitations: - The callback API's are not implemented yet. No support for gzip headers or - zlib static dictionaries. - I've tried to closely emulate zlib's various flavors of stream flushing - and return status codes, but - there are no guarantees that miniz.c pulls this off perfectly. - - * PNG writing: See the tdefl_write_image_to_png_file_in_memory() function, - originally written by - Alex Evans. Supports 1-4 bytes/pixel images. - - * ZIP archive API notes: - - The ZIP archive API's where designed with simplicity and efficiency in - mind, with just enough abstraction to - get the job done with minimal fuss. There are simple API's to retrieve file - information, read files from - existing archives, create new archives, append new files to existing - archives, or clone archive data from - one archive to another. It supports archives located in memory or the heap, - on disk (using stdio.h), - or you can specify custom file read/write callbacks. - - - Archive reading: Just call this function to read a single file from a - disk archive: - - void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const - char *pArchive_name, - size_t *pSize, mz_uint zip_flags); - - For more complex cases, use the "mz_zip_reader" functions. Upon opening an - archive, the entire central - directory is located and read as-is into memory, and subsequent file access - only occurs when reading individual files. - - - Archives file scanning: The simple way is to use this function to scan a - loaded archive for a specific file: - - int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, - const char *pComment, mz_uint flags); - - The locate operation can optionally check file comments too, which (as one - example) can be used to identify - multiple versions of the same file in an archive. This function uses a - simple linear search through the central - directory, so it's not very fast. - - Alternately, you can iterate through all the files in an archive (using - mz_zip_reader_get_num_files()) and - retrieve detailed info on each file by calling mz_zip_reader_file_stat(). - - - Archive creation: Use the "mz_zip_writer" functions. The ZIP writer - immediately writes compressed file data - to disk and builds an exact image of the central directory in memory. The - central directory image is written - all at once at the end of the archive file when the archive is finalized. - - The archive writer can optionally align each file's local header and file - data to any power of 2 alignment, - which can be useful when the archive will be read from optical media. Also, - the writer supports placing - arbitrary data blobs at the very beginning of ZIP archives. Archives - written using either feature are still - readable by any ZIP tool. - - - Archive appending: The simple way to add a single file to an archive is - to call this function: - - mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, - const char *pArchive_name, - const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 - comment_size, mz_uint level_and_flags); - - The archive will be created if it doesn't already exist, otherwise it'll be - appended to. - Note the appending is done in-place and is not an atomic operation, so if - something goes wrong - during the operation it's possible the archive could be left without a - central directory (although the local - file headers and file data will be fine, so the archive will be - recoverable). - - For more complex archive modification scenarios: - 1. The safest way is to use a mz_zip_reader to read the existing archive, - cloning only those bits you want to - preserve into a new archive using using the - mz_zip_writer_add_from_zip_reader() function (which compiles the - compressed file data as-is). When you're done, delete the old archive and - rename the newly written archive, and - you're done. This is safe but requires a bunch of temporary disk space or - heap memory. - - 2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using - mz_zip_writer_init_from_reader(), - append new files as needed, then finalize the archive which will write an - updated central directory to the - original archive. (This is basically what - mz_zip_add_mem_to_archive_file_in_place() does.) There's a - possibility that the archive's central directory could be lost with this - method if anything goes wrong, though. - - - ZIP archive support limitations: - No zip64 or spanning support. Extraction functions can only handle - unencrypted, stored or deflated files. - Requires streams capable of seeking. - - * This is a header file library, like stb_image.c. To get only a header file, - either cut and paste the - below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then - include miniz.c from it. - - * Important: For best perf. be sure to customize the below macros for your - target platform: - #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 - #define MINIZ_LITTLE_ENDIAN 1 - #define MINIZ_HAS_64BIT_REGISTERS 1 - - * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before - including miniz.c to ensure miniz - uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be - able to process large files - (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes). -*/ - -#ifndef MINIZ_HEADER_INCLUDED -#define MINIZ_HEADER_INCLUDED - -//#include - -// Defines to completely disable specific portions of miniz.c: -// If all macros here are defined the only functionality remaining will be -// CRC-32, adler-32, tinfl, and tdefl. - -// Define MINIZ_NO_STDIO to disable all usage and any functions which rely on -// stdio for file I/O. -//#define MINIZ_NO_STDIO - -// If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able -// to get the current time, or -// get/set file times, and the C run-time funcs that get/set times won't be -// called. -// The current downside is the times written to your archives will be from 1979. -#define MINIZ_NO_TIME - -// Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. -#define MINIZ_NO_ARCHIVE_APIS - -// Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive -// API's. -//#define MINIZ_NO_ARCHIVE_WRITING_APIS - -// Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression -// API's. -//#define MINIZ_NO_ZLIB_APIS - -// Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent -// conflicts against stock zlib. -//#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES - -// Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc. -// Note if MINIZ_NO_MALLOC is defined then the user must always provide custom -// user alloc/free/realloc -// callbacks to the zlib and archive API's, and a few stand-alone helper API's -// which don't provide custom user -// functions (such as tdefl_compress_mem_to_heap() and -// tinfl_decompress_mem_to_heap()) won't work. -//#define MINIZ_NO_MALLOC - -#if defined(__TINYC__) && (defined(__linux) || defined(__linux__)) -// TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc -// on Linux -#define MINIZ_NO_TIME -#endif - -#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS) -//#include -#endif - -#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || \ - defined(__i386) || defined(__i486__) || defined(__i486) || \ - defined(i386) || defined(__ia64__) || defined(__x86_64__) -// MINIZ_X86_OR_X64_CPU is only used to help set the below macros. -#define MINIZ_X86_OR_X64_CPU 1 -#endif - -#if defined(__sparcv9) -// Big endian -#else -#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU -// Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. -#define MINIZ_LITTLE_ENDIAN 1 -#endif -#endif - -#if MINIZ_X86_OR_X64_CPU -// Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient -// integer loads and stores from unaligned addresses. -//#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 -#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES \ - 0 // disable to suppress compiler warnings -#endif - -#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || \ - defined(_LP64) || defined(__LP64__) || defined(__ia64__) || \ - defined(__x86_64__) -// Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are -// reasonably fast (and don't involve compiler generated calls to helper -// functions). -#define MINIZ_HAS_64BIT_REGISTERS 1 -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -// ------------------- zlib-style API Definitions. - -// For more compatibility with zlib, miniz.c uses unsigned long for some -// parameters/struct members. Beware: mz_ulong can be either 32 or 64-bits! -typedef unsigned long mz_ulong; - -// mz_free() internally uses the MZ_FREE() macro (which by default calls free() -// unless you've modified the MZ_MALLOC macro) to release a block allocated from -// the heap. -void mz_free(void *p); - -#define MZ_ADLER32_INIT (1) -// mz_adler32() returns the initial adler-32 value to use when called with -// ptr==NULL. -mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len); - -#define MZ_CRC32_INIT (0) -// mz_crc32() returns the initial CRC-32 value to use when called with -// ptr==NULL. -mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len); - -// Compression strategies. -enum { - MZ_DEFAULT_STRATEGY = 0, - MZ_FILTERED = 1, - MZ_HUFFMAN_ONLY = 2, - MZ_RLE = 3, - MZ_FIXED = 4 -}; - -// Method -#define MZ_DEFLATED 8 - -#ifndef MINIZ_NO_ZLIB_APIS - -// Heap allocation callbacks. -// Note that mz_alloc_func parameter types purpsosely differ from zlib's: -// items/size is size_t, not unsigned long. -typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size); -typedef void (*mz_free_func)(void *opaque, void *address); -typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, - size_t size); - -#define MZ_VERSION "9.1.15" -#define MZ_VERNUM 0x91F0 -#define MZ_VER_MAJOR 9 -#define MZ_VER_MINOR 1 -#define MZ_VER_REVISION 15 -#define MZ_VER_SUBREVISION 0 - -// Flush values. For typical usage you only need MZ_NO_FLUSH and MZ_FINISH. The -// other values are for advanced use (refer to the zlib docs). -enum { - MZ_NO_FLUSH = 0, - MZ_PARTIAL_FLUSH = 1, - MZ_SYNC_FLUSH = 2, - MZ_FULL_FLUSH = 3, - MZ_FINISH = 4, - MZ_BLOCK = 5 -}; - -// Return status codes. MZ_PARAM_ERROR is non-standard. -enum { - MZ_OK = 0, - MZ_STREAM_END = 1, - MZ_NEED_DICT = 2, - MZ_ERRNO = -1, - MZ_STREAM_ERROR = -2, - MZ_DATA_ERROR = -3, - MZ_MEM_ERROR = -4, - MZ_BUF_ERROR = -5, - MZ_VERSION_ERROR = -6, - MZ_PARAM_ERROR = -10000 -}; - -// Compression levels: 0-9 are the standard zlib-style levels, 10 is best -// possible compression (not zlib compatible, and may be very slow), -// MZ_DEFAULT_COMPRESSION=MZ_DEFAULT_LEVEL. -enum { - MZ_NO_COMPRESSION = 0, - MZ_BEST_SPEED = 1, - MZ_BEST_COMPRESSION = 9, - MZ_UBER_COMPRESSION = 10, - MZ_DEFAULT_LEVEL = 6, - MZ_DEFAULT_COMPRESSION = -1 -}; - -// Window bits -#define MZ_DEFAULT_WINDOW_BITS 15 - -struct mz_internal_state; - -// Compression/decompression stream struct. -typedef struct mz_stream_s { - const unsigned char *next_in; // pointer to next byte to read - unsigned int avail_in; // number of bytes available at next_in - mz_ulong total_in; // total number of bytes consumed so far - - unsigned char *next_out; // pointer to next byte to write - unsigned int avail_out; // number of bytes that can be written to next_out - mz_ulong total_out; // total number of bytes produced so far - - char *msg; // error msg (unused) - struct mz_internal_state *state; // internal state, allocated by zalloc/zfree - - mz_alloc_func - zalloc; // optional heap allocation function (defaults to malloc) - mz_free_func zfree; // optional heap free function (defaults to free) - void *opaque; // heap alloc function user pointer - - int data_type; // data_type (unused) - mz_ulong adler; // adler32 of the source or uncompressed data - mz_ulong reserved; // not used -} mz_stream; - -typedef mz_stream *mz_streamp; - -// Returns the version string of miniz.c. -const char *mz_version(void); - -// mz_deflateInit() initializes a compressor with default options: -// Parameters: -// pStream must point to an initialized mz_stream struct. -// level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. -// level 1 enables a specially optimized compression function that's been -// optimized purely for performance, not ratio. -// (This special func. is currently only enabled when -// MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.) -// Return values: -// MZ_OK on success. -// MZ_STREAM_ERROR if the stream is bogus. -// MZ_PARAM_ERROR if the input parameters are bogus. -// MZ_MEM_ERROR on out of memory. -int mz_deflateInit(mz_streamp pStream, int level); - -// mz_deflateInit2() is like mz_deflate(), except with more control: -// Additional parameters: -// method must be MZ_DEFLATED -// window_bits must be MZ_DEFAULT_WINDOW_BITS (to wrap the deflate stream with -// zlib header/adler-32 footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate/no -// header or footer) -// mem_level must be between [1, 9] (it's checked but ignored by miniz.c) -int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, - int mem_level, int strategy); - -// Quickly resets a compressor without having to reallocate anything. Same as -// calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2(). -int mz_deflateReset(mz_streamp pStream); - -// mz_deflate() compresses the input to output, consuming as much of the input -// and producing as much output as possible. -// Parameters: -// pStream is the stream to read from and write to. You must initialize/update -// the next_in, avail_in, next_out, and avail_out members. -// flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or -// MZ_FINISH. -// Return values: -// MZ_OK on success (when flushing, or if more input is needed but not -// available, and/or there's more output to be written but the output buffer -// is full). -// MZ_STREAM_END if all input has been consumed and all output bytes have been -// written. Don't call mz_deflate() on the stream anymore. -// MZ_STREAM_ERROR if the stream is bogus. -// MZ_PARAM_ERROR if one of the parameters is invalid. -// MZ_BUF_ERROR if no forward progress is possible because the input and/or -// output buffers are empty. (Fill up the input buffer or free up some output -// space and try again.) -int mz_deflate(mz_streamp pStream, int flush); - -// mz_deflateEnd() deinitializes a compressor: -// Return values: -// MZ_OK on success. -// MZ_STREAM_ERROR if the stream is bogus. -int mz_deflateEnd(mz_streamp pStream); - -// mz_deflateBound() returns a (very) conservative upper bound on the amount of -// data that could be generated by deflate(), assuming flush is set to only -// MZ_NO_FLUSH or MZ_FINISH. -mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len); - -// Single-call compression functions mz_compress() and mz_compress2(): -// Returns MZ_OK on success, or one of the error codes from mz_deflate() on -// failure. -int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len); -int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len, int level); - -// mz_compressBound() returns a (very) conservative upper bound on the amount of -// data that could be generated by calling mz_compress(). -mz_ulong mz_compressBound(mz_ulong source_len); - -// Initializes a decompressor. -int mz_inflateInit(mz_streamp pStream); - -// mz_inflateInit2() is like mz_inflateInit() with an additional option that -// controls the window size and whether or not the stream has been wrapped with -// a zlib header/footer: -// window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -// -MZ_DEFAULT_WINDOW_BITS (raw deflate). -int mz_inflateInit2(mz_streamp pStream, int window_bits); - -// Decompresses the input stream to the output, consuming only as much of the -// input as needed, and writing as much to the output as possible. -// Parameters: -// pStream is the stream to read from and write to. You must initialize/update -// the next_in, avail_in, next_out, and avail_out members. -// flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. -// On the first call, if flush is MZ_FINISH it's assumed the input and output -// buffers are both sized large enough to decompress the entire stream in a -// single call (this is slightly faster). -// MZ_FINISH implies that there are no more source bytes available beside -// what's already in the input buffer, and that the output buffer is large -// enough to hold the rest of the decompressed data. -// Return values: -// MZ_OK on success. Either more input is needed but not available, and/or -// there's more output to be written but the output buffer is full. -// MZ_STREAM_END if all needed input has been consumed and all output bytes -// have been written. For zlib streams, the adler-32 of the decompressed data -// has also been verified. -// MZ_STREAM_ERROR if the stream is bogus. -// MZ_DATA_ERROR if the deflate stream is invalid. -// MZ_PARAM_ERROR if one of the parameters is invalid. -// MZ_BUF_ERROR if no forward progress is possible because the input buffer is -// empty but the inflater needs more input to continue, or if the output -// buffer is not large enough. Call mz_inflate() again -// with more input data, or with more room in the output buffer (except when -// using single call decompression, described above). -int mz_inflate(mz_streamp pStream, int flush); - -// Deinitializes a decompressor. -int mz_inflateEnd(mz_streamp pStream); - -// Single-call decompression. -// Returns MZ_OK on success, or one of the error codes from mz_inflate() on -// failure. -int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len); - -// Returns a string description of the specified error code, or NULL if the -// error code is invalid. -const char *mz_error(int err); - -// Redefine zlib-compatible names to miniz equivalents, so miniz.c can be used -// as a drop-in replacement for the subset of zlib that miniz.c supports. -// Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you -// use zlib in the same project. -#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES -typedef unsigned char Byte; -typedef unsigned int uInt; -typedef mz_ulong uLong; -typedef Byte Bytef; -typedef uInt uIntf; -typedef char charf; -typedef int intf; -typedef void *voidpf; -typedef uLong uLongf; -typedef void *voidp; -typedef void *const voidpc; -#define Z_NULL 0 -#define Z_NO_FLUSH MZ_NO_FLUSH -#define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH -#define Z_SYNC_FLUSH MZ_SYNC_FLUSH -#define Z_FULL_FLUSH MZ_FULL_FLUSH -#define Z_FINISH MZ_FINISH -#define Z_BLOCK MZ_BLOCK -#define Z_OK MZ_OK -#define Z_STREAM_END MZ_STREAM_END -#define Z_NEED_DICT MZ_NEED_DICT -#define Z_ERRNO MZ_ERRNO -#define Z_STREAM_ERROR MZ_STREAM_ERROR -#define Z_DATA_ERROR MZ_DATA_ERROR -#define Z_MEM_ERROR MZ_MEM_ERROR -#define Z_BUF_ERROR MZ_BUF_ERROR -#define Z_VERSION_ERROR MZ_VERSION_ERROR -#define Z_PARAM_ERROR MZ_PARAM_ERROR -#define Z_NO_COMPRESSION MZ_NO_COMPRESSION -#define Z_BEST_SPEED MZ_BEST_SPEED -#define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION -#define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION -#define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY -#define Z_FILTERED MZ_FILTERED -#define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY -#define Z_RLE MZ_RLE -#define Z_FIXED MZ_FIXED -#define Z_DEFLATED MZ_DEFLATED -#define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS -#define alloc_func mz_alloc_func -#define free_func mz_free_func -#define internal_state mz_internal_state -#define z_stream mz_stream -#define deflateInit mz_deflateInit -#define deflateInit2 mz_deflateInit2 -#define deflateReset mz_deflateReset -#define deflate mz_deflate -#define deflateEnd mz_deflateEnd -#define deflateBound mz_deflateBound -#define compress mz_compress -#define compress2 mz_compress2 -#define compressBound mz_compressBound -#define inflateInit mz_inflateInit -#define inflateInit2 mz_inflateInit2 -#define inflate mz_inflate -#define inflateEnd mz_inflateEnd -#define uncompress mz_uncompress -#define crc32 mz_crc32 -#define adler32 mz_adler32 -#define MAX_WBITS 15 -#define MAX_MEM_LEVEL 9 -#define zError mz_error -#define ZLIB_VERSION MZ_VERSION -#define ZLIB_VERNUM MZ_VERNUM -#define ZLIB_VER_MAJOR MZ_VER_MAJOR -#define ZLIB_VER_MINOR MZ_VER_MINOR -#define ZLIB_VER_REVISION MZ_VER_REVISION -#define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION -#define zlibVersion mz_version -#define zlib_version mz_version() -#endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES - -#endif // MINIZ_NO_ZLIB_APIS - -// ------------------- Types and macros - -typedef unsigned char mz_uint8; -typedef signed short mz_int16; -typedef unsigned short mz_uint16; -typedef unsigned int mz_uint32; -typedef unsigned int mz_uint; -typedef long long mz_int64; -typedef unsigned long long mz_uint64; -typedef int mz_bool; - -#define MZ_FALSE (0) -#define MZ_TRUE (1) - -// An attempt to work around MSVC's spammy "warning C4127: conditional -// expression is constant" message. -#ifdef _MSC_VER -#define MZ_MACRO_END while (0, 0) -#else -#define MZ_MACRO_END while (0) -#endif - -// ------------------- ZIP archive reading/writing - -#ifndef MINIZ_NO_ARCHIVE_APIS - -enum { - MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024, - MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260, - MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256 -}; - -typedef struct { - mz_uint32 m_file_index; - mz_uint32 m_central_dir_ofs; - mz_uint16 m_version_made_by; - mz_uint16 m_version_needed; - mz_uint16 m_bit_flag; - mz_uint16 m_method; -#ifndef MINIZ_NO_TIME - time_t m_time; -#endif - mz_uint32 m_crc32; - mz_uint64 m_comp_size; - mz_uint64 m_uncomp_size; - mz_uint16 m_internal_attr; - mz_uint32 m_external_attr; - mz_uint64 m_local_header_ofs; - mz_uint32 m_comment_size; - char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE]; - char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE]; -} mz_zip_archive_file_stat; - -typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, - void *pBuf, size_t n); -typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, - const void *pBuf, size_t n); - -struct mz_zip_internal_state_tag; -typedef struct mz_zip_internal_state_tag mz_zip_internal_state; - -typedef enum { - MZ_ZIP_MODE_INVALID = 0, - MZ_ZIP_MODE_READING = 1, - MZ_ZIP_MODE_WRITING = 2, - MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3 -} mz_zip_mode; - -typedef struct mz_zip_archive_tag { - mz_uint64 m_archive_size; - mz_uint64 m_central_directory_file_ofs; - mz_uint m_total_files; - mz_zip_mode m_zip_mode; - - mz_uint m_file_offset_alignment; - - mz_alloc_func m_pAlloc; - mz_free_func m_pFree; - mz_realloc_func m_pRealloc; - void *m_pAlloc_opaque; - - mz_file_read_func m_pRead; - mz_file_write_func m_pWrite; - void *m_pIO_opaque; - - mz_zip_internal_state *m_pState; - -} mz_zip_archive; - -typedef enum { - MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100, - MZ_ZIP_FLAG_IGNORE_PATH = 0x0200, - MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400, - MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800 -} mz_zip_flags; - -// ZIP archive reading - -// Inits a ZIP archive reader. -// These functions read and validate the archive's central directory. -mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, - mz_uint32 flags); -mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, - size_t size, mz_uint32 flags); - -#ifndef MINIZ_NO_STDIO -mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, - mz_uint32 flags); -#endif - -// Returns the total number of files in the archive. -mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip); - -// Returns detailed information about an archive file entry. -mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, - mz_zip_archive_file_stat *pStat); - -// Determines if an archive file entry is a directory entry. -mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, - mz_uint file_index); -mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, - mz_uint file_index); - -// Retrieves the filename of an archive file entry. -// Returns the number of bytes written to pFilename, or if filename_buf_size is -// 0 this function returns the number of bytes needed to fully store the -// filename. -mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, - char *pFilename, mz_uint filename_buf_size); - -// Attempts to locates a file in the archive's central directory. -// Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH -// Returns -1 if the file cannot be found. -int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, - const char *pComment, mz_uint flags); - -// Extracts a archive file to a memory buffer using no memory allocation. -mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, - mz_uint file_index, void *pBuf, - size_t buf_size, mz_uint flags, - void *pUser_read_buf, - size_t user_read_buf_size); -mz_bool mz_zip_reader_extract_file_to_mem_no_alloc( - mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, - mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size); - -// Extracts a archive file to a memory buffer. -mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, - void *pBuf, size_t buf_size, - mz_uint flags); -mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, - const char *pFilename, void *pBuf, - size_t buf_size, mz_uint flags); - -// Extracts a archive file to a dynamically allocated heap buffer. -void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, - size_t *pSize, mz_uint flags); -void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, - const char *pFilename, size_t *pSize, - mz_uint flags); - -// Extracts a archive file using a callback function to output the file's data. -mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, - mz_uint file_index, - mz_file_write_func pCallback, - void *pOpaque, mz_uint flags); -mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, - const char *pFilename, - mz_file_write_func pCallback, - void *pOpaque, mz_uint flags); - -#ifndef MINIZ_NO_STDIO -// Extracts a archive file to a disk file and sets its last accessed and -// modified times. -// This function only extracts files, not archive directory records. -mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, - const char *pDst_filename, mz_uint flags); -mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, - const char *pArchive_filename, - const char *pDst_filename, - mz_uint flags); -#endif - -// Ends archive reading, freeing all allocations, and closing the input archive -// file if mz_zip_reader_init_file() was used. -mz_bool mz_zip_reader_end(mz_zip_archive *pZip); - -// ZIP archive writing - -#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS - -// Inits a ZIP archive writer. -mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size); -mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, - size_t size_to_reserve_at_beginning, - size_t initial_allocation_size); - -#ifndef MINIZ_NO_STDIO -mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, - mz_uint64 size_to_reserve_at_beginning); -#endif - -// Converts a ZIP archive reader object into a writer object, to allow efficient -// in-place file appends to occur on an existing archive. -// For archives opened using mz_zip_reader_init_file, pFilename must be the -// archive's filename so it can be reopened for writing. If the file can't be -// reopened, mz_zip_reader_end() will be called. -// For archives opened using mz_zip_reader_init_mem, the memory block must be -// growable using the realloc callback (which defaults to realloc unless you've -// overridden it). -// Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's -// user provided m_pWrite function cannot be NULL. -// Note: In-place archive modification is not recommended unless you know what -// you're doing, because if execution stops or something goes wrong before -// the archive is finalized the file's central directory will be hosed. -mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, - const char *pFilename); - -// Adds the contents of a memory buffer to an archive. These functions record -// the current local time into the archive. -// To add a directory entry, call this method with an archive name ending in a -// forwardslash with empty buffer. -// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, -// MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or -// just set to MZ_DEFAULT_COMPRESSION. -mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, - const void *pBuf, size_t buf_size, - mz_uint level_and_flags); -mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, - const char *pArchive_name, const void *pBuf, - size_t buf_size, const void *pComment, - mz_uint16 comment_size, - mz_uint level_and_flags, mz_uint64 uncomp_size, - mz_uint32 uncomp_crc32); - -#ifndef MINIZ_NO_STDIO -// Adds the contents of a disk file to an archive. This function also records -// the disk file's modified time into the archive. -// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, -// MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or -// just set to MZ_DEFAULT_COMPRESSION. -mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, - const char *pSrc_filename, const void *pComment, - mz_uint16 comment_size, mz_uint level_and_flags); -#endif - -// Adds a file to an archive by fully cloning the data from another archive. -// This function fully clones the source file's compressed data (no -// recompression), along with its full filename, extra data, and comment fields. -mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, - mz_zip_archive *pSource_zip, - mz_uint file_index); - -// Finalizes the archive by writing the central directory records followed by -// the end of central directory record. -// After an archive is finalized, the only valid call on the mz_zip_archive -// struct is mz_zip_writer_end(). -// An archive must be manually finalized by calling this function for it to be -// valid. -mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip); -mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, - size_t *pSize); - -// Ends archive writing, freeing all allocations, and closing the output file if -// mz_zip_writer_init_file() was used. -// Note for the archive to be valid, it must have been finalized before ending. -mz_bool mz_zip_writer_end(mz_zip_archive *pZip); - -// Misc. high-level helper functions: - -// mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) -// appends a memory blob to a ZIP archive. -// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, -// MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or -// just set to MZ_DEFAULT_COMPRESSION. -mz_bool mz_zip_add_mem_to_archive_file_in_place( - const char *pZip_filename, const char *pArchive_name, const void *pBuf, - size_t buf_size, const void *pComment, mz_uint16 comment_size, - mz_uint level_and_flags); - -// Reads a single file from an archive into a heap block. -// Returns NULL on failure. -void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, - const char *pArchive_name, - size_t *pSize, mz_uint zip_flags); - -#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS - -#endif // #ifndef MINIZ_NO_ARCHIVE_APIS - -// ------------------- Low-level Decompression API Definitions - -// Decompression flags used by tinfl_decompress(). -// TINFL_FLAG_PARSE_ZLIB_HEADER: If set, the input has a valid zlib header and -// ends with an adler32 checksum (it's a valid zlib stream). Otherwise, the -// input is a raw deflate stream. -// TINFL_FLAG_HAS_MORE_INPUT: If set, there are more input bytes available -// beyond the end of the supplied input buffer. If clear, the input buffer -// contains all remaining input. -// TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF: If set, the output buffer is large -// enough to hold the entire decompressed stream. If clear, the output buffer is -// at least the size of the dictionary (typically 32KB). -// TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the -// decompressed bytes. -enum { - TINFL_FLAG_PARSE_ZLIB_HEADER = 1, - TINFL_FLAG_HAS_MORE_INPUT = 2, - TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4, - TINFL_FLAG_COMPUTE_ADLER32 = 8 -}; - -// High level decompression functions: -// tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block -// allocated via malloc(). -// On entry: -// pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data -// to decompress. -// On return: -// Function returns a pointer to the decompressed data, or NULL on failure. -// *pOut_len will be set to the decompressed data's size, which could be larger -// than src_buf_len on uncompressible data. -// The caller must call mz_free() on the returned block when it's no longer -// needed. -void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, - size_t *pOut_len, int flags); - -// tinfl_decompress_mem_to_mem() decompresses a block in memory to another block -// in memory. -// Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes -// written on success. -#define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1)) -size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, - const void *pSrc_buf, size_t src_buf_len, - int flags); - -// tinfl_decompress_mem_to_callback() decompresses a block in memory to an -// internal 32KB buffer, and a user provided callback function will be called to -// flush the buffer. -// Returns 1 on success or 0 on failure. -typedef int (*tinfl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser); -int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, - tinfl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags); - -struct tinfl_decompressor_tag; -typedef struct tinfl_decompressor_tag tinfl_decompressor; - -// Max size of LZ dictionary. -#define TINFL_LZ_DICT_SIZE 32768 - -// Return status. -typedef enum { - TINFL_STATUS_BAD_PARAM = -3, - TINFL_STATUS_ADLER32_MISMATCH = -2, - TINFL_STATUS_FAILED = -1, - TINFL_STATUS_DONE = 0, - TINFL_STATUS_NEEDS_MORE_INPUT = 1, - TINFL_STATUS_HAS_MORE_OUTPUT = 2 -} tinfl_status; - -// Initializes the decompressor to its initial state. -#define tinfl_init(r) \ - do { \ - (r)->m_state = 0; \ - } \ - MZ_MACRO_END -#define tinfl_get_adler32(r) (r)->m_check_adler32 - -// Main low-level decompressor coroutine function. This is the only function -// actually needed for decompression. All the other functions are just -// high-level helpers for improved usability. -// This is a universal API, i.e. it can be used as a building block to build any -// desired higher level decompression API. In the limit case, it can be called -// once per every byte input or output. -tinfl_status tinfl_decompress(tinfl_decompressor *r, - const mz_uint8 *pIn_buf_next, - size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, - mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, - const mz_uint32 decomp_flags); - -// Internal/private bits follow. -enum { - TINFL_MAX_HUFF_TABLES = 3, - TINFL_MAX_HUFF_SYMBOLS_0 = 288, - TINFL_MAX_HUFF_SYMBOLS_1 = 32, - TINFL_MAX_HUFF_SYMBOLS_2 = 19, - TINFL_FAST_LOOKUP_BITS = 10, - TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS -}; - -typedef struct { - mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0]; - mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], - m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2]; -} tinfl_huff_table; - -#if MINIZ_HAS_64BIT_REGISTERS -#define TINFL_USE_64BIT_BITBUF 1 -#endif - -#if TINFL_USE_64BIT_BITBUF -typedef mz_uint64 tinfl_bit_buf_t; -#define TINFL_BITBUF_SIZE (64) -#else -typedef mz_uint32 tinfl_bit_buf_t; -#define TINFL_BITBUF_SIZE (32) -#endif - -struct tinfl_decompressor_tag { - mz_uint32 m_state, m_num_bits, m_zhdr0, m_zhdr1, m_z_adler32, m_final, m_type, - m_check_adler32, m_dist, m_counter, m_num_extra, - m_table_sizes[TINFL_MAX_HUFF_TABLES]; - tinfl_bit_buf_t m_bit_buf; - size_t m_dist_from_out_buf_start; - tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES]; - mz_uint8 m_raw_header[4], - m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137]; -}; - -// ------------------- Low-level Compression API Definitions - -// Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly -// slower, and raw/dynamic blocks will be output more frequently). -#define TDEFL_LESS_MEMORY 0 - -// tdefl_init() compression flags logically OR'd together (low 12 bits contain -// the max. number of probes per dictionary search): -// TDEFL_DEFAULT_MAX_PROBES: The compressor defaults to 128 dictionary probes -// per dictionary search. 0=Huffman only, 1=Huffman+LZ (fastest/crap -// compression), 4095=Huffman+LZ (slowest/best compression). -enum { - TDEFL_HUFFMAN_ONLY = 0, - TDEFL_DEFAULT_MAX_PROBES = 128, - TDEFL_MAX_PROBES_MASK = 0xFFF -}; - -// TDEFL_WRITE_ZLIB_HEADER: If set, the compressor outputs a zlib header before -// the deflate data, and the Adler-32 of the source data at the end. Otherwise, -// you'll get raw deflate data. -// TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even -// when not writing zlib headers). -// TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more -// efficient lazy parsing. -// TDEFL_NONDETERMINISTIC_PARSING_FLAG: Enable to decrease the compressor's -// initialization time to the minimum, but the output may vary from run to run -// given the same input (depending on the contents of memory). -// TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1) -// TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. -// TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables. -// TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks. -// The low 12 bits are reserved to control the max # of hash probes per -// dictionary lookup (see TDEFL_MAX_PROBES_MASK). -enum { - TDEFL_WRITE_ZLIB_HEADER = 0x01000, - TDEFL_COMPUTE_ADLER32 = 0x02000, - TDEFL_GREEDY_PARSING_FLAG = 0x04000, - TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000, - TDEFL_RLE_MATCHES = 0x10000, - TDEFL_FILTER_MATCHES = 0x20000, - TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000, - TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000 -}; - -// High level compression functions: -// tdefl_compress_mem_to_heap() compresses a block in memory to a heap block -// allocated via malloc(). -// On entry: -// pSrc_buf, src_buf_len: Pointer and size of source block to compress. -// flags: The max match finder probes (default is 128) logically OR'd against -// the above flags. Higher probes are slower but improve compression. -// On return: -// Function returns a pointer to the compressed data, or NULL on failure. -// *pOut_len will be set to the compressed data's size, which could be larger -// than src_buf_len on uncompressible data. -// The caller must free() the returned block when it's no longer needed. -void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, - size_t *pOut_len, int flags); - -// tdefl_compress_mem_to_mem() compresses a block in memory to another block in -// memory. -// Returns 0 on failure. -size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, - const void *pSrc_buf, size_t src_buf_len, - int flags); - -// Compresses an image to a compressed PNG file in memory. -// On entry: -// pImage, w, h, and num_chans describe the image to compress. num_chans may be -// 1, 2, 3, or 4. -// The image pitch in bytes per scanline will be w*num_chans. The leftmost -// pixel on the top scanline is stored first in memory. -// level may range from [0,10], use MZ_NO_COMPRESSION, MZ_BEST_SPEED, -// MZ_BEST_COMPRESSION, etc. or a decent default is MZ_DEFAULT_LEVEL -// If flip is true, the image will be flipped on the Y axis (useful for OpenGL -// apps). -// On return: -// Function returns a pointer to the compressed data, or NULL on failure. -// *pLen_out will be set to the size of the PNG image file. -// The caller must mz_free() the returned heap block (which will typically be -// larger than *pLen_out) when it's no longer needed. -void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, - int h, int num_chans, - size_t *pLen_out, - mz_uint level, mz_bool flip); -void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, - int num_chans, size_t *pLen_out); - -// Output stream interface. The compressor uses this interface to write -// compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time. -typedef mz_bool (*tdefl_put_buf_func_ptr)(const void *pBuf, int len, - void *pUser); - -// tdefl_compress_mem_to_output() compresses a block to an output stream. The -// above helpers use this function internally. -mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, - tdefl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags); - -enum { - TDEFL_MAX_HUFF_TABLES = 3, - TDEFL_MAX_HUFF_SYMBOLS_0 = 288, - TDEFL_MAX_HUFF_SYMBOLS_1 = 32, - TDEFL_MAX_HUFF_SYMBOLS_2 = 19, - TDEFL_LZ_DICT_SIZE = 32768, - TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1, - TDEFL_MIN_MATCH_LEN = 3, - TDEFL_MAX_MATCH_LEN = 258 -}; - -// TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed -// output block (using static/fixed Huffman codes). -#if TDEFL_LESS_MEMORY -enum { - TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024, - TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, - TDEFL_MAX_HUFF_SYMBOLS = 288, - TDEFL_LZ_HASH_BITS = 12, - TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, - TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, - TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS -}; -#else -enum { - TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024, - TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, - TDEFL_MAX_HUFF_SYMBOLS = 288, - TDEFL_LZ_HASH_BITS = 15, - TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, - TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, - TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS -}; -#endif - -// The low-level tdefl functions below may be used directly if the above helper -// functions aren't flexible enough. The low-level functions don't make any heap -// allocations, unlike the above helper functions. -typedef enum { - TDEFL_STATUS_BAD_PARAM = -2, - TDEFL_STATUS_PUT_BUF_FAILED = -1, - TDEFL_STATUS_OKAY = 0, - TDEFL_STATUS_DONE = 1 -} tdefl_status; - -// Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums -typedef enum { - TDEFL_NO_FLUSH = 0, - TDEFL_SYNC_FLUSH = 2, - TDEFL_FULL_FLUSH = 3, - TDEFL_FINISH = 4 -} tdefl_flush; - -// tdefl's compression state structure. -typedef struct { - tdefl_put_buf_func_ptr m_pPut_buf_func; - void *m_pPut_buf_user; - mz_uint m_flags, m_max_probes[2]; - int m_greedy_parsing; - mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size; - mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end; - mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, - m_bit_buffer; - mz_uint m_saved_match_dist, m_saved_match_len, m_saved_lit, - m_output_flush_ofs, m_output_flush_remaining, m_finished, m_block_index, - m_wants_to_finish; - tdefl_status m_prev_return_status; - const void *m_pIn_buf; - void *m_pOut_buf; - size_t *m_pIn_buf_size, *m_pOut_buf_size; - tdefl_flush m_flush; - const mz_uint8 *m_pSrc; - size_t m_src_buf_left, m_out_buf_ofs; - mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1]; - mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; - mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; - mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; - mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE]; - mz_uint16 m_next[TDEFL_LZ_DICT_SIZE]; - mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE]; - mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE]; -} tdefl_compressor; - -// Initializes the compressor. -// There is no corresponding deinit() function because the tdefl API's do not -// dynamically allocate memory. -// pBut_buf_func: If NULL, output data will be supplied to the specified -// callback. In this case, the user should call the tdefl_compress_buffer() API -// for compression. -// If pBut_buf_func is NULL the user should always call the tdefl_compress() -// API. -// flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, -// etc.) -tdefl_status tdefl_init(tdefl_compressor *d, - tdefl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags); - -// Compresses a block of data, consuming as much of the specified input buffer -// as possible, and writing as much compressed data to the specified output -// buffer as possible. -tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, - size_t *pIn_buf_size, void *pOut_buf, - size_t *pOut_buf_size, tdefl_flush flush); - -// tdefl_compress_buffer() is only usable when the tdefl_init() is called with a -// non-NULL tdefl_put_buf_func_ptr. -// tdefl_compress_buffer() always consumes the entire input buffer. -tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, - size_t in_buf_size, tdefl_flush flush); - -tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d); -mz_uint32 tdefl_get_adler32(tdefl_compressor *d); - -// Can't use tdefl_create_comp_flags_from_zip_params if MINIZ_NO_ZLIB_APIS isn't -// defined, because it uses some of its macros. -#ifndef MINIZ_NO_ZLIB_APIS -// Create tdefl_compress() flags given zlib-style compression parameters. -// level may range from [0,10] (where 10 is absolute max compression, but may be -// much slower on some files) -// window_bits may be -15 (raw deflate) or 15 (zlib) -// strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, -// MZ_RLE, or MZ_FIXED -mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, - int strategy); -#endif // #ifndef MINIZ_NO_ZLIB_APIS - -#ifdef __cplusplus -} -#endif - -#endif // MINIZ_HEADER_INCLUDED - -// ------------------- End of Header: Implementation follows. (If you only want -// the header, define MINIZ_HEADER_FILE_ONLY.) - -#ifndef MINIZ_HEADER_FILE_ONLY - -typedef unsigned char mz_validate_uint16[sizeof(mz_uint16) == 2 ? 1 : -1]; -typedef unsigned char mz_validate_uint32[sizeof(mz_uint32) == 4 ? 1 : -1]; -typedef unsigned char mz_validate_uint64[sizeof(mz_uint64) == 8 ? 1 : -1]; - -//#include -//#include - -#define MZ_ASSERT(x) assert(x) - -#ifdef MINIZ_NO_MALLOC -#define MZ_MALLOC(x) NULL -#define MZ_FREE(x) (void)x, ((void)0) -#define MZ_REALLOC(p, x) NULL -#else -#define MZ_MALLOC(x) malloc(x) -#define MZ_FREE(x) free(x) -#define MZ_REALLOC(p, x) realloc(p, x) -#endif - -#define MZ_MAX(a, b) (((a) > (b)) ? (a) : (b)) -#define MZ_MIN(a, b) (((a) < (b)) ? (a) : (b)) -#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj)) - -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN -#define MZ_READ_LE16(p) *((const mz_uint16 *)(p)) -#define MZ_READ_LE32(p) *((const mz_uint32 *)(p)) -#else -#define MZ_READ_LE16(p) \ - ((mz_uint32)(((const mz_uint8 *)(p))[0]) | \ - ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U)) -#define MZ_READ_LE32(p) \ - ((mz_uint32)(((const mz_uint8 *)(p))[0]) | \ - ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U) | \ - ((mz_uint32)(((const mz_uint8 *)(p))[2]) << 16U) | \ - ((mz_uint32)(((const mz_uint8 *)(p))[3]) << 24U)) -#endif - -#ifdef _MSC_VER -#define MZ_FORCEINLINE __forceinline -#elif defined(__GNUC__) -#define MZ_FORCEINLINE inline __attribute__((__always_inline__)) -#else -#define MZ_FORCEINLINE inline -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -// ------------------- zlib-style API's - -mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len) { - mz_uint32 i, s1 = (mz_uint32)(adler & 0xffff), s2 = (mz_uint32)(adler >> 16); - size_t block_len = buf_len % 5552; - if (!ptr) return MZ_ADLER32_INIT; - while (buf_len) { - for (i = 0; i + 7 < block_len; i += 8, ptr += 8) { - s1 += ptr[0], s2 += s1; - s1 += ptr[1], s2 += s1; - s1 += ptr[2], s2 += s1; - s1 += ptr[3], s2 += s1; - s1 += ptr[4], s2 += s1; - s1 += ptr[5], s2 += s1; - s1 += ptr[6], s2 += s1; - s1 += ptr[7], s2 += s1; - } - for (; i < block_len; ++i) s1 += *ptr++, s2 += s1; - s1 %= 65521U, s2 %= 65521U; - buf_len -= block_len; - block_len = 5552; - } - return (s2 << 16) + s1; -} - -// Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C -// implementation that balances processor cache usage against speed": -// http://www.geocities.com/malbrain/ -mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len) { - static const mz_uint32 s_crc32[16] = { - 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, - 0x4db26158, 0x5005713c, 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, - 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c}; - mz_uint32 crcu32 = (mz_uint32)crc; - if (!ptr) return MZ_CRC32_INIT; - crcu32 = ~crcu32; - while (buf_len--) { - mz_uint8 b = *ptr++; - crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)]; - crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)]; - } - return ~crcu32; -} - -void mz_free(void *p) { MZ_FREE(p); } - -#ifndef MINIZ_NO_ZLIB_APIS - -static void *def_alloc_func(void *opaque, size_t items, size_t size) { - (void)opaque, (void)items, (void)size; - return MZ_MALLOC(items * size); -} -static void def_free_func(void *opaque, void *address) { - (void)opaque, (void)address; - MZ_FREE(address); -} -// static void *def_realloc_func(void *opaque, void *address, size_t items, -// size_t size) { -// (void)opaque, (void)address, (void)items, (void)size; -// return MZ_REALLOC(address, items * size); -//} - -const char *mz_version(void) { return MZ_VERSION; } - -int mz_deflateInit(mz_streamp pStream, int level) { - return mz_deflateInit2(pStream, level, MZ_DEFLATED, MZ_DEFAULT_WINDOW_BITS, 9, - MZ_DEFAULT_STRATEGY); -} - -int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, - int mem_level, int strategy) { - tdefl_compressor *pComp; - mz_uint comp_flags = - TDEFL_COMPUTE_ADLER32 | - tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy); - - if (!pStream) return MZ_STREAM_ERROR; - if ((method != MZ_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || - ((window_bits != MZ_DEFAULT_WINDOW_BITS) && - (-window_bits != MZ_DEFAULT_WINDOW_BITS))) - return MZ_PARAM_ERROR; - - pStream->data_type = 0; - pStream->adler = MZ_ADLER32_INIT; - pStream->msg = NULL; - pStream->reserved = 0; - pStream->total_in = 0; - pStream->total_out = 0; - if (!pStream->zalloc) pStream->zalloc = def_alloc_func; - if (!pStream->zfree) pStream->zfree = def_free_func; - - pComp = (tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, - sizeof(tdefl_compressor)); - if (!pComp) return MZ_MEM_ERROR; - - pStream->state = (struct mz_internal_state *)pComp; - - if (tdefl_init(pComp, NULL, NULL, comp_flags) != TDEFL_STATUS_OKAY) { - mz_deflateEnd(pStream); - return MZ_PARAM_ERROR; - } - - return MZ_OK; -} - -int mz_deflateReset(mz_streamp pStream) { - if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || - (!pStream->zfree)) - return MZ_STREAM_ERROR; - pStream->total_in = pStream->total_out = 0; - tdefl_init((tdefl_compressor *)pStream->state, NULL, NULL, - ((tdefl_compressor *)pStream->state)->m_flags); - return MZ_OK; -} - -int mz_deflate(mz_streamp pStream, int flush) { - size_t in_bytes, out_bytes; - mz_ulong orig_total_in, orig_total_out; - int mz_status = MZ_OK; - - if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > MZ_FINISH) || - (!pStream->next_out)) - return MZ_STREAM_ERROR; - if (!pStream->avail_out) return MZ_BUF_ERROR; - - if (flush == MZ_PARTIAL_FLUSH) flush = MZ_SYNC_FLUSH; - - if (((tdefl_compressor *)pStream->state)->m_prev_return_status == - TDEFL_STATUS_DONE) - return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR; - - orig_total_in = pStream->total_in; - orig_total_out = pStream->total_out; - for (;;) { - tdefl_status defl_status; - in_bytes = pStream->avail_in; - out_bytes = pStream->avail_out; - - defl_status = tdefl_compress((tdefl_compressor *)pStream->state, - pStream->next_in, &in_bytes, pStream->next_out, - &out_bytes, (tdefl_flush)flush); - pStream->next_in += (mz_uint)in_bytes; - pStream->avail_in -= (mz_uint)in_bytes; - pStream->total_in += (mz_uint)in_bytes; - pStream->adler = tdefl_get_adler32((tdefl_compressor *)pStream->state); - - pStream->next_out += (mz_uint)out_bytes; - pStream->avail_out -= (mz_uint)out_bytes; - pStream->total_out += (mz_uint)out_bytes; - - if (defl_status < 0) { - mz_status = MZ_STREAM_ERROR; - break; - } else if (defl_status == TDEFL_STATUS_DONE) { - mz_status = MZ_STREAM_END; - break; - } else if (!pStream->avail_out) - break; - else if ((!pStream->avail_in) && (flush != MZ_FINISH)) { - if ((flush) || (pStream->total_in != orig_total_in) || - (pStream->total_out != orig_total_out)) - break; - return MZ_BUF_ERROR; // Can't make forward progress without some input. - } - } - return mz_status; -} - -int mz_deflateEnd(mz_streamp pStream) { - if (!pStream) return MZ_STREAM_ERROR; - if (pStream->state) { - pStream->zfree(pStream->opaque, pStream->state); - pStream->state = NULL; - } - return MZ_OK; -} - -mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len) { - (void)pStream; - // This is really over conservative. (And lame, but it's actually pretty - // tricky to compute a true upper bound given the way tdefl's blocking works.) - return MZ_MAX(128 + (source_len * 110) / 100, - 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5); -} - -int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len, int level) { - int status; - mz_stream stream; - memset(&stream, 0, sizeof(stream)); - - // In case mz_ulong is 64-bits (argh I hate longs). - if ((source_len | *pDest_len) > 0xFFFFFFFFU) return MZ_PARAM_ERROR; - - stream.next_in = pSource; - stream.avail_in = (mz_uint32)source_len; - stream.next_out = pDest; - stream.avail_out = (mz_uint32)*pDest_len; - - status = mz_deflateInit(&stream, level); - if (status != MZ_OK) return status; - - status = mz_deflate(&stream, MZ_FINISH); - if (status != MZ_STREAM_END) { - mz_deflateEnd(&stream); - return (status == MZ_OK) ? MZ_BUF_ERROR : status; - } - - *pDest_len = stream.total_out; - return mz_deflateEnd(&stream); -} - -int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len) { - return mz_compress2(pDest, pDest_len, pSource, source_len, - MZ_DEFAULT_COMPRESSION); -} - -mz_ulong mz_compressBound(mz_ulong source_len) { - return mz_deflateBound(NULL, source_len); -} - -typedef struct { - tinfl_decompressor m_decomp; - mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed; - int m_window_bits; - mz_uint8 m_dict[TINFL_LZ_DICT_SIZE]; - tinfl_status m_last_status; -} inflate_state; - -int mz_inflateInit2(mz_streamp pStream, int window_bits) { - inflate_state *pDecomp; - if (!pStream) return MZ_STREAM_ERROR; - if ((window_bits != MZ_DEFAULT_WINDOW_BITS) && - (-window_bits != MZ_DEFAULT_WINDOW_BITS)) - return MZ_PARAM_ERROR; - - pStream->data_type = 0; - pStream->adler = 0; - pStream->msg = NULL; - pStream->total_in = 0; - pStream->total_out = 0; - pStream->reserved = 0; - if (!pStream->zalloc) pStream->zalloc = def_alloc_func; - if (!pStream->zfree) pStream->zfree = def_free_func; - - pDecomp = (inflate_state *)pStream->zalloc(pStream->opaque, 1, - sizeof(inflate_state)); - if (!pDecomp) return MZ_MEM_ERROR; - - pStream->state = (struct mz_internal_state *)pDecomp; - - tinfl_init(&pDecomp->m_decomp); - pDecomp->m_dict_ofs = 0; - pDecomp->m_dict_avail = 0; - pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT; - pDecomp->m_first_call = 1; - pDecomp->m_has_flushed = 0; - pDecomp->m_window_bits = window_bits; - - return MZ_OK; -} - -int mz_inflateInit(mz_streamp pStream) { - return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS); -} - -int mz_inflate(mz_streamp pStream, int flush) { - inflate_state *pState; - mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32; - size_t in_bytes, out_bytes, orig_avail_in; - tinfl_status status; - - if ((!pStream) || (!pStream->state)) return MZ_STREAM_ERROR; - if (flush == MZ_PARTIAL_FLUSH) flush = MZ_SYNC_FLUSH; - if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH)) - return MZ_STREAM_ERROR; - - pState = (inflate_state *)pStream->state; - if (pState->m_window_bits > 0) decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER; - orig_avail_in = pStream->avail_in; - - first_call = pState->m_first_call; - pState->m_first_call = 0; - if (pState->m_last_status < 0) return MZ_DATA_ERROR; - - if (pState->m_has_flushed && (flush != MZ_FINISH)) return MZ_STREAM_ERROR; - pState->m_has_flushed |= (flush == MZ_FINISH); - - if ((flush == MZ_FINISH) && (first_call)) { - // MZ_FINISH on the first call implies that the input and output buffers are - // large enough to hold the entire compressed/decompressed file. - decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF; - in_bytes = pStream->avail_in; - out_bytes = pStream->avail_out; - status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, - pStream->next_out, pStream->next_out, &out_bytes, - decomp_flags); - pState->m_last_status = status; - pStream->next_in += (mz_uint)in_bytes; - pStream->avail_in -= (mz_uint)in_bytes; - pStream->total_in += (mz_uint)in_bytes; - pStream->adler = tinfl_get_adler32(&pState->m_decomp); - pStream->next_out += (mz_uint)out_bytes; - pStream->avail_out -= (mz_uint)out_bytes; - pStream->total_out += (mz_uint)out_bytes; - - if (status < 0) - return MZ_DATA_ERROR; - else if (status != TINFL_STATUS_DONE) { - pState->m_last_status = TINFL_STATUS_FAILED; - return MZ_BUF_ERROR; - } - return MZ_STREAM_END; - } - // flush != MZ_FINISH then we must assume there's more input. - if (flush != MZ_FINISH) decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT; - - if (pState->m_dict_avail) { - n = MZ_MIN(pState->m_dict_avail, pStream->avail_out); - memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n); - pStream->next_out += n; - pStream->avail_out -= n; - pStream->total_out += n; - pState->m_dict_avail -= n; - pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1); - return ((pState->m_last_status == TINFL_STATUS_DONE) && - (!pState->m_dict_avail)) - ? MZ_STREAM_END - : MZ_OK; - } - - for (;;) { - in_bytes = pStream->avail_in; - out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs; - - status = tinfl_decompress( - &pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, - pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags); - pState->m_last_status = status; - - pStream->next_in += (mz_uint)in_bytes; - pStream->avail_in -= (mz_uint)in_bytes; - pStream->total_in += (mz_uint)in_bytes; - pStream->adler = tinfl_get_adler32(&pState->m_decomp); - - pState->m_dict_avail = (mz_uint)out_bytes; - - n = MZ_MIN(pState->m_dict_avail, pStream->avail_out); - memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n); - pStream->next_out += n; - pStream->avail_out -= n; - pStream->total_out += n; - pState->m_dict_avail -= n; - pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1); - - if (status < 0) - return MZ_DATA_ERROR; // Stream is corrupted (there could be some - // uncompressed data left in the output dictionary - - // oh well). - else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in)) - return MZ_BUF_ERROR; // Signal caller that we can't make forward progress - // without supplying more input or by setting flush - // to MZ_FINISH. - else if (flush == MZ_FINISH) { - // The output buffer MUST be large to hold the remaining uncompressed data - // when flush==MZ_FINISH. - if (status == TINFL_STATUS_DONE) - return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END; - // status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means there's - // at least 1 more byte on the way. If there's no more room left in the - // output buffer then something is wrong. - else if (!pStream->avail_out) - return MZ_BUF_ERROR; - } else if ((status == TINFL_STATUS_DONE) || (!pStream->avail_in) || - (!pStream->avail_out) || (pState->m_dict_avail)) - break; - } - - return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) - ? MZ_STREAM_END - : MZ_OK; -} - -int mz_inflateEnd(mz_streamp pStream) { - if (!pStream) return MZ_STREAM_ERROR; - if (pStream->state) { - pStream->zfree(pStream->opaque, pStream->state); - pStream->state = NULL; - } - return MZ_OK; -} - -int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, - const unsigned char *pSource, mz_ulong source_len) { - mz_stream stream; - int status; - memset(&stream, 0, sizeof(stream)); - - // In case mz_ulong is 64-bits (argh I hate longs). - if ((source_len | *pDest_len) > 0xFFFFFFFFU) return MZ_PARAM_ERROR; - - stream.next_in = pSource; - stream.avail_in = (mz_uint32)source_len; - stream.next_out = pDest; - stream.avail_out = (mz_uint32)*pDest_len; - - status = mz_inflateInit(&stream); - if (status != MZ_OK) return status; - - status = mz_inflate(&stream, MZ_FINISH); - if (status != MZ_STREAM_END) { - mz_inflateEnd(&stream); - return ((status == MZ_BUF_ERROR) && (!stream.avail_in)) ? MZ_DATA_ERROR - : status; - } - *pDest_len = stream.total_out; - - return mz_inflateEnd(&stream); -} - -const char *mz_error(int err) { - static struct { - int m_err; - const char *m_pDesc; - } s_error_descs[] = {{MZ_OK, ""}, - {MZ_STREAM_END, "stream end"}, - {MZ_NEED_DICT, "need dictionary"}, - {MZ_ERRNO, "file error"}, - {MZ_STREAM_ERROR, "stream error"}, - {MZ_DATA_ERROR, "data error"}, - {MZ_MEM_ERROR, "out of memory"}, - {MZ_BUF_ERROR, "buf error"}, - {MZ_VERSION_ERROR, "version error"}, - {MZ_PARAM_ERROR, "parameter error"}}; - mz_uint i; - for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i) - if (s_error_descs[i].m_err == err) return s_error_descs[i].m_pDesc; - return NULL; -} - -#endif // MINIZ_NO_ZLIB_APIS - -// ------------------- Low-level Decompression (completely independent from all -// compression API's) - -#define TINFL_MEMCPY(d, s, l) memcpy(d, s, l) -#define TINFL_MEMSET(p, c, l) memset(p, c, l) - -#define TINFL_CR_BEGIN \ - switch (r->m_state) { \ - case 0: -#define TINFL_CR_RETURN(state_index, result) \ - do { \ - status = result; \ - r->m_state = state_index; \ - goto common_exit; \ - case state_index:; \ - } \ - MZ_MACRO_END -#define TINFL_CR_RETURN_FOREVER(state_index, result) \ - do { \ - for (;;) { \ - TINFL_CR_RETURN(state_index, result); \ - } \ - } \ - MZ_MACRO_END -#define TINFL_CR_FINISH } - -// TODO: If the caller has indicated that there's no more input, and we attempt -// to read beyond the input buf, then something is wrong with the input because -// the inflator never -// reads ahead more than it needs to. Currently TINFL_GET_BYTE() pads the end of -// the stream with 0's in this scenario. -#define TINFL_GET_BYTE(state_index, c) \ - do { \ - if (pIn_buf_cur >= pIn_buf_end) { \ - for (;;) { \ - if (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) { \ - TINFL_CR_RETURN(state_index, TINFL_STATUS_NEEDS_MORE_INPUT); \ - if (pIn_buf_cur < pIn_buf_end) { \ - c = *pIn_buf_cur++; \ - break; \ - } \ - } else { \ - c = 0; \ - break; \ - } \ - } \ - } else \ - c = *pIn_buf_cur++; \ - } \ - MZ_MACRO_END - -#define TINFL_NEED_BITS(state_index, n) \ - do { \ - mz_uint c; \ - TINFL_GET_BYTE(state_index, c); \ - bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \ - num_bits += 8; \ - } while (num_bits < (mz_uint)(n)) -#define TINFL_SKIP_BITS(state_index, n) \ - do { \ - if (num_bits < (mz_uint)(n)) { \ - TINFL_NEED_BITS(state_index, n); \ - } \ - bit_buf >>= (n); \ - num_bits -= (n); \ - } \ - MZ_MACRO_END -#define TINFL_GET_BITS(state_index, b, n) \ - do { \ - if (num_bits < (mz_uint)(n)) { \ - TINFL_NEED_BITS(state_index, n); \ - } \ - b = bit_buf & ((1 << (n)) - 1); \ - bit_buf >>= (n); \ - num_bits -= (n); \ - } \ - MZ_MACRO_END - -// TINFL_HUFF_BITBUF_FILL() is only used rarely, when the number of bytes -// remaining in the input buffer falls below 2. -// It reads just enough bytes from the input stream that are needed to decode -// the next Huffman code (and absolutely no more). It works by trying to fully -// decode a -// Huffman code by using whatever bits are currently present in the bit buffer. -// If this fails, it reads another byte, and tries again until it succeeds or -// until the -// bit buffer contains >=15 bits (deflate's max. Huffman code size). -#define TINFL_HUFF_BITBUF_FILL(state_index, pHuff) \ - do { \ - temp = (pHuff)->m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]; \ - if (temp >= 0) { \ - code_len = temp >> 9; \ - if ((code_len) && (num_bits >= code_len)) break; \ - } else if (num_bits > TINFL_FAST_LOOKUP_BITS) { \ - code_len = TINFL_FAST_LOOKUP_BITS; \ - do { \ - temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \ - } while ((temp < 0) && (num_bits >= (code_len + 1))); \ - if (temp >= 0) break; \ - } \ - TINFL_GET_BYTE(state_index, c); \ - bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \ - num_bits += 8; \ - } while (num_bits < 15); - -// TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex -// than you would initially expect because the zlib API expects the decompressor -// to never read -// beyond the final byte of the deflate stream. (In other words, when this macro -// wants to read another byte from the input, it REALLY needs another byte in -// order to fully -// decode the next Huffman code.) Handling this properly is particularly -// important on raw deflate (non-zlib) streams, which aren't followed by a byte -// aligned adler-32. -// The slow path is only executed at the very end of the input buffer. -#define TINFL_HUFF_DECODE(state_index, sym, pHuff) \ - do { \ - int temp; \ - mz_uint code_len, c; \ - if (num_bits < 15) { \ - if ((pIn_buf_end - pIn_buf_cur) < 2) { \ - TINFL_HUFF_BITBUF_FILL(state_index, pHuff); \ - } else { \ - bit_buf |= (((tinfl_bit_buf_t)pIn_buf_cur[0]) << num_bits) | \ - (((tinfl_bit_buf_t)pIn_buf_cur[1]) << (num_bits + 8)); \ - pIn_buf_cur += 2; \ - num_bits += 16; \ - } \ - } \ - if ((temp = (pHuff)->m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= \ - 0) \ - code_len = temp >> 9, temp &= 511; \ - else { \ - code_len = TINFL_FAST_LOOKUP_BITS; \ - do { \ - temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \ - } while (temp < 0); \ - } \ - sym = temp; \ - bit_buf >>= code_len; \ - num_bits -= code_len; \ - } \ - MZ_MACRO_END - -tinfl_status tinfl_decompress(tinfl_decompressor *r, - const mz_uint8 *pIn_buf_next, - size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, - mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, - const mz_uint32 decomp_flags) { - static const int s_length_base[31] = { - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - static const int s_length_extra[31] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, - 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, - 4, 4, 5, 5, 5, 5, 0, 0, 0}; - static const int s_dist_base[32] = { - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, - 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, - 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0}; - static const int s_dist_extra[32] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, - 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, - 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; - static const mz_uint8 s_length_dezigzag[19] = { - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - static const int s_min_table_sizes[3] = {257, 1, 4}; - - tinfl_status status = TINFL_STATUS_FAILED; - mz_uint32 num_bits, dist, counter, num_extra; - tinfl_bit_buf_t bit_buf; - const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = - pIn_buf_next + *pIn_buf_size; - mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = - pOut_buf_next + *pOut_buf_size; - size_t out_buf_size_mask = - (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) - ? (size_t)-1 - : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, - dist_from_out_buf_start; - - // Ensure the output buffer's size is a power of 2, unless the output buffer - // is large enough to hold the entire output file (in which case it doesn't - // matter). - if (((out_buf_size_mask + 1) & out_buf_size_mask) || - (pOut_buf_next < pOut_buf_start)) { - *pIn_buf_size = *pOut_buf_size = 0; - return TINFL_STATUS_BAD_PARAM; - } - - num_bits = r->m_num_bits; - bit_buf = r->m_bit_buf; - dist = r->m_dist; - counter = r->m_counter; - num_extra = r->m_num_extra; - dist_from_out_buf_start = r->m_dist_from_out_buf_start; - TINFL_CR_BEGIN - - bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0; - r->m_z_adler32 = r->m_check_adler32 = 1; - if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) { - TINFL_GET_BYTE(1, r->m_zhdr0); - TINFL_GET_BYTE(2, r->m_zhdr1); - counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || - (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8)); - if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) - counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || - ((out_buf_size_mask + 1) < - (size_t)(1ULL << (8U + (r->m_zhdr0 >> 4))))); - if (counter) { - TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED); - } - } - - do { - TINFL_GET_BITS(3, r->m_final, 3); - r->m_type = r->m_final >> 1; - if (r->m_type == 0) { - TINFL_SKIP_BITS(5, num_bits & 7); - for (counter = 0; counter < 4; ++counter) { - if (num_bits) - TINFL_GET_BITS(6, r->m_raw_header[counter], 8); - else - TINFL_GET_BYTE(7, r->m_raw_header[counter]); - } - if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != - (mz_uint)(0xFFFF ^ - (r->m_raw_header[2] | (r->m_raw_header[3] << 8)))) { - TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED); - } - while ((counter) && (num_bits)) { - TINFL_GET_BITS(51, dist, 8); - while (pOut_buf_cur >= pOut_buf_end) { - TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT); - } - *pOut_buf_cur++ = (mz_uint8)dist; - counter--; - } - while (counter) { - size_t n; - while (pOut_buf_cur >= pOut_buf_end) { - TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT); - } - while (pIn_buf_cur >= pIn_buf_end) { - if (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) { - TINFL_CR_RETURN(38, TINFL_STATUS_NEEDS_MORE_INPUT); - } else { - TINFL_CR_RETURN_FOREVER(40, TINFL_STATUS_FAILED); - } - } - n = MZ_MIN(MZ_MIN((size_t)(pOut_buf_end - pOut_buf_cur), - (size_t)(pIn_buf_end - pIn_buf_cur)), - counter); - TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n); - pIn_buf_cur += n; - pOut_buf_cur += n; - counter -= (mz_uint)n; - } - } else if (r->m_type == 3) { - TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED); - } else { - if (r->m_type == 1) { - mz_uint8 *p = r->m_tables[0].m_code_size; - mz_uint i; - r->m_table_sizes[0] = 288; - r->m_table_sizes[1] = 32; - TINFL_MEMSET(r->m_tables[1].m_code_size, 5, 32); - for (i = 0; i <= 143; ++i) *p++ = 8; - for (; i <= 255; ++i) *p++ = 9; - for (; i <= 279; ++i) *p++ = 7; - for (; i <= 287; ++i) *p++ = 8; - } else { - for (counter = 0; counter < 3; counter++) { - TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]); - r->m_table_sizes[counter] += s_min_table_sizes[counter]; - } - MZ_CLEAR_OBJ(r->m_tables[2].m_code_size); - for (counter = 0; counter < r->m_table_sizes[2]; counter++) { - mz_uint s; - TINFL_GET_BITS(14, s, 3); - r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (mz_uint8)s; - } - r->m_table_sizes[2] = 19; - } - for (; (int)r->m_type >= 0; r->m_type--) { - int tree_next, tree_cur; - tinfl_huff_table *pTable; - mz_uint i, j, used_syms, total, sym_index, next_code[17], - total_syms[16]; - pTable = &r->m_tables[r->m_type]; - MZ_CLEAR_OBJ(total_syms); - MZ_CLEAR_OBJ(pTable->m_look_up); - MZ_CLEAR_OBJ(pTable->m_tree); - for (i = 0; i < r->m_table_sizes[r->m_type]; ++i) - total_syms[pTable->m_code_size[i]]++; - used_syms = 0, total = 0; - next_code[0] = next_code[1] = 0; - for (i = 1; i <= 15; ++i) { - used_syms += total_syms[i]; - next_code[i + 1] = (total = ((total + total_syms[i]) << 1)); - } - if ((65536 != total) && (used_syms > 1)) { - TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED); - } - for (tree_next = -1, sym_index = 0; - sym_index < r->m_table_sizes[r->m_type]; ++sym_index) { - mz_uint rev_code = 0, l, cur_code, - code_size = pTable->m_code_size[sym_index]; - if (!code_size) continue; - cur_code = next_code[code_size]++; - for (l = code_size; l > 0; l--, cur_code >>= 1) - rev_code = (rev_code << 1) | (cur_code & 1); - if (code_size <= TINFL_FAST_LOOKUP_BITS) { - mz_int16 k = (mz_int16)((code_size << 9) | sym_index); - while (rev_code < TINFL_FAST_LOOKUP_SIZE) { - pTable->m_look_up[rev_code] = k; - rev_code += (1 << code_size); - } - continue; - } - if (0 == - (tree_cur = pTable->m_look_up[rev_code & - (TINFL_FAST_LOOKUP_SIZE - 1)])) { - pTable->m_look_up[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] = - (mz_int16)tree_next; - tree_cur = tree_next; - tree_next -= 2; - } - rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1); - for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--) { - tree_cur -= ((rev_code >>= 1) & 1); - if (!pTable->m_tree[-tree_cur - 1]) { - pTable->m_tree[-tree_cur - 1] = (mz_int16)tree_next; - tree_cur = tree_next; - tree_next -= 2; - } else - tree_cur = pTable->m_tree[-tree_cur - 1]; - } - tree_cur -= ((rev_code >>= 1) & 1); - pTable->m_tree[-tree_cur - 1] = (mz_int16)sym_index; - } - if (r->m_type == 2) { - for (counter = 0; - counter < (r->m_table_sizes[0] + r->m_table_sizes[1]);) { - mz_uint s; - TINFL_HUFF_DECODE(16, dist, &r->m_tables[2]); - if (dist < 16) { - r->m_len_codes[counter++] = (mz_uint8)dist; - continue; - } - if ((dist == 16) && (!counter)) { - TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED); - } - num_extra = "\02\03\07"[dist - 16]; - TINFL_GET_BITS(18, s, num_extra); - s += "\03\03\013"[dist - 16]; - TINFL_MEMSET(r->m_len_codes + counter, - (dist == 16) ? r->m_len_codes[counter - 1] : 0, s); - counter += s; - } - if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter) { - TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED); - } - TINFL_MEMCPY(r->m_tables[0].m_code_size, r->m_len_codes, - r->m_table_sizes[0]); - TINFL_MEMCPY(r->m_tables[1].m_code_size, - r->m_len_codes + r->m_table_sizes[0], - r->m_table_sizes[1]); - } - } - for (;;) { - mz_uint8 *pSrc; - for (;;) { - if (((pIn_buf_end - pIn_buf_cur) < 4) || - ((pOut_buf_end - pOut_buf_cur) < 2)) { - TINFL_HUFF_DECODE(23, counter, &r->m_tables[0]); - if (counter >= 256) break; - while (pOut_buf_cur >= pOut_buf_end) { - TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT); - } - *pOut_buf_cur++ = (mz_uint8)counter; - } else { - int sym2; - mz_uint code_len; -#if TINFL_USE_64BIT_BITBUF - if (num_bits < 30) { - bit_buf |= - (((tinfl_bit_buf_t)MZ_READ_LE32(pIn_buf_cur)) << num_bits); - pIn_buf_cur += 4; - num_bits += 32; - } -#else - if (num_bits < 15) { - bit_buf |= - (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); - pIn_buf_cur += 2; - num_bits += 16; - } -#endif - if ((sym2 = - r->m_tables[0] - .m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= - 0) - code_len = sym2 >> 9; - else { - code_len = TINFL_FAST_LOOKUP_BITS; - do { - sym2 = r->m_tables[0] - .m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; - } while (sym2 < 0); - } - counter = sym2; - bit_buf >>= code_len; - num_bits -= code_len; - if (counter & 256) break; - -#if !TINFL_USE_64BIT_BITBUF - if (num_bits < 15) { - bit_buf |= - (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); - pIn_buf_cur += 2; - num_bits += 16; - } -#endif - if ((sym2 = - r->m_tables[0] - .m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= - 0) - code_len = sym2 >> 9; - else { - code_len = TINFL_FAST_LOOKUP_BITS; - do { - sym2 = r->m_tables[0] - .m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; - } while (sym2 < 0); - } - bit_buf >>= code_len; - num_bits -= code_len; - - pOut_buf_cur[0] = (mz_uint8)counter; - if (sym2 & 256) { - pOut_buf_cur++; - counter = sym2; - break; - } - pOut_buf_cur[1] = (mz_uint8)sym2; - pOut_buf_cur += 2; - } - } - if ((counter &= 511) == 256) break; - - num_extra = s_length_extra[counter - 257]; - counter = s_length_base[counter - 257]; - if (num_extra) { - mz_uint extra_bits; - TINFL_GET_BITS(25, extra_bits, num_extra); - counter += extra_bits; - } - - TINFL_HUFF_DECODE(26, dist, &r->m_tables[1]); - num_extra = s_dist_extra[dist]; - dist = s_dist_base[dist]; - if (num_extra) { - mz_uint extra_bits; - TINFL_GET_BITS(27, extra_bits, num_extra); - dist += extra_bits; - } - - dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start; - if ((dist > dist_from_out_buf_start) && - (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) { - TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED); - } - - pSrc = pOut_buf_start + - ((dist_from_out_buf_start - dist) & out_buf_size_mask); - - if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end) { - while (counter--) { - while (pOut_buf_cur >= pOut_buf_end) { - TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT); - } - *pOut_buf_cur++ = - pOut_buf_start[(dist_from_out_buf_start++ - dist) & - out_buf_size_mask]; - } - continue; - } -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES - else if ((counter >= 9) && (counter <= dist)) { - const mz_uint8 *pSrc_end = pSrc + (counter & ~7); - do { - ((mz_uint32 *)pOut_buf_cur)[0] = ((const mz_uint32 *)pSrc)[0]; - ((mz_uint32 *)pOut_buf_cur)[1] = ((const mz_uint32 *)pSrc)[1]; - pOut_buf_cur += 8; - } while ((pSrc += 8) < pSrc_end); - if ((counter &= 7) < 3) { - if (counter) { - pOut_buf_cur[0] = pSrc[0]; - if (counter > 1) pOut_buf_cur[1] = pSrc[1]; - pOut_buf_cur += counter; - } - continue; - } - } -#endif - do { - pOut_buf_cur[0] = pSrc[0]; - pOut_buf_cur[1] = pSrc[1]; - pOut_buf_cur[2] = pSrc[2]; - pOut_buf_cur += 3; - pSrc += 3; - } while ((int)(counter -= 3) > 2); - if ((int)counter > 0) { - pOut_buf_cur[0] = pSrc[0]; - if ((int)counter > 1) pOut_buf_cur[1] = pSrc[1]; - pOut_buf_cur += counter; - } - } - } - } while (!(r->m_final & 1)); - if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) { - TINFL_SKIP_BITS(32, num_bits & 7); - for (counter = 0; counter < 4; ++counter) { - mz_uint s; - if (num_bits) - TINFL_GET_BITS(41, s, 8); - else - TINFL_GET_BYTE(42, s); - r->m_z_adler32 = (r->m_z_adler32 << 8) | s; - } - } - TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE); - TINFL_CR_FINISH - -common_exit: - r->m_num_bits = num_bits; - r->m_bit_buf = bit_buf; - r->m_dist = dist; - r->m_counter = counter; - r->m_num_extra = num_extra; - r->m_dist_from_out_buf_start = dist_from_out_buf_start; - *pIn_buf_size = pIn_buf_cur - pIn_buf_next; - *pOut_buf_size = pOut_buf_cur - pOut_buf_next; - if ((decomp_flags & - (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && - (status >= 0)) { - const mz_uint8 *ptr = pOut_buf_next; - size_t buf_len = *pOut_buf_size; - mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, - s2 = r->m_check_adler32 >> 16; - size_t block_len = buf_len % 5552; - while (buf_len) { - for (i = 0; i + 7 < block_len; i += 8, ptr += 8) { - s1 += ptr[0], s2 += s1; - s1 += ptr[1], s2 += s1; - s1 += ptr[2], s2 += s1; - s1 += ptr[3], s2 += s1; - s1 += ptr[4], s2 += s1; - s1 += ptr[5], s2 += s1; - s1 += ptr[6], s2 += s1; - s1 += ptr[7], s2 += s1; - } - for (; i < block_len; ++i) s1 += *ptr++, s2 += s1; - s1 %= 65521U, s2 %= 65521U; - buf_len -= block_len; - block_len = 5552; - } - r->m_check_adler32 = (s2 << 16) + s1; - if ((status == TINFL_STATUS_DONE) && - (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && - (r->m_check_adler32 != r->m_z_adler32)) - status = TINFL_STATUS_ADLER32_MISMATCH; - } - return status; -} - -// Higher level helper functions. -void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, - size_t *pOut_len, int flags) { - tinfl_decompressor decomp; - void *pBuf = NULL, *pNew_buf; - size_t src_buf_ofs = 0, out_buf_capacity = 0; - *pOut_len = 0; - tinfl_init(&decomp); - for (;;) { - size_t src_buf_size = src_buf_len - src_buf_ofs, - dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity; - tinfl_status status = tinfl_decompress( - &decomp, (const mz_uint8 *)pSrc_buf + src_buf_ofs, &src_buf_size, - (mz_uint8 *)pBuf, pBuf ? (mz_uint8 *)pBuf + *pOut_len : NULL, - &dst_buf_size, - (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | - TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF); - if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT)) { - MZ_FREE(pBuf); - *pOut_len = 0; - return NULL; - } - src_buf_ofs += src_buf_size; - *pOut_len += dst_buf_size; - if (status == TINFL_STATUS_DONE) break; - new_out_buf_capacity = out_buf_capacity * 2; - if (new_out_buf_capacity < 128) new_out_buf_capacity = 128; - pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity); - if (!pNew_buf) { - MZ_FREE(pBuf); - *pOut_len = 0; - return NULL; - } - pBuf = pNew_buf; - out_buf_capacity = new_out_buf_capacity; - } - return pBuf; -} - -size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, - const void *pSrc_buf, size_t src_buf_len, - int flags) { - tinfl_decompressor decomp; - tinfl_status status; - tinfl_init(&decomp); - status = - tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf, &src_buf_len, - (mz_uint8 *)pOut_buf, (mz_uint8 *)pOut_buf, &out_buf_len, - (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | - TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF); - return (status != TINFL_STATUS_DONE) ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED - : out_buf_len; -} - -int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, - tinfl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags) { - int result = 0; - tinfl_decompressor decomp; - mz_uint8 *pDict = (mz_uint8 *)MZ_MALLOC(TINFL_LZ_DICT_SIZE); - size_t in_buf_ofs = 0, dict_ofs = 0; - if (!pDict) return TINFL_STATUS_FAILED; - tinfl_init(&decomp); - for (;;) { - size_t in_buf_size = *pIn_buf_size - in_buf_ofs, - dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs; - tinfl_status status = - tinfl_decompress(&decomp, (const mz_uint8 *)pIn_buf + in_buf_ofs, - &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size, - (flags & ~(TINFL_FLAG_HAS_MORE_INPUT | - TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))); - in_buf_ofs += in_buf_size; - if ((dst_buf_size) && - (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user))) - break; - if (status != TINFL_STATUS_HAS_MORE_OUTPUT) { - result = (status == TINFL_STATUS_DONE); - break; - } - dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1); - } - MZ_FREE(pDict); - *pIn_buf_size = in_buf_ofs; - return result; -} - -// ------------------- Low-level Compression (independent from all decompression -// API's) - -// Purposely making these tables static for faster init and thread safety. -static const mz_uint16 s_tdefl_len_sym[256] = { - 257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267, 267, 268, - 268, 269, 269, 269, 269, 270, 270, 270, 270, 271, 271, 271, 271, 272, 272, - 272, 272, 273, 273, 273, 273, 273, 273, 273, 273, 274, 274, 274, 274, 274, - 274, 274, 274, 275, 275, 275, 275, 275, 275, 275, 275, 276, 276, 276, 276, - 276, 276, 276, 276, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, - 277, 277, 277, 277, 277, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, - 278, 278, 278, 278, 278, 278, 279, 279, 279, 279, 279, 279, 279, 279, 279, - 279, 279, 279, 279, 279, 279, 279, 280, 280, 280, 280, 280, 280, 280, 280, - 280, 280, 280, 280, 280, 280, 280, 280, 281, 281, 281, 281, 281, 281, 281, - 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, - 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 282, 282, 282, 282, 282, - 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, - 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 283, 283, 283, - 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, - 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 284, - 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, - 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, - 285}; - -static const mz_uint8 s_tdefl_len_extra[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0}; - -static const mz_uint8 s_tdefl_small_dist_sym[512] = { - 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, - 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, - 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, - 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, - 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, - 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, - 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, - 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, - 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, - 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, - 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, - 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17}; - -static const mz_uint8 s_tdefl_small_dist_extra[512] = { - 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7}; - -static const mz_uint8 s_tdefl_large_dist_sym[128] = { - 0, 0, 18, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, - 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, - 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, - 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, - 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, - 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, - 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29}; - -static const mz_uint8 s_tdefl_large_dist_extra[128] = { - 0, 0, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, - 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, - 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, - 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, - 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, - 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, - 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13}; - -// Radix sorts tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr to sorted -// values. -typedef struct { - mz_uint16 m_key, m_sym_index; -} tdefl_sym_freq; -static tdefl_sym_freq *tdefl_radix_sort_syms(mz_uint num_syms, - tdefl_sym_freq *pSyms0, - tdefl_sym_freq *pSyms1) { - mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2]; - tdefl_sym_freq *pCur_syms = pSyms0, *pNew_syms = pSyms1; - MZ_CLEAR_OBJ(hist); - for (i = 0; i < num_syms; i++) { - mz_uint freq = pSyms0[i].m_key; - hist[freq & 0xFF]++; - hist[256 + ((freq >> 8) & 0xFF)]++; - } - while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256])) - total_passes--; - for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8) { - const mz_uint32 *pHist = &hist[pass << 8]; - mz_uint offsets[256], cur_ofs = 0; - for (i = 0; i < 256; i++) { - offsets[i] = cur_ofs; - cur_ofs += pHist[i]; - } - for (i = 0; i < num_syms; i++) - pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = - pCur_syms[i]; - { - tdefl_sym_freq *t = pCur_syms; - pCur_syms = pNew_syms; - pNew_syms = t; - } - } - return pCur_syms; -} - -// tdefl_calculate_minimum_redundancy() originally written by: Alistair Moffat, -// alistair@cs.mu.oz.au, Jyrki Katajainen, jyrki@diku.dk, November 1996. -static void tdefl_calculate_minimum_redundancy(tdefl_sym_freq *A, int n) { - int root, leaf, next, avbl, used, dpth; - if (n == 0) - return; - else if (n == 1) { - A[0].m_key = 1; - return; - } - A[0].m_key += A[1].m_key; - root = 0; - leaf = 2; - for (next = 1; next < n - 1; next++) { - if (leaf >= n || A[root].m_key < A[leaf].m_key) { - A[next].m_key = A[root].m_key; - A[root++].m_key = (mz_uint16)next; - } else - A[next].m_key = A[leaf++].m_key; - if (leaf >= n || (root < next && A[root].m_key < A[leaf].m_key)) { - A[next].m_key = (mz_uint16)(A[next].m_key + A[root].m_key); - A[root++].m_key = (mz_uint16)next; - } else - A[next].m_key = (mz_uint16)(A[next].m_key + A[leaf++].m_key); - } - A[n - 2].m_key = 0; - for (next = n - 3; next >= 0; next--) - A[next].m_key = A[A[next].m_key].m_key + 1; - avbl = 1; - used = dpth = 0; - root = n - 2; - next = n - 1; - while (avbl > 0) { - while (root >= 0 && (int)A[root].m_key == dpth) { - used++; - root--; - } - while (avbl > used) { - A[next--].m_key = (mz_uint16)(dpth); - avbl--; - } - avbl = 2 * used; - dpth++; - used = 0; - } -} - -// Limits canonical Huffman code table's max code size. -enum { TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32 }; -static void tdefl_huffman_enforce_max_code_size(int *pNum_codes, - int code_list_len, - int max_code_size) { - int i; - mz_uint32 total = 0; - if (code_list_len <= 1) return; - for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE; i++) - pNum_codes[max_code_size] += pNum_codes[i]; - for (i = max_code_size; i > 0; i--) - total += (((mz_uint32)pNum_codes[i]) << (max_code_size - i)); - while (total != (1UL << max_code_size)) { - pNum_codes[max_code_size]--; - for (i = max_code_size - 1; i > 0; i--) - if (pNum_codes[i]) { - pNum_codes[i]--; - pNum_codes[i + 1] += 2; - break; - } - total--; - } -} - -static void tdefl_optimize_huffman_table(tdefl_compressor *d, int table_num, - int table_len, int code_size_limit, - int static_table) { - int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE]; - mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1]; - MZ_CLEAR_OBJ(num_codes); - if (static_table) { - for (i = 0; i < table_len; i++) - num_codes[d->m_huff_code_sizes[table_num][i]]++; - } else { - tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS], syms1[TDEFL_MAX_HUFF_SYMBOLS], - *pSyms; - int num_used_syms = 0; - const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0]; - for (i = 0; i < table_len; i++) - if (pSym_count[i]) { - syms0[num_used_syms].m_key = (mz_uint16)pSym_count[i]; - syms0[num_used_syms++].m_sym_index = (mz_uint16)i; - } - - pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1); - tdefl_calculate_minimum_redundancy(pSyms, num_used_syms); - - for (i = 0; i < num_used_syms; i++) num_codes[pSyms[i].m_key]++; - - tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, - code_size_limit); - - MZ_CLEAR_OBJ(d->m_huff_code_sizes[table_num]); - MZ_CLEAR_OBJ(d->m_huff_codes[table_num]); - for (i = 1, j = num_used_syms; i <= code_size_limit; i++) - for (l = num_codes[i]; l > 0; l--) - d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (mz_uint8)(i); - } - - next_code[1] = 0; - for (j = 0, i = 2; i <= code_size_limit; i++) - next_code[i] = j = ((j + num_codes[i - 1]) << 1); - - for (i = 0; i < table_len; i++) { - mz_uint rev_code = 0, code, code_size; - if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0) continue; - code = next_code[code_size]++; - for (l = code_size; l > 0; l--, code >>= 1) - rev_code = (rev_code << 1) | (code & 1); - d->m_huff_codes[table_num][i] = (mz_uint16)rev_code; - } -} - -#define TDEFL_PUT_BITS(b, l) \ - do { \ - mz_uint bits = b; \ - mz_uint len = l; \ - MZ_ASSERT(bits <= ((1U << len) - 1U)); \ - d->m_bit_buffer |= (bits << d->m_bits_in); \ - d->m_bits_in += len; \ - while (d->m_bits_in >= 8) { \ - if (d->m_pOutput_buf < d->m_pOutput_buf_end) \ - *d->m_pOutput_buf++ = (mz_uint8)(d->m_bit_buffer); \ - d->m_bit_buffer >>= 8; \ - d->m_bits_in -= 8; \ - } \ - } \ - MZ_MACRO_END - -#define TDEFL_RLE_PREV_CODE_SIZE() \ - { \ - if (rle_repeat_count) { \ - if (rle_repeat_count < 3) { \ - d->m_huff_count[2][prev_code_size] = (mz_uint16)( \ - d->m_huff_count[2][prev_code_size] + rle_repeat_count); \ - while (rle_repeat_count--) \ - packed_code_sizes[num_packed_code_sizes++] = prev_code_size; \ - } else { \ - d->m_huff_count[2][16] = (mz_uint16)(d->m_huff_count[2][16] + 1); \ - packed_code_sizes[num_packed_code_sizes++] = 16; \ - packed_code_sizes[num_packed_code_sizes++] = \ - (mz_uint8)(rle_repeat_count - 3); \ - } \ - rle_repeat_count = 0; \ - } \ - } - -#define TDEFL_RLE_ZERO_CODE_SIZE() \ - { \ - if (rle_z_count) { \ - if (rle_z_count < 3) { \ - d->m_huff_count[2][0] = \ - (mz_uint16)(d->m_huff_count[2][0] + rle_z_count); \ - while (rle_z_count--) packed_code_sizes[num_packed_code_sizes++] = 0; \ - } else if (rle_z_count <= 10) { \ - d->m_huff_count[2][17] = (mz_uint16)(d->m_huff_count[2][17] + 1); \ - packed_code_sizes[num_packed_code_sizes++] = 17; \ - packed_code_sizes[num_packed_code_sizes++] = \ - (mz_uint8)(rle_z_count - 3); \ - } else { \ - d->m_huff_count[2][18] = (mz_uint16)(d->m_huff_count[2][18] + 1); \ - packed_code_sizes[num_packed_code_sizes++] = 18; \ - packed_code_sizes[num_packed_code_sizes++] = \ - (mz_uint8)(rle_z_count - 11); \ - } \ - rle_z_count = 0; \ - } \ - } - -static mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = { - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - -static void tdefl_start_dynamic_block(tdefl_compressor *d) { - int num_lit_codes, num_dist_codes, num_bit_lengths; - mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, - rle_repeat_count, packed_code_sizes_index; - mz_uint8 - code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], - packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], - prev_code_size = 0xFF; - - d->m_huff_count[0][256] = 1; - - tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15, MZ_FALSE); - tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15, MZ_FALSE); - - for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--) - if (d->m_huff_code_sizes[0][num_lit_codes - 1]) break; - for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--) - if (d->m_huff_code_sizes[1][num_dist_codes - 1]) break; - - memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes); - memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], - num_dist_codes); - total_code_sizes_to_pack = num_lit_codes + num_dist_codes; - num_packed_code_sizes = 0; - rle_z_count = 0; - rle_repeat_count = 0; - - memset(&d->m_huff_count[2][0], 0, - sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2); - for (i = 0; i < total_code_sizes_to_pack; i++) { - mz_uint8 code_size = code_sizes_to_pack[i]; - if (!code_size) { - TDEFL_RLE_PREV_CODE_SIZE(); - if (++rle_z_count == 138) { - TDEFL_RLE_ZERO_CODE_SIZE(); - } - } else { - TDEFL_RLE_ZERO_CODE_SIZE(); - if (code_size != prev_code_size) { - TDEFL_RLE_PREV_CODE_SIZE(); - d->m_huff_count[2][code_size] = - (mz_uint16)(d->m_huff_count[2][code_size] + 1); - packed_code_sizes[num_packed_code_sizes++] = code_size; - } else if (++rle_repeat_count == 6) { - TDEFL_RLE_PREV_CODE_SIZE(); - } - } - prev_code_size = code_size; - } - if (rle_repeat_count) { - TDEFL_RLE_PREV_CODE_SIZE(); - } else { - TDEFL_RLE_ZERO_CODE_SIZE(); - } - - tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7, MZ_FALSE); - - TDEFL_PUT_BITS(2, 2); - - TDEFL_PUT_BITS(num_lit_codes - 257, 5); - TDEFL_PUT_BITS(num_dist_codes - 1, 5); - - for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--) - if (d->m_huff_code_sizes - [2][s_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]]) - break; - num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1)); - TDEFL_PUT_BITS(num_bit_lengths - 4, 4); - for (i = 0; (int)i < num_bit_lengths; i++) - TDEFL_PUT_BITS( - d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[i]], 3); - - for (packed_code_sizes_index = 0; - packed_code_sizes_index < num_packed_code_sizes;) { - mz_uint code = packed_code_sizes[packed_code_sizes_index++]; - MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2); - TDEFL_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]); - if (code >= 16) - TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], - "\02\03\07"[code - 16]); - } -} - -static void tdefl_start_static_block(tdefl_compressor *d) { - mz_uint i; - mz_uint8 *p = &d->m_huff_code_sizes[0][0]; - - for (i = 0; i <= 143; ++i) *p++ = 8; - for (; i <= 255; ++i) *p++ = 9; - for (; i <= 279; ++i) *p++ = 7; - for (; i <= 287; ++i) *p++ = 8; - - memset(d->m_huff_code_sizes[1], 5, 32); - - tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE); - tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE); - - TDEFL_PUT_BITS(1, 2); -} - -static const mz_uint mz_bitmasks[17] = { - 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, - 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF}; - -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && \ - MINIZ_HAS_64BIT_REGISTERS -static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) { - mz_uint flags; - mz_uint8 *pLZ_codes; - mz_uint8 *pOutput_buf = d->m_pOutput_buf; - mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf; - mz_uint64 bit_buffer = d->m_bit_buffer; - mz_uint bits_in = d->m_bits_in; - -#define TDEFL_PUT_BITS_FAST(b, l) \ - { \ - bit_buffer |= (((mz_uint64)(b)) << bits_in); \ - bits_in += (l); \ - } - - flags = 1; - for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end; - flags >>= 1) { - if (flags == 1) flags = *pLZ_codes++ | 0x100; - - if (flags & 1) { - mz_uint s0, s1, n0, n1, sym, num_extra_bits; - mz_uint match_len = pLZ_codes[0], - match_dist = *(const mz_uint16 *)(pLZ_codes + 1); - pLZ_codes += 3; - - MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); - TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], - d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); - TDEFL_PUT_BITS_FAST(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], - s_tdefl_len_extra[match_len]); - - // This sequence coaxes MSVC into using cmov's vs. jmp's. - s0 = s_tdefl_small_dist_sym[match_dist & 511]; - n0 = s_tdefl_small_dist_extra[match_dist & 511]; - s1 = s_tdefl_large_dist_sym[match_dist >> 8]; - n1 = s_tdefl_large_dist_extra[match_dist >> 8]; - sym = (match_dist < 512) ? s0 : s1; - num_extra_bits = (match_dist < 512) ? n0 : n1; - - MZ_ASSERT(d->m_huff_code_sizes[1][sym]); - TDEFL_PUT_BITS_FAST(d->m_huff_codes[1][sym], - d->m_huff_code_sizes[1][sym]); - TDEFL_PUT_BITS_FAST(match_dist & mz_bitmasks[num_extra_bits], - num_extra_bits); - } else { - mz_uint lit = *pLZ_codes++; - MZ_ASSERT(d->m_huff_code_sizes[0][lit]); - TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], - d->m_huff_code_sizes[0][lit]); - - if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) { - flags >>= 1; - lit = *pLZ_codes++; - MZ_ASSERT(d->m_huff_code_sizes[0][lit]); - TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], - d->m_huff_code_sizes[0][lit]); - - if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) { - flags >>= 1; - lit = *pLZ_codes++; - MZ_ASSERT(d->m_huff_code_sizes[0][lit]); - TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], - d->m_huff_code_sizes[0][lit]); - } - } - } - - if (pOutput_buf >= d->m_pOutput_buf_end) return MZ_FALSE; - - *(mz_uint64 *)pOutput_buf = bit_buffer; - pOutput_buf += (bits_in >> 3); - bit_buffer >>= (bits_in & ~7); - bits_in &= 7; - } - -#undef TDEFL_PUT_BITS_FAST - - d->m_pOutput_buf = pOutput_buf; - d->m_bits_in = 0; - d->m_bit_buffer = 0; - - while (bits_in) { - mz_uint32 n = MZ_MIN(bits_in, 16); - TDEFL_PUT_BITS((mz_uint)bit_buffer & mz_bitmasks[n], n); - bit_buffer >>= n; - bits_in -= n; - } - - TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]); - - return (d->m_pOutput_buf < d->m_pOutput_buf_end); -} -#else -static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) { - mz_uint flags; - mz_uint8 *pLZ_codes; - - flags = 1; - for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; - flags >>= 1) { - if (flags == 1) flags = *pLZ_codes++ | 0x100; - if (flags & 1) { - mz_uint sym, num_extra_bits; - mz_uint match_len = pLZ_codes[0], - match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8)); - pLZ_codes += 3; - - MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); - TDEFL_PUT_BITS(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], - d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); - TDEFL_PUT_BITS(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], - s_tdefl_len_extra[match_len]); - - if (match_dist < 512) { - sym = s_tdefl_small_dist_sym[match_dist]; - num_extra_bits = s_tdefl_small_dist_extra[match_dist]; - } else { - sym = s_tdefl_large_dist_sym[match_dist >> 8]; - num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8]; - } - MZ_ASSERT(d->m_huff_code_sizes[1][sym]); - TDEFL_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]); - TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits); - } else { - mz_uint lit = *pLZ_codes++; - MZ_ASSERT(d->m_huff_code_sizes[0][lit]); - TDEFL_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]); - } - } - - TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]); - - return (d->m_pOutput_buf < d->m_pOutput_buf_end); -} -#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && - // MINIZ_HAS_64BIT_REGISTERS - -static mz_bool tdefl_compress_block(tdefl_compressor *d, mz_bool static_block) { - if (static_block) - tdefl_start_static_block(d); - else - tdefl_start_dynamic_block(d); - return tdefl_compress_lz_codes(d); -} - -static int tdefl_flush_block(tdefl_compressor *d, int flush) { - mz_uint saved_bit_buf, saved_bits_in; - mz_uint8 *pSaved_output_buf; - mz_bool comp_block_succeeded = MZ_FALSE; - int n, use_raw_block = - ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) != 0) && - (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size; - mz_uint8 *pOutput_buf_start = - ((d->m_pPut_buf_func == NULL) && - ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= TDEFL_OUT_BUF_SIZE)) - ? ((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) - : d->m_output_buf; - - d->m_pOutput_buf = pOutput_buf_start; - d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16; - - MZ_ASSERT(!d->m_output_flush_remaining); - d->m_output_flush_ofs = 0; - d->m_output_flush_remaining = 0; - - *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left); - d->m_pLZ_code_buf -= (d->m_num_flags_left == 8); - - if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index)) { - TDEFL_PUT_BITS(0x78, 8); - TDEFL_PUT_BITS(0x01, 8); - } - - TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1); - - pSaved_output_buf = d->m_pOutput_buf; - saved_bit_buf = d->m_bit_buffer; - saved_bits_in = d->m_bits_in; - - if (!use_raw_block) - comp_block_succeeded = - tdefl_compress_block(d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) || - (d->m_total_lz_bytes < 48)); - - // If the block gets expanded, forget the current contents of the output - // buffer and send a raw block instead. - if (((use_raw_block) || - ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= - d->m_total_lz_bytes))) && - ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size)) { - mz_uint i; - d->m_pOutput_buf = pSaved_output_buf; - d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in; - TDEFL_PUT_BITS(0, 2); - if (d->m_bits_in) { - TDEFL_PUT_BITS(0, 8 - d->m_bits_in); - } - for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF) { - TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16); - } - for (i = 0; i < d->m_total_lz_bytes; ++i) { - TDEFL_PUT_BITS( - d->m_dict[(d->m_lz_code_buf_dict_pos + i) & TDEFL_LZ_DICT_SIZE_MASK], - 8); - } - } - // Check for the extremely unlikely (if not impossible) case of the compressed - // block not fitting into the output buffer when using dynamic codes. - else if (!comp_block_succeeded) { - d->m_pOutput_buf = pSaved_output_buf; - d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in; - tdefl_compress_block(d, MZ_TRUE); - } - - if (flush) { - if (flush == TDEFL_FINISH) { - if (d->m_bits_in) { - TDEFL_PUT_BITS(0, 8 - d->m_bits_in); - } - if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER) { - mz_uint i, a = d->m_adler32; - for (i = 0; i < 4; i++) { - TDEFL_PUT_BITS((a >> 24) & 0xFF, 8); - a <<= 8; - } - } - } else { - mz_uint i, z = 0; - TDEFL_PUT_BITS(0, 3); - if (d->m_bits_in) { - TDEFL_PUT_BITS(0, 8 - d->m_bits_in); - } - for (i = 2; i; --i, z ^= 0xFFFF) { - TDEFL_PUT_BITS(z & 0xFFFF, 16); - } - } - } - - MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end); - - memset(&d->m_huff_count[0][0], 0, - sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0); - memset(&d->m_huff_count[1][0], 0, - sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1); - - d->m_pLZ_code_buf = d->m_lz_code_buf + 1; - d->m_pLZ_flags = d->m_lz_code_buf; - d->m_num_flags_left = 8; - d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes; - d->m_total_lz_bytes = 0; - d->m_block_index++; - - if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0) { - if (d->m_pPut_buf_func) { - *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf; - if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user)) - return (d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED); - } else if (pOutput_buf_start == d->m_output_buf) { - int bytes_to_copy = (int)MZ_MIN( - (size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs)); - memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, - bytes_to_copy); - d->m_out_buf_ofs += bytes_to_copy; - if ((n -= bytes_to_copy) != 0) { - d->m_output_flush_ofs = bytes_to_copy; - d->m_output_flush_remaining = n; - } - } else { - d->m_out_buf_ofs += n; - } - } - - return d->m_output_flush_remaining; -} - -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES -#define TDEFL_READ_UNALIGNED_WORD(p) *(const mz_uint16 *)(p) -static MZ_FORCEINLINE void tdefl_find_match( - tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, - mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len) { - mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, - match_len = *pMatch_len, probe_pos = pos, next_probe_pos, - probe_len; - mz_uint num_probes_left = d->m_max_probes[match_len >= 32]; - const mz_uint16 *s = (const mz_uint16 *)(d->m_dict + pos), *p, *q; - mz_uint16 c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]), - s01 = TDEFL_READ_UNALIGNED_WORD(s); - MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); - if (max_match_len <= match_len) return; - for (;;) { - for (;;) { - if (--num_probes_left == 0) return; -#define TDEFL_PROBE \ - next_probe_pos = d->m_next[probe_pos]; \ - if ((!next_probe_pos) || \ - ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) \ - return; \ - probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \ - if (TDEFL_READ_UNALIGNED_WORD(&d->m_dict[probe_pos + match_len - 1]) == c01) \ - break; - TDEFL_PROBE; - TDEFL_PROBE; - TDEFL_PROBE; - } - if (!dist) break; - q = (const mz_uint16 *)(d->m_dict + probe_pos); - if (TDEFL_READ_UNALIGNED_WORD(q) != s01) continue; - p = s; - probe_len = 32; - do { - } while ( - (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && - (--probe_len > 0)); - if (!probe_len) { - *pMatch_dist = dist; - *pMatch_len = MZ_MIN(max_match_len, TDEFL_MAX_MATCH_LEN); - break; - } else if ((probe_len = ((mz_uint)(p - s) * 2) + - (mz_uint)(*(const mz_uint8 *)p == - *(const mz_uint8 *)q)) > match_len) { - *pMatch_dist = dist; - if ((*pMatch_len = match_len = MZ_MIN(max_match_len, probe_len)) == - max_match_len) - break; - c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]); - } - } -} -#else -static MZ_FORCEINLINE void tdefl_find_match( - tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, - mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len) { - mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, - match_len = *pMatch_len, probe_pos = pos, next_probe_pos, - probe_len; - mz_uint num_probes_left = d->m_max_probes[match_len >= 32]; - const mz_uint8 *s = d->m_dict + pos, *p, *q; - mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1]; - MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); - if (max_match_len <= match_len) return; - for (;;) { - for (;;) { - if (--num_probes_left == 0) return; -#define TDEFL_PROBE \ - next_probe_pos = d->m_next[probe_pos]; \ - if ((!next_probe_pos) || \ - ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) \ - return; \ - probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \ - if ((d->m_dict[probe_pos + match_len] == c0) && \ - (d->m_dict[probe_pos + match_len - 1] == c1)) \ - break; - TDEFL_PROBE; - TDEFL_PROBE; - TDEFL_PROBE; - } - if (!dist) break; - p = s; - q = d->m_dict + probe_pos; - for (probe_len = 0; probe_len < max_match_len; probe_len++) - if (*p++ != *q++) break; - if (probe_len > match_len) { - *pMatch_dist = dist; - if ((*pMatch_len = match_len = probe_len) == max_match_len) return; - c0 = d->m_dict[pos + match_len]; - c1 = d->m_dict[pos + match_len - 1]; - } - } -} -#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES - -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN -static mz_bool tdefl_compress_fast(tdefl_compressor *d) { - // Faster, minimally featured LZRW1-style match+parse loop with better - // register utilization. Intended for applications where raw throughput is - // valued more highly than ratio. - mz_uint lookahead_pos = d->m_lookahead_pos, - lookahead_size = d->m_lookahead_size, dict_size = d->m_dict_size, - total_lz_bytes = d->m_total_lz_bytes, - num_flags_left = d->m_num_flags_left; - mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf, *pLZ_flags = d->m_pLZ_flags; - mz_uint cur_pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK; - - while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size))) { - const mz_uint TDEFL_COMP_FAST_LOOKAHEAD_SIZE = 4096; - mz_uint dst_pos = - (lookahead_pos + lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK; - mz_uint num_bytes_to_process = (mz_uint)MZ_MIN( - d->m_src_buf_left, TDEFL_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size); - d->m_src_buf_left -= num_bytes_to_process; - lookahead_size += num_bytes_to_process; - - while (num_bytes_to_process) { - mz_uint32 n = MZ_MIN(TDEFL_LZ_DICT_SIZE - dst_pos, num_bytes_to_process); - memcpy(d->m_dict + dst_pos, d->m_pSrc, n); - if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) - memcpy(d->m_dict + TDEFL_LZ_DICT_SIZE + dst_pos, d->m_pSrc, - MZ_MIN(n, (TDEFL_MAX_MATCH_LEN - 1) - dst_pos)); - d->m_pSrc += n; - dst_pos = (dst_pos + n) & TDEFL_LZ_DICT_SIZE_MASK; - num_bytes_to_process -= n; - } - - dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - lookahead_size, dict_size); - if ((!d->m_flush) && (lookahead_size < TDEFL_COMP_FAST_LOOKAHEAD_SIZE)) - break; - - while (lookahead_size >= 4) { - mz_uint cur_match_dist, cur_match_len = 1; - mz_uint8 *pCur_dict = d->m_dict + cur_pos; - mz_uint first_trigram = (*(const mz_uint32 *)pCur_dict) & 0xFFFFFF; - mz_uint hash = - (first_trigram ^ (first_trigram >> (24 - (TDEFL_LZ_HASH_BITS - 8)))) & - TDEFL_LEVEL1_HASH_SIZE_MASK; - mz_uint probe_pos = d->m_hash[hash]; - d->m_hash[hash] = (mz_uint16)lookahead_pos; - - if (((cur_match_dist = (mz_uint16)(lookahead_pos - probe_pos)) <= - dict_size) && - ((*(const mz_uint32 *)(d->m_dict + - (probe_pos &= TDEFL_LZ_DICT_SIZE_MASK)) & - 0xFFFFFF) == first_trigram)) { - const mz_uint16 *p = (const mz_uint16 *)pCur_dict; - const mz_uint16 *q = (const mz_uint16 *)(d->m_dict + probe_pos); - mz_uint32 probe_len = 32; - do { - } while ((TDEFL_READ_UNALIGNED_WORD(++p) == - TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == - TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == - TDEFL_READ_UNALIGNED_WORD(++q)) && - (TDEFL_READ_UNALIGNED_WORD(++p) == - TDEFL_READ_UNALIGNED_WORD(++q)) && - (--probe_len > 0)); - cur_match_len = ((mz_uint)(p - (const mz_uint16 *)pCur_dict) * 2) + - (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q); - if (!probe_len) - cur_match_len = cur_match_dist ? TDEFL_MAX_MATCH_LEN : 0; - - if ((cur_match_len < TDEFL_MIN_MATCH_LEN) || - ((cur_match_len == TDEFL_MIN_MATCH_LEN) && - (cur_match_dist >= 8U * 1024U))) { - cur_match_len = 1; - *pLZ_code_buf++ = (mz_uint8)first_trigram; - *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); - d->m_huff_count[0][(mz_uint8)first_trigram]++; - } else { - mz_uint32 s0, s1; - cur_match_len = MZ_MIN(cur_match_len, lookahead_size); - - MZ_ASSERT((cur_match_len >= TDEFL_MIN_MATCH_LEN) && - (cur_match_dist >= 1) && - (cur_match_dist <= TDEFL_LZ_DICT_SIZE)); - - cur_match_dist--; - - pLZ_code_buf[0] = (mz_uint8)(cur_match_len - TDEFL_MIN_MATCH_LEN); - *(mz_uint16 *)(&pLZ_code_buf[1]) = (mz_uint16)cur_match_dist; - pLZ_code_buf += 3; - *pLZ_flags = (mz_uint8)((*pLZ_flags >> 1) | 0x80); - - s0 = s_tdefl_small_dist_sym[cur_match_dist & 511]; - s1 = s_tdefl_large_dist_sym[cur_match_dist >> 8]; - d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++; - - d->m_huff_count[0][s_tdefl_len_sym[cur_match_len - - TDEFL_MIN_MATCH_LEN]]++; - } - } else { - *pLZ_code_buf++ = (mz_uint8)first_trigram; - *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); - d->m_huff_count[0][(mz_uint8)first_trigram]++; - } - - if (--num_flags_left == 0) { - num_flags_left = 8; - pLZ_flags = pLZ_code_buf++; - } - - total_lz_bytes += cur_match_len; - lookahead_pos += cur_match_len; - dict_size = MZ_MIN(dict_size + cur_match_len, TDEFL_LZ_DICT_SIZE); - cur_pos = (cur_pos + cur_match_len) & TDEFL_LZ_DICT_SIZE_MASK; - MZ_ASSERT(lookahead_size >= cur_match_len); - lookahead_size -= cur_match_len; - - if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) { - int n; - d->m_lookahead_pos = lookahead_pos; - d->m_lookahead_size = lookahead_size; - d->m_dict_size = dict_size; - d->m_total_lz_bytes = total_lz_bytes; - d->m_pLZ_code_buf = pLZ_code_buf; - d->m_pLZ_flags = pLZ_flags; - d->m_num_flags_left = num_flags_left; - if ((n = tdefl_flush_block(d, 0)) != 0) - return (n < 0) ? MZ_FALSE : MZ_TRUE; - total_lz_bytes = d->m_total_lz_bytes; - pLZ_code_buf = d->m_pLZ_code_buf; - pLZ_flags = d->m_pLZ_flags; - num_flags_left = d->m_num_flags_left; - } - } - - while (lookahead_size) { - mz_uint8 lit = d->m_dict[cur_pos]; - - total_lz_bytes++; - *pLZ_code_buf++ = lit; - *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); - if (--num_flags_left == 0) { - num_flags_left = 8; - pLZ_flags = pLZ_code_buf++; - } - - d->m_huff_count[0][lit]++; - - lookahead_pos++; - dict_size = MZ_MIN(dict_size + 1, TDEFL_LZ_DICT_SIZE); - cur_pos = (cur_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK; - lookahead_size--; - - if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) { - int n; - d->m_lookahead_pos = lookahead_pos; - d->m_lookahead_size = lookahead_size; - d->m_dict_size = dict_size; - d->m_total_lz_bytes = total_lz_bytes; - d->m_pLZ_code_buf = pLZ_code_buf; - d->m_pLZ_flags = pLZ_flags; - d->m_num_flags_left = num_flags_left; - if ((n = tdefl_flush_block(d, 0)) != 0) - return (n < 0) ? MZ_FALSE : MZ_TRUE; - total_lz_bytes = d->m_total_lz_bytes; - pLZ_code_buf = d->m_pLZ_code_buf; - pLZ_flags = d->m_pLZ_flags; - num_flags_left = d->m_num_flags_left; - } - } - } - - d->m_lookahead_pos = lookahead_pos; - d->m_lookahead_size = lookahead_size; - d->m_dict_size = dict_size; - d->m_total_lz_bytes = total_lz_bytes; - d->m_pLZ_code_buf = pLZ_code_buf; - d->m_pLZ_flags = pLZ_flags; - d->m_num_flags_left = num_flags_left; - return MZ_TRUE; -} -#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN - -static MZ_FORCEINLINE void tdefl_record_literal(tdefl_compressor *d, - mz_uint8 lit) { - d->m_total_lz_bytes++; - *d->m_pLZ_code_buf++ = lit; - *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> 1); - if (--d->m_num_flags_left == 0) { - d->m_num_flags_left = 8; - d->m_pLZ_flags = d->m_pLZ_code_buf++; - } - d->m_huff_count[0][lit]++; -} - -static MZ_FORCEINLINE void tdefl_record_match(tdefl_compressor *d, - mz_uint match_len, - mz_uint match_dist) { - mz_uint32 s0, s1; - - MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) && - (match_dist <= TDEFL_LZ_DICT_SIZE)); - - d->m_total_lz_bytes += match_len; - - d->m_pLZ_code_buf[0] = (mz_uint8)(match_len - TDEFL_MIN_MATCH_LEN); - - match_dist -= 1; - d->m_pLZ_code_buf[1] = (mz_uint8)(match_dist & 0xFF); - d->m_pLZ_code_buf[2] = (mz_uint8)(match_dist >> 8); - d->m_pLZ_code_buf += 3; - - *d->m_pLZ_flags = (mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80); - if (--d->m_num_flags_left == 0) { - d->m_num_flags_left = 8; - d->m_pLZ_flags = d->m_pLZ_code_buf++; - } - - s0 = s_tdefl_small_dist_sym[match_dist & 511]; - s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127]; - d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++; - - if (match_len >= TDEFL_MIN_MATCH_LEN) - d->m_huff_count[0][s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++; -} - -static mz_bool tdefl_compress_normal(tdefl_compressor *d) { - const mz_uint8 *pSrc = d->m_pSrc; - size_t src_buf_left = d->m_src_buf_left; - tdefl_flush flush = d->m_flush; - - while ((src_buf_left) || ((flush) && (d->m_lookahead_size))) { - mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos; - // Update dictionary and hash chains. Keeps the lookahead size equal to - // TDEFL_MAX_MATCH_LEN. - if ((d->m_lookahead_size + d->m_dict_size) >= (TDEFL_MIN_MATCH_LEN - 1)) { - mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & - TDEFL_LZ_DICT_SIZE_MASK, - ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2; - mz_uint hash = (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] - << TDEFL_LZ_HASH_SHIFT) ^ - d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK]; - mz_uint num_bytes_to_process = (mz_uint)MZ_MIN( - src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size); - const mz_uint8 *pSrc_end = pSrc + num_bytes_to_process; - src_buf_left -= num_bytes_to_process; - d->m_lookahead_size += num_bytes_to_process; - while (pSrc != pSrc_end) { - mz_uint8 c = *pSrc++; - d->m_dict[dst_pos] = c; - if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) - d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c; - hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1); - d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; - d->m_hash[hash] = (mz_uint16)(ins_pos); - dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK; - ins_pos++; - } - } else { - while ((src_buf_left) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN)) { - mz_uint8 c = *pSrc++; - mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & - TDEFL_LZ_DICT_SIZE_MASK; - src_buf_left--; - d->m_dict[dst_pos] = c; - if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) - d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c; - if ((++d->m_lookahead_size + d->m_dict_size) >= TDEFL_MIN_MATCH_LEN) { - mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2; - mz_uint hash = ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] - << (TDEFL_LZ_HASH_SHIFT * 2)) ^ - (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK] - << TDEFL_LZ_HASH_SHIFT) ^ - c) & - (TDEFL_LZ_HASH_SIZE - 1); - d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; - d->m_hash[hash] = (mz_uint16)(ins_pos); - } - } - } - d->m_dict_size = - MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size); - if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN)) break; - - // Simple lazy/greedy parsing state machine. - len_to_move = 1; - cur_match_dist = 0; - cur_match_len = - d->m_saved_match_len ? d->m_saved_match_len : (TDEFL_MIN_MATCH_LEN - 1); - cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK; - if (d->m_flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS)) { - if ((d->m_dict_size) && (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))) { - mz_uint8 c = d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK]; - cur_match_len = 0; - while (cur_match_len < d->m_lookahead_size) { - if (d->m_dict[cur_pos + cur_match_len] != c) break; - cur_match_len++; - } - if (cur_match_len < TDEFL_MIN_MATCH_LEN) - cur_match_len = 0; - else - cur_match_dist = 1; - } - } else { - tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, - d->m_lookahead_size, &cur_match_dist, &cur_match_len); - } - if (((cur_match_len == TDEFL_MIN_MATCH_LEN) && - (cur_match_dist >= 8U * 1024U)) || - (cur_pos == cur_match_dist) || - ((d->m_flags & TDEFL_FILTER_MATCHES) && (cur_match_len <= 5))) { - cur_match_dist = cur_match_len = 0; - } - if (d->m_saved_match_len) { - if (cur_match_len > d->m_saved_match_len) { - tdefl_record_literal(d, (mz_uint8)d->m_saved_lit); - if (cur_match_len >= 128) { - tdefl_record_match(d, cur_match_len, cur_match_dist); - d->m_saved_match_len = 0; - len_to_move = cur_match_len; - } else { - d->m_saved_lit = d->m_dict[cur_pos]; - d->m_saved_match_dist = cur_match_dist; - d->m_saved_match_len = cur_match_len; - } - } else { - tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist); - len_to_move = d->m_saved_match_len - 1; - d->m_saved_match_len = 0; - } - } else if (!cur_match_dist) - tdefl_record_literal(d, - d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]); - else if ((d->m_greedy_parsing) || (d->m_flags & TDEFL_RLE_MATCHES) || - (cur_match_len >= 128)) { - tdefl_record_match(d, cur_match_len, cur_match_dist); - len_to_move = cur_match_len; - } else { - d->m_saved_lit = d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]; - d->m_saved_match_dist = cur_match_dist; - d->m_saved_match_len = cur_match_len; - } - // Move the lookahead forward by len_to_move bytes. - d->m_lookahead_pos += len_to_move; - MZ_ASSERT(d->m_lookahead_size >= len_to_move); - d->m_lookahead_size -= len_to_move; - d->m_dict_size = - MZ_MIN(d->m_dict_size + len_to_move, (mz_uint)TDEFL_LZ_DICT_SIZE); - // Check if it's time to flush the current LZ codes to the internal output - // buffer. - if ((d->m_pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) || - ((d->m_total_lz_bytes > 31 * 1024) && - (((((mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= - d->m_total_lz_bytes) || - (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))) { - int n; - d->m_pSrc = pSrc; - d->m_src_buf_left = src_buf_left; - if ((n = tdefl_flush_block(d, 0)) != 0) - return (n < 0) ? MZ_FALSE : MZ_TRUE; - } - } - - d->m_pSrc = pSrc; - d->m_src_buf_left = src_buf_left; - return MZ_TRUE; -} - -static tdefl_status tdefl_flush_output_buffer(tdefl_compressor *d) { - if (d->m_pIn_buf_size) { - *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf; - } - - if (d->m_pOut_buf_size) { - size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, - d->m_output_flush_remaining); - memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, - d->m_output_buf + d->m_output_flush_ofs, n); - d->m_output_flush_ofs += (mz_uint)n; - d->m_output_flush_remaining -= (mz_uint)n; - d->m_out_buf_ofs += n; - - *d->m_pOut_buf_size = d->m_out_buf_ofs; - } - - return (d->m_finished && !d->m_output_flush_remaining) ? TDEFL_STATUS_DONE - : TDEFL_STATUS_OKAY; -} - -tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, - size_t *pIn_buf_size, void *pOut_buf, - size_t *pOut_buf_size, tdefl_flush flush) { - if (!d) { - if (pIn_buf_size) *pIn_buf_size = 0; - if (pOut_buf_size) *pOut_buf_size = 0; - return TDEFL_STATUS_BAD_PARAM; - } - - d->m_pIn_buf = pIn_buf; - d->m_pIn_buf_size = pIn_buf_size; - d->m_pOut_buf = pOut_buf; - d->m_pOut_buf_size = pOut_buf_size; - d->m_pSrc = (const mz_uint8 *)(pIn_buf); - d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0; - d->m_out_buf_ofs = 0; - d->m_flush = flush; - - if (((d->m_pPut_buf_func != NULL) == - ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || - (d->m_prev_return_status != TDEFL_STATUS_OKAY) || - (d->m_wants_to_finish && (flush != TDEFL_FINISH)) || - (pIn_buf_size && *pIn_buf_size && !pIn_buf) || - (pOut_buf_size && *pOut_buf_size && !pOut_buf)) { - if (pIn_buf_size) *pIn_buf_size = 0; - if (pOut_buf_size) *pOut_buf_size = 0; - return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM); - } - d->m_wants_to_finish |= (flush == TDEFL_FINISH); - - if ((d->m_output_flush_remaining) || (d->m_finished)) - return (d->m_prev_return_status = tdefl_flush_output_buffer(d)); - -#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN - if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) && - ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) && - ((d->m_flags & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | - TDEFL_RLE_MATCHES)) == 0)) { - if (!tdefl_compress_fast(d)) return d->m_prev_return_status; - } else -#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN - { - if (!tdefl_compress_normal(d)) return d->m_prev_return_status; - } - - if ((d->m_flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) && - (pIn_buf)) - d->m_adler32 = - (mz_uint32)mz_adler32(d->m_adler32, (const mz_uint8 *)pIn_buf, - d->m_pSrc - (const mz_uint8 *)pIn_buf); - - if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && - (!d->m_output_flush_remaining)) { - if (tdefl_flush_block(d, flush) < 0) return d->m_prev_return_status; - d->m_finished = (flush == TDEFL_FINISH); - if (flush == TDEFL_FULL_FLUSH) { - MZ_CLEAR_OBJ(d->m_hash); - MZ_CLEAR_OBJ(d->m_next); - d->m_dict_size = 0; - } - } - - return (d->m_prev_return_status = tdefl_flush_output_buffer(d)); -} - -tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, - size_t in_buf_size, tdefl_flush flush) { - MZ_ASSERT(d->m_pPut_buf_func); - return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush); -} - -tdefl_status tdefl_init(tdefl_compressor *d, - tdefl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags) { - d->m_pPut_buf_func = pPut_buf_func; - d->m_pPut_buf_user = pPut_buf_user; - d->m_flags = (mz_uint)(flags); - d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3; - d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0; - d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3; - if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG)) MZ_CLEAR_OBJ(d->m_hash); - d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = - d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0; - d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = - d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0; - d->m_pLZ_code_buf = d->m_lz_code_buf + 1; - d->m_pLZ_flags = d->m_lz_code_buf; - d->m_num_flags_left = 8; - d->m_pOutput_buf = d->m_output_buf; - d->m_pOutput_buf_end = d->m_output_buf; - d->m_prev_return_status = TDEFL_STATUS_OKAY; - d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0; - d->m_adler32 = 1; - d->m_pIn_buf = NULL; - d->m_pOut_buf = NULL; - d->m_pIn_buf_size = NULL; - d->m_pOut_buf_size = NULL; - d->m_flush = TDEFL_NO_FLUSH; - d->m_pSrc = NULL; - d->m_src_buf_left = 0; - d->m_out_buf_ofs = 0; - memset(&d->m_huff_count[0][0], 0, - sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0); - memset(&d->m_huff_count[1][0], 0, - sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1); - return TDEFL_STATUS_OKAY; -} - -tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d) { - return d->m_prev_return_status; -} - -mz_uint32 tdefl_get_adler32(tdefl_compressor *d) { return d->m_adler32; } - -mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, - tdefl_put_buf_func_ptr pPut_buf_func, - void *pPut_buf_user, int flags) { - tdefl_compressor *pComp; - mz_bool succeeded; - if (((buf_len) && (!pBuf)) || (!pPut_buf_func)) return MZ_FALSE; - pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); - if (!pComp) return MZ_FALSE; - succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == - TDEFL_STATUS_OKAY); - succeeded = - succeeded && (tdefl_compress_buffer(pComp, pBuf, buf_len, TDEFL_FINISH) == - TDEFL_STATUS_DONE); - MZ_FREE(pComp); - return succeeded; -} - -typedef struct { - size_t m_size, m_capacity; - mz_uint8 *m_pBuf; - mz_bool m_expandable; -} tdefl_output_buffer; - -static mz_bool tdefl_output_buffer_putter(const void *pBuf, int len, - void *pUser) { - tdefl_output_buffer *p = (tdefl_output_buffer *)pUser; - size_t new_size = p->m_size + len; - if (new_size > p->m_capacity) { - size_t new_capacity = p->m_capacity; - mz_uint8 *pNew_buf; - if (!p->m_expandable) return MZ_FALSE; - do { - new_capacity = MZ_MAX(128U, new_capacity << 1U); - } while (new_size > new_capacity); - pNew_buf = (mz_uint8 *)MZ_REALLOC(p->m_pBuf, new_capacity); - if (!pNew_buf) return MZ_FALSE; - p->m_pBuf = pNew_buf; - p->m_capacity = new_capacity; - } - memcpy((mz_uint8 *)p->m_pBuf + p->m_size, pBuf, len); - p->m_size = new_size; - return MZ_TRUE; -} - -void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, - size_t *pOut_len, int flags) { - tdefl_output_buffer out_buf; - MZ_CLEAR_OBJ(out_buf); - if (!pOut_len) - return MZ_FALSE; - else - *pOut_len = 0; - out_buf.m_expandable = MZ_TRUE; - if (!tdefl_compress_mem_to_output( - pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) - return NULL; - *pOut_len = out_buf.m_size; - return out_buf.m_pBuf; -} - -size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, - const void *pSrc_buf, size_t src_buf_len, - int flags) { - tdefl_output_buffer out_buf; - MZ_CLEAR_OBJ(out_buf); - if (!pOut_buf) return 0; - out_buf.m_pBuf = (mz_uint8 *)pOut_buf; - out_buf.m_capacity = out_buf_len; - if (!tdefl_compress_mem_to_output( - pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) - return 0; - return out_buf.m_size; -} - -#ifndef MINIZ_NO_ZLIB_APIS -static const mz_uint s_tdefl_num_probes[11] = {0, 1, 6, 32, 16, 32, - 128, 256, 512, 768, 1500}; - -// level may actually range from [0,10] (10 is a "hidden" max level, where we -// want a bit more compression and it's fine if throughput to fall off a cliff -// on some files). -mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, - int strategy) { - mz_uint comp_flags = - s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level) : MZ_DEFAULT_LEVEL] | - ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0); - if (window_bits > 0) comp_flags |= TDEFL_WRITE_ZLIB_HEADER; - - if (!level) - comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS; - else if (strategy == MZ_FILTERED) - comp_flags |= TDEFL_FILTER_MATCHES; - else if (strategy == MZ_HUFFMAN_ONLY) - comp_flags &= ~TDEFL_MAX_PROBES_MASK; - else if (strategy == MZ_FIXED) - comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS; - else if (strategy == MZ_RLE) - comp_flags |= TDEFL_RLE_MATCHES; - - return comp_flags; -} -#endif // MINIZ_NO_ZLIB_APIS - -#ifdef _MSC_VER -#pragma warning(push) -#pragma warning(disable : 4204) // nonstandard extension used : non-constant - // aggregate initializer (also supported by GNU - // C and C99, so no big deal) -#pragma warning(disable : 4244) // 'initializing': conversion from '__int64' to - // 'int', possible loss of data -#pragma warning(disable : 4267) // 'argument': conversion from '__int64' to - // 'int', possible loss of data -#pragma warning(disable : 4996) // 'strdup': The POSIX name for this item is - // deprecated. Instead, use the ISO C and C++ - // conformant name: _strdup. -#endif - -// Simple PNG writer function by Alex Evans, 2011. Released into the public -// domain: https://gist.github.com/908299, more context at -// http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/. -// This is actually a modification of Alex's original code so PNG files -// generated by this function pass pngcheck. -void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, - int h, int num_chans, - size_t *pLen_out, - mz_uint level, mz_bool flip) { - // Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was - // defined. - static const mz_uint s_tdefl_png_num_probes[11] = { - 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500}; - tdefl_compressor *pComp = - (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); - tdefl_output_buffer out_buf; - int i, bpl = w * num_chans, y, z; - mz_uint32 c; - *pLen_out = 0; - if (!pComp) return NULL; - MZ_CLEAR_OBJ(out_buf); - out_buf.m_expandable = MZ_TRUE; - out_buf.m_capacity = 57 + MZ_MAX(64, (1 + bpl) * h); - if (NULL == (out_buf.m_pBuf = (mz_uint8 *)MZ_MALLOC(out_buf.m_capacity))) { - MZ_FREE(pComp); - return NULL; - } - // write dummy header - for (z = 41; z; --z) tdefl_output_buffer_putter(&z, 1, &out_buf); - // compress image data - tdefl_init( - pComp, tdefl_output_buffer_putter, &out_buf, - s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER); - for (y = 0; y < h; ++y) { - tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); - tdefl_compress_buffer(pComp, - (mz_uint8 *)pImage + (flip ? (h - 1 - y) : y) * bpl, - bpl, TDEFL_NO_FLUSH); - } - if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != - TDEFL_STATUS_DONE) { - MZ_FREE(pComp); - MZ_FREE(out_buf.m_pBuf); - return NULL; - } - // write real header - *pLen_out = out_buf.m_size - 41; - { - static const mz_uint8 chans[] = {0x00, 0x00, 0x04, 0x02, 0x06}; - mz_uint8 pnghdr[41] = {0x89, - 0x50, - 0x4e, - 0x47, - 0x0d, - 0x0a, - 0x1a, - 0x0a, - 0x00, - 0x00, - 0x00, - 0x0d, - 0x49, - 0x48, - 0x44, - 0x52, - 0, - 0, - (mz_uint8)(w >> 8), - (mz_uint8)w, - 0, - 0, - (mz_uint8)(h >> 8), - (mz_uint8)h, - 8, - chans[num_chans], - 0, - 0, - 0, - 0, - 0, - 0, - 0, - (mz_uint8)(*pLen_out >> 24), - (mz_uint8)(*pLen_out >> 16), - (mz_uint8)(*pLen_out >> 8), - (mz_uint8)*pLen_out, - 0x49, - 0x44, - 0x41, - 0x54}; - c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, pnghdr + 12, 17); - for (i = 0; i < 4; ++i, c <<= 8) - ((mz_uint8 *)(pnghdr + 29))[i] = (mz_uint8)(c >> 24); - memcpy(out_buf.m_pBuf, pnghdr, 41); - } - // write footer (IDAT CRC-32, followed by IEND chunk) - if (!tdefl_output_buffer_putter( - "\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf)) { - *pLen_out = 0; - MZ_FREE(pComp); - MZ_FREE(out_buf.m_pBuf); - return NULL; - } - c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, out_buf.m_pBuf + 41 - 4, - *pLen_out + 4); - for (i = 0; i < 4; ++i, c <<= 8) - (out_buf.m_pBuf + out_buf.m_size - 16)[i] = (mz_uint8)(c >> 24); - // compute final size of file, grab compressed data buffer and return - *pLen_out += 57; - MZ_FREE(pComp); - return out_buf.m_pBuf; -} -void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, - int num_chans, size_t *pLen_out) { - // Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or MZ_DEFAULT_LEVEL (but we - // can't depend on MZ_DEFAULT_LEVEL being available in case the zlib API's - // where #defined out) - return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, - pLen_out, 6, MZ_FALSE); -} - -// ------------------- .ZIP archive reading - -#ifndef MINIZ_NO_ARCHIVE_APIS -#error "No arvhive APIs" - -#ifdef MINIZ_NO_STDIO -#define MZ_FILE void * -#else -#include -#include - -#if defined(_MSC_VER) || defined(__MINGW64__) -static FILE *mz_fopen(const char *pFilename, const char *pMode) { - FILE *pFile = NULL; - fopen_s(&pFile, pFilename, pMode); - return pFile; -} -static FILE *mz_freopen(const char *pPath, const char *pMode, FILE *pStream) { - FILE *pFile = NULL; - if (freopen_s(&pFile, pPath, pMode, pStream)) return NULL; - return pFile; -} -#ifndef MINIZ_NO_TIME -#include -#endif -#define MZ_FILE FILE -#define MZ_FOPEN mz_fopen -#define MZ_FCLOSE fclose -#define MZ_FREAD fread -#define MZ_FWRITE fwrite -#define MZ_FTELL64 _ftelli64 -#define MZ_FSEEK64 _fseeki64 -#define MZ_FILE_STAT_STRUCT _stat -#define MZ_FILE_STAT _stat -#define MZ_FFLUSH fflush -#define MZ_FREOPEN mz_freopen -#define MZ_DELETE_FILE remove -#elif defined(__MINGW32__) -#ifndef MINIZ_NO_TIME -#include -#endif -#define MZ_FILE FILE -#define MZ_FOPEN(f, m) fopen(f, m) -#define MZ_FCLOSE fclose -#define MZ_FREAD fread -#define MZ_FWRITE fwrite -#define MZ_FTELL64 ftello64 -#define MZ_FSEEK64 fseeko64 -#define MZ_FILE_STAT_STRUCT _stat -#define MZ_FILE_STAT _stat -#define MZ_FFLUSH fflush -#define MZ_FREOPEN(f, m, s) freopen(f, m, s) -#define MZ_DELETE_FILE remove -#elif defined(__TINYC__) -#ifndef MINIZ_NO_TIME -#include -#endif -#define MZ_FILE FILE -#define MZ_FOPEN(f, m) fopen(f, m) -#define MZ_FCLOSE fclose -#define MZ_FREAD fread -#define MZ_FWRITE fwrite -#define MZ_FTELL64 ftell -#define MZ_FSEEK64 fseek -#define MZ_FILE_STAT_STRUCT stat -#define MZ_FILE_STAT stat -#define MZ_FFLUSH fflush -#define MZ_FREOPEN(f, m, s) freopen(f, m, s) -#define MZ_DELETE_FILE remove -#elif defined(__GNUC__) && defined(_LARGEFILE64_SOURCE) && _LARGEFILE64_SOURCE -#ifndef MINIZ_NO_TIME -#include -#endif -#define MZ_FILE FILE -#define MZ_FOPEN(f, m) fopen64(f, m) -#define MZ_FCLOSE fclose -#define MZ_FREAD fread -#define MZ_FWRITE fwrite -#define MZ_FTELL64 ftello64 -#define MZ_FSEEK64 fseeko64 -#define MZ_FILE_STAT_STRUCT stat64 -#define MZ_FILE_STAT stat64 -#define MZ_FFLUSH fflush -#define MZ_FREOPEN(p, m, s) freopen64(p, m, s) -#define MZ_DELETE_FILE remove -#else -#ifndef MINIZ_NO_TIME -#include -#endif -#define MZ_FILE FILE -#define MZ_FOPEN(f, m) fopen(f, m) -#define MZ_FCLOSE fclose -#define MZ_FREAD fread -#define MZ_FWRITE fwrite -#define MZ_FTELL64 ftello -#define MZ_FSEEK64 fseeko -#define MZ_FILE_STAT_STRUCT stat -#define MZ_FILE_STAT stat -#define MZ_FFLUSH fflush -#define MZ_FREOPEN(f, m, s) freopen(f, m, s) -#define MZ_DELETE_FILE remove -#endif // #ifdef _MSC_VER -#endif // #ifdef MINIZ_NO_STDIO - -#define MZ_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c)) - -// Various ZIP archive enums. To completely avoid cross platform compiler -// alignment and platform endian issues, miniz.c doesn't use structs for any of -// this stuff. -enum { - // ZIP archive identifiers and record sizes - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50, - MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50, - MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50, - MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30, - MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46, - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22, - // Central directory header record offsets - MZ_ZIP_CDH_SIG_OFS = 0, - MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4, - MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6, - MZ_ZIP_CDH_BIT_FLAG_OFS = 8, - MZ_ZIP_CDH_METHOD_OFS = 10, - MZ_ZIP_CDH_FILE_TIME_OFS = 12, - MZ_ZIP_CDH_FILE_DATE_OFS = 14, - MZ_ZIP_CDH_CRC32_OFS = 16, - MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20, - MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24, - MZ_ZIP_CDH_FILENAME_LEN_OFS = 28, - MZ_ZIP_CDH_EXTRA_LEN_OFS = 30, - MZ_ZIP_CDH_COMMENT_LEN_OFS = 32, - MZ_ZIP_CDH_DISK_START_OFS = 34, - MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36, - MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38, - MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42, - // Local directory header offsets - MZ_ZIP_LDH_SIG_OFS = 0, - MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4, - MZ_ZIP_LDH_BIT_FLAG_OFS = 6, - MZ_ZIP_LDH_METHOD_OFS = 8, - MZ_ZIP_LDH_FILE_TIME_OFS = 10, - MZ_ZIP_LDH_FILE_DATE_OFS = 12, - MZ_ZIP_LDH_CRC32_OFS = 14, - MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18, - MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22, - MZ_ZIP_LDH_FILENAME_LEN_OFS = 26, - MZ_ZIP_LDH_EXTRA_LEN_OFS = 28, - // End of central directory offsets - MZ_ZIP_ECDH_SIG_OFS = 0, - MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4, - MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6, - MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8, - MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10, - MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12, - MZ_ZIP_ECDH_CDIR_OFS_OFS = 16, - MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20, -}; - -typedef struct { - void *m_p; - size_t m_size, m_capacity; - mz_uint m_element_size; -} mz_zip_array; - -struct mz_zip_internal_state_tag { - mz_zip_array m_central_dir; - mz_zip_array m_central_dir_offsets; - mz_zip_array m_sorted_central_dir_offsets; - MZ_FILE *m_pFile; - void *m_pMem; - size_t m_mem_size; - size_t m_mem_capacity; -}; - -#define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) \ - (array_ptr)->m_element_size = element_size -#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) \ - ((element_type *)((array_ptr)->m_p))[index] - -static MZ_FORCEINLINE void mz_zip_array_clear(mz_zip_archive *pZip, - mz_zip_array *pArray) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p); - memset(pArray, 0, sizeof(mz_zip_array)); -} - -static mz_bool mz_zip_array_ensure_capacity(mz_zip_archive *pZip, - mz_zip_array *pArray, - size_t min_new_capacity, - mz_uint growing) { - void *pNew_p; - size_t new_capacity = min_new_capacity; - MZ_ASSERT(pArray->m_element_size); - if (pArray->m_capacity >= min_new_capacity) return MZ_TRUE; - if (growing) { - new_capacity = MZ_MAX(1, pArray->m_capacity); - while (new_capacity < min_new_capacity) new_capacity *= 2; - } - if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, - pArray->m_element_size, new_capacity))) - return MZ_FALSE; - pArray->m_p = pNew_p; - pArray->m_capacity = new_capacity; - return MZ_TRUE; -} - -static MZ_FORCEINLINE mz_bool mz_zip_array_reserve(mz_zip_archive *pZip, - mz_zip_array *pArray, - size_t new_capacity, - mz_uint growing) { - if (new_capacity > pArray->m_capacity) { - if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing)) - return MZ_FALSE; - } - return MZ_TRUE; -} - -static MZ_FORCEINLINE mz_bool mz_zip_array_resize(mz_zip_archive *pZip, - mz_zip_array *pArray, - size_t new_size, - mz_uint growing) { - if (new_size > pArray->m_capacity) { - if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing)) - return MZ_FALSE; - } - pArray->m_size = new_size; - return MZ_TRUE; -} - -static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room(mz_zip_archive *pZip, - mz_zip_array *pArray, - size_t n) { - return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, MZ_TRUE); -} - -static MZ_FORCEINLINE mz_bool mz_zip_array_push_back(mz_zip_archive *pZip, - mz_zip_array *pArray, - const void *pElements, - size_t n) { - size_t orig_size = pArray->m_size; - if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE)) - return MZ_FALSE; - memcpy((mz_uint8 *)pArray->m_p + orig_size * pArray->m_element_size, - pElements, n * pArray->m_element_size); - return MZ_TRUE; -} - -#ifndef MINIZ_NO_TIME -static time_t mz_zip_dos_to_time_t(int dos_time, int dos_date) { - struct tm tm; - memset(&tm, 0, sizeof(tm)); - tm.tm_isdst = -1; - tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900; - tm.tm_mon = ((dos_date >> 5) & 15) - 1; - tm.tm_mday = dos_date & 31; - tm.tm_hour = (dos_time >> 11) & 31; - tm.tm_min = (dos_time >> 5) & 63; - tm.tm_sec = (dos_time << 1) & 62; - return mktime(&tm); -} - -static void mz_zip_time_to_dos_time(time_t time, mz_uint16 *pDOS_time, - mz_uint16 *pDOS_date) { -#ifdef _MSC_VER - struct tm tm_struct; - struct tm *tm = &tm_struct; - errno_t err = localtime_s(tm, &time); - if (err) { - *pDOS_date = 0; - *pDOS_time = 0; - return; - } -#else - struct tm *tm = localtime(&time); -#endif - *pDOS_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + - ((tm->tm_sec) >> 1)); - *pDOS_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + - ((tm->tm_mon + 1) << 5) + tm->tm_mday); -} -#endif - -#ifndef MINIZ_NO_STDIO -static mz_bool mz_zip_get_file_modified_time(const char *pFilename, - mz_uint16 *pDOS_time, - mz_uint16 *pDOS_date) { -#ifdef MINIZ_NO_TIME - (void)pFilename; - *pDOS_date = *pDOS_time = 0; -#else - struct MZ_FILE_STAT_STRUCT file_stat; - // On Linux with x86 glibc, this call will fail on large files (>= 0x80000000 - // bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh. - if (MZ_FILE_STAT(pFilename, &file_stat) != 0) return MZ_FALSE; - mz_zip_time_to_dos_time(file_stat.st_mtime, pDOS_time, pDOS_date); -#endif // #ifdef MINIZ_NO_TIME - return MZ_TRUE; -} - -#ifndef MINIZ_NO_TIME -static mz_bool mz_zip_set_file_times(const char *pFilename, time_t access_time, - time_t modified_time) { - struct utimbuf t; - t.actime = access_time; - t.modtime = modified_time; - return !utime(pFilename, &t); -} -#endif // #ifndef MINIZ_NO_TIME -#endif // #ifndef MINIZ_NO_STDIO - -static mz_bool mz_zip_reader_init_internal(mz_zip_archive *pZip, - mz_uint32 flags) { - (void)flags; - if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID)) - return MZ_FALSE; - - if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func; - if (!pZip->m_pFree) pZip->m_pFree = def_free_func; - if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func; - - pZip->m_zip_mode = MZ_ZIP_MODE_READING; - pZip->m_archive_size = 0; - pZip->m_central_directory_file_ofs = 0; - pZip->m_total_files = 0; - - if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state)))) - return MZ_FALSE; - memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, - sizeof(mz_uint8)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, - sizeof(mz_uint32)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, - sizeof(mz_uint32)); - return MZ_TRUE; -} - -static MZ_FORCEINLINE mz_bool -mz_zip_reader_filename_less(const mz_zip_array *pCentral_dir_array, - const mz_zip_array *pCentral_dir_offsets, - mz_uint l_index, mz_uint r_index) { - const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT( - pCentral_dir_array, mz_uint8, - MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, - l_index)), - *pE; - const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT( - pCentral_dir_array, mz_uint8, - MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index)); - mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS), - r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS); - mz_uint8 l = 0, r = 0; - pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; - pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; - pE = pL + MZ_MIN(l_len, r_len); - while (pL < pE) { - if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR))) break; - pL++; - pR++; - } - return (pL == pE) ? (l_len < r_len) : (l < r); -} - -#define MZ_SWAP_UINT32(a, b) \ - do { \ - mz_uint32 t = a; \ - a = b; \ - b = t; \ - } \ - MZ_MACRO_END - -// Heap sort of lowercased filenames, used to help accelerate plain central -// directory searches by mz_zip_reader_locate_file(). (Could also use qsort(), -// but it could allocate memory.) -static void mz_zip_reader_sort_central_dir_offsets_by_filename( - mz_zip_archive *pZip) { - mz_zip_internal_state *pState = pZip->m_pState; - const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets; - const mz_zip_array *pCentral_dir = &pState->m_central_dir; - mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT( - &pState->m_sorted_central_dir_offsets, mz_uint32, 0); - const int size = pZip->m_total_files; - int start = (size - 2) >> 1, end; - while (start >= 0) { - int child, root = start; - for (;;) { - if ((child = (root << 1) + 1) >= size) break; - child += - (((child + 1) < size) && - (mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, - pIndices[child], pIndices[child + 1]))); - if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, - pIndices[root], pIndices[child])) - break; - MZ_SWAP_UINT32(pIndices[root], pIndices[child]); - root = child; - } - start--; - } - - end = size - 1; - while (end > 0) { - int child, root = 0; - MZ_SWAP_UINT32(pIndices[end], pIndices[0]); - for (;;) { - if ((child = (root << 1) + 1) >= end) break; - child += - (((child + 1) < end) && - mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, - pIndices[child], pIndices[child + 1])); - if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, - pIndices[root], pIndices[child])) - break; - MZ_SWAP_UINT32(pIndices[root], pIndices[child]); - root = child; - } - end--; - } -} - -static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip, - mz_uint32 flags) { - mz_uint cdir_size, num_this_disk, cdir_disk_index; - mz_uint64 cdir_ofs; - mz_int64 cur_file_ofs; - const mz_uint8 *p; - mz_uint32 buf_u32[4096 / sizeof(mz_uint32)]; - mz_uint8 *pBuf = (mz_uint8 *)buf_u32; - mz_bool sort_central_dir = - ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0); - // Basic sanity checks - reject files which are too small, and check the first - // 4 bytes of the file to make sure a local header is there. - if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) - return MZ_FALSE; - // Find the end of central directory record by scanning the file from the end - // towards the beginning. - cur_file_ofs = - MZ_MAX((mz_int64)pZip->m_archive_size - (mz_int64)sizeof(buf_u32), 0); - for (;;) { - int i, - n = (int)MZ_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs); - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (mz_uint)n) - return MZ_FALSE; - for (i = n - 4; i >= 0; --i) - if (MZ_READ_LE32(pBuf + i) == MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG) break; - if (i >= 0) { - cur_file_ofs += i; - break; - } - if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= - (0xFFFF + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE))) - return MZ_FALSE; - cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0); - } - // Read and verify the end of central directory record. - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) - return MZ_FALSE; - if ((MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) != - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG) || - ((pZip->m_total_files = - MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS)) != - MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS))) - return MZ_FALSE; - - num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS); - cdir_disk_index = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS); - if (((num_this_disk | cdir_disk_index) != 0) && - ((num_this_disk != 1) || (cdir_disk_index != 1))) - return MZ_FALSE; - - if ((cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS)) < - pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) - return MZ_FALSE; - - cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS); - if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size) return MZ_FALSE; - - pZip->m_central_directory_file_ofs = cdir_ofs; - - if (pZip->m_total_files) { - mz_uint i, n; - - // Read the entire central directory into a heap block, and allocate another - // heap block to hold the unsorted central dir file record offsets, and - // another to hold the sorted indices. - if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, - MZ_FALSE)) || - (!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, - pZip->m_total_files, MZ_FALSE))) - return MZ_FALSE; - - if (sort_central_dir) { - if (!mz_zip_array_resize(pZip, - &pZip->m_pState->m_sorted_central_dir_offsets, - pZip->m_total_files, MZ_FALSE)) - return MZ_FALSE; - } - - if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, - pZip->m_pState->m_central_dir.m_p, - cdir_size) != cdir_size) - return MZ_FALSE; - - // Now create an index into the central directory file records, do some - // basic sanity checking on each record, and check for zip64 entries (which - // are not yet supported). - p = (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p; - for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i) { - mz_uint total_header_size, comp_size, decomp_size, disk_index; - if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) || - (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG)) - return MZ_FALSE; - MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, - i) = - (mz_uint32)(p - (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p); - if (sort_central_dir) - MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, - mz_uint32, i) = i; - comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); - decomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS); - if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) && - (decomp_size != comp_size)) || - (decomp_size && !comp_size) || (decomp_size == 0xFFFFFFFF) || - (comp_size == 0xFFFFFFFF)) - return MZ_FALSE; - disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS); - if ((disk_index != num_this_disk) && (disk_index != 1)) return MZ_FALSE; - if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + - MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size) - return MZ_FALSE; - if ((total_header_size = MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + - MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) + - MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > - n) - return MZ_FALSE; - n -= total_header_size; - p += total_header_size; - } - } - - if (sort_central_dir) - mz_zip_reader_sort_central_dir_offsets_by_filename(pZip); - - return MZ_TRUE; -} - -mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, - mz_uint32 flags) { - if ((!pZip) || (!pZip->m_pRead)) return MZ_FALSE; - if (!mz_zip_reader_init_internal(pZip, flags)) return MZ_FALSE; - pZip->m_archive_size = size; - if (!mz_zip_reader_read_central_dir(pZip, flags)) { - mz_zip_reader_end(pZip); - return MZ_FALSE; - } - return MZ_TRUE; -} - -static size_t mz_zip_mem_read_func(void *pOpaque, mz_uint64 file_ofs, - void *pBuf, size_t n) { - mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; - size_t s = (file_ofs >= pZip->m_archive_size) - ? 0 - : (size_t)MZ_MIN(pZip->m_archive_size - file_ofs, n); - memcpy(pBuf, (const mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s); - return s; -} - -mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, - size_t size, mz_uint32 flags) { - if (!mz_zip_reader_init_internal(pZip, flags)) return MZ_FALSE; - pZip->m_archive_size = size; - pZip->m_pRead = mz_zip_mem_read_func; - pZip->m_pIO_opaque = pZip; -#ifdef __cplusplus - pZip->m_pState->m_pMem = const_cast(pMem); -#else - pZip->m_pState->m_pMem = (void *)pMem; -#endif - pZip->m_pState->m_mem_size = size; - if (!mz_zip_reader_read_central_dir(pZip, flags)) { - mz_zip_reader_end(pZip); - return MZ_FALSE; - } - return MZ_TRUE; -} - -#ifndef MINIZ_NO_STDIO -static size_t mz_zip_file_read_func(void *pOpaque, mz_uint64 file_ofs, - void *pBuf, size_t n) { - mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; - mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile); - if (((mz_int64)file_ofs < 0) || - (((cur_ofs != (mz_int64)file_ofs)) && - (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET)))) - return 0; - return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile); -} - -mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, - mz_uint32 flags) { - mz_uint64 file_size; - MZ_FILE *pFile = MZ_FOPEN(pFilename, "rb"); - if (!pFile) return MZ_FALSE; - if (MZ_FSEEK64(pFile, 0, SEEK_END)) { - MZ_FCLOSE(pFile); - return MZ_FALSE; - } - file_size = MZ_FTELL64(pFile); - if (!mz_zip_reader_init_internal(pZip, flags)) { - MZ_FCLOSE(pFile); - return MZ_FALSE; - } - pZip->m_pRead = mz_zip_file_read_func; - pZip->m_pIO_opaque = pZip; - pZip->m_pState->m_pFile = pFile; - pZip->m_archive_size = file_size; - if (!mz_zip_reader_read_central_dir(pZip, flags)) { - mz_zip_reader_end(pZip); - return MZ_FALSE; - } - return MZ_TRUE; -} -#endif // #ifndef MINIZ_NO_STDIO - -mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip) { - return pZip ? pZip->m_total_files : 0; -} - -static MZ_FORCEINLINE const mz_uint8 *mz_zip_reader_get_cdh( - mz_zip_archive *pZip, mz_uint file_index) { - if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files) || - (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) - return NULL; - return &MZ_ZIP_ARRAY_ELEMENT( - &pZip->m_pState->m_central_dir, mz_uint8, - MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, - file_index)); -} - -mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, - mz_uint file_index) { - mz_uint m_bit_flag; - const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index); - if (!p) return MZ_FALSE; - m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); - return (m_bit_flag & 1); -} - -mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, - mz_uint file_index) { - mz_uint filename_len, external_attr; - const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index); - if (!p) return MZ_FALSE; - - // First see if the filename ends with a '/' character. - filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); - if (filename_len) { - if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/') - return MZ_TRUE; - } - - // Bugfix: This code was also checking if the internal attribute was non-zero, - // which wasn't correct. - // Most/all zip writers (hopefully) set DOS file/directory attributes in the - // low 16-bits, so check for the DOS directory flag and ignore the source OS - // ID in the created by field. - // FIXME: Remove this check? Is it necessary - we already check the filename. - external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS); - if ((external_attr & 0x10) != 0) return MZ_TRUE; - - return MZ_FALSE; -} - -mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, - mz_zip_archive_file_stat *pStat) { - mz_uint n; - const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index); - if ((!p) || (!pStat)) return MZ_FALSE; - - // Unpack the central directory record. - pStat->m_file_index = file_index; - pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT( - &pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index); - pStat->m_version_made_by = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS); - pStat->m_version_needed = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_NEEDED_OFS); - pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); - pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS); -#ifndef MINIZ_NO_TIME - pStat->m_time = - mz_zip_dos_to_time_t(MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS), - MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS)); -#endif - pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS); - pStat->m_comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); - pStat->m_uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS); - pStat->m_internal_attr = MZ_READ_LE16(p + MZ_ZIP_CDH_INTERNAL_ATTR_OFS); - pStat->m_external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS); - pStat->m_local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS); - - // Copy as much of the filename and comment as possible. - n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); - n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1); - memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n); - pStat->m_filename[n] = '\0'; - - n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS); - n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1); - pStat->m_comment_size = n; - memcpy(pStat->m_comment, - p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + - MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS), - n); - pStat->m_comment[n] = '\0'; - - return MZ_TRUE; -} - -mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, - char *pFilename, mz_uint filename_buf_size) { - mz_uint n; - const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index); - if (!p) { - if (filename_buf_size) pFilename[0] = '\0'; - return 0; - } - n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); - if (filename_buf_size) { - n = MZ_MIN(n, filename_buf_size - 1); - memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n); - pFilename[n] = '\0'; - } - return n + 1; -} - -static MZ_FORCEINLINE mz_bool mz_zip_reader_string_equal(const char *pA, - const char *pB, - mz_uint len, - mz_uint flags) { - mz_uint i; - if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE) return 0 == memcmp(pA, pB, len); - for (i = 0; i < len; ++i) - if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i])) return MZ_FALSE; - return MZ_TRUE; -} - -static MZ_FORCEINLINE int mz_zip_reader_filename_compare( - const mz_zip_array *pCentral_dir_array, - const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, const char *pR, - mz_uint r_len) { - const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT( - pCentral_dir_array, mz_uint8, - MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, - l_index)), - *pE; - mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS); - mz_uint8 l = 0, r = 0; - pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; - pE = pL + MZ_MIN(l_len, r_len); - while (pL < pE) { - if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR))) break; - pL++; - pR++; - } - return (pL == pE) ? (int)(l_len - r_len) : (l - r); -} - -static int mz_zip_reader_locate_file_binary_search(mz_zip_archive *pZip, - const char *pFilename) { - mz_zip_internal_state *pState = pZip->m_pState; - const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets; - const mz_zip_array *pCentral_dir = &pState->m_central_dir; - mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT( - &pState->m_sorted_central_dir_offsets, mz_uint32, 0); - const int size = pZip->m_total_files; - const mz_uint filename_len = (mz_uint)strlen(pFilename); - int l = 0, h = size - 1; - while (l <= h) { - int m = (l + h) >> 1, file_index = pIndices[m], - comp = - mz_zip_reader_filename_compare(pCentral_dir, pCentral_dir_offsets, - file_index, pFilename, filename_len); - if (!comp) - return file_index; - else if (comp < 0) - l = m + 1; - else - h = m - 1; - } - return -1; -} - -int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, - const char *pComment, mz_uint flags) { - mz_uint file_index; - size_t name_len, comment_len; - if ((!pZip) || (!pZip->m_pState) || (!pName) || - (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) - return -1; - if (((flags & (MZ_ZIP_FLAG_IGNORE_PATH | MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) && - (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size)) - return mz_zip_reader_locate_file_binary_search(pZip, pName); - name_len = strlen(pName); - if (name_len > 0xFFFF) return -1; - comment_len = pComment ? strlen(pComment) : 0; - if (comment_len > 0xFFFF) return -1; - for (file_index = 0; file_index < pZip->m_total_files; file_index++) { - const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT( - &pZip->m_pState->m_central_dir, mz_uint8, - MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, - file_index)); - mz_uint filename_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS); - const char *pFilename = - (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; - if (filename_len < name_len) continue; - if (comment_len) { - mz_uint file_extra_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_EXTRA_LEN_OFS), - file_comment_len = - MZ_READ_LE16(pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS); - const char *pFile_comment = pFilename + filename_len + file_extra_len; - if ((file_comment_len != comment_len) || - (!mz_zip_reader_string_equal(pComment, pFile_comment, - file_comment_len, flags))) - continue; - } - if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len)) { - int ofs = filename_len - 1; - do { - if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || - (pFilename[ofs] == ':')) - break; - } while (--ofs >= 0); - ofs++; - pFilename += ofs; - filename_len -= ofs; - } - if ((filename_len == name_len) && - (mz_zip_reader_string_equal(pName, pFilename, filename_len, flags))) - return file_index; - } - return -1; -} - -mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, - mz_uint file_index, void *pBuf, - size_t buf_size, mz_uint flags, - void *pUser_read_buf, - size_t user_read_buf_size) { - int status = TINFL_STATUS_DONE; - mz_uint64 needed_size, cur_file_ofs, comp_remaining, - out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail; - mz_zip_archive_file_stat file_stat; - void *pRead_buf; - mz_uint32 - local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / - sizeof(mz_uint32)]; - mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; - tinfl_decompressor inflator; - - if ((buf_size) && (!pBuf)) return MZ_FALSE; - - if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) return MZ_FALSE; - - // Empty file, or a directory (but not always a directory - I've seen odd zips - // with directories that have compressed data which inflates to 0 bytes) - if (!file_stat.m_comp_size) return MZ_TRUE; - - // Entry is a subdirectory (I've seen old zips with dir entries which have - // compressed deflate data which inflates to 0 bytes, but these entries claim - // to uncompress to 512 bytes in the headers). - // I'm torn how to handle this case - should it fail instead? - if (mz_zip_reader_is_file_a_directory(pZip, file_index)) return MZ_TRUE; - - // Encryption and patch files are not supported. - if (file_stat.m_bit_flag & (1 | 32)) return MZ_FALSE; - - // This function only supports stored and deflate. - if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && - (file_stat.m_method != MZ_DEFLATED)) - return MZ_FALSE; - - // Ensure supplied output buffer is large enough. - needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size - : file_stat.m_uncomp_size; - if (buf_size < needed_size) return MZ_FALSE; - - // Read and parse the local directory entry. - cur_file_ofs = file_stat.m_local_header_ofs; - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) - return MZ_FALSE; - if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) - return MZ_FALSE; - - cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + - MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); - if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size) - return MZ_FALSE; - - if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method)) { - // The file is stored or the caller has requested the compressed data. - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, - (size_t)needed_size) != needed_size) - return MZ_FALSE; - return ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) != 0) || - (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, - (size_t)file_stat.m_uncomp_size) == file_stat.m_crc32); - } - - // Decompress the file either directly from memory or from a file input - // buffer. - tinfl_init(&inflator); - - if (pZip->m_pState->m_pMem) { - // Read directly from the archive in memory. - pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs; - read_buf_size = read_buf_avail = file_stat.m_comp_size; - comp_remaining = 0; - } else if (pUser_read_buf) { - // Use a user provided read buffer. - if (!user_read_buf_size) return MZ_FALSE; - pRead_buf = (mz_uint8 *)pUser_read_buf; - read_buf_size = user_read_buf_size; - read_buf_avail = 0; - comp_remaining = file_stat.m_comp_size; - } else { - // Temporarily allocate a read buffer. - read_buf_size = - MZ_MIN(file_stat.m_comp_size, (mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE); -#ifdef _MSC_VER - if (((0, sizeof(size_t) == sizeof(mz_uint32))) && - (read_buf_size > 0x7FFFFFFF)) -#else - if (((sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF)) -#endif - return MZ_FALSE; - if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, - (size_t)read_buf_size))) - return MZ_FALSE; - read_buf_avail = 0; - comp_remaining = file_stat.m_comp_size; - } - - do { - size_t in_buf_size, - out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs); - if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) { - read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, - (size_t)read_buf_avail) != read_buf_avail) { - status = TINFL_STATUS_FAILED; - break; - } - cur_file_ofs += read_buf_avail; - comp_remaining -= read_buf_avail; - read_buf_ofs = 0; - } - in_buf_size = (size_t)read_buf_avail; - status = tinfl_decompress( - &inflator, (mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, - (mz_uint8 *)pBuf, (mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, - TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | - (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0)); - read_buf_avail -= in_buf_size; - read_buf_ofs += in_buf_size; - out_buf_ofs += out_buf_size; - } while (status == TINFL_STATUS_NEEDS_MORE_INPUT); - - if (status == TINFL_STATUS_DONE) { - // Make sure the entire file was decompressed, and check its CRC. - if ((out_buf_ofs != file_stat.m_uncomp_size) || - (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, - (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32)) - status = TINFL_STATUS_FAILED; - } - - if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf)) - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - - return status == TINFL_STATUS_DONE; -} - -mz_bool mz_zip_reader_extract_file_to_mem_no_alloc( - mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, - mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size) { - int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags); - if (file_index < 0) return MZ_FALSE; - return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, - flags, pUser_read_buf, - user_read_buf_size); -} - -mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, - void *pBuf, size_t buf_size, - mz_uint flags) { - return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, - flags, NULL, 0); -} - -mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, - const char *pFilename, void *pBuf, - size_t buf_size, mz_uint flags) { - return mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, - buf_size, flags, NULL, 0); -} - -void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, - size_t *pSize, mz_uint flags) { - mz_uint64 comp_size, uncomp_size, alloc_size; - const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index); - void *pBuf; - - if (pSize) *pSize = 0; - if (!p) return NULL; - - comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); - uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS); - - alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? comp_size : uncomp_size; -#ifdef _MSC_VER - if (((0, sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF)) -#else - if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF)) -#endif - return NULL; - if (NULL == - (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size))) - return NULL; - - if (!mz_zip_reader_extract_to_mem(pZip, file_index, pBuf, (size_t)alloc_size, - flags)) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - return NULL; - } - - if (pSize) *pSize = (size_t)alloc_size; - return pBuf; -} - -void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, - const char *pFilename, size_t *pSize, - mz_uint flags) { - int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags); - if (file_index < 0) { - if (pSize) *pSize = 0; - return MZ_FALSE; - } - return mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags); -} - -mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, - mz_uint file_index, - mz_file_write_func pCallback, - void *pOpaque, mz_uint flags) { - int status = TINFL_STATUS_DONE; - mz_uint file_crc32 = MZ_CRC32_INIT; - mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, - out_buf_ofs = 0, cur_file_ofs; - mz_zip_archive_file_stat file_stat; - void *pRead_buf = NULL; - void *pWrite_buf = NULL; - mz_uint32 - local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / - sizeof(mz_uint32)]; - mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; - - if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) return MZ_FALSE; - - // Empty file, or a directory (but not always a directory - I've seen odd zips - // with directories that have compressed data which inflates to 0 bytes) - if (!file_stat.m_comp_size) return MZ_TRUE; - - // Entry is a subdirectory (I've seen old zips with dir entries which have - // compressed deflate data which inflates to 0 bytes, but these entries claim - // to uncompress to 512 bytes in the headers). - // I'm torn how to handle this case - should it fail instead? - if (mz_zip_reader_is_file_a_directory(pZip, file_index)) return MZ_TRUE; - - // Encryption and patch files are not supported. - if (file_stat.m_bit_flag & (1 | 32)) return MZ_FALSE; - - // This function only supports stored and deflate. - if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && - (file_stat.m_method != MZ_DEFLATED)) - return MZ_FALSE; - - // Read and parse the local directory entry. - cur_file_ofs = file_stat.m_local_header_ofs; - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) - return MZ_FALSE; - if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) - return MZ_FALSE; - - cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + - MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); - if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size) - return MZ_FALSE; - - // Decompress the file either directly from memory or from a file input - // buffer. - if (pZip->m_pState->m_pMem) { - pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs; - read_buf_size = read_buf_avail = file_stat.m_comp_size; - comp_remaining = 0; - } else { - read_buf_size = - MZ_MIN(file_stat.m_comp_size, (mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE); - if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, - (size_t)read_buf_size))) - return MZ_FALSE; - read_buf_avail = 0; - comp_remaining = file_stat.m_comp_size; - } - - if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method)) { - // The file is stored or the caller has requested the compressed data. - if (pZip->m_pState->m_pMem) { -#ifdef _MSC_VER - if (((0, sizeof(size_t) == sizeof(mz_uint32))) && - (file_stat.m_comp_size > 0xFFFFFFFF)) -#else - if (((sizeof(size_t) == sizeof(mz_uint32))) && - (file_stat.m_comp_size > 0xFFFFFFFF)) -#endif - return MZ_FALSE; - if (pCallback(pOpaque, out_buf_ofs, pRead_buf, - (size_t)file_stat.m_comp_size) != file_stat.m_comp_size) - status = TINFL_STATUS_FAILED; - else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) - file_crc32 = - (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, - (size_t)file_stat.m_comp_size); - cur_file_ofs += file_stat.m_comp_size; - out_buf_ofs += file_stat.m_comp_size; - comp_remaining = 0; - } else { - while (comp_remaining) { - read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, - (size_t)read_buf_avail) != read_buf_avail) { - status = TINFL_STATUS_FAILED; - break; - } - - if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) - file_crc32 = (mz_uint32)mz_crc32( - file_crc32, (const mz_uint8 *)pRead_buf, (size_t)read_buf_avail); - - if (pCallback(pOpaque, out_buf_ofs, pRead_buf, - (size_t)read_buf_avail) != read_buf_avail) { - status = TINFL_STATUS_FAILED; - break; - } - cur_file_ofs += read_buf_avail; - out_buf_ofs += read_buf_avail; - comp_remaining -= read_buf_avail; - } - } - } else { - tinfl_decompressor inflator; - tinfl_init(&inflator); - - if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, - TINFL_LZ_DICT_SIZE))) - status = TINFL_STATUS_FAILED; - else { - do { - mz_uint8 *pWrite_buf_cur = - (mz_uint8 *)pWrite_buf + (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); - size_t in_buf_size, - out_buf_size = - TINFL_LZ_DICT_SIZE - (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); - if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) { - read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); - if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, - (size_t)read_buf_avail) != read_buf_avail) { - status = TINFL_STATUS_FAILED; - break; - } - cur_file_ofs += read_buf_avail; - comp_remaining -= read_buf_avail; - read_buf_ofs = 0; - } - - in_buf_size = (size_t)read_buf_avail; - status = tinfl_decompress( - &inflator, (const mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, - (mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, - comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0); - read_buf_avail -= in_buf_size; - read_buf_ofs += in_buf_size; - - if (out_buf_size) { - if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != - out_buf_size) { - status = TINFL_STATUS_FAILED; - break; - } - file_crc32 = - (mz_uint32)mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size); - if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size) { - status = TINFL_STATUS_FAILED; - break; - } - } - } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) || - (status == TINFL_STATUS_HAS_MORE_OUTPUT)); - } - } - - if ((status == TINFL_STATUS_DONE) && - (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) { - // Make sure the entire file was decompressed, and check its CRC. - if ((out_buf_ofs != file_stat.m_uncomp_size) || - (file_crc32 != file_stat.m_crc32)) - status = TINFL_STATUS_FAILED; - } - - if (!pZip->m_pState->m_pMem) pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - if (pWrite_buf) pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf); - - return status == TINFL_STATUS_DONE; -} - -mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, - const char *pFilename, - mz_file_write_func pCallback, - void *pOpaque, mz_uint flags) { - int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags); - if (file_index < 0) return MZ_FALSE; - return mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, - flags); -} - -#ifndef MINIZ_NO_STDIO -static size_t mz_zip_file_write_callback(void *pOpaque, mz_uint64 ofs, - const void *pBuf, size_t n) { - (void)ofs; - return MZ_FWRITE(pBuf, 1, n, (MZ_FILE *)pOpaque); -} - -mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, - const char *pDst_filename, - mz_uint flags) { - mz_bool status; - mz_zip_archive_file_stat file_stat; - MZ_FILE *pFile; - if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) return MZ_FALSE; - pFile = MZ_FOPEN(pDst_filename, "wb"); - if (!pFile) return MZ_FALSE; - status = mz_zip_reader_extract_to_callback( - pZip, file_index, mz_zip_file_write_callback, pFile, flags); - if (MZ_FCLOSE(pFile) == EOF) return MZ_FALSE; -#ifndef MINIZ_NO_TIME - if (status) - mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time); -#endif - return status; -} -#endif // #ifndef MINIZ_NO_STDIO - -mz_bool mz_zip_reader_end(mz_zip_archive *pZip) { - if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || - (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) - return MZ_FALSE; - - if (pZip->m_pState) { - mz_zip_internal_state *pState = pZip->m_pState; - pZip->m_pState = NULL; - mz_zip_array_clear(pZip, &pState->m_central_dir); - mz_zip_array_clear(pZip, &pState->m_central_dir_offsets); - mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets); - -#ifndef MINIZ_NO_STDIO - if (pState->m_pFile) { - MZ_FCLOSE(pState->m_pFile); - pState->m_pFile = NULL; - } -#endif // #ifndef MINIZ_NO_STDIO - - pZip->m_pFree(pZip->m_pAlloc_opaque, pState); - } - pZip->m_zip_mode = MZ_ZIP_MODE_INVALID; - - return MZ_TRUE; -} - -#ifndef MINIZ_NO_STDIO -mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, - const char *pArchive_filename, - const char *pDst_filename, - mz_uint flags) { - int file_index = - mz_zip_reader_locate_file(pZip, pArchive_filename, NULL, flags); - if (file_index < 0) return MZ_FALSE; - return mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags); -} -#endif - -// ------------------- .ZIP archive writing - -#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS - -static void mz_write_le16(mz_uint8 *p, mz_uint16 v) { - p[0] = (mz_uint8)v; - p[1] = (mz_uint8)(v >> 8); -} -static void mz_write_le32(mz_uint8 *p, mz_uint32 v) { - p[0] = (mz_uint8)v; - p[1] = (mz_uint8)(v >> 8); - p[2] = (mz_uint8)(v >> 16); - p[3] = (mz_uint8)(v >> 24); -} -#define MZ_WRITE_LE16(p, v) mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v)) -#define MZ_WRITE_LE32(p, v) mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v)) - -mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size) { - if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || - (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID)) - return MZ_FALSE; - - if (pZip->m_file_offset_alignment) { - // Ensure user specified file offset alignment is a power of 2. - if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1)) - return MZ_FALSE; - } - - if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func; - if (!pZip->m_pFree) pZip->m_pFree = def_free_func; - if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func; - - pZip->m_zip_mode = MZ_ZIP_MODE_WRITING; - pZip->m_archive_size = existing_size; - pZip->m_central_directory_file_ofs = 0; - pZip->m_total_files = 0; - - if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state)))) - return MZ_FALSE; - memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, - sizeof(mz_uint8)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, - sizeof(mz_uint32)); - MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, - sizeof(mz_uint32)); - return MZ_TRUE; -} - -static size_t mz_zip_heap_write_func(void *pOpaque, mz_uint64 file_ofs, - const void *pBuf, size_t n) { - mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; - mz_zip_internal_state *pState = pZip->m_pState; - mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size); -#ifdef _MSC_VER - if ((!n) || - ((0, sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF))) -#else - if ((!n) || - ((sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF))) -#endif - return 0; - if (new_size > pState->m_mem_capacity) { - void *pNew_block; - size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity); - while (new_capacity < new_size) new_capacity *= 2; - if (NULL == (pNew_block = pZip->m_pRealloc( - pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity))) - return 0; - pState->m_pMem = pNew_block; - pState->m_mem_capacity = new_capacity; - } - memcpy((mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n); - pState->m_mem_size = (size_t)new_size; - return n; -} - -mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, - size_t size_to_reserve_at_beginning, - size_t initial_allocation_size) { - pZip->m_pWrite = mz_zip_heap_write_func; - pZip->m_pIO_opaque = pZip; - if (!mz_zip_writer_init(pZip, size_to_reserve_at_beginning)) return MZ_FALSE; - if (0 != (initial_allocation_size = MZ_MAX(initial_allocation_size, - size_to_reserve_at_beginning))) { - if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, initial_allocation_size))) { - mz_zip_writer_end(pZip); - return MZ_FALSE; - } - pZip->m_pState->m_mem_capacity = initial_allocation_size; - } - return MZ_TRUE; -} - -#ifndef MINIZ_NO_STDIO -static size_t mz_zip_file_write_func(void *pOpaque, mz_uint64 file_ofs, - const void *pBuf, size_t n) { - mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; - mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile); - if (((mz_int64)file_ofs < 0) || - (((cur_ofs != (mz_int64)file_ofs)) && - (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET)))) - return 0; - return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile); -} - -mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, - mz_uint64 size_to_reserve_at_beginning) { - MZ_FILE *pFile; - pZip->m_pWrite = mz_zip_file_write_func; - pZip->m_pIO_opaque = pZip; - if (!mz_zip_writer_init(pZip, size_to_reserve_at_beginning)) return MZ_FALSE; - if (NULL == (pFile = MZ_FOPEN(pFilename, "wb"))) { - mz_zip_writer_end(pZip); - return MZ_FALSE; - } - pZip->m_pState->m_pFile = pFile; - if (size_to_reserve_at_beginning) { - mz_uint64 cur_ofs = 0; - char buf[4096]; - MZ_CLEAR_OBJ(buf); - do { - size_t n = (size_t)MZ_MIN(sizeof(buf), size_to_reserve_at_beginning); - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n) { - mz_zip_writer_end(pZip); - return MZ_FALSE; - } - cur_ofs += n; - size_to_reserve_at_beginning -= n; - } while (size_to_reserve_at_beginning); - } - return MZ_TRUE; -} -#endif // #ifndef MINIZ_NO_STDIO - -mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, - const char *pFilename) { - mz_zip_internal_state *pState; - if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) - return MZ_FALSE; - // No sense in trying to write to an archive that's already at the support max - // size - if ((pZip->m_total_files == 0xFFFF) || - ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > 0xFFFFFFFF)) - return MZ_FALSE; - - pState = pZip->m_pState; - - if (pState->m_pFile) { -#ifdef MINIZ_NO_STDIO - pFilename; - return MZ_FALSE; -#else - // Archive is being read from stdio - try to reopen as writable. - if (pZip->m_pIO_opaque != pZip) return MZ_FALSE; - if (!pFilename) return MZ_FALSE; - pZip->m_pWrite = mz_zip_file_write_func; - if (NULL == - (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b", pState->m_pFile))) { - // The mz_zip_archive is now in a bogus state because pState->m_pFile is - // NULL, so just close it. - mz_zip_reader_end(pZip); - return MZ_FALSE; - } -#endif // #ifdef MINIZ_NO_STDIO - } else if (pState->m_pMem) { - // Archive lives in a memory block. Assume it's from the heap that we can - // resize using the realloc callback. - if (pZip->m_pIO_opaque != pZip) return MZ_FALSE; - pState->m_mem_capacity = pState->m_mem_size; - pZip->m_pWrite = mz_zip_heap_write_func; - } - // Archive is being read via a user provided read function - make sure the - // user has specified a write function too. - else if (!pZip->m_pWrite) - return MZ_FALSE; - - // Start writing new files at the archive's current central directory - // location. - pZip->m_archive_size = pZip->m_central_directory_file_ofs; - pZip->m_zip_mode = MZ_ZIP_MODE_WRITING; - pZip->m_central_directory_file_ofs = 0; - - return MZ_TRUE; -} - -mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, - const void *pBuf, size_t buf_size, - mz_uint level_and_flags) { - return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, - level_and_flags, 0, 0); -} - -typedef struct { - mz_zip_archive *m_pZip; - mz_uint64 m_cur_archive_file_ofs; - mz_uint64 m_comp_size; -} mz_zip_writer_add_state; - -static mz_bool mz_zip_writer_add_put_buf_callback(const void *pBuf, int len, - void *pUser) { - mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *)pUser; - if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, - pState->m_cur_archive_file_ofs, pBuf, - len) != len) - return MZ_FALSE; - pState->m_cur_archive_file_ofs += len; - pState->m_comp_size += len; - return MZ_TRUE; -} - -static mz_bool mz_zip_writer_create_local_dir_header( - mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, - mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size, - mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, - mz_uint16 dos_time, mz_uint16 dos_date) { - (void)pZip; - memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE); - MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS, method ? 20 : 0); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date); - MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32); - MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, comp_size); - MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, uncomp_size); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size); - MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size); - return MZ_TRUE; -} - -static mz_bool mz_zip_writer_create_central_dir_header( - mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, - mz_uint16 extra_size, mz_uint16 comment_size, mz_uint64 uncomp_size, - mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, - mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, - mz_uint64 local_header_ofs, mz_uint32 ext_attributes) { - (void)pZip; - memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS, method ? 20 : 0); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, comp_size); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, uncomp_size); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size); - MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes); - MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_header_ofs); - return MZ_TRUE; -} - -static mz_bool mz_zip_writer_add_to_central_dir( - mz_zip_archive *pZip, const char *pFilename, mz_uint16 filename_size, - const void *pExtra, mz_uint16 extra_size, const void *pComment, - mz_uint16 comment_size, mz_uint64 uncomp_size, mz_uint64 comp_size, - mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, - mz_uint16 dos_time, mz_uint16 dos_date, mz_uint64 local_header_ofs, - mz_uint32 ext_attributes) { - mz_zip_internal_state *pState = pZip->m_pState; - mz_uint32 central_dir_ofs = (mz_uint32)pState->m_central_dir.m_size; - size_t orig_central_dir_size = pState->m_central_dir.m_size; - mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE]; - - // No zip64 support yet - if ((local_header_ofs > 0xFFFFFFFF) || - (((mz_uint64)pState->m_central_dir.m_size + - MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + - comment_size) > 0xFFFFFFFF)) - return MZ_FALSE; - - if (!mz_zip_writer_create_central_dir_header( - pZip, central_dir_header, filename_size, extra_size, comment_size, - uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, - dos_date, local_header_ofs, ext_attributes)) - return MZ_FALSE; - - if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, - MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) || - (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, - filename_size)) || - (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, - extra_size)) || - (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, - comment_size)) || - (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, - ¢ral_dir_ofs, 1))) { - // Try to push the central directory array back into its original state. - mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, - MZ_FALSE); - return MZ_FALSE; - } - - return MZ_TRUE; -} - -static mz_bool mz_zip_writer_validate_archive_name(const char *pArchive_name) { - // Basic ZIP archive filename validity checks: Valid filenames cannot start - // with a forward slash, cannot contain a drive letter, and cannot use - // DOS-style backward slashes. - if (*pArchive_name == '/') return MZ_FALSE; - while (*pArchive_name) { - if ((*pArchive_name == '\\') || (*pArchive_name == ':')) return MZ_FALSE; - pArchive_name++; - } - return MZ_TRUE; -} - -static mz_uint mz_zip_writer_compute_padding_needed_for_file_alignment( - mz_zip_archive *pZip) { - mz_uint32 n; - if (!pZip->m_file_offset_alignment) return 0; - n = (mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1)); - return (pZip->m_file_offset_alignment - n) & - (pZip->m_file_offset_alignment - 1); -} - -static mz_bool mz_zip_writer_write_zeros(mz_zip_archive *pZip, - mz_uint64 cur_file_ofs, mz_uint32 n) { - char buf[4096]; - memset(buf, 0, MZ_MIN(sizeof(buf), n)); - while (n) { - mz_uint32 s = MZ_MIN(sizeof(buf), n); - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s) - return MZ_FALSE; - cur_file_ofs += s; - n -= s; - } - return MZ_TRUE; -} - -mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, - const char *pArchive_name, const void *pBuf, - size_t buf_size, const void *pComment, - mz_uint16 comment_size, - mz_uint level_and_flags, mz_uint64 uncomp_size, - mz_uint32 uncomp_crc32) { - mz_uint16 method = 0, dos_time = 0, dos_date = 0; - mz_uint level, ext_attributes = 0, num_alignment_padding_bytes; - mz_uint64 local_dir_header_ofs = pZip->m_archive_size, - cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0; - size_t archive_name_size; - mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE]; - tdefl_compressor *pComp = NULL; - mz_bool store_data_uncompressed; - mz_zip_internal_state *pState; - - if ((int)level_and_flags < 0) level_and_flags = MZ_DEFAULT_LEVEL; - level = level_and_flags & 0xF; - store_data_uncompressed = - ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)); - - if ((!pZip) || (!pZip->m_pState) || - (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || - (!pArchive_name) || ((comment_size) && (!pComment)) || - (pZip->m_total_files == 0xFFFF) || (level > MZ_UBER_COMPRESSION)) - return MZ_FALSE; - - pState = pZip->m_pState; - - if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size)) - return MZ_FALSE; - // No zip64 support yet - if ((buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF)) return MZ_FALSE; - if (!mz_zip_writer_validate_archive_name(pArchive_name)) return MZ_FALSE; - -#ifndef MINIZ_NO_TIME - { - time_t cur_time; - time(&cur_time); - mz_zip_time_to_dos_time(cur_time, &dos_time, &dos_date); - } -#endif // #ifndef MINIZ_NO_TIME - - archive_name_size = strlen(pArchive_name); - if (archive_name_size > 0xFFFF) return MZ_FALSE; - - num_alignment_padding_bytes = - mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); - - // no zip64 support yet - if ((pZip->m_total_files == 0xFFFF) || - ((pZip->m_archive_size + num_alignment_padding_bytes + - MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + - comment_size + archive_name_size) > 0xFFFFFFFF)) - return MZ_FALSE; - - if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/')) { - // Set DOS Subdirectory attribute bit. - ext_attributes |= 0x10; - // Subdirectories cannot contain data. - if ((buf_size) || (uncomp_size)) return MZ_FALSE; - } - - // Try to do any allocations before writing to the archive, so if an - // allocation fails the file remains unmodified. (A good idea if we're doing - // an in-place modification.) - if ((!mz_zip_array_ensure_room( - pZip, &pState->m_central_dir, - MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size)) || - (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1))) - return MZ_FALSE; - - if ((!store_data_uncompressed) && (buf_size)) { - if (NULL == (pComp = (tdefl_compressor *)pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor)))) - return MZ_FALSE; - } - - if (!mz_zip_writer_write_zeros( - pZip, cur_archive_file_ofs, - num_alignment_padding_bytes + sizeof(local_dir_header))) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - return MZ_FALSE; - } - local_dir_header_ofs += num_alignment_padding_bytes; - if (pZip->m_file_offset_alignment) { - MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == - 0); - } - cur_archive_file_ofs += - num_alignment_padding_bytes + sizeof(local_dir_header); - - MZ_CLEAR_OBJ(local_dir_header); - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, - archive_name_size) != archive_name_size) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - return MZ_FALSE; - } - cur_archive_file_ofs += archive_name_size; - - if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) { - uncomp_crc32 = - (mz_uint32)mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, buf_size); - uncomp_size = buf_size; - if (uncomp_size <= 3) { - level = 0; - store_data_uncompressed = MZ_TRUE; - } - } - - if (store_data_uncompressed) { - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, - buf_size) != buf_size) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - return MZ_FALSE; - } - - cur_archive_file_ofs += buf_size; - comp_size = buf_size; - - if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA) method = MZ_DEFLATED; - } else if (buf_size) { - mz_zip_writer_add_state state; - - state.m_pZip = pZip; - state.m_cur_archive_file_ofs = cur_archive_file_ofs; - state.m_comp_size = 0; - - if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, - tdefl_create_comp_flags_from_zip_params( - level, -15, MZ_DEFAULT_STRATEGY)) != - TDEFL_STATUS_OKAY) || - (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) != - TDEFL_STATUS_DONE)) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - return MZ_FALSE; - } - - comp_size = state.m_comp_size; - cur_archive_file_ofs = state.m_cur_archive_file_ofs; - - method = MZ_DEFLATED; - } - - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - pComp = NULL; - - // no zip64 support yet - if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF)) - return MZ_FALSE; - - if (!mz_zip_writer_create_local_dir_header( - pZip, local_dir_header, (mz_uint16)archive_name_size, 0, uncomp_size, - comp_size, uncomp_crc32, method, 0, dos_time, dos_date)) - return MZ_FALSE; - - if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, - sizeof(local_dir_header)) != sizeof(local_dir_header)) - return MZ_FALSE; - - if (!mz_zip_writer_add_to_central_dir( - pZip, pArchive_name, (mz_uint16)archive_name_size, NULL, 0, pComment, - comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, - dos_time, dos_date, local_dir_header_ofs, ext_attributes)) - return MZ_FALSE; - - pZip->m_total_files++; - pZip->m_archive_size = cur_archive_file_ofs; - - return MZ_TRUE; -} - -#ifndef MINIZ_NO_STDIO -mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, - const char *pSrc_filename, const void *pComment, - mz_uint16 comment_size, - mz_uint level_and_flags) { - mz_uint uncomp_crc32 = MZ_CRC32_INIT, level, num_alignment_padding_bytes; - mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0; - mz_uint64 local_dir_header_ofs = pZip->m_archive_size, - cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, - comp_size = 0; - size_t archive_name_size; - mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE]; - MZ_FILE *pSrc_file = NULL; - - if ((int)level_and_flags < 0) level_and_flags = MZ_DEFAULT_LEVEL; - level = level_and_flags & 0xF; - - if ((!pZip) || (!pZip->m_pState) || - (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || - ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION)) - return MZ_FALSE; - if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA) return MZ_FALSE; - if (!mz_zip_writer_validate_archive_name(pArchive_name)) return MZ_FALSE; - - archive_name_size = strlen(pArchive_name); - if (archive_name_size > 0xFFFF) return MZ_FALSE; - - num_alignment_padding_bytes = - mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); - - // no zip64 support yet - if ((pZip->m_total_files == 0xFFFF) || - ((pZip->m_archive_size + num_alignment_padding_bytes + - MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + - comment_size + archive_name_size) > 0xFFFFFFFF)) - return MZ_FALSE; - - if (!mz_zip_get_file_modified_time(pSrc_filename, &dos_time, &dos_date)) - return MZ_FALSE; - - pSrc_file = MZ_FOPEN(pSrc_filename, "rb"); - if (!pSrc_file) return MZ_FALSE; - MZ_FSEEK64(pSrc_file, 0, SEEK_END); - uncomp_size = MZ_FTELL64(pSrc_file); - MZ_FSEEK64(pSrc_file, 0, SEEK_SET); - - if (uncomp_size > 0xFFFFFFFF) { - // No zip64 support yet - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - if (uncomp_size <= 3) level = 0; - - if (!mz_zip_writer_write_zeros( - pZip, cur_archive_file_ofs, - num_alignment_padding_bytes + sizeof(local_dir_header))) { - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - local_dir_header_ofs += num_alignment_padding_bytes; - if (pZip->m_file_offset_alignment) { - MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == - 0); - } - cur_archive_file_ofs += - num_alignment_padding_bytes + sizeof(local_dir_header); - - MZ_CLEAR_OBJ(local_dir_header); - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, - archive_name_size) != archive_name_size) { - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - cur_archive_file_ofs += archive_name_size; - - if (uncomp_size) { - mz_uint64 uncomp_remaining = uncomp_size; - void *pRead_buf = - pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, MZ_ZIP_MAX_IO_BUF_SIZE); - if (!pRead_buf) { - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - - if (!level) { - while (uncomp_remaining) { - mz_uint n = - (mz_uint)MZ_MIN((mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE, uncomp_remaining); - if ((MZ_FREAD(pRead_buf, 1, n, pSrc_file) != n) || - (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, - n) != n)) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - uncomp_crc32 = - (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n); - uncomp_remaining -= n; - cur_archive_file_ofs += n; - } - comp_size = uncomp_size; - } else { - mz_bool result = MZ_FALSE; - mz_zip_writer_add_state state; - tdefl_compressor *pComp = (tdefl_compressor *)pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor)); - if (!pComp) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - - state.m_pZip = pZip; - state.m_cur_archive_file_ofs = cur_archive_file_ofs; - state.m_comp_size = 0; - - if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, - tdefl_create_comp_flags_from_zip_params( - level, -15, MZ_DEFAULT_STRATEGY)) != - TDEFL_STATUS_OKAY) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - - for (;;) { - size_t in_buf_size = (mz_uint32)MZ_MIN(uncomp_remaining, - (mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE); - tdefl_status status; - - if (MZ_FREAD(pRead_buf, 1, in_buf_size, pSrc_file) != in_buf_size) - break; - - uncomp_crc32 = (mz_uint32)mz_crc32( - uncomp_crc32, (const mz_uint8 *)pRead_buf, in_buf_size); - uncomp_remaining -= in_buf_size; - - status = tdefl_compress_buffer( - pComp, pRead_buf, in_buf_size, - uncomp_remaining ? TDEFL_NO_FLUSH : TDEFL_FINISH); - if (status == TDEFL_STATUS_DONE) { - result = MZ_TRUE; - break; - } else if (status != TDEFL_STATUS_OKAY) - break; - } - - pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); - - if (!result) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - MZ_FCLOSE(pSrc_file); - return MZ_FALSE; - } - - comp_size = state.m_comp_size; - cur_archive_file_ofs = state.m_cur_archive_file_ofs; - - method = MZ_DEFLATED; - } - - pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); - } - - MZ_FCLOSE(pSrc_file); - pSrc_file = NULL; - - // no zip64 support yet - if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF)) - return MZ_FALSE; - - if (!mz_zip_writer_create_local_dir_header( - pZip, local_dir_header, (mz_uint16)archive_name_size, 0, uncomp_size, - comp_size, uncomp_crc32, method, 0, dos_time, dos_date)) - return MZ_FALSE; - - if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, - sizeof(local_dir_header)) != sizeof(local_dir_header)) - return MZ_FALSE; - - if (!mz_zip_writer_add_to_central_dir( - pZip, pArchive_name, (mz_uint16)archive_name_size, NULL, 0, pComment, - comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, - dos_time, dos_date, local_dir_header_ofs, ext_attributes)) - return MZ_FALSE; - - pZip->m_total_files++; - pZip->m_archive_size = cur_archive_file_ofs; - - return MZ_TRUE; -} -#endif // #ifndef MINIZ_NO_STDIO - -mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, - mz_zip_archive *pSource_zip, - mz_uint file_index) { - mz_uint n, bit_flags, num_alignment_padding_bytes; - mz_uint64 comp_bytes_remaining, local_dir_header_ofs; - mz_uint64 cur_src_file_ofs, cur_dst_file_ofs; - mz_uint32 - local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / - sizeof(mz_uint32)]; - mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; - mz_uint8 central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE]; - size_t orig_central_dir_size; - mz_zip_internal_state *pState; - void *pBuf; - const mz_uint8 *pSrc_central_header; - - if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING)) - return MZ_FALSE; - if (NULL == - (pSrc_central_header = mz_zip_reader_get_cdh(pSource_zip, file_index))) - return MZ_FALSE; - pState = pZip->m_pState; - - num_alignment_padding_bytes = - mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); - - // no zip64 support yet - if ((pZip->m_total_files == 0xFFFF) || - ((pZip->m_archive_size + num_alignment_padding_bytes + - MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) > - 0xFFFFFFFF)) - return MZ_FALSE; - - cur_src_file_ofs = - MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS); - cur_dst_file_ofs = pZip->m_archive_size; - - if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, - pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) - return MZ_FALSE; - if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) - return MZ_FALSE; - cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE; - - if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, - num_alignment_padding_bytes)) - return MZ_FALSE; - cur_dst_file_ofs += num_alignment_padding_bytes; - local_dir_header_ofs = cur_dst_file_ofs; - if (pZip->m_file_offset_alignment) { - MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == - 0); - } - - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != - MZ_ZIP_LOCAL_DIR_HEADER_SIZE) - return MZ_FALSE; - cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE; - - n = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); - comp_bytes_remaining = - n + MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); - - if (NULL == (pBuf = pZip->m_pAlloc( - pZip->m_pAlloc_opaque, 1, - (size_t)MZ_MAX(sizeof(mz_uint32) * 4, - MZ_MIN((mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE, - comp_bytes_remaining))))) - return MZ_FALSE; - - while (comp_bytes_remaining) { - n = (mz_uint)MZ_MIN((mz_uint)MZ_ZIP_MAX_IO_BUF_SIZE, comp_bytes_remaining); - if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, - n) != n) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - return MZ_FALSE; - } - cur_src_file_ofs += n; - - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - return MZ_FALSE; - } - cur_dst_file_ofs += n; - - comp_bytes_remaining -= n; - } - - bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS); - if (bit_flags & 8) { - // Copy data descriptor - if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, - sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - return MZ_FALSE; - } - - n = sizeof(mz_uint32) * ((MZ_READ_LE32(pBuf) == 0x08074b50) ? 4 : 3); - if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - return MZ_FALSE; - } - - cur_src_file_ofs += n; - cur_dst_file_ofs += n; - } - pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); - - // no zip64 support yet - if (cur_dst_file_ofs > 0xFFFFFFFF) return MZ_FALSE; - - orig_central_dir_size = pState->m_central_dir.m_size; - - memcpy(central_header, pSrc_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE); - MZ_WRITE_LE32(central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, - local_dir_header_ofs); - if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_header, - MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) - return MZ_FALSE; - - n = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_FILENAME_LEN_OFS) + - MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS) + - MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_COMMENT_LEN_OFS); - if (!mz_zip_array_push_back( - pZip, &pState->m_central_dir, - pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n)) { - mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, - MZ_FALSE); - return MZ_FALSE; - } - - if (pState->m_central_dir.m_size > 0xFFFFFFFF) return MZ_FALSE; - n = (mz_uint32)orig_central_dir_size; - if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1)) { - mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, - MZ_FALSE); - return MZ_FALSE; - } - - pZip->m_total_files++; - pZip->m_archive_size = cur_dst_file_ofs; - - return MZ_TRUE; -} - -mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip) { - mz_zip_internal_state *pState; - mz_uint64 central_dir_ofs, central_dir_size; - mz_uint8 hdr[MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE]; - - if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING)) - return MZ_FALSE; - - pState = pZip->m_pState; - - // no zip64 support yet - if ((pZip->m_total_files > 0xFFFF) || - ((pZip->m_archive_size + pState->m_central_dir.m_size + - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > 0xFFFFFFFF)) - return MZ_FALSE; - - central_dir_ofs = 0; - central_dir_size = 0; - if (pZip->m_total_files) { - // Write central directory - central_dir_ofs = pZip->m_archive_size; - central_dir_size = pState->m_central_dir.m_size; - pZip->m_central_directory_file_ofs = central_dir_ofs; - if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, - pState->m_central_dir.m_p, - (size_t)central_dir_size) != central_dir_size) - return MZ_FALSE; - pZip->m_archive_size += central_dir_size; - } - - // Write end of central directory record - MZ_CLEAR_OBJ(hdr); - MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS, - MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG); - MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, - pZip->m_total_files); - MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files); - MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS, central_dir_size); - MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS, central_dir_ofs); - - if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, - sizeof(hdr)) != sizeof(hdr)) - return MZ_FALSE; -#ifndef MINIZ_NO_STDIO - if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF)) return MZ_FALSE; -#endif // #ifndef MINIZ_NO_STDIO - - pZip->m_archive_size += sizeof(hdr); - - pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED; - return MZ_TRUE; -} - -mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, - size_t *pSize) { - if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pSize)) return MZ_FALSE; - if (pZip->m_pWrite != mz_zip_heap_write_func) return MZ_FALSE; - if (!mz_zip_writer_finalize_archive(pZip)) return MZ_FALSE; - - *pBuf = pZip->m_pState->m_pMem; - *pSize = pZip->m_pState->m_mem_size; - pZip->m_pState->m_pMem = NULL; - pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0; - return MZ_TRUE; -} - -mz_bool mz_zip_writer_end(mz_zip_archive *pZip) { - mz_zip_internal_state *pState; - mz_bool status = MZ_TRUE; - if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || - ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) && - (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))) - return MZ_FALSE; - - pState = pZip->m_pState; - pZip->m_pState = NULL; - mz_zip_array_clear(pZip, &pState->m_central_dir); - mz_zip_array_clear(pZip, &pState->m_central_dir_offsets); - mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets); - -#ifndef MINIZ_NO_STDIO - if (pState->m_pFile) { - MZ_FCLOSE(pState->m_pFile); - pState->m_pFile = NULL; - } -#endif // #ifndef MINIZ_NO_STDIO - - if ((pZip->m_pWrite == mz_zip_heap_write_func) && (pState->m_pMem)) { - pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem); - pState->m_pMem = NULL; - } - - pZip->m_pFree(pZip->m_pAlloc_opaque, pState); - pZip->m_zip_mode = MZ_ZIP_MODE_INVALID; - return status; -} - -#ifndef MINIZ_NO_STDIO -mz_bool mz_zip_add_mem_to_archive_file_in_place( - const char *pZip_filename, const char *pArchive_name, const void *pBuf, - size_t buf_size, const void *pComment, mz_uint16 comment_size, - mz_uint level_and_flags) { - mz_bool status, created_new_archive = MZ_FALSE; - mz_zip_archive zip_archive; - struct MZ_FILE_STAT_STRUCT file_stat; - MZ_CLEAR_OBJ(zip_archive); - if ((int)level_and_flags < 0) level_and_flags = MZ_DEFAULT_LEVEL; - if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || - ((comment_size) && (!pComment)) || - ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION)) - return MZ_FALSE; - if (!mz_zip_writer_validate_archive_name(pArchive_name)) return MZ_FALSE; - if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0) { - // Create a new archive. - if (!mz_zip_writer_init_file(&zip_archive, pZip_filename, 0)) - return MZ_FALSE; - created_new_archive = MZ_TRUE; - } else { - // Append to an existing archive. - if (!mz_zip_reader_init_file( - &zip_archive, pZip_filename, - level_and_flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY)) - return MZ_FALSE; - if (!mz_zip_writer_init_from_reader(&zip_archive, pZip_filename)) { - mz_zip_reader_end(&zip_archive); - return MZ_FALSE; - } - } - status = - mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, - pComment, comment_size, level_and_flags, 0, 0); - // Always finalize, even if adding failed for some reason, so we have a valid - // central directory. (This may not always succeed, but we can try.) - if (!mz_zip_writer_finalize_archive(&zip_archive)) status = MZ_FALSE; - if (!mz_zip_writer_end(&zip_archive)) status = MZ_FALSE; - if ((!status) && (created_new_archive)) { - // It's a new archive and something went wrong, so just delete it. - int ignoredStatus = MZ_DELETE_FILE(pZip_filename); - (void)ignoredStatus; - } - return status; -} - -void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, - const char *pArchive_name, - size_t *pSize, mz_uint flags) { - int file_index; - mz_zip_archive zip_archive; - void *p = NULL; - - if (pSize) *pSize = 0; - - if ((!pZip_filename) || (!pArchive_name)) return NULL; - - MZ_CLEAR_OBJ(zip_archive); - if (!mz_zip_reader_init_file( - &zip_archive, pZip_filename, - flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY)) - return NULL; - - if ((file_index = mz_zip_reader_locate_file(&zip_archive, pArchive_name, NULL, - flags)) >= 0) - p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags); - - mz_zip_reader_end(&zip_archive); - return p; -} - -#endif // #ifndef MINIZ_NO_STDIO - -#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS - -#endif // #ifndef MINIZ_NO_ARCHIVE_APIS - -#ifdef __cplusplus -} -#endif - -#endif // MINIZ_HEADER_FILE_ONLY - -/* - This is free and unencumbered software released into the public domain. - - Anyone is free to copy, modify, publish, use, compile, sell, or - distribute this software, either in source code form or as a compiled - binary, for any purpose, commercial or non-commercial, and by any - means. - - In jurisdictions that recognize copyright laws, the author or authors - of this software dedicate any and all copyright interest in the - software to the public domain. We make this dedication for the benefit - of the public at large and to the detriment of our heirs and - successors. We intend this dedication to be an overt act of - relinquishment in perpetuity of all present and future rights to this - software under copyright law. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR - OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE. - - For more information, please refer to -*/ - -// ---------------------- end of miniz ---------------------------------------- - -#ifdef __clang__ -#pragma clang diagnostic pop -#endif - -#ifdef _MSC_VER -#pragma warning(pop) -#endif -} // namespace miniz -#else - -// Reuse MINIZ_LITTE_ENDIAN macro - -#if defined(__sparcv9) -// Big endian -#else -#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU -// Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. -#define MINIZ_LITTLE_ENDIAN 1 -#endif -#endif - -#endif // TINYEXR_USE_MINIZ - -// static bool IsBigEndian(void) { -// union { -// unsigned int i; -// char c[4]; -// } bint = {0x01020304}; -// -// return bint.c[0] == 1; -//} - -static void SetErrorMessage(const std::string &msg, const char **err) { - if (err) { -#ifdef _WIN32 - (*err) = _strdup(msg.c_str()); -#else - (*err) = strdup(msg.c_str()); -#endif - } -} - -static const int kEXRVersionSize = 8; - -static void cpy2(unsigned short *dst_val, const unsigned short *src_val) { - unsigned char *dst = reinterpret_cast(dst_val); - const unsigned char *src = reinterpret_cast(src_val); - - dst[0] = src[0]; - dst[1] = src[1]; -} - -static void swap2(unsigned short *val) { -#ifdef MINIZ_LITTLE_ENDIAN - (void)val; -#else - unsigned short tmp = *val; - unsigned char *dst = reinterpret_cast(val); - unsigned char *src = reinterpret_cast(&tmp); - - dst[0] = src[1]; - dst[1] = src[0]; -#endif -} - -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wunused-function" -#endif - -#ifdef __GNUC__ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wunused-function" -#endif -static void cpy4(int *dst_val, const int *src_val) { - unsigned char *dst = reinterpret_cast(dst_val); - const unsigned char *src = reinterpret_cast(src_val); - - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; -} - -static void cpy4(unsigned int *dst_val, const unsigned int *src_val) { - unsigned char *dst = reinterpret_cast(dst_val); - const unsigned char *src = reinterpret_cast(src_val); - - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; -} - -static void cpy4(float *dst_val, const float *src_val) { - unsigned char *dst = reinterpret_cast(dst_val); - const unsigned char *src = reinterpret_cast(src_val); - - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; -} -#ifdef __clang__ -#pragma clang diagnostic pop -#endif - -#ifdef __GNUC__ -#pragma GCC diagnostic pop -#endif - -static void swap4(unsigned int *val) { -#ifdef MINIZ_LITTLE_ENDIAN - (void)val; -#else - unsigned int tmp = *val; - unsigned char *dst = reinterpret_cast(val); - unsigned char *src = reinterpret_cast(&tmp); - - dst[0] = src[3]; - dst[1] = src[2]; - dst[2] = src[1]; - dst[3] = src[0]; -#endif -} - -#if 0 -static void cpy8(tinyexr::tinyexr_uint64 *dst_val, const tinyexr::tinyexr_uint64 *src_val) { - unsigned char *dst = reinterpret_cast(dst_val); - const unsigned char *src = reinterpret_cast(src_val); - - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; - dst[4] = src[4]; - dst[5] = src[5]; - dst[6] = src[6]; - dst[7] = src[7]; -} -#endif - -static void swap8(tinyexr::tinyexr_uint64 *val) { -#ifdef MINIZ_LITTLE_ENDIAN - (void)val; -#else - tinyexr::tinyexr_uint64 tmp = (*val); - unsigned char *dst = reinterpret_cast(val); - unsigned char *src = reinterpret_cast(&tmp); - - dst[0] = src[7]; - dst[1] = src[6]; - dst[2] = src[5]; - dst[3] = src[4]; - dst[4] = src[3]; - dst[5] = src[2]; - dst[6] = src[1]; - dst[7] = src[0]; -#endif -} - -// https://gist.github.com/rygorous/2156668 -// Reuse MINIZ_LITTLE_ENDIAN flag from miniz. -union FP32 { - unsigned int u; - float f; - struct { -#if MINIZ_LITTLE_ENDIAN - unsigned int Mantissa : 23; - unsigned int Exponent : 8; - unsigned int Sign : 1; -#else - unsigned int Sign : 1; - unsigned int Exponent : 8; - unsigned int Mantissa : 23; -#endif - } s; -}; - -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wpadded" -#endif - -union FP16 { - unsigned short u; - struct { -#if MINIZ_LITTLE_ENDIAN - unsigned int Mantissa : 10; - unsigned int Exponent : 5; - unsigned int Sign : 1; -#else - unsigned int Sign : 1; - unsigned int Exponent : 5; - unsigned int Mantissa : 10; -#endif - } s; -}; - -#ifdef __clang__ -#pragma clang diagnostic pop -#endif - -static FP32 half_to_float(FP16 h) { - static const FP32 magic = {113 << 23}; - static const unsigned int shifted_exp = 0x7c00 - << 13; // exponent mask after shift - FP32 o; - - o.u = (h.u & 0x7fffU) << 13U; // exponent/mantissa bits - unsigned int exp_ = shifted_exp & o.u; // just the exponent - o.u += (127 - 15) << 23; // exponent adjust - - // handle exponent special cases - if (exp_ == shifted_exp) // Inf/NaN? - o.u += (128 - 16) << 23; // extra exp adjust - else if (exp_ == 0) // Zero/Denormal? - { - o.u += 1 << 23; // extra exp adjust - o.f -= magic.f; // renormalize - } - - o.u |= (h.u & 0x8000U) << 16U; // sign bit - return o; -} - -static FP16 float_to_half_full(FP32 f) { - FP16 o = {0}; - - // Based on ISPC reference code (with minor modifications) - if (f.s.Exponent == 0) // Signed zero/denormal (which will underflow) - o.s.Exponent = 0; - else if (f.s.Exponent == 255) // Inf or NaN (all exponent bits set) - { - o.s.Exponent = 31; - o.s.Mantissa = f.s.Mantissa ? 0x200 : 0; // NaN->qNaN and Inf->Inf - } else // Normalized number - { - // Exponent unbias the single, then bias the halfp - int newexp = f.s.Exponent - 127 + 15; - if (newexp >= 31) // Overflow, return signed infinity - o.s.Exponent = 31; - else if (newexp <= 0) // Underflow - { - if ((14 - newexp) <= 24) // Mantissa might be non-zero - { - unsigned int mant = f.s.Mantissa | 0x800000; // Hidden 1 bit - o.s.Mantissa = mant >> (14 - newexp); - if ((mant >> (13 - newexp)) & 1) // Check for rounding - o.u++; // Round, might overflow into exp bit, but this is OK - } - } else { - o.s.Exponent = static_cast(newexp); - o.s.Mantissa = f.s.Mantissa >> 13; - if (f.s.Mantissa & 0x1000) // Check for rounding - o.u++; // Round, might overflow to inf, this is OK - } - } - - o.s.Sign = f.s.Sign; - return o; -} - -// NOTE: From OpenEXR code -// #define IMF_INCREASING_Y 0 -// #define IMF_DECREASING_Y 1 -// #define IMF_RAMDOM_Y 2 -// -// #define IMF_NO_COMPRESSION 0 -// #define IMF_RLE_COMPRESSION 1 -// #define IMF_ZIPS_COMPRESSION 2 -// #define IMF_ZIP_COMPRESSION 3 -// #define IMF_PIZ_COMPRESSION 4 -// #define IMF_PXR24_COMPRESSION 5 -// #define IMF_B44_COMPRESSION 6 -// #define IMF_B44A_COMPRESSION 7 - -#ifdef __clang__ -#pragma clang diagnostic push - -#if __has_warning("-Wzero-as-null-pointer-constant") -#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" -#endif - -#endif - -static const char *ReadString(std::string *s, const char *ptr, size_t len) { - // Read untile NULL(\0). - const char *p = ptr; - const char *q = ptr; - while ((size_t(q - ptr) < len) && (*q) != 0) { - q++; - } - - if (size_t(q - ptr) >= len) { - (*s) = std::string(); - return NULL; - } - - (*s) = std::string(p, q); - - return q + 1; // skip '\0' -} - -static bool ReadAttribute(std::string *name, std::string *type, - std::vector *data, size_t *marker_size, - const char *marker, size_t size) { - size_t name_len = strnlen(marker, size); - if (name_len == size) { - // String does not have a terminating character. - return false; - } - *name = std::string(marker, name_len); - - marker += name_len + 1; - size -= name_len + 1; - - size_t type_len = strnlen(marker, size); - if (type_len == size) { - return false; - } - *type = std::string(marker, type_len); - - marker += type_len + 1; - size -= type_len + 1; - - if (size < sizeof(uint32_t)) { - return false; - } - - uint32_t data_len; - memcpy(&data_len, marker, sizeof(uint32_t)); - tinyexr::swap4(reinterpret_cast(&data_len)); - - if (data_len == 0) { - if ((*type).compare("string") == 0) { - // Accept empty string attribute. - - marker += sizeof(uint32_t); - size -= sizeof(uint32_t); - - *marker_size = name_len + 1 + type_len + 1 + sizeof(uint32_t); - - data->resize(1); - (*data)[0] = '\0'; - - return true; - } else { - return false; - } - } - - marker += sizeof(uint32_t); - size -= sizeof(uint32_t); - - if (size < data_len) { - return false; - } - - data->resize(static_cast(data_len)); - memcpy(&data->at(0), marker, static_cast(data_len)); - - *marker_size = name_len + 1 + type_len + 1 + sizeof(uint32_t) + data_len; - return true; -} - -static void WriteAttributeToMemory(std::vector *out, - const char *name, const char *type, - const unsigned char *data, int len) { - out->insert(out->end(), name, name + strlen(name) + 1); - out->insert(out->end(), type, type + strlen(type) + 1); - - int outLen = len; - tinyexr::swap4(reinterpret_cast(&outLen)); - out->insert(out->end(), reinterpret_cast(&outLen), - reinterpret_cast(&outLen) + sizeof(int)); - out->insert(out->end(), data, data + len); -} - -typedef struct { - std::string name; // less than 255 bytes long - int pixel_type; - int x_sampling; - int y_sampling; - unsigned char p_linear; - unsigned char pad[3]; -} ChannelInfo; - -typedef struct HeaderInfo { - std::vector channels; - std::vector attributes; - - int data_window[4]; - int line_order; - int display_window[4]; - float screen_window_center[2]; - float screen_window_width; - float pixel_aspect_ratio; - - int chunk_count; - - // Tiled format - int tile_size_x; - int tile_size_y; - int tile_level_mode; - int tile_rounding_mode; - - unsigned int header_len; - - int compression_type; - - void clear() { - channels.clear(); - attributes.clear(); - - data_window[0] = 0; - data_window[1] = 0; - data_window[2] = 0; - data_window[3] = 0; - line_order = 0; - display_window[0] = 0; - display_window[1] = 0; - display_window[2] = 0; - display_window[3] = 0; - screen_window_center[0] = 0.0f; - screen_window_center[1] = 0.0f; - screen_window_width = 0.0f; - pixel_aspect_ratio = 0.0f; - - chunk_count = 0; - - // Tiled format - tile_size_x = 0; - tile_size_y = 0; - tile_level_mode = 0; - tile_rounding_mode = 0; - - header_len = 0; - compression_type = 0; - } -} HeaderInfo; - -static bool ReadChannelInfo(std::vector &channels, - const std::vector &data) { - const char *p = reinterpret_cast(&data.at(0)); - - for (;;) { - if ((*p) == 0) { - break; - } - ChannelInfo info; - - tinyexr_int64 data_len = static_cast(data.size()) - - (p - reinterpret_cast(data.data())); - if (data_len < 0) { - return false; - } - - p = ReadString(&info.name, p, size_t(data_len)); - if ((p == NULL) && (info.name.empty())) { - // Buffer overrun. Issue #51. - return false; - } - - const unsigned char *data_end = - reinterpret_cast(p) + 16; - if (data_end >= (data.data() + data.size())) { - return false; - } - - memcpy(&info.pixel_type, p, sizeof(int)); - p += 4; - info.p_linear = static_cast(p[0]); // uchar - p += 1 + 3; // reserved: uchar[3] - memcpy(&info.x_sampling, p, sizeof(int)); // int - p += 4; - memcpy(&info.y_sampling, p, sizeof(int)); // int - p += 4; - - tinyexr::swap4(reinterpret_cast(&info.pixel_type)); - tinyexr::swap4(reinterpret_cast(&info.x_sampling)); - tinyexr::swap4(reinterpret_cast(&info.y_sampling)); - - channels.push_back(info); - } - - return true; -} - -static void WriteChannelInfo(std::vector &data, - const std::vector &channels) { - size_t sz = 0; - - // Calculate total size. - for (size_t c = 0; c < channels.size(); c++) { - sz += strlen(channels[c].name.c_str()) + 1; // +1 for \0 - sz += 16; // 4 * int - } - data.resize(sz + 1); - - unsigned char *p = &data.at(0); - - for (size_t c = 0; c < channels.size(); c++) { - memcpy(p, channels[c].name.c_str(), strlen(channels[c].name.c_str())); - p += strlen(channels[c].name.c_str()); - (*p) = '\0'; - p++; - - int pixel_type = channels[c].pixel_type; - int x_sampling = channels[c].x_sampling; - int y_sampling = channels[c].y_sampling; - tinyexr::swap4(reinterpret_cast(&pixel_type)); - tinyexr::swap4(reinterpret_cast(&x_sampling)); - tinyexr::swap4(reinterpret_cast(&y_sampling)); - - memcpy(p, &pixel_type, sizeof(int)); - p += sizeof(int); - - (*p) = channels[c].p_linear; - p += 4; - - memcpy(p, &x_sampling, sizeof(int)); - p += sizeof(int); - - memcpy(p, &y_sampling, sizeof(int)); - p += sizeof(int); - } - - (*p) = '\0'; -} - -static void CompressZip(unsigned char *dst, - tinyexr::tinyexr_uint64 &compressedSize, - const unsigned char *src, unsigned long src_size) { - std::vector tmpBuf(src_size); - - // - // Apply EXR-specific? postprocess. Grabbed from OpenEXR's - // ImfZipCompressor.cpp - // - - // - // Reorder the pixel data. - // - - const char *srcPtr = reinterpret_cast(src); - - { - char *t1 = reinterpret_cast(&tmpBuf.at(0)); - char *t2 = reinterpret_cast(&tmpBuf.at(0)) + (src_size + 1) / 2; - const char *stop = srcPtr + src_size; - - for (;;) { - if (srcPtr < stop) - *(t1++) = *(srcPtr++); - else - break; - - if (srcPtr < stop) - *(t2++) = *(srcPtr++); - else - break; - } - } - - // - // Predictor. - // - - { - unsigned char *t = &tmpBuf.at(0) + 1; - unsigned char *stop = &tmpBuf.at(0) + src_size; - int p = t[-1]; - - while (t < stop) { - int d = int(t[0]) - p + (128 + 256); - p = t[0]; - t[0] = static_cast(d); - ++t; - } - } - -#if TINYEXR_USE_MINIZ - // - // Compress the data using miniz - // - - miniz::mz_ulong outSize = miniz::mz_compressBound(src_size); - int ret = miniz::mz_compress( - dst, &outSize, static_cast(&tmpBuf.at(0)), - src_size); - assert(ret == miniz::MZ_OK); - (void)ret; - - compressedSize = outSize; -#else - uLong outSize = compressBound(static_cast(src_size)); - int ret = compress(dst, &outSize, static_cast(&tmpBuf.at(0)), - src_size); - assert(ret == Z_OK); - - compressedSize = outSize; -#endif - - // Use uncompressed data when compressed data is larger than uncompressed. - // (Issue 40) - if (compressedSize >= src_size) { - compressedSize = src_size; - memcpy(dst, src, src_size); - } -} - -static bool DecompressZip(unsigned char *dst, - unsigned long *uncompressed_size /* inout */, - const unsigned char *src, unsigned long src_size) { - if ((*uncompressed_size) == src_size) { - // Data is not compressed(Issue 40). - memcpy(dst, src, src_size); - return true; - } - std::vector tmpBuf(*uncompressed_size); - -#if TINYEXR_USE_MINIZ - int ret = - miniz::mz_uncompress(&tmpBuf.at(0), uncompressed_size, src, src_size); - if (miniz::MZ_OK != ret) { - return false; - } -#else - int ret = uncompress(&tmpBuf.at(0), uncompressed_size, src, src_size); - if (Z_OK != ret) { - return false; - } -#endif - - // - // Apply EXR-specific? postprocess. Grabbed from OpenEXR's - // ImfZipCompressor.cpp - // - - // Predictor. - { - unsigned char *t = &tmpBuf.at(0) + 1; - unsigned char *stop = &tmpBuf.at(0) + (*uncompressed_size); - - while (t < stop) { - int d = int(t[-1]) + int(t[0]) - 128; - t[0] = static_cast(d); - ++t; - } - } - - // Reorder the pixel data. - { - const char *t1 = reinterpret_cast(&tmpBuf.at(0)); - const char *t2 = reinterpret_cast(&tmpBuf.at(0)) + - (*uncompressed_size + 1) / 2; - char *s = reinterpret_cast(dst); - char *stop = s + (*uncompressed_size); - - for (;;) { - if (s < stop) - *(s++) = *(t1++); - else - break; - - if (s < stop) - *(s++) = *(t2++); - else - break; - } - } - - return true; -} - -// RLE code from OpenEXR -------------------------------------- - -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wsign-conversion" -#endif - -#ifdef _MSC_VER -#pragma warning(push) -#pragma warning(disable : 4204) // nonstandard extension used : non-constant - // aggregate initializer (also supported by GNU - // C and C99, so no big deal) -#pragma warning(disable : 4244) // 'initializing': conversion from '__int64' to - // 'int', possible loss of data -#pragma warning(disable : 4267) // 'argument': conversion from '__int64' to - // 'int', possible loss of data -#pragma warning(disable : 4996) // 'strdup': The POSIX name for this item is - // deprecated. Instead, use the ISO C and C++ - // conformant name: _strdup. -#endif - -const int MIN_RUN_LENGTH = 3; -const int MAX_RUN_LENGTH = 127; - -// -// Compress an array of bytes, using run-length encoding, -// and return the length of the compressed data. -// - -static int rleCompress(int inLength, const char in[], signed char out[]) { - const char *inEnd = in + inLength; - const char *runStart = in; - const char *runEnd = in + 1; - signed char *outWrite = out; - - while (runStart < inEnd) { - while (runEnd < inEnd && *runStart == *runEnd && - runEnd - runStart - 1 < MAX_RUN_LENGTH) { - ++runEnd; - } - - if (runEnd - runStart >= MIN_RUN_LENGTH) { - // - // Compressable run - // - - *outWrite++ = static_cast(runEnd - runStart) - 1; - *outWrite++ = *(reinterpret_cast(runStart)); - runStart = runEnd; - } else { - // - // Uncompressable run - // - - while (runEnd < inEnd && - ((runEnd + 1 >= inEnd || *runEnd != *(runEnd + 1)) || - (runEnd + 2 >= inEnd || *(runEnd + 1) != *(runEnd + 2))) && - runEnd - runStart < MAX_RUN_LENGTH) { - ++runEnd; - } - - *outWrite++ = static_cast(runStart - runEnd); - - while (runStart < runEnd) { - *outWrite++ = *(reinterpret_cast(runStart++)); - } - } - - ++runEnd; - } - - return static_cast(outWrite - out); -} - -// -// Uncompress an array of bytes compressed with rleCompress(). -// Returns the length of the oncompressed data, or 0 if the -// length of the uncompressed data would be more than maxLength. -// - -static int rleUncompress(int inLength, int maxLength, const signed char in[], - char out[]) { - char *outStart = out; - - while (inLength > 0) { - if (*in < 0) { - int count = -(static_cast(*in++)); - inLength -= count + 1; - - // Fixes #116: Add bounds check to in buffer. - if ((0 > (maxLength -= count)) || (inLength < 0)) return 0; - - memcpy(out, in, count); - out += count; - in += count; - } else { - int count = *in++; - inLength -= 2; - - if (0 > (maxLength -= count + 1)) return 0; - - memset(out, *reinterpret_cast(in), count + 1); - out += count + 1; - - in++; - } - } - - return static_cast(out - outStart); -} - -#ifdef __clang__ -#pragma clang diagnostic pop -#endif - -// End of RLE code from OpenEXR ----------------------------------- - -static void CompressRle(unsigned char *dst, - tinyexr::tinyexr_uint64 &compressedSize, - const unsigned char *src, unsigned long src_size) { - std::vector tmpBuf(src_size); - - // - // Apply EXR-specific? postprocess. Grabbed from OpenEXR's - // ImfRleCompressor.cpp - // - - // - // Reorder the pixel data. - // - - const char *srcPtr = reinterpret_cast(src); - - { - char *t1 = reinterpret_cast(&tmpBuf.at(0)); - char *t2 = reinterpret_cast(&tmpBuf.at(0)) + (src_size + 1) / 2; - const char *stop = srcPtr + src_size; - - for (;;) { - if (srcPtr < stop) - *(t1++) = *(srcPtr++); - else - break; - - if (srcPtr < stop) - *(t2++) = *(srcPtr++); - else - break; - } - } - - // - // Predictor. - // - - { - unsigned char *t = &tmpBuf.at(0) + 1; - unsigned char *stop = &tmpBuf.at(0) + src_size; - int p = t[-1]; - - while (t < stop) { - int d = int(t[0]) - p + (128 + 256); - p = t[0]; - t[0] = static_cast(d); - ++t; - } - } - - // outSize will be (srcSiz * 3) / 2 at max. - int outSize = rleCompress(static_cast(src_size), - reinterpret_cast(&tmpBuf.at(0)), - reinterpret_cast(dst)); - assert(outSize > 0); - - compressedSize = static_cast(outSize); - - // Use uncompressed data when compressed data is larger than uncompressed. - // (Issue 40) - if (compressedSize >= src_size) { - compressedSize = src_size; - memcpy(dst, src, src_size); - } -} - -static bool DecompressRle(unsigned char *dst, - const unsigned long uncompressed_size, - const unsigned char *src, unsigned long src_size) { - if (uncompressed_size == src_size) { - // Data is not compressed(Issue 40). - memcpy(dst, src, src_size); - return true; - } - - // Workaround for issue #112. - // TODO(syoyo): Add more robust out-of-bounds check in `rleUncompress`. - if (src_size <= 2) { - return false; - } - - std::vector tmpBuf(uncompressed_size); - - int ret = rleUncompress(static_cast(src_size), - static_cast(uncompressed_size), - reinterpret_cast(src), - reinterpret_cast(&tmpBuf.at(0))); - if (ret != static_cast(uncompressed_size)) { - return false; - } - - // - // Apply EXR-specific? postprocess. Grabbed from OpenEXR's - // ImfRleCompressor.cpp - // - - // Predictor. - { - unsigned char *t = &tmpBuf.at(0) + 1; - unsigned char *stop = &tmpBuf.at(0) + uncompressed_size; - - while (t < stop) { - int d = int(t[-1]) + int(t[0]) - 128; - t[0] = static_cast(d); - ++t; - } - } - - // Reorder the pixel data. - { - const char *t1 = reinterpret_cast(&tmpBuf.at(0)); - const char *t2 = reinterpret_cast(&tmpBuf.at(0)) + - (uncompressed_size + 1) / 2; - char *s = reinterpret_cast(dst); - char *stop = s + uncompressed_size; - - for (;;) { - if (s < stop) - *(s++) = *(t1++); - else - break; - - if (s < stop) - *(s++) = *(t2++); - else - break; - } - } - - return true; -} - -#if TINYEXR_USE_PIZ - -#ifdef __clang__ -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wc++11-long-long" -#pragma clang diagnostic ignored "-Wold-style-cast" -#pragma clang diagnostic ignored "-Wpadded" -#pragma clang diagnostic ignored "-Wsign-conversion" -#pragma clang diagnostic ignored "-Wc++11-extensions" -#pragma clang diagnostic ignored "-Wconversion" -#pragma clang diagnostic ignored "-Wc++98-compat-pedantic" - -#if __has_warning("-Wcast-qual") -#pragma clang diagnostic ignored "-Wcast-qual" -#endif - -#endif - -// -// PIZ compress/uncompress, based on OpenEXR's ImfPizCompressor.cpp -// -// ----------------------------------------------------------------- -// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas -// Digital Ltd. LLC) -// (3 clause BSD license) -// - -struct PIZChannelData { - unsigned short *start; - unsigned short *end; - int nx; - int ny; - int ys; - int size; -}; - -//----------------------------------------------------------------------------- -// -// 16-bit Haar Wavelet encoding and decoding -// -// The source code in this file is derived from the encoding -// and decoding routines written by Christian Rouet for his -// PIZ image file format. -// -//----------------------------------------------------------------------------- - -// -// Wavelet basis functions without modulo arithmetic; they produce -// the best compression ratios when the wavelet-transformed data are -// Huffman-encoded, but the wavelet transform works only for 14-bit -// data (untransformed data values must be less than (1 << 14)). -// - -inline void wenc14(unsigned short a, unsigned short b, unsigned short &l, - unsigned short &h) { - short as = static_cast(a); - short bs = static_cast(b); - - short ms = (as + bs) >> 1; - short ds = as - bs; - - l = static_cast(ms); - h = static_cast(ds); -} - -inline void wdec14(unsigned short l, unsigned short h, unsigned short &a, - unsigned short &b) { - short ls = static_cast(l); - short hs = static_cast(h); - - int hi = hs; - int ai = ls + (hi & 1) + (hi >> 1); - - short as = static_cast(ai); - short bs = static_cast(ai - hi); - - a = static_cast(as); - b = static_cast(bs); -} - -// -// Wavelet basis functions with modulo arithmetic; they work with full -// 16-bit data, but Huffman-encoding the wavelet-transformed data doesn't -// compress the data quite as well. -// - -const int NBITS = 16; -const int A_OFFSET = 1 << (NBITS - 1); -const int M_OFFSET = 1 << (NBITS - 1); -const int MOD_MASK = (1 << NBITS) - 1; - -inline void wenc16(unsigned short a, unsigned short b, unsigned short &l, - unsigned short &h) { - int ao = (a + A_OFFSET) & MOD_MASK; - int m = ((ao + b) >> 1); - int d = ao - b; - - if (d < 0) m = (m + M_OFFSET) & MOD_MASK; - - d &= MOD_MASK; - - l = static_cast(m); - h = static_cast(d); -} - -inline void wdec16(unsigned short l, unsigned short h, unsigned short &a, - unsigned short &b) { - int m = l; - int d = h; - int bb = (m - (d >> 1)) & MOD_MASK; - int aa = (d + bb - A_OFFSET) & MOD_MASK; - b = static_cast(bb); - a = static_cast(aa); -} - -// -// 2D Wavelet encoding: -// - -static void wav2Encode( - unsigned short *in, // io: values are transformed in place - int nx, // i : x size - int ox, // i : x offset - int ny, // i : y size - int oy, // i : y offset - unsigned short mx) // i : maximum in[x][y] value -{ - bool w14 = (mx < (1 << 14)); - int n = (nx > ny) ? ny : nx; - int p = 1; // == 1 << level - int p2 = 2; // == 1 << (level+1) - - // - // Hierachical loop on smaller dimension n - // - - while (p2 <= n) { - unsigned short *py = in; - unsigned short *ey = in + oy * (ny - p2); - int oy1 = oy * p; - int oy2 = oy * p2; - int ox1 = ox * p; - int ox2 = ox * p2; - unsigned short i00, i01, i10, i11; - - // - // Y loop - // - - for (; py <= ey; py += oy2) { - unsigned short *px = py; - unsigned short *ex = py + ox * (nx - p2); - - // - // X loop - // - - for (; px <= ex; px += ox2) { - unsigned short *p01 = px + ox1; - unsigned short *p10 = px + oy1; - unsigned short *p11 = p10 + ox1; - - // - // 2D wavelet encoding - // - - if (w14) { - wenc14(*px, *p01, i00, i01); - wenc14(*p10, *p11, i10, i11); - wenc14(i00, i10, *px, *p10); - wenc14(i01, i11, *p01, *p11); - } else { - wenc16(*px, *p01, i00, i01); - wenc16(*p10, *p11, i10, i11); - wenc16(i00, i10, *px, *p10); - wenc16(i01, i11, *p01, *p11); - } - } - - // - // Encode (1D) odd column (still in Y loop) - // - - if (nx & p) { - unsigned short *p10 = px + oy1; - - if (w14) - wenc14(*px, *p10, i00, *p10); - else - wenc16(*px, *p10, i00, *p10); - - *px = i00; - } - } - - // - // Encode (1D) odd line (must loop in X) - // - - if (ny & p) { - unsigned short *px = py; - unsigned short *ex = py + ox * (nx - p2); - - for (; px <= ex; px += ox2) { - unsigned short *p01 = px + ox1; - - if (w14) - wenc14(*px, *p01, i00, *p01); - else - wenc16(*px, *p01, i00, *p01); - - *px = i00; - } - } - - // - // Next level - // - - p = p2; - p2 <<= 1; - } -} - -// -// 2D Wavelet decoding: -// - -static void wav2Decode( - unsigned short *in, // io: values are transformed in place - int nx, // i : x size - int ox, // i : x offset - int ny, // i : y size - int oy, // i : y offset - unsigned short mx) // i : maximum in[x][y] value -{ - bool w14 = (mx < (1 << 14)); - int n = (nx > ny) ? ny : nx; - int p = 1; - int p2; - - // - // Search max level - // - - while (p <= n) p <<= 1; - - p >>= 1; - p2 = p; - p >>= 1; - - // - // Hierarchical loop on smaller dimension n - // - - while (p >= 1) { - unsigned short *py = in; - unsigned short *ey = in + oy * (ny - p2); - int oy1 = oy * p; - int oy2 = oy * p2; - int ox1 = ox * p; - int ox2 = ox * p2; - unsigned short i00, i01, i10, i11; - - // - // Y loop - // - - for (; py <= ey; py += oy2) { - unsigned short *px = py; - unsigned short *ex = py + ox * (nx - p2); - - // - // X loop - // - - for (; px <= ex; px += ox2) { - unsigned short *p01 = px + ox1; - unsigned short *p10 = px + oy1; - unsigned short *p11 = p10 + ox1; - - // - // 2D wavelet decoding - // - - if (w14) { - wdec14(*px, *p10, i00, i10); - wdec14(*p01, *p11, i01, i11); - wdec14(i00, i01, *px, *p01); - wdec14(i10, i11, *p10, *p11); - } else { - wdec16(*px, *p10, i00, i10); - wdec16(*p01, *p11, i01, i11); - wdec16(i00, i01, *px, *p01); - wdec16(i10, i11, *p10, *p11); - } - } - - // - // Decode (1D) odd column (still in Y loop) - // - - if (nx & p) { - unsigned short *p10 = px + oy1; - - if (w14) - wdec14(*px, *p10, i00, *p10); - else - wdec16(*px, *p10, i00, *p10); - - *px = i00; - } - } - - // - // Decode (1D) odd line (must loop in X) - // - - if (ny & p) { - unsigned short *px = py; - unsigned short *ex = py + ox * (nx - p2); - - for (; px <= ex; px += ox2) { - unsigned short *p01 = px + ox1; - - if (w14) - wdec14(*px, *p01, i00, *p01); - else - wdec16(*px, *p01, i00, *p01); - - *px = i00; - } - } - - // - // Next level - // - - p2 = p; - p >>= 1; - } -} - -//----------------------------------------------------------------------------- -// -// 16-bit Huffman compression and decompression. -// -// The source code in this file is derived from the 8-bit -// Huffman compression and decompression routines written -// by Christian Rouet for his PIZ image file format. -// -//----------------------------------------------------------------------------- - -// Adds some modification for tinyexr. - -const int HUF_ENCBITS = 16; // literal (value) bit length -const int HUF_DECBITS = 14; // decoding bit size (>= 8) - -const int HUF_ENCSIZE = (1 << HUF_ENCBITS) + 1; // encoding table size -const int HUF_DECSIZE = 1 << HUF_DECBITS; // decoding table size -const int HUF_DECMASK = HUF_DECSIZE - 1; - -struct HufDec { // short code long code - //------------------------------- - int len : 8; // code length 0 - int lit : 24; // lit p size - int *p; // 0 lits -}; - -inline long long hufLength(long long code) { return code & 63; } - -inline long long hufCode(long long code) { return code >> 6; } - -inline void outputBits(int nBits, long long bits, long long &c, int &lc, - char *&out) { - c <<= nBits; - lc += nBits; - - c |= bits; - - while (lc >= 8) *out++ = static_cast((c >> (lc -= 8))); -} - -inline long long getBits(int nBits, long long &c, int &lc, const char *&in) { - while (lc < nBits) { - c = (c << 8) | *(reinterpret_cast(in++)); - lc += 8; - } - - lc -= nBits; - return (c >> lc) & ((1 << nBits) - 1); -} - -// -// ENCODING TABLE BUILDING & (UN)PACKING -// - -// -// Build a "canonical" Huffman code table: -// - for each (uncompressed) symbol, hcode contains the length -// of the corresponding code (in the compressed data) -// - canonical codes are computed and stored in hcode -// - the rules for constructing canonical codes are as follows: -// * shorter codes (if filled with zeroes to the right) -// have a numerically higher value than longer codes -// * for codes with the same length, numerical values -// increase with numerical symbol values -// - because the canonical code table can be constructed from -// symbol lengths alone, the code table can be transmitted -// without sending the actual code values -// - see http://www.compressconsult.com/huffman/ -// - -static void hufCanonicalCodeTable(long long hcode[HUF_ENCSIZE]) { - long long n[59]; - - // - // For each i from 0 through 58, count the - // number of different codes of length i, and - // store the count in n[i]. - // - - for (int i = 0; i <= 58; ++i) n[i] = 0; - - for (int i = 0; i < HUF_ENCSIZE; ++i) n[hcode[i]] += 1; - - // - // For each i from 58 through 1, compute the - // numerically lowest code with length i, and - // store that code in n[i]. - // - - long long c = 0; - - for (int i = 58; i > 0; --i) { - long long nc = ((c + n[i]) >> 1); - n[i] = c; - c = nc; - } - - // - // hcode[i] contains the length, l, of the - // code for symbol i. Assign the next available - // code of length l to the symbol and store both - // l and the code in hcode[i]. - // - - for (int i = 0; i < HUF_ENCSIZE; ++i) { - int l = static_cast(hcode[i]); - - if (l > 0) hcode[i] = l | (n[l]++ << 6); - } -} - -// -// Compute Huffman codes (based on frq input) and store them in frq: -// - code structure is : [63:lsb - 6:msb] | [5-0: bit length]; -// - max code length is 58 bits; -// - codes outside the range [im-iM] have a null length (unused values); -// - original frequencies are destroyed; -// - encoding tables are used by hufEncode() and hufBuildDecTable(); -// - -struct FHeapCompare { - bool operator()(long long *a, long long *b) { return *a > *b; } -}; - -static void hufBuildEncTable( - long long *frq, // io: input frequencies [HUF_ENCSIZE], output table - int *im, // o: min frq index - int *iM) // o: max frq index -{ - // - // This function assumes that when it is called, array frq - // indicates the frequency of all possible symbols in the data - // that are to be Huffman-encoded. (frq[i] contains the number - // of occurrences of symbol i in the data.) - // - // The loop below does three things: - // - // 1) Finds the minimum and maximum indices that point - // to non-zero entries in frq: - // - // frq[im] != 0, and frq[i] == 0 for all i < im - // frq[iM] != 0, and frq[i] == 0 for all i > iM - // - // 2) Fills array fHeap with pointers to all non-zero - // entries in frq. - // - // 3) Initializes array hlink such that hlink[i] == i - // for all array entries. - // - - std::vector hlink(HUF_ENCSIZE); - std::vector fHeap(HUF_ENCSIZE); - - *im = 0; - - while (!frq[*im]) (*im)++; - - int nf = 0; - - for (int i = *im; i < HUF_ENCSIZE; i++) { - hlink[i] = i; - - if (frq[i]) { - fHeap[nf] = &frq[i]; - nf++; - *iM = i; - } - } - - // - // Add a pseudo-symbol, with a frequency count of 1, to frq; - // adjust the fHeap and hlink array accordingly. Function - // hufEncode() uses the pseudo-symbol for run-length encoding. - // - - (*iM)++; - frq[*iM] = 1; - fHeap[nf] = &frq[*iM]; - nf++; - - // - // Build an array, scode, such that scode[i] contains the number - // of bits assigned to symbol i. Conceptually this is done by - // constructing a tree whose leaves are the symbols with non-zero - // frequency: - // - // Make a heap that contains all symbols with a non-zero frequency, - // with the least frequent symbol on top. - // - // Repeat until only one symbol is left on the heap: - // - // Take the two least frequent symbols off the top of the heap. - // Create a new node that has first two nodes as children, and - // whose frequency is the sum of the frequencies of the first - // two nodes. Put the new node back into the heap. - // - // The last node left on the heap is the root of the tree. For each - // leaf node, the distance between the root and the leaf is the length - // of the code for the corresponding symbol. - // - // The loop below doesn't actually build the tree; instead we compute - // the distances of the leaves from the root on the fly. When a new - // node is added to the heap, then that node's descendants are linked - // into a single linear list that starts at the new node, and the code - // lengths of the descendants (that is, their distance from the root - // of the tree) are incremented by one. - // - - std::make_heap(&fHeap[0], &fHeap[nf], FHeapCompare()); - - std::vector scode(HUF_ENCSIZE); - memset(scode.data(), 0, sizeof(long long) * HUF_ENCSIZE); - - while (nf > 1) { - // - // Find the indices, mm and m, of the two smallest non-zero frq - // values in fHeap, add the smallest frq to the second-smallest - // frq, and remove the smallest frq value from fHeap. - // - - int mm = fHeap[0] - frq; - std::pop_heap(&fHeap[0], &fHeap[nf], FHeapCompare()); - --nf; - - int m = fHeap[0] - frq; - std::pop_heap(&fHeap[0], &fHeap[nf], FHeapCompare()); - - frq[m] += frq[mm]; - std::push_heap(&fHeap[0], &fHeap[nf], FHeapCompare()); - - // - // The entries in scode are linked into lists with the - // entries in hlink serving as "next" pointers and with - // the end of a list marked by hlink[j] == j. - // - // Traverse the lists that start at scode[m] and scode[mm]. - // For each element visited, increment the length of the - // corresponding code by one bit. (If we visit scode[j] - // during the traversal, then the code for symbol j becomes - // one bit longer.) - // - // Merge the lists that start at scode[m] and scode[mm] - // into a single list that starts at scode[m]. - // - - // - // Add a bit to all codes in the first list. - // - - for (int j = m;; j = hlink[j]) { - scode[j]++; - - assert(scode[j] <= 58); - - if (hlink[j] == j) { - // - // Merge the two lists. - // - - hlink[j] = mm; - break; - } - } - - // - // Add a bit to all codes in the second list - // - - for (int j = mm;; j = hlink[j]) { - scode[j]++; - - assert(scode[j] <= 58); - - if (hlink[j] == j) break; - } - } - - // - // Build a canonical Huffman code table, replacing the code - // lengths in scode with (code, code length) pairs. Copy the - // code table from scode into frq. - // - - hufCanonicalCodeTable(scode.data()); - memcpy(frq, scode.data(), sizeof(long long) * HUF_ENCSIZE); -} - -// -// Pack an encoding table: -// - only code lengths, not actual codes, are stored -// - runs of zeroes are compressed as follows: -// -// unpacked packed -// -------------------------------- -// 1 zero 0 (6 bits) -// 2 zeroes 59 -// 3 zeroes 60 -// 4 zeroes 61 -// 5 zeroes 62 -// n zeroes (6 or more) 63 n-6 (6 + 8 bits) -// - -const int SHORT_ZEROCODE_RUN = 59; -const int LONG_ZEROCODE_RUN = 63; -const int SHORTEST_LONG_RUN = 2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN; -const int LONGEST_LONG_RUN = 255 + SHORTEST_LONG_RUN; - -static void hufPackEncTable( - const long long *hcode, // i : encoding table [HUF_ENCSIZE] - int im, // i : min hcode index - int iM, // i : max hcode index - char **pcode) // o: ptr to packed table (updated) -{ - char *p = *pcode; - long long c = 0; - int lc = 0; - - for (; im <= iM; im++) { - int l = hufLength(hcode[im]); - - if (l == 0) { - int zerun = 1; - - while ((im < iM) && (zerun < LONGEST_LONG_RUN)) { - if (hufLength(hcode[im + 1]) > 0) break; - im++; - zerun++; - } - - if (zerun >= 2) { - if (zerun >= SHORTEST_LONG_RUN) { - outputBits(6, LONG_ZEROCODE_RUN, c, lc, p); - outputBits(8, zerun - SHORTEST_LONG_RUN, c, lc, p); - } else { - outputBits(6, SHORT_ZEROCODE_RUN + zerun - 2, c, lc, p); - } - continue; - } - } - - outputBits(6, l, c, lc, p); - } - - if (lc > 0) *p++ = (unsigned char)(c << (8 - lc)); - - *pcode = p; -} - -// -// Unpack an encoding table packed by hufPackEncTable(): -// - -static bool hufUnpackEncTable( - const char **pcode, // io: ptr to packed table (updated) - int ni, // i : input size (in bytes) - int im, // i : min hcode index - int iM, // i : max hcode index - long long *hcode) // o: encoding table [HUF_ENCSIZE] -{ - memset(hcode, 0, sizeof(long long) * HUF_ENCSIZE); - - const char *p = *pcode; - long long c = 0; - int lc = 0; - - for (; im <= iM; im++) { - if (p - *pcode >= ni) { - return false; - } - - long long l = hcode[im] = getBits(6, c, lc, p); // code length - - if (l == (long long)LONG_ZEROCODE_RUN) { - if (p - *pcode > ni) { - return false; - } - - int zerun = getBits(8, c, lc, p) + SHORTEST_LONG_RUN; - - if (im + zerun > iM + 1) { - return false; - } - - while (zerun--) hcode[im++] = 0; - - im--; - } else if (l >= (long long)SHORT_ZEROCODE_RUN) { - int zerun = l - SHORT_ZEROCODE_RUN + 2; - - if (im + zerun > iM + 1) { - return false; - } - - while (zerun--) hcode[im++] = 0; - - im--; - } - } - - *pcode = const_cast(p); - - hufCanonicalCodeTable(hcode); - - return true; -} - -// -// DECODING TABLE BUILDING -// - -// -// Clear a newly allocated decoding table so that it contains only zeroes. -// - -static void hufClearDecTable(HufDec *hdecod) // io: (allocated by caller) -// decoding table [HUF_DECSIZE] -{ - for (int i = 0; i < HUF_DECSIZE; i++) { - hdecod[i].len = 0; - hdecod[i].lit = 0; - hdecod[i].p = NULL; - } - // memset(hdecod, 0, sizeof(HufDec) * HUF_DECSIZE); -} - -// -// Build a decoding hash table based on the encoding table hcode: -// - short codes (<= HUF_DECBITS) are resolved with a single table access; -// - long code entry allocations are not optimized, because long codes are -// unfrequent; -// - decoding tables are used by hufDecode(); -// - -static bool hufBuildDecTable(const long long *hcode, // i : encoding table - int im, // i : min index in hcode - int iM, // i : max index in hcode - HufDec *hdecod) // o: (allocated by caller) -// decoding table [HUF_DECSIZE] -{ - // - // Init hashtable & loop on all codes. - // Assumes that hufClearDecTable(hdecod) has already been called. - // - - for (; im <= iM; im++) { - long long c = hufCode(hcode[im]); - int l = hufLength(hcode[im]); - - if (c >> l) { - // - // Error: c is supposed to be an l-bit code, - // but c contains a value that is greater - // than the largest l-bit number. - // - - // invalidTableEntry(); - return false; - } - - if (l > HUF_DECBITS) { - // - // Long code: add a secondary entry - // - - HufDec *pl = hdecod + (c >> (l - HUF_DECBITS)); - - if (pl->len) { - // - // Error: a short code has already - // been stored in table entry *pl. - // - - // invalidTableEntry(); - return false; - } - - pl->lit++; - - if (pl->p) { - int *p = pl->p; - pl->p = new int[pl->lit]; - - for (int i = 0; i < pl->lit - 1; ++i) pl->p[i] = p[i]; - - delete[] p; - } else { - pl->p = new int[1]; - } - - pl->p[pl->lit - 1] = im; - } else if (l) { - // - // Short code: init all primary entries - // - - HufDec *pl = hdecod + (c << (HUF_DECBITS - l)); - - for (long long i = 1ULL << (HUF_DECBITS - l); i > 0; i--, pl++) { - if (pl->len || pl->p) { - // - // Error: a short code or a long code has - // already been stored in table entry *pl. - // - - // invalidTableEntry(); - return false; - } - - pl->len = l; - pl->lit = im; - } - } - } - - return true; -} - -// -// Free the long code entries of a decoding table built by hufBuildDecTable() -// - -static void hufFreeDecTable(HufDec *hdecod) // io: Decoding table -{ - for (int i = 0; i < HUF_DECSIZE; i++) { - if (hdecod[i].p) { - delete[] hdecod[i].p; - hdecod[i].p = 0; - } - } -} - -// -// ENCODING -// - -inline void outputCode(long long code, long long &c, int &lc, char *&out) { - outputBits(hufLength(code), hufCode(code), c, lc, out); -} - -inline void sendCode(long long sCode, int runCount, long long runCode, - long long &c, int &lc, char *&out) { - // - // Output a run of runCount instances of the symbol sCount. - // Output the symbols explicitly, or if that is shorter, output - // the sCode symbol once followed by a runCode symbol and runCount - // expressed as an 8-bit number. - // - - if (hufLength(sCode) + hufLength(runCode) + 8 < hufLength(sCode) * runCount) { - outputCode(sCode, c, lc, out); - outputCode(runCode, c, lc, out); - outputBits(8, runCount, c, lc, out); - } else { - while (runCount-- >= 0) outputCode(sCode, c, lc, out); - } -} - -// -// Encode (compress) ni values based on the Huffman encoding table hcode: -// - -static int hufEncode // return: output size (in bits) - (const long long *hcode, // i : encoding table - const unsigned short *in, // i : uncompressed input buffer - const int ni, // i : input buffer size (in bytes) - int rlc, // i : rl code - char *out) // o: compressed output buffer -{ - char *outStart = out; - long long c = 0; // bits not yet written to out - int lc = 0; // number of valid bits in c (LSB) - int s = in[0]; - int cs = 0; - - // - // Loop on input values - // - - for (int i = 1; i < ni; i++) { - // - // Count same values or send code - // - - if (s == in[i] && cs < 255) { - cs++; - } else { - sendCode(hcode[s], cs, hcode[rlc], c, lc, out); - cs = 0; - } - - s = in[i]; - } - - // - // Send remaining code - // - - sendCode(hcode[s], cs, hcode[rlc], c, lc, out); - - if (lc) *out = (c << (8 - lc)) & 0xff; - - return (out - outStart) * 8 + lc; -} - -// -// DECODING -// - -// -// In order to force the compiler to inline them, -// getChar() and getCode() are implemented as macros -// instead of "inline" functions. -// - -#define getChar(c, lc, in) \ - { \ - c = (c << 8) | *(unsigned char *)(in++); \ - lc += 8; \ - } - -#if 0 -#define getCode(po, rlc, c, lc, in, out, ob, oe) \ - { \ - if (po == rlc) { \ - if (lc < 8) getChar(c, lc, in); \ - \ - lc -= 8; \ - \ - unsigned char cs = (c >> lc); \ - \ - if (out + cs > oe) return false; \ - \ - /* TinyEXR issue 78 */ \ - unsigned short s = out[-1]; \ - \ - while (cs-- > 0) *out++ = s; \ - } else if (out < oe) { \ - *out++ = po; \ - } else { \ - return false; \ - } \ - } -#else -static bool getCode(int po, int rlc, long long &c, int &lc, const char *&in, - const char *in_end, unsigned short *&out, - const unsigned short *ob, const unsigned short *oe) { - (void)ob; - if (po == rlc) { - if (lc < 8) { - /* TinyEXR issue 78 */ - if ((in + 1) >= in_end) { - return false; - } - - getChar(c, lc, in); - } - - lc -= 8; - - unsigned char cs = (c >> lc); - - if (out + cs > oe) return false; - - // Bounds check for safety - // Issue 100. - if ((out - 1) < ob) return false; - unsigned short s = out[-1]; - - while (cs-- > 0) *out++ = s; - } else if (out < oe) { - *out++ = po; - } else { - return false; - } - return true; -} -#endif - -// -// Decode (uncompress) ni bits based on encoding & decoding tables: -// - -static bool hufDecode(const long long *hcode, // i : encoding table - const HufDec *hdecod, // i : decoding table - const char *in, // i : compressed input buffer - int ni, // i : input size (in bits) - int rlc, // i : run-length code - int no, // i : expected output size (in bytes) - unsigned short *out) // o: uncompressed output buffer -{ - long long c = 0; - int lc = 0; - unsigned short *outb = out; // begin - unsigned short *oe = out + no; // end - const char *ie = in + (ni + 7) / 8; // input byte size - - // - // Loop on input bytes - // - - while (in < ie) { - getChar(c, lc, in); - - // - // Access decoding table - // - - while (lc >= HUF_DECBITS) { - const HufDec pl = hdecod[(c >> (lc - HUF_DECBITS)) & HUF_DECMASK]; - - if (pl.len) { - // - // Get short code - // - - lc -= pl.len; - // std::cout << "lit = " << pl.lit << std::endl; - // std::cout << "rlc = " << rlc << std::endl; - // std::cout << "c = " << c << std::endl; - // std::cout << "lc = " << lc << std::endl; - // std::cout << "in = " << in << std::endl; - // std::cout << "out = " << out << std::endl; - // std::cout << "oe = " << oe << std::endl; - if (!getCode(pl.lit, rlc, c, lc, in, ie, out, outb, oe)) { - return false; - } - } else { - if (!pl.p) { - return false; - } - // invalidCode(); // wrong code - - // - // Search long code - // - - int j; - - for (j = 0; j < pl.lit; j++) { - int l = hufLength(hcode[pl.p[j]]); - - while (lc < l && in < ie) // get more bits - getChar(c, lc, in); - - if (lc >= l) { - if (hufCode(hcode[pl.p[j]]) == - ((c >> (lc - l)) & (((long long)(1) << l) - 1))) { - // - // Found : get long code - // - - lc -= l; - if (!getCode(pl.p[j], rlc, c, lc, in, ie, out, outb, oe)) { - return false; - } - break; - } - } - } - - if (j == pl.lit) { - return false; - // invalidCode(); // Not found - } - } - } - } - - // - // Get remaining (short) codes - // - - int i = (8 - ni) & 7; - c >>= i; - lc -= i; - - while (lc > 0) { - const HufDec pl = hdecod[(c << (HUF_DECBITS - lc)) & HUF_DECMASK]; - - if (pl.len) { - lc -= pl.len; - if (!getCode(pl.lit, rlc, c, lc, in, ie, out, outb, oe)) { - return false; - } - } else { - return false; - // invalidCode(); // wrong (long) code - } - } - - if (out - outb != no) { - return false; - } - // notEnoughData (); - - return true; -} - -static void countFrequencies(std::vector &freq, - const unsigned short data[/*n*/], int n) { - for (int i = 0; i < HUF_ENCSIZE; ++i) freq[i] = 0; - - for (int i = 0; i < n; ++i) ++freq[data[i]]; -} - -static void writeUInt(char buf[4], unsigned int i) { - unsigned char *b = (unsigned char *)buf; - - b[0] = i; - b[1] = i >> 8; - b[2] = i >> 16; - b[3] = i >> 24; -} - -static unsigned int readUInt(const char buf[4]) { - const unsigned char *b = (const unsigned char *)buf; - - return (b[0] & 0x000000ff) | ((b[1] << 8) & 0x0000ff00) | - ((b[2] << 16) & 0x00ff0000) | ((b[3] << 24) & 0xff000000); -} - -// -// EXTERNAL INTERFACE -// - -static int hufCompress(const unsigned short raw[], int nRaw, - char compressed[]) { - if (nRaw == 0) return 0; - - std::vector freq(HUF_ENCSIZE); - - countFrequencies(freq, raw, nRaw); - - int im = 0; - int iM = 0; - hufBuildEncTable(freq.data(), &im, &iM); - - char *tableStart = compressed + 20; - char *tableEnd = tableStart; - hufPackEncTable(freq.data(), im, iM, &tableEnd); - int tableLength = tableEnd - tableStart; - - char *dataStart = tableEnd; - int nBits = hufEncode(freq.data(), raw, nRaw, iM, dataStart); - int data_length = (nBits + 7) / 8; - - writeUInt(compressed, im); - writeUInt(compressed + 4, iM); - writeUInt(compressed + 8, tableLength); - writeUInt(compressed + 12, nBits); - writeUInt(compressed + 16, 0); // room for future extensions - - return dataStart + data_length - compressed; -} - -static bool hufUncompress(const char compressed[], int nCompressed, - std::vector *raw) { - if (nCompressed == 0) { - if (raw->size() != 0) return false; - - return false; - } - - int im = readUInt(compressed); - int iM = readUInt(compressed + 4); - // int tableLength = readUInt (compressed + 8); - int nBits = readUInt(compressed + 12); - - if (im < 0 || im >= HUF_ENCSIZE || iM < 0 || iM >= HUF_ENCSIZE) return false; - - const char *ptr = compressed + 20; - - // - // Fast decoder needs at least 2x64-bits of compressed data, and - // needs to be run-able on this platform. Otherwise, fall back - // to the original decoder - // - - // if (FastHufDecoder::enabled() && nBits > 128) - //{ - // FastHufDecoder fhd (ptr, nCompressed - (ptr - compressed), im, iM, iM); - // fhd.decode ((unsigned char*)ptr, nBits, raw, nRaw); - //} - // else - { - std::vector freq(HUF_ENCSIZE); - std::vector hdec(HUF_DECSIZE); - - hufClearDecTable(&hdec.at(0)); - - hufUnpackEncTable(&ptr, nCompressed - (ptr - compressed), im, iM, - &freq.at(0)); - - { - if (nBits > 8 * (nCompressed - (ptr - compressed))) { - return false; - } - - hufBuildDecTable(&freq.at(0), im, iM, &hdec.at(0)); - hufDecode(&freq.at(0), &hdec.at(0), ptr, nBits, iM, raw->size(), - raw->data()); - } - // catch (...) - //{ - // hufFreeDecTable (hdec); - // throw; - //} - - hufFreeDecTable(&hdec.at(0)); - } - - return true; -} - -// -// Functions to compress the range of values in the pixel data -// - -const int USHORT_RANGE = (1 << 16); -const int BITMAP_SIZE = (USHORT_RANGE >> 3); - -static void bitmapFromData(const unsigned short data[/*nData*/], int nData, - unsigned char bitmap[BITMAP_SIZE], - unsigned short &minNonZero, - unsigned short &maxNonZero) { - for (int i = 0; i < BITMAP_SIZE; ++i) bitmap[i] = 0; - - for (int i = 0; i < nData; ++i) bitmap[data[i] >> 3] |= (1 << (data[i] & 7)); - - bitmap[0] &= ~1; // zero is not explicitly stored in - // the bitmap; we assume that the - // data always contain zeroes - minNonZero = BITMAP_SIZE - 1; - maxNonZero = 0; - - for (int i = 0; i < BITMAP_SIZE; ++i) { - if (bitmap[i]) { - if (minNonZero > i) minNonZero = i; - if (maxNonZero < i) maxNonZero = i; - } - } -} - -static unsigned short forwardLutFromBitmap( - const unsigned char bitmap[BITMAP_SIZE], unsigned short lut[USHORT_RANGE]) { - int k = 0; - - for (int i = 0; i < USHORT_RANGE; ++i) { - if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7)))) - lut[i] = k++; - else - lut[i] = 0; - } - - return k - 1; // maximum value stored in lut[], -} // i.e. number of ones in bitmap minus 1 - -static unsigned short reverseLutFromBitmap( - const unsigned char bitmap[BITMAP_SIZE], unsigned short lut[USHORT_RANGE]) { - int k = 0; - - for (int i = 0; i < USHORT_RANGE; ++i) { - if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7)))) lut[k++] = i; - } - - int n = k - 1; - - while (k < USHORT_RANGE) lut[k++] = 0; - - return n; // maximum k where lut[k] is non-zero, -} // i.e. number of ones in bitmap minus 1 - -static void applyLut(const unsigned short lut[USHORT_RANGE], - unsigned short data[/*nData*/], int nData) { - for (int i = 0; i < nData; ++i) data[i] = lut[data[i]]; -} - -#ifdef __clang__ -#pragma clang diagnostic pop -#endif // __clang__ - -#ifdef _MSC_VER -#pragma warning(pop) -#endif - -static bool CompressPiz(unsigned char *outPtr, unsigned int *outSize, - const unsigned char *inPtr, size_t inSize, - const std::vector &channelInfo, - int data_width, int num_lines) { - std::vector bitmap(BITMAP_SIZE); - unsigned short minNonZero; - unsigned short maxNonZero; - -#if !MINIZ_LITTLE_ENDIAN - // @todo { PIZ compression on BigEndian architecture. } - assert(0); - return false; -#endif - - // Assume `inSize` is multiple of 2 or 4. - std::vector tmpBuffer(inSize / sizeof(unsigned short)); - - std::vector channelData(channelInfo.size()); - unsigned short *tmpBufferEnd = &tmpBuffer.at(0); - - for (size_t c = 0; c < channelData.size(); c++) { - PIZChannelData &cd = channelData[c]; - - cd.start = tmpBufferEnd; - cd.end = cd.start; - - cd.nx = data_width; - cd.ny = num_lines; - // cd.ys = c.channel().ySampling; - - size_t pixelSize = sizeof(int); // UINT and FLOAT - if (channelInfo[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - pixelSize = sizeof(short); - } - - cd.size = static_cast(pixelSize / sizeof(short)); - - tmpBufferEnd += cd.nx * cd.ny * cd.size; - } - - const unsigned char *ptr = inPtr; - for (int y = 0; y < num_lines; ++y) { - for (size_t i = 0; i < channelData.size(); ++i) { - PIZChannelData &cd = channelData[i]; - - // if (modp (y, cd.ys) != 0) - // continue; - - size_t n = static_cast(cd.nx * cd.size); - memcpy(cd.end, ptr, n * sizeof(unsigned short)); - ptr += n * sizeof(unsigned short); - cd.end += n; - } - } - - bitmapFromData(&tmpBuffer.at(0), static_cast(tmpBuffer.size()), - bitmap.data(), minNonZero, maxNonZero); - - std::vector lut(USHORT_RANGE); - unsigned short maxValue = forwardLutFromBitmap(bitmap.data(), lut.data()); - applyLut(lut.data(), &tmpBuffer.at(0), static_cast(tmpBuffer.size())); - - // - // Store range compression info in _outBuffer - // - - char *buf = reinterpret_cast(outPtr); - - memcpy(buf, &minNonZero, sizeof(unsigned short)); - buf += sizeof(unsigned short); - memcpy(buf, &maxNonZero, sizeof(unsigned short)); - buf += sizeof(unsigned short); - - if (minNonZero <= maxNonZero) { - memcpy(buf, reinterpret_cast(&bitmap[0] + minNonZero), - maxNonZero - minNonZero + 1); - buf += maxNonZero - minNonZero + 1; - } - - // - // Apply wavelet encoding - // - - for (size_t i = 0; i < channelData.size(); ++i) { - PIZChannelData &cd = channelData[i]; - - for (int j = 0; j < cd.size; ++j) { - wav2Encode(cd.start + j, cd.nx, cd.size, cd.ny, cd.nx * cd.size, - maxValue); - } - } - - // - // Apply Huffman encoding; append the result to _outBuffer - // - - // length header(4byte), then huff data. Initialize length header with zero, - // then later fill it by `length`. - char *lengthPtr = buf; - int zero = 0; - memcpy(buf, &zero, sizeof(int)); - buf += sizeof(int); - - int length = - hufCompress(&tmpBuffer.at(0), static_cast(tmpBuffer.size()), buf); - memcpy(lengthPtr, &length, sizeof(int)); - - (*outSize) = static_cast( - (reinterpret_cast(buf) - outPtr) + - static_cast(length)); - - // Use uncompressed data when compressed data is larger than uncompressed. - // (Issue 40) - if ((*outSize) >= inSize) { - (*outSize) = static_cast(inSize); - memcpy(outPtr, inPtr, inSize); - } - return true; -} - -static bool DecompressPiz(unsigned char *outPtr, const unsigned char *inPtr, - size_t tmpBufSize, size_t inLen, int num_channels, - const EXRChannelInfo *channels, int data_width, - int num_lines) { - if (inLen == tmpBufSize) { - // Data is not compressed(Issue 40). - memcpy(outPtr, inPtr, inLen); - return true; - } - - std::vector bitmap(BITMAP_SIZE); - unsigned short minNonZero; - unsigned short maxNonZero; - -#if !MINIZ_LITTLE_ENDIAN - // @todo { PIZ compression on BigEndian architecture. } - assert(0); - return false; -#endif - - memset(bitmap.data(), 0, BITMAP_SIZE); - - const unsigned char *ptr = inPtr; - // minNonZero = *(reinterpret_cast(ptr)); - tinyexr::cpy2(&minNonZero, reinterpret_cast(ptr)); - // maxNonZero = *(reinterpret_cast(ptr + 2)); - tinyexr::cpy2(&maxNonZero, reinterpret_cast(ptr + 2)); - ptr += 4; - - if (maxNonZero >= BITMAP_SIZE) { - return false; - } - - if (minNonZero <= maxNonZero) { - memcpy(reinterpret_cast(&bitmap[0] + minNonZero), ptr, - maxNonZero - minNonZero + 1); - ptr += maxNonZero - minNonZero + 1; - } - - std::vector lut(USHORT_RANGE); - memset(lut.data(), 0, sizeof(unsigned short) * USHORT_RANGE); - unsigned short maxValue = reverseLutFromBitmap(bitmap.data(), lut.data()); - - // - // Huffman decoding - // - - int length; - - // length = *(reinterpret_cast(ptr)); - tinyexr::cpy4(&length, reinterpret_cast(ptr)); - ptr += sizeof(int); - - if (size_t((ptr - inPtr) + length) > inLen) { - return false; - } - - std::vector tmpBuffer(tmpBufSize); - hufUncompress(reinterpret_cast(ptr), length, &tmpBuffer); - - // - // Wavelet decoding - // - - std::vector channelData(static_cast(num_channels)); - - unsigned short *tmpBufferEnd = &tmpBuffer.at(0); - - for (size_t i = 0; i < static_cast(num_channels); ++i) { - const EXRChannelInfo &chan = channels[i]; - - size_t pixelSize = sizeof(int); // UINT and FLOAT - if (chan.pixel_type == TINYEXR_PIXELTYPE_HALF) { - pixelSize = sizeof(short); - } - - channelData[i].start = tmpBufferEnd; - channelData[i].end = channelData[i].start; - channelData[i].nx = data_width; - channelData[i].ny = num_lines; - // channelData[i].ys = 1; - channelData[i].size = static_cast(pixelSize / sizeof(short)); - - tmpBufferEnd += channelData[i].nx * channelData[i].ny * channelData[i].size; - } - - for (size_t i = 0; i < channelData.size(); ++i) { - PIZChannelData &cd = channelData[i]; - - for (int j = 0; j < cd.size; ++j) { - wav2Decode(cd.start + j, cd.nx, cd.size, cd.ny, cd.nx * cd.size, - maxValue); - } - } - - // - // Expand the pixel data to their original range - // - - applyLut(lut.data(), &tmpBuffer.at(0), static_cast(tmpBufSize)); - - for (int y = 0; y < num_lines; y++) { - for (size_t i = 0; i < channelData.size(); ++i) { - PIZChannelData &cd = channelData[i]; - - // if (modp (y, cd.ys) != 0) - // continue; - - size_t n = static_cast(cd.nx * cd.size); - memcpy(outPtr, cd.end, static_cast(n * sizeof(unsigned short))); - outPtr += n * sizeof(unsigned short); - cd.end += n; - } - } - - return true; -} -#endif // TINYEXR_USE_PIZ - -#if TINYEXR_USE_ZFP -struct ZFPCompressionParam { - double rate; - int precision; - double tolerance; - int type; // TINYEXR_ZFP_COMPRESSIONTYPE_* - - ZFPCompressionParam() { - type = TINYEXR_ZFP_COMPRESSIONTYPE_RATE; - rate = 2.0; - precision = 0; - tolerance = 0.0f; - } -}; - -bool FindZFPCompressionParam(ZFPCompressionParam *param, - const EXRAttribute *attributes, - int num_attributes) { - bool foundType = false; - - for (int i = 0; i < num_attributes; i++) { - if ((strcmp(attributes[i].name, "zfpCompressionType") == 0) && - (attributes[i].size == 1)) { - param->type = static_cast(attributes[i].value[0]); - - foundType = true; - } - } - - if (!foundType) { - return false; - } - - if (param->type == TINYEXR_ZFP_COMPRESSIONTYPE_RATE) { - for (int i = 0; i < num_attributes; i++) { - if ((strcmp(attributes[i].name, "zfpCompressionRate") == 0) && - (attributes[i].size == 8)) { - param->rate = *(reinterpret_cast(attributes[i].value)); - return true; - } - } - } else if (param->type == TINYEXR_ZFP_COMPRESSIONTYPE_PRECISION) { - for (int i = 0; i < num_attributes; i++) { - if ((strcmp(attributes[i].name, "zfpCompressionPrecision") == 0) && - (attributes[i].size == 4)) { - param->rate = *(reinterpret_cast(attributes[i].value)); - return true; - } - } - } else if (param->type == TINYEXR_ZFP_COMPRESSIONTYPE_ACCURACY) { - for (int i = 0; i < num_attributes; i++) { - if ((strcmp(attributes[i].name, "zfpCompressionTolerance") == 0) && - (attributes[i].size == 8)) { - param->tolerance = *(reinterpret_cast(attributes[i].value)); - return true; - } - } - } else { - assert(0); - } - - return false; -} - -// Assume pixel format is FLOAT for all channels. -static bool DecompressZfp(float *dst, int dst_width, int dst_num_lines, - int num_channels, const unsigned char *src, - unsigned long src_size, - const ZFPCompressionParam ¶m) { - size_t uncompressed_size = dst_width * dst_num_lines * num_channels; - - if (uncompressed_size == src_size) { - // Data is not compressed(Issue 40). - memcpy(dst, src, src_size); - } - - zfp_stream *zfp = NULL; - zfp_field *field = NULL; - - assert((dst_width % 4) == 0); - assert((dst_num_lines % 4) == 0); - - if ((dst_width & 3U) || (dst_num_lines & 3U)) { - return false; - } - - field = - zfp_field_2d(reinterpret_cast(const_cast(src)), - zfp_type_float, dst_width, dst_num_lines * num_channels); - zfp = zfp_stream_open(NULL); - - if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_RATE) { - zfp_stream_set_rate(zfp, param.rate, zfp_type_float, /* dimention */ 2, - /* write random access */ 0); - } else if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_PRECISION) { - zfp_stream_set_precision(zfp, param.precision, zfp_type_float); - } else if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_ACCURACY) { - zfp_stream_set_accuracy(zfp, param.tolerance, zfp_type_float); - } else { - assert(0); - } - - size_t buf_size = zfp_stream_maximum_size(zfp, field); - std::vector buf(buf_size); - memcpy(&buf.at(0), src, src_size); - - bitstream *stream = stream_open(&buf.at(0), buf_size); - zfp_stream_set_bit_stream(zfp, stream); - zfp_stream_rewind(zfp); - - size_t image_size = dst_width * dst_num_lines; - - for (int c = 0; c < num_channels; c++) { - // decompress 4x4 pixel block. - for (int y = 0; y < dst_num_lines; y += 4) { - for (int x = 0; x < dst_width; x += 4) { - float fblock[16]; - zfp_decode_block_float_2(zfp, fblock); - for (int j = 0; j < 4; j++) { - for (int i = 0; i < 4; i++) { - dst[c * image_size + ((y + j) * dst_width + (x + i))] = - fblock[j * 4 + i]; - } - } - } - } - } - - zfp_field_free(field); - zfp_stream_close(zfp); - stream_close(stream); - - return true; -} - -// Assume pixel format is FLOAT for all channels. -bool CompressZfp(std::vector *outBuf, unsigned int *outSize, - const float *inPtr, int width, int num_lines, int num_channels, - const ZFPCompressionParam ¶m) { - zfp_stream *zfp = NULL; - zfp_field *field = NULL; - - assert((width % 4) == 0); - assert((num_lines % 4) == 0); - - if ((width & 3U) || (num_lines & 3U)) { - return false; - } - - // create input array. - field = zfp_field_2d(reinterpret_cast(const_cast(inPtr)), - zfp_type_float, width, num_lines * num_channels); - - zfp = zfp_stream_open(NULL); - - if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_RATE) { - zfp_stream_set_rate(zfp, param.rate, zfp_type_float, 2, 0); - } else if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_PRECISION) { - zfp_stream_set_precision(zfp, param.precision, zfp_type_float); - } else if (param.type == TINYEXR_ZFP_COMPRESSIONTYPE_ACCURACY) { - zfp_stream_set_accuracy(zfp, param.tolerance, zfp_type_float); - } else { - assert(0); - } - - size_t buf_size = zfp_stream_maximum_size(zfp, field); - - outBuf->resize(buf_size); - - bitstream *stream = stream_open(&outBuf->at(0), buf_size); - zfp_stream_set_bit_stream(zfp, stream); - zfp_field_free(field); - - size_t image_size = width * num_lines; - - for (int c = 0; c < num_channels; c++) { - // compress 4x4 pixel block. - for (int y = 0; y < num_lines; y += 4) { - for (int x = 0; x < width; x += 4) { - float fblock[16]; - for (int j = 0; j < 4; j++) { - for (int i = 0; i < 4; i++) { - fblock[j * 4 + i] = - inPtr[c * image_size + ((y + j) * width + (x + i))]; - } - } - zfp_encode_block_float_2(zfp, fblock); - } - } - } - - zfp_stream_flush(zfp); - (*outSize) = zfp_stream_compressed_size(zfp); - - zfp_stream_close(zfp); - - return true; -} - -#endif - -// -// ----------------------------------------------------------------- -// - -// TODO(syoyo): Refactor function arguments. -static bool DecodePixelData(/* out */ unsigned char **out_images, - const int *requested_pixel_types, - const unsigned char *data_ptr, size_t data_len, - int compression_type, int line_order, int width, - int height, int x_stride, int y, int line_no, - int num_lines, size_t pixel_data_size, - size_t num_attributes, - const EXRAttribute *attributes, size_t num_channels, - const EXRChannelInfo *channels, - const std::vector &channel_offset_list) { - if (compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { // PIZ -#if TINYEXR_USE_PIZ - if ((width == 0) || (num_lines == 0) || (pixel_data_size == 0)) { - // Invalid input #90 - return false; - } - - // Allocate original data size. - std::vector outBuf(static_cast( - static_cast(width * num_lines) * pixel_data_size)); - size_t tmpBufLen = outBuf.size(); - - bool ret = tinyexr::DecompressPiz( - reinterpret_cast(&outBuf.at(0)), data_ptr, tmpBufLen, - data_len, static_cast(num_channels), channels, width, num_lines); - - if (!ret) { - return false; - } - - // For PIZ_COMPRESSION: - // pixel sample data for channel 0 for scanline 0 - // pixel sample data for channel 1 for scanline 0 - // pixel sample data for channel ... for scanline 0 - // pixel sample data for channel n for scanline 0 - // pixel sample data for channel 0 for scanline 1 - // pixel sample data for channel 1 for scanline 1 - // pixel sample data for channel ... for scanline 1 - // pixel sample data for channel n for scanline 1 - // ... - for (size_t c = 0; c < static_cast(num_channels); c++) { - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned short *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - FP16 hf; - - // hf.u = line_ptr[u]; - // use `cpy` to avoid unaligned memory access when compiler's - // optimization is on. - tinyexr::cpy2(&(hf.u), line_ptr + u); - - tinyexr::swap2(reinterpret_cast(&hf.u)); - - if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - unsigned short *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += static_cast( - (height - 1 - (line_no + static_cast(v)))) * - static_cast(x_stride) + - u; - } - *image = hf.u; - } else { // HALF -> FLOAT - FP32 f32 = half_to_float(hf); - float *image = reinterpret_cast(out_images)[c]; - size_t offset = 0; - if (line_order == 0) { - offset = (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - offset = static_cast( - (height - 1 - (line_no + static_cast(v)))) * - static_cast(x_stride) + - u; - } - image += offset; - *image = f32.f; - } - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_UINT); - - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned int *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - unsigned int val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(&val); - - unsigned int *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += static_cast( - (height - 1 - (line_no + static_cast(v)))) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT); - for (size_t v = 0; v < static_cast(num_lines); v++) { - const float *line_ptr = reinterpret_cast(&outBuf.at( - v * pixel_data_size * static_cast(x_stride) + - channel_offset_list[c] * static_cast(x_stride))); - for (size_t u = 0; u < static_cast(width); u++) { - float val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - float *image = reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += static_cast( - (height - 1 - (line_no + static_cast(v)))) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else { - assert(0); - } - } -#else - assert(0 && "PIZ is enabled in this build"); - return false; -#endif - - } else if (compression_type == TINYEXR_COMPRESSIONTYPE_ZIPS || - compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) { - // Allocate original data size. - std::vector outBuf(static_cast(width) * - static_cast(num_lines) * - pixel_data_size); - - unsigned long dstLen = static_cast(outBuf.size()); - assert(dstLen > 0); - if (!tinyexr::DecompressZip( - reinterpret_cast(&outBuf.at(0)), &dstLen, data_ptr, - static_cast(data_len))) { - return false; - } - - // For ZIP_COMPRESSION: - // pixel sample data for channel 0 for scanline 0 - // pixel sample data for channel 1 for scanline 0 - // pixel sample data for channel ... for scanline 0 - // pixel sample data for channel n for scanline 0 - // pixel sample data for channel 0 for scanline 1 - // pixel sample data for channel 1 for scanline 1 - // pixel sample data for channel ... for scanline 1 - // pixel sample data for channel n for scanline 1 - // ... - for (size_t c = 0; c < static_cast(num_channels); c++) { - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned short *line_ptr = reinterpret_cast( - &outBuf.at(v * static_cast(pixel_data_size) * - static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - tinyexr::FP16 hf; - - // hf.u = line_ptr[u]; - tinyexr::cpy2(&(hf.u), line_ptr + u); - - tinyexr::swap2(reinterpret_cast(&hf.u)); - - if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - unsigned short *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = hf.u; - } else { // HALF -> FLOAT - tinyexr::FP32 f32 = half_to_float(hf); - float *image = reinterpret_cast(out_images)[c]; - size_t offset = 0; - if (line_order == 0) { - offset = (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - offset = (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - image += offset; - - *image = f32.f; - } - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_UINT); - - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned int *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - unsigned int val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(&val); - - unsigned int *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT); - for (size_t v = 0; v < static_cast(num_lines); v++) { - const float *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - float val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - float *image = reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else { - assert(0); - return false; - } - } - } else if (compression_type == TINYEXR_COMPRESSIONTYPE_RLE) { - // Allocate original data size. - std::vector outBuf(static_cast(width) * - static_cast(num_lines) * - pixel_data_size); - - unsigned long dstLen = static_cast(outBuf.size()); - if (dstLen == 0) { - return false; - } - - if (!tinyexr::DecompressRle(reinterpret_cast(&outBuf.at(0)), - dstLen, data_ptr, - static_cast(data_len))) { - return false; - } - - // For RLE_COMPRESSION: - // pixel sample data for channel 0 for scanline 0 - // pixel sample data for channel 1 for scanline 0 - // pixel sample data for channel ... for scanline 0 - // pixel sample data for channel n for scanline 0 - // pixel sample data for channel 0 for scanline 1 - // pixel sample data for channel 1 for scanline 1 - // pixel sample data for channel ... for scanline 1 - // pixel sample data for channel n for scanline 1 - // ... - for (size_t c = 0; c < static_cast(num_channels); c++) { - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned short *line_ptr = reinterpret_cast( - &outBuf.at(v * static_cast(pixel_data_size) * - static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - tinyexr::FP16 hf; - - // hf.u = line_ptr[u]; - tinyexr::cpy2(&(hf.u), line_ptr + u); - - tinyexr::swap2(reinterpret_cast(&hf.u)); - - if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - unsigned short *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = hf.u; - } else { // HALF -> FLOAT - tinyexr::FP32 f32 = half_to_float(hf); - float *image = reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = f32.f; - } - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_UINT); - - for (size_t v = 0; v < static_cast(num_lines); v++) { - const unsigned int *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - unsigned int val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(&val); - - unsigned int *image = - reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT); - for (size_t v = 0; v < static_cast(num_lines); v++) { - const float *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - float val; - // val = line_ptr[u]; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - float *image = reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else { - assert(0); - return false; - } - } - } else if (compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { -#if TINYEXR_USE_ZFP - tinyexr::ZFPCompressionParam zfp_compression_param; - if (!FindZFPCompressionParam(&zfp_compression_param, attributes, - num_attributes)) { - assert(0); - return false; - } - - // Allocate original data size. - std::vector outBuf(static_cast(width) * - static_cast(num_lines) * - pixel_data_size); - - unsigned long dstLen = outBuf.size(); - assert(dstLen > 0); - tinyexr::DecompressZfp(reinterpret_cast(&outBuf.at(0)), width, - num_lines, num_channels, data_ptr, - static_cast(data_len), - zfp_compression_param); - - // For ZFP_COMPRESSION: - // pixel sample data for channel 0 for scanline 0 - // pixel sample data for channel 1 for scanline 0 - // pixel sample data for channel ... for scanline 0 - // pixel sample data for channel n for scanline 0 - // pixel sample data for channel 0 for scanline 1 - // pixel sample data for channel 1 for scanline 1 - // pixel sample data for channel ... for scanline 1 - // pixel sample data for channel n for scanline 1 - // ... - for (size_t c = 0; c < static_cast(num_channels); c++) { - assert(channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT); - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - assert(requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT); - for (size_t v = 0; v < static_cast(num_lines); v++) { - const float *line_ptr = reinterpret_cast( - &outBuf.at(v * pixel_data_size * static_cast(width) + - channel_offset_list[c] * static_cast(width))); - for (size_t u = 0; u < static_cast(width); u++) { - float val; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - float *image = reinterpret_cast(out_images)[c]; - if (line_order == 0) { - image += (static_cast(line_no) + v) * - static_cast(x_stride) + - u; - } else { - image += (static_cast(height) - 1U - - (static_cast(line_no) + v)) * - static_cast(x_stride) + - u; - } - *image = val; - } - } - } else { - assert(0); - return false; - } - } -#else - (void)attributes; - (void)num_attributes; - (void)num_channels; - assert(0); - return false; -#endif - } else if (compression_type == TINYEXR_COMPRESSIONTYPE_NONE) { - for (size_t c = 0; c < num_channels; c++) { - for (size_t v = 0; v < static_cast(num_lines); v++) { - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - const unsigned short *line_ptr = - reinterpret_cast( - data_ptr + v * pixel_data_size * size_t(width) + - channel_offset_list[c] * static_cast(width)); - - if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - unsigned short *outLine = - reinterpret_cast(out_images[c]); - if (line_order == 0) { - outLine += (size_t(y) + v) * size_t(x_stride); - } else { - outLine += - (size_t(height) - 1 - (size_t(y) + v)) * size_t(x_stride); - } - - for (int u = 0; u < width; u++) { - tinyexr::FP16 hf; - - // hf.u = line_ptr[u]; - tinyexr::cpy2(&(hf.u), line_ptr + u); - - tinyexr::swap2(reinterpret_cast(&hf.u)); - - outLine[u] = hf.u; - } - } else if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT) { - float *outLine = reinterpret_cast(out_images[c]); - if (line_order == 0) { - outLine += (size_t(y) + v) * size_t(x_stride); - } else { - outLine += - (size_t(height) - 1 - (size_t(y) + v)) * size_t(x_stride); - } - - if (reinterpret_cast(line_ptr + width) > - (data_ptr + data_len)) { - // Insufficient data size - return false; - } - - for (int u = 0; u < width; u++) { - tinyexr::FP16 hf; - - // address may not be aliged. use byte-wise copy for safety.#76 - // hf.u = line_ptr[u]; - tinyexr::cpy2(&(hf.u), line_ptr + u); - - tinyexr::swap2(reinterpret_cast(&hf.u)); - - tinyexr::FP32 f32 = half_to_float(hf); - - outLine[u] = f32.f; - } - } else { - assert(0); - return false; - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - const float *line_ptr = reinterpret_cast( - data_ptr + v * pixel_data_size * size_t(width) + - channel_offset_list[c] * static_cast(width)); - - float *outLine = reinterpret_cast(out_images[c]); - if (line_order == 0) { - outLine += (size_t(y) + v) * size_t(x_stride); - } else { - outLine += - (size_t(height) - 1 - (size_t(y) + v)) * size_t(x_stride); - } - - if (reinterpret_cast(line_ptr + width) > - (data_ptr + data_len)) { - // Insufficient data size - return false; - } - - for (int u = 0; u < width; u++) { - float val; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - outLine[u] = val; - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - const unsigned int *line_ptr = reinterpret_cast( - data_ptr + v * pixel_data_size * size_t(width) + - channel_offset_list[c] * static_cast(width)); - - unsigned int *outLine = - reinterpret_cast(out_images[c]); - if (line_order == 0) { - outLine += (size_t(y) + v) * size_t(x_stride); - } else { - outLine += - (size_t(height) - 1 - (size_t(y) + v)) * size_t(x_stride); - } - - for (int u = 0; u < width; u++) { - if (reinterpret_cast(line_ptr + u) >= - (data_ptr + data_len)) { - // Corrupsed data? - return false; - } - - unsigned int val; - tinyexr::cpy4(&val, line_ptr + u); - - tinyexr::swap4(reinterpret_cast(&val)); - - outLine[u] = val; - } - } - } - } - } - - return true; -} - -static void DecodeTiledPixelData( - unsigned char **out_images, int *width, int *height, - const int *requested_pixel_types, const unsigned char *data_ptr, - size_t data_len, int compression_type, int line_order, int data_width, - int data_height, int tile_offset_x, int tile_offset_y, int tile_size_x, - int tile_size_y, size_t pixel_data_size, size_t num_attributes, - const EXRAttribute *attributes, size_t num_channels, - const EXRChannelInfo *channels, - const std::vector &channel_offset_list) { - assert(tile_offset_x * tile_size_x < data_width); - assert(tile_offset_y * tile_size_y < data_height); - - // Compute actual image size in a tile. - if ((tile_offset_x + 1) * tile_size_x >= data_width) { - (*width) = data_width - (tile_offset_x * tile_size_x); - } else { - (*width) = tile_size_x; - } - - if ((tile_offset_y + 1) * tile_size_y >= data_height) { - (*height) = data_height - (tile_offset_y * tile_size_y); - } else { - (*height) = tile_size_y; - } - - // Image size = tile size. - DecodePixelData(out_images, requested_pixel_types, data_ptr, data_len, - compression_type, line_order, (*width), tile_size_y, - /* stride */ tile_size_x, /* y */ 0, /* line_no */ 0, - (*height), pixel_data_size, num_attributes, attributes, - num_channels, channels, channel_offset_list); -} - -static bool ComputeChannelLayout(std::vector *channel_offset_list, - int *pixel_data_size, size_t *channel_offset, - int num_channels, - const EXRChannelInfo *channels) { - channel_offset_list->resize(static_cast(num_channels)); - - (*pixel_data_size) = 0; - (*channel_offset) = 0; - - for (size_t c = 0; c < static_cast(num_channels); c++) { - (*channel_offset_list)[c] = (*channel_offset); - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - (*pixel_data_size) += sizeof(unsigned short); - (*channel_offset) += sizeof(unsigned short); - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - (*pixel_data_size) += sizeof(float); - (*channel_offset) += sizeof(float); - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - (*pixel_data_size) += sizeof(unsigned int); - (*channel_offset) += sizeof(unsigned int); - } else { - // ??? - return false; - } - } - return true; -} - -static unsigned char **AllocateImage(int num_channels, - const EXRChannelInfo *channels, - const int *requested_pixel_types, - int data_width, int data_height) { - unsigned char **images = - reinterpret_cast(static_cast( - malloc(sizeof(float *) * static_cast(num_channels)))); - - for (size_t c = 0; c < static_cast(num_channels); c++) { - size_t data_len = - static_cast(data_width) * static_cast(data_height); - if (channels[c].pixel_type == TINYEXR_PIXELTYPE_HALF) { - // pixel_data_size += sizeof(unsigned short); - // channel_offset += sizeof(unsigned short); - // Alloc internal image for half type. - if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - images[c] = - reinterpret_cast(static_cast( - malloc(sizeof(unsigned short) * data_len))); - } else if (requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT) { - images[c] = reinterpret_cast( - static_cast(malloc(sizeof(float) * data_len))); - } else { - assert(0); - } - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_FLOAT) { - // pixel_data_size += sizeof(float); - // channel_offset += sizeof(float); - images[c] = reinterpret_cast( - static_cast(malloc(sizeof(float) * data_len))); - } else if (channels[c].pixel_type == TINYEXR_PIXELTYPE_UINT) { - // pixel_data_size += sizeof(unsigned int); - // channel_offset += sizeof(unsigned int); - images[c] = reinterpret_cast( - static_cast(malloc(sizeof(unsigned int) * data_len))); - } else { - assert(0); - } - } - - return images; -} - -static int ParseEXRHeader(HeaderInfo *info, bool *empty_header, - const EXRVersion *version, std::string *err, - const unsigned char *buf, size_t size) { - const char *marker = reinterpret_cast(&buf[0]); - - if (empty_header) { - (*empty_header) = false; - } - - if (version->multipart) { - if (size > 0 && marker[0] == '\0') { - // End of header list. - if (empty_header) { - (*empty_header) = true; - } - return TINYEXR_SUCCESS; - } - } - - // According to the spec, the header of every OpenEXR file must contain at - // least the following attributes: - // - // channels chlist - // compression compression - // dataWindow box2i - // displayWindow box2i - // lineOrder lineOrder - // pixelAspectRatio float - // screenWindowCenter v2f - // screenWindowWidth float - bool has_channels = false; - bool has_compression = false; - bool has_data_window = false; - bool has_display_window = false; - bool has_line_order = false; - bool has_pixel_aspect_ratio = false; - bool has_screen_window_center = false; - bool has_screen_window_width = false; - - info->data_window[0] = 0; - info->data_window[1] = 0; - info->data_window[2] = 0; - info->data_window[3] = 0; - info->line_order = 0; // @fixme - info->display_window[0] = 0; - info->display_window[1] = 0; - info->display_window[2] = 0; - info->display_window[3] = 0; - info->screen_window_center[0] = 0.0f; - info->screen_window_center[1] = 0.0f; - info->screen_window_width = -1.0f; - info->pixel_aspect_ratio = -1.0f; - - info->tile_size_x = -1; - info->tile_size_y = -1; - info->tile_level_mode = -1; - info->tile_rounding_mode = -1; - - info->attributes.clear(); - - // Read attributes - size_t orig_size = size; - for (size_t nattr = 0; nattr < TINYEXR_MAX_HEADER_ATTRIBUTES; nattr++) { - if (0 == size) { - if (err) { - (*err) += "Insufficient data size for attributes.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } else if (marker[0] == '\0') { - size--; - break; - } - - std::string attr_name; - std::string attr_type; - std::vector data; - size_t marker_size; - if (!tinyexr::ReadAttribute(&attr_name, &attr_type, &data, &marker_size, - marker, size)) { - if (err) { - (*err) += "Failed to read attribute.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - marker += marker_size; - size -= marker_size; - - if (version->tiled && attr_name.compare("tiles") == 0) { - unsigned int x_size, y_size; - unsigned char tile_mode; - assert(data.size() == 9); - memcpy(&x_size, &data.at(0), sizeof(int)); - memcpy(&y_size, &data.at(4), sizeof(int)); - tile_mode = data[8]; - tinyexr::swap4(&x_size); - tinyexr::swap4(&y_size); - - info->tile_size_x = static_cast(x_size); - info->tile_size_y = static_cast(y_size); - - // mode = levelMode + roundingMode * 16 - info->tile_level_mode = tile_mode & 0x3; - info->tile_rounding_mode = (tile_mode >> 4) & 0x1; - - } else if (attr_name.compare("compression") == 0) { - bool ok = false; - if (data[0] < TINYEXR_COMPRESSIONTYPE_PIZ) { - ok = true; - } - - if (data[0] == TINYEXR_COMPRESSIONTYPE_PIZ) { -#if TINYEXR_USE_PIZ - ok = true; -#else - if (err) { - (*err) = "PIZ compression is not supported."; - } - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; -#endif - } - - if (data[0] == TINYEXR_COMPRESSIONTYPE_ZFP) { -#if TINYEXR_USE_ZFP - ok = true; -#else - if (err) { - (*err) = "ZFP compression is not supported."; - } - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; -#endif - } - - if (!ok) { - if (err) { - (*err) = "Unknown compression type."; - } - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; - } - - info->compression_type = static_cast(data[0]); - has_compression = true; - - } else if (attr_name.compare("channels") == 0) { - // name: zero-terminated string, from 1 to 255 bytes long - // pixel type: int, possible values are: UINT = 0 HALF = 1 FLOAT = 2 - // pLinear: unsigned char, possible values are 0 and 1 - // reserved: three chars, should be zero - // xSampling: int - // ySampling: int - - if (!ReadChannelInfo(info->channels, data)) { - if (err) { - (*err) += "Failed to parse channel info.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - if (info->channels.size() < 1) { - if (err) { - (*err) += "# of channels is zero.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - has_channels = true; - - } else if (attr_name.compare("dataWindow") == 0) { - if (data.size() >= 16) { - memcpy(&info->data_window[0], &data.at(0), sizeof(int)); - memcpy(&info->data_window[1], &data.at(4), sizeof(int)); - memcpy(&info->data_window[2], &data.at(8), sizeof(int)); - memcpy(&info->data_window[3], &data.at(12), sizeof(int)); - tinyexr::swap4(reinterpret_cast(&info->data_window[0])); - tinyexr::swap4(reinterpret_cast(&info->data_window[1])); - tinyexr::swap4(reinterpret_cast(&info->data_window[2])); - tinyexr::swap4(reinterpret_cast(&info->data_window[3])); - has_data_window = true; - } - } else if (attr_name.compare("displayWindow") == 0) { - if (data.size() >= 16) { - memcpy(&info->display_window[0], &data.at(0), sizeof(int)); - memcpy(&info->display_window[1], &data.at(4), sizeof(int)); - memcpy(&info->display_window[2], &data.at(8), sizeof(int)); - memcpy(&info->display_window[3], &data.at(12), sizeof(int)); - tinyexr::swap4( - reinterpret_cast(&info->display_window[0])); - tinyexr::swap4( - reinterpret_cast(&info->display_window[1])); - tinyexr::swap4( - reinterpret_cast(&info->display_window[2])); - tinyexr::swap4( - reinterpret_cast(&info->display_window[3])); - - has_display_window = true; - } - } else if (attr_name.compare("lineOrder") == 0) { - if (data.size() >= 1) { - info->line_order = static_cast(data[0]); - has_line_order = true; - } - } else if (attr_name.compare("pixelAspectRatio") == 0) { - if (data.size() >= sizeof(float)) { - memcpy(&info->pixel_aspect_ratio, &data.at(0), sizeof(float)); - tinyexr::swap4( - reinterpret_cast(&info->pixel_aspect_ratio)); - has_pixel_aspect_ratio = true; - } - } else if (attr_name.compare("screenWindowCenter") == 0) { - if (data.size() >= 8) { - memcpy(&info->screen_window_center[0], &data.at(0), sizeof(float)); - memcpy(&info->screen_window_center[1], &data.at(4), sizeof(float)); - tinyexr::swap4( - reinterpret_cast(&info->screen_window_center[0])); - tinyexr::swap4( - reinterpret_cast(&info->screen_window_center[1])); - has_screen_window_center = true; - } - } else if (attr_name.compare("screenWindowWidth") == 0) { - if (data.size() >= sizeof(float)) { - memcpy(&info->screen_window_width, &data.at(0), sizeof(float)); - tinyexr::swap4( - reinterpret_cast(&info->screen_window_width)); - - has_screen_window_width = true; - } - } else if (attr_name.compare("chunkCount") == 0) { - if (data.size() >= sizeof(int)) { - memcpy(&info->chunk_count, &data.at(0), sizeof(int)); - tinyexr::swap4(reinterpret_cast(&info->chunk_count)); - } - } else { - // Custom attribute(up to TINYEXR_MAX_CUSTOM_ATTRIBUTES) - if (info->attributes.size() < TINYEXR_MAX_CUSTOM_ATTRIBUTES) { - EXRAttribute attrib; -#ifdef _MSC_VER - strncpy_s(attrib.name, attr_name.c_str(), 255); - strncpy_s(attrib.type, attr_type.c_str(), 255); -#else - strncpy(attrib.name, attr_name.c_str(), 255); - strncpy(attrib.type, attr_type.c_str(), 255); -#endif - attrib.name[255] = '\0'; - attrib.type[255] = '\0'; - attrib.size = static_cast(data.size()); - attrib.value = static_cast(malloc(data.size())); - memcpy(reinterpret_cast(attrib.value), &data.at(0), - data.size()); - info->attributes.push_back(attrib); - } - } - } - - // Check if required attributes exist - { - std::stringstream ss_err; - - if (!has_compression) { - ss_err << "\"compression\" attribute not found in the header." - << std::endl; - } - - if (!has_channels) { - ss_err << "\"channels\" attribute not found in the header." << std::endl; - } - - if (!has_line_order) { - ss_err << "\"lineOrder\" attribute not found in the header." << std::endl; - } - - if (!has_display_window) { - ss_err << "\"displayWindow\" attribute not found in the header." - << std::endl; - } - - if (!has_data_window) { - ss_err << "\"dataWindow\" attribute not found in the header or invalid." - << std::endl; - } - - if (!has_pixel_aspect_ratio) { - ss_err << "\"pixelAspectRatio\" attribute not found in the header." - << std::endl; - } - - if (!has_screen_window_width) { - ss_err << "\"screenWindowWidth\" attribute not found in the header." - << std::endl; - } - - if (!has_screen_window_center) { - ss_err << "\"screenWindowCenter\" attribute not found in the header." - << std::endl; - } - - if (!(ss_err.str().empty())) { - if (err) { - (*err) += ss_err.str(); - } - return TINYEXR_ERROR_INVALID_HEADER; - } - } - - info->header_len = static_cast(orig_size - size); - - return TINYEXR_SUCCESS; -} - -// C++ HeaderInfo to C EXRHeader conversion. -static void ConvertHeader(EXRHeader *exr_header, const HeaderInfo &info) { - exr_header->pixel_aspect_ratio = info.pixel_aspect_ratio; - exr_header->screen_window_center[0] = info.screen_window_center[0]; - exr_header->screen_window_center[1] = info.screen_window_center[1]; - exr_header->screen_window_width = info.screen_window_width; - exr_header->chunk_count = info.chunk_count; - exr_header->display_window[0] = info.display_window[0]; - exr_header->display_window[1] = info.display_window[1]; - exr_header->display_window[2] = info.display_window[2]; - exr_header->display_window[3] = info.display_window[3]; - exr_header->data_window[0] = info.data_window[0]; - exr_header->data_window[1] = info.data_window[1]; - exr_header->data_window[2] = info.data_window[2]; - exr_header->data_window[3] = info.data_window[3]; - exr_header->line_order = info.line_order; - exr_header->compression_type = info.compression_type; - - exr_header->tile_size_x = info.tile_size_x; - exr_header->tile_size_y = info.tile_size_y; - exr_header->tile_level_mode = info.tile_level_mode; - exr_header->tile_rounding_mode = info.tile_rounding_mode; - - exr_header->num_channels = static_cast(info.channels.size()); - - exr_header->channels = static_cast(malloc( - sizeof(EXRChannelInfo) * static_cast(exr_header->num_channels))); - for (size_t c = 0; c < static_cast(exr_header->num_channels); c++) { -#ifdef _MSC_VER - strncpy_s(exr_header->channels[c].name, info.channels[c].name.c_str(), 255); -#else - strncpy(exr_header->channels[c].name, info.channels[c].name.c_str(), 255); -#endif - // manually add '\0' for safety. - exr_header->channels[c].name[255] = '\0'; - - exr_header->channels[c].pixel_type = info.channels[c].pixel_type; - exr_header->channels[c].p_linear = info.channels[c].p_linear; - exr_header->channels[c].x_sampling = info.channels[c].x_sampling; - exr_header->channels[c].y_sampling = info.channels[c].y_sampling; - } - - exr_header->pixel_types = static_cast( - malloc(sizeof(int) * static_cast(exr_header->num_channels))); - for (size_t c = 0; c < static_cast(exr_header->num_channels); c++) { - exr_header->pixel_types[c] = info.channels[c].pixel_type; - } - - // Initially fill with values of `pixel_types` - exr_header->requested_pixel_types = static_cast( - malloc(sizeof(int) * static_cast(exr_header->num_channels))); - for (size_t c = 0; c < static_cast(exr_header->num_channels); c++) { - exr_header->requested_pixel_types[c] = info.channels[c].pixel_type; - } - - exr_header->num_custom_attributes = static_cast(info.attributes.size()); - - if (exr_header->num_custom_attributes > 0) { - // TODO(syoyo): Report warning when # of attributes exceeds - // `TINYEXR_MAX_CUSTOM_ATTRIBUTES` - if (exr_header->num_custom_attributes > TINYEXR_MAX_CUSTOM_ATTRIBUTES) { - exr_header->num_custom_attributes = TINYEXR_MAX_CUSTOM_ATTRIBUTES; - } - - exr_header->custom_attributes = static_cast(malloc( - sizeof(EXRAttribute) * size_t(exr_header->num_custom_attributes))); - - for (size_t i = 0; i < info.attributes.size(); i++) { - memcpy(exr_header->custom_attributes[i].name, info.attributes[i].name, - 256); - memcpy(exr_header->custom_attributes[i].type, info.attributes[i].type, - 256); - exr_header->custom_attributes[i].size = info.attributes[i].size; - // Just copy poiner - exr_header->custom_attributes[i].value = info.attributes[i].value; - } - - } else { - exr_header->custom_attributes = NULL; - } - - exr_header->header_len = info.header_len; -} - -static int DecodeChunk(EXRImage *exr_image, const EXRHeader *exr_header, - const std::vector &offsets, - const unsigned char *head, const size_t size, - std::string *err) { - int num_channels = exr_header->num_channels; - - int num_scanline_blocks = 1; - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) { - num_scanline_blocks = 16; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { - num_scanline_blocks = 32; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { - num_scanline_blocks = 16; - } - - int data_width = exr_header->data_window[2] - exr_header->data_window[0] + 1; - int data_height = exr_header->data_window[3] - exr_header->data_window[1] + 1; - - if ((data_width < 0) || (data_height < 0)) { - if (err) { - std::stringstream ss; - ss << "Invalid data width or data height: " << data_width << ", " - << data_height << std::endl; - (*err) += ss.str(); - } - return TINYEXR_ERROR_INVALID_DATA; - } - - // Do not allow too large data_width and data_height. header invalid? - { - const int threshold = 1024 * 8192; // heuristics - if ((data_width > threshold) || (data_height > threshold)) { - if (err) { - std::stringstream ss; - ss << "data_with or data_height too large. data_width: " << data_width - << ", " - << "data_height = " << data_height << std::endl; - (*err) += ss.str(); - } - return TINYEXR_ERROR_INVALID_DATA; - } - } - - size_t num_blocks = offsets.size(); - - std::vector channel_offset_list; - int pixel_data_size = 0; - size_t channel_offset = 0; - if (!tinyexr::ComputeChannelLayout(&channel_offset_list, &pixel_data_size, - &channel_offset, num_channels, - exr_header->channels)) { - if (err) { - (*err) += "Failed to compute channel layout.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - bool invalid_data = false; // TODO(LTE): Use atomic lock for MT safety. - - if (exr_header->tiled) { - // value check - if (exr_header->tile_size_x < 0) { - if (err) { - std::stringstream ss; - ss << "Invalid tile size x : " << exr_header->tile_size_x << "\n"; - (*err) += ss.str(); - } - return TINYEXR_ERROR_INVALID_HEADER; - } - - if (exr_header->tile_size_y < 0) { - if (err) { - std::stringstream ss; - ss << "Invalid tile size y : " << exr_header->tile_size_y << "\n"; - (*err) += ss.str(); - } - return TINYEXR_ERROR_INVALID_HEADER; - } - - size_t num_tiles = offsets.size(); // = # of blocks - - exr_image->tiles = static_cast( - calloc(sizeof(EXRTile), static_cast(num_tiles))); - - for (size_t tile_idx = 0; tile_idx < num_tiles; tile_idx++) { - // Allocate memory for each tile. - exr_image->tiles[tile_idx].images = tinyexr::AllocateImage( - num_channels, exr_header->channels, exr_header->requested_pixel_types, - exr_header->tile_size_x, exr_header->tile_size_y); - - // 16 byte: tile coordinates - // 4 byte : data size - // ~ : data(uncompressed or compressed) - if (offsets[tile_idx] + sizeof(int) * 5 > size) { - if (err) { - (*err) += "Insufficient data size.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - size_t data_size = size_t(size - (offsets[tile_idx] + sizeof(int) * 5)); - const unsigned char *data_ptr = - reinterpret_cast(head + offsets[tile_idx]); - - int tile_coordinates[4]; - memcpy(tile_coordinates, data_ptr, sizeof(int) * 4); - tinyexr::swap4(reinterpret_cast(&tile_coordinates[0])); - tinyexr::swap4(reinterpret_cast(&tile_coordinates[1])); - tinyexr::swap4(reinterpret_cast(&tile_coordinates[2])); - tinyexr::swap4(reinterpret_cast(&tile_coordinates[3])); - - // @todo{ LoD } - if (tile_coordinates[2] != 0) { - return TINYEXR_ERROR_UNSUPPORTED_FEATURE; - } - if (tile_coordinates[3] != 0) { - return TINYEXR_ERROR_UNSUPPORTED_FEATURE; - } - - int data_len; - memcpy(&data_len, data_ptr + 16, - sizeof(int)); // 16 = sizeof(tile_coordinates) - tinyexr::swap4(reinterpret_cast(&data_len)); - - if (data_len < 4 || size_t(data_len) > data_size) { - if (err) { - (*err) += "Insufficient data length.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - // Move to data addr: 20 = 16 + 4; - data_ptr += 20; - - tinyexr::DecodeTiledPixelData( - exr_image->tiles[tile_idx].images, - &(exr_image->tiles[tile_idx].width), - &(exr_image->tiles[tile_idx].height), - exr_header->requested_pixel_types, data_ptr, - static_cast(data_len), exr_header->compression_type, - exr_header->line_order, data_width, data_height, tile_coordinates[0], - tile_coordinates[1], exr_header->tile_size_x, exr_header->tile_size_y, - static_cast(pixel_data_size), - static_cast(exr_header->num_custom_attributes), - exr_header->custom_attributes, - static_cast(exr_header->num_channels), exr_header->channels, - channel_offset_list); - - exr_image->tiles[tile_idx].offset_x = tile_coordinates[0]; - exr_image->tiles[tile_idx].offset_y = tile_coordinates[1]; - exr_image->tiles[tile_idx].level_x = tile_coordinates[2]; - exr_image->tiles[tile_idx].level_y = tile_coordinates[3]; - - exr_image->num_tiles = static_cast(num_tiles); - } - } else { // scanline format - - // Don't allow too large image(256GB * pixel_data_size or more). Workaround - // for #104. - size_t total_data_len = - size_t(data_width) * size_t(data_height) * size_t(num_channels); - const bool total_data_len_overflown = sizeof(void*) == 8 ? (total_data_len >= 0x4000000000) : false; - if ((total_data_len == 0) || total_data_len_overflown ) { - if (err) { - std::stringstream ss; - ss << "Image data size is zero or too large: width = " << data_width - << ", height = " << data_height << ", channels = " << num_channels - << std::endl; - (*err) += ss.str(); - } - return TINYEXR_ERROR_INVALID_DATA; - } - - exr_image->images = tinyexr::AllocateImage( - num_channels, exr_header->channels, exr_header->requested_pixel_types, - data_width, data_height); - -#ifdef _OPENMP -#pragma omp parallel for -#endif - for (int y = 0; y < static_cast(num_blocks); y++) { - size_t y_idx = static_cast(y); - - if (offsets[y_idx] + sizeof(int) * 2 > size) { - invalid_data = true; - } else { - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(uncompressed or compressed) - size_t data_size = size_t(size - (offsets[y_idx] + sizeof(int) * 2)); - const unsigned char *data_ptr = - reinterpret_cast(head + offsets[y_idx]); - - int line_no; - memcpy(&line_no, data_ptr, sizeof(int)); - int data_len; - memcpy(&data_len, data_ptr + 4, sizeof(int)); - tinyexr::swap4(reinterpret_cast(&line_no)); - tinyexr::swap4(reinterpret_cast(&data_len)); - - if (size_t(data_len) > data_size) { - invalid_data = true; - - } else if ((line_no > (2 << 20)) || (line_no < -(2 << 20))) { - // Too large value. Assume this is invalid - // 2**20 = 1048576 = heuristic value. - invalid_data = true; - } else if (data_len == 0) { - // TODO(syoyo): May be ok to raise the threshold for example `data_len - // < 4` - invalid_data = true; - } else { - // line_no may be negative. - int end_line_no = (std::min)(line_no + num_scanline_blocks, - (exr_header->data_window[3] + 1)); - - int num_lines = end_line_no - line_no; - - if (num_lines <= 0) { - invalid_data = true; - } else { - // Move to data addr: 8 = 4 + 4; - data_ptr += 8; - - // Adjust line_no with data_window.bmin.y - - // overflow check - tinyexr_int64 lno = static_cast(line_no) - static_cast(exr_header->data_window[1]); - if (lno > std::numeric_limits::max()) { - line_no = -1; // invalid - } else if (lno < -std::numeric_limits::max()) { - line_no = -1; // invalid - } else { - line_no -= exr_header->data_window[1]; - } - - if (line_no < 0) { - invalid_data = true; - } else { - if (!tinyexr::DecodePixelData( - exr_image->images, exr_header->requested_pixel_types, - data_ptr, static_cast(data_len), - exr_header->compression_type, exr_header->line_order, - data_width, data_height, data_width, y, line_no, - num_lines, static_cast(pixel_data_size), - static_cast(exr_header->num_custom_attributes), - exr_header->custom_attributes, - static_cast(exr_header->num_channels), - exr_header->channels, channel_offset_list)) { - invalid_data = true; - } - } - } - } - } - } // omp parallel - } - - if (invalid_data) { - if (err) { - std::stringstream ss; - (*err) += "Invalid data found when decoding pixels.\n"; - } - return TINYEXR_ERROR_INVALID_DATA; - } - - // Overwrite `pixel_type` with `requested_pixel_type`. - { - for (int c = 0; c < exr_header->num_channels; c++) { - exr_header->pixel_types[c] = exr_header->requested_pixel_types[c]; - } - } - - { - exr_image->num_channels = num_channels; - - exr_image->width = data_width; - exr_image->height = data_height; - } - - return TINYEXR_SUCCESS; -} - -static bool ReconstructLineOffsets( - std::vector *offsets, size_t n, - const unsigned char *head, const unsigned char *marker, const size_t size) { - assert(head < marker); - assert(offsets->size() == n); - - for (size_t i = 0; i < n; i++) { - size_t offset = static_cast(marker - head); - // Offset should not exceed whole EXR file/data size. - if ((offset + sizeof(tinyexr::tinyexr_uint64)) >= size) { - return false; - } - - int y; - unsigned int data_len; - - memcpy(&y, marker, sizeof(int)); - memcpy(&data_len, marker + 4, sizeof(unsigned int)); - - if (data_len >= size) { - return false; - } - - tinyexr::swap4(reinterpret_cast(&y)); - tinyexr::swap4(reinterpret_cast(&data_len)); - - (*offsets)[i] = offset; - - marker += data_len + 8; // 8 = 4 bytes(y) + 4 bytes(data_len) - } - - return true; -} - -static int DecodeEXRImage(EXRImage *exr_image, const EXRHeader *exr_header, - const unsigned char *head, - const unsigned char *marker, const size_t size, - const char **err) { - if (exr_image == NULL || exr_header == NULL || head == NULL || - marker == NULL || (size <= tinyexr::kEXRVersionSize)) { - tinyexr::SetErrorMessage("Invalid argument for DecodeEXRImage().", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - int num_scanline_blocks = 1; - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) { - num_scanline_blocks = 16; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { - num_scanline_blocks = 32; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { - num_scanline_blocks = 16; - } - - int data_width = exr_header->data_window[2] - exr_header->data_window[0]; - if (data_width >= std::numeric_limits::max()) { - // Issue 63 - tinyexr::SetErrorMessage("Invalid data width value", err); - return TINYEXR_ERROR_INVALID_DATA; - } - data_width++; - - int data_height = exr_header->data_window[3] - exr_header->data_window[1]; - if (data_height >= std::numeric_limits::max()) { - tinyexr::SetErrorMessage("Invalid data height value", err); - return TINYEXR_ERROR_INVALID_DATA; - } - data_height++; - - if ((data_width < 0) || (data_height < 0)) { - tinyexr::SetErrorMessage("data width or data height is negative.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - // Do not allow too large data_width and data_height. header invalid? - { - const int threshold = 1024 * 8192; // heuristics - if (data_width > threshold) { - tinyexr::SetErrorMessage("data width too large.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - if (data_height > threshold) { - tinyexr::SetErrorMessage("data height too large.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - } - - // Read offset tables. - size_t num_blocks = 0; - - if (exr_header->chunk_count > 0) { - // Use `chunkCount` attribute. - num_blocks = static_cast(exr_header->chunk_count); - } else if (exr_header->tiled) { - // @todo { LoD } - size_t num_x_tiles = static_cast(data_width) / - static_cast(exr_header->tile_size_x); - if (num_x_tiles * static_cast(exr_header->tile_size_x) < - static_cast(data_width)) { - num_x_tiles++; - } - size_t num_y_tiles = static_cast(data_height) / - static_cast(exr_header->tile_size_y); - if (num_y_tiles * static_cast(exr_header->tile_size_y) < - static_cast(data_height)) { - num_y_tiles++; - } - - num_blocks = num_x_tiles * num_y_tiles; - } else { - num_blocks = static_cast(data_height) / - static_cast(num_scanline_blocks); - if (num_blocks * static_cast(num_scanline_blocks) < - static_cast(data_height)) { - num_blocks++; - } - } - - std::vector offsets(num_blocks); - - for (size_t y = 0; y < num_blocks; y++) { - tinyexr::tinyexr_uint64 offset; - // Issue #81 - if ((marker + sizeof(tinyexr_uint64)) >= (head + size)) { - tinyexr::SetErrorMessage("Insufficient data size in offset table.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - memcpy(&offset, marker, sizeof(tinyexr::tinyexr_uint64)); - tinyexr::swap8(&offset); - if (offset >= size) { - tinyexr::SetErrorMessage("Invalid offset value in DecodeEXRImage.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - marker += sizeof(tinyexr::tinyexr_uint64); // = 8 - offsets[y] = offset; - } - - // If line offsets are invalid, we try to reconstruct it. - // See OpenEXR/IlmImf/ImfScanLineInputFile.cpp::readLineOffsets() for details. - for (size_t y = 0; y < num_blocks; y++) { - if (offsets[y] <= 0) { - // TODO(syoyo) Report as warning? - // if (err) { - // stringstream ss; - // ss << "Incomplete lineOffsets." << std::endl; - // (*err) += ss.str(); - //} - bool ret = - ReconstructLineOffsets(&offsets, num_blocks, head, marker, size); - if (ret) { - // OK - break; - } else { - tinyexr::SetErrorMessage( - "Cannot reconstruct lineOffset table in DecodeEXRImage.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - } - } - - { - std::string e; - int ret = DecodeChunk(exr_image, exr_header, offsets, head, size, &e); - - if (ret != TINYEXR_SUCCESS) { - if (!e.empty()) { - tinyexr::SetErrorMessage(e, err); - } - - // release memory(if exists) - if ((exr_header->num_channels > 0) && exr_image && exr_image->images) { - for (size_t c = 0; c < size_t(exr_header->num_channels); c++) { - if (exr_image->images[c]) { - free(exr_image->images[c]); - exr_image->images[c] = NULL; - } - } - free(exr_image->images); - exr_image->images = NULL; - } - } - - return ret; - } -} - -} // namespace tinyexr - -int LoadEXR(float **out_rgba, int *width, int *height, const char *filename, - const char **err) { - if (out_rgba == NULL) { - tinyexr::SetErrorMessage("Invalid argument for LoadEXR()", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - EXRVersion exr_version; - EXRImage exr_image; - EXRHeader exr_header; - InitEXRHeader(&exr_header); - InitEXRImage(&exr_image); - - { - int ret = ParseEXRVersionFromFile(&exr_version, filename); - if (ret != TINYEXR_SUCCESS) { - tinyexr::SetErrorMessage("Invalid EXR header.", err); - return ret; - } - - if (exr_version.multipart || exr_version.non_image) { - tinyexr::SetErrorMessage( - "Loading multipart or DeepImage is not supported in LoadEXR() API", - err); - return TINYEXR_ERROR_INVALID_DATA; // @fixme. - } - } - - { - int ret = ParseEXRHeaderFromFile(&exr_header, &exr_version, filename, err); - if (ret != TINYEXR_SUCCESS) { - FreeEXRHeader(&exr_header); - return ret; - } - } - - // Read HALF channel as FLOAT. - for (int i = 0; i < exr_header.num_channels; i++) { - if (exr_header.pixel_types[i] == TINYEXR_PIXELTYPE_HALF) { - exr_header.requested_pixel_types[i] = TINYEXR_PIXELTYPE_FLOAT; - } - } - - { - int ret = LoadEXRImageFromFile(&exr_image, &exr_header, filename, err); - if (ret != TINYEXR_SUCCESS) { - FreeEXRHeader(&exr_header); - return ret; - } - } - - // RGBA - int idxR = -1; - int idxG = -1; - int idxB = -1; - int idxA = -1; - for (int c = 0; c < exr_header.num_channels; c++) { - if (strcmp(exr_header.channels[c].name, "R") == 0) { - idxR = c; - } else if (strcmp(exr_header.channels[c].name, "G") == 0) { - idxG = c; - } else if (strcmp(exr_header.channels[c].name, "B") == 0) { - idxB = c; - } else if (strcmp(exr_header.channels[c].name, "A") == 0) { - idxA = c; - } - } - - if (exr_header.num_channels == 1) { - // Grayscale channel only. - - (*out_rgba) = reinterpret_cast( - malloc(4 * sizeof(float) * static_cast(exr_image.width) * - static_cast(exr_image.height))); - - if (exr_header.tiled) { - for (int it = 0; it < exr_image.num_tiles; it++) { - for (int j = 0; j < exr_header.tile_size_y; j++) { - for (int i = 0; i < exr_header.tile_size_x; i++) { - const int ii = - exr_image.tiles[it].offset_x * exr_header.tile_size_x + i; - const int jj = - exr_image.tiles[it].offset_y * exr_header.tile_size_y + j; - const int idx = ii + jj * exr_image.width; - - // out of region check. - if (ii >= exr_image.width) { - continue; - } - if (jj >= exr_image.height) { - continue; - } - const int srcIdx = i + j * exr_header.tile_size_x; - unsigned char **src = exr_image.tiles[it].images; - (*out_rgba)[4 * idx + 0] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 1] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 2] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 3] = - reinterpret_cast(src)[0][srcIdx]; - } - } - } - } else { - for (int i = 0; i < exr_image.width * exr_image.height; i++) { - const float val = reinterpret_cast(exr_image.images)[0][i]; - (*out_rgba)[4 * i + 0] = val; - (*out_rgba)[4 * i + 1] = val; - (*out_rgba)[4 * i + 2] = val; - (*out_rgba)[4 * i + 3] = val; - } - } - } else { - // Assume RGB(A) - - if (idxR == -1) { - tinyexr::SetErrorMessage("R channel not found", err); - - // @todo { free exr_image } - FreeEXRHeader(&exr_header); - return TINYEXR_ERROR_INVALID_DATA; - } - - if (idxG == -1) { - tinyexr::SetErrorMessage("G channel not found", err); - // @todo { free exr_image } - FreeEXRHeader(&exr_header); - return TINYEXR_ERROR_INVALID_DATA; - } - - if (idxB == -1) { - tinyexr::SetErrorMessage("B channel not found", err); - // @todo { free exr_image } - FreeEXRHeader(&exr_header); - return TINYEXR_ERROR_INVALID_DATA; - } - - (*out_rgba) = reinterpret_cast( - malloc(4 * sizeof(float) * static_cast(exr_image.width) * - static_cast(exr_image.height))); - if (exr_header.tiled) { - for (int it = 0; it < exr_image.num_tiles; it++) { - for (int j = 0; j < exr_header.tile_size_y; j++) { - for (int i = 0; i < exr_header.tile_size_x; i++) { - const int ii = - exr_image.tiles[it].offset_x * exr_header.tile_size_x + i; - const int jj = - exr_image.tiles[it].offset_y * exr_header.tile_size_y + j; - const int idx = ii + jj * exr_image.width; - - // out of region check. - if (ii >= exr_image.width) { - continue; - } - if (jj >= exr_image.height) { - continue; - } - const int srcIdx = i + j * exr_header.tile_size_x; - unsigned char **src = exr_image.tiles[it].images; - (*out_rgba)[4 * idx + 0] = - reinterpret_cast(src)[idxR][srcIdx]; - (*out_rgba)[4 * idx + 1] = - reinterpret_cast(src)[idxG][srcIdx]; - (*out_rgba)[4 * idx + 2] = - reinterpret_cast(src)[idxB][srcIdx]; - if (idxA != -1) { - (*out_rgba)[4 * idx + 3] = - reinterpret_cast(src)[idxA][srcIdx]; - } else { - (*out_rgba)[4 * idx + 3] = 1.0; - } - } - } - } - } else { - for (int i = 0; i < exr_image.width * exr_image.height; i++) { - (*out_rgba)[4 * i + 0] = - reinterpret_cast(exr_image.images)[idxR][i]; - (*out_rgba)[4 * i + 1] = - reinterpret_cast(exr_image.images)[idxG][i]; - (*out_rgba)[4 * i + 2] = - reinterpret_cast(exr_image.images)[idxB][i]; - if (idxA != -1) { - (*out_rgba)[4 * i + 3] = - reinterpret_cast(exr_image.images)[idxA][i]; - } else { - (*out_rgba)[4 * i + 3] = 1.0; - } - } - } - } - - (*width) = exr_image.width; - (*height) = exr_image.height; - - FreeEXRHeader(&exr_header); - FreeEXRImage(&exr_image); - - return TINYEXR_SUCCESS; -} - -int IsEXR(const char *filename) { - EXRVersion exr_version; - - int ret = ParseEXRVersionFromFile(&exr_version, filename); - if (ret != TINYEXR_SUCCESS) { - return TINYEXR_ERROR_INVALID_HEADER; - } - - return TINYEXR_SUCCESS; -} - -int ParseEXRHeaderFromMemory(EXRHeader *exr_header, const EXRVersion *version, - const unsigned char *memory, size_t size, - const char **err) { - if (memory == NULL || exr_header == NULL) { - tinyexr::SetErrorMessage( - "Invalid argument. `memory` or `exr_header` argument is null in " - "ParseEXRHeaderFromMemory()", - err); - - // Invalid argument - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - if (size < tinyexr::kEXRVersionSize) { - tinyexr::SetErrorMessage("Insufficient header/data size.\n", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - const unsigned char *marker = memory + tinyexr::kEXRVersionSize; - size_t marker_size = size - tinyexr::kEXRVersionSize; - - tinyexr::HeaderInfo info; - info.clear(); - - std::string err_str; - int ret = ParseEXRHeader(&info, NULL, version, &err_str, marker, marker_size); - - if (ret != TINYEXR_SUCCESS) { - if (err && !err_str.empty()) { - tinyexr::SetErrorMessage(err_str, err); - } - } - - ConvertHeader(exr_header, info); - - // transfoer `tiled` from version. - exr_header->tiled = version->tiled; - - return ret; -} - -int LoadEXRFromMemory(float **out_rgba, int *width, int *height, - const unsigned char *memory, size_t size, - const char **err) { - if (out_rgba == NULL || memory == NULL) { - tinyexr::SetErrorMessage("Invalid argument for LoadEXRFromMemory", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - EXRVersion exr_version; - EXRImage exr_image; - EXRHeader exr_header; - - InitEXRHeader(&exr_header); - - int ret = ParseEXRVersionFromMemory(&exr_version, memory, size); - if (ret != TINYEXR_SUCCESS) { - tinyexr::SetErrorMessage("Failed to parse EXR version", err); - return ret; - } - - ret = ParseEXRHeaderFromMemory(&exr_header, &exr_version, memory, size, err); - if (ret != TINYEXR_SUCCESS) { - return ret; - } - - // Read HALF channel as FLOAT. - for (int i = 0; i < exr_header.num_channels; i++) { - if (exr_header.pixel_types[i] == TINYEXR_PIXELTYPE_HALF) { - exr_header.requested_pixel_types[i] = TINYEXR_PIXELTYPE_FLOAT; - } - } - - InitEXRImage(&exr_image); - ret = LoadEXRImageFromMemory(&exr_image, &exr_header, memory, size, err); - if (ret != TINYEXR_SUCCESS) { - return ret; - } - - // RGBA - int idxR = -1; - int idxG = -1; - int idxB = -1; - int idxA = -1; - for (int c = 0; c < exr_header.num_channels; c++) { - if (strcmp(exr_header.channels[c].name, "R") == 0) { - idxR = c; - } else if (strcmp(exr_header.channels[c].name, "G") == 0) { - idxG = c; - } else if (strcmp(exr_header.channels[c].name, "B") == 0) { - idxB = c; - } else if (strcmp(exr_header.channels[c].name, "A") == 0) { - idxA = c; - } - } - - // TODO(syoyo): Refactor removing same code as used in LoadEXR(). - if (exr_header.num_channels == 1) { - // Grayscale channel only. - - (*out_rgba) = reinterpret_cast( - malloc(4 * sizeof(float) * static_cast(exr_image.width) * - static_cast(exr_image.height))); - - if (exr_header.tiled) { - for (int it = 0; it < exr_image.num_tiles; it++) { - for (int j = 0; j < exr_header.tile_size_y; j++) { - for (int i = 0; i < exr_header.tile_size_x; i++) { - const int ii = - exr_image.tiles[it].offset_x * exr_header.tile_size_x + i; - const int jj = - exr_image.tiles[it].offset_y * exr_header.tile_size_y + j; - const int idx = ii + jj * exr_image.width; - - // out of region check. - if (ii >= exr_image.width) { - continue; - } - if (jj >= exr_image.height) { - continue; - } - const int srcIdx = i + j * exr_header.tile_size_x; - unsigned char **src = exr_image.tiles[it].images; - (*out_rgba)[4 * idx + 0] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 1] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 2] = - reinterpret_cast(src)[0][srcIdx]; - (*out_rgba)[4 * idx + 3] = - reinterpret_cast(src)[0][srcIdx]; - } - } - } - } else { - for (int i = 0; i < exr_image.width * exr_image.height; i++) { - const float val = reinterpret_cast(exr_image.images)[0][i]; - (*out_rgba)[4 * i + 0] = val; - (*out_rgba)[4 * i + 1] = val; - (*out_rgba)[4 * i + 2] = val; - (*out_rgba)[4 * i + 3] = val; - } - } - - } else { - // TODO(syoyo): Support non RGBA image. - - if (idxR == -1) { - tinyexr::SetErrorMessage("R channel not found", err); - - // @todo { free exr_image } - return TINYEXR_ERROR_INVALID_DATA; - } - - if (idxG == -1) { - tinyexr::SetErrorMessage("G channel not found", err); - // @todo { free exr_image } - return TINYEXR_ERROR_INVALID_DATA; - } - - if (idxB == -1) { - tinyexr::SetErrorMessage("B channel not found", err); - // @todo { free exr_image } - return TINYEXR_ERROR_INVALID_DATA; - } - - (*out_rgba) = reinterpret_cast( - malloc(4 * sizeof(float) * static_cast(exr_image.width) * - static_cast(exr_image.height))); - - if (exr_header.tiled) { - for (int it = 0; it < exr_image.num_tiles; it++) { - for (int j = 0; j < exr_header.tile_size_y; j++) - for (int i = 0; i < exr_header.tile_size_x; i++) { - const int ii = - exr_image.tiles[it].offset_x * exr_header.tile_size_x + i; - const int jj = - exr_image.tiles[it].offset_y * exr_header.tile_size_y + j; - const int idx = ii + jj * exr_image.width; - - // out of region check. - if (ii >= exr_image.width) { - continue; - } - if (jj >= exr_image.height) { - continue; - } - const int srcIdx = i + j * exr_header.tile_size_x; - unsigned char **src = exr_image.tiles[it].images; - (*out_rgba)[4 * idx + 0] = - reinterpret_cast(src)[idxR][srcIdx]; - (*out_rgba)[4 * idx + 1] = - reinterpret_cast(src)[idxG][srcIdx]; - (*out_rgba)[4 * idx + 2] = - reinterpret_cast(src)[idxB][srcIdx]; - if (idxA != -1) { - (*out_rgba)[4 * idx + 3] = - reinterpret_cast(src)[idxA][srcIdx]; - } else { - (*out_rgba)[4 * idx + 3] = 1.0; - } - } - } - } else { - for (int i = 0; i < exr_image.width * exr_image.height; i++) { - (*out_rgba)[4 * i + 0] = - reinterpret_cast(exr_image.images)[idxR][i]; - (*out_rgba)[4 * i + 1] = - reinterpret_cast(exr_image.images)[idxG][i]; - (*out_rgba)[4 * i + 2] = - reinterpret_cast(exr_image.images)[idxB][i]; - if (idxA != -1) { - (*out_rgba)[4 * i + 3] = - reinterpret_cast(exr_image.images)[idxA][i]; - } else { - (*out_rgba)[4 * i + 3] = 1.0; - } - } - } - } - - (*width) = exr_image.width; - (*height) = exr_image.height; - - FreeEXRHeader(&exr_header); - FreeEXRImage(&exr_image); - - return TINYEXR_SUCCESS; -} - -int LoadEXRImageFromFile(EXRImage *exr_image, const EXRHeader *exr_header, - const char *filename, const char **err) { - if (exr_image == NULL) { - tinyexr::SetErrorMessage("Invalid argument for LoadEXRImageFromFile", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "rb"); -#else - FILE *fp = fopen(filename, "rb"); -#endif - if (!fp) { - tinyexr::SetErrorMessage("Cannot read file " + std::string(filename), err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } - - size_t filesize; - // Compute size - fseek(fp, 0, SEEK_END); - filesize = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - if (filesize < 16) { - tinyexr::SetErrorMessage("File size too short " + std::string(filename), - err); - return TINYEXR_ERROR_INVALID_FILE; - } - - std::vector buf(filesize); // @todo { use mmap } - { - size_t ret; - ret = fread(&buf[0], 1, filesize, fp); - assert(ret == filesize); - fclose(fp); - (void)ret; - } - - return LoadEXRImageFromMemory(exr_image, exr_header, &buf.at(0), filesize, - err); -} - -int LoadEXRImageFromMemory(EXRImage *exr_image, const EXRHeader *exr_header, - const unsigned char *memory, const size_t size, - const char **err) { - if (exr_image == NULL || memory == NULL || - (size < tinyexr::kEXRVersionSize)) { - tinyexr::SetErrorMessage("Invalid argument for LoadEXRImageFromMemory", - err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - if (exr_header->header_len == 0) { - tinyexr::SetErrorMessage("EXRHeader variable is not initialized.", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - const unsigned char *head = memory; - const unsigned char *marker = reinterpret_cast( - memory + exr_header->header_len + - 8); // +8 for magic number + version header. - return tinyexr::DecodeEXRImage(exr_image, exr_header, head, marker, size, - err); -} - -size_t SaveEXRImageToMemory(const EXRImage *exr_image, - const EXRHeader *exr_header, - unsigned char **memory_out, const char **err) { - if (exr_image == NULL || memory_out == NULL || - exr_header->compression_type < 0) { - tinyexr::SetErrorMessage("Invalid argument for SaveEXRImageToMemory", err); - return 0; - } - -#if !TINYEXR_USE_PIZ - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { - tinyexr::SetErrorMessage("PIZ compression is not supported in this build", - err); - return 0; - } -#endif - -#if !TINYEXR_USE_ZFP - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { - tinyexr::SetErrorMessage("ZFP compression is not supported in this build", - err); - return 0; - } -#endif - -#if TINYEXR_USE_ZFP - for (size_t i = 0; i < static_cast(exr_header->num_channels); i++) { - if (exr_header->requested_pixel_types[i] != TINYEXR_PIXELTYPE_FLOAT) { - tinyexr::SetErrorMessage("Pixel type must be FLOAT for ZFP compression", - err); - return 0; - } - } -#endif - - std::vector memory; - - // Header - { - const char header[] = {0x76, 0x2f, 0x31, 0x01}; - memory.insert(memory.end(), header, header + 4); - } - - // Version, scanline. - { - char marker[] = {2, 0, 0, 0}; - /* @todo - if (exr_header->tiled) { - marker[1] |= 0x2; - } - if (exr_header->long_name) { - marker[1] |= 0x4; - } - if (exr_header->non_image) { - marker[1] |= 0x8; - } - if (exr_header->multipart) { - marker[1] |= 0x10; - } - */ - memory.insert(memory.end(), marker, marker + 4); - } - - int num_scanlines = 1; - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) { - num_scanlines = 16; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { - num_scanlines = 32; - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { - num_scanlines = 16; - } - - // Write attributes. - std::vector channels; - { - std::vector data; - - for (int c = 0; c < exr_header->num_channels; c++) { - tinyexr::ChannelInfo info; - info.p_linear = 0; - info.pixel_type = exr_header->requested_pixel_types[c]; - info.x_sampling = 1; - info.y_sampling = 1; - info.name = std::string(exr_header->channels[c].name); - channels.push_back(info); - } - - tinyexr::WriteChannelInfo(data, channels); - - tinyexr::WriteAttributeToMemory(&memory, "channels", "chlist", &data.at(0), - static_cast(data.size())); - } - - { - int comp = exr_header->compression_type; - tinyexr::swap4(reinterpret_cast(&comp)); - tinyexr::WriteAttributeToMemory( - &memory, "compression", "compression", - reinterpret_cast(&comp), 1); - } - - { - int data[4] = {0, 0, exr_image->width - 1, exr_image->height - 1}; - tinyexr::swap4(reinterpret_cast(&data[0])); - tinyexr::swap4(reinterpret_cast(&data[1])); - tinyexr::swap4(reinterpret_cast(&data[2])); - tinyexr::swap4(reinterpret_cast(&data[3])); - tinyexr::WriteAttributeToMemory( - &memory, "dataWindow", "box2i", - reinterpret_cast(data), sizeof(int) * 4); - tinyexr::WriteAttributeToMemory( - &memory, "displayWindow", "box2i", - reinterpret_cast(data), sizeof(int) * 4); - } - - { - unsigned char line_order = 0; // @fixme { read line_order from EXRHeader } - tinyexr::WriteAttributeToMemory(&memory, "lineOrder", "lineOrder", - &line_order, 1); - } - - { - float aspectRatio = 1.0f; - tinyexr::swap4(reinterpret_cast(&aspectRatio)); - tinyexr::WriteAttributeToMemory( - &memory, "pixelAspectRatio", "float", - reinterpret_cast(&aspectRatio), sizeof(float)); - } - - { - float center[2] = {0.0f, 0.0f}; - tinyexr::swap4(reinterpret_cast(¢er[0])); - tinyexr::swap4(reinterpret_cast(¢er[1])); - tinyexr::WriteAttributeToMemory( - &memory, "screenWindowCenter", "v2f", - reinterpret_cast(center), 2 * sizeof(float)); - } - - { - float w = static_cast(exr_image->width); - tinyexr::swap4(reinterpret_cast(&w)); - tinyexr::WriteAttributeToMemory(&memory, "screenWindowWidth", "float", - reinterpret_cast(&w), - sizeof(float)); - } - - // Custom attributes - if (exr_header->num_custom_attributes > 0) { - for (int i = 0; i < exr_header->num_custom_attributes; i++) { - tinyexr::WriteAttributeToMemory( - &memory, exr_header->custom_attributes[i].name, - exr_header->custom_attributes[i].type, - reinterpret_cast( - exr_header->custom_attributes[i].value), - exr_header->custom_attributes[i].size); - } - } - - { // end of header - unsigned char e = 0; - memory.push_back(e); - } - - int num_blocks = exr_image->height / num_scanlines; - if (num_blocks * num_scanlines < exr_image->height) { - num_blocks++; - } - - std::vector offsets(static_cast(num_blocks)); - - size_t headerSize = memory.size(); - tinyexr::tinyexr_uint64 offset = - headerSize + - static_cast(num_blocks) * - sizeof( - tinyexr::tinyexr_int64); // sizeof(header) + sizeof(offsetTable) - - std::vector > data_list( - static_cast(num_blocks)); - std::vector channel_offset_list( - static_cast(exr_header->num_channels)); - - int pixel_data_size = 0; - size_t channel_offset = 0; - for (size_t c = 0; c < static_cast(exr_header->num_channels); c++) { - channel_offset_list[c] = channel_offset; - if (exr_header->requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - pixel_data_size += sizeof(unsigned short); - channel_offset += sizeof(unsigned short); - } else if (exr_header->requested_pixel_types[c] == - TINYEXR_PIXELTYPE_FLOAT) { - pixel_data_size += sizeof(float); - channel_offset += sizeof(float); - } else if (exr_header->requested_pixel_types[c] == TINYEXR_PIXELTYPE_UINT) { - pixel_data_size += sizeof(unsigned int); - channel_offset += sizeof(unsigned int); - } else { - assert(0); - } - } - -#if TINYEXR_USE_ZFP - tinyexr::ZFPCompressionParam zfp_compression_param; - - // Use ZFP compression parameter from custom attributes(if such a parameter - // exists) - { - bool ret = tinyexr::FindZFPCompressionParam( - &zfp_compression_param, exr_header->custom_attributes, - exr_header->num_custom_attributes); - - if (!ret) { - // Use predefined compression parameter. - zfp_compression_param.type = 0; - zfp_compression_param.rate = 2; - } - } -#endif - -// Use signed int since some OpenMP compiler doesn't allow unsigned type for -// `parallel for` -#ifdef _OPENMP -#pragma omp parallel for -#endif - for (int i = 0; i < num_blocks; i++) { - size_t ii = static_cast(i); - int start_y = num_scanlines * i; - int endY = (std::min)(num_scanlines * (i + 1), exr_image->height); - int h = endY - start_y; - - std::vector buf( - static_cast(exr_image->width * h * pixel_data_size)); - - for (size_t c = 0; c < static_cast(exr_header->num_channels); c++) { - if (exr_header->pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - if (exr_header->requested_pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT) { - for (int y = 0; y < h; y++) { - // Assume increasing Y - float *line_ptr = reinterpret_cast(&buf.at( - static_cast(pixel_data_size * y * exr_image->width) + - channel_offset_list[c] * - static_cast(exr_image->width))); - for (int x = 0; x < exr_image->width; x++) { - tinyexr::FP16 h16; - h16.u = reinterpret_cast( - exr_image->images)[c][(y + start_y) * exr_image->width + x]; - - tinyexr::FP32 f32 = half_to_float(h16); - - tinyexr::swap4(reinterpret_cast(&f32.f)); - - // line_ptr[x] = f32.f; - tinyexr::cpy4(line_ptr + x, &(f32.f)); - } - } - } else if (exr_header->requested_pixel_types[c] == - TINYEXR_PIXELTYPE_HALF) { - for (int y = 0; y < h; y++) { - // Assume increasing Y - unsigned short *line_ptr = reinterpret_cast( - &buf.at(static_cast(pixel_data_size * y * - exr_image->width) + - channel_offset_list[c] * - static_cast(exr_image->width))); - for (int x = 0; x < exr_image->width; x++) { - unsigned short val = reinterpret_cast( - exr_image->images)[c][(y + start_y) * exr_image->width + x]; - - tinyexr::swap2(&val); - - // line_ptr[x] = val; - tinyexr::cpy2(line_ptr + x, &val); - } - } - } else { - assert(0); - } - - } else if (exr_header->pixel_types[c] == TINYEXR_PIXELTYPE_FLOAT) { - if (exr_header->requested_pixel_types[c] == TINYEXR_PIXELTYPE_HALF) { - for (int y = 0; y < h; y++) { - // Assume increasing Y - unsigned short *line_ptr = reinterpret_cast( - &buf.at(static_cast(pixel_data_size * y * - exr_image->width) + - channel_offset_list[c] * - static_cast(exr_image->width))); - for (int x = 0; x < exr_image->width; x++) { - tinyexr::FP32 f32; - f32.f = reinterpret_cast( - exr_image->images)[c][(y + start_y) * exr_image->width + x]; - - tinyexr::FP16 h16; - h16 = float_to_half_full(f32); - - tinyexr::swap2(reinterpret_cast(&h16.u)); - - // line_ptr[x] = h16.u; - tinyexr::cpy2(line_ptr + x, &(h16.u)); - } - } - } else if (exr_header->requested_pixel_types[c] == - TINYEXR_PIXELTYPE_FLOAT) { - for (int y = 0; y < h; y++) { - // Assume increasing Y - float *line_ptr = reinterpret_cast(&buf.at( - static_cast(pixel_data_size * y * exr_image->width) + - channel_offset_list[c] * - static_cast(exr_image->width))); - for (int x = 0; x < exr_image->width; x++) { - float val = reinterpret_cast( - exr_image->images)[c][(y + start_y) * exr_image->width + x]; - - tinyexr::swap4(reinterpret_cast(&val)); - - // line_ptr[x] = val; - tinyexr::cpy4(line_ptr + x, &val); - } - } - } else { - assert(0); - } - } else if (exr_header->pixel_types[c] == TINYEXR_PIXELTYPE_UINT) { - for (int y = 0; y < h; y++) { - // Assume increasing Y - unsigned int *line_ptr = reinterpret_cast(&buf.at( - static_cast(pixel_data_size * y * exr_image->width) + - channel_offset_list[c] * static_cast(exr_image->width))); - for (int x = 0; x < exr_image->width; x++) { - unsigned int val = reinterpret_cast( - exr_image->images)[c][(y + start_y) * exr_image->width + x]; - - tinyexr::swap4(&val); - - // line_ptr[x] = val; - tinyexr::cpy4(line_ptr + x, &val); - } - } - } - } - - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_NONE) { - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(uncompressed) - std::vector header(8); - unsigned int data_len = static_cast(buf.size()); - memcpy(&header.at(0), &start_y, sizeof(int)); - memcpy(&header.at(4), &data_len, sizeof(unsigned int)); - - tinyexr::swap4(reinterpret_cast(&header.at(0))); - tinyexr::swap4(reinterpret_cast(&header.at(4))); - - data_list[ii].insert(data_list[ii].end(), header.begin(), header.end()); - data_list[ii].insert(data_list[ii].end(), buf.begin(), - buf.begin() + data_len); - - } else if ((exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZIPS) || - (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZIP)) { -#if TINYEXR_USE_MINIZ - std::vector block(tinyexr::miniz::mz_compressBound( - static_cast(buf.size()))); -#else - std::vector block( - compressBound(static_cast(buf.size()))); -#endif - tinyexr::tinyexr_uint64 outSize = block.size(); - - tinyexr::CompressZip(&block.at(0), outSize, - reinterpret_cast(&buf.at(0)), - static_cast(buf.size())); - - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(compressed) - std::vector header(8); - unsigned int data_len = static_cast(outSize); // truncate - memcpy(&header.at(0), &start_y, sizeof(int)); - memcpy(&header.at(4), &data_len, sizeof(unsigned int)); - - tinyexr::swap4(reinterpret_cast(&header.at(0))); - tinyexr::swap4(reinterpret_cast(&header.at(4))); - - data_list[ii].insert(data_list[ii].end(), header.begin(), header.end()); - data_list[ii].insert(data_list[ii].end(), block.begin(), - block.begin() + data_len); - - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_RLE) { - // (buf.size() * 3) / 2 would be enough. - std::vector block((buf.size() * 3) / 2); - - tinyexr::tinyexr_uint64 outSize = block.size(); - - tinyexr::CompressRle(&block.at(0), outSize, - reinterpret_cast(&buf.at(0)), - static_cast(buf.size())); - - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(compressed) - std::vector header(8); - unsigned int data_len = static_cast(outSize); // truncate - memcpy(&header.at(0), &start_y, sizeof(int)); - memcpy(&header.at(4), &data_len, sizeof(unsigned int)); - - tinyexr::swap4(reinterpret_cast(&header.at(0))); - tinyexr::swap4(reinterpret_cast(&header.at(4))); - - data_list[ii].insert(data_list[ii].end(), header.begin(), header.end()); - data_list[ii].insert(data_list[ii].end(), block.begin(), - block.begin() + data_len); - - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { -#if TINYEXR_USE_PIZ - unsigned int bufLen = - 8192 + static_cast( - 2 * static_cast( - buf.size())); // @fixme { compute good bound. } - std::vector block(bufLen); - unsigned int outSize = static_cast(block.size()); - - CompressPiz(&block.at(0), &outSize, - reinterpret_cast(&buf.at(0)), - buf.size(), channels, exr_image->width, h); - - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(compressed) - std::vector header(8); - unsigned int data_len = outSize; - memcpy(&header.at(0), &start_y, sizeof(int)); - memcpy(&header.at(4), &data_len, sizeof(unsigned int)); - - tinyexr::swap4(reinterpret_cast(&header.at(0))); - tinyexr::swap4(reinterpret_cast(&header.at(4))); - - data_list[ii].insert(data_list[ii].end(), header.begin(), header.end()); - data_list[ii].insert(data_list[ii].end(), block.begin(), - block.begin() + data_len); - -#else - assert(0); -#endif - } else if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { -#if TINYEXR_USE_ZFP - std::vector block; - unsigned int outSize; - - tinyexr::CompressZfp( - &block, &outSize, reinterpret_cast(&buf.at(0)), - exr_image->width, h, exr_header->num_channels, zfp_compression_param); - - // 4 byte: scan line - // 4 byte: data size - // ~ : pixel data(compressed) - std::vector header(8); - unsigned int data_len = outSize; - memcpy(&header.at(0), &start_y, sizeof(int)); - memcpy(&header.at(4), &data_len, sizeof(unsigned int)); - - tinyexr::swap4(reinterpret_cast(&header.at(0))); - tinyexr::swap4(reinterpret_cast(&header.at(4))); - - data_list[ii].insert(data_list[ii].end(), header.begin(), header.end()); - data_list[ii].insert(data_list[ii].end(), block.begin(), - block.begin() + data_len); - -#else - assert(0); -#endif - } else { - assert(0); - } - } // omp parallel - - for (size_t i = 0; i < static_cast(num_blocks); i++) { - offsets[i] = offset; - tinyexr::swap8(reinterpret_cast(&offsets[i])); - offset += data_list[i].size(); - } - - size_t totalSize = static_cast(offset); - { - memory.insert( - memory.end(), reinterpret_cast(&offsets.at(0)), - reinterpret_cast(&offsets.at(0)) + - sizeof(tinyexr::tinyexr_uint64) * static_cast(num_blocks)); - } - - if (memory.size() == 0) { - tinyexr::SetErrorMessage("Output memory size is zero", err); - return 0; - } - - (*memory_out) = static_cast(malloc(totalSize)); - memcpy((*memory_out), &memory.at(0), memory.size()); - unsigned char *memory_ptr = *memory_out + memory.size(); - - for (size_t i = 0; i < static_cast(num_blocks); i++) { - memcpy(memory_ptr, &data_list[i].at(0), data_list[i].size()); - memory_ptr += data_list[i].size(); - } - - return totalSize; // OK -} - -int SaveEXRImageToFile(const EXRImage *exr_image, const EXRHeader *exr_header, - const char *filename, const char **err) { - if (exr_image == NULL || filename == NULL || - exr_header->compression_type < 0) { - tinyexr::SetErrorMessage("Invalid argument for SaveEXRImageToFile", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#if !TINYEXR_USE_PIZ - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_PIZ) { - tinyexr::SetErrorMessage("PIZ compression is not supported in this build", - err); - return TINYEXR_ERROR_UNSUPPORTED_FEATURE; - } -#endif - -#if !TINYEXR_USE_ZFP - if (exr_header->compression_type == TINYEXR_COMPRESSIONTYPE_ZFP) { - tinyexr::SetErrorMessage("ZFP compression is not supported in this build", - err); - return TINYEXR_ERROR_UNSUPPORTED_FEATURE; - } -#endif - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "wb"); -#else - FILE *fp = fopen(filename, "wb"); -#endif - if (!fp) { - tinyexr::SetErrorMessage("Cannot write a file", err); - return TINYEXR_ERROR_CANT_WRITE_FILE; - } - - unsigned char *mem = NULL; - size_t mem_size = SaveEXRImageToMemory(exr_image, exr_header, &mem, err); - if (mem_size == 0) { - return TINYEXR_ERROR_SERIALZATION_FAILED; - } - - size_t written_size = 0; - if ((mem_size > 0) && mem) { - written_size = fwrite(mem, 1, mem_size, fp); - } - free(mem); - - fclose(fp); - - if (written_size != mem_size) { - tinyexr::SetErrorMessage("Cannot write a file", err); - return TINYEXR_ERROR_CANT_WRITE_FILE; - } - - return TINYEXR_SUCCESS; -} - -int LoadDeepEXR(DeepImage *deep_image, const char *filename, const char **err) { - if (deep_image == NULL) { - tinyexr::SetErrorMessage("Invalid argument for LoadDeepEXR", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _MSC_VER - FILE *fp = NULL; - errno_t errcode = fopen_s(&fp, filename, "rb"); - if ((0 != errcode) || (!fp)) { - tinyexr::SetErrorMessage("Cannot read a file " + std::string(filename), - err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } -#else - FILE *fp = fopen(filename, "rb"); - if (!fp) { - tinyexr::SetErrorMessage("Cannot read a file " + std::string(filename), - err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } -#endif - - size_t filesize; - // Compute size - fseek(fp, 0, SEEK_END); - filesize = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - if (filesize == 0) { - fclose(fp); - tinyexr::SetErrorMessage("File size is zero : " + std::string(filename), - err); - return TINYEXR_ERROR_INVALID_FILE; - } - - std::vector buf(filesize); // @todo { use mmap } - { - size_t ret; - ret = fread(&buf[0], 1, filesize, fp); - assert(ret == filesize); - (void)ret; - } - fclose(fp); - - const char *head = &buf[0]; - const char *marker = &buf[0]; - - // Header check. - { - const char header[] = {0x76, 0x2f, 0x31, 0x01}; - - if (memcmp(marker, header, 4) != 0) { - tinyexr::SetErrorMessage("Invalid magic number", err); - return TINYEXR_ERROR_INVALID_MAGIC_NUMBER; - } - marker += 4; - } - - // Version, scanline. - { - // ver 2.0, scanline, deep bit on(0x800) - // must be [2, 0, 0, 0] - if (marker[0] != 2 || marker[1] != 8 || marker[2] != 0 || marker[3] != 0) { - tinyexr::SetErrorMessage("Unsupported version or scanline", err); - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; - } - - marker += 4; - } - - int dx = -1; - int dy = -1; - int dw = -1; - int dh = -1; - int num_scanline_blocks = 1; // 16 for ZIP compression. - int compression_type = -1; - int num_channels = -1; - std::vector channels; - - // Read attributes - size_t size = filesize - tinyexr::kEXRVersionSize; - for (;;) { - if (0 == size) { - return TINYEXR_ERROR_INVALID_DATA; - } else if (marker[0] == '\0') { - marker++; - size--; - break; - } - - std::string attr_name; - std::string attr_type; - std::vector data; - size_t marker_size; - if (!tinyexr::ReadAttribute(&attr_name, &attr_type, &data, &marker_size, - marker, size)) { - std::stringstream ss; - ss << "Failed to parse attribute\n"; - tinyexr::SetErrorMessage(ss.str(), err); - return TINYEXR_ERROR_INVALID_DATA; - } - marker += marker_size; - size -= marker_size; - - if (attr_name.compare("compression") == 0) { - compression_type = data[0]; - if (compression_type > TINYEXR_COMPRESSIONTYPE_PIZ) { - std::stringstream ss; - ss << "Unsupported compression type : " << compression_type; - tinyexr::SetErrorMessage(ss.str(), err); - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; - } - - if (compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) { - num_scanline_blocks = 16; - } - - } else if (attr_name.compare("channels") == 0) { - // name: zero-terminated string, from 1 to 255 bytes long - // pixel type: int, possible values are: UINT = 0 HALF = 1 FLOAT = 2 - // pLinear: unsigned char, possible values are 0 and 1 - // reserved: three chars, should be zero - // xSampling: int - // ySampling: int - - if (!tinyexr::ReadChannelInfo(channels, data)) { - tinyexr::SetErrorMessage("Failed to parse channel info", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - num_channels = static_cast(channels.size()); - - if (num_channels < 1) { - tinyexr::SetErrorMessage("Invalid channels format", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - } else if (attr_name.compare("dataWindow") == 0) { - memcpy(&dx, &data.at(0), sizeof(int)); - memcpy(&dy, &data.at(4), sizeof(int)); - memcpy(&dw, &data.at(8), sizeof(int)); - memcpy(&dh, &data.at(12), sizeof(int)); - tinyexr::swap4(reinterpret_cast(&dx)); - tinyexr::swap4(reinterpret_cast(&dy)); - tinyexr::swap4(reinterpret_cast(&dw)); - tinyexr::swap4(reinterpret_cast(&dh)); - - } else if (attr_name.compare("displayWindow") == 0) { - int x; - int y; - int w; - int h; - memcpy(&x, &data.at(0), sizeof(int)); - memcpy(&y, &data.at(4), sizeof(int)); - memcpy(&w, &data.at(8), sizeof(int)); - memcpy(&h, &data.at(12), sizeof(int)); - tinyexr::swap4(reinterpret_cast(&x)); - tinyexr::swap4(reinterpret_cast(&y)); - tinyexr::swap4(reinterpret_cast(&w)); - tinyexr::swap4(reinterpret_cast(&h)); - } - } - - assert(dx >= 0); - assert(dy >= 0); - assert(dw >= 0); - assert(dh >= 0); - assert(num_channels >= 1); - - int data_width = dw - dx + 1; - int data_height = dh - dy + 1; - - std::vector image( - static_cast(data_width * data_height * 4)); // 4 = RGBA - - // Read offset tables. - int num_blocks = data_height / num_scanline_blocks; - if (num_blocks * num_scanline_blocks < data_height) { - num_blocks++; - } - - std::vector offsets(static_cast(num_blocks)); - - for (size_t y = 0; y < static_cast(num_blocks); y++) { - tinyexr::tinyexr_int64 offset; - memcpy(&offset, marker, sizeof(tinyexr::tinyexr_int64)); - tinyexr::swap8(reinterpret_cast(&offset)); - marker += sizeof(tinyexr::tinyexr_int64); // = 8 - offsets[y] = offset; - } - -#if TINYEXR_USE_PIZ - if ((compression_type == TINYEXR_COMPRESSIONTYPE_NONE) || - (compression_type == TINYEXR_COMPRESSIONTYPE_RLE) || - (compression_type == TINYEXR_COMPRESSIONTYPE_ZIPS) || - (compression_type == TINYEXR_COMPRESSIONTYPE_ZIP) || - (compression_type == TINYEXR_COMPRESSIONTYPE_PIZ)) { -#else - if ((compression_type == TINYEXR_COMPRESSIONTYPE_NONE) || - (compression_type == TINYEXR_COMPRESSIONTYPE_RLE) || - (compression_type == TINYEXR_COMPRESSIONTYPE_ZIPS) || - (compression_type == TINYEXR_COMPRESSIONTYPE_ZIP)) { -#endif - // OK - } else { - tinyexr::SetErrorMessage("Unsupported compression format", err); - return TINYEXR_ERROR_UNSUPPORTED_FORMAT; - } - - deep_image->image = static_cast( - malloc(sizeof(float **) * static_cast(num_channels))); - for (int c = 0; c < num_channels; c++) { - deep_image->image[c] = static_cast( - malloc(sizeof(float *) * static_cast(data_height))); - for (int y = 0; y < data_height; y++) { - } - } - - deep_image->offset_table = static_cast( - malloc(sizeof(int *) * static_cast(data_height))); - for (int y = 0; y < data_height; y++) { - deep_image->offset_table[y] = static_cast( - malloc(sizeof(int) * static_cast(data_width))); - } - - for (size_t y = 0; y < static_cast(num_blocks); y++) { - const unsigned char *data_ptr = - reinterpret_cast(head + offsets[y]); - - // int: y coordinate - // int64: packed size of pixel offset table - // int64: packed size of sample data - // int64: unpacked size of sample data - // compressed pixel offset table - // compressed sample data - int line_no; - tinyexr::tinyexr_int64 packedOffsetTableSize; - tinyexr::tinyexr_int64 packedSampleDataSize; - tinyexr::tinyexr_int64 unpackedSampleDataSize; - memcpy(&line_no, data_ptr, sizeof(int)); - memcpy(&packedOffsetTableSize, data_ptr + 4, - sizeof(tinyexr::tinyexr_int64)); - memcpy(&packedSampleDataSize, data_ptr + 12, - sizeof(tinyexr::tinyexr_int64)); - memcpy(&unpackedSampleDataSize, data_ptr + 20, - sizeof(tinyexr::tinyexr_int64)); - - tinyexr::swap4(reinterpret_cast(&line_no)); - tinyexr::swap8( - reinterpret_cast(&packedOffsetTableSize)); - tinyexr::swap8( - reinterpret_cast(&packedSampleDataSize)); - tinyexr::swap8( - reinterpret_cast(&unpackedSampleDataSize)); - - std::vector pixelOffsetTable(static_cast(data_width)); - - // decode pixel offset table. - { - unsigned long dstLen = - static_cast(pixelOffsetTable.size() * sizeof(int)); - if (!tinyexr::DecompressZip( - reinterpret_cast(&pixelOffsetTable.at(0)), - &dstLen, data_ptr + 28, - static_cast(packedOffsetTableSize))) { - return false; - } - - assert(dstLen == pixelOffsetTable.size() * sizeof(int)); - for (size_t i = 0; i < static_cast(data_width); i++) { - deep_image->offset_table[y][i] = pixelOffsetTable[i]; - } - } - - std::vector sample_data( - static_cast(unpackedSampleDataSize)); - - // decode sample data. - { - unsigned long dstLen = static_cast(unpackedSampleDataSize); - if (dstLen) { - if (!tinyexr::DecompressZip( - reinterpret_cast(&sample_data.at(0)), &dstLen, - data_ptr + 28 + packedOffsetTableSize, - static_cast(packedSampleDataSize))) { - return false; - } - assert(dstLen == static_cast(unpackedSampleDataSize)); - } - } - - // decode sample - int sampleSize = -1; - std::vector channel_offset_list(static_cast(num_channels)); - { - int channel_offset = 0; - for (size_t i = 0; i < static_cast(num_channels); i++) { - channel_offset_list[i] = channel_offset; - if (channels[i].pixel_type == TINYEXR_PIXELTYPE_UINT) { // UINT - channel_offset += 4; - } else if (channels[i].pixel_type == TINYEXR_PIXELTYPE_HALF) { // half - channel_offset += 2; - } else if (channels[i].pixel_type == - TINYEXR_PIXELTYPE_FLOAT) { // float - channel_offset += 4; - } else { - assert(0); - } - } - sampleSize = channel_offset; - } - assert(sampleSize >= 2); - - assert(static_cast( - pixelOffsetTable[static_cast(data_width - 1)] * - sampleSize) == sample_data.size()); - int samples_per_line = static_cast(sample_data.size()) / sampleSize; - - // - // Alloc memory - // - - // - // pixel data is stored as image[channels][pixel_samples] - // - { - tinyexr::tinyexr_uint64 data_offset = 0; - for (size_t c = 0; c < static_cast(num_channels); c++) { - deep_image->image[c][y] = static_cast( - malloc(sizeof(float) * static_cast(samples_per_line))); - - if (channels[c].pixel_type == 0) { // UINT - for (size_t x = 0; x < static_cast(samples_per_line); x++) { - unsigned int ui; - unsigned int *src_ptr = reinterpret_cast( - &sample_data.at(size_t(data_offset) + x * sizeof(int))); - tinyexr::cpy4(&ui, src_ptr); - deep_image->image[c][y][x] = static_cast(ui); // @fixme - } - data_offset += - sizeof(unsigned int) * static_cast(samples_per_line); - } else if (channels[c].pixel_type == 1) { // half - for (size_t x = 0; x < static_cast(samples_per_line); x++) { - tinyexr::FP16 f16; - const unsigned short *src_ptr = reinterpret_cast( - &sample_data.at(size_t(data_offset) + x * sizeof(short))); - tinyexr::cpy2(&(f16.u), src_ptr); - tinyexr::FP32 f32 = half_to_float(f16); - deep_image->image[c][y][x] = f32.f; - } - data_offset += sizeof(short) * static_cast(samples_per_line); - } else { // float - for (size_t x = 0; x < static_cast(samples_per_line); x++) { - float f; - const float *src_ptr = reinterpret_cast( - &sample_data.at(size_t(data_offset) + x * sizeof(float))); - tinyexr::cpy4(&f, src_ptr); - deep_image->image[c][y][x] = f; - } - data_offset += sizeof(float) * static_cast(samples_per_line); - } - } - } - } // y - - deep_image->width = data_width; - deep_image->height = data_height; - - deep_image->channel_names = static_cast( - malloc(sizeof(const char *) * static_cast(num_channels))); - for (size_t c = 0; c < static_cast(num_channels); c++) { -#ifdef _WIN32 - deep_image->channel_names[c] = _strdup(channels[c].name.c_str()); -#else - deep_image->channel_names[c] = strdup(channels[c].name.c_str()); -#endif - } - deep_image->num_channels = num_channels; - - return TINYEXR_SUCCESS; -} - -void InitEXRImage(EXRImage *exr_image) { - if (exr_image == NULL) { - return; - } - - exr_image->width = 0; - exr_image->height = 0; - exr_image->num_channels = 0; - - exr_image->images = NULL; - exr_image->tiles = NULL; - - exr_image->num_tiles = 0; -} - -void FreeEXRErrorMessage(const char *msg) { - if (msg) { - free(reinterpret_cast(const_cast(msg))); - } - return; -} - -void InitEXRHeader(EXRHeader *exr_header) { - if (exr_header == NULL) { - return; - } - - memset(exr_header, 0, sizeof(EXRHeader)); -} - -int FreeEXRHeader(EXRHeader *exr_header) { - if (exr_header == NULL) { - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - if (exr_header->channels) { - free(exr_header->channels); - } - - if (exr_header->pixel_types) { - free(exr_header->pixel_types); - } - - if (exr_header->requested_pixel_types) { - free(exr_header->requested_pixel_types); - } - - for (int i = 0; i < exr_header->num_custom_attributes; i++) { - if (exr_header->custom_attributes[i].value) { - free(exr_header->custom_attributes[i].value); - } - } - - if (exr_header->custom_attributes) { - free(exr_header->custom_attributes); - } - - return TINYEXR_SUCCESS; -} - -int FreeEXRImage(EXRImage *exr_image) { - if (exr_image == NULL) { - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - for (int i = 0; i < exr_image->num_channels; i++) { - if (exr_image->images && exr_image->images[i]) { - free(exr_image->images[i]); - } - } - - if (exr_image->images) { - free(exr_image->images); - } - - if (exr_image->tiles) { - for (int tid = 0; tid < exr_image->num_tiles; tid++) { - for (int i = 0; i < exr_image->num_channels; i++) { - if (exr_image->tiles[tid].images && exr_image->tiles[tid].images[i]) { - free(exr_image->tiles[tid].images[i]); - } - } - if (exr_image->tiles[tid].images) { - free(exr_image->tiles[tid].images); - } - } - free(exr_image->tiles); - } - - return TINYEXR_SUCCESS; -} - -int ParseEXRHeaderFromFile(EXRHeader *exr_header, const EXRVersion *exr_version, - const char *filename, const char **err) { - if (exr_header == NULL || exr_version == NULL || filename == NULL) { - tinyexr::SetErrorMessage("Invalid argument for ParseEXRHeaderFromFile", - err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "rb"); -#else - FILE *fp = fopen(filename, "rb"); -#endif - if (!fp) { - tinyexr::SetErrorMessage("Cannot read file " + std::string(filename), err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } - - size_t filesize; - // Compute size - fseek(fp, 0, SEEK_END); - filesize = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - std::vector buf(filesize); // @todo { use mmap } - { - size_t ret; - ret = fread(&buf[0], 1, filesize, fp); - assert(ret == filesize); - fclose(fp); - - if (ret != filesize) { - tinyexr::SetErrorMessage("fread() error on " + std::string(filename), - err); - return TINYEXR_ERROR_INVALID_FILE; - } - } - - return ParseEXRHeaderFromMemory(exr_header, exr_version, &buf.at(0), filesize, - err); -} - -int ParseEXRMultipartHeaderFromMemory(EXRHeader ***exr_headers, - int *num_headers, - const EXRVersion *exr_version, - const unsigned char *memory, size_t size, - const char **err) { - if (memory == NULL || exr_headers == NULL || num_headers == NULL || - exr_version == NULL) { - // Invalid argument - tinyexr::SetErrorMessage( - "Invalid argument for ParseEXRMultipartHeaderFromMemory", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - if (size < tinyexr::kEXRVersionSize) { - tinyexr::SetErrorMessage("Data size too short", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - const unsigned char *marker = memory + tinyexr::kEXRVersionSize; - size_t marker_size = size - tinyexr::kEXRVersionSize; - - std::vector infos; - - for (;;) { - tinyexr::HeaderInfo info; - info.clear(); - - std::string err_str; - bool empty_header = false; - int ret = ParseEXRHeader(&info, &empty_header, exr_version, &err_str, - marker, marker_size); - - if (ret != TINYEXR_SUCCESS) { - tinyexr::SetErrorMessage(err_str, err); - return ret; - } - - if (empty_header) { - marker += 1; // skip '\0' - break; - } - - // `chunkCount` must exist in the header. - if (info.chunk_count == 0) { - tinyexr::SetErrorMessage( - "`chunkCount' attribute is not found in the header.", err); - return TINYEXR_ERROR_INVALID_DATA; - } - - infos.push_back(info); - - // move to next header. - marker += info.header_len; - size -= info.header_len; - } - - // allocate memory for EXRHeader and create array of EXRHeader pointers. - (*exr_headers) = - static_cast(malloc(sizeof(EXRHeader *) * infos.size())); - for (size_t i = 0; i < infos.size(); i++) { - EXRHeader *exr_header = static_cast(malloc(sizeof(EXRHeader))); - - ConvertHeader(exr_header, infos[i]); - - // transfoer `tiled` from version. - exr_header->tiled = exr_version->tiled; - - (*exr_headers)[i] = exr_header; - } - - (*num_headers) = static_cast(infos.size()); - - return TINYEXR_SUCCESS; -} - -int ParseEXRMultipartHeaderFromFile(EXRHeader ***exr_headers, int *num_headers, - const EXRVersion *exr_version, - const char *filename, const char **err) { - if (exr_headers == NULL || num_headers == NULL || exr_version == NULL || - filename == NULL) { - tinyexr::SetErrorMessage( - "Invalid argument for ParseEXRMultipartHeaderFromFile()", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "rb"); -#else - FILE *fp = fopen(filename, "rb"); -#endif - if (!fp) { - tinyexr::SetErrorMessage("Cannot read file " + std::string(filename), err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } - - size_t filesize; - // Compute size - fseek(fp, 0, SEEK_END); - filesize = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - std::vector buf(filesize); // @todo { use mmap } - { - size_t ret; - ret = fread(&buf[0], 1, filesize, fp); - assert(ret == filesize); - fclose(fp); - - if (ret != filesize) { - tinyexr::SetErrorMessage("`fread' error. file may be corrupted.", err); - return TINYEXR_ERROR_INVALID_FILE; - } - } - - return ParseEXRMultipartHeaderFromMemory( - exr_headers, num_headers, exr_version, &buf.at(0), filesize, err); -} - -int ParseEXRVersionFromMemory(EXRVersion *version, const unsigned char *memory, - size_t size) { - if (version == NULL || memory == NULL) { - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - if (size < tinyexr::kEXRVersionSize) { - return TINYEXR_ERROR_INVALID_DATA; - } - - const unsigned char *marker = memory; - - // Header check. - { - const char header[] = {0x76, 0x2f, 0x31, 0x01}; - - if (memcmp(marker, header, 4) != 0) { - return TINYEXR_ERROR_INVALID_MAGIC_NUMBER; - } - marker += 4; - } - - version->tiled = false; - version->long_name = false; - version->non_image = false; - version->multipart = false; - - // Parse version header. - { - // must be 2 - if (marker[0] != 2) { - return TINYEXR_ERROR_INVALID_EXR_VERSION; - } - - if (version == NULL) { - return TINYEXR_SUCCESS; // May OK - } - - version->version = 2; - - if (marker[1] & 0x2) { // 9th bit - version->tiled = true; - } - if (marker[1] & 0x4) { // 10th bit - version->long_name = true; - } - if (marker[1] & 0x8) { // 11th bit - version->non_image = true; // (deep image) - } - if (marker[1] & 0x10) { // 12th bit - version->multipart = true; - } - } - - return TINYEXR_SUCCESS; -} - -int ParseEXRVersionFromFile(EXRVersion *version, const char *filename) { - if (filename == NULL) { - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "rb"); -#else - FILE *fp = fopen(filename, "rb"); -#endif - if (!fp) { - return TINYEXR_ERROR_CANT_OPEN_FILE; - } - - size_t file_size; - // Compute size - fseek(fp, 0, SEEK_END); - file_size = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - if (file_size < tinyexr::kEXRVersionSize) { - return TINYEXR_ERROR_INVALID_FILE; - } - - unsigned char buf[tinyexr::kEXRVersionSize]; - size_t ret = fread(&buf[0], 1, tinyexr::kEXRVersionSize, fp); - fclose(fp); - - if (ret != tinyexr::kEXRVersionSize) { - return TINYEXR_ERROR_INVALID_FILE; - } - - return ParseEXRVersionFromMemory(version, buf, tinyexr::kEXRVersionSize); -} - -int LoadEXRMultipartImageFromMemory(EXRImage *exr_images, - const EXRHeader **exr_headers, - unsigned int num_parts, - const unsigned char *memory, - const size_t size, const char **err) { - if (exr_images == NULL || exr_headers == NULL || num_parts == 0 || - memory == NULL || (size <= tinyexr::kEXRVersionSize)) { - tinyexr::SetErrorMessage( - "Invalid argument for LoadEXRMultipartImageFromMemory()", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - // compute total header size. - size_t total_header_size = 0; - for (unsigned int i = 0; i < num_parts; i++) { - if (exr_headers[i]->header_len == 0) { - tinyexr::SetErrorMessage("EXRHeader variable is not initialized.", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - total_header_size += exr_headers[i]->header_len; - } - - const char *marker = reinterpret_cast( - memory + total_header_size + 4 + - 4); // +8 for magic number and version header. - - marker += 1; // Skip empty header. - - // NOTE 1: - // In multipart image, There is 'part number' before chunk data. - // 4 byte : part number - // 4+ : chunk - // - // NOTE 2: - // EXR spec says 'part number' is 'unsigned long' but actually this is - // 'unsigned int(4 bytes)' in OpenEXR implementation... - // http://www.openexr.com/openexrfilelayout.pdf - - // Load chunk offset table. - std::vector > chunk_offset_table_list; - for (size_t i = 0; i < static_cast(num_parts); i++) { - std::vector offset_table( - static_cast(exr_headers[i]->chunk_count)); - - for (size_t c = 0; c < offset_table.size(); c++) { - tinyexr::tinyexr_uint64 offset; - memcpy(&offset, marker, 8); - tinyexr::swap8(&offset); - - if (offset >= size) { - tinyexr::SetErrorMessage("Invalid offset size in EXR header chunks.", - err); - return TINYEXR_ERROR_INVALID_DATA; - } - - offset_table[c] = offset + 4; // +4 to skip 'part number' - marker += 8; - } - - chunk_offset_table_list.push_back(offset_table); - } - - // Decode image. - for (size_t i = 0; i < static_cast(num_parts); i++) { - std::vector &offset_table = - chunk_offset_table_list[i]; - - // First check 'part number' is identitical to 'i' - for (size_t c = 0; c < offset_table.size(); c++) { - const unsigned char *part_number_addr = - memory + offset_table[c] - 4; // -4 to move to 'part number' field. - unsigned int part_no; - memcpy(&part_no, part_number_addr, sizeof(unsigned int)); // 4 - tinyexr::swap4(&part_no); - - if (part_no != i) { - tinyexr::SetErrorMessage("Invalid `part number' in EXR header chunks.", - err); - return TINYEXR_ERROR_INVALID_DATA; - } - } - - std::string e; - int ret = tinyexr::DecodeChunk(&exr_images[i], exr_headers[i], offset_table, - memory, size, &e); - if (ret != TINYEXR_SUCCESS) { - if (!e.empty()) { - tinyexr::SetErrorMessage(e, err); - } - return ret; - } - } - - return TINYEXR_SUCCESS; -} - -int LoadEXRMultipartImageFromFile(EXRImage *exr_images, - const EXRHeader **exr_headers, - unsigned int num_parts, const char *filename, - const char **err) { - if (exr_images == NULL || exr_headers == NULL || num_parts == 0) { - tinyexr::SetErrorMessage( - "Invalid argument for LoadEXRMultipartImageFromFile", err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - -#ifdef _WIN32 - FILE *fp = NULL; - fopen_s(&fp, filename, "rb"); -#else - FILE *fp = fopen(filename, "rb"); -#endif - if (!fp) { - tinyexr::SetErrorMessage("Cannot read file " + std::string(filename), err); - return TINYEXR_ERROR_CANT_OPEN_FILE; - } - - size_t filesize; - // Compute size - fseek(fp, 0, SEEK_END); - filesize = static_cast(ftell(fp)); - fseek(fp, 0, SEEK_SET); - - std::vector buf(filesize); // @todo { use mmap } - { - size_t ret; - ret = fread(&buf[0], 1, filesize, fp); - assert(ret == filesize); - fclose(fp); - (void)ret; - } - - return LoadEXRMultipartImageFromMemory(exr_images, exr_headers, num_parts, - &buf.at(0), filesize, err); -} - -int SaveEXR(const float *data, int width, int height, int components, - const int save_as_fp16, const char *outfilename, const char **err) { - if ((components == 1) || components == 3 || components == 4) { - // OK - } else { - std::stringstream ss; - ss << "Unsupported component value : " << components << std::endl; - - tinyexr::SetErrorMessage(ss.str(), err); - return TINYEXR_ERROR_INVALID_ARGUMENT; - } - - EXRHeader header; - InitEXRHeader(&header); - - if ((width < 16) && (height < 16)) { - // No compression for small image. - header.compression_type = TINYEXR_COMPRESSIONTYPE_NONE; - } else { - header.compression_type = TINYEXR_COMPRESSIONTYPE_ZIP; - } - - EXRImage image; - InitEXRImage(&image); - - image.num_channels = components; - - std::vector images[4]; - - if (components == 1) { - images[0].resize(static_cast(width * height)); - memcpy(images[0].data(), data, sizeof(float) * size_t(width * height)); - } else { - images[0].resize(static_cast(width * height)); - images[1].resize(static_cast(width * height)); - images[2].resize(static_cast(width * height)); - images[3].resize(static_cast(width * height)); - - // Split RGB(A)RGB(A)RGB(A)... into R, G and B(and A) layers - for (size_t i = 0; i < static_cast(width * height); i++) { - images[0][i] = data[static_cast(components) * i + 0]; - images[1][i] = data[static_cast(components) * i + 1]; - images[2][i] = data[static_cast(components) * i + 2]; - if (components == 4) { - images[3][i] = data[static_cast(components) * i + 3]; - } - } - } - - float *image_ptr[4] = {0, 0, 0, 0}; - if (components == 4) { - image_ptr[0] = &(images[3].at(0)); // A - image_ptr[1] = &(images[2].at(0)); // B - image_ptr[2] = &(images[1].at(0)); // G - image_ptr[3] = &(images[0].at(0)); // R - } else if (components == 3) { - image_ptr[0] = &(images[2].at(0)); // B - image_ptr[1] = &(images[1].at(0)); // G - image_ptr[2] = &(images[0].at(0)); // R - } else if (components == 1) { - image_ptr[0] = &(images[0].at(0)); // A - } - - image.images = reinterpret_cast(image_ptr); - image.width = width; - image.height = height; - - header.num_channels = components; - header.channels = static_cast(malloc( - sizeof(EXRChannelInfo) * static_cast(header.num_channels))); - // Must be (A)BGR order, since most of EXR viewers expect this channel order. - if (components == 4) { -#ifdef _MSC_VER - strncpy_s(header.channels[0].name, "A", 255); - strncpy_s(header.channels[1].name, "B", 255); - strncpy_s(header.channels[2].name, "G", 255); - strncpy_s(header.channels[3].name, "R", 255); -#else - strncpy(header.channels[0].name, "A", 255); - strncpy(header.channels[1].name, "B", 255); - strncpy(header.channels[2].name, "G", 255); - strncpy(header.channels[3].name, "R", 255); -#endif - header.channels[0].name[strlen("A")] = '\0'; - header.channels[1].name[strlen("B")] = '\0'; - header.channels[2].name[strlen("G")] = '\0'; - header.channels[3].name[strlen("R")] = '\0'; - } else if (components == 3) { -#ifdef _MSC_VER - strncpy_s(header.channels[0].name, "B", 255); - strncpy_s(header.channels[1].name, "G", 255); - strncpy_s(header.channels[2].name, "R", 255); -#else - strncpy(header.channels[0].name, "B", 255); - strncpy(header.channels[1].name, "G", 255); - strncpy(header.channels[2].name, "R", 255); -#endif - header.channels[0].name[strlen("B")] = '\0'; - header.channels[1].name[strlen("G")] = '\0'; - header.channels[2].name[strlen("R")] = '\0'; - } else { -#ifdef _MSC_VER - strncpy_s(header.channels[0].name, "A", 255); -#else - strncpy(header.channels[0].name, "A", 255); -#endif - header.channels[0].name[strlen("A")] = '\0'; - } - - header.pixel_types = static_cast( - malloc(sizeof(int) * static_cast(header.num_channels))); - header.requested_pixel_types = static_cast( - malloc(sizeof(int) * static_cast(header.num_channels))); - for (int i = 0; i < header.num_channels; i++) { - header.pixel_types[i] = - TINYEXR_PIXELTYPE_FLOAT; // pixel type of input image - - if (save_as_fp16 > 0) { - header.requested_pixel_types[i] = - TINYEXR_PIXELTYPE_HALF; // save with half(fp16) pixel format - } else { - header.requested_pixel_types[i] = - TINYEXR_PIXELTYPE_FLOAT; // save with float(fp32) pixel format(i.e. - // no precision reduction) - } - } - - int ret = SaveEXRImageToFile(&image, &header, outfilename, err); - if (ret != TINYEXR_SUCCESS) { - return ret; - } - - free(header.channels); - free(header.pixel_types); - free(header.requested_pixel_types); - - return ret; -} - -#ifdef __clang__ -// zero-as-null-ppinter-constant -#pragma clang diagnostic pop -#endif - -#endif // TINYEXR_IMPLEMENTATION_DEIFNED -#endif // TINYEXR_IMPLEMENTATION diff --git a/zenovis/xinxinoptix/SDK/support/tinygltf/LICENSE b/zenovis/xinxinoptix/SDK/support/tinygltf/LICENSE deleted file mode 100644 index 34398adf07..0000000000 --- a/zenovis/xinxinoptix/SDK/support/tinygltf/LICENSE +++ /dev/null @@ -1,21 +0,0 @@ -MIT License - -Copyright (c) 2017 Syoyo Fujita, Aurélien Chatelain and many contributors - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/zenovis/xinxinoptix/SDK/support/tinygltf/json.hpp b/zenovis/xinxinoptix/SDK/support/tinygltf/json.hpp deleted file mode 100644 index c9af0bed36..0000000000 --- a/zenovis/xinxinoptix/SDK/support/tinygltf/json.hpp +++ /dev/null @@ -1,20406 +0,0 @@ -/* - __ _____ _____ _____ - __| | __| | | | JSON for Modern C++ -| | |__ | | | | | | version 3.5.0 -|_____|_____|_____|_|___| https://github.com/nlohmann/json - -Licensed under the MIT License . -SPDX-License-Identifier: MIT -Copyright (c) 2013-2018 Niels Lohmann . - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ - -#ifndef NLOHMANN_JSON_HPP -#define NLOHMANN_JSON_HPP - -#define NLOHMANN_JSON_VERSION_MAJOR 3 -#define NLOHMANN_JSON_VERSION_MINOR 5 -#define NLOHMANN_JSON_VERSION_PATCH 0 - -#include // all_of, find, for_each -#include // assert -#include // and, not, or -#include // nullptr_t, ptrdiff_t, size_t -#include // hash, less -#include // initializer_list -#include // istream, ostream -#include // random_access_iterator_tag -#include // accumulate -#include // string, stoi, to_string -#include // declval, forward, move, pair, swap - -// #include -#ifndef NLOHMANN_JSON_FWD_HPP -#define NLOHMANN_JSON_FWD_HPP - -#include // int64_t, uint64_t -#include // map -#include // allocator -#include // string -#include // vector - -/*! -@brief namespace for Niels Lohmann -@see https://github.com/nlohmann -@since version 1.0.0 -*/ -namespace nlohmann -{ -/*! -@brief default JSONSerializer template argument - -This serializer ignores the template arguments and uses ADL -([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl)) -for serialization. -*/ -template -struct adl_serializer; - -template class ObjectType = - std::map, - template class ArrayType = std::vector, - class StringType = std::string, class BooleanType = bool, - class NumberIntegerType = std::int64_t, - class NumberUnsignedType = std::uint64_t, - class NumberFloatType = double, - template class AllocatorType = std::allocator, - template class JSONSerializer = - adl_serializer> -class basic_json; - -/*! -@brief JSON Pointer - -A JSON pointer defines a string syntax for identifying a specific value -within a JSON document. It can be used with functions `at` and -`operator[]`. Furthermore, JSON pointers are the base for JSON patches. - -@sa [RFC 6901](https://tools.ietf.org/html/rfc6901) - -@since version 2.0.0 -*/ -template -class json_pointer; - -/*! -@brief default JSON class - -This type is the default specialization of the @ref basic_json class which -uses the standard template types. - -@since version 1.0.0 -*/ -using json = basic_json<>; -} // namespace nlohmann - -#endif - -// #include - - -// This file contains all internal macro definitions -// You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them - -// exclude unsupported compilers -#if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK) - #if defined(__clang__) - #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400 - #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers" - #endif - #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER)) - #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800 - #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers" - #endif - #endif -#endif - -// disable float-equal warnings on GCC/clang -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wfloat-equal" -#endif - -// disable documentation warnings on clang -#if defined(__clang__) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wdocumentation" -#endif - -// allow for portable deprecation warnings -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #define JSON_DEPRECATED __attribute__((deprecated)) -#elif defined(_MSC_VER) - #define JSON_DEPRECATED __declspec(deprecated) -#else - #define JSON_DEPRECATED -#endif - -// allow to disable exceptions -#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION) - #define JSON_THROW(exception) throw exception - #define JSON_TRY try - #define JSON_CATCH(exception) catch(exception) - #define JSON_INTERNAL_CATCH(exception) catch(exception) -#else - #define JSON_THROW(exception) std::abort() - #define JSON_TRY if(true) - #define JSON_CATCH(exception) if(false) - #define JSON_INTERNAL_CATCH(exception) if(false) -#endif - -// override exception macros -#if defined(JSON_THROW_USER) - #undef JSON_THROW - #define JSON_THROW JSON_THROW_USER -#endif -#if defined(JSON_TRY_USER) - #undef JSON_TRY - #define JSON_TRY JSON_TRY_USER -#endif -#if defined(JSON_CATCH_USER) - #undef JSON_CATCH - #define JSON_CATCH JSON_CATCH_USER - #undef JSON_INTERNAL_CATCH - #define JSON_INTERNAL_CATCH JSON_CATCH_USER -#endif -#if defined(JSON_INTERNAL_CATCH_USER) - #undef JSON_INTERNAL_CATCH - #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER -#endif - -// manual branch prediction -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #define JSON_LIKELY(x) __builtin_expect(!!(x), 1) - #define JSON_UNLIKELY(x) __builtin_expect(!!(x), 0) -#else - #define JSON_LIKELY(x) x - #define JSON_UNLIKELY(x) x -#endif - -// C++ language standard detection -#if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464 - #define JSON_HAS_CPP_17 - #define JSON_HAS_CPP_14 -#elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1) - #define JSON_HAS_CPP_14 -#endif - -/*! -@brief macro to briefly define a mapping between an enum and JSON -@def NLOHMANN_JSON_SERIALIZE_ENUM -@since version 3.4.0 -*/ -#define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...) \ - template \ - inline void to_json(BasicJsonType& j, const ENUM_TYPE& e) \ - { \ - static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ - static const std::pair m[] = __VA_ARGS__; \ - auto it = std::find_if(std::begin(m), std::end(m), \ - [e](const std::pair& ej_pair) -> bool \ - { \ - return ej_pair.first == e; \ - }); \ - j = ((it != std::end(m)) ? it : std::begin(m))->second; \ - } \ - template \ - inline void from_json(const BasicJsonType& j, ENUM_TYPE& e) \ - { \ - static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ - static const std::pair m[] = __VA_ARGS__; \ - auto it = std::find_if(std::begin(m), std::end(m), \ - [j](const std::pair& ej_pair) -> bool \ - { \ - return ej_pair.second == j; \ - }); \ - e = ((it != std::end(m)) ? it : std::begin(m))->first; \ - } - -// Ugly macros to avoid uglier copy-paste when specializing basic_json. They -// may be removed in the future once the class is split. - -#define NLOHMANN_BASIC_JSON_TPL_DECLARATION \ - template class ObjectType, \ - template class ArrayType, \ - class StringType, class BooleanType, class NumberIntegerType, \ - class NumberUnsignedType, class NumberFloatType, \ - template class AllocatorType, \ - template class JSONSerializer> - -#define NLOHMANN_BASIC_JSON_TPL \ - basic_json - -// #include - - -#include // not -#include // size_t -#include // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type - -namespace nlohmann -{ -namespace detail -{ -// alias templates to reduce boilerplate -template -using enable_if_t = typename std::enable_if::type; - -template -using uncvref_t = typename std::remove_cv::type>::type; - -// implementation of C++14 index_sequence and affiliates -// source: https://stackoverflow.com/a/32223343 -template -struct index_sequence -{ - using type = index_sequence; - using value_type = std::size_t; - static constexpr std::size_t size() noexcept - { - return sizeof...(Ints); - } -}; - -template -struct merge_and_renumber; - -template -struct merge_and_renumber, index_sequence> - : index_sequence < I1..., (sizeof...(I1) + I2)... > {}; - -template -struct make_index_sequence - : merge_and_renumber < typename make_index_sequence < N / 2 >::type, - typename make_index_sequence < N - N / 2 >::type > {}; - -template<> struct make_index_sequence<0> : index_sequence<> {}; -template<> struct make_index_sequence<1> : index_sequence<0> {}; - -template -using index_sequence_for = make_index_sequence; - -// dispatch utility (taken from ranges-v3) -template struct priority_tag : priority_tag < N - 1 > {}; -template<> struct priority_tag<0> {}; - -// taken from ranges-v3 -template -struct static_const -{ - static constexpr T value{}; -}; - -template -constexpr T static_const::value; -} // namespace detail -} // namespace nlohmann - -// #include - - -#include // not -#include // numeric_limits -#include // false_type, is_constructible, is_integral, is_same, true_type -#include // declval - -// #include - -// #include - - -#include // random_access_iterator_tag - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template struct make_void -{ - using type = void; -}; -template using void_t = typename make_void::type; -} // namespace detail -} // namespace nlohmann - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -struct iterator_types {}; - -template -struct iterator_types < - It, - void_t> -{ - using difference_type = typename It::difference_type; - using value_type = typename It::value_type; - using pointer = typename It::pointer; - using reference = typename It::reference; - using iterator_category = typename It::iterator_category; -}; - -// This is required as some compilers implement std::iterator_traits in a way that -// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341. -template -struct iterator_traits -{ -}; - -template -struct iterator_traits < T, enable_if_t < !std::is_pointer::value >> - : iterator_types -{ -}; - -template -struct iterator_traits::value>> -{ - using iterator_category = std::random_access_iterator_tag; - using value_type = T; - using difference_type = ptrdiff_t; - using pointer = T*; - using reference = T&; -}; -} -} - -// #include - -// #include - - -#include - -// #include - - -// http://en.cppreference.com/w/cpp/experimental/is_detected -namespace nlohmann -{ -namespace detail -{ -struct nonesuch -{ - nonesuch() = delete; - ~nonesuch() = delete; - nonesuch(nonesuch const&) = delete; - void operator=(nonesuch const&) = delete; -}; - -template class Op, - class... Args> -struct detector -{ - using value_t = std::false_type; - using type = Default; -}; - -template class Op, class... Args> -struct detector>, Op, Args...> -{ - using value_t = std::true_type; - using type = Op; -}; - -template