From 5f8bc38419379b7d47aa69cb68d380728f5ee26f Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 22 Aug 2012 16:08:50 +0300
Subject: [PATCH] Add definitions for the GL_ARB_uniform_buffer_object
 extension

---
 source/arb_uniform_buffer_object.cpp | 27 +++++++++++++++++++++++++++
 source/arb_uniform_buffer_object.h   | 23 +++++++++++++++++++++++
 source/extension.cpp                 |  3 +++
 3 files changed, 53 insertions(+)
 create mode 100644 source/arb_uniform_buffer_object.cpp
 create mode 100644 source/arb_uniform_buffer_object.h

diff --git a/source/arb_uniform_buffer_object.cpp b/source/arb_uniform_buffer_object.cpp
new file mode 100644
index 00000000..5de8da78
--- /dev/null
+++ b/source/arb_uniform_buffer_object.cpp
@@ -0,0 +1,27 @@
+#include "extension.h"
+#include "arb_uniform_buffer_object.h"
+
+namespace Msp {
+namespace GL {
+
+PFNGLGETUNIFORMINDICESPROC glGetUniformIndices = 0;
+PFNGLGETACTIVEUNIFORMSIVPROC glGetActiveUniformsiv = 0;
+PFNGLGETACTIVEUNIFORMNAMEPROC glGetActiveUniformName = 0;
+PFNGLGETUNIFORMBLOCKINDEXPROC glGetUniformBlockIndex = 0;
+PFNGLGETACTIVEUNIFORMBLOCKIVPROC glGetActiveUniformBlockiv = 0;
+PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glGetActiveUniformBlockName = 0;
+PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding = 0;
+
+void init_arb_uniform_buffer_object()
+{
+	glGetUniformIndices = reinterpret_cast<PFNGLGETUNIFORMINDICESPROC>(get_proc_address("glGetUniformIndices"));
+	glGetActiveUniformsiv = reinterpret_cast<PFNGLGETACTIVEUNIFORMSIVPROC>(get_proc_address("glGetActiveUniformsiv"));
+	glGetActiveUniformName = reinterpret_cast<PFNGLGETACTIVEUNIFORMNAMEPROC>(get_proc_address("glGetActiveUniformName"));
+	glGetUniformBlockIndex = reinterpret_cast<PFNGLGETUNIFORMBLOCKINDEXPROC>(get_proc_address("glGetUniformBlockIndex"));
+	glGetActiveUniformBlockiv = reinterpret_cast<PFNGLGETACTIVEUNIFORMBLOCKIVPROC>(get_proc_address("glGetActiveUniformBlockiv"));
+	glGetActiveUniformBlockName = reinterpret_cast<PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC>(get_proc_address("glGetActiveUniformBlockName"));
+	glUniformBlockBinding = reinterpret_cast<PFNGLUNIFORMBLOCKBINDINGPROC>(get_proc_address("glUniformBlockBinding"));
+}
+
+} // namespace GL
+} // namespace Msp
diff --git a/source/arb_uniform_buffer_object.h b/source/arb_uniform_buffer_object.h
new file mode 100644
index 00000000..e53b1f29
--- /dev/null
+++ b/source/arb_uniform_buffer_object.h
@@ -0,0 +1,23 @@
+#ifndef MSP_GL_ARB_UNIFORM_BUFFER_OBJECT_
+#define MSP_GL_ARB_UNIFORM_BUFFER_OBJECT_
+
+#include "gl.h"
+#include <GL/glext.h>
+
+namespace Msp {
+namespace GL {
+
+extern PFNGLGETUNIFORMINDICESPROC glGetUniformIndices;
+extern PFNGLGETACTIVEUNIFORMSIVPROC glGetActiveUniformsiv;
+extern PFNGLGETACTIVEUNIFORMNAMEPROC glGetActiveUniformName;
+extern PFNGLGETUNIFORMBLOCKINDEXPROC glGetUniformBlockIndex;
+extern PFNGLGETACTIVEUNIFORMBLOCKIVPROC glGetActiveUniformBlockiv;
+extern PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glGetActiveUniformBlockName;
+extern PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding;
+
+void init_arb_uniform_buffer_object();
+
+} // namespace GL
+} // namespace Msp
+
+#endif
diff --git a/source/extension.cpp b/source/extension.cpp
index ef05e39b..c846c59d 100644
--- a/source/extension.cpp
+++ b/source/extension.cpp
@@ -6,6 +6,7 @@
 #include <msp/strings/format.h>
 #include <msp/strings/utils.h>
 #include "arb_shader_objects.h"
+#include "arb_uniform_buffer_object.h"
 #include "arb_vertex_buffer_object.h"
 #include "arb_vertex_program.h"
 #include "arb_vertex_shader.h"
@@ -55,6 +56,8 @@ bool is_supported(const string &ext)
 			init_arb_vertex_buffer_object();
 		if(extensions.count("GL_NV_primitive_restart"))
 			init_nv_primitive_restart();
+		if(extensions.count("GL_ARB_uniform_buffer_object"))
+			init_arb_uniform_buffer_object();
 
 		init_done = true;
 	}
-- 
2.43.0