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LibGfx/TIFF: Add support for bit-depth up to 32 bits per sample

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This makes us support every "minisblack" and "rgb-contig" images from
the depth folder of libtiff's test suite:
https://libtiff.gitlab.io/libtiff/images.html
This commit is contained in:
Lucas CHOLLET 2023-12-08 23:02:22 -05:00 • committed by Andreas Kling
parent 25993cd93b
commit 234d084876
3 changed files with 44 additions and 10 deletions
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12
Tests/LibGfx/TestImageDecoder.cpp
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@ -431,6 +431,18 @@ TEST_CASE(test_tiff_grayscale)
EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color(130, 130, 130));
}
TEST_CASE(test_tiff_16_bits)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/16_bits.tiff"sv)));
EXPECT(Gfx::TIFFImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = TRY_OR_FAIL(Gfx::TIFFImageDecoderPlugin::create(file->bytes()));
auto frame = TRY_OR_FAIL(expect_single_frame_of_size(*plugin_decoder, { 400, 300 }));
EXPECT_EQ(frame.image->get_pixel(0, 0), Gfx::Color::NamedColor::White);
EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
}
TEST_CASE(test_webp_simple_lossy)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("webp/simple-vp8.webp"sv)));