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WebP/Lossy: Add some basic tests

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Nico Weber 2023-05-29 13:01:45 -04:00 committed by Andreas Kling
parent f8e4a0a268
commit 358d94b57a
Notes: sideshowbarker 2024-07-17 05:06:13 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/358d94b57a
Pull-request: https://github.com/SerenityOS/serenity/pull/19132
1 changed files with 25 additions and 2 deletions
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27
Tests/LibGfx/TestImageDecoder.cpp
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@ -311,7 +311,13 @@ TEST_CASE(test_webp_simple_lossy)
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(240, 240));
// FIXME: test plugin_decoder->frame(0) once webp lossy decoding is implemented.
auto frame = MUST(plugin_decoder->frame(0));
EXPECT_EQ(frame.image->size(), Gfx::IntSize(240, 240));
// While VP8 YUV contents are defined bit-exact, the YUV->RGB conversion isn't.
// So pixels changing by 1 or so below is fine if you change code.
EXPECT_EQ(frame.image->get_pixel(120, 232), Gfx::Color(0xf2, 0xef, 0xf0, 255));
EXPECT_EQ(frame.image->get_pixel(198, 202), Gfx::Color(0x7b, 0xaa, 0xd5, 255));
}
TEST_CASE(test_webp_simple_lossless)
@ -353,7 +359,24 @@ TEST_CASE(test_webp_extended_lossy)
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(417, 223));
// FIXME: test plugin_decoder->frame(0) once webp lossy decoding is implemented.
auto frame = MUST(plugin_decoder->frame(0));
EXPECT_EQ(frame.image->size(), Gfx::IntSize(417, 223));
// While VP8 YUV contents are defined bit-exact, the YUV->RGB conversion isn't.
// So pixels changing by 1 or so below is fine if you change code.
EXPECT_EQ(frame.image->get_pixel(89, 72), Gfx::Color(255, 1, 0, 255));
EXPECT_EQ(frame.image->get_pixel(174, 69), Gfx::Color(0, 255, 0, 255));
EXPECT_EQ(frame.image->get_pixel(245, 84), Gfx::Color(0, 0, 255, 255));
EXPECT_EQ(frame.image->get_pixel(352, 125), Gfx::Color(0, 0, 0, 128));
EXPECT_EQ(frame.image->get_pixel(355, 106), Gfx::Color(0, 0, 0, 0));
// Check same basic pixels as in test_webp_extended_lossless too.
// (The top-left pixel in the lossy version is fully transparent white, compared to fully transparent black in the lossless version).
EXPECT_EQ(frame.image->get_pixel(0, 0), Gfx::Color(255, 255, 255, 0));
EXPECT_EQ(frame.image->get_pixel(43, 75), Gfx::Color(255, 0, 2, 255));
EXPECT_EQ(frame.image->get_pixel(141, 75), Gfx::Color(0, 255, 3, 255));
EXPECT_EQ(frame.image->get_pixel(235, 75), Gfx::Color(0, 0, 255, 255));
EXPECT_EQ(frame.image->get_pixel(341, 75), Gfx::Color(0, 0, 0, 128));
}
TEST_CASE(test_webp_extended_lossless)