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Add some missing documentation.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Using the current igt_matrix for NV12 conversion ends up being
about 4x as slow as the current non-igt_matrix based code. Unrolling
and inlining igt_matrix_transform() improves that factor to ~1.5x.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Add a helper library for basic matrix math.
v2: Make the identity matrix static const (Chris)
Add the m(row,col) macro (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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