Initial revision

1 files changed, 152 insertions, 0 deletions

diff --git a/afb/afbbstore.c b/afb/afbbstore.c
new file mode 100644
index 000000000..725f93d48
--- /dev/null
+++ b/afb/afbbstore.c
@@ -0,0 +1,152 @@
+/* $XFree86: xc/programs/Xserver/afb/afbbstore.c,v 3.0 1996/08/18 01:45:28 dawes Exp $ */
+/* $XConsortium: afbbstore.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	"afb.h"
+#include	"X.h"
+#include	"mibstore.h"
+#include	"regionstr.h"
+#include	"scrnintstr.h"
+#include	"pixmapstr.h"
+#include	"windowstr.h"
+
+/*-
+ *-----------------------------------------------------------------------
+ * afbSaveAreas --
+ *		Function called by miSaveAreas to actually fetch the areas to be
+ *		saved into the backing pixmap. This is very simple to do, since
+ *		afbDoBitblt 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
+afbSaveAreas(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++;
+	}
+
+	afbDoBitblt((DrawablePtr)pPixmap->drawable.pScreen->devPrivates[afbScreenPrivateIndex].ptr,
+				(DrawablePtr)pPixmap,
+				GXcopy,
+				prgnSave,
+				pPtsInit, wBackingBitPlanes (pWin));
+
+	DEALLOCATE_LOCAL(pPtsInit);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * afbRestoreAreas --
+ *		Function called by miRestoreAreas to actually fetch the areas to be
+ *		restored from the backing pixmap. This is very simple to do, since
+ *		afbDoBitblt 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
+afbRestoreAreas(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++;
+	}
+
+	afbDoBitblt((DrawablePtr)pPixmap,
+				(DrawablePtr)pPixmap->drawable.pScreen->devPrivates[afbScreenPrivateIndex].ptr,
+				GXcopy,
+				prgnRestore,
+				pPtsInit, wBackingBitPlanes (pWin));
+
+	DEALLOCATE_LOCAL(pPtsInit);
+}