781 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			781 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * misprite.c
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|  *
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|  * machine independent software sprite routines
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|  */
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| 
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| 
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| /*
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| 
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| Copyright 1989, 1998  The Open Group
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| 
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| Permission to use, copy, modify, distribute, and sell this software and its
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| documentation for any purpose is hereby granted without fee, provided that
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| the above copyright notice appear in all copies and that both that
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| copyright notice and this permission notice appear in supporting
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| documentation.
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| 
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| The above copyright notice and this permission notice shall be included in
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| all copies or substantial portions of the Software.
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| 
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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| OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 
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| Except as contained in this notice, the name of The Open Group shall not be
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| used in advertising or otherwise to promote the sale, use or other dealings
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| in this Software without prior written authorization from The Open Group.
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| */
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| 
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| #ifdef HAVE_DIX_CONFIG_H
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| #include <dix-config.h>
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| #endif
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| 
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| # include   <X11/X.h>
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| # include   <X11/Xproto.h>
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| # include   "misc.h"
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| # include   "pixmapstr.h"
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| # include   "input.h"
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| # include   "mi.h"
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| # include   "cursorstr.h"
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| # include   <X11/fonts/font.h>
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| # include   "scrnintstr.h"
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| # include   "colormapst.h"
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| # include   "windowstr.h"
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| # include   "gcstruct.h"
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| # include   "mipointer.h"
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| # include   "mispritest.h"
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| # include   "dixfontstr.h"
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| # include   <X11/fonts/fontstruct.h>
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| 
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| #ifdef RENDER
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| # include   "mipict.h"
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| #endif
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| # include   "damage.h"
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| 
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| #define SPRITE_DEBUG_ENABLE 0
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| #if SPRITE_DEBUG_ENABLE
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| #define SPRITE_DEBUG(x)	ErrorF x
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| #else
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| #define SPRITE_DEBUG(x)
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| #endif
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| 
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| /*
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|  * screen wrappers
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|  */
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| 
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| static DevPrivateKey miSpriteScreenKey = &miSpriteScreenKey;
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| 
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| static Bool	    miSpriteCloseScreen(int i, ScreenPtr pScreen);
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| static void	    miSpriteGetImage(DrawablePtr pDrawable, int sx, int sy,
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| 				     int w, int h, unsigned int format,
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| 				     unsigned long planemask, char *pdstLine);
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| static void	    miSpriteGetSpans(DrawablePtr pDrawable, int wMax,
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| 				     DDXPointPtr ppt, int *pwidth, int nspans,
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| 				     char *pdstStart);
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| static void	    miSpriteSourceValidate(DrawablePtr pDrawable, int x, int y,
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| 					   int width, int height);
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| static void	    miSpriteCopyWindow (WindowPtr pWindow,
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| 					DDXPointRec ptOldOrg,
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| 					RegionPtr prgnSrc);
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| static void	    miSpriteBlockHandler(int i, pointer blockData,
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| 					 pointer pTimeout,
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| 					 pointer pReadMask);
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| static void	    miSpriteInstallColormap(ColormapPtr pMap);
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| static void	    miSpriteStoreColors(ColormapPtr pMap, int ndef,
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| 					xColorItem *pdef);
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| 
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| static void	    miSpriteComputeSaved(ScreenPtr pScreen);
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| 
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| #define SCREEN_PROLOGUE(pScreen, field) ((pScreen)->field = \
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|    ((miSpriteScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, \
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| 					miSpriteScreenKey))->field)
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| #define SCREEN_EPILOGUE(pScreen, field)\
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|     ((pScreen)->field = miSprite##field)
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| 
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| /*
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|  * pointer-sprite method table
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|  */
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| 
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| static Bool miSpriteRealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
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| static Bool miSpriteUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
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| static void miSpriteSetCursor(ScreenPtr pScreen, CursorPtr pCursor,
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| 			      int x, int y);
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| static void miSpriteMoveCursor(ScreenPtr pScreen, int x, int y);
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| 
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| _X_EXPORT miPointerSpriteFuncRec miSpritePointerFuncs = {
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|     miSpriteRealizeCursor,
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|     miSpriteUnrealizeCursor,
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|     miSpriteSetCursor,
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|     miSpriteMoveCursor,
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| };
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| 
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| /*
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|  * other misc functions
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|  */
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| 
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| static void miSpriteRemoveCursor(ScreenPtr pScreen);
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| static void miSpriteRestoreCursor(ScreenPtr pScreen);
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| 
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| static void
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| miSpriteReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)
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| {
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|     ScreenPtr		    pScreen = closure;
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|     miSpriteScreenPtr	    pScreenPriv;
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|     
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     if (pScreenPriv->isUp &&
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| 	RECT_IN_REGION (pScreen, pRegion, &pScreenPriv->saved) != rgnOUT)
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|     {
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| 	SPRITE_DEBUG(("Damage remove\n"));
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| 	miSpriteRemoveCursor (pScreen);
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|     }
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| }
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| 
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| /*
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|  * miSpriteInitialize -- called from device-dependent screen
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|  * initialization proc after all of the function pointers have
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|  * been stored in the screen structure.
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|  */
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| 
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| Bool
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| miSpriteInitialize (pScreen, cursorFuncs, screenFuncs)
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|     ScreenPtr		    pScreen;
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|     miSpriteCursorFuncPtr   cursorFuncs;
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|     miPointerScreenFuncPtr  screenFuncs;
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| {
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|     miSpriteScreenPtr	pScreenPriv;
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|     VisualPtr		pVisual;
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|     
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|     if (!DamageSetup (pScreen))
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| 	return FALSE;
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| 
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|     pScreenPriv = (miSpriteScreenPtr) xalloc (sizeof (miSpriteScreenRec));
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|     if (!pScreenPriv)
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| 	return FALSE;
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|     
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|     pScreenPriv->pDamage = DamageCreate (miSpriteReportDamage,
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| 					 (DamageDestroyFunc) 0,
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| 					 DamageReportRawRegion,
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| 					 TRUE,
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| 					 pScreen,
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| 					 (void *) pScreen);
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| 
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|     if (!miPointerInitialize (pScreen, &miSpritePointerFuncs, screenFuncs,TRUE))
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|     {
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| 	xfree ((pointer) pScreenPriv);
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| 	return FALSE;
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|     }
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|     for (pVisual = pScreen->visuals;
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| 	 pVisual->vid != pScreen->rootVisual;
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| 	 pVisual++)
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| 	;
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|     pScreenPriv->pVisual = pVisual;
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|     pScreenPriv->CloseScreen = pScreen->CloseScreen;
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|     pScreenPriv->GetImage = pScreen->GetImage;
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|     pScreenPriv->GetSpans = pScreen->GetSpans;
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|     pScreenPriv->SourceValidate = pScreen->SourceValidate;
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| 
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|     pScreenPriv->CopyWindow = pScreen->CopyWindow;
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|     
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|     pScreenPriv->InstallColormap = pScreen->InstallColormap;
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|     pScreenPriv->StoreColors = pScreen->StoreColors;
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|     
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|     pScreenPriv->BlockHandler = pScreen->BlockHandler;
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|     
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|     pScreenPriv->pCursor = NULL;
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|     pScreenPriv->x = 0;
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|     pScreenPriv->y = 0;
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|     pScreenPriv->isUp = FALSE;
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|     pScreenPriv->shouldBeUp = FALSE;
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|     pScreenPriv->pCacheWin = NullWindow;
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|     pScreenPriv->isInCacheWin = FALSE;
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|     pScreenPriv->checkPixels = TRUE;
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|     pScreenPriv->pInstalledMap = NULL;
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|     pScreenPriv->pColormap = NULL;
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|     pScreenPriv->funcs = cursorFuncs;
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|     pScreenPriv->colors[SOURCE_COLOR].red = 0;
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|     pScreenPriv->colors[SOURCE_COLOR].green = 0;
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|     pScreenPriv->colors[SOURCE_COLOR].blue = 0;
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|     pScreenPriv->colors[MASK_COLOR].red = 0;
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|     pScreenPriv->colors[MASK_COLOR].green = 0;
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|     pScreenPriv->colors[MASK_COLOR].blue = 0;
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|     dixSetPrivate(&pScreen->devPrivates, miSpriteScreenKey, pScreenPriv);
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|     
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|     pScreen->CloseScreen = miSpriteCloseScreen;
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|     pScreen->GetImage = miSpriteGetImage;
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|     pScreen->GetSpans = miSpriteGetSpans;
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|     pScreen->SourceValidate = miSpriteSourceValidate;
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|     
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|     pScreen->CopyWindow = miSpriteCopyWindow;
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|     
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|     pScreen->InstallColormap = miSpriteInstallColormap;
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|     pScreen->StoreColors = miSpriteStoreColors;
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| 
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|     pScreen->BlockHandler = miSpriteBlockHandler;
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|     
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|     return TRUE;
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| }
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| 
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| /*
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|  * Screen wrappers
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|  */
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| 
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| /*
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|  * CloseScreen wrapper -- unwrap everything, free the private data
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|  * and call the wrapped function
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|  */
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| 
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| static Bool
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| miSpriteCloseScreen (i, pScreen)
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|     int i;
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|     ScreenPtr	pScreen;
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| {
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|     miSpriteScreenPtr   pScreenPriv;
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| 
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     pScreen->CloseScreen = pScreenPriv->CloseScreen;
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|     pScreen->GetImage = pScreenPriv->GetImage;
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|     pScreen->GetSpans = pScreenPriv->GetSpans;
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|     pScreen->SourceValidate = pScreenPriv->SourceValidate;
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|     pScreen->BlockHandler = pScreenPriv->BlockHandler;
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|     pScreen->InstallColormap = pScreenPriv->InstallColormap;
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|     pScreen->StoreColors = pScreenPriv->StoreColors;
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| 
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|     miSpriteIsUpFALSE (pScreen, pScreenPriv);
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|     DamageDestroy (pScreenPriv->pDamage);
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|     
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|     xfree ((pointer) pScreenPriv);
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| 
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|     return (*pScreen->CloseScreen) (i, pScreen);
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| }
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| 
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| static void
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| miSpriteGetImage (pDrawable, sx, sy, w, h, format, planemask, pdstLine)
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|     DrawablePtr	    pDrawable;
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|     int		    sx, sy, w, h;
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|     unsigned int    format;
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|     unsigned long   planemask;
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|     char	    *pdstLine;
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| {
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|     ScreenPtr	    pScreen = pDrawable->pScreen;
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|     miSpriteScreenPtr    pScreenPriv;
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|     
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|     SCREEN_PROLOGUE (pScreen, GetImage);
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| 
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     if (pDrawable->type == DRAWABLE_WINDOW &&
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|         pScreenPriv->isUp &&
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| 	ORG_OVERLAP(&pScreenPriv->saved,pDrawable->x,pDrawable->y, sx, sy, w, h))
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|     {
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| 	SPRITE_DEBUG (("GetImage remove\n"));
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| 	miSpriteRemoveCursor (pScreen);
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|     }
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| 
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|     (*pScreen->GetImage) (pDrawable, sx, sy, w, h,
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| 			  format, planemask, pdstLine);
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| 
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|     SCREEN_EPILOGUE (pScreen, GetImage);
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| }
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| 
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| static void
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| miSpriteGetSpans (pDrawable, wMax, ppt, pwidth, nspans, pdstStart)
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|     DrawablePtr	pDrawable;
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|     int		wMax;
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|     DDXPointPtr	ppt;
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|     int		*pwidth;
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|     int		nspans;
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|     char	*pdstStart;
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| {
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|     ScreenPtr		    pScreen = pDrawable->pScreen;
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|     miSpriteScreenPtr	    pScreenPriv;
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|     
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|     SCREEN_PROLOGUE (pScreen, GetSpans);
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| 
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     if (pDrawable->type == DRAWABLE_WINDOW && pScreenPriv->isUp)
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|     {
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| 	DDXPointPtr    	pts;
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| 	int    		*widths;
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| 	int    		nPts;
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| 	int    		xorg,
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| 			yorg;
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| 
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| 	xorg = pDrawable->x;
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| 	yorg = pDrawable->y;
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| 
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| 	for (pts = ppt, widths = pwidth, nPts = nspans;
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| 	     nPts--;
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| 	     pts++, widths++)
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|  	{
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| 	    if (SPN_OVERLAP(&pScreenPriv->saved,pts->y+yorg,
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| 			     pts->x+xorg,*widths))
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| 	    {
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| 		SPRITE_DEBUG (("GetSpans remove\n"));
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| 		miSpriteRemoveCursor (pScreen);
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| 		break;
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| 	    }
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| 	}
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|     }
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| 
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|     (*pScreen->GetSpans) (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
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| 
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|     SCREEN_EPILOGUE (pScreen, GetSpans);
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| }
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| 
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| static void
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| miSpriteSourceValidate (pDrawable, x, y, width, height)
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|     DrawablePtr	pDrawable;
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|     int		x, y, width, height;
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| {
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|     ScreenPtr		    pScreen = pDrawable->pScreen;
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|     miSpriteScreenPtr	    pScreenPriv;
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|     
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|     SCREEN_PROLOGUE (pScreen, SourceValidate);
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| 
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     if (pDrawable->type == DRAWABLE_WINDOW && pScreenPriv->isUp &&
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| 	ORG_OVERLAP(&pScreenPriv->saved, pDrawable->x, pDrawable->y,
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| 		    x, y, width, height))
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|     {
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| 	SPRITE_DEBUG (("SourceValidate remove\n"));
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| 	miSpriteRemoveCursor (pScreen);
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|     }
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| 
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|     if (pScreen->SourceValidate)
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| 	(*pScreen->SourceValidate) (pDrawable, x, y, width, height);
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| 
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|     SCREEN_EPILOGUE (pScreen, SourceValidate);
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| }
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| 
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| static void
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| miSpriteCopyWindow (WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
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| {
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|     ScreenPtr	pScreen = pWindow->drawable.pScreen;
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|     miSpriteScreenPtr	    pScreenPriv;
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|     
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|     SCREEN_PROLOGUE (pScreen, CopyWindow);
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| 
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|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						      miSpriteScreenKey);
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|     /*
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|      * Damage will take care of destination check
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|      */
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|     if (pScreenPriv->isUp &&
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| 	RECT_IN_REGION (pScreen, prgnSrc, &pScreenPriv->saved) != rgnOUT)
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|     {
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| 	SPRITE_DEBUG (("CopyWindow remove\n"));
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| 	miSpriteRemoveCursor (pScreen);
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|     }
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| 
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|     (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);
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|     SCREEN_EPILOGUE (pScreen, CopyWindow);
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| }
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| 
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| static void
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| miSpriteBlockHandler (i, blockData, pTimeout, pReadmask)
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|     int	i;
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|     pointer	blockData;
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|     pointer	pTimeout;
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|     pointer	pReadmask;
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| {
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|     ScreenPtr		pScreen = screenInfo.screens[i];
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|     miSpriteScreenPtr	pPriv;
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| 
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|     pPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						miSpriteScreenKey);
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|     SCREEN_PROLOGUE(pScreen, BlockHandler);
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|     
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|     (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
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| 
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|     SCREEN_EPILOGUE(pScreen, BlockHandler);
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| 
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|     if (!pPriv->isUp && pPriv->shouldBeUp)
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|     {
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| 	SPRITE_DEBUG (("BlockHandler restore\n"));
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| 	miSpriteRestoreCursor (pScreen);
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|     }
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| }
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| 
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| static void
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| miSpriteInstallColormap (pMap)
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|     ColormapPtr	pMap;
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| {
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|     ScreenPtr		pScreen = pMap->pScreen;
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|     miSpriteScreenPtr	pPriv;
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| 
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|     pPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						miSpriteScreenKey);
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|     SCREEN_PROLOGUE(pScreen, InstallColormap);
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|     
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|     (*pScreen->InstallColormap) (pMap);
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| 
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|     SCREEN_EPILOGUE(pScreen, InstallColormap);
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| 
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|     pPriv->pInstalledMap = pMap;
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|     if (pPriv->pColormap != pMap)
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|     {
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|     	pPriv->checkPixels = TRUE;
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| 	if (pPriv->isUp)
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| 	    miSpriteRemoveCursor (pScreen);
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|     }
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| }
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| 
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| static void
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| miSpriteStoreColors (pMap, ndef, pdef)
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|     ColormapPtr	pMap;
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|     int		ndef;
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|     xColorItem	*pdef;
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| {
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|     ScreenPtr		pScreen = pMap->pScreen;
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|     miSpriteScreenPtr	pPriv;
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|     int			i;
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|     int			updated;
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|     VisualPtr		pVisual;
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| 
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|     pPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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| 						miSpriteScreenKey);
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|     SCREEN_PROLOGUE(pScreen, StoreColors);
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|     
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|     (*pScreen->StoreColors) (pMap, ndef, pdef);
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| 
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|     SCREEN_EPILOGUE(pScreen, StoreColors);
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| 
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|     if (pPriv->pColormap == pMap)
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|     {
 | |
| 	updated = 0;
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| 	pVisual = pMap->pVisual;
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| 	if (pVisual->class == DirectColor)
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| 	{
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| 	    /* Direct color - match on any of the subfields */
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| 
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| #define MaskMatch(a,b,mask) (((a) & (pVisual->mask)) == ((b) & (pVisual->mask)))
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| 
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| #define UpdateDAC(plane,dac,mask) {\
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|     if (MaskMatch (pPriv->colors[plane].pixel,pdef[i].pixel,mask)) {\
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| 	pPriv->colors[plane].dac = pdef[i].dac; \
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| 	updated = 1; \
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|     } \
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| }
 | |
| 
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| #define CheckDirect(plane) \
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| 	    UpdateDAC(plane,red,redMask) \
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| 	    UpdateDAC(plane,green,greenMask) \
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| 	    UpdateDAC(plane,blue,blueMask)
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| 
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| 	    for (i = 0; i < ndef; i++)
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| 	    {
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| 		CheckDirect (SOURCE_COLOR)
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| 		CheckDirect (MASK_COLOR)
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| 	    }
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| 	}
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| 	else
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| 	{
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| 	    /* PseudoColor/GrayScale - match on exact pixel */
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| 	    for (i = 0; i < ndef; i++)
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| 	    {
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| 	    	if (pdef[i].pixel == pPriv->colors[SOURCE_COLOR].pixel)
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| 	    	{
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| 		    pPriv->colors[SOURCE_COLOR] = pdef[i];
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| 		    if (++updated == 2)
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| 		    	break;
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| 	    	}
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| 	    	if (pdef[i].pixel == pPriv->colors[MASK_COLOR].pixel)
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| 	    	{
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| 		    pPriv->colors[MASK_COLOR] = pdef[i];
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| 		    if (++updated == 2)
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| 		    	break;
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| 	    	}
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| 	    }
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| 	}
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|     	if (updated)
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|     	{
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| 	    pPriv->checkPixels = TRUE;
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| 	    if (pPriv->isUp)
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| 	    	miSpriteRemoveCursor (pScreen);
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|     	}
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|     }
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| }
 | |
| 
 | |
| static void
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| miSpriteFindColors (ScreenPtr pScreen)
 | |
| {
 | |
|     miSpriteScreenPtr	pScreenPriv = (miSpriteScreenPtr)
 | |
| 	dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
 | |
|     CursorPtr		pCursor;
 | |
|     xColorItem		*sourceColor, *maskColor;
 | |
| 
 | |
|     pCursor = pScreenPriv->pCursor;
 | |
|     sourceColor = &pScreenPriv->colors[SOURCE_COLOR];
 | |
|     maskColor = &pScreenPriv->colors[MASK_COLOR];
 | |
|     if (pScreenPriv->pColormap != pScreenPriv->pInstalledMap ||
 | |
| 	!(pCursor->foreRed == sourceColor->red &&
 | |
| 	  pCursor->foreGreen == sourceColor->green &&
 | |
|           pCursor->foreBlue == sourceColor->blue &&
 | |
| 	  pCursor->backRed == maskColor->red &&
 | |
| 	  pCursor->backGreen == maskColor->green &&
 | |
| 	  pCursor->backBlue == maskColor->blue))
 | |
|     {
 | |
| 	pScreenPriv->pColormap = pScreenPriv->pInstalledMap;
 | |
| 	sourceColor->red = pCursor->foreRed;
 | |
| 	sourceColor->green = pCursor->foreGreen;
 | |
| 	sourceColor->blue = pCursor->foreBlue;
 | |
| 	FakeAllocColor (pScreenPriv->pColormap, sourceColor);
 | |
| 	maskColor->red = pCursor->backRed;
 | |
| 	maskColor->green = pCursor->backGreen;
 | |
| 	maskColor->blue = pCursor->backBlue;
 | |
| 	FakeAllocColor (pScreenPriv->pColormap, maskColor);
 | |
| 	/* "free" the pixels right away, don't let this confuse you */
 | |
| 	FakeFreeColor(pScreenPriv->pColormap, sourceColor->pixel);
 | |
| 	FakeFreeColor(pScreenPriv->pColormap, maskColor->pixel);
 | |
|     }
 | |
|     pScreenPriv->checkPixels = FALSE;
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * miPointer interface routines
 | |
|  */
 | |
| 
 | |
| #define SPRITE_PAD  8
 | |
| 
 | |
| static Bool
 | |
| miSpriteRealizeCursor (pScreen, pCursor)
 | |
|     ScreenPtr	pScreen;
 | |
|     CursorPtr	pCursor;
 | |
| {
 | |
|     miSpriteScreenPtr	pScreenPriv;
 | |
| 
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     if (pCursor == pScreenPriv->pCursor)
 | |
| 	pScreenPriv->checkPixels = TRUE;
 | |
|     return (*pScreenPriv->funcs->RealizeCursor) (pScreen, pCursor);
 | |
| }
 | |
| 
 | |
| static Bool
 | |
| miSpriteUnrealizeCursor (pScreen, pCursor)
 | |
|     ScreenPtr	pScreen;
 | |
|     CursorPtr	pCursor;
 | |
| {
 | |
|     miSpriteScreenPtr	pScreenPriv;
 | |
| 
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     return (*pScreenPriv->funcs->UnrealizeCursor) (pScreen, pCursor);
 | |
| }
 | |
| 
 | |
| static void
 | |
| miSpriteSetCursor (pScreen, pCursor, x, y)
 | |
|     ScreenPtr	pScreen;
 | |
|     CursorPtr	pCursor;
 | |
|     int		x;
 | |
|     int		y;
 | |
| {
 | |
|     miSpriteScreenPtr	pScreenPriv;
 | |
| 
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     if (!pCursor)
 | |
|     {
 | |
|     	pScreenPriv->shouldBeUp = FALSE;
 | |
|     	if (pScreenPriv->isUp)
 | |
| 	    miSpriteRemoveCursor (pScreen);
 | |
| 	pScreenPriv->pCursor = 0;
 | |
| 	return;
 | |
|     }
 | |
|     pScreenPriv->shouldBeUp = TRUE;
 | |
|     if (pScreenPriv->x == x &&
 | |
| 	pScreenPriv->y == y &&
 | |
| 	pScreenPriv->pCursor == pCursor &&
 | |
| 	!pScreenPriv->checkPixels)
 | |
|     {
 | |
| 	return;
 | |
|     }
 | |
|     pScreenPriv->x = x;
 | |
|     pScreenPriv->y = y;
 | |
|     pScreenPriv->pCacheWin = NullWindow;
 | |
|     if (pScreenPriv->checkPixels || pScreenPriv->pCursor != pCursor)
 | |
|     {
 | |
| 	pScreenPriv->pCursor = pCursor;
 | |
| 	miSpriteFindColors (pScreen);
 | |
|     }
 | |
|     if (pScreenPriv->isUp) {
 | |
| 	int	sx, sy;
 | |
| 	/*
 | |
| 	 * check to see if the old saved region
 | |
| 	 * encloses the new sprite, in which case we use
 | |
| 	 * the flicker-free MoveCursor primitive.
 | |
| 	 */
 | |
| 	sx = pScreenPriv->x - (int)pCursor->bits->xhot;
 | |
| 	sy = pScreenPriv->y - (int)pCursor->bits->yhot;
 | |
| 	if (sx + (int) pCursor->bits->width >= pScreenPriv->saved.x1 &&
 | |
| 	    sx < pScreenPriv->saved.x2 &&
 | |
| 	    sy + (int) pCursor->bits->height >= pScreenPriv->saved.y1 &&
 | |
| 	    sy < pScreenPriv->saved.y2 &&
 | |
| 	    (int) pCursor->bits->width + (2 * SPRITE_PAD) ==
 | |
| 		pScreenPriv->saved.x2 - pScreenPriv->saved.x1 &&
 | |
| 	    (int) pCursor->bits->height + (2 * SPRITE_PAD) ==
 | |
| 		pScreenPriv->saved.y2 - pScreenPriv->saved.y1
 | |
| 	    )
 | |
| 	{
 | |
| 	    DamageDrawInternal (pScreen, TRUE);
 | |
| 	    miSpriteIsUpFALSE (pScreen, pScreenPriv);
 | |
| 	    if (!(sx >= pScreenPriv->saved.x1 &&
 | |
| 	      	  sx + (int)pCursor->bits->width < pScreenPriv->saved.x2 &&
 | |
| 	      	  sy >= pScreenPriv->saved.y1 &&
 | |
| 	      	  sy + (int)pCursor->bits->height < pScreenPriv->saved.y2))
 | |
| 	    {
 | |
| 		int oldx1, oldy1, dx, dy;
 | |
| 
 | |
| 		oldx1 = pScreenPriv->saved.x1;
 | |
| 		oldy1 = pScreenPriv->saved.y1;
 | |
| 		dx = oldx1 - (sx - SPRITE_PAD);
 | |
| 		dy = oldy1 - (sy - SPRITE_PAD);
 | |
| 		pScreenPriv->saved.x1 -= dx;
 | |
| 		pScreenPriv->saved.y1 -= dy;
 | |
| 		pScreenPriv->saved.x2 -= dx;
 | |
| 		pScreenPriv->saved.y2 -= dy;
 | |
| 		(void) (*pScreenPriv->funcs->ChangeSave) (pScreen,
 | |
| 				pScreenPriv->saved.x1,
 | |
|  				pScreenPriv->saved.y1,
 | |
| 				pScreenPriv->saved.x2 - pScreenPriv->saved.x1,
 | |
| 				pScreenPriv->saved.y2 - pScreenPriv->saved.y1,
 | |
| 				dx, dy);
 | |
| 	    }
 | |
| 	    (void) (*pScreenPriv->funcs->MoveCursor) (pScreen, pCursor,
 | |
| 				  pScreenPriv->saved.x1,
 | |
|  				  pScreenPriv->saved.y1,
 | |
| 				  pScreenPriv->saved.x2 - pScreenPriv->saved.x1,
 | |
| 				  pScreenPriv->saved.y2 - pScreenPriv->saved.y1,
 | |
| 				  sx - pScreenPriv->saved.x1,
 | |
| 				  sy - pScreenPriv->saved.y1,
 | |
| 				  pScreenPriv->colors[SOURCE_COLOR].pixel,
 | |
| 				  pScreenPriv->colors[MASK_COLOR].pixel);
 | |
| 	    miSpriteIsUpTRUE (pScreen, pScreenPriv);
 | |
| 	    DamageDrawInternal (pScreen, FALSE);
 | |
| 	}
 | |
| 	else
 | |
| 	{
 | |
| 	    SPRITE_DEBUG (("SetCursor remove\n"));
 | |
| 	    miSpriteRemoveCursor (pScreen);
 | |
| 	}
 | |
|     }
 | |
|     if (!pScreenPriv->isUp && pScreenPriv->pCursor)
 | |
|     {
 | |
| 	SPRITE_DEBUG (("SetCursor restore\n"));
 | |
| 	miSpriteRestoreCursor (pScreen);
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void
 | |
| miSpriteMoveCursor (pScreen, x, y)
 | |
|     ScreenPtr	pScreen;
 | |
|     int		x, y;
 | |
| {
 | |
|     miSpriteScreenPtr	pScreenPriv;
 | |
| 
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     miSpriteSetCursor (pScreen, pScreenPriv->pCursor, x, y);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * undraw/draw cursor
 | |
|  */
 | |
| 
 | |
| static void
 | |
| miSpriteRemoveCursor (pScreen)
 | |
|     ScreenPtr	pScreen;
 | |
| {
 | |
|     miSpriteScreenPtr   pScreenPriv;
 | |
| 
 | |
|     DamageDrawInternal (pScreen, TRUE);
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     miSpriteIsUpFALSE (pScreen, pScreenPriv);
 | |
|     pScreenPriv->pCacheWin = NullWindow;
 | |
|     if (!(*pScreenPriv->funcs->RestoreUnderCursor) (pScreen,
 | |
| 					 pScreenPriv->saved.x1,
 | |
| 					 pScreenPriv->saved.y1,
 | |
| 					 pScreenPriv->saved.x2 - pScreenPriv->saved.x1,
 | |
| 					 pScreenPriv->saved.y2 - pScreenPriv->saved.y1))
 | |
|     {
 | |
| 	miSpriteIsUpTRUE (pScreen, pScreenPriv);
 | |
|     }
 | |
|     DamageDrawInternal (pScreen, FALSE);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Called from the block handler, restores the cursor
 | |
|  * before waiting for something to do.
 | |
|  */
 | |
| 
 | |
| static void
 | |
| miSpriteRestoreCursor (pScreen)
 | |
|     ScreenPtr	pScreen;
 | |
| {
 | |
|     miSpriteScreenPtr   pScreenPriv;
 | |
|     int			x, y;
 | |
|     CursorPtr		pCursor;
 | |
| 
 | |
|     DamageDrawInternal (pScreen, TRUE);
 | |
|     miSpriteComputeSaved (pScreen);
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     pCursor = pScreenPriv->pCursor;
 | |
|     x = pScreenPriv->x - (int)pCursor->bits->xhot;
 | |
|     y = pScreenPriv->y - (int)pCursor->bits->yhot;
 | |
|     if ((*pScreenPriv->funcs->SaveUnderCursor) (pScreen,
 | |
| 				      pScreenPriv->saved.x1,
 | |
| 				      pScreenPriv->saved.y1,
 | |
| 				      pScreenPriv->saved.x2 - pScreenPriv->saved.x1,
 | |
| 				      pScreenPriv->saved.y2 - pScreenPriv->saved.y1))
 | |
|     {
 | |
| 	if (pScreenPriv->checkPixels)
 | |
| 	    miSpriteFindColors (pScreen);
 | |
| 	if ((*pScreenPriv->funcs->PutUpCursor) (pScreen, pCursor, x, y,
 | |
| 				  pScreenPriv->colors[SOURCE_COLOR].pixel,
 | |
| 				  pScreenPriv->colors[MASK_COLOR].pixel))
 | |
| 	{
 | |
| 	    miSpriteIsUpTRUE (pScreen, pScreenPriv);
 | |
| 	}
 | |
|     }
 | |
|     DamageDrawInternal (pScreen, FALSE);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * compute the desired area of the screen to save
 | |
|  */
 | |
| 
 | |
| static void
 | |
| miSpriteComputeSaved (pScreen)
 | |
|     ScreenPtr	pScreen;
 | |
| {
 | |
|     miSpriteScreenPtr   pScreenPriv;
 | |
|     int		    x, y, w, h;
 | |
|     int		    wpad, hpad;
 | |
|     CursorPtr	    pCursor;
 | |
| 
 | |
|     pScreenPriv = (miSpriteScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 | |
| 						      miSpriteScreenKey);
 | |
|     pCursor = pScreenPriv->pCursor;
 | |
|     x = pScreenPriv->x - (int)pCursor->bits->xhot;
 | |
|     y = pScreenPriv->y - (int)pCursor->bits->yhot;
 | |
|     w = pCursor->bits->width;
 | |
|     h = pCursor->bits->height;
 | |
|     wpad = SPRITE_PAD;
 | |
|     hpad = SPRITE_PAD;
 | |
|     pScreenPriv->saved.x1 = x - wpad;
 | |
|     pScreenPriv->saved.y1 = y - hpad;
 | |
|     pScreenPriv->saved.x2 = pScreenPriv->saved.x1 + w + wpad * 2;
 | |
|     pScreenPriv->saved.y2 = pScreenPriv->saved.y1 + h + hpad * 2;
 | |
| }
 |