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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/xwin/winpushpxl.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/xwin/winpushpxl.c')
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diff --git a/nx-X11/programs/Xserver/hw/xwin/winpushpxl.c b/nx-X11/programs/Xserver/hw/xwin/winpushpxl.c
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+/* $XFree86: xc/programs/Xserver/mi/mipushpxl.c,v 3.11 2001/01/17 22:37:07 dawes Exp $ */
+/***********************************************************
+
+Copyright 1987, 1998 The Open Group
+
+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.
+
+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
+OPEN GROUP 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 of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include <X11/X.h>
+#include "gcstruct.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "miscstruct.h"
+#include "../mfb/maskbits.h"
+#include "mi.h"
+
+#define NPT 128
+
+/* winPushPixels -- squeegees the fill style of pGC through pBitMap
+ * into pDrawable. pBitMap is a stencil (dx by dy of it is used, it may
+ * be bigger) which is placed on the drawable at xOrg, yOrg. Where a 1 bit
+ * is set in the bitmap, the fill style is put onto the drawable using
+ * the GC's logical function. The drawable is not changed where the bitmap
+ * has a zero bit or outside the area covered by the stencil.
+
+WARNING:
+ this code works if the 1-bit deep pixmap format returned by GetSpans
+is the same as the format defined by the mfb code (i.e. 32-bit padding
+per scanline, scanline unit = 32 bits; later, this might mean
+bitsizeof(int) padding and sacnline unit == bitsizeof(int).)
+
+ */
+
+/*
+ * in order to have both (MSB_FIRST and LSB_FIRST) versions of this
+ * in the server, we need to rename one of them
+ */
+void
+winPushPixels (GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDrawable,
+ int dx, int dy, int xOrg, int yOrg)
+{
+ int h, dxDivPPW, ibEnd;
+ MiBits *pwLineStart;
+ register MiBits *pw, *pwEnd;
+ register MiBits msk;
+ register int ib, w;
+ register int ipt; /* index into above arrays */
+ Bool fInBox;
+ DDXPointRec pt[NPT], ptThisLine;
+ int width[NPT];
+ PixelType startmask;
+
+
+ startmask = (MiBits)(-1) ^
+ LONG2CHARSDIFFORDER((MiBits)(-1) >> 1);
+
+ pwLineStart = (MiBits *)xalloc(BitmapBytePad(dx));
+ if (!pwLineStart)
+ return;
+ ipt = 0;
+ dxDivPPW = dx/PPW;
+
+ for(h = 0, ptThisLine.x = 0, ptThisLine.y = 0;
+ h < dy;
+ h++, ptThisLine.y++)
+ {
+
+ (*pBitMap->drawable.pScreen->GetSpans)((DrawablePtr)pBitMap, dx,
+ &ptThisLine, &dx, 1, (char *)pwLineStart);
+
+ pw = pwLineStart;
+ /* Process all words which are fully in the pixmap */
+
+ fInBox = FALSE;
+ pwEnd = pwLineStart + dxDivPPW;
+ while(pw < pwEnd)
+ {
+ w = *pw;
+#ifdef XFree86Server
+ msk = startmask;
+#else
+ msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
+#endif
+ for(ib = 0; ib < PPW; ib++)
+ {
+ if(w & msk)
+ {
+ if(!fInBox)
+ {
+ pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+ pt[ipt].y = h + yOrg;
+ /* start new box */
+ fInBox = TRUE;
+ }
+ }
+ else
+ {
+ if(fInBox)
+ {
+ width[ipt] = ((pw - pwLineStart) << PWSH) +
+ ib + xOrg - pt[ipt].x;
+ if (++ipt >= NPT)
+ {
+ (*pGC->ops->FillSpans)(pDrawable, pGC,
+ NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ /* end box */
+ fInBox = FALSE;
+ }
+ }
+#ifdef XFree86Server
+ /* This is not quite right, but it'll do for now */
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
+#else
+ msk = SCRRIGHT(msk, 1);
+#endif
+ }
+ pw++;
+ }
+ ibEnd = dx & PIM;
+ if(ibEnd)
+ {
+ /* Process final partial word on line */
+ w = *pw;
+#ifdef XFree86Server
+ msk = startmask;
+#else
+ msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
+#endif
+ for(ib = 0; ib < ibEnd; ib++)
+ {
+ if(w & msk)
+ {
+ if(!fInBox)
+ {
+ /* start new box */
+ pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+ pt[ipt].y = h + yOrg;
+ fInBox = TRUE;
+ }
+ }
+ else
+ {
+ if(fInBox)
+ {
+ /* end box */
+ width[ipt] = ((pw - pwLineStart) << PWSH) +
+ ib + xOrg - pt[ipt].x;
+ if (++ipt >= NPT)
+ {
+ (*pGC->ops->FillSpans)(pDrawable,
+ pGC, NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ fInBox = FALSE;
+ }
+ }
+#ifdef XFree86Server
+ /* This is not quite right, but it'll do for now */
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
+#else
+ msk = SCRRIGHT(msk, 1);
+#endif
+ }
+ }
+ /* If scanline ended with last bit set, end the box */
+ if(fInBox)
+ {
+ width[ipt] = dx + xOrg - pt[ipt].x;
+ if (++ipt >= NPT)
+ {
+ (*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ }
+ }
+ xfree(pwLineStart);
+ /* Flush any remaining spans */
+ if (ipt)
+ {
+ (*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);
+ }
+}