-/***********************************************************
-
-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.
-
-******************************************************************/
-/* $XConsortium: mfbpushpxl.c,v 5.6 94/04/17 20:28:31 dpw Exp $ */
-
-#include "X.h"
-#include "gcstruct.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "miscstruct.h"
-#include "maskbits.h"
-#include "regionstr.h"
-#include "mfb.h"
-
-/* mfbSolidPP is courtesy of xhacks@csri.toronto.edu
-
- For fillStyle==FillSolid, a monochrome PushPixels can be reduced to
- a ROP in the following way: (Note that the ROP is the same as the
- result of ROP(src=0x3,dst=0x5))
-
- src=0011 0000 0011
- dst=0101 0101 0101
- rop fg=0 fg=1
- GXclear 0x0 0000 0100 0100 0
- GXand 0x1 0001 0100 0101 s&d
- GXandReverse 0x2 0010 0100 0110 s&~d
- GXcopy 0x3 0011 0100 0111 s
- GXandInverted 0x4 0100 0101 0100 ~s&d
- GXnoop 0x5 0101 0101 0101 d
- GXxor 0x6 0110 0101 0110 s^d
- GXor 0x7 0111 0101 0111 s|d
- GXnor 0x8 1000 0110 0100 ~s&~d
- GXequiv 0x9 1001 0110 0101 ~s^d
- GXinvert 0xa 1010 0110 0110 ~d
- GXorReverse 0xb 1011 0110 0111 s|~d
- GXcopyInverted 0xc 1100 0111 0100 ~s
- GXorInverted 0xd 1101 0111 0101 ~s|d
- GXnand 0xe 1110 0111 0110 ~s|~d
- GXset 0xf 1111 0111 0111 1
-
-For src=0: newRop = 0x4|(rop>>2)
-For src=1: newRop = 0x4|(rop&3)
-*/
-
-/* mfbSolidPP -- 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
-mfbSolidPP(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg)
- GCPtr pGC;
- PixmapPtr pBitMap;
- DrawablePtr pDrawable;
- int dx, dy, xOrg, yOrg;
-{
- unsigned char alu;
- RegionRec rgnDst;
- DDXPointPtr pptSrc;
- BoxRec srcBox;
- register DDXPointPtr ppt;
- register BoxPtr pbox;
- int i;
-
- if (!pGC->planemask & 1) return;
-
- /* compute the reduced rop function */
- alu = pGC->alu;
- if (!(pGC->fgPixel&1)) alu >>= 2;
- alu = (alu & 0x3) | 0x4;
- if (alu == GXnoop) return;
-
- srcBox.x1 = xOrg;
- srcBox.y1 = yOrg;
- srcBox.x2 = xOrg + dx;
- srcBox.y2 = yOrg + dy;
- REGION_INIT(pGC->pScreen, &rgnDst, &srcBox, 1);
-
- /* clip the shape of the dst to the destination composite clip */
- REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
- ((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->pCompositeClip);
-
- if (!REGION_NIL(&rgnDst))
- {
- i = REGION_NUM_RECTS(&rgnDst);
- pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(i * sizeof(DDXPointRec));
- if(pptSrc)
- {
- for (pbox = REGION_RECTS(&rgnDst), ppt = pptSrc;
- --i >= 0;
- pbox++, ppt++)
- {
- ppt->x = pbox->x1 - xOrg;
- ppt->y = pbox->y1 - yOrg;
- }
- mfbDoBitblt((DrawablePtr)pBitMap, pDrawable, alu, &rgnDst, pptSrc);
- DEALLOCATE_LOCAL(pptSrc);
- }
- }
- REGION_UNINIT(pGC->pScreen, &rgnDst);
-}
-
-#define NPT 128
-
-/* mfbPushPixels -- 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
-mfbPushPixels(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg)
- GCPtr pGC;
- PixmapPtr pBitMap;
- DrawablePtr pDrawable;
- int dx, dy, xOrg, 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 = endtab[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 = endtab[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);
- }
-}
projects / rdpsrv / blobdiff