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Fix loading paletted PNG without alpha channel

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This commit is contained in:
Nikita Lisitsa 2023-11-02 13:03:22 +03:00
parent 721c88fbee
commit 340a04d17c
1 changed files with 2 additions and 2 deletions
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4
libs/gfx/source/png.cpp
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@ -61,13 +61,13 @@ namespace psemek::gfx
if (monochrome && color_type != PNG_COLOR_TYPE_GRAY) if (monochrome && color_type != PNG_COLOR_TYPE_GRAY)
throw util::exception("Invalid color type for monochrome PNG"); throw util::exception("Invalid color type for monochrome PNG");
if (color_type == PNG_COLOR_TYPE_PALETTE) if (color_type & PNG_COLOR_MASK_PALETTE)
png_set_palette_to_rgb(png); png_set_palette_to_rgb(png);
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
png_set_expand_gray_1_2_4_to_8(png); png_set_expand_gray_1_2_4_to_8(png);
if (color_type == PNG_COLOR_TYPE_RGB) if (!(color_type & PNG_COLOR_MASK_ALPHA))
png_set_add_alpha(png, 0xff, PNG_FILLER_AFTER); png_set_add_alpha(png, 0xff, PNG_FILLER_AFTER);
png_read_update_info(png, info); png_read_update_info(png, info);