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LibGfx/ICC: Cache presence of various tags
Reduces time spent rendering page 3 of 0000849.pdf from 1.45s to 1.32s on my machine. Also reduces the time to run Meta/test_pdf.py on 0000.zip (without 0000849.pdf) from 58s to 55s.
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2 changed files with 27 additions and 14 deletions
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@ -249,6 +249,13 @@ private:
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ErrorOr<FloatVector3> to_pcs_a_to_b(TagData const& tag_data, ReadonlyBytes) const;
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ErrorOr<void> from_pcs_b_to_a(TagData const& tag_data, FloatVector3 const&, Bytes) const;
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// Cached values.
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bool m_cached_has_any_a_to_b_tag { false };
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bool m_cached_has_a_to_b0_tag { false };
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bool m_cached_has_any_b_to_a_tag { false };
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bool m_cached_has_b_to_a0_tag { false };
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bool m_cached_has_all_rgb_matrix_tags { false };
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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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