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LibGfx/TIFF: Add support for LZW compression

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This commit is contained in:
Lucas CHOLLET 2023-11-04 17:22:54 -04:00 • committed by Andreas Kling
parent 4f5a0227e2
commit 272be6b20a
3 changed files with 56 additions and 1 deletions
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12
Tests/LibGfx/TestImageDecoder.cpp
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@ -384,6 +384,18 @@ TEST_CASE(test_tiff_uncompressed)
EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
}
TEST_CASE(test_tiff_lzw)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/lzw.tiff"sv)));
EXPECT(Gfx::TIFFImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::TIFFImageDecoderPlugin::create(file->bytes()));
auto frame = 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_tiff_packed_bits)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/packed_bits.tiff"sv)));