mesa: refactor: move glReadPixels code into new readpix.c file

src/mesa/main/state.c

@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.1
+ * Version:  7.1
  *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -79,6 +79,7 @@
 #include "queryobj.h"
 #endif
 #include "rastpos.h"
+#include "readpix.h"
 #include "state.h"
 #include "stencil.h"
 #include "teximage.h"