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-rw-r--r--hw/xwin/winpushpxl.c225
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diff --git a/hw/xwin/winpushpxl.c b/hw/xwin/winpushpxl.c
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index 72ef2d559..000000000
--- a/hw/xwin/winpushpxl.c
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-/***********************************************************
-
-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);
- }
-}
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