D627: Memory usage optimization for the compositor.

The compostor used a fixed size of 4 floats to hold pixel data. this
patch will select size of a pixel based on its type.
It uses 1 float for Value, 3 float for vector and 4 floats for color
data types.

When benchmarking on shots (opening shot of caminandes) we get a
reduction of memory of 30% and a tiny speedup as less data
transformations needs to take place (but these are negligable.

More information of the patch can be found on
https://developer.blender.org/D627 and
http://wiki.blender.org/index.php/Dev:Ref/Proposals/Compositor2014_p1.1_TD

Developers: jbakker & mdewanchand
Thanks for Sergey for his indept review.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp b/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp
index 5644ff30ef3..deeb5094bd0 100644
--- a/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp
+++ b/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp
@@ -36,7 +36,7 @@ void GlareStreaksOperation::generateGlare(float *data, MemoryBuffer *inputTile,
 	bool breaked = false;
 
 	MemoryBuffer *tsrc = inputTile->duplicate();
-	MemoryBuffer *tdst = new MemoryBuffer(NULL, inputTile->getRect());
+	MemoryBuffer *tdst = new MemoryBuffer(COM_DT_COLOR, inputTile->getRect());
 	tdst->clear();
 	memset(data, 0, size4 * sizeof(float));