g3dvl: Color space conv interface & vl impl.

Interface is pipe_video_context::set_csc_matrix().

vl_csc.h defines some helpers to generate CSC matrices based on one of
the color standard and a user defined ProcAmp (brightness, contrast,
saturation, hue).

1 files changed, 26 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/vl/vl_csc.h b/src/gallium/auxiliary/vl/vl_csc.h
new file mode 100644
index 0000000000..c3b87d279c
--- /dev/null
+++ b/src/gallium/auxiliary/vl/vl_csc.h
@@ -0,0 +1,26 @@
+#ifndef vl_csc_h
+#define vl_csc_h
+
+#include <pipe/p_compiler.h>
+
+struct vl_procamp
+{
+   float brightness;
+   float contrast;
+   float saturation;
+   float hue;
+};
+
+enum VL_CSC_COLOR_STANDARD
+{
+   VL_CSC_COLOR_STANDARD_IDENTITY,
+   VL_CSC_COLOR_STANDARD_BT_601,
+   VL_CSC_COLOR_STANDARD_BT_709
+};
+
+void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs,
+                       struct vl_procamp *procamp,
+                       bool full_range,
+                       float *matrix);
+
+#endif /* vl_csc_h */