From 2579be0c3bf50f060364b937e6b2446ea3547e4b Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 16 Dec 2013 01:05:29 +0200
Subject: [PATCH] Add interface for glBindFragDataLocation, required for modern
 shaders

---
 extensions/ext_gpu_shader4.glext | 1 +
 source/program.cpp               | 7 +++++++
 source/program.h                 | 1 +
 3 files changed, 9 insertions(+)
 create mode 100644 extensions/ext_gpu_shader4.glext

diff --git a/extensions/ext_gpu_shader4.glext b/extensions/ext_gpu_shader4.glext
new file mode 100644
index 00000000..54d1360e
--- /dev/null
+++ b/extensions/ext_gpu_shader4.glext
@@ -0,0 +1 @@
+extension EXT_gpu_shader4
diff --git a/source/program.cpp b/source/program.cpp
index c8ce67a8..9c95ee17 100644
--- a/source/program.cpp
+++ b/source/program.cpp
@@ -5,6 +5,7 @@
 #include <msp/gl/extensions/arb_shader_objects.h>
 #include <msp/gl/extensions/arb_uniform_buffer_object.h>
 #include <msp/gl/extensions/arb_vertex_shader.h>
+#include <msp/gl/extensions/ext_gpu_shader4.h>
 #include <msp/strings/format.h>
 #include "buffer.h"
 #include "error.h"
@@ -88,6 +89,12 @@ void Program::bind_attribute(unsigned index, const string &name)
 	glBindAttribLocation(id, index, name.c_str());
 }
 
+void Program::bind_fragment_data(unsigned index, const string &name)
+{
+	static Require _req(EXT_gpu_shader4);
+	glBindFragDataLocation(id, index, name.c_str());
+}
+
 void Program::link()
 {
 	for(ShaderList::iterator i=shaders.begin(); i!=shaders.end(); ++i)
diff --git a/source/program.h b/source/program.h
index a7622ecb..642bcf5e 100644
--- a/source/program.h
+++ b/source/program.h
@@ -81,6 +81,7 @@ public:
 	const ShaderList &get_shaders() const { return shaders; }
 
 	void bind_attribute(unsigned, const std::string &);
+	void bind_fragment_data(unsigned, const std::string &);
 
 	void link();
 private:
-- 
2.43.0