aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/miext/shadow/shpacked.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/miext/shadow/shpacked.c')
-rw-r--r--xorg-server/miext/shadow/shpacked.c236
1 files changed, 118 insertions, 118 deletions
diff --git a/xorg-server/miext/shadow/shpacked.c b/xorg-server/miext/shadow/shpacked.c
index 6736162e2..9bc869a8d 100644
--- a/xorg-server/miext/shadow/shpacked.c
+++ b/xorg-server/miext/shadow/shpacked.c
@@ -1,118 +1,118 @@
-/*
- *
- * Copyright © 2000 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stdlib.h>
-
-#include <X11/X.h>
-#include "scrnintstr.h"
-#include "windowstr.h"
-#include <X11/fonts/font.h>
-#include "dixfontstr.h"
-#include <X11/fonts/fontstruct.h>
-#include "mi.h"
-#include "regionstr.h"
-#include "globals.h"
-#include "gcstruct.h"
-#include "shadow.h"
-#include "fb.h"
-
-void
-shadowUpdatePacked (ScreenPtr pScreen,
- shadowBufPtr pBuf)
-{
- RegionPtr damage = shadowDamage (pBuf);
- PixmapPtr pShadow = pBuf->pPixmap;
- int nbox = REGION_NUM_RECTS (damage);
- BoxPtr pbox = REGION_RECTS (damage);
- FbBits *shaBase, *shaLine, *sha;
- FbStride shaStride;
- int scrBase, scrLine, scr;
- int shaBpp;
- int shaXoff, shaYoff; /* XXX assumed to be zero */
- int x, y, w, h, width;
- int i;
- FbBits *winBase = NULL, *win;
- CARD32 winSize;
-
- fbGetDrawable (&pShadow->drawable, shaBase, shaStride, shaBpp, shaXoff, shaYoff);
- while (nbox--)
- {
- x = pbox->x1 * shaBpp;
- y = pbox->y1;
- w = (pbox->x2 - pbox->x1) * shaBpp;
- h = pbox->y2 - pbox->y1;
-
- scrLine = (x >> FB_SHIFT);
- shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
-
- x &= FB_MASK;
- w = (w + x + FB_MASK) >> FB_SHIFT;
-
- while (h--)
- {
- winSize = 0;
- scrBase = 0;
- width = w;
- scr = scrLine;
- sha = shaLine;
- while (width) {
- /* how much remains in this window */
- i = scrBase + winSize - scr;
- if (i <= 0 || scr < scrBase)
- {
- winBase = (FbBits *) (*pBuf->window) (pScreen,
- y,
- scr * sizeof (FbBits),
- SHADOW_WINDOW_WRITE,
- &winSize,
- pBuf->closure);
- if(!winBase)
- return;
- scrBase = scr;
- winSize /= sizeof (FbBits);
- i = winSize;
- }
- win = winBase + (scr - scrBase);
- if (i > width)
- i = width;
- width -= i;
- scr += i;
-#define PickBit(a,i) (((a) >> (i)) & 1)
- while (i--)
- *win++ = *sha++;
- }
- shaLine += shaStride;
- y++;
- }
- pbox++;
- }
-}
-
-shadowUpdateProc
-shadowUpdatePackedWeak(void) {
- return shadowUpdatePacked;
-}
+/*
+ *
+ * Copyright © 2000 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include <X11/fonts/font.h>
+#include "dixfontstr.h"
+#include <X11/fonts/fontstruct.h>
+#include "mi.h"
+#include "regionstr.h"
+#include "globals.h"
+#include "gcstruct.h"
+#include "shadow.h"
+#include "fb.h"
+
+void
+shadowUpdatePacked (ScreenPtr pScreen,
+ shadowBufPtr pBuf)
+{
+ RegionPtr damage = shadowDamage (pBuf);
+ PixmapPtr pShadow = pBuf->pPixmap;
+ int nbox = RegionNumRects (damage);
+ BoxPtr pbox = RegionRects (damage);
+ FbBits *shaBase, *shaLine, *sha;
+ FbStride shaStride;
+ int scrBase, scrLine, scr;
+ int shaBpp;
+ int shaXoff, shaYoff; /* XXX assumed to be zero */
+ int x, y, w, h, width;
+ int i;
+ FbBits *winBase = NULL, *win;
+ CARD32 winSize;
+
+ fbGetDrawable (&pShadow->drawable, shaBase, shaStride, shaBpp, shaXoff, shaYoff);
+ while (nbox--)
+ {
+ x = pbox->x1 * shaBpp;
+ y = pbox->y1;
+ w = (pbox->x2 - pbox->x1) * shaBpp;
+ h = pbox->y2 - pbox->y1;
+
+ scrLine = (x >> FB_SHIFT);
+ shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
+
+ x &= FB_MASK;
+ w = (w + x + FB_MASK) >> FB_SHIFT;
+
+ while (h--)
+ {
+ winSize = 0;
+ scrBase = 0;
+ width = w;
+ scr = scrLine;
+ sha = shaLine;
+ while (width) {
+ /* how much remains in this window */
+ i = scrBase + winSize - scr;
+ if (i <= 0 || scr < scrBase)
+ {
+ winBase = (FbBits *) (*pBuf->window) (pScreen,
+ y,
+ scr * sizeof (FbBits),
+ SHADOW_WINDOW_WRITE,
+ &winSize,
+ pBuf->closure);
+ if(!winBase)
+ return;
+ scrBase = scr;
+ winSize /= sizeof (FbBits);
+ i = winSize;
+ }
+ win = winBase + (scr - scrBase);
+ if (i > width)
+ i = width;
+ width -= i;
+ scr += i;
+#define PickBit(a,i) (((a) >> (i)) & 1)
+ while (i--)
+ *win++ = *sha++;
+ }
+ shaLine += shaStride;
+ y++;
+ }
+ pbox++;
+ }
+}
+
+shadowUpdateProc
+shadowUpdatePackedWeak(void) {
+ return shadowUpdatePacked;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 20:18:06 +0000