aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c
diff options
context:
space:
mode:
authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c
downloadvcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz
vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2
vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip
Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c')
-rw-r--r--xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c b/xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c
new file mode 100644
index 000000000..8f6631531
--- /dev/null
+++ b/xorg-server/miext/rootless/safeAlpha/safeAlphaPicture.c
@@ -0,0 +1,211 @@
+/*
+ * Support for RENDER extension while protecting the alpha channel
+ */
+/*
+ * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.
+ * Copyright (c) 2002 Apple Computer, Inc. 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
+ * 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the sale,
+ * use or other dealings in this Software without prior written authorization.
+ */
+/* This file is largely based on fbcompose.c and fbpict.c, which contain
+ * the following copyright:
+ *
+ * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+#ifdef RENDER
+
+#include <stddef.h> /* For NULL */
+#include "fb.h"
+#include "picturestr.h"
+#include "mipict.h"
+#include "fbpict.h"
+#include "safeAlpha.h"
+#include "rootlessCommon.h"
+# define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b))
+
+/* Optimized version of fbCompositeSolidMask_nx8x8888 */
+void
+SafeAlphaCompositeSolidMask_nx8x8888(
+ CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pMask,
+ PicturePtr pDst,
+ INT16 xSrc,
+ INT16 ySrc,
+ INT16 xMask,
+ INT16 yMask,
+ INT16 xDst,
+ INT16 yDst,
+ CARD16 width,
+ CARD16 height)
+{
+ CARD32 src, srca;
+ CARD32 *dstLine, *dst, d, dstMask;
+ CARD8 *maskLine, *mask, m;
+ FbStride dstStride, maskStride;
+ CARD16 w;
+
+ fbComposeGetSolid(pSrc, src, pDst->format);
+
+ dstMask = FbFullMask (pDst->pDrawable->depth);
+ srca = src >> 24;
+ if (src == 0)
+ return;
+
+ fbComposeGetStart (pDst, xDst, yDst, CARD32, dstStride, dstLine, 1);
+ fbComposeGetStart (pMask, xMask, yMask, CARD8, maskStride, maskLine, 1);
+
+ if (dstMask == FB_ALLONES && pDst->pDrawable->bitsPerPixel == 32 &&
+ width * height > rootless_CompositePixels_threshold &&
+ SCREENREC(pDst->pDrawable->pScreen)->imp->CompositePixels)
+ {
+ void *srcp[2], *destp[2];
+ unsigned int dest_rowbytes[2];
+ unsigned int fn;
+
+ srcp[0] = &src; srcp[1] = &src;
+ /* null rowbytes pointer means use first value as a constant */
+ destp[0] = dstLine; destp[1] = dstLine;
+ dest_rowbytes[0] = dstStride * 4; dest_rowbytes[1] = dest_rowbytes[0];
+ fn = RL_COMPOSITE_FUNCTION(RL_COMPOSITE_OVER, RL_DEPTH_ARGB8888,
+ RL_DEPTH_A8, RL_DEPTH_ARGB8888);
+
+ if (SCREENREC(pDst->pDrawable->pScreen)->imp->CompositePixels(
+ width, height, fn, srcp, NULL,
+ maskLine, maskStride,
+ destp, dest_rowbytes) == Success)
+ {
+ return;
+ }
+ }
+
+ while (height--)
+ {
+ dst = dstLine;
+ dstLine += dstStride;
+ mask = maskLine;
+ maskLine += maskStride;
+ w = width;
+
+ while (w--)
+ {
+ m = *mask++;
+ if (m == 0xff)
+ {
+ if (srca == 0xff)
+ *dst = src & dstMask;
+ else
+ *dst = fbOver (src, *dst) & dstMask;
+ }
+ else if (m)
+ {
+ d = fbIn (src, m);
+ *dst = fbOver (d, *dst) & dstMask;
+ }
+ dst++;
+ }
+ }
+}
+
+void
+SafeAlphaComposite (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pMask,
+ PicturePtr pDst,
+ INT16 xSrc,
+ INT16 ySrc,
+ INT16 xMask,
+ INT16 yMask,
+ INT16 xDst,
+ INT16 yDst,
+ CARD16 width,
+ CARD16 height)
+{
+ if (!pSrc) {
+ ErrorF("SafeAlphaComposite: pSrc must not be null!\n");
+ return;
+ }
+
+ if (!pDst) {
+ ErrorF("SafeAlphaComposite: pDst must not be null!\n");
+ return;
+ }
+
+ int oldDepth = pDst->pDrawable->depth;
+ int oldFormat = pDst->format;
+
+ /*
+ * We can use the more optimized fbpict code, but it sets bits above
+ * the depth to zero. Temporarily adjust destination depth if needed.
+ */
+ if (pDst->pDrawable->type == DRAWABLE_WINDOW
+ && pDst->pDrawable->depth == 24
+ && pDst->pDrawable->bitsPerPixel == 32)
+ {
+ pDst->pDrawable->depth = 32;
+ }
+
+ /* For rootless preserve the alpha in x8r8g8b8 which really is
+ * a8r8g8b8
+ */
+ if (oldFormat == PICT_x8r8g8b8)
+ {
+ pDst->format = PICT_a8r8g8b8;
+ }
+
+ if (pSrc->pDrawable && pMask && pMask->pDrawable &&
+ !pSrc->transform && !pMask->transform &&
+ !pSrc->alphaMap && !pMask->alphaMap &&
+ !pMask->repeat && !pMask->componentAlpha && !pDst->alphaMap &&
+ pMask->format == PICT_a8 &&
+ pSrc->repeatType == RepeatNormal &&
+ pSrc->pDrawable->width == 1 &&
+ pSrc->pDrawable->height == 1 &&
+ (pDst->format == PICT_a8r8g8b8 ||
+ pDst->format == PICT_x8r8g8b8 ||
+ pDst->format == PICT_a8b8g8r8 ||
+ pDst->format == PICT_x8b8g8r8))
+ {
+ fbWalkCompositeRegion (op, pSrc, pMask, pDst,
+ xSrc, ySrc, xMask, yMask, xDst, yDst,
+ width, height,
+ TRUE /* srcRepeat */,
+ FALSE /* maskRepeat */,
+ SafeAlphaCompositeSolidMask_nx8x8888);
+ }
+ else
+ {
+ fbComposite (op, pSrc, pMask, pDst,
+ xSrc, ySrc, xMask, yMask, xDst, yDst, width, height);
+ }
+
+ pDst->pDrawable->depth = oldDepth;
+ pDst->format = oldFormat;
+}
+
+#endif /* RENDER */