40 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			40 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C
		
	
	
	
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#ifndef _SHADOWFB_H
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#define _SHADOWFB_H
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#include "xf86str.h"
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/*
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 * User defined callback function.  Passed a pointer to the ScrnInfo struct,
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 * the number of dirty rectangles, and a pointer to the first dirty rectangle
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 * in the array.
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 */
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typedef void (*RefreshAreaFuncPtr) (ScrnInfoPtr, int, BoxPtr);
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/*
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 * ShadowFBInit initializes the shadowfb subsystem.  refreshArea is a pointer
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 * to a user supplied callback function.  This function will be called after
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 * any operation that modifies the framebuffer.  The newly dirtied rectangles
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 * are passed to the callback.
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 *
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 * Returns FALSE in the event of an error.
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 */
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extern _X_EXPORT Bool
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 ShadowFBInit(ScreenPtr pScreen, RefreshAreaFuncPtr refreshArea);
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/*
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 * ShadowFBInit2 is a more featureful refinement of the original shadowfb.
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 * ShadowFBInit2 allows you to specify two callbacks, one to be called
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 * immediately before an operation that modifies the framebuffer, and another
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 * to be called immediately after.
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 *
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 * Returns FALSE in the event of an error
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 */
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extern _X_EXPORT Bool
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ShadowFBInit2(ScreenPtr pScreen,
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              RefreshAreaFuncPtr preRefreshArea,
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              RefreshAreaFuncPtr postRefreshArea);
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#endif                          /* _SHADOWFB_H */
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