xenocara/xserver/fb/fbwindow.c

/*
 * Copyright © 1998 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <stdlib.h>

#include "fb.h"

Bool
fbCreateWindow(WindowPtr pWin)
{
    dixSetPrivate(&pWin->devPrivates, fbGetWinPrivateKey(),
		  fbGetScreenPixmap(pWin->drawable.pScreen));
    if (pWin->drawable.bitsPerPixel == 32)
	pWin->drawable.bitsPerPixel = fbGetScreenPrivate(pWin->drawable.pScreen)->win32bpp;
    return TRUE;
}

Bool
fbDestroyWindow(WindowPtr pWin)
{
    return TRUE;
}

Bool
fbMapWindow(WindowPtr pWindow)
{
    return TRUE;
}

Bool
fbPositionWindow(WindowPtr pWin, int x, int y)
{
    return TRUE;
}

Bool
fbUnmapWindow(WindowPtr pWindow)
{
    return TRUE;
}

void
fbCopyWindowProc (DrawablePtr	pSrcDrawable,
		  DrawablePtr	pDstDrawable,
		  GCPtr		pGC,
		  BoxPtr	pbox,
		  int		nbox,
		  int		dx,
		  int		dy,
		  Bool		reverse,
		  Bool		upsidedown,
		  Pixel		bitplane,
		  void		*closure)
{
    FbBits	*src;
    FbStride	srcStride;
    int		srcBpp;
    int		srcXoff, srcYoff;
    FbBits	*dst;
    FbStride	dstStride;
    int		dstBpp;
    int		dstXoff, dstYoff;
    
    fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
    fbGetDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
    
    while (nbox--)
    {
	fbBlt (src + (pbox->y1 + dy + srcYoff) * srcStride,
	       srcStride,
	       (pbox->x1 + dx + srcXoff) * srcBpp,
    
	       dst + (pbox->y1 + dstYoff) * dstStride,
	       dstStride,
	       (pbox->x1 + dstXoff) * dstBpp,
    
	       (pbox->x2 - pbox->x1) * dstBpp,
	       (pbox->y2 - pbox->y1),
    
	       GXcopy,
	       FB_ALLONES,
	       dstBpp,
    
	       reverse,
	       upsidedown);
	pbox++;
    }

    fbFinishAccess (pDstDrawable);
    fbFinishAccess (pSrcDrawable);
}

void
fbCopyWindow(WindowPtr	    pWin, 
	     DDXPointRec    ptOldOrg, 
	     RegionPtr	    prgnSrc)
{
    RegionRec	rgnDst;
    int		dx, dy;

    PixmapPtr	pPixmap = fbGetWindowPixmap (pWin);
    DrawablePtr	pDrawable = &pPixmap->drawable;

    dx = ptOldOrg.x - pWin->drawable.x;
    dy = ptOldOrg.y - pWin->drawable.y;
    RegionTranslate(prgnSrc, -dx, -dy);

    RegionNull(&rgnDst);
    
    RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc);

#ifdef COMPOSITE
    if (pPixmap->screen_x || pPixmap->screen_y)
	RegionTranslate(&rgnDst,
			  -pPixmap->screen_x, -pPixmap->screen_y);
#endif

    miCopyRegion (pDrawable, pDrawable,
		  0,
		  &rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
    
    RegionUninit(&rgnDst);
    fbValidateDrawable (&pWin->drawable);
}

static void
fbFixupWindowPixmap(DrawablePtr pDrawable, PixmapPtr *ppPixmap)
{
    PixmapPtr pPixmap = *ppPixmap;

    if (pPixmap->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
    {
	pPixmap = fb24_32ReformatTile (pPixmap, pDrawable->bitsPerPixel);
	if (!pPixmap)
	    return;
	(*pDrawable->pScreen->DestroyPixmap) (*ppPixmap);
	*ppPixmap = pPixmap;
    }
    if (FbEvenTile (pPixmap->drawable.width *
		    pPixmap->drawable.bitsPerPixel))
	fbPadPixmap (pPixmap);
}

Bool
fbChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
{
    if (mask & CWBackPixmap)
    {
	if (pWin->backgroundState == BackgroundPixmap)
	    fbFixupWindowPixmap(&pWin->drawable, &pWin->background.pixmap);
    }
    if (mask & CWBorderPixmap)
    {
	if (pWin->borderIsPixel == FALSE)
	    fbFixupWindowPixmap(&pWin->drawable, &pWin->border.pixmap);
    }
    return TRUE;
}

void
fbFillRegionSolid (DrawablePtr	pDrawable,
		   RegionPtr	pRegion,
		   FbBits	and,
		   FbBits	xor)
{
    FbBits	*dst;
    FbStride	dstStride;
    int		dstBpp;
    int		dstXoff, dstYoff;
    int		n = RegionNumRects(pRegion);
    BoxPtr	pbox = RegionRects(pRegion);

#ifndef FB_ACCESS_WRAPPER
    int try_mmx = 0;
    if (!and)
        try_mmx = 1;
#endif

    fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
    
    while (n--)
    {
#ifndef FB_ACCESS_WRAPPER
	if (!try_mmx || !pixman_fill ((uint32_t *)dst, dstStride, dstBpp,
				      pbox->x1 + dstXoff, pbox->y1 + dstYoff,
				      (pbox->x2 - pbox->x1),
				      (pbox->y2 - pbox->y1),
				      xor))
	{
#endif
	    fbSolid (dst + (pbox->y1 + dstYoff) * dstStride,
		     dstStride,
		     (pbox->x1 + dstXoff) * dstBpp,
		     dstBpp,
		     (pbox->x2 - pbox->x1) * dstBpp,
		     pbox->y2 - pbox->y1,
		     and, xor);
#ifndef FB_ACCESS_WRAPPER
	}
#endif
	fbValidateDrawable (pDrawable);
	pbox++;
    }
    
    fbFinishAccess (pDrawable);
}