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Diffstat (limited to 'xorg-server/miext/shadow/shplanar.c')
-rw-r--r--xorg-server/miext/shadow/shplanar.c360
1 files changed, 180 insertions, 180 deletions
diff --git a/xorg-server/miext/shadow/shplanar.c b/xorg-server/miext/shadow/shplanar.c
index 381eba986..350405186 100644
--- a/xorg-server/miext/shadow/shplanar.c
+++ b/xorg-server/miext/shadow/shplanar.c
@@ -1,180 +1,180 @@
-/*
- *
- * 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"
-
-/*
- * 32 4-bit pixels per write
- */
-
-#define PL_SHIFT 7
-#define PL_UNIT (1 << PL_SHIFT)
-#define PL_MASK (PL_UNIT - 1)
-
-/*
- * 32->8 conversion:
- *
- * 7 6 5 4 3 2 1 0
- * A B C D E F G H
- *
- * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * m . . . H . . . G . . . F . . . E . . . D . . . C . . . B . . . A
- * m1 G . . . F . . . E . . . D . . . C . . . B . . . A . . . . . . . m << (7 - (p))
- * m2 . H . . . G . . . F . . . E . . . D . . . C . . . B . . . A . . (m >> (p)) << 2
- * m3 G E C A m1 & 0x80808080
- * m4 H F D B m2 & 0x40404040
- * m5 G H E F C D A B m3 | m4
- * m6 G H E F C D G H A B E F m5 | (m5 >> 20)
- * m7 G H E F C D G H A B C D E F G H m6 | (m6 >> 10)
- */
-
-#if 0
-#define GetBits(p,o,d) {\
- m = sha[o]; \
- m1 = m << (7 - (p)); \
- m2 = (m >> (p)) << 2; \
- m3 = m1 & 0x80808080; \
- m4 = m2 & 0x40404040; \
- m5 = m3 | m4; \
- m6 = m5 | (m5 >> 20); \
- d = m6 | (m6 >> 10); \
-}
-#else
-#define GetBits(p,o,d) {\
- m = sha[o]; \
- m5 = ((m << (7 - (p))) & 0x80808080) | (((m >> (p)) << 2) & 0x40404040); \
- m6 = m5 | (m5 >> 20); \
- d = m6 | (m6 >> 10); \
-}
-#endif
-
-void
-shadowUpdatePlanar4 (ScreenPtr pScreen,
- shadowBufPtr pBuf)
-{
- RegionPtr damage = shadowDamage (pBuf);
- PixmapPtr pShadow = pBuf->pPixmap;
- int nbox = RegionNumRects (damage);
- BoxPtr pbox = RegionRects (damage);
- CARD32 *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;
- CARD32 *winBase = NULL, *win;
- CARD32 winSize;
- int plane;
- CARD32 m,m5,m6;
- CARD8 s1, s2, s3, s4;
-
- fbGetStipDrawable (&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;
-
- w = (w + (x & PL_MASK) + PL_MASK) >> PL_SHIFT;
- x &= ~PL_MASK;
-
- scrLine = (x >> PL_SHIFT);
- shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
-
- while (h--)
- {
- for (plane = 0; plane < 4; plane++)
- {
- width = w;
- scr = scrLine;
- sha = shaLine;
- winSize = 0;
- scrBase = 0;
- while (width) {
- /* how much remains in this window */
- i = scrBase + winSize - scr;
- if (i <= 0 || scr < scrBase)
- {
- winBase = (CARD32 *) (*pBuf->window) (pScreen,
- y,
- (scr << 4) | (plane),
- SHADOW_WINDOW_WRITE,
- &winSize,
- pBuf->closure);
- if(!winBase)
- return;
- winSize >>= 2;
- scrBase = scr;
- i = winSize;
- }
- win = winBase + (scr - scrBase);
- if (i > width)
- i = width;
- width -= i;
- scr += i;
-
- while (i--)
- {
- GetBits(plane,0,s1);
- GetBits(plane,1,s2);
- GetBits(plane,2,s3);
- GetBits(plane,3,s4);
- *win++ = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24);
- sha += 4;
- }
- }
- }
- shaLine += shaStride;
- y++;
- }
- pbox++;
- }
-}
-
-shadowUpdateProc shadowUpdatePlanar4Weak(void) {
- return shadowUpdatePlanar4;
-}
-
-shadowUpdateProc shadowUpdatePlanar4x8Weak(void) {
- return shadowUpdatePlanar4x8;
-}
+/*
+ *
+ * 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"
+
+/*
+ * 32 4-bit pixels per write
+ */
+
+#define PL_SHIFT 7
+#define PL_UNIT (1 << PL_SHIFT)
+#define PL_MASK (PL_UNIT - 1)
+
+/*
+ * 32->8 conversion:
+ *
+ * 7 6 5 4 3 2 1 0
+ * A B C D E F G H
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * m . . . H . . . G . . . F . . . E . . . D . . . C . . . B . . . A
+ * m1 G . . . F . . . E . . . D . . . C . . . B . . . A . . . . . . . m << (7 - (p))
+ * m2 . H . . . G . . . F . . . E . . . D . . . C . . . B . . . A . . (m >> (p)) << 2
+ * m3 G E C A m1 & 0x80808080
+ * m4 H F D B m2 & 0x40404040
+ * m5 G H E F C D A B m3 | m4
+ * m6 G H E F C D G H A B E F m5 | (m5 >> 20)
+ * m7 G H E F C D G H A B C D E F G H m6 | (m6 >> 10)
+ */
+
+#if 0
+#define GetBits(p,o,d) {\
+ m = sha[o]; \
+ m1 = m << (7 - (p)); \
+ m2 = (m >> (p)) << 2; \
+ m3 = m1 & 0x80808080; \
+ m4 = m2 & 0x40404040; \
+ m5 = m3 | m4; \
+ m6 = m5 | (m5 >> 20); \
+ d = m6 | (m6 >> 10); \
+}
+#else
+#define GetBits(p,o,d) {\
+ m = sha[o]; \
+ m5 = ((m << (7 - (p))) & 0x80808080) | (((m >> (p)) << 2) & 0x40404040); \
+ m6 = m5 | (m5 >> 20); \
+ d = m6 | (m6 >> 10); \
+}
+#endif
+
+void
+shadowUpdatePlanar4 (ScreenPtr pScreen,
+ shadowBufPtr pBuf)
+{
+ RegionPtr damage = shadowDamage (pBuf);
+ PixmapPtr pShadow = pBuf->pPixmap;
+ int nbox = RegionNumRects (damage);
+ BoxPtr pbox = RegionRects (damage);
+ CARD32 *shaBase, *shaLine, *sha;
+ FbStride shaStride;
+ int scrBase, scrLine, scr;
+ int shaBpp;
+ _X_UNUSED int shaXoff, shaYoff;
+ int x, y, w, h, width;
+ int i;
+ CARD32 *winBase = NULL, *win;
+ CARD32 winSize;
+ int plane;
+ CARD32 m,m5,m6;
+ CARD8 s1, s2, s3, s4;
+
+ fbGetStipDrawable (&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;
+
+ w = (w + (x & PL_MASK) + PL_MASK) >> PL_SHIFT;
+ x &= ~PL_MASK;
+
+ scrLine = (x >> PL_SHIFT);
+ shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
+
+ while (h--)
+ {
+ for (plane = 0; plane < 4; plane++)
+ {
+ width = w;
+ scr = scrLine;
+ sha = shaLine;
+ winSize = 0;
+ scrBase = 0;
+ while (width) {
+ /* how much remains in this window */
+ i = scrBase + winSize - scr;
+ if (i <= 0 || scr < scrBase)
+ {
+ winBase = (CARD32 *) (*pBuf->window) (pScreen,
+ y,
+ (scr << 4) | (plane),
+ SHADOW_WINDOW_WRITE,
+ &winSize,
+ pBuf->closure);
+ if(!winBase)
+ return;
+ winSize >>= 2;
+ scrBase = scr;
+ i = winSize;
+ }
+ win = winBase + (scr - scrBase);
+ if (i > width)
+ i = width;
+ width -= i;
+ scr += i;
+
+ while (i--)
+ {
+ GetBits(plane,0,s1);
+ GetBits(plane,1,s2);
+ GetBits(plane,2,s3);
+ GetBits(plane,3,s4);
+ *win++ = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24);
+ sha += 4;
+ }
+ }
+ }
+ shaLine += shaStride;
+ y++;
+ }
+ pbox++;
+ }
+}
+
+shadowUpdateProc shadowUpdatePlanar4Weak(void) {
+ return shadowUpdatePlanar4;
+}
+
+shadowUpdateProc shadowUpdatePlanar4x8Weak(void) {
+ return shadowUpdatePlanar4x8;
+}
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