hw/xfree86/shadowfb/shadowfb.h

   1
   2 #ifndef _SHADOWFB_H
   3 #define _SHADOWFB_H
   4
   5 #include "xf86str.h"
   6
   7 /*
   8  * User defined callback function.  Passed a pointer to the ScrnInfo struct,
   9  * the number of dirty rectangles, and a pointer to the first dirty rectangle
  10  * in the array.
  11  */
  12 typedef void (*RefreshAreaFuncPtr) (ScrnInfoPtr, int, BoxPtr);
  13
  14 /*
  15  * ShadowFBInit initializes the shadowfb subsystem.  refreshArea is a pointer
  16  * to a user supplied callback function.  This function will be called after
  17  * any operation that modifies the framebuffer.  The newly dirtied rectangles
  18  * are passed to the callback.
  19  *
  20  * Returns FALSE in the event of an error.
  21  */
  22 extern _X_EXPORT Bool
  23  ShadowFBInit(ScreenPtr pScreen, RefreshAreaFuncPtr refreshArea);
  24
  25 /*
  26  * ShadowFBInit2 is a more featureful refinement of the original shadowfb.
  27  * ShadowFBInit2 allows you to specify two callbacks, one to be called
  28  * immediately before an operation that modifies the framebuffer, and another
  29  * to be called immediately after.
  30  *
  31  * Returns FALSE in the event of an error
  32  */
  33 extern _X_EXPORT Bool
  34
  35 ShadowFBInit2(ScreenPtr pScreen,
  36               RefreshAreaFuncPtr preRefreshArea,
  37               RefreshAreaFuncPtr postRefreshArea);
  38
  39 #endif                          /* _SHADOWFB_H */