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/*
* Copyright © 2004 David Reveman
*
* 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
* David Reveman not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* David Reveman makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL DAVID REVEMAN 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.
*
* Author: David Reveman <davidr@novell.com>
*/
#include "xgl.h"
#define XGL_BSTORE_FALLBACK_PROLOGUE(pDrawable, func) \
xglSyncDamageBoxBits (pDrawable); \
XGL_SCREEN_UNWRAP (func)
#define XGL_BSTORE_FALLBACK_EPILOGUE(pDrawable, func, xglfunc) \
XGL_SCREEN_WRAP (func, xglfunc); \
xglAddCurrentSurfaceDamage (pDrawable)
/*
* The follwong functions are not yet tested so we can assume that they
* are both broken.
*/
void
xglSaveAreas (PixmapPtr pPixmap,
RegionPtr prgnSave,
int xorg,
int yorg,
WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
BoxRec box;
XGL_SCREEN_PRIV (pScreen);
XGL_PIXMAP_PRIV (pPixmap);
box = *(REGION_EXTENTS (pScreen, prgnSave));
pPixmapPriv->damageBox = box;
if (xglCopy (&pWin->drawable,
&pPixmap->drawable,
xorg, yorg,
REGION_RECTS (prgnSave),
REGION_NUM_RECTS (prgnSave)))
{
xglAddCurrentBitDamage (&pPixmap->drawable);
return;
}
box.x1 += xorg;
box.y1 += yorg;
box.x2 += xorg;
box.y2 += yorg;
if (!xglSyncBits (&pWin->drawable, &box))
FatalError (XGL_SW_FAILURE_STRING);
XGL_BSTORE_FALLBACK_PROLOGUE (&pPixmap->drawable,
BackingStoreFuncs.SaveAreas);
(*pScreen->BackingStoreFuncs.SaveAreas) (pPixmap, prgnSave,
xorg, yorg, pWin);
XGL_BSTORE_FALLBACK_EPILOGUE (&pPixmap->drawable,
BackingStoreFuncs.SaveAreas,
xglSaveAreas);
}
void
xglRestoreAreas (PixmapPtr pPixmap,
RegionPtr prgnRestore,
int xorg,
int yorg,
WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
BoxPtr pExt;
BoxRec box;
XGL_SCREEN_PRIV (pScreen);
if (xglCopy (&pPixmap->drawable,
&pWin->drawable,
-xorg, -yorg,
REGION_RECTS (prgnRestore),
REGION_NUM_RECTS (prgnRestore)))
{
xglAddCurrentBitDamage (&pPixmap->drawable);
return;
}
pExt = REGION_EXTENTS (pScreen, prgnRestore);
box.x1 = pExt->x1 - xorg;
box.y1 = pExt->y1 - yorg;
box.x2 = pExt->x2 - xorg;
box.y2 = pExt->y2 - yorg;
if (!xglSyncBits (&pPixmap->drawable, &box))
FatalError (XGL_SW_FAILURE_STRING);
XGL_BSTORE_FALLBACK_PROLOGUE (&pWin->drawable,
BackingStoreFuncs.RestoreAreas);
(*pScreen->BackingStoreFuncs.RestoreAreas) (pPixmap, prgnRestore,
xorg, yorg, pWin);
XGL_BSTORE_FALLBACK_EPILOGUE (&pWin->drawable,
BackingStoreFuncs.RestoreAreas,
xglRestoreAreas);
}
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