1 files changed, 43 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/shadowfb/shadowfb.h b/xorg-server/hw/xfree86/shadowfb/shadowfb.h
new file mode 100644
index 000000000..6c9635879
--- /dev/null
+++ b/xorg-server/hw/xfree86/shadowfb/shadowfb.h
@@ -0,0 +1,43 @@
+
+#ifndef _SHADOWFB_H
+#define _SHADOWFB_H
+
+#include "xf86str.h"
+
+/*
+ * User defined callback function.  Passed a pointer to the ScrnInfo struct,
+ * the number of dirty rectangles, and a pointer to the first dirty rectangle
+ * in the array.
+ */
+typedef void (*RefreshAreaFuncPtr)(ScrnInfoPtr, int, BoxPtr);
+
+/*
+ * ShadowFBInit initializes the shadowfb subsystem.  refreshArea is a pointer
+ * to a user supplied callback function.  This function will be called after
+ * any operation that modifies the framebuffer.  The newly dirtied rectangles
+ * are passed to the callback.
+ *
+ * Returns FALSE in the event of an error.
+ */
+Bool
+ShadowFBInit (
+    ScreenPtr		pScreen,
+    RefreshAreaFuncPtr  refreshArea
+);
+
+/*
+ * ShadowFBInit2 is a more featureful refinement of the original shadowfb.
+ * ShadowFBInit2 allows you to specify two callbacks, one to be called
+ * immediately before an operation that modifies the framebuffer, and another
+ * to be called immediately after.  
+ *
+ * Returns FALSE in the event of an error
+ */
+Bool
+ShadowFBInit2 (
+    ScreenPtr		pScreen,
+    RefreshAreaFuncPtr  preRefreshArea,
+    RefreshAreaFuncPtr  postRefreshArea
+);
+
+#endif /* _SHADOWFB_H */