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authormarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
commit4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (patch)
treec1e02b9d3509aa97703aa4b540d4cd22ec4600ed /xorg-server/afb/afbpushpxl.c
parentdc3c299dd0995549e2a6973ca0f25b254afd38a5 (diff)
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Added xorg-server-1.6.2.tar.gz
Diffstat (limited to 'xorg-server/afb/afbpushpxl.c')
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diff --git a/xorg-server/afb/afbpushpxl.c b/xorg-server/afb/afbpushpxl.c
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-/***********************************************************
-
-Copyright (c) 1987 X Consortium
-
-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
-X CONSORTIUM 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 X Consortium 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 X Consortium.
-
-
-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_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include <X11/X.h>
-#include "gcstruct.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "regionstr.h"
-#include "maskbits.h"
-#include "afb.h"
-
-#define NPT 128
-
-/* afbPushPixels -- squeegees the forground color 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.
- */
-void
-afbPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDrawable, int dx, int dy, int xOrg, int yOrg)
-{
- int h, dxDivPPW, ibEnd;
- PixelType *pwLineStart;
- register PixelType *pw, *pwEnd;
- register PixelType mask;
- register int ib;
- register PixelType w;
- register int ipt; /* index into above arrays */
- Bool fInBox;
- DDXPointRec pt[NPT];
- int width[NPT];
-
- /* Now scan convert the pixmap and use the result to call fillspans in
- * in the drawable with the original GC */
- ipt = 0;
- dxDivPPW = dx/PPW;
- for (h = 0; h < dy; h++) {
-
- pw = (PixelType *)
- (((char *)(pBitMap->devPrivate.ptr))+(h * pBitMap->devKind));
- pwLineStart = pw;
- /* Process all words which are fully in the pixmap */
-
- fInBox = FALSE;
- pwEnd = pwLineStart + dxDivPPW;
- while(pw < pwEnd) {
- w = *pw;
- mask = mfbGetendtab(1);
- for(ib = 0; ib < PPW; ib++) {
- if(w & mask) {
- 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;
- }
- }
- mask = SCRRIGHT(mask, 1);
- }
- pw++;
- }
- ibEnd = dx & PIM;
- if(ibEnd) {
- /* Process final partial word on line */
- w = *pw;
- mask = mfbGetendtab(1);
- for(ib = 0; ib < ibEnd; ib++) {
- if(w & mask) {
- 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;
- }
- }
- mask = SCRRIGHT(mask, 1);
- }
- }
- /* 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;
- }
- }
- }
- /* Flush any remaining spans */
- if (ipt) {
- (*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);
- }
-}