From bd4602fb5df65fefefd2d59507785b3a40d9e559 Mon Sep 17 00:00:00 2001
From: Vincent Lejeune <vljn@ovi.com>
Date: Mon, 15 Sep 2014 23:39:04 +0200
Subject: [PATCH] Fix context creation on linux when driver support gl 4.3

---
 .../source/Irrlicht/CIrrDeviceLinux.cpp       | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp b/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
index 00353a264..189f78aa3 100644
--- a/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
+++ b/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
@@ -499,6 +499,36 @@ void IrrPrintXGrabError(int grabResult, const c8 * grabCommand )
 static GLXContext getMeAGLContext(Display *display, GLXFBConfig glxFBConfig)
 {
 	GLXContext Context;
+  int compat43ctxdebug[] =
+		{
+			GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
+			GLX_CONTEXT_MINOR_VERSION_ARB, 3,
+			GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
+			GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB,
+			None
+		};
+    int compat43ctx[] =
+    {
+        GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
+        GLX_CONTEXT_MINOR_VERSION_ARB, 3,
+        GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
+        None
+    };
+	int core43ctxdebug[] =
+		{
+			GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
+			GLX_CONTEXT_MINOR_VERSION_ARB, 3,
+			GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
+			GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB,
+			None
+		};
+    int core43ctx[] =
+    {
+        GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
+        GLX_CONTEXT_MINOR_VERSION_ARB, 3,
+        GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
+        None
+    };
 	int compat33ctxdebug[] =
 		{
 			GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
@@ -553,7 +583,19 @@ static GLXContext getMeAGLContext(Display *display, GLXFBConfig glxFBConfig)
 	PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB = 0;
 	glXCreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
 						glXGetProcAddressARB( (const GLubyte *) "glXCreateContextAttribsARB" );
+  
+  // create compat 4.3 context (for proprietary drivers)
+    Context = glXCreateContextAttribsARB(display, glxFBConfig, 0, True, GLContextDebugBit ? compat43ctxdebug : compat43ctx);
+	if (!XErrorSignaled)
+		return Context;
 
+  XErrorSignaled = false;
+	// create core 4.3 context (for mesa)
+    Context = glXCreateContextAttribsARB(display, glxFBConfig, 0, True, GLContextDebugBit ? core43ctxdebug : core43ctx);
+	if (!XErrorSignaled)
+		return Context;
+
+	XErrorSignaled = false;
 	// create compat 3.3 context (for proprietary drivers)
     Context = glXCreateContextAttribsARB(display, glxFBConfig, 0, True, GLContextDebugBit ? compat33ctxdebug : compat33ctx);
 	if (!XErrorSignaled)