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dcraw_api.cc
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dcraw_api.cc
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/*
* UFRaw - Unidentified Flying Raw converter for digital camera images
*
* dcraw_api.cc - API for DCRaw
* Copyright 2004-2016 by Udi Fuchs
*
* based on dcraw by Dave Coffin
* http://www.cybercom.net/~dcoffin/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h> /* for sqrt() */
#include <setjmp.h>
#include <errno.h>
#include <float.h>
#include "uf_glib.h"
#include <glib/gi18n.h> /*For _(String) definition - NKBJ*/
#include <sys/types.h>
#include "dcraw_api.h"
#include "dcraw.h"
#define FORC(cnt) for (c=0; c < cnt; c++)
#define FORC3 FORC(3)
#define FORC4 FORC(4)
#define FORCC FORC(colors)
#define LIM(x,min,max) MAX(min,MIN(x,max))
#define CLIP(x) LIM((int)(x),0,65535)
extern "C" {
int fcol_INDI(const unsigned filters, const int row, const int col,
const int top_margin, const int left_margin,
/*const*/ char xtrans[6][6]);
void wavelet_denoise_INDI(gushort(*image)[4], const int black,
const int iheight, const int iwidth, const int height, const int width,
const int colors, const int shrink, const float pre_mul[4],
const float threshold, const unsigned filters);
void scale_colors_INDI(const int maximum, const int black,
const int use_camera_wb, const float cam_mul[4], const int colors,
float pre_mul[4], const unsigned filters, /*const*/ gushort white[8][8],
const char *ifname_display, void *dcraw);
void lin_interpolate_INDI(gushort(*image)[4], const unsigned filters,
const int width, const int height,
const int colors, void *dcraw, dcraw_data *h);
void vng_interpolate_INDI(gushort(*image)[4], const unsigned filters,
const int width, const int height, const int colors, const int rgb_max,
void *dcraw, dcraw_data *h);
void xtrans_interpolate_INDI(ushort(*image)[4], const unsigned filters,
const int width, const int height,
const int colors, const float rgb_cam[3][4],
void *dcraw, dcraw_data *hh, const int passes);
void ahd_interpolate_INDI(gushort(*image)[4], const unsigned filters,
const int width, const int height, const int colors, float rgb_cam[3][4],
void *dcraw, dcraw_data *h);
void color_smooth(gushort(*image)[4], const int width, const int height,
const int passes);
void ppg_interpolate_INDI(gushort(*image)[4], const unsigned filters,
const int width, const int height, const int colors, void *dcraw, dcraw_data *h);
void flip_image_INDI(gushort(*image)[4], int *height_p, int *width_p,
const int flip);
void fuji_rotate_INDI(gushort(**image_p)[4], int *height_p, int *width_p,
int *fuji_width_p, const int colors, const double step, void *dcraw);
int dcraw_open(dcraw_data *h, char *filename)
{
DCRaw *d = new DCRaw;
int c, i;
#ifndef LOCALTIME
putenv(const_cast<char *>("TZ=UTC"));
#endif
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
d->verbose = 1;
d->ifname = g_strdup(filename);
d->ifname_display = g_filename_display_name(d->ifname);
if (setjmp(d->failure)) {
d->dcraw_message(DCRAW_ERROR, _("Fatal internal error\n"));
h->message = d->messageBuffer;
delete d;
return DCRAW_ERROR;
}
if (!(d->ifp = g_fopen(d->ifname, "rb"))) {
gchar *err_u8 = g_locale_to_utf8(strerror(errno), -1, NULL, NULL, NULL);
d->dcraw_message(DCRAW_OPEN_ERROR, _("Cannot open file %s: %s\n"),
d->ifname_display, err_u8);
g_free(err_u8);
h->message = d->messageBuffer;
delete d;
return DCRAW_OPEN_ERROR;
}
d->identify();
/* We first check if dcraw recognizes the file, this is equivalent
* to 'dcraw -i' succeeding */
if (!d->make[0]) {
d->dcraw_message(DCRAW_OPEN_ERROR, _("%s: unsupported file format.\n"),
d->ifname_display);
fclose(d->ifp);
h->message = d->messageBuffer;
int lastStatus = d->lastStatus;
delete d;
return lastStatus;
}
/* Next we check if dcraw can decode the file */
if (!d->is_raw) {
d->dcraw_message(DCRAW_OPEN_ERROR, _("Cannot decode file %s\n"),
d->ifname_display);
fclose(d->ifp);
h->message = d->messageBuffer;
int lastStatus = d->lastStatus;
delete d;
return lastStatus;
}
if (d->load_raw == &DCRaw::kodak_ycbcr_load_raw) {
d->height += d->height & 1;
d->width += d->width & 1;
}
/* Pass class variables to the handler on two conditions:
* 1. They are needed at this stage.
* 2. They where set in identify() and won't change in load_raw() */
h->dcraw = d;
h->ifp = d->ifp;
h->height = d->height;
h->width = d->width;
h->fuji_width = d->fuji_width;
h->fuji_step = sqrt(0.5);
h->fuji_dr = d->fuji_dr;
h->colors = d->colors;
h->filters = d->filters;
h->raw_color = d->raw_color;
h->top_margin = d->top_margin;
h->left_margin = d->left_margin;
memcpy(h->cam_mul, d->cam_mul, sizeof d->cam_mul);
// maximum and black might change during load_raw. We need them for the
// camera-wb. If they'll change we will recalculate the camera-wb.
h->rgbMax = d->maximum;
i = d->cblack[3];
FORC3 if ((unsigned)i > d->cblack[c]) i = d->cblack[c];
FORC4 d->cblack[c] -= i;
d->black += i;
i = d->cblack[6];
FORC(d->cblack[4] * d->cblack[5])
if (i > d->cblack[6 + c]) i = d->cblack[6 + c];
FORC(d->cblack[4] * d->cblack[5])
d->cblack[6 + c] -= i;
d->black += i;
h->black = d->black;
h->shrink = d->shrink = (h->filters == 1 || h->filters > 1000);
h->pixel_aspect = d->pixel_aspect;
/* copied from dcraw's main() */
switch ((d->flip + 3600) % 360) {
case 270:
d->flip = 5;
break;
case 180:
d->flip = 3;
break;
case 90:
d->flip = 6;
}
h->flip = d->flip;
h->toneCurveSize = d->tone_curve_size;
h->toneCurveOffset = d->tone_curve_offset;
h->toneModeOffset = d->tone_mode_offset;
h->toneModeSize = d->tone_mode_size;
g_strlcpy(h->make, d->make, 80);
g_strlcpy(h->model, d->model, 80);
h->iso_speed = d->iso_speed;
h->shutter = d->shutter;
h->aperture = d->aperture;
h->focal_len = d->focal_len;
h->timestamp = d->timestamp;
h->raw.image = NULL;
h->thumbType = unknown_thumb_type;
h->message = d->messageBuffer;
memcpy(h->xtrans, d->xtrans, sizeof d->xtrans);
return d->lastStatus;
}
void dcraw_image_dimensions(dcraw_data *raw, int flip, int shrink,
int *height, int *width)
{
// Effect of dcraw_finilize_shrink()
*width = raw->width / shrink;
*height = raw->height / shrink;
// Effect of fuji_rotate_INDI() */
if (raw->fuji_width) {
int fuji_width = raw->fuji_width / shrink - 1;
*width = fuji_width / raw->fuji_step;
*height = (*height - fuji_width) / raw->fuji_step;
}
// Effect of dcraw_image_stretch()
if (raw->pixel_aspect < 1)
*height = *height / raw->pixel_aspect + 0.5;
if (raw->pixel_aspect > 1)
*width = *width * raw->pixel_aspect + 0.5;
// Effect of dcraw_flip_image()
if (flip & 4) {
int tmp = *height;
*height = *width;
*width = tmp;
}
}
void fuji_merge(DCRaw *d, ushort *saved_raw_image, float saved_cam_mul[4], int saved_fuji_dr)
{
int i, j, c, s;
unsigned b;
float S, R, w, l, m, th, tl, mul[4][4];
if (d->fuji_width) { /* Super CCD SR */
/* Populate a small array for converting the whitebalance */
/* of the second image to that of the first one. */
if (d->fuji_layout) {
/* First generation Super CCD SR (S20Pro, F700, F710) */
/* Many of these sensors are defective and have a colourcast. */
/* RBRB */
/* GGGG */
/* BRBR */
/* GGGG */
mul[1][1] = mul[1][0] = mul[1][2] = mul[1][3] = 1;
mul[3][1] = mul[3][0] = mul[3][2] = mul[3][3] = 1;
mul[0][0] = mul[0][2] = mul[2][1] = mul[2][3] = d->cam_mul[0] / saved_cam_mul[0];
mul[0][1] = mul[0][3] = mul[2][0] = mul[2][2] = d->cam_mul[2] / saved_cam_mul[2];
} else { /* Super CCD SR II (S3Pro, S5Pro) */
/* RGBG */
/* BGRG */
/* RGBG */
/* BGRG */
mul[0][1] = mul[0][3] = mul[1][1] = mul[1][3] = 1;
mul[2][1] = mul[2][3] = mul[3][1] = mul[3][3] = 1;
mul[0][0] = mul[1][2] = mul[2][0] = mul[3][2] = d->cam_mul[0] / saved_cam_mul[0];
mul[0][2] = mul[1][0] = mul[2][2] = mul[3][0] = d->cam_mul[2] / saved_cam_mul[2];
}
for (i = 0 ; i < d->raw_height; i++)
for (j = 0 ; j < d->raw_width; j++) {
S = saved_raw_image[i * d->raw_width + j];
R = d->raw_image[i * d->raw_width + j] * mul[i & 3][j & 3] * 16;
/* Fade from S to R in one stop. */
/* Response of these sensors appears to be non-linear, */
/* causing a slight colourcast in the transition zone. */
if (S > 0x1f00) {
if (S < 0x3e00) {
w = (S - 0x1f00) / 0x1f00;
S = (1 - w) * S + w * R;
} else
S = R;
}
d->raw_image[i * d->raw_width + j] = CLIP((S * 0xffff / 0x2f000));
}
d->maximum = 0xffff;
FORC4 d->cam_mul[c] = saved_cam_mul[c];
d->fuji_dr = -400;
} else { /* EXR */
if (d->black)
b = d->black;
else
b = d->cblack[6];
s = (saved_fuji_dr - d->fuji_dr) / 100;
if (s) { /* DR-mode */
th = l = d->maximum - b;
m = 1 << s;
tl = th / m;
th += tl;
m += 1;
l *= m;
for (i = 0 ; i < d->raw_height * d->raw_width; i++) {
/* Range check to avoid problems when value is below black. */
S = LIM(saved_raw_image[i], b, d->maximum) - b;
R = LIM(d->raw_image[i], b, d->maximum) - b;
/* Adding R to S pixels reduces noise a bit. */
S += R;
R *= m;
/* Fade from S to R in ~1.5 or 2.25 stops. */
/* Response of EXR sensors appears to be linear. */
if (S > tl) {
if (S < th) {
w = (S - tl) / (th - tl);
S = (1 - w) * S + w * R;
} else
S = R;
}
/* l can be larger than 0xffff. */
d->raw_image[i] = CLIP(S * 0xffff / l);
}
d->maximum = 0xffff;
d->black = 0;
for (i = 6 ; i < 10 ; i++)
d->cblack[i] = 0;
//d->fuji_dr = saved_fuji_dr;
} else { /* Low-noise-mode */
for (i = 0 ; i < d->raw_height * d->raw_width ; i++)
d->raw_image[i] += saved_raw_image[i];
d->maximum *= 2;
d->black *= 2;
for (i = 6 ; i < 10 ; i++)
d->cblack[i] *= 2;
}
}
}
int dcraw_load_raw(dcraw_data *h)
{
/* 'volatile' supresses clobbering warning */
DCRaw * volatile d = (DCRaw *)h->dcraw;
int c, i, j;
double dmin;
start:
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
d->raw_image = 0;
if (setjmp(d->failure)) {
d->dcraw_message(DCRAW_ERROR, _("Fatal internal error\n"));
h->message = d->messageBuffer;
delete d;
return DCRAW_ERROR;
}
h->raw.height = d->iheight = (h->height + h->shrink) >> h->shrink;
h->raw.width = d->iwidth = (h->width + h->shrink) >> h->shrink;
h->raw.colors = d->colors;
h->fourColorFilters = d->filters;
if (d->filters || d->colors == 1) {
if (d->colors == 1 || d->filters == 1 || d->filters > 1000)
d->raw_image = (ushort *) g_malloc((d->raw_height + 7) * d->raw_width * 2);
else
d->raw_image = (ushort *) g_malloc(sizeof(dcraw_image_type) * (d->raw_height + 7) * d->raw_width);
} else {
h->raw.image = d->image = g_new0(dcraw_image_type, d->iheight * d->iwidth
+ d->meta_length);
d->meta_data = (char *)(d->image + d->iheight * d->iwidth);
}
d->dcraw_message(DCRAW_VERBOSE, _("Loading %s %s image from %s ...\n"),
d->make, d->model, d->ifname_display);
fseek(d->ifp, 0, SEEK_END);
d->ifpSize = ftell(d->ifp);
fseek(d->ifp, d->data_offset, SEEK_SET);
(d->*d->load_raw)();
/* multishot support, for now Pentax only. */
if (d->is_raw == 4 && !strncasecmp(d->make, "Pentax", 6)) {
int row, col, i;
int positions[4][2] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
static dcraw_image_type *tmp = NULL;
if (!tmp)
tmp = d->image = g_new0(dcraw_image_type, d->height * d->width + d->meta_length);
#ifdef _OPENMP
#pragma omp parallel for private(col)
#endif
for (row = 0 ; row < d->height ; row++)
for (col = 0 ; col < d->width ; col++)
tmp[row * d->width + col][fcol_INDI(d->filters, row + positions[d->shot_select][0], col + positions[d->shot_select][1], d->top_margin, d->left_margin, d->xtrans)] = d->raw_image[(row + d->top_margin + positions[d->shot_select][0]) * d->raw_width + col + d->left_margin + positions[d->shot_select][1]];
g_free(d->raw_image);
d->raw_image = NULL;
if (d->shot_select < 3) {
d->shot_select++;
fseek(d->ifp, 0, SEEK_SET);
d->identify();
goto start;
}
if (d->shot_select == 3) /* Just to keep the compiler happy. */
#ifdef _OPENMP
#pragma omp parallel for
#endif
for (i = 0 ; i < d->height * d->width ; i++)
tmp[i][1] = (tmp[i][1] + tmp[i][3]) / 2;
d->image = tmp;
d->shot_select = 0;
d->is_raw = 0;
d->filters = 0;
d->shrink = 0;
d->meta_data = (char *)(tmp + d->height * d->width);
h->raw.image = tmp;
h->filters = 0;
h->shrink = 0;
tmp = NULL;
}
/* Fuji Super CCD SR and EXR support */
if (d->is_raw == 2 && !strncasecmp(d->make, "Fujifilm", 8)) {
static int saved_fuji_dr;
static float saved_cam_mul[4];
static guint16 *saved_raw_image = NULL;
if (!saved_raw_image) {
saved_raw_image = d->raw_image;
d->raw_image = NULL;
saved_fuji_dr = d->fuji_dr;
FORC4 saved_cam_mul[c] = d->cam_mul[c];
d->shot_select++;
fseek(d->ifp, 0, SEEK_SET);
d->identify();
goto start;
}
fuji_merge(d, saved_raw_image, saved_cam_mul, saved_fuji_dr);
free(saved_raw_image);
saved_raw_image = NULL;
d->shot_select--;
FORC4 h->cam_mul[c] = d->cam_mul[c];
h->fuji_dr = d->fuji_dr;
h->filters = d->filters;
h->rgbMax = d->maximum;
h->black = d->black;
}
h->raw.height = d->iheight = (h->height + h->shrink) >> h->shrink;
h->raw.width = d->iwidth = (h->width + h->shrink) >> h->shrink;
if (d->raw_image) {
h->raw.image = d->image = g_new0(dcraw_image_type, d->iheight * d->iwidth
+ d->meta_length);
d->meta_data = (char *)(d->image + d->iheight * d->iwidth);
d->crop_masked_pixels();
g_free(d->raw_image);
if (d->filters > 1 && d->filters <= 1000)
lin_interpolate_INDI(d->image, d->filters, d->width, d->height, d->colors, d, h);
}
if (!--d->data_error) d->lastStatus = DCRAW_ERROR;
if (d->zero_is_bad) d->remove_zeroes();
d->bad_pixels(NULL);
if (d->is_foveon) {
if (d->load_raw == &DCRaw::foveon_dp_load_raw) {
d->meta_data = 0;
d->sigma_true_ii_interpolate();
} else d->foveon_interpolate();
h->raw.width = h->width = d->width;
h->raw.height = h->height = d->height;
}
fclose(d->ifp);
h->ifp = NULL;
// TODO: Go over the following settings to see if they change during
// load_raw. If they change, document where. If not, move to dcraw_open().
h->rgbMax = d->maximum;
i = d->cblack[3];
FORC3 if ((unsigned)i > d->cblack[c]) i = d->cblack[c];
FORC4 d->cblack[c] -= i;
d->black += i;
i = d->cblack[6];
FORC(d->cblack[4] * d->cblack[5])
if (i > d->cblack[6 + c]) i = d->cblack[6 + c];
FORC(d->cblack[4] * d->cblack[5])
d->cblack[6 + c] -= i;
d->black += i;
h->black = d->black;
d->dcraw_message(DCRAW_VERBOSE, _("Black: %d, Maximum: %d\n"),
d->black, d->maximum);
dmin = DBL_MAX;
for (i = 0; i < h->colors; i++) if (dmin > d->pre_mul[i]) dmin = d->pre_mul[i];
for (i = 0; i < h->colors; i++) h->pre_mul[i] = d->pre_mul[i] / dmin;
if (h->colors == 3) h->pre_mul[3] = 0;
memcpy(h->rgb_cam, d->rgb_cam, sizeof d->rgb_cam);
double rgb_cam_transpose[4][3];
for (i = 0; i < 4; i++) for (j = 0; j < 3; j++)
rgb_cam_transpose[i][j] = d->rgb_cam[j][i];
d->pseudoinverse(rgb_cam_transpose, h->cam_rgb, d->colors);
h->message = d->messageBuffer;
return d->lastStatus;
}
int dcraw_load_thumb(dcraw_data *h, dcraw_image_data *thumb)
{
DCRaw *d = (DCRaw *)h->dcraw;
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
thumb->height = d->thumb_height;
thumb->width = d->thumb_width;
h->thumbOffset = d->thumb_offset;
h->thumbBufferLength = d->thumb_length;
if (d->thumb_offset == 0) {
dcraw_message(d, DCRAW_ERROR, _("%s has no thumbnail."),
d->ifname_display);
} else if (d->thumb_load_raw != NULL) {
dcraw_message(d, DCRAW_ERROR,
_("Unsupported thumb format (load_raw) for %s"),
d->ifname_display);
} else if (d->write_thumb == &DCRaw::jpeg_thumb) {
h->thumbType = jpeg_thumb_type;
} else if (d->write_thumb == &DCRaw::ppm_thumb) {
h->thumbType = ppm_thumb_type;
// Copied from dcraw's ppm_thumb()
h->thumbBufferLength = thumb->width * thumb->height * 3;
} else {
dcraw_message(d, DCRAW_ERROR,
_("Unsupported thumb format for %s"), d->ifname_display);
}
h->message = d->messageBuffer;
return d->lastStatus;
}
/* Grab a pixel from the raw data, doing dark frame removal on the fly.
*
* The most obvious algorithm for dark frame removal is to simply
* subtract the dark frame from the image (rounding negative values to
* zero). However, this leaves holes in the resulting image that need
* to be interpolated from the surrounding pixels.
*
* The processing works by subtracting the dark frame as usual for most
* pixels. For all pixels where the dark frame is brighter than a given
* threshold, the result is instead calculated as the average of the
* dark-adjusted values of the 4 surrounding pixels. By this method,
* only hot pixels (as determined by the threshold) are examined and
* recalculated.
*/
static int get_dark_pixel(const dcraw_data *h, const dcraw_data *dark,
int i, int cl)
{
return MAX(h->raw.image[i][cl] - dark->raw.image[i][cl], 0);
}
static int get_pixel(const dcraw_data *h, const dcraw_data *dark,
int i, int cl, int pixels)
{
int pixel = h->raw.image[i][cl];
if (dark != 0) {
int w = h->raw.width;
pixel = (dark->raw.image[i][cl] <= dark->thresholds[cl])
? MAX(pixel - dark->raw.image[i][cl], 0)
: (get_dark_pixel(h, dark, i + ((i >= 1) ? -1 : 1), cl) +
get_dark_pixel(h, dark, i + ((i < pixels - 1) ? 1 : -1), cl) +
get_dark_pixel(h, dark, i + ((i >= w) ? -w : w), cl) +
get_dark_pixel(h, dark, i + ((i < pixels - w) ? w : -w), cl))
/ 4;
}
return pixel;
}
/*
* fcol_INDI() optimizing wrapper.
* fcol_sequence() cooks up the filter color sequence for a row knowing that
* it doesn't have to store more than 16 values. The result can be indexed
* by the column using fcol_color() and that part must of course be inlined
* for maximum performance. The inner loop for image processing should
* always try to index the column and not the row in order to reduce the
* data cache footprint.
*/
static unsigned fcol_sequence(int filters, int row, int top_margin,
int left_margin, char xtrans[6][6])
{
unsigned sequence = 0;
int c;
for (c = 15; c >= 0; --c)
sequence = (sequence << 2) | fcol_INDI(filters, row, c, top_margin, left_margin, xtrans);
return sequence;
}
/*
* Note: smart compilers will inline anyway in most cases: the "inline"
* below is a comment reminding not to make it an external function.
*/
static inline int fcol_color(unsigned sequence, int col)
{
return (sequence >> ((col << 1) & 0x1f)) & 3;
}
static inline void shrink_accumulate_row(unsigned *sum, int size,
dcraw_image_type *base, int scale, int color)
{
int i, j;
unsigned v;
for (i = 0; i < size; ++i) {
v = 0;
for (j = 0; j < scale; ++j)
v += base[i * scale + j][color];
sum[i] += v;
}
}
static inline void shrink_row(dcraw_image_type *obase, int osize,
dcraw_image_type *ibase, int isize, int colors, int scale)
{
unsigned *sum;
dcraw_image_type *iptr;
int cl, i;
sum = (unsigned*) g_malloc(osize * sizeof(unsigned));
for (cl = 0; cl < colors; ++cl) {
memset(sum, 0, osize * sizeof(unsigned));
iptr = ibase;
for (i = 0; i < scale; ++i) {
shrink_accumulate_row(sum, osize, iptr, scale, cl);
iptr += isize;
}
for (i = 0; i < osize; ++i)
obase[i][cl] = sum[i] / (scale * scale);
}
g_free(sum);
}
static inline void shrink_pixel(dcraw_image_type pixp, int row, int col,
dcraw_data *hh, unsigned *fseq, int scale)
{
unsigned sum[4], count[4];
int ri, ci, cl;
dcraw_image_type *ibase;
memset(sum, 0, 4 * sizeof(unsigned));
memset(count, 0, 4 * sizeof(unsigned));
for (ri = 0; ri < scale; ++ri) {
ibase = hh->raw.image + ((row * scale + ri) / 2) * hh->raw.width;
for (ci = 0; ci < scale; ++ci) {
cl = fcol_color(fseq[ri], col * scale + ci);
sum[cl] += ibase[(col * scale + ci) / 2][cl];
++count[cl];
}
}
for (cl = 0; cl < hh->raw.colors; ++cl)
pixp[cl] = sum[cl] / count[cl];
}
int dcraw_finalize_shrink(dcraw_image_data *f, dcraw_data *hh,
int scale)
{
DCRaw *d = (DCRaw *)hh->dcraw;
int h, w, fujiWidth, r, c, ri, recombine, f4;
dcraw_image_type *ibase, *obase;
unsigned *fseq;
unsigned short *pixp;
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
recombine = (hh->colors == 3 && hh->raw.colors == 4);
/* the last row/column will be skipped if input is incomplete */
f->height = h = hh->height / scale;
f->width = w = hh->width / scale;
f->colors = hh->colors;
/* hh->raw.image is shrunk in half if there are filters.
* If scale is odd we need to "unshrink" it using the info in
* hh->fourColorFilters before scaling it. */
if ((hh->filters == 1 || hh->filters > 1000) && scale % 2 == 1) {
fujiWidth = hh->fuji_width / scale;
f->image = (dcraw_image_type *)
g_realloc(f->image, h * w * sizeof(dcraw_image_type));
f4 = hh->fourColorFilters;
#ifdef _OPENMP
#pragma omp parallel for schedule(static) private(r,ri,fseq,c,pixp)
#endif
for (r = 0; r < h; ++r) {
fseq = (unsigned*) g_malloc(scale * sizeof(unsigned));
for (ri = 0; ri < scale; ++ri)
fseq[ri] = fcol_sequence(f4, r + ri, hh->top_margin, hh->left_margin, hh->xtrans);
for (c = 0; c < w; ++c) {
pixp = f->image[r * w + c];
shrink_pixel(pixp, r, c, hh, fseq, scale);
if (recombine)
pixp[1] = (pixp[1] + pixp[3]) / 2;
}
g_free(fseq);
}
} else {
if (hh->filters == 1 || hh->filters > 1000) scale /= 2;
fujiWidth = ((hh->fuji_width + hh->shrink) >> hh->shrink) / scale;
f->image = (dcraw_image_type *)g_realloc(
f->image, h * w * sizeof(dcraw_image_type));
#ifdef _OPENMP
#pragma omp parallel for schedule(static) private(r,ibase,obase,c)
#endif
for (r = 0; r < h; ++r) {
ibase = hh->raw.image + r * hh->raw.width * scale;
obase = f->image + r * w;
if (scale == 1)
memcpy(obase, ibase, sizeof(dcraw_image_type) * w);
else
shrink_row(obase, w, ibase, hh->raw.width, hh->raw.colors, scale);
if (recombine) {
for (c = 0; c < w; c++)
obase[c][1] = (obase[c][1] + obase[c][3]) / 2;
}
}
}
fuji_rotate_INDI(&f->image, &f->height, &f->width, &fujiWidth,
f->colors, hh->fuji_step, d);
hh->message = d->messageBuffer;
return d->lastStatus;
}
int dcraw_image_resize(dcraw_image_data *image, int size)
{
int h, w, wid, r, ri, rii, c, ci, cii, cl, norm;
guint64 riw, riiw, ciw, ciiw;
guint64(*iBuf)[4];
int mul = size, div = MAX(image->height, image->width);
if (mul > div) return DCRAW_ERROR;
if (mul == div) return DCRAW_SUCCESS;
/* I'm skiping the last row/column if it is not a full row/column */
h = image->height * mul / div;
w = image->width * mul / div;
wid = image->width;
iBuf = (guint64(*)[4])g_new0(guint64, h * w * 4);
norm = div * div;
for (r = 0; r < image->height; r++) {
/* r should be divided between ri and rii */
ri = r * mul / div;
rii = (r + 1) * mul / div;
/* with weights riw and riiw (riw+riiw==mul) */
riw = rii * div - r * mul;
riiw = (r + 1) * mul - rii * div;
if (rii >= h) {
rii = h - 1;
riiw = 0;
}
if (ri >= h) {
ri = h - 1;
riw = 0;
}
for (c = 0; c < image->width; c++) {
ci = c * mul / div;
cii = (c + 1) * mul / div;
ciw = cii * div - c * mul;
ciiw = (c + 1) * mul - cii * div;
if (cii >= w) {
cii = w - 1;
ciiw = 0;
}
if (ci >= w) {
ci = w - 1;
ciw = 0;
}
for (cl = 0; cl < image->colors; cl++) {
iBuf[ri * w + ci ][cl] += image->image[r * wid + c][cl] * riw * ciw ;
iBuf[ri * w + cii][cl] += image->image[r * wid + c][cl] * riw * ciiw;
iBuf[rii * w + ci ][cl] += image->image[r * wid + c][cl] * riiw * ciw ;
iBuf[rii * w + cii][cl] += image->image[r * wid + c][cl] * riiw * ciiw;
}
}
}
for (c = 0; c < h * w; c++) for (cl = 0; cl < image->colors; cl++)
image->image[c][cl] = iBuf[c][cl] / norm;
g_free(iBuf);
image->height = h;
image->width = w;
return DCRAW_SUCCESS;
}
/* Adapted from dcraw.c stretch() - NKBJ */
int dcraw_image_stretch(dcraw_image_data *image, double pixel_aspect)
{
int newdim, row, col, c, colors = image->colors;
double rc, frac;
ushort *pix0, *pix1;
dcraw_image_type *iBuf;
if (pixel_aspect == 1) return DCRAW_SUCCESS;
if (pixel_aspect < 1) {
newdim = (int)(image->height / pixel_aspect + 0.5);
iBuf = g_new(dcraw_image_type, image->width * newdim);
for (rc = row = 0; row < newdim; row++, rc += pixel_aspect) {
frac = rc - (c = (int)rc);
pix0 = pix1 = image->image[c * image->width];
if (c + 1 < image->height) pix1 += image->width * 4;
for (col = 0; col < image->width; col++, pix0 += 4, pix1 += 4)
FORCC iBuf[row * image->width + col][c] =
(guint16)(pix0[c] * (1 - frac) + pix1[c] * frac + 0.5);
}
image->height = newdim;
} else {
newdim = (int)(image->width * pixel_aspect + 0.5);
iBuf = g_new(dcraw_image_type, image->height * newdim);
for (rc = col = 0; col < newdim; col++, rc += 1 / pixel_aspect) {
frac = rc - (c = (int)rc);
pix0 = pix1 = image->image[c];
if (c + 1 < image->width) pix1 += 4;
for (row = 0; row < image->height;
row++, pix0 += image->width * 4, pix1 += image->width * 4)
FORCC iBuf[row * newdim + col][c] =
(guint16)(pix0[c] * (1 - frac) + pix1[c] * frac + 0.5);
}
image->width = newdim;
}
g_free(image->image);
image->image = iBuf;
return DCRAW_SUCCESS;
}
int dcraw_flip_image(dcraw_image_data *image, int flip)
{
if (flip)
flip_image_INDI(image->image, &image->height, &image->width, flip);
return DCRAW_SUCCESS;
}
int dcraw_set_color_scale(dcraw_data *h, int useCameraWB)
{
DCRaw *d = (DCRaw *)h->dcraw;
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
memcpy(h->post_mul, h->pre_mul, sizeof h->post_mul);
if (d->is_foveon) {
// foveon_interpolate() applies the camera-wb already.
for (int c = 0; c < 4; c++)
h->post_mul[c] = 1.0;
} else {
scale_colors_INDI(h->rgbMax, h->black, useCameraWB, h->cam_mul,
h->colors, h->post_mul, h->filters, d->white,
d->ifname_display, d);
}
h->message = d->messageBuffer;
return d->lastStatus;
}
void dcraw_wavelet_denoise(dcraw_data *h, float threshold)
{
if (threshold)
wavelet_denoise_INDI(h->raw.image, h->black, h->raw.height,
h->raw.width, h->height, h->width, h->colors, h->shrink,
h->post_mul, threshold, h->fourColorFilters);
}
void dcraw_wavelet_denoise_shrinked(dcraw_image_data *f, float threshold)
{
if (threshold)
wavelet_denoise_INDI(f->image, 0, f->height, f->width, 0, 0, 4, 0,
NULL, threshold, 0);
}
/*
* Do black level adjustment, dark frame subtraction and white balance
* (plus normalization to use the full 16 bit pixel value range) in one
* pass.
*
* TODO: recode and optimize dark frame path
*/
void dcraw_finalize_raw(dcraw_data *h, dcraw_data *dark, int rgbWB[4])
{
const int pixels = h->raw.width * h->raw.height;
const unsigned black = dark ? MAX(h->black - dark->black, 0) : h->black;
if (h->colors == 3)
rgbWB[3] = rgbWB[1];
if (dark) {
#ifdef _OPENMP
#pragma omp parallel for schedule(static) \
shared(h,dark,rgbWB)
#endif
for (int i = 0; i < pixels; i++) {
int cc;
for (cc = 0; cc < 4; cc++) {
gint32 p = (gint64)(get_pixel(h, dark, i, cc, pixels) - black) *
rgbWB[cc] / 0x10000;
h->raw.image[i][cc] = MIN(MAX(p, 0), 0xFFFF);
}
}
} else {
#ifdef _OPENMP
#pragma omp parallel for schedule(static) \
shared(h,dark,rgbWB)
#endif
for (int i = 0; i < pixels; i++) {
int cc;
for (cc = 0; cc < 4; cc++)
h->raw.image[i][cc] = MIN(MAX(
((gint64)h->raw.image[i][cc] - black) *
rgbWB[cc] / 0x10000, 0), 0xFFFF);
}
}
}
int dcraw_finalize_interpolate(dcraw_image_data *f, dcraw_data *h,
int interpolation, int smoothing)
{
DCRaw *d = (DCRaw *)h->dcraw;
int fujiWidth, i, r, c, cl;
unsigned ff, f4;
g_free(d->messageBuffer);
d->messageBuffer = NULL;
d->lastStatus = DCRAW_SUCCESS;
f->width = h->width;
f->height = h->height;
fujiWidth = h->fuji_width;
f->colors = h->colors;
f->image = (dcraw_image_type *)
g_realloc(f->image, f->height * f->width * sizeof(dcraw_image_type));
memset(f->image, 0, f->height * f->width * sizeof(dcraw_image_type));
if (h->filters == 0)
return DCRAW_ERROR;
cl = h->colors;
if (interpolation == dcraw_four_color_interpolation || h->colors == 4) {
ff = h->fourColorFilters;
cl = 4;
interpolation = dcraw_vng_interpolation;
} else {
ff = h->filters &= ~((h->filters & 0x55555555) << 1);
}
/* It might be better to report an error here: */
/* (dcraw also forbids AHD for Fuji rotated images) */
if (h->filters == 9 && interpolation != dcraw_bilinear_interpolation)
interpolation = dcraw_xtrans_interpolation;
if (interpolation == dcraw_ahd_interpolation && h->colors > 3)
interpolation = dcraw_vng_interpolation;
if (interpolation == dcraw_ppg_interpolation && h->colors > 3)
interpolation = dcraw_vng_interpolation;
f4 = h->fourColorFilters;
if (h->filters == 1 || h->filters > 1000) {
for (r = 0; r < h->height; r++)
for (c = 0; c < h->width; c++) {
int cc = fcol_INDI(f4, r, c, h->top_margin, h->left_margin, h->xtrans);
f->image[r * f->width + c][fcol_INDI(ff, r, c, h->top_margin, h->left_margin, h->xtrans)] =
h->raw.image[r / 2 * h->raw.width + c / 2][cc];
}
} else
memcpy(f->image, h->raw.image, h->height * h->width * sizeof(dcraw_image_type));
int smoothPasses = 1;
if (interpolation == dcraw_bilinear_interpolation && (h->filters == 1 || h->filters > 1000))
lin_interpolate_INDI(f->image, ff, f->width, f->height, cl, d, h);
#ifdef ENABLE_INTERP_NONE
else if (interpolation == dcraw_none_interpolation)
smoothing = 0;
#endif
else if (interpolation == dcraw_vng_interpolation || h->colors > 3)
vng_interpolate_INDI(f->image, ff, f->width, f->height, cl, 0xFFFF, d, h);
else if (interpolation == dcraw_ppg_interpolation && h->filters > 1000)
ppg_interpolate_INDI(f->image, ff, f->width, f->height, cl, d, h);
else if (interpolation == dcraw_xtrans_interpolation) {
xtrans_interpolate_INDI(f->image, h->filters, f->width, f->height,
h->colors, h->rgb_cam, d, h, 3);
smoothPasses = 3;
} else if (interpolation == dcraw_ahd_interpolation) {
ahd_interpolate_INDI(f->image, ff, f->width, f->height, cl,
h->rgb_cam, d, h);
smoothPasses = 3;
}
if (smoothing)
color_smooth(f->image, f->width, f->height, smoothPasses);