Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / programs / Xserver / mfb / mfbbstore.c

diff --git a/Xserver/programs/Xserver/mfb/mfbbstore.c b/Xserver/programs/Xserver/mfb/mfbbstore.c
new file mode 100644 (file)
index 0000000..536525d
--- /dev/null
+++ b/Xserver/programs/Xserver/mfb/mfbbstore.c
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+/* $XConsortium: mfbbstore.c,v 5.7 94/04/17 20:28:18 dpw Exp $ */
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/*
+
+Copyright (c) 1987  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the X Consortium.
+
+*/
+
+#include    "mfb.h"
+#include    "X.h"
+#include    "mibstore.h"
+#include    "regionstr.h"
+#include    "scrnintstr.h"
+#include    "pixmapstr.h"
+#include    "windowstr.h"
+
+/*-
+ *-----------------------------------------------------------------------
+ * mfbSaveAreas --
+ *     Function called by miSaveAreas to actually fetch the areas to be
+ *     saved into the backing pixmap. This is very simple to do, since
+ *     mfbDoBitblt is designed for this very thing. The region to save is
+ *     already destination-relative and we're given the offset to the
+ *     window origin, so we have only to create an array of points of the
+ *     u.l. corners of the boxes in the region translated to the screen
+ *     coordinate system and fetch the screen pixmap out of its devPrivate
+ *     field....
+ *
+ * Results:
+ *     None.
+ *
+ * Side Effects:
+ *     Data are copied from the screen into the pixmap.
+ *
+ *-----------------------------------------------------------------------
+ */
+void
+mfbSaveAreas(pPixmap, prgnSave, xorg, yorg, pWin)
+    PixmapPtr          pPixmap;        /* Backing pixmap */
+    RegionPtr          prgnSave;       /* Region to save (pixmap-relative) */
+    int                        xorg;           /* X origin of region */
+    int                        yorg;           /* Y origin of region */
+    WindowPtr          pWin;
+{
+    register DDXPointPtr pPt;
+    DDXPointPtr                pPtsInit;
+    register BoxPtr    pBox;
+    register int       numRects;
+    
+    numRects = REGION_NUM_RECTS(prgnSave);
+    pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects * sizeof(DDXPointRec));
+    if (!pPtsInit)
+       return;
+    
+    pBox = REGION_RECTS(prgnSave);
+    pPt = pPtsInit;
+    while (numRects--)
+    {
+       pPt->x = pBox->x1 + xorg;
+       pPt->y = pBox->y1 + yorg;
+       pPt++;
+       pBox++;
+    }
+
+    mfbDoBitblt((DrawablePtr)pPixmap->drawable.pScreen->devPrivate,
+               (DrawablePtr)pPixmap,
+               GXcopy,
+               prgnSave,
+               pPtsInit);
+
+    DEALLOCATE_LOCAL(pPtsInit);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * mfbRestoreAreas --
+ *     Function called by miRestoreAreas to actually fetch the areas to be
+ *     restored from the backing pixmap. This is very simple to do, since
+ *     mfbDoBitblt is designed for this very thing. The region to restore is
+ *     already destination-relative and we're given the offset to the
+ *     window origin, so we have only to create an array of points of the
+ *     u.l. corners of the boxes in the region translated to the pixmap
+ *     coordinate system and fetch the screen pixmap out of its devPrivate
+ *     field....
+ *
+ * Results:
+ *     None.
+ *
+ * Side Effects:
+ *     Data are copied from the pixmap into the screen.
+ *
+ *-----------------------------------------------------------------------
+ */
+void
+mfbRestoreAreas(pPixmap, prgnRestore, xorg, yorg, pWin)
+    PixmapPtr          pPixmap;        /* Backing pixmap */
+    RegionPtr          prgnRestore;    /* Region to restore (screen-relative)*/
+    int                        xorg;           /* X origin of window */
+    int                        yorg;           /* Y origin of window */
+    WindowPtr          pWin;
+{
+    register DDXPointPtr pPt;
+    DDXPointPtr                pPtsInit;
+    register BoxPtr    pBox;
+    register int       numRects;
+    
+    numRects = REGION_NUM_RECTS(prgnRestore);
+    pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects*sizeof(DDXPointRec));
+    if (!pPtsInit)
+       return;
+    
+    pBox = REGION_RECTS(prgnRestore);
+    pPt = pPtsInit;
+    while (numRects--)
+    {
+       pPt->x = pBox->x1 - xorg;
+       pPt->y = pBox->y1 - yorg;
+       pPt++;
+       pBox++;
+    }
+
+    mfbDoBitblt((DrawablePtr)pPixmap,
+               (DrawablePtr)pPixmap->drawable.pScreen->devPrivate,
+               GXcopy,
+               prgnRestore,
+               pPtsInit);
+
+    DEALLOCATE_LOCAL(pPtsInit);
+}