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author | marha <marha@users.sourceforge.net> | 2010-06-11 14:16:16 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-06-11 14:16:16 +0000 |
commit | d1e4f4b8546c7955c66dd023bfd6ef437db9d21d (patch) | |
tree | 529985e77bfc95aa95fe5b540e8f42b0ef041206 /xorg-server/fb/fbarc.c | |
parent | 13919cf85a6ca41d97238de13344aba59e0f7680 (diff) | |
parent | 4c61bf84b11e26e6f22648668c95ea760a379163 (diff) | |
download | vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.tar.gz vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.tar.bz2 vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.zip |
svn merge ^/branches/released .
Diffstat (limited to 'xorg-server/fb/fbarc.c')
-rw-r--r-- | xorg-server/fb/fbarc.c | 298 |
1 files changed, 149 insertions, 149 deletions
diff --git a/xorg-server/fb/fbarc.c b/xorg-server/fb/fbarc.c index 3a8a2c56a..1da980255 100644 --- a/xorg-server/fb/fbarc.c +++ b/xorg-server/fb/fbarc.c @@ -1,149 +1,149 @@ -/* - * Copyright © 1998 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 "fb.h" -#include "mizerarc.h" -#include <limits.h> - -typedef void (*FbArc) (FbBits *dst, - FbStride dstStride, - int dstBpp, - xArc *arc, - int dx, - int dy, - FbBits and, - FbBits xor); - -void -fbPolyArc (DrawablePtr pDrawable, - GCPtr pGC, - int narcs, - xArc *parcs) -{ - FbArc arc; - - if (pGC->lineWidth == 0) - { -#ifndef FBNOPIXADDR - arc = 0; - if (pGC->lineStyle == LineSolid && pGC->fillStyle == FillSolid) - { - switch (pDrawable->bitsPerPixel) - { - case 8: arc = fbArc8; break; - case 16: arc = fbArc16; break; -#ifdef FB_24BIT - case 24: arc = fbArc24; break; -#endif - case 32: arc = fbArc32; break; - } - } - if (arc) - { - FbGCPrivPtr pPriv = fbGetGCPrivate (pGC); - FbBits *dst; - FbStride dstStride; - int dstBpp; - int dstXoff, dstYoff; - BoxRec box; - int x2, y2; - RegionPtr cclip; - int wrapped = 0; - - cclip = fbGetCompositeClip (pGC); - fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); -#ifdef FB_ACCESS_WRAPPER - wrapped = 1; -#else - wrapped = 0; -#endif - while (narcs--) - { - if (miCanZeroArc (parcs)) - { - box.x1 = parcs->x + pDrawable->x; - box.y1 = parcs->y + pDrawable->y; - /* - * Because box.x2 and box.y2 get truncated to 16 bits, and the - * RECT_IN_REGION test treats the resulting number as a signed - * integer, the RECT_IN_REGION test alone can go the wrong way. - * This can result in a server crash because the rendering - * routines in this file deal directly with cpu addresses - * of pixels to be stored, and do not clip or otherwise check - * that all such addresses are within their respective pixmaps. - * So we only allow the RECT_IN_REGION test to be used for - * values that can be expressed correctly in a signed short. - */ - x2 = box.x1 + (int)parcs->width + 1; - box.x2 = x2; - y2 = box.y1 + (int)parcs->height + 1; - box.y2 = y2; - if ( (x2 <= SHRT_MAX) && (y2 <= SHRT_MAX) && - (RECT_IN_REGION(pDrawable->pScreen, cclip, &box) == rgnIN) ) { -#ifdef FB_ACCESS_WRAPPER - if (!wrapped) { - fbPrepareAccess (pDrawable); - wrapped = 1; - } -#endif - (*arc) (dst, dstStride, dstBpp, - parcs, pDrawable->x + dstXoff, pDrawable->y + dstYoff, - pPriv->and, pPriv->xor); - } else { -#ifdef FB_ACCESS_WRAPPER - if (wrapped) { - fbFinishAccess (pDrawable); - wrapped = 0; - } -#endif - miZeroPolyArc(pDrawable, pGC, 1, parcs); - } - } - else { -#ifdef FB_ACCESS_WRAPPER - if (wrapped) { - fbFinishAccess (pDrawable); - wrapped = 0; - } -#endif - miPolyArc(pDrawable, pGC, 1, parcs); - } - parcs++; - } -#ifdef FB_ACCESS_WRAPPER - if (wrapped) { - fbFinishAccess (pDrawable); - wrapped = 0; - } -#endif - } - else -#endif - miZeroPolyArc (pDrawable, pGC, narcs, parcs); - } - else - miPolyArc (pDrawable, pGC, narcs, parcs); -} +/*
+ * Copyright © 1998 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 "fb.h"
+#include "mizerarc.h"
+#include <limits.h>
+
+typedef void (*FbArc) (FbBits *dst,
+ FbStride dstStride,
+ int dstBpp,
+ xArc *arc,
+ int dx,
+ int dy,
+ FbBits and,
+ FbBits xor);
+
+void
+fbPolyArc (DrawablePtr pDrawable,
+ GCPtr pGC,
+ int narcs,
+ xArc *parcs)
+{
+ FbArc arc;
+
+ if (pGC->lineWidth == 0)
+ {
+#ifndef FBNOPIXADDR
+ arc = 0;
+ if (pGC->lineStyle == LineSolid && pGC->fillStyle == FillSolid)
+ {
+ switch (pDrawable->bitsPerPixel)
+ {
+ case 8: arc = fbArc8; break;
+ case 16: arc = fbArc16; break;
+#ifdef FB_24BIT
+ case 24: arc = fbArc24; break;
+#endif
+ case 32: arc = fbArc32; break;
+ }
+ }
+ if (arc)
+ {
+ FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
+ FbBits *dst;
+ FbStride dstStride;
+ int dstBpp;
+ int dstXoff, dstYoff;
+ BoxRec box;
+ int x2, y2;
+ RegionPtr cclip;
+ int wrapped = 0;
+
+ cclip = fbGetCompositeClip (pGC);
+ fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
+#ifdef FB_ACCESS_WRAPPER
+ wrapped = 1;
+#else
+ wrapped = 0;
+#endif
+ while (narcs--)
+ {
+ if (miCanZeroArc (parcs))
+ {
+ box.x1 = parcs->x + pDrawable->x;
+ box.y1 = parcs->y + pDrawable->y;
+ /*
+ * Because box.x2 and box.y2 get truncated to 16 bits, and the
+ * RECT_IN_REGION test treats the resulting number as a signed
+ * integer, the RECT_IN_REGION test alone can go the wrong way.
+ * This can result in a server crash because the rendering
+ * routines in this file deal directly with cpu addresses
+ * of pixels to be stored, and do not clip or otherwise check
+ * that all such addresses are within their respective pixmaps.
+ * So we only allow the RECT_IN_REGION test to be used for
+ * values that can be expressed correctly in a signed short.
+ */
+ x2 = box.x1 + (int)parcs->width + 1;
+ box.x2 = x2;
+ y2 = box.y1 + (int)parcs->height + 1;
+ box.y2 = y2;
+ if ( (x2 <= SHRT_MAX) && (y2 <= SHRT_MAX) &&
+ (RegionContainsRect(cclip, &box) == rgnIN) ) {
+#ifdef FB_ACCESS_WRAPPER
+ if (!wrapped) {
+ fbPrepareAccess (pDrawable);
+ wrapped = 1;
+ }
+#endif
+ (*arc) (dst, dstStride, dstBpp,
+ parcs, pDrawable->x + dstXoff, pDrawable->y + dstYoff,
+ pPriv->and, pPriv->xor);
+ } else {
+#ifdef FB_ACCESS_WRAPPER
+ if (wrapped) {
+ fbFinishAccess (pDrawable);
+ wrapped = 0;
+ }
+#endif
+ miZeroPolyArc(pDrawable, pGC, 1, parcs);
+ }
+ }
+ else {
+#ifdef FB_ACCESS_WRAPPER
+ if (wrapped) {
+ fbFinishAccess (pDrawable);
+ wrapped = 0;
+ }
+#endif
+ miPolyArc(pDrawable, pGC, 1, parcs);
+ }
+ parcs++;
+ }
+#ifdef FB_ACCESS_WRAPPER
+ if (wrapped) {
+ fbFinishAccess (pDrawable);
+ wrapped = 0;
+ }
+#endif
+ }
+ else
+#endif
+ miZeroPolyArc (pDrawable, pGC, narcs, parcs);
+ }
+ else
+ miPolyArc (pDrawable, pGC, narcs, parcs);
+}
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