[deb_xorg-server.git] / hw / xfree86 / shadowfb / shadowfb.h


#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.
 */
extern _X_EXPORT 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
 */
extern _X_EXPORT Bool

ShadowFBInit2(ScreenPtr pScreen,
              RefreshAreaFuncPtr preRefreshArea,
              RefreshAreaFuncPtr postRefreshArea);

#endif                          /* _SHADOWFB_H */
Commit	Line	Data
a09e091a JB	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 */