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Tests: Check that color indexing reduces file size

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Nico Weber 2024-05-31 13:33:39 -04:00 committed by Jelle Raaijmakers
parent 8a21992030
commit d8103247d9
1 changed files with 10 additions and 1 deletions
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11
Tests/LibGfx/TestImageWriter.cpp
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@ -203,7 +203,16 @@ TEST_CASE(test_webp_color_indexing_transform)
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)));
auto encoded_data = TRY_OR_FAIL(encode_bitmap<Gfx::WebPWriter>(bitmap));
auto decoded_bitmap = TRY_OR_FAIL(expect_single_frame_of_size(*TRY_OR_FAIL(Gfx::WebPImageDecoderPlugin::create(encoded_data)), bitmap->size()));
expect_bitmaps_equal(*decoded_bitmap, *bitmap);
Gfx::WebPEncoderOptions options;
options.vp8l_options.allowed_transforms = 0;
auto encoded_data_without_color_indexing = TRY_OR_FAIL(encode_bitmap<Gfx::WebPWriter>(bitmap, options));
EXPECT(encoded_data.size() < encoded_data_without_color_indexing.size());
auto decoded_bitmap_without_color_indexing = TRY_OR_FAIL(expect_single_frame_of_size(*TRY_OR_FAIL(Gfx::WebPImageDecoderPlugin::create(encoded_data)), bitmap->size()));
expect_bitmaps_equal(*decoded_bitmap_without_color_indexing, *decoded_bitmap);
}
}