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Tests: Add a test that triggers the webp color indexing saving path

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Nico Weber 2024-05-29 18:24:41 -04:00 • committed by Jelle Raaijmakers
commit 4a327d98a4
Notes: sideshowbarker 2024-07-17 03:03:15 +09:00
1 changed files with 21 additions and 0 deletions
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21
Tests/LibGfx/TestImageWriter.cpp
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@ -186,6 +186,27 @@ TEST_CASE(test_webp)
TRY_OR_FAIL((test_roundtrip<Gfx::WebPWriter, Gfx::WebPImageDecoderPlugin>(TRY_OR_FAIL(create_test_rgba_bitmap()))));
}
TEST_CASE(test_webp_color_indexing_transform)
{
Array<Color, 256> colors;
for (size_t i = 0; i < colors.size(); ++i) {
colors[i].set_red(i);
colors[i].set_green(255 - i);
colors[i].set_blue(128);
colors[i].set_alpha(255 - i / 16);
}
for (int bits_per_pixel : { 1, 2, 4, 8 }) {
int number_of_colors = 1 << bits_per_pixel;
auto bitmap = TRY_OR_FAIL(Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, { 47, 33 }));
for (int y = 0; y < bitmap->height(); ++y)
for (int x = 0; x < bitmap->width(); ++x)
bitmap->set_pixel(x, y, colors[(x * bitmap->width() + y) % number_of_colors]);
TRY_OR_FAIL((test_roundtrip<Gfx::WebPWriter, Gfx::WebPImageDecoderPlugin>(bitmap)));
}
}
TEST_CASE(test_webp_icc)
{
auto sRGB_icc_profile = MUST(Gfx::ICC::sRGB());