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LibGfx/TIFF: Accept images with a single strip and no RowsPerStrip tag

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This tag is required by the specification, but some encoders (at least
Krita) don't write it for images with a single strip.

The test file was generated by opening deflate.tiff in Krita and saving
it with the DEFLATE compression.
This commit is contained in:
Lucas CHOLLET 2024-01-16 00:27:52 -05:00 • committed by Andreas Kling
parent 284e785053
commit c2c7365494
4 changed files with 20 additions and 4 deletions
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12
Tests/LibGfx/TestImageDecoder.cpp
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@ -591,6 +591,18 @@ TEST_CASE(test_tiff_deflate)
EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
}
TEST_CASE(test_tiff_krita)
{
auto file = TRY_OR_FAIL(Core::MappedFile::map(TEST_INPUT("tiff/krita.tif"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_tiff_orientation)
{
auto file = TRY_OR_FAIL(Core::MappedFile::map(TEST_INPUT("tiff/orientation.tiff"sv)));

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Tests/LibGfx/test-inputs/tiff/krita.tif Normal file
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