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LibGfx/JPEG: Allow decoding more subsampling factors

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We now allow all subsampling factors where the subsampling factors
of follow-on components evenly decode the ones of the first component.

In practice, this allows YCCK 2111, CMYK 2112, and CMYK 2111.
This commit is contained in:
Nico Weber 2024-01-14 18:48:43 -05:00 • committed by Andrew Kaster
parent d99d086da3
commit 3616d14c80
2 changed files with 4 additions and 8 deletions
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2
Tests/LibGfx/TestImageDecoder.cpp
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@ -325,7 +325,7 @@ TEST_CASE(test_jpeg_ycck)
{
Array test_inputs = {
TEST_INPUT("jpg/ycck-1111.jpg"sv),
// TEST_INPUT("jpg/ycck-2111.jpg"sv), // FIXME: Enable once this decodes correctly
TEST_INPUT("jpg/ycck-2111.jpg"sv),
TEST_INPUT("jpg/ycck-2112.jpg"sv),
};