Implement GPU-side dither

Summary:
Uses some magic pseudo-random which is actually a
texture coordinate hashing function.

TODOs:
- Dither noise is the same for all the frames.
- It's different from Floyd's dither we've been
  using before.
- Currently CPU and GPU dithering used different
  implementation. Ideally we need to use the same
  dither in CPU.

Reviewers: brecht

Reviewed By: brecht

Differential Revision: http://developer.blender.org/D58

1 files changed, 2 insertions, 2 deletions

diff --git a/intern/opencolorio/ocio_capi.cc b/intern/opencolorio/ocio_capi.cc
index 47ee3afddfd..a4f2db456e8 100644
--- a/intern/opencolorio/ocio_capi.cc
+++ b/intern/opencolorio/ocio_capi.cc
@@ -324,9 +324,9 @@ int OCIO_supportGLSLDraw(void)
 }
 
 int OCIO_setupGLSLDraw(struct OCIO_GLSLDrawState **state_r, OCIO_ConstProcessorRcPtr *processor,
-                       OCIO_CurveMappingSettings *curve_mapping_settings, bool predivide)
+                       OCIO_CurveMappingSettings *curve_mapping_settings, float dither, bool predivide)
 {
-	return (int) impl->setupGLSLDraw(state_r, processor, curve_mapping_settings, predivide);
+	return (int) impl->setupGLSLDraw(state_r, processor, curve_mapping_settings, dither, predivide);
 }
 
 void OCIO_finishGLSLDraw(struct OCIO_GLSLDrawState *state)