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--- png.c.old 2011-09-14 16:25:54.415338149 +0200
+++ png.c 2011-09-14 17:41:02.190803110 +0200
@@ -38,6 +38,8 @@
png_color_16 *transv;
SDL_RWops *src = NULL;
Uint32 size;
+ int num_palette;
+ png_colorp png_palette;
memcpy(&size, data, sizeof(Uint32));
if (memcounter)
@@ -74,7 +76,7 @@
* the normal method of doing things with libpng). REQUIRED unless you
* set up your own error handlers in png_create_read_struct() earlier.
*/
- if (setjmp(png_ptr->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png_ptr))) {
SDL_SetError("Error reading the PNG file.");
goto done;
}
@@ -142,9 +144,9 @@
Rmask = 0x000000FF;
Gmask = 0x0000FF00;
Bmask = 0x00FF0000;
- Amask = (info_ptr->channels == 4) ? 0xFF000000 : 0;
+ Amask = (png_get_channels(png_ptr, info_ptr) == 4) ? 0xFF000000 : 0;
} else {
- int s = (info_ptr->channels == 4) ? 0 : 8;
+ int s = (png_get_channels(png_ptr, info_ptr) == 4) ? 0 : 8;
Rmask = 0xFF000000 >> s;
Gmask = 0x00FF0000 >> s;
Bmask = 0x0000FF00 >> s;
@@ -152,7 +154,7 @@
}
}
surface = SDL_AllocSurface(SDL_SWSURFACE, width, height,
- bit_depth * info_ptr->channels, Rmask, Gmask,
+ bit_depth * png_get_channels(png_ptr, info_ptr), Rmask, Gmask,
Bmask, Amask);
if (surface == NULL) {
SDL_SetError("Out of memory");
@@ -197,12 +199,15 @@
palette->colors[i].g = i;
palette->colors[i].b = i;
}
- } else if (info_ptr->num_palette > 0) {
- palette->ncolors = info_ptr->num_palette;
- for (i = 0; i < info_ptr->num_palette; ++i) {
- palette->colors[i].b = info_ptr->palette[i].blue;
- palette->colors[i].g = info_ptr->palette[i].green;
- palette->colors[i].r = info_ptr->palette[i].red;
+ } else {
+ png_get_PLTE(png_ptr, info_ptr, &png_palette, &num_palette);
+ if (num_palette > 0) {
+ palette->ncolors = num_palette;
+ for (i = 0; i < num_palette; ++i) {
+ palette->colors[i].b = png_palette[i].blue;
+ palette->colors[i].g = png_palette[i].green;
+ palette->colors[i].r = png_palette[i].red;
+ }
}
}
}
|
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