/* $XFree86: xc/programs/Xserver/cfb/cfbscrinit.c,v 1.19 2001/01/17 22:36:36 dawes Exp $ */
/************************************************************
Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.

                    All Rights Reserved

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software  and  its documentation for any purpose and without
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not be used in advertising or publicity pertaining to 
distribution  of  the software  without specific prior 
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SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
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/* $Xorg: cfbscrinit.c,v 1.3 2000/08/17 19:48:15 cpqbld Exp $ */

#include "X.h"
#include "Xmd.h"
#include "servermd.h"
#include "scrnintstr.h"
#include "pixmapstr.h"
#include "resource.h"
#include "colormap.h"
#include "colormapst.h"
#include "cfb.h"
#include "mi.h"
#include "mistruct.h"
#include "dix.h"
#include "cfbmskbits.h"
#include "mibstore.h"

BSFuncRec cfbBSFuncRec = {
    cfbSaveAreas,
    cfbRestoreAreas,
    (BackingStoreSetClipmaskRgnProcPtr) 0,
    (BackingStoreGetImagePixmapProcPtr) 0,
    (BackingStoreGetSpansPixmapProcPtr) 0,
};

Bool
cfbCloseScreen (index, pScreen)
    int		index;
    ScreenPtr	pScreen;
{
    int	    d;
    DepthPtr	depths = pScreen->allowedDepths;

    for (d = 0; d < pScreen->numDepths; d++)
	xfree (depths[d].vids);
    xfree (depths);
    xfree (pScreen->visuals);
#ifdef CFB_NEED_SCREEN_PRIVATE
    xfree (pScreen->devPrivates[cfbScreenPrivateIndex].ptr);
#else
    xfree (pScreen->devPrivate);
#endif
    return TRUE;
}

static void DestroyColormapNoop(
        ColormapPtr pColormap)
{
    /* NOOP */
}

static void StoreColorsNoop(
        ColormapPtr pColormap,
        int ndef,
        xColorItem * pdef)
{
    /* NOOP */
}

Bool
cfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
{
    if (!cfbAllocatePrivates(pScreen, (int *) 0, (int *) 0))
	return FALSE;
    pScreen->defColormap = FakeClientID(0);
    /* let CreateDefColormap do whatever it wants for pixels */ 
    pScreen->blackPixel = pScreen->whitePixel = (Pixel) 0;
    pScreen->QueryBestSize = mfbQueryBestSize;
    /* SaveScreen */
    pScreen->GetImage = cfbGetImage;
    pScreen->GetSpans = cfbGetSpans;
    pScreen->CreateWindow = cfbCreateWindow;
    pScreen->DestroyWindow = cfbDestroyWindow;
    pScreen->PositionWindow = cfbPositionWindow;
    pScreen->ChangeWindowAttributes = cfbChangeWindowAttributes;
    pScreen->RealizeWindow = cfbMapWindow;
    pScreen->UnrealizeWindow = cfbUnmapWindow;
    pScreen->PaintWindowBackground = cfbPaintWindow;
    pScreen->PaintWindowBorder = cfbPaintWindow;
    pScreen->CopyWindow = cfbCopyWindow;
    pScreen->CreatePixmap = cfbCreatePixmap;
    pScreen->DestroyPixmap = cfbDestroyPixmap;
    pScreen->RealizeFont = mfbRealizeFont;
    pScreen->UnrealizeFont = mfbUnrealizeFont;
    pScreen->CreateGC = cfbCreateGC;
    pScreen->CreateColormap = cfbInitializeColormap;
    pScreen->DestroyColormap = DestroyColormapNoop;
    pScreen->InstallColormap = cfbInstallColormap;
    pScreen->UninstallColormap = cfbUninstallColormap;
    pScreen->ListInstalledColormaps = cfbListInstalledColormaps;
    pScreen->StoreColors = StoreColorsNoop;
    pScreen->ResolveColor = cfbResolveColor;
    pScreen->BitmapToRegion = mfbPixmapToRegion;

    mfbRegisterCopyPlaneProc (pScreen, cfbCopyPlane);
    return TRUE;
}

#ifdef CFB_NEED_SCREEN_PRIVATE
Bool
cfbCreateScreenResources(pScreen)
    ScreenPtr pScreen;
{
    Bool retval;

    pointer oldDevPrivate = pScreen->devPrivate;
    pScreen->devPrivate = pScreen->devPrivates[cfbScreenPrivateIndex].ptr;
    retval = miCreateScreenResources(pScreen);
    pScreen->devPrivates[cfbScreenPrivateIndex].ptr = pScreen->devPrivate;
    pScreen->devPrivate = oldDevPrivate;
    return retval;
}
#endif

Bool
cfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
{
#ifdef CFB_NEED_SCREEN_PRIVATE
    pointer oldDevPrivate;
#endif
    VisualPtr	visuals;
    DepthPtr	depths;
    int		nvisuals;
    int		ndepths;
    int		rootdepth;
    VisualID	defaultVisual;

    rootdepth = 0;
    if (!cfbInitVisuals (&visuals, &depths, &nvisuals, &ndepths, &rootdepth,
			 &defaultVisual,((unsigned long)1<<(PSZ-1)), 8))
	return FALSE;
#ifdef CFB_NEED_SCREEN_PRIVATE
    oldDevPrivate = pScreen->devPrivate;
#endif
    if (! miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
			rootdepth, ndepths, depths,
			defaultVisual, nvisuals, visuals))
	return FALSE;
    /* overwrite miCloseScreen with our own */
    pScreen->CloseScreen = cfbCloseScreen;
#ifdef CFB_NEED_SCREEN_PRIVATE
    pScreen->CreateScreenResources = cfbCreateScreenResources;
    pScreen->devPrivates[cfbScreenPrivateIndex].ptr = pScreen->devPrivate;
    pScreen->devPrivate = oldDevPrivate;
#endif
    pScreen->BackingStoreFuncs = cfbBSFuncRec;
    pScreen->GetScreenPixmap = cfbGetScreenPixmap;
    pScreen->SetScreenPixmap = cfbSetScreenPixmap;
    return TRUE;
}

/* dts * (inch/dot) * (25.4 mm / inch) = mm */
Bool
cfbScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
{
    if (!cfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width))
	return FALSE;
    return cfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width);
}

PixmapPtr
cfbGetScreenPixmap(pScreen)
    ScreenPtr pScreen;
{
#ifdef CFB_NEED_SCREEN_PRIVATE
    return (PixmapPtr)pScreen->devPrivates[cfbScreenPrivateIndex].ptr;
#else
    return (PixmapPtr)pScreen->devPrivate;
#endif
}

void
cfbSetScreenPixmap(pPix)
    PixmapPtr pPix;
{
#ifdef CFB_NEED_SCREEN_PRIVATE
    if (pPix)
	pPix->drawable.pScreen->devPrivates[cfbScreenPrivateIndex].ptr =
	    (pointer)pPix;
#else
    if (pPix)
	pPix->drawable.pScreen->devPrivate = (pointer)pPix;
#endif
}
