From 58900728094fccba319d6aa4ec85b69319f4d578 Mon Sep 17 00:00:00 2001
From: oy <Tom_Adams@web.de>
Date: Mon, 10 Feb 2014 19:06:22 +0100
Subject: [PATCH] fixed 3dtexture usage on windows

---
 src/engine/client/backend_sdl.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/engine/client/backend_sdl.cpp b/src/engine/client/backend_sdl.cpp
index 734d89ebc..02fbe17eb 100644
--- a/src/engine/client/backend_sdl.cpp
+++ b/src/engine/client/backend_sdl.cpp
@@ -7,6 +7,11 @@
 #include "graphics_threaded.h"
 #include "backend_sdl.h"
 
+
+#if defined(CONF_FAMILY_WINDOWS)
+	PFNGLTEXIMAGE3DPROC glTexImage3D;
+#endif
+
 // ------------ CGraphicsBackend_Threaded
 
 void CGraphicsBackend_Threaded::ThreadFunc(void *pUser)
@@ -603,6 +608,15 @@ int CGraphicsBackend_SDL_OpenGL::Init(const char *pName, int *Width, int *Height
 		return -1;
 	}		
 
+	#if defined(CONF_FAMILY_WINDOWS)
+		glTexImage3D = (PFNGLTEXIMAGE3DPROC) wglGetProcAddress("glTexImage3D");
+		if(glTexImage3D == 0)
+		{
+			dbg_msg("gfx", "glTexImage3D not supported");
+			return -1;
+		}
+	#endif
+
 	SDL_ShowCursor(0);
 
 	// fetch gl contexts and release the context from this thread