--- /dev/null
+#ifndef U_DIRTY_FLAGS_H
+#define U_DIRTY_FLAGS_H
+
+/* Here's a convenient list of dirty flags to use in a driver. Either
+ * include it directly or use it as a starting point for your own
+ * list.
+ */
+#define U_NEW_VIEWPORT 0x1
+#define U_NEW_RASTERIZER 0x2
+#define U_NEW_FS 0x4
+#define U_NEW_FS_CONSTANTS 0x8
+#define U_NEW_FS_SAMPLER_VIEW 0x10
+#define U_NEW_FS_SAMPLER_STATES 0x20
+#define U_NEW_VS 0x40
+#define U_NEW_VS_CONSTANTS 0x80
+#define U_NEW_VS_SAMPLER_VIEW 0x100
+#define U_NEW_VS_SAMPLER_STATES 0x200
+#define U_NEW_BLEND 0x400
+#define U_NEW_CLIP 0x800
+#define U_NEW_SCISSOR 0x1000
+#define U_NEW_POLYGON_STIPPLE 0x2000
+#define U_NEW_FRAMEBUFFER 0x4000
+#define U_NEW_VERTEX_ELEMENTS 0x8000
+#define U_NEW_VERTEX_BUFFER 0x10000
+#define U_NEW_QUERY 0x20000
+#define U_NEW_DEPTH_STENCIL 0x40000
+
+#endif