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TestImageWriter: Add a test for writing a webp animation

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Nico Weber 2024-05-08 18:22:33 -04:00 committed by Tim Flynn
parent f506818052
commit 4b1c1d1cae
Notes: sideshowbarker 2024-07-17 00:59:43 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/4b1c1d1cae
Pull-request: https://github.com/SerenityOS/serenity/pull/24269
Reviewed-by: https://github.com/LucasChollet ✅
Reviewed-by: https://github.com/trflynn89
1 changed files with 31 additions and 0 deletions
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31
Tests/LibGfx/TestImageWriter.cpp
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@ -145,3 +145,34 @@ TEST_CASE(test_webp_icc)
auto reencoded_icc_data = TRY_OR_FAIL(Gfx::ICC::encode(decoded_rgba_profile));
EXPECT_EQ(sRGB_icc_data, reencoded_icc_data);
}
TEST_CASE(test_webp_animation)
{
auto rgb_bitmap = TRY_OR_FAIL(create_test_rgb_bitmap());
auto rgba_bitmap = TRY_OR_FAIL(create_test_rgba_bitmap());
// 20 kiB is enough for two 47x33 frames.
auto stream_buffer = TRY_OR_FAIL(ByteBuffer::create_uninitialized(20 * 1024));
FixedMemoryStream stream { Bytes { stream_buffer } };
auto animation_writer = TRY_OR_FAIL(Gfx::WebPWriter::start_encoding_animation(stream, rgb_bitmap->size()));
TRY_OR_FAIL(animation_writer->add_frame(*rgb_bitmap, 100));
TRY_OR_FAIL(animation_writer->add_frame(*rgba_bitmap, 200));
auto encoded_animation = ReadonlyBytes { stream_buffer.data(), stream.offset() };
auto decoded_animation_plugin = TRY_OR_FAIL(Gfx::WebPImageDecoderPlugin::create(encoded_animation));
EXPECT(decoded_animation_plugin->is_animated());
EXPECT_EQ(decoded_animation_plugin->frame_count(), 2u);
EXPECT_EQ(decoded_animation_plugin->loop_count(), 0u);
EXPECT_EQ(decoded_animation_plugin->size(), rgb_bitmap->size());
auto frame0 = TRY_OR_FAIL(decoded_animation_plugin->frame(0));
EXPECT_EQ(frame0.duration, 100);
expect_bitmaps_equal(*frame0.image, *rgb_bitmap);
auto frame1 = TRY_OR_FAIL(decoded_animation_plugin->frame(1));
EXPECT_EQ(frame1.duration, 200);
expect_bitmaps_equal(*frame1.image, *rgba_bitmap);
}