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LibGfx/TIFF: Add AdobeDeflate compression support
This new compression is quite popular and uses a basic Zlib compression to compress strips. Note that this is not part of the original TIFF specification but in the Technical Notes from 2002: https://web.archive.org/web/20160305055905/http://partners.adobe.com/public/developer/en/tiff/TIFFphotoshop.pdf The test case was generated with GIMP.
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@ -462,6 +462,18 @@ TEST_CASE(test_tiff_lzw)
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EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
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}
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TEST_CASE(test_tiff_defalte)
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{
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auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/deflate.tiff"sv)));
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EXPECT(Gfx::TIFFImageDecoderPlugin::sniff(file->bytes()));
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auto plugin_decoder = TRY_OR_FAIL(Gfx::TIFFImageDecoderPlugin::create(file->bytes()));
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auto frame = TRY_OR_FAIL(expect_single_frame_of_size(*plugin_decoder, { 400, 300 }));
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EXPECT_EQ(frame.image->get_pixel(0, 0), Gfx::Color::NamedColor::White);
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EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
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}
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TEST_CASE(test_tiff_packed_bits)
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{
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auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/packed_bits.tiff"sv)));
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