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Tests: Add another test for webp lossless decoding

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Nico Weber 2023-04-06 13:33:43 -04:00 • committed by Linus Groh
parent d354c1b007
commit 61b540e737
1 changed files with 12 additions and 0 deletions
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12
Tests/LibGfx/TestImageDecoder.cpp
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@ -302,6 +302,18 @@ TEST_CASE(test_webp_simple_lossless)
EXPECT(!plugin_decoder->loop_count());
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(386, 395));
// Ironically, simple-vp8l.webp is a much more complex file than extended-lossless.webp tested below.
// extended-lossless.webp tests the decoding basics.
// This here tests the predictor, color, and subtract green transforms,
// as well as meta prefix images, one-element canonical code handling,
// and handling of canonical codes with more than 288 elements.
// This image uses all 13 predictor modes of the predictor transform.
auto frame = MUST(plugin_decoder->frame(0));
EXPECT_EQ(frame.image->size(), Gfx::IntSize(386, 395));
// This pixel tests all predictor modes except 5, 7, 8, 9, and 13.
EXPECT_EQ(frame.image->get_pixel(289, 332), Gfx::Color(0xf2, 0xee, 0xd3, 255));
}
TEST_CASE(test_webp_extended_lossy)