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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c')
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diff --git a/nx-X11/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c b/nx-X11/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c
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+++ b/nx-X11/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c
@@ -0,0 +1,175 @@
+/* $XdotOrg: xc/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c,v 1.4 2005/07/01 22:43:42 daniels Exp $ */
+/*
+ * Specialized window functions to protect the alpha channel
+ */
+/*
+ * Copyright (c) 2002-2003 Torrey T. Lyons. 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.
+ */
+/* Portions of this file are based on fbwindow.c, which contains the
+ * following copyright:
+ *
+ * Copyright © 1998 Keith Packard
+ */
+/* $XFree86: xc/programs/Xserver/miext/rootless/safeAlpha/safeAlphaWindow.c,v 1.1 2003/09/16 00:36:20 torrey Exp $ */
+
+#include "fb.h"
+#include "safeAlpha.h"
+#include "rootlessCommon.h"
+
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+
+/*
+ * SafeAlphaFillRegionTiled
+ * Fill using a tile while leaving the alpha channel untouched.
+ * Based on fbfillRegionTiled.
+ */
+void
+SafeAlphaFillRegionTiled(
+ DrawablePtr pDrawable,
+ RegionPtr pRegion,
+ PixmapPtr pTile)
+{
+ FbBits *dst;
+ FbStride dstStride;
+ int dstBpp;
+ int dstXoff, dstYoff;
+ FbBits *tile;
+ FbStride tileStride;
+ int tileBpp;
+ int tileXoff, tileYoff; /* XXX assumed to be zero */
+ int tileWidth, tileHeight;
+ int n = REGION_NUM_RECTS(pRegion);
+ BoxPtr pbox = REGION_RECTS(pRegion);
+ int xRot = pDrawable->x;
+ int yRot = pDrawable->y;
+ FbBits planeMask;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension)
+ {
+ int index = pDrawable->pScreen->myNum;
+ if(&WindowTable[index]->drawable == pDrawable)
+ {
+ xRot -= panoramiXdataPtr[index].x;
+ yRot -= panoramiXdataPtr[index].y;
+ }
+ }
+#endif
+ fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
+ fbGetDrawable (&pTile->drawable, tile, tileStride, tileBpp,
+ tileXoff, tileYoff);
+ tileWidth = pTile->drawable.width;
+ tileHeight = pTile->drawable.height;
+ xRot += dstXoff;
+ yRot += dstYoff;
+ planeMask = FB_ALLONES & ~RootlessAlphaMask(dstBpp);
+
+ while (n--)
+ {
+ fbTile (dst + (pbox->y1 + dstYoff) * dstStride,
+ dstStride,
+ (pbox->x1 + dstXoff) * dstBpp,
+ (pbox->x2 - pbox->x1) * dstBpp,
+ pbox->y2 - pbox->y1,
+ tile,
+ tileStride,
+ tileWidth * dstBpp,
+ tileHeight,
+ GXcopy,
+ planeMask,
+ dstBpp,
+ xRot * dstBpp,
+ yRot - pbox->y1);
+ pbox++;
+ }
+}
+
+
+/*
+ * SafeAlphaPaintWindow
+ * Paint the window while filling in the alpha channel with all on.
+ * We can't use fbPaintWindow because it zeros the alpha channel.
+ */
+void
+SafeAlphaPaintWindow(
+ WindowPtr pWin,
+ RegionPtr pRegion,
+ int what)
+{
+ switch (what) {
+ case PW_BACKGROUND:
+
+ switch (pWin->backgroundState) {
+ case None:
+ break;
+ case ParentRelative:
+ do {
+ pWin = pWin->parent;
+ } while (pWin->backgroundState == ParentRelative);
+ (*pWin->drawable.pScreen->PaintWindowBackground)(pWin, pRegion,
+ what);
+ break;
+ case BackgroundPixmap:
+ SafeAlphaFillRegionTiled (&pWin->drawable,
+ pRegion,
+ pWin->background.pixmap);
+ break;
+ case BackgroundPixel:
+ {
+ Pixel pixel = pWin->background.pixel |
+ RootlessAlphaMask(pWin->drawable.bitsPerPixel);
+ fbFillRegionSolid (&pWin->drawable, pRegion, 0,
+ fbReplicatePixel (pixel,
+ pWin->drawable.bitsPerPixel));
+ break;
+ }
+ }
+ break;
+ case PW_BORDER:
+ if (pWin->borderIsPixel)
+ {
+ Pixel pixel = pWin->border.pixel |
+ RootlessAlphaMask(pWin->drawable.bitsPerPixel);
+ fbFillRegionSolid (&pWin->drawable, pRegion, 0,
+ fbReplicatePixel (pixel,
+ pWin->drawable.bitsPerPixel));
+ }
+ else
+ {
+ WindowPtr pBgWin;
+ for (pBgWin = pWin; pBgWin->backgroundState == ParentRelative;
+ pBgWin = pBgWin->parent);
+
+ SafeAlphaFillRegionTiled (&pBgWin->drawable,
+ pRegion,
+ pWin->border.pixmap);
+ }
+ break;
+ }
+ fbValidateDrawable (&pWin->drawable);
+}