only allow gray pngs or pngs with palette

diff --git a/lib/gdi/epng.cpp b/lib/gdi/epng.cpp
index 6b08c2d8823186c30f34a2130f1d7a831122e864..0f8ea56843a0c7cf6f774ab09b6aeedb67cc4c49 100644 (file)
--- a/lib/gdi/epng.cpp
+++ b/lib/gdi/epng.cpp
@@ -70,9 +70,7 @@ int loadPNG(ePtr<gPixmap> &result, const char *filename)
        
        png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, 0, 0, 0);
        
-//     eDebug("%s: %dx%dx%d png, %d", filename, (int)width, (int)height, (int)bit_depth, color_type);
-       
-       if (color_type != 6)
+       if (color_type == PNG_COLOR_TYPE_GRAY || color_type & PNG_COLOR_MASK_PALETTE)
        {
                result=new gPixmap(eSize(width, height), bit_depth);
                gSurface *surface = result->surface;
@@ -117,8 +115,10 @@ int loadPNG(ePtr<gPixmap> &result, const char *filename)
                }
                surface->clut.start=0;
                png_read_end(png_ptr, end_info);
-       } else
+       } else {
                result=0;
+               eDebug("%s: %dx%dx%d png, %d", filename, (int)width, (int)height, (int)bit_depth, color_type);
+       }
 
        png_destroy_read_struct(&png_ptr, &info_ptr,&end_info);
        fclose(fp);