152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/* $Xorg: mfbbstore.c,v 1.4 2001/02/09 02:05:18 xorgcvs Exp $ */
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/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
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/*
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Copyright 1987, 1998 The Open Group
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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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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from The Open Group.
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*/
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#include "mfb.h"
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#include "X.h"
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#include "mibstore.h"
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#include "regionstr.h"
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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/*-
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*-----------------------------------------------------------------------
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* mfbSaveAreas --
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* Function called by miSaveAreas to actually fetch the areas to be
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* saved into the backing pixmap. This is very simple to do, since
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* mfbDoBitblt is designed for this very thing. The region to save is
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* already destination-relative and we're given the offset to the
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* window origin, so we have only to create an array of points of the
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* u.l. corners of the boxes in the region translated to the screen
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* coordinate system and fetch the screen pixmap out of its devPrivate
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* field....
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*
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* Results:
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* None.
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*
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* Side Effects:
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* Data are copied from the screen into the pixmap.
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*
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*-----------------------------------------------------------------------
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*/
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void
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mfbSaveAreas(pPixmap, prgnSave, xorg, yorg, pWin)
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PixmapPtr pPixmap; /* Backing pixmap */
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RegionPtr prgnSave; /* Region to save (pixmap-relative) */
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int xorg; /* X origin of region */
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int yorg; /* Y origin of region */
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WindowPtr pWin;
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{
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register DDXPointPtr pPt;
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DDXPointPtr pPtsInit;
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register BoxPtr pBox;
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register int numRects;
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numRects = REGION_NUM_RECTS(prgnSave);
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pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects * sizeof(DDXPointRec));
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if (!pPtsInit)
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return;
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pBox = REGION_RECTS(prgnSave);
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pPt = pPtsInit;
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while (numRects--)
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{
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pPt->x = pBox->x1 + xorg;
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pPt->y = pBox->y1 + yorg;
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pPt++;
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pBox++;
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}
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mfbDoBitblt((DrawablePtr)pPixmap->drawable.pScreen->devPrivate,
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(DrawablePtr)pPixmap,
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GXcopy,
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prgnSave,
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pPtsInit);
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DEALLOCATE_LOCAL(pPtsInit);
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}
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/*-
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*-----------------------------------------------------------------------
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* mfbRestoreAreas --
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* Function called by miRestoreAreas to actually fetch the areas to be
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* restored from the backing pixmap. This is very simple to do, since
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* mfbDoBitblt is designed for this very thing. The region to restore is
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* already destination-relative and we're given the offset to the
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* window origin, so we have only to create an array of points of the
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* u.l. corners of the boxes in the region translated to the pixmap
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* coordinate system and fetch the screen pixmap out of its devPrivate
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* field....
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*
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* Results:
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* None.
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*
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* Side Effects:
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* Data are copied from the pixmap into the screen.
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*
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*-----------------------------------------------------------------------
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*/
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void
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mfbRestoreAreas(pPixmap, prgnRestore, xorg, yorg, pWin)
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PixmapPtr pPixmap; /* Backing pixmap */
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RegionPtr prgnRestore; /* Region to restore (screen-relative)*/
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int xorg; /* X origin of window */
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int yorg; /* Y origin of window */
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WindowPtr pWin;
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{
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register DDXPointPtr pPt;
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DDXPointPtr pPtsInit;
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register BoxPtr pBox;
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register int numRects;
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numRects = REGION_NUM_RECTS(prgnRestore);
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pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects*sizeof(DDXPointRec));
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if (!pPtsInit)
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return;
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pBox = REGION_RECTS(prgnRestore);
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pPt = pPtsInit;
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while (numRects--)
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{
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pPt->x = pBox->x1 - xorg;
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pPt->y = pBox->y1 - yorg;
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pPt++;
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pBox++;
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}
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mfbDoBitblt((DrawablePtr)pPixmap,
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(DrawablePtr)pPixmap->drawable.pScreen->devPrivate,
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GXcopy,
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prgnRestore,
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pPtsInit);
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DEALLOCATE_LOCAL(pPtsInit);
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}
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