maybe if i use a wrapper

src/fntsys.c

@@ -285,7 +285,8 @@ void fntInit()
     for (; i < FNT_MAX_COUNT; ++i)
         fntInitSlot(&fonts[i]);
 
-    fntLoadDefault(NULL);
+    fntLoadDefaultInternal(NULL, FNTSYS_DEFAULT_SIZE, FNT_DEFAULT);
+    fntLoadDefaultInternal(NULL, 12, 1);
 }
 
 int fntLoadFile(char *path, int fontSize)
@@ -304,44 +305,36 @@ int fntLoadFile(char *path, int fontSize)
     return FNT_ERROR;
 }
 
-int fntLoadDefault(char *path)
+static int fntLoadDefaultInternal(char *path, int fontSize, int slot)
 {
-    font_t newFont, oldFont, newFont2, oldFont2;
-
-    WaitSema(gFontSemaId);
-
-    if (fntLoadSlot(&newFont, path, FNTSYS_DEFAULT_SIZE) != FNT_ERROR) {
-        // copy over the new font definition
-        // we have to lock this phase, as the old font may still be used
-        // Note: No check for concurrency is done here, which is kinda funky!
-        memcpy(&oldFont, &fonts[FNT_DEFAULT], sizeof(font_t));
-        memcpy(&fonts[FNT_DEFAULT], &newFont, sizeof(font_t));
+    font_t newFont, oldFont;
 
-        // delete the old font
-        fntDeleteSlot(&oldFont);
-        LOG("Default font loaded with size: %d\n", fonts[FNT_DEFAULT].fontSize);
+    if (slot < 0 || slot >= FNT_MAX_COUNT) {
+        LOG("FNTSYS Invalid font slot: %d\n", slot);
+        return -1;
     }
 
-    //memset(&newFont, 0, sizeof(font_t));
-    //memset(&oldFont, 0, sizeof(font_t));
-
-    // Load the font into slot1 as well to have a font size of 12
-    if (fntLoadSlot(&newFont2, path, FNTSYS_DEFAULT_SIZE - 5) != FNT_ERROR) {
-        memcpy(&oldFont2, &fonts[1], sizeof(font_t));
-        memcpy(&fonts[1], &newFont2, sizeof(font_t));
+    if (fntLoadSlot(&newFont, path, fontSize) != FNT_ERROR) {
+        // Lock access and replace the font in the specified slot
+        WaitSema(gFontSemaId);
+        memcpy(&oldFont, &fonts[slot], sizeof(font_t));
+        memcpy(&fonts[slot], &newFont, sizeof(font_t));
 
-        fntDeleteSlot(&oldFont2);
-        LOG("Second font loaded with size: %d\n", fonts[1].fontSize);
+        // Delete the old font
+        fntDeleteSlot(&oldFont);
         SignalSema(gFontSemaId);
+
         return 0;
     }
 
-    SignalSema(gFontSemaId);
-
-    LOG("Failed to load second font.\n");
     return -1;
 }
 
+int fntLoadDefault(char *path)
+{
+    return fntLoadDefaultInternal(path, FNTSYS_DEFAULT_SIZE, FNT_DEFAULT);
+}
+
 void fntEnd()
 {
     LOG("FNTSYS End\n");