diff options
| -rw-r--r-- | src/png.c | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -85,7 +85,16 @@ int png_read(struct image *img){ png_set_strip_16(p->png_ptr); if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) png_set_gray_to_rgb(p->png_ptr); - png_set_strip_alpha(p->png_ptr); + //png_set_strip_alpha(p->png_ptr); + + png_color_16 my_background = {.red = 0xff, .green = 0xff, .blue = 0xff}; + png_color_16p image_background; + + if(png_get_bKGD(p->png_ptr, p->info_ptr, &image_background)) + png_set_background(p->png_ptr, image_background, PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); + else + png_set_background(p->png_ptr, &my_background, PNG_BACKGROUND_GAMMA_SCREEN, 2, 1.0); + if(png_get_interlace_type(p->png_ptr, p->info_ptr) == PNG_INTERLACE_ADAM7) p->numpasses = png_set_interlace_handling(p->png_ptr); else |