From db984edf24c16121b04f798e06d0ea509c7b3d88 Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <stefano.pigozzi@gmail.com>
Date: Sun, 7 Oct 2012 19:22:18 +0200
Subject: gl_common: allow compilation on Mac OS 10.6

Define just enough constants to allow compilation on OS X Snow Leopard.
mpv's OpenGL autodetection features should make the rest.
---
 libvo/gl_common.h       |  5 ++++-
 libvo/gl_header_fixes.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/libvo/gl_common.h b/libvo/gl_common.h
index d2592b2f4f..7f9dc28083 100644
--- a/libvo/gl_common.h
+++ b/libvo/gl_common.h
@@ -34,8 +34,11 @@
 #include "csputils.h"
 
 #if defined(CONFIG_GL_COCOA) && !defined(CONFIG_GL_X11)
-#include <OpenGL/gl.h>
+#ifdef GL_VERSION_3_0
 #include <OpenGL/gl3.h>
+#else
+#include <OpenGL/gl.h>
+#endif
 #include <OpenGL/glext.h>
 #else
 #include <GL/gl.h>
diff --git a/libvo/gl_header_fixes.h b/libvo/gl_header_fixes.h
index c6f260b289..ebdbbb35b4 100644
--- a/libvo/gl_header_fixes.h
+++ b/libvo/gl_header_fixes.h
@@ -229,3 +229,17 @@
 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
 #define WGL_CONTEXT_CORE_PROFILE_BIT_ARB   0x00000001
 #endif
+
+// Define just enough constants to make the OpenGL 3 code compile against
+// older SDKs. Values are taken straight from OpenGL/gl3.h
+#if defined __APPLE__ && !(defined GL_VERSION_3_0)
+#define GL_RGBA16F                        0x881A
+#define GL_RGB16F                         0x881B
+#define GL_MAJOR_VERSION                  0x821B
+#define GL_MINOR_VERSION                  0x821C
+#define GL_NUM_EXTENSIONS                 0x821D
+
+#ifndef GL_ARB_framebuffer_sRGB
+#define GL_FRAMEBUFFER_SRGB               0x8DB9
+#endif
+#endif
-- 
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