From 513aacbdb6e425005eee6d83fdca0f06f6e6e374 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Tue, 11 Apr 2017 15:28:35 +0200
Subject: [PATCH] Use immediate mode API for OpenColorIO

---
 build_files/cmake/macros.cmake       | 2 +-
 intern/opencolorio/CMakeLists.txt    | 1 +
 intern/opencolorio/ocio_impl_glsl.cc | 7 +++++--
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake
index 27728917af5..7f46c40e27a 100644
--- a/build_files/cmake/macros.cmake
+++ b/build_files/cmake/macros.cmake
@@ -599,7 +599,6 @@ function(SETUP_BLENDER_SORTED_LIBS)
 		bf_bmesh
 		bf_gpu
 		bf_draw
-		bf_intern_gawain
 		bf_blenloader
 		bf_blenkernel
 		bf_physics
@@ -656,6 +655,7 @@ function(SETUP_BLENDER_SORTED_LIBS)
 		cycles_util
 		cycles_subd
 		bf_intern_opencolorio
+		bf_intern_gawain
 		bf_intern_eigen
 		extern_rangetree
 		extern_wcwidth
diff --git a/intern/opencolorio/CMakeLists.txt b/intern/opencolorio/CMakeLists.txt
index f7e8d909f2c..d2dd8a3c419 100644
--- a/intern/opencolorio/CMakeLists.txt
+++ b/intern/opencolorio/CMakeLists.txt
@@ -27,6 +27,7 @@ set(INC
 	.
 	../glew-mx
 	../guardedalloc
+	../gawain
 	../../source/blender/blenlib
 )
 
diff --git a/intern/opencolorio/ocio_impl_glsl.cc b/intern/opencolorio/ocio_impl_glsl.cc
index 9dba37f27eb..819dd6632b3 100644
--- a/intern/opencolorio/ocio_impl_glsl.cc
+++ b/intern/opencolorio/ocio_impl_glsl.cc
@@ -48,6 +48,9 @@
 #  pragma warning(pop)
 #endif
 
+extern "C" {
+#include "gawain/immediate.h"
+}
 
 using namespace OCIO_NAMESPACE;
 
@@ -408,7 +411,7 @@ bool OCIOImpl::setupGLSLDraw(OCIO_GLSLDrawState **state_r, OCIO_ConstProcessorRc
 
 		glActiveTexture(GL_TEXTURE0);
 
-		glUseProgram(state->program);
+		immBindProgram(state->program);
 
 		glUniform1i(glGetUniformLocation(state->program, "image_texture"), 0);
 		glUniform1i(glGetUniformLocation(state->program, "lut3d_texture"), 1);
@@ -461,7 +464,7 @@ void OCIOImpl::finishGLSLDraw(OCIO_GLSLDrawState *state)
 {
 	glActiveTexture(state->last_texture_unit);
 	glBindTexture(GL_TEXTURE_2D, state->last_texture);
-	glUseProgram(0);
+	immUnbindProgram();
 }
 
 void OCIOImpl::freeGLState(struct OCIO_GLSLDrawState *state)