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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/hw/xnest/Pixmap.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/hw/xnest/Pixmap.c')
-rw-r--r--nx-X11/programs/Xserver/hw/xnest/Pixmap.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xnest/Pixmap.c b/nx-X11/programs/Xserver/hw/xnest/Pixmap.c
new file mode 100644
index 000000000..30ffbc6e6
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/xnest/Pixmap.c
@@ -0,0 +1,141 @@
+/* $Xorg: Pixmap.c,v 1.3 2000/08/17 19:53:28 cpqbld Exp $ */
+/*
+
+Copyright 1993 by Davor Matic
+
+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. Davor Matic makes no representations about
+the suitability of this software for any purpose. It is provided "as
+is" without express or implied warranty.
+
+*/
+/* $XFree86: xc/programs/Xserver/hw/xnest/Pixmap.c,v 3.7 2003/07/16 01:38:51 dawes Exp $ */
+
+#ifdef HAVE_XNEST_CONFIG_H
+#include <xnest-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "regionstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+#include "regionstr.h"
+#include "gc.h"
+#include "servermd.h"
+#include "mi.h"
+
+#include "Xnest.h"
+
+#include "Display.h"
+#include "Screen.h"
+#include "XNPixmap.h"
+
+#ifdef PIXPRIV
+int xnestPixmapPrivateIndex;
+#endif
+
+PixmapPtr
+xnestCreatePixmap(ScreenPtr pScreen, int width, int height, int depth)
+{
+ PixmapPtr pPixmap;
+
+ pPixmap = AllocatePixmap(pScreen, sizeof(xnestPrivPixmap));
+ if (!pPixmap)
+ return NullPixmap;
+ pPixmap->drawable.type = DRAWABLE_PIXMAP;
+ pPixmap->drawable.class = 0;
+ pPixmap->drawable.depth = depth;
+ pPixmap->drawable.bitsPerPixel = depth;
+ pPixmap->drawable.id = 0;
+ pPixmap->drawable.x = 0;
+ pPixmap->drawable.y = 0;
+ pPixmap->drawable.width = width;
+ pPixmap->drawable.height = height;
+ pPixmap->drawable.pScreen = pScreen;
+ pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pPixmap->refcnt = 1;
+ pPixmap->devKind = PixmapBytePad(width, depth);
+#ifdef PIXPRIV
+ pPixmap->devPrivates[xnestPixmapPrivateIndex].ptr =
+ (pointer)((char *)pPixmap + pScreen->totalPixmapSize);
+#else
+ pPixmap->devPrivate.ptr = (pointer)(pPixmap + 1);
+#endif
+ if (width && height)
+ xnestPixmapPriv(pPixmap)->pixmap =
+ XCreatePixmap(xnestDisplay,
+ xnestDefaultWindows[pScreen->myNum],
+ width, height, depth);
+ else
+ xnestPixmapPriv(pPixmap)->pixmap = 0;
+
+ return pPixmap;
+}
+
+Bool
+xnestDestroyPixmap(PixmapPtr pPixmap)
+{
+ if(--pPixmap->refcnt)
+ return TRUE;
+ XFreePixmap(xnestDisplay, xnestPixmap(pPixmap));
+ xfree(pPixmap);
+ return TRUE;
+}
+
+RegionPtr
+xnestPixmapToRegion(PixmapPtr pPixmap)
+{
+ XImage *ximage;
+ register RegionPtr pReg, pTmpReg;
+ register int x, y;
+ unsigned long previousPixel, currentPixel;
+ BoxRec Box;
+ Bool overlap;
+
+ ximage = XGetImage(xnestDisplay, xnestPixmap(pPixmap), 0, 0,
+ pPixmap->drawable.width, pPixmap->drawable.height,
+ 1, XYPixmap);
+
+ pReg = REGION_CREATE(pPixmap->drawable.pScreen, NULL, 1);
+ pTmpReg = REGION_CREATE(pPixmap->drawable.pScreen, NULL, 1);
+ if(!pReg || !pTmpReg) return NullRegion;
+
+ for (y = 0; y < pPixmap->drawable.height; y++) {
+ Box.y1 = y;
+ Box.y2 = y + 1;
+ previousPixel = 0L;
+ for (x = 0; x < pPixmap->drawable.width; x++) {
+ currentPixel = XGetPixel(ximage, x, y);
+ if (previousPixel != currentPixel) {
+ if (previousPixel == 0L) {
+ /* left edge */
+ Box.x1 = x;
+ }
+ else if (currentPixel == 0L) {
+ /* right edge */
+ Box.x2 = x;
+ REGION_RESET(pPixmap->drawable.pScreen, pTmpReg, &Box);
+ REGION_APPEND(pPixmap->drawable.pScreen, pReg, pTmpReg);
+ }
+ previousPixel = currentPixel;
+ }
+ }
+ if (previousPixel != 0L) {
+ /* right edge because of the end of pixmap */
+ Box.x2 = pPixmap->drawable.width;
+ REGION_RESET(pPixmap->drawable.pScreen, pTmpReg, &Box);
+ REGION_APPEND(pPixmap->drawable.pScreen, pReg, pTmpReg);
+ }
+ }
+
+ REGION_DESTROY(pPixmap->drawable.pScreen, pTmpReg);
+ XDestroyImage(ximage);
+
+ REGION_VALIDATE(pPixmap->drawable.pScreen, pReg, &overlap);
+
+ return(pReg);
+}