Sequencer: per-sequence modifier stack for color grading

This implements basic color grading modifiers in sequencer, supporting
color balance, RGB curves and HUE corrections.

Implementation is close to object modifiers, some details are there:

http://wiki.blender.org/index.php/User:Nazg-gul/SequencerModifiers

Modifiers supports multi-threaded calculation, masks and instant
parameter changes.

Also added cache for pre-processed image buffers for current frame,
so changing sequence properties does not require rendering of original
sequence (like rendering scene, loading file from disk and so)

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_colortools.h b/source/blender/blenkernel/BKE_colortools.h
index f58af8f39a0..dcb40c960b1 100644
--- a/source/blender/blenkernel/BKE_colortools.h
+++ b/source/blender/blenkernel/BKE_colortools.h
@@ -47,8 +47,11 @@ struct rctf;
 #   define DO_INLINE static inline
 #endif
 
+void                curvemapping_set_defaults(struct CurveMapping *cumap, int tot, float minx, float miny, float maxx, float maxy);
 struct CurveMapping *curvemapping_add(int tot, float minx, float miny, float maxx, float maxy);
+void                curvemapping_free_data(struct CurveMapping *cumap);
 void                curvemapping_free(struct CurveMapping *cumap);
+void                curvemapping_copy_data(struct CurveMapping *target, struct CurveMapping *cumap);
 struct CurveMapping *curvemapping_copy(struct CurveMapping *cumap);
 void                curvemapping_set_black_white(struct CurveMapping *cumap, const float black[3], const float white[3]);
 
@@ -69,6 +72,7 @@ float               curvemap_evaluateF(struct CurveMap *cuma, float value);
 float               curvemapping_evaluateF(struct CurveMapping *cumap, int cur, float value);
 void                curvemapping_evaluate3F(struct CurveMapping *cumap, float vecout[3], const float vecin[3]);
 void                curvemapping_evaluateRGBF(struct CurveMapping *cumap, float vecout[3], const float vecin[3]);
+void                curvemapping_evaluate_premulRGB(struct CurveMapping *cumap, unsigned char vecout_byte[3], const unsigned char vecin_byte[3]);
 void                curvemapping_evaluate_premulRGBF(struct CurveMapping *cumap, float vecout[3], const float vecin[3]);
 void                curvemapping_do_ibuf(struct CurveMapping *cumap, struct ImBuf *ibuf);
 void                curvemapping_premultiply(struct CurveMapping *cumap, int restore);