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-rw-r--r--xorg-server/hw/dmx/dmxshadow.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/xorg-server/hw/dmx/dmxshadow.c b/xorg-server/hw/dmx/dmxshadow.c
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index 000000000..461fd085b
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+++ b/xorg-server/hw/dmx/dmxshadow.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2001 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * 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 on 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 (including the
+ * next paragraph) 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * 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.
+ */
+
+/*
+ * Authors:
+ * Kevin E. Martin <kem@redhat.com>
+ * David H. Dawes <dawes@xfree86.org>
+ *
+ */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "dmxsync.h"
+#include "dmxshadow.h"
+
+/** \file
+ * This file provides support for the shadow frame buffer. */
+
+/** Update the screen from the shadow frame buffer. */
+void dmxShadowUpdateProc(ScreenPtr pScreen, shadowBufPtr pBuf)
+{
+ RegionPtr damage = &pBuf->damage;
+ int nbox = REGION_NUM_RECTS(damage);
+ BoxPtr pbox = REGION_RECTS(damage);
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+
+ if (!dmxScreen->beDisplay)
+ return;
+
+ while (nbox--) {
+ XPutImage(dmxScreen->beDisplay,
+ dmxScreen->scrnWin,
+ dmxScreen->shadowGC,
+ dmxScreen->shadowFBImage,
+ pbox->x1, pbox->y1,
+ pbox->x1, pbox->y1,
+ pbox->x2 - pbox->x1,
+ pbox->y2 - pbox->y1);
+
+ pbox++;
+ }
+
+ dmxSync(dmxScreen, FALSE);
+}