aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/programs/Xserver/cfb/cfbbstore.c
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/programs/Xserver/cfb/cfbbstore.c')
-rw-r--r--nx-X11/programs/Xserver/cfb/cfbbstore.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/cfb/cfbbstore.c b/nx-X11/programs/Xserver/cfb/cfbbstore.c
new file mode 100644
index 000000000..64adc4050
--- /dev/null
+++ b/nx-X11/programs/Xserver/cfb/cfbbstore.c
@@ -0,0 +1,145 @@
+/* $XFree86: xc/programs/Xserver/cfb/cfbbstore.c,v 1.4 1999/01/31 12:21:41 dawes Exp $ */
+/*-
+ * cfbbstore.c --
+ * Functions required by the backing-store implementation in MI.
+ *
+ * Copyright (c) 1987 by the Regents of the University of California
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies. The University of California
+ * makes no representations about the suitability of this
+ * software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ *
+ *
+ */
+/* $Xorg: cfbbstore.c,v 1.3 2000/08/17 19:48:13 cpqbld Exp $ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "cfb.h"
+#include <X11/X.h>
+#include "mibstore.h"
+#include "regionstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "windowstr.h"
+
+/*-
+ *-----------------------------------------------------------------------
+ * cfbSaveAreas --
+ * Function called by miSaveAreas to actually fetch the areas to be
+ * saved into the backing pixmap. This is very simple to do, since
+ * cfbDoBitblt 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
+cfbSaveAreas(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 i;
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ PixmapPtr pScrPix;
+
+ i = REGION_NUM_RECTS(prgnSave);
+ pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(i * sizeof(DDXPointRec));
+ if (!pPtsInit)
+ return;
+
+ pBox = REGION_RECTS(prgnSave);
+ pPt = pPtsInit;
+ while (--i >= 0) {
+ pPt->x = pBox->x1 + xorg;
+ pPt->y = pBox->y1 + yorg;
+ pPt++;
+ pBox++;
+ }
+
+ pScrPix = (*pScreen->GetWindowPixmap)(pWin);
+
+
+ cfbDoBitbltCopy((DrawablePtr) pScrPix, (DrawablePtr)pPixmap,
+ GXcopy, prgnSave, pPtsInit, ~0L);
+
+ DEALLOCATE_LOCAL (pPtsInit);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * cfbRestoreAreas --
+ * Function called by miRestoreAreas to actually fetch the areas to be
+ * restored from the backing pixmap. This is very simple to do, since
+ * cfbDoBitblt 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
+cfbRestoreAreas(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 i;
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ PixmapPtr pScrPix;
+
+ i = REGION_NUM_RECTS(prgnRestore);
+ pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(i*sizeof(DDXPointRec));
+ if (!pPtsInit)
+ return;
+
+ pBox = REGION_RECTS(prgnRestore);
+ pPt = pPtsInit;
+ while (--i >= 0) {
+ pPt->x = pBox->x1 - xorg;
+ pPt->y = pBox->y1 - yorg;
+ pPt++;
+ pBox++;
+ }
+
+ pScrPix = (*pScreen->GetWindowPixmap)(pWin);
+
+ cfbDoBitbltCopy((DrawablePtr)pPixmap, (DrawablePtr) pScrPix,
+ GXcopy, prgnRestore, pPtsInit, ~0L);
+
+ DEALLOCATE_LOCAL (pPtsInit);
+}