From 7d82dbc3a86abdbef6df59ef2e41caf7ce1937a1 Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@flibitijibibo.com>
Date: Sun, 5 May 2013 21:01:20 -0400
Subject: [PATCH] Implemented SDL_GL_SHARE_WITH_CURRENT_CONTEXT for Mac OS X.

---
 src/video/cocoa/SDL_cocoaopengl.m | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/video/cocoa/SDL_cocoaopengl.m b/src/video/cocoa/SDL_cocoaopengl.m
index e1f443979..f52e3e91e 100644
--- a/src/video/cocoa/SDL_cocoaopengl.m
+++ b/src/video/cocoa/SDL_cocoaopengl.m
@@ -90,6 +90,7 @@
     NSOpenGLPixelFormatAttribute attr[32];
     NSOpenGLPixelFormat *fmt;
     NSOpenGLContext *context;
+    NSOpenGLContext *share_context = nil;
     int i = 0;
 
     if (_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) {
@@ -182,7 +183,11 @@
         return NULL;
     }
 
-    context = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:nil];
+    if (_this->gl_config.share_with_current_context) {
+        share_context = (NSOpenGLContext*)(_this->current_glctx);
+    }
+
+    context = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:share_context];
 
     [fmt release];