Sequencer: Add gaussian blur effect

Currently this gaussian blur implementation accumulates values in the
square kernel rather that doing X direction and then Y direction because
of the lack of using multiple-staged filters.

Once we can we'll implement a way to apply filter as multiple stages we
can optimize hell of a lot in here.

Another thing we can do is to use SSE2 instructions here.

1 files changed, 7 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index bd2d39ff1f0..4795048d346 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -249,6 +249,11 @@ typedef struct SpeedControlVars {
 	int lastValidFrame;
 } SpeedControlVars;
 
+typedef struct GaussianBlurVars {
+	float size_x;
+	float size_y;
+} GaussianBlurVars;
+
 /* ***************** Sequence modifiers ****************** */
 
 typedef struct SequenceModifierData {
@@ -421,7 +426,8 @@ enum {
 	SEQ_TYPE_SPEED       = 29,
 	SEQ_TYPE_MULTICAM    = 30,
 	SEQ_TYPE_ADJUSTMENT  = 31,
-	SEQ_TYPE_EFFECT_MAX  = 31
+	SEQ_TYPE_GAUSSIAN_BLUR = 40,
+	SEQ_TYPE_EFFECT_MAX  = 40
 };
 
 #define SEQ_MOVIECLIP_RENDER_UNDISTORTED (1 << 0)