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LibGfx/ICC: Cache inverted matrix on profile
Reduces time spent rendering page 3 of 0000849.pdf from 1.85s to 1.45s on my machine. As determined by running time Build/lagom/bin/pdf --page 3 --render out.png \ ~/Downloads/0000/0000849.pdf a few times and eyeballing the min time. Also reduces the time to run Meta/test_pdf.py on 0000.zip (without 0000849.pdf) from 1m7s to 58s.
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2 changed files with 10 additions and 5 deletions
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@ -252,6 +252,8 @@ private:
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// Only valid for RGB matrix-based profiles.
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ErrorOr<FloatMatrix3x3> xyz_to_rgb_matrix() const;
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FloatMatrix3x3 rgb_to_xyz_matrix() const;
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mutable Optional<FloatMatrix3x3> m_cached_xyz_to_rgb_matrix;
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};
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}
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