--- a/src/video/ataricommon/SDL_atarigl_c.h	Fri Nov 26 16:13:24 2004 +0000
+++ b/src/video/ataricommon/SDL_atarigl_c.h	Fri Nov 26 16:16:50 2004 +0000
@@ -33,25 +33,49 @@
 #define _THIS   SDL_VideoDevice *this
 
 struct SDL_PrivateGLData {
-	/* to stop switching drivers while we have a valid context */
-    int gl_active; 
+
+    int gl_active; 	/* to stop switching drivers while we have a valid context */
+	
+	int gl_oldmesa;	/* Old OpenGL support ? */
+
+	int	gl_pixelsize;	/* for CopyShadow functions */
+
+	Uint8 *gl_shadow;	/* Shadow buffer for old implementations */
 
 	/* for unsupported OSMesa buffer formats */
-	void (*ConvertSurface)(SDL_Surface *surface);	
+	void (*ConvertSurface)(_THIS, SDL_Surface *surface);	
+
+	/* to convert the shadow buffer to the screen format */
+	void (*CopyShadow)(_THIS, SDL_Surface *surface);	
+
+	OSMesaContext	ctx;
 
-#ifdef HAVE_OPENGL
-	OSMesaContext	ctx;
-#endif
+	/* osmesa.ldg */
+	OSMesaContext (*OSMesaCreateContextExt)( GLenum format, GLint depthBits, GLint stencilBits, GLint accumBits, OSMesaContext sharelist);
+	void (*OSMesaDestroyContext)( OSMesaContext ctx );
+	GLboolean (*OSMesaMakeCurrent)( OSMesaContext ctx, void *buffer, GLenum type, GLsizei width, GLsizei height );
+	void (*OSMesaPixelStore)( GLint pname, GLint value );
+	void * (*OSMesaGetProcAddress)( const char *funcName );
+	void (*glGetIntegerv)( GLenum pname, GLint *value );
+
+	/* mesa_gl.ldg, tiny_gl.ldg */
+	void *(*OSMesaCreateLDG)( long format, long type, long width, long height );
+	void (*OSMesaDestroyLDG)(void);
 };
 
-/* Old variable names */
+/* Variable names */
 #define gl_active	(this->gl_data->gl_active)
 #define gl_ctx		(this->gl_data->ctx)
+#define gl_oldmesa	(this->gl_data->gl_oldmesa)
+#define gl_pixelsize	(this->gl_data->gl_pixelsize)
+#define gl_shadow	(this->gl_data->gl_shadow)
 #define gl_convert	(this->gl_data->ConvertSurface)
+#define gl_copyshadow	(this->gl_data->CopyShadow)
 
 /* OpenGL functions */
 extern int SDL_AtariGL_Init(_THIS, SDL_Surface *current);
 extern void SDL_AtariGL_Quit(_THIS);
+extern void SDL_AtariGL_InitPointers(_THIS);
 
 extern int SDL_AtariGL_LoadLibrary(_THIS, const char *path);
 extern void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc);