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path: root/community/xnc/libpng15.patch
blob: 53b941b81f09335483e302913ae36c92183a41f8 (plain)
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diff -wbBur xnc-5.0.4/src/lib/image2/sdl_image/IMG_png.c xnc-5.0.4.my/src/lib/image2/sdl_image/IMG_png.c
--- xnc-5.0.4/src/lib/image2/sdl_image/IMG_png.c	2002-08-05 14:43:09.000000000 +0400
+++ xnc-5.0.4.my/src/lib/image2/sdl_image/IMG_png.c	2012-01-19 13:46:48.000000000 +0400
@@ -138,7 +138,7 @@
 	 * 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)) ) {
 		IMG_SetError("Error reading the PNG file.");
 		goto done;
 	}
@@ -207,9 +207,9 @@
 			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;
@@ -217,7 +217,7 @@
 		}
 	}
 	surface = SDL_AllocSurface(SDL_SWSURFACE, width, height,
-			bit_depth*info_ptr->channels, Rmask,Gmask,Bmask,Amask);
+			bit_depth*png_get_channels(png_ptr, info_ptr), Rmask,Gmask,Bmask,Amask);
 	if ( surface == NULL ) {
 		IMG_SetError("Out of memory");
 		goto done;
@@ -252,6 +252,10 @@
 	/* read rest of file, get additional chunks in info_ptr - REQUIRED */
 	png_read_end(png_ptr, info_ptr);
 
+	png_colorp plte;
+	int num_palette;
+	png_get_PLTE(png_ptr, info_ptr, &plte, &num_palette);
+
 	/* Load the palette, if any */
 	palette = surface->format->palette;
 	if ( palette ) {
@@ -262,12 +266,12 @@
 		    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 if (num_palette > 0 ) {
+		palette->ncolors = num_palette;
+		for( i=0; i<num_palette; ++i ) {
+		    palette->colors[i].b = plte[i].blue;
+		    palette->colors[i].g = plte[i].green;
+		    palette->colors[i].r = plte[i].red;
 		}
 	    }
 	}