329 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			329 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			C
		
	
	
	
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xmd.h>
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#include "misc.h"
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#include "servermd.h"
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "resource.h"
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#include "colormap.h"
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#include "colormapst.h"
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#define PSZ 8
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#include "cfb.h"
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#undef PSZ
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#include "cfb32.h"
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#include "cfb8_32.h"
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#include "mi.h"
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#include "micmap.h"
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#include "mistruct.h"
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#include "dix.h"
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#include "mibstore.h"
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#include "mioverlay.h"
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#include "xf86.h"
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#include "xf86str.h"
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#include "globals.h"
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/* CAUTION:  We require that cfb8 and cfb32 were NOT 
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	compiled with CFB_NEED_SCREEN_PRIVATE */
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static BSFuncRec cfb8_32BSFuncRec = {
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    cfb8_32SaveAreas,
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    cfb8_32RestoreAreas,
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    (BackingStoreSetClipmaskRgnProcPtr) 0,
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    (BackingStoreGetImagePixmapProcPtr) 0,
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    (BackingStoreGetSpansPixmapProcPtr) 0,
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};
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int cfb8_32GCPrivateIndex;
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int cfb8_32GetGCPrivateIndex(void) { return cfb8_32GCPrivateIndex; }
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int cfb8_32ScreenPrivateIndex;
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int cfb8_32GetScreenPrivateIndex(void) { return cfb8_32ScreenPrivateIndex; }
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static unsigned long cfb8_32Generation = 0;
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static Bool
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cfb8_32AllocatePrivates(ScreenPtr pScreen)
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{
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   cfb8_32ScreenPtr pScreenPriv;
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   if(cfb8_32Generation != serverGeneration) {
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	if(((cfb8_32GCPrivateIndex = AllocateGCPrivateIndex()) < 0) ||
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	    ((cfb8_32ScreenPrivateIndex = AllocateScreenPrivateIndex()) < 0))
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	    return FALSE;
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	cfb8_32Generation = serverGeneration;
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   }
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   if (!(pScreenPriv = xalloc(sizeof(cfb8_32ScreenRec))))
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        return FALSE;
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   pScreen->devPrivates[cfb8_32ScreenPrivateIndex].ptr = (pointer)pScreenPriv;
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   /* All cfb will have the same GC and Window private indicies */
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   if(!mfbAllocatePrivates(pScreen,&cfbWindowPrivateIndex, &cfbGCPrivateIndex))
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	return FALSE;
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   /* The cfb indicies are the mfb indicies. Reallocating them resizes them */ 
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   if(!AllocateWindowPrivate(pScreen,cfbWindowPrivateIndex,sizeof(cfbPrivWin)))
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	return FALSE;
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   if(!AllocateGCPrivate(pScreen, cfbGCPrivateIndex, sizeof(cfbPrivGC)))
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        return FALSE;
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   if(!AllocateGCPrivate(pScreen, cfb8_32GCPrivateIndex, sizeof(cfb8_32GCRec)))
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        return FALSE;
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   return TRUE;
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}
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static void DestroyColormapNoop(
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        ColormapPtr pColormap)
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{
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    /* NOOP */
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}
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static void StoreColorsNoop(
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        ColormapPtr pColormap,
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        int ndef,
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        xColorItem * pdef)
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{
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    /* NOOP */
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}
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static Bool
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cfb8_32SetupScreen(
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    ScreenPtr pScreen,
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    pointer pbits,		/* pointer to screen bitmap */
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    int xsize, int ysize,	/* in pixels */
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    int dpix, int dpiy,		/* dots per inch */
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    int width			/* pixel width of frame buffer */
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){
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    if (!cfb8_32AllocatePrivates(pScreen))
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	return FALSE;
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    pScreen->defColormap = FakeClientID(0);
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    /* let CreateDefColormap do whatever it wants for pixels */ 
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    pScreen->blackPixel = pScreen->whitePixel = (Pixel) 0;
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    pScreen->QueryBestSize = mfbQueryBestSize;
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    /* SaveScreen */
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    pScreen->GetImage = cfb8_32GetImage;
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    pScreen->GetSpans = cfb8_32GetSpans;
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    pScreen->CreateWindow = cfb8_32CreateWindow;
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    pScreen->DestroyWindow = cfb8_32DestroyWindow;	
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    pScreen->PositionWindow = cfb8_32PositionWindow;
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    pScreen->ChangeWindowAttributes = cfb8_32ChangeWindowAttributes;
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    pScreen->RealizeWindow = cfb32MapWindow;			/* OK */
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    pScreen->UnrealizeWindow = cfb32UnmapWindow;		/* OK */
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    pScreen->PaintWindowBackground = cfb8_32PaintWindow;
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    pScreen->PaintWindowBorder = cfb8_32PaintWindow;
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    pScreen->CopyWindow = cfb8_32CopyWindow;
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    pScreen->CreatePixmap = cfb32CreatePixmap;			/* OK */
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    pScreen->DestroyPixmap = cfb32DestroyPixmap; 		/* OK */
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    pScreen->RealizeFont = mfbRealizeFont;
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    pScreen->UnrealizeFont = mfbUnrealizeFont;
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    pScreen->CreateGC = cfb8_32CreateGC;
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    pScreen->CreateColormap = miInitializeColormap;
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    pScreen->DestroyColormap = DestroyColormapNoop;
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    pScreen->InstallColormap = miInstallColormap;
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    pScreen->UninstallColormap = miUninstallColormap;
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    pScreen->ListInstalledColormaps = miListInstalledColormaps;
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    pScreen->StoreColors = StoreColorsNoop;
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    pScreen->ResolveColor = miResolveColor;
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    pScreen->BitmapToRegion = mfbPixmapToRegion;
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    mfbRegisterCopyPlaneProc (pScreen, cfb8_32CopyPlane);
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    return TRUE;
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}
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typedef struct {
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    pointer pbits; 
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    int width;   
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} miScreenInitParmsRec, *miScreenInitParmsPtr;
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static Bool
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cfb8_32CreateScreenResources(ScreenPtr pScreen)
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{
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    miScreenInitParmsPtr pScrInitParms;
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    int pitch;
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    Bool retval;
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    /* get the pitch before mi destroys it */
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    pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;
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    pitch = pScrInitParms->width << 2;
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    if((retval = miCreateScreenResources(pScreen))) {
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	/* fix the screen pixmap */
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	PixmapPtr pPix = (PixmapPtr)pScreen->devPrivate;
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	pPix->drawable.bitsPerPixel = 32;
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	pPix->drawable.depth = 8;
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	pPix->devKind = pitch;
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    }
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    return retval;
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}
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static Bool
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cfb8_32CloseScreen (int i, ScreenPtr pScreen)
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{
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    cfb8_32ScreenPtr pScreenPriv = CFB8_32_GET_SCREEN_PRIVATE(pScreen);
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    if(pScreenPriv->visualData)
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	xfree(pScreenPriv->visualData);
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    xfree((pointer) pScreenPriv);
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    pScreen->devPrivates[cfb8_32ScreenPrivateIndex].ptr = NULL;
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    return(cfb32CloseScreen(i, pScreen));
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}
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static void
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cfb8_32TransFunc(
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    ScreenPtr pScreen,
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    int nbox,
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    BoxPtr pbox
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){
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    cfb8_32FillBoxSolid8(&(WindowTable[pScreen->myNum]->drawable), 
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			nbox, pbox, xf86Screens[pScreen->myNum]->colorKey);
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}
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static Bool
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cfb8_32InOverlayFunc(WindowPtr pWin)
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{
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   return (pWin->drawable.depth == 8);
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}
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static Bool
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cfb8_32FinishScreenInit(
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    ScreenPtr pScreen,
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    pointer pbits,		/* pointer to screen bitmap */
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    int xsize, int ysize,	/* in pixels */
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    int dpix, int dpiy,		/* dots per inch */
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    int width			/* pixel width of frame buffer */
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){
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    VisualPtr	visuals;
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    DepthPtr	depths;
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    int		nvisuals;
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    int		ndepths;
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    int		rootdepth;
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    VisualID	defaultVisual;
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    rootdepth = 0;
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    if (!miInitVisuals (&visuals, &depths, &nvisuals, &ndepths, &rootdepth,
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			 &defaultVisual,((unsigned long)1<<(32-1)), 8, -1))
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	return FALSE;
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    if (! miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
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			rootdepth, ndepths, depths,
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			defaultVisual, nvisuals, visuals))
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	return FALSE;
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    pScreen->BackingStoreFuncs = cfb8_32BSFuncRec;
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    pScreen->CreateScreenResources = cfb8_32CreateScreenResources;
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    pScreen->CloseScreen = cfb8_32CloseScreen;
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    pScreen->GetScreenPixmap = cfb32GetScreenPixmap; 	/* OK */
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    pScreen->SetScreenPixmap = cfb32SetScreenPixmap;	/* OK */
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    if (! miInitOverlay(pScreen, cfb8_32InOverlayFunc, cfb8_32TransFunc))
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	return FALSE;
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    return TRUE;
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}
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static void
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cfb8_32EnableDisableFBAccess (
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    int index,
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    Bool enable
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){
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    ScreenPtr pScreen = screenInfo.screens[index];
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    cfb8_32ScreenPtr pScreenPriv = CFB8_32_GET_SCREEN_PRIVATE(pScreen);
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    miOverlaySetRootClip(pScreen, enable);
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    (*pScreenPriv->EnableDisableFBAccess) (index, enable);
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}
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static Atom overlayVisualsAtom;
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typedef struct {
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    CARD32 overlay_visual;
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    CARD32 transparent_type;
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    CARD32 value;
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    CARD32 layer;
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} overlayVisualRec;
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static void
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cfb8_32SetupVisuals (ScreenPtr pScreen)
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{
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    cfb8_32ScreenPtr pScreenPriv = CFB8_32_GET_SCREEN_PRIVATE(pScreen);
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    char atomString[] = {"SERVER_OVERLAY_VISUALS"};
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    overlayVisualRec *overlayVisuals;
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    VisualID *visuals = NULL;
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    int numVisuals = 0;
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    DepthPtr pDepth = pScreen->allowedDepths;
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    int numDepths = pScreen->numDepths;
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    int i;
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    /* find depth 8 visuals */
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    for(i = 0; i < numDepths; i++, pDepth++) {
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	if(pDepth->depth == 8) {
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	    numVisuals = pDepth->numVids;
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	    visuals = pDepth->vids;
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	    break;
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	}
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    }
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    if(!numVisuals || !visuals) {
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	ErrorF("No overlay visuals found!\n");
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	return;
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    }
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    if(!(overlayVisuals = xalloc(numVisuals * sizeof(overlayVisualRec))))
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	return;
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    for(i = 0; i < numVisuals; i++) {
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	overlayVisuals[i].overlay_visual = visuals[i];
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	overlayVisuals[i].transparent_type = 1; /* transparent pixel */
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	overlayVisuals[i].value = pScreenPriv->key;
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	overlayVisuals[i].layer = 1;
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    }    
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    overlayVisualsAtom = MakeAtom(atomString, sizeof(atomString) - 1, TRUE);
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    xf86RegisterRootWindowProperty(pScreen->myNum, overlayVisualsAtom,
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			overlayVisualsAtom, 32, numVisuals * 4, overlayVisuals);
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    pScreenPriv->visualData = (pointer)overlayVisuals;
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}
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Bool
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cfb8_32ScreenInit(
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    ScreenPtr pScreen,
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    pointer pbits,		/* pointer to screen bitmap */
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    int xsize, int ysize,	/* in pixels */
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    int dpix, int dpiy,		/* dots per inch */
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    int w			/* pixel width of frame buffer */
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){
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    cfb8_32ScreenPtr pScreenPriv;
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    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
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    if (!cfb8_32SetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, w))
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	return FALSE;
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    pScreenPriv = CFB8_32_GET_SCREEN_PRIVATE(pScreen);
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    pScreenPriv->key = pScrn->colorKey;
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    pScreenPriv->visualData = NULL;
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    pScreenPriv->EnableDisableFBAccess = pScrn->EnableDisableFBAccess;
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    pScrn->EnableDisableFBAccess = cfb8_32EnableDisableFBAccess;
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    if(cfb8_32FinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, w))
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    { 
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	cfb8_32SetupVisuals(pScreen); 
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	return TRUE;
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    }
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    return FALSE;
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}
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