+++ /dev/null
-/*
- * cfb copy area
- */
-
-/*
-
-Copyright (c) 1989 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.
-
-Author: Keith Packard
-
-*/
-/* $XConsortium: cfbbitblt.c,v 5.51 94/05/27 11:00:56 dpw Exp $ */
-
-#include "X.h"
-#include "Xmd.h"
-#include "Xproto.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "regionstr.h"
-#include "cfb.h"
-#include "cfbmskbits.h"
-#include "cfb8bit.h"
-#include "fastblt.h"
-#define MFB_CONSTS_ONLY
-#include "maskbits.h"
-
-RegionPtr
-cfbBitBlt (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, bitPlane)
- register DrawablePtr pSrcDrawable;
- register DrawablePtr pDstDrawable;
- GC *pGC;
- int srcx, srcy;
- int width, height;
- int dstx, dsty;
- void (*doBitBlt)();
- unsigned long bitPlane;
-{
- RegionPtr prgnSrcClip; /* may be a new region, or just a copy */
- Bool freeSrcClip = FALSE;
-
- RegionPtr prgnExposed;
- RegionRec rgnDst;
- DDXPointPtr pptSrc;
- register DDXPointPtr ppt;
- register BoxPtr pbox;
- int i;
- register int dx;
- register int dy;
- xRectangle origSource;
- DDXPointRec origDest;
- int numRects;
- BoxRec fastBox;
- int fastClip = 0; /* for fast clipping with pixmap source */
- int fastExpose = 0; /* for fast exposures with pixmap source */
-
- origSource.x = srcx;
- origSource.y = srcy;
- origSource.width = width;
- origSource.height = height;
- origDest.x = dstx;
- origDest.y = dsty;
-
- if ((pSrcDrawable != pDstDrawable) &&
- pSrcDrawable->pScreen->SourceValidate)
- {
- (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, srcx, srcy, width, height);
- }
-
- srcx += pSrcDrawable->x;
- srcy += pSrcDrawable->y;
-
- /* clip the source */
-
- if (pSrcDrawable->type == DRAWABLE_PIXMAP)
- {
- if ((pSrcDrawable == pDstDrawable) &&
- (pGC->clientClipType == CT_NONE))
- {
- prgnSrcClip = cfbGetCompositeClip(pGC);
- }
- else
- {
- fastClip = 1;
- }
- }
- else
- {
- if (pGC->subWindowMode == IncludeInferiors)
- {
- if (!((WindowPtr) pSrcDrawable)->parent)
- {
- /*
- * special case bitblt from root window in
- * IncludeInferiors mode; just like from a pixmap
- */
- fastClip = 1;
- }
- else if ((pSrcDrawable == pDstDrawable) &&
- (pGC->clientClipType == CT_NONE))
- {
- prgnSrcClip = cfbGetCompositeClip(pGC);
- }
- else
- {
- prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
- freeSrcClip = TRUE;
- }
- }
- else
- {
- prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
- }
- }
-
- fastBox.x1 = srcx;
- fastBox.y1 = srcy;
- fastBox.x2 = srcx + width;
- fastBox.y2 = srcy + height;
-
- /* Don't create a source region if we are doing a fast clip */
- if (fastClip)
- {
- fastExpose = 1;
- /*
- * clip the source; if regions extend beyond the source size,
- * make sure exposure events get sent
- */
- if (fastBox.x1 < pSrcDrawable->x)
- {
- fastBox.x1 = pSrcDrawable->x;
- fastExpose = 0;
- }
- if (fastBox.y1 < pSrcDrawable->y)
- {
- fastBox.y1 = pSrcDrawable->y;
- fastExpose = 0;
- }
- if (fastBox.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
- {
- fastBox.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
- fastExpose = 0;
- }
- if (fastBox.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
- {
- fastBox.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
- fastExpose = 0;
- }
- }
- else
- {
- REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
- REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
- }
-
- dstx += pDstDrawable->x;
- dsty += pDstDrawable->y;
-
- if (pDstDrawable->type == DRAWABLE_WINDOW)
- {
- if (!((WindowPtr)pDstDrawable)->realized)
- {
- if (!fastClip)
- REGION_UNINIT(pGC->pScreen, &rgnDst);
- if (freeSrcClip)
- REGION_DESTROY(pGC->pScreen, prgnSrcClip);
- return NULL;
- }
- }
-
- dx = srcx - dstx;
- dy = srcy - dsty;
-
- /* Translate and clip the dst to the destination composite clip */
- if (fastClip)
- {
- RegionPtr cclip;
-
- /* Translate the region directly */
- fastBox.x1 -= dx;
- fastBox.x2 -= dx;
- fastBox.y1 -= dy;
- fastBox.y2 -= dy;
-
- /* If the destination composite clip is one rectangle we can
- do the clip directly. Otherwise we have to create a full
- blown region and call intersect */
-
- /* XXX because CopyPlane uses this routine for 8-to-1 bit
- * copies, this next line *must* also correctly fetch the
- * composite clip from an mfb gc
- */
-
- cclip = cfbGetCompositeClip(pGC);
- if (REGION_NUM_RECTS(cclip) == 1)
- {
- BoxPtr pBox = REGION_RECTS(cclip);
-
- if (fastBox.x1 < pBox->x1) fastBox.x1 = pBox->x1;
- if (fastBox.x2 > pBox->x2) fastBox.x2 = pBox->x2;
- if (fastBox.y1 < pBox->y1) fastBox.y1 = pBox->y1;
- if (fastBox.y2 > pBox->y2) fastBox.y2 = pBox->y2;
-
- /* Check to see if the region is empty */
- if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2)
- {
- REGION_INIT(pGC->pScreen, &rgnDst, NullBox, 0);
- }
- else
- {
- REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
- }
- }
- else
- {
- /* We must turn off fastClip now, since we must create
- a full blown region. It is intersected with the
- composite clip below. */
- fastClip = 0;
- REGION_INIT(pGC->pScreen, &rgnDst, &fastBox,1);
- }
- }
- else
- {
- REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
- }
-
- if (!fastClip)
- {
- REGION_INTERSECT(pGC->pScreen, &rgnDst,
- &rgnDst,
- cfbGetCompositeClip(pGC));
- }
-
- /* Do bit blitting */
- numRects = REGION_NUM_RECTS(&rgnDst);
- if (numRects && width && height)
- {
- if(!(pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(numRects *
- sizeof(DDXPointRec))))
- {
- REGION_UNINIT(pGC->pScreen, &rgnDst);
- if (freeSrcClip)
- REGION_DESTROY(pGC->pScreen, prgnSrcClip);
- return NULL;
- }
- pbox = REGION_RECTS(&rgnDst);
- ppt = pptSrc;
- for (i = numRects; --i >= 0; pbox++, ppt++)
- {
- ppt->x = pbox->x1 + dx;
- ppt->y = pbox->y1 + dy;
- }
-
- (*doBitBlt) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc, pGC->planemask, bitPlane);
- DEALLOCATE_LOCAL(pptSrc);
- }
-
- prgnExposed = NULL;
- if ( cfbGetGCPrivate(pGC)->fExpose)
- {
- extern RegionPtr miHandleExposures();
-
- /* Pixmap sources generate a NoExposed (we return NULL to do this) */
- if (!fastExpose)
- prgnExposed =
- miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
- origSource.x, origSource.y,
- (int)origSource.width,
- (int)origSource.height,
- origDest.x, origDest.y, bitPlane);
- }
- REGION_UNINIT(pGC->pScreen, &rgnDst);
- if (freeSrcClip)
- REGION_DESTROY(pGC->pScreen, prgnSrcClip);
- return prgnExposed;
-}
-
-
-void
-cfbDoBitblt (pSrc, pDst, alu, prgnDst, pptSrc, planemask)
- DrawablePtr pSrc, pDst;
- int alu;
- RegionPtr prgnDst;
- DDXPointPtr pptSrc;
- unsigned long planemask;
-{
- void (*blt)() = cfbDoBitbltGeneral;
- if ((planemask & PMSK) == PMSK) {
- switch (alu) {
- case GXcopy:
- blt = cfbDoBitbltCopy;
- break;
- case GXxor:
- blt = cfbDoBitbltXor;
- break;
- case GXor:
- blt = cfbDoBitbltOr;
- break;
- }
- }
- (*blt) (pSrc, pDst, alu, prgnDst, pptSrc, planemask);
-}
-
-RegionPtr
-cfbCopyArea(pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty)
- register DrawablePtr pSrcDrawable;
- register DrawablePtr pDstDrawable;
- GC *pGC;
- int srcx, srcy;
- int width, height;
- int dstx, dsty;
-{
- void (*doBitBlt) ();
-
- doBitBlt = cfbDoBitbltCopy;
- if (pGC->alu != GXcopy || (pGC->planemask & PMSK) != PMSK)
- {
- doBitBlt = cfbDoBitbltGeneral;
- if ((pGC->planemask & PMSK) == PMSK)
- {
- switch (pGC->alu) {
- case GXxor:
- doBitBlt = cfbDoBitbltXor;
- break;
- case GXor:
- doBitBlt = cfbDoBitbltOr;
- break;
- }
- }
- }
- return cfbBitBlt (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, 0L);
-}
-
-#if PSZ == 8
-void
-cfbCopyPlane1to8 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask, bitPlane)
- DrawablePtr pSrcDrawable; /* must be a bitmap */
- DrawablePtr pDstDrawable; /* must be depth 8 drawable */
- int rop; /* not used; caller must call cfb8CheckOpaqueStipple
- * beforehand to get cfb8StippleRRop set correctly */
- unsigned long planemask; /* to apply to destination writes */
- RegionPtr prgnDst; /* region in destination to draw to;
- * screen relative coords. if dest is a window;
- * drawable relative if dest is a pixmap */
- DDXPointPtr pptSrc; /* drawable relative src coords to copy from;
- * must be one point for each box in prgnDst */
- unsigned long bitPlane; /* not used; assumed always to be 1 */
-{
- int srcx, srcy; /* upper left corner of box being copied in source */
- int dstx, dsty; /* upper left corner of box being copied in dest */
- int width, height; /* in pixels, unpadded, of box being copied */
- int xoffSrc; /* bit # in leftmost word of row from which copying starts */
- int xoffDst; /* byte # in leftmost word of row from which copying starts */
- unsigned long *psrcBase, *pdstBase; /* start of drawable's pixel data */
- int widthSrc; /* # of groups of 32 pixels (1 bit/pixel) in src bitmap*/
- int widthDst; /* # of groups of 4 pixels (8 bits/pixel) in dst */
- unsigned long *psrcLine, *pdstLine; /* steps a row at a time thru src/dst;
- * may point into middle of row */
- register unsigned long *psrc, *pdst; /* steps within the row */
- register unsigned long bits, tmp; /* bits from source */
- register int leftShift;
- register int rightShift;
- unsigned long startmask; /* left edge pixel mask */
- unsigned long endmask; /* right edge pixel mask */
- register int nlMiddle; /* number of words in middle of the row to draw */
- register int nl;
- int firstoff;
- int secondoff;
- unsigned long src;
- int nbox; /* number of boxes in region to copy */
- BoxPtr pbox; /* steps thru boxes in region */
- int pixelsRemainingOnRightEdge; /* # pixels to be drawn on a row after
- * the main "middle" loop */
-
- cfbGetLongWidthAndPointer (pSrcDrawable, widthSrc, psrcBase)
- cfbGetLongWidthAndPointer (pDstDrawable, widthDst, pdstBase)
-
- nbox = REGION_NUM_RECTS(prgnDst);
- pbox = REGION_RECTS(prgnDst);
- while (nbox--)
- {
- dstx = pbox->x1;
- dsty = pbox->y1;
- srcx = pptSrc->x;
- srcy = pptSrc->y;
- width = pbox->x2 - pbox->x1;
- height = pbox->y2 - pbox->y1;
- pbox++;
- pptSrc++;
-
- psrcLine = psrcBase + srcy * widthSrc + (srcx >> MFB_PWSH);
- pdstLine = pdstBase + dsty * widthDst + (dstx >> PWSH);
- xoffSrc = srcx & MFB_PIM; /* finds starting bit in src */
- xoffDst = dstx & PIM; /* finds starting byte in dst */
-
- /* compute startmask, endmask, nlMiddle */
-
- if (xoffDst + width < PPW) /* XXX should this be '<= PPW' ? */
- { /* the copy only affects one word per row in destination */
- maskpartialbits(dstx, width, startmask);
- endmask = 0; /* nothing on right edge */
- nlMiddle = 0; /* nothing in middle */
- }
- else
- { /* the copy will affect multiple words per row in destination */
- maskbits(dstx, width, startmask, endmask, nlMiddle);
- }
-
- /*
- * compute constants for the first four bits to be
- * copied. This avoids troubles with partial first
- * writes, and difficult shift computation
- */
- if (startmask)
- {
- firstoff = xoffSrc - xoffDst;
- if (firstoff > (MFB_PPW-PPW))
- secondoff = MFB_PPW - firstoff;
- if (xoffDst)
- {
- srcx += (PPW-xoffDst);
- xoffSrc = srcx & MFB_PIM;
- }
- }
- leftShift = xoffSrc;
- rightShift = MFB_PPW - leftShift;
-
- pixelsRemainingOnRightEdge = (nlMiddle & 7) * PPW +
- ((dstx + width) & PIM);
-
- /* setup is done; now let's move some bits */
-
- /* caller must call cfb8CheckOpaqueStipple before this function
- * to set cfb8StippleRRop!
- */
-
- if (cfb8StippleRRop == GXcopy)
- {
- while (height--)
- { /* one iteration of this loop copies one row */
- psrc = psrcLine;
- pdst = pdstLine;
- psrcLine += widthSrc;
- pdstLine += widthDst;
- bits = *psrc++;
- if (startmask)
- {
- if (firstoff < 0)
- tmp = BitRight (bits, -firstoff);
- else
- {
- tmp = BitLeft (bits, firstoff);
- /*
- * need a more cautious test for partialmask
- * case...
- */
- if (firstoff >= (MFB_PPW-PPW))
- {
- bits = *psrc++;
- if (firstoff != (MFB_PPW-PPW))
- tmp |= BitRight (bits, secondoff);
- }
- }
- *pdst = (*pdst & ~startmask) | (GetPixelGroup(tmp) & startmask);
- pdst++;
- }
- nl = nlMiddle;
- while (nl >= 8)
- {
- nl -= 8;
- tmp = BitLeft(bits, leftShift);
- bits = *psrc++;
- if (rightShift != MFB_PPW)
- tmp |= BitRight(bits, rightShift);
-
-#ifdef FAST_CONSTANT_OFFSET_MODE
-# define StorePixels(pdst,o,pixels) (pdst)[o] = (pixels)
-# define EndStep(pdst,o) (pdst) += (o)
-# define StoreRopPixels(pdst,o,and,xor) (pdst)[o] = DoRRop((pdst)[o],and,xor);
-#else
-# define StorePixels(pdst,o,pixels) *(pdst)++ = (pixels)
-# define EndStep(pdst,o)
-# define StoreRopPixels(pdst,o,and,xor) *(pdst) = DoRRop(*(pdst),and,xor); (pdst)++;
-#endif
-
-#define Step(c) NextBitGroup(c);
-#define StoreBitsPlain(o,c) StorePixels(pdst,o,GetPixelGroup(c))
-#define StoreRopBitsPlain(o,c) StoreRopPixels(pdst,o,\
- cfb8StippleAnd[GetBitGroup(c)], \
- cfb8StippleXor[GetBitGroup(c)])
-#define StoreBits0(c) StoreBitsPlain(0,c)
-#define StoreRopBits0(c) StoreRopBitsPlain(0,c)
-
-#if (BITMAP_BIT_ORDER == MSBFirst)
-# define StoreBits(o,c) StoreBitsPlain(o,c)
-# define StoreRopBits(o,c) StoreRopBitsPlain(o,c)
-# define FirstStep(c) Step(c)
-#else /* BITMAP_BIT_ORDER == LSBFirst */
-#if PGSZ == 64
-# define StoreBits(o,c) StorePixels(pdst,o, (cfb8Pixels[c & 0xff]))
-# define StoreRopBits(o,c) StoreRopPixels(pdst,o, \
- (cfb8StippleAnd[c & 0xff]), \
- (cfb8StippleXor[c & 0xff]))
-# define FirstStep(c) c = BitLeft (c, 8);
-#else
-/* 0x3c is 0xf << 2 (4 bits, long word) */
-# define StoreBits(o,c) StorePixels(pdst,o,*((unsigned long *)\
- (((char *) cfb8Pixels) + (c & 0x3c))))
-# define StoreRopBits(o,c) StoreRopPixels(pdst,o, \
- *((unsigned long *) (((char *) cfb8StippleAnd) + (c & 0x3c))), \
- *((unsigned long *) (((char *) cfb8StippleXor) + (c & 0x3c))))
-# define FirstStep(c) c = BitLeft (c, 2);
-#endif /* PGSZ */
-#endif /* BITMAP_BIT_ORDER */
-
- StoreBits0(tmp); FirstStep(tmp);
- StoreBits(1,tmp); Step(tmp);
- StoreBits(2,tmp); Step(tmp);
- StoreBits(3,tmp); Step(tmp);
- StoreBits(4,tmp); Step(tmp);
- StoreBits(5,tmp); Step(tmp);
- StoreBits(6,tmp); Step(tmp);
- StoreBits(7,tmp); EndStep (pdst,8);
- }
-
- /* do rest of middle and partial word on right edge */
-
- if (pixelsRemainingOnRightEdge)
- {
- tmp = BitLeft(bits, leftShift);
-
- if (pixelsRemainingOnRightEdge > rightShift)
- {
- bits = *psrc++;
- tmp |= BitRight (bits, rightShift);
- }
- EndStep (pdst, nl);
- switch (nl)
- {
- case 7:
- StoreBitsPlain(-7,tmp); Step(tmp);
- case 6:
- StoreBitsPlain(-6,tmp); Step(tmp);
- case 5:
- StoreBitsPlain(-5,tmp); Step(tmp);
- case 4:
- StoreBitsPlain(-4,tmp); Step(tmp);
- case 3:
- StoreBitsPlain(-3,tmp); Step(tmp);
- case 2:
- StoreBitsPlain(-2,tmp); Step(tmp);
- case 1:
- StoreBitsPlain(-1,tmp); Step(tmp);
- }
- if (endmask)
- *pdst = (*pdst & ~endmask) | (GetPixelGroup(tmp) & endmask);
- }
- }
- }
- else /* cfb8StippleRRop != GXcopy */
- {
- while (height--)
- { /* one iteration of this loop copies one row */
- psrc = psrcLine;
- pdst = pdstLine;
- psrcLine += widthSrc;
- pdstLine += widthDst;
- bits = *psrc++;
-
- /* do partial word on left edge */
-
- if (startmask)
- {
- if (firstoff < 0)
- tmp = BitRight (bits, -firstoff);
- else
- {
- tmp = BitLeft (bits, firstoff);
- if (firstoff >= (MFB_PPW-PPW))
- {
- bits = *psrc++;
- if (firstoff != (MFB_PPW-PPW))
- tmp |= BitRight (bits, secondoff);
- }
- }
- src = GetBitGroup(tmp);
- *pdst = MaskRRopPixels (*pdst, src, startmask);
- pdst++;
- }
-
- /* do middle of row */
-
- nl = nlMiddle;
- while (nl >= 8)
- {
- nl -= 8;
- tmp = BitLeft(bits, leftShift);
- bits = *psrc++;
- if (rightShift != MFB_PPW)
- tmp |= BitRight(bits, rightShift);
- StoreRopBits0(tmp); FirstStep(tmp);
- StoreRopBits(1,tmp); Step(tmp);
- StoreRopBits(2,tmp); Step(tmp);
- StoreRopBits(3,tmp); Step(tmp);
- StoreRopBits(4,tmp); Step(tmp);
- StoreRopBits(5,tmp); Step(tmp);
- StoreRopBits(6,tmp); Step(tmp);
- StoreRopBits(7,tmp); EndStep(pdst,8);
- }
-
- /* do rest of middle and partial word on right edge */
-
- if (pixelsRemainingOnRightEdge)
- {
- tmp = BitLeft(bits, leftShift);
-
- if (pixelsRemainingOnRightEdge > rightShift)
- {
- bits = *psrc++; /* XXX purify abr here */
- tmp |= BitRight (bits, rightShift);
- }
- while (nl--)
- {
- src = GetBitGroup (tmp);
- *pdst = RRopPixels (*pdst, src);
- pdst++;
- NextBitGroup(tmp);
- }
- if (endmask)
- {
- src = GetBitGroup (tmp);
- *pdst = MaskRRopPixels (*pdst, src, endmask);
- }
- }
- } /* end copy one row */
- } /* end alu is non-copy-mode case */
- } /* end iteration over region boxes */
-}
-
-#endif
-
-/* shared among all different cfb depths through linker magic */
-RegionPtr (*cfbPuntCopyPlane)();
-
-RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, bitPlane)
- DrawablePtr pSrcDrawable;
- DrawablePtr pDstDrawable;
- GCPtr pGC;
- int srcx, srcy;
- int width, height;
- int dstx, dsty;
- unsigned long bitPlane;
-{
- RegionPtr ret;
- extern RegionPtr miHandleExposures();
- void (*doBitBlt)();
-
-#if PSZ == 8
-
- if (pSrcDrawable->bitsPerPixel == 1 && pDstDrawable->bitsPerPixel == 8)
- {
- if (bitPlane == 1)
- {
- doBitBlt = cfbCopyPlane1to8;
- cfb8CheckOpaqueStipple (pGC->alu,
- pGC->fgPixel, pGC->bgPixel,
- pGC->planemask);
- ret = cfbBitBlt (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, bitPlane);
- }
- else
- ret = miHandleExposures (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);
- }
- else if (pSrcDrawable->bitsPerPixel == 8 && pDstDrawable->bitsPerPixel == 1)
- {
- extern int InverseAlu[16];
- int oldalu;
-
- oldalu = pGC->alu;
- if ((pGC->fgPixel & 1) == 0 && (pGC->bgPixel&1) == 1)
- pGC->alu = InverseAlu[pGC->alu];
- else if ((pGC->fgPixel & 1) == (pGC->bgPixel & 1))
- pGC->alu = mfbReduceRop(pGC->alu, pGC->fgPixel);
- ret = cfbBitBlt (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty,
- cfbCopyPlane8to1, bitPlane);
- pGC->alu = oldalu;
- }
- else if (pSrcDrawable->bitsPerPixel == 8 && pDstDrawable->bitsPerPixel == 8)
- {
- PixmapPtr pBitmap;
- ScreenPtr pScreen = pSrcDrawable->pScreen;
- GCPtr pGC1;
-
- pBitmap = (*pScreen->CreatePixmap) (pScreen, width, height, 1);
- if (!pBitmap)
- return NULL;
- pGC1 = GetScratchGC (1, pScreen);
- if (!pGC1)
- {
- (*pScreen->DestroyPixmap) (pBitmap);
- return NULL;
- }
- /*
- * don't need to set pGC->fgPixel,bgPixel as copyPlane8to1
- * ignores pixel values, expecting the rop to "do the
- * right thing", which GXcopy will.
- */
- ValidateGC ((DrawablePtr) pBitmap, pGC1);
- /* no exposures here, scratch GC's don't get graphics expose */
- (void) cfbBitBlt (pSrcDrawable, (DrawablePtr) pBitmap,
- pGC1, srcx, srcy, width, height, 0, 0,
- cfbCopyPlane8to1, bitPlane);
- cfb8CheckOpaqueStipple (pGC->alu,
- pGC->fgPixel, pGC->bgPixel,
- pGC->planemask);
- /* no exposures here, copy bits from inside a pixmap */
- (void) cfbBitBlt ((DrawablePtr) pBitmap, pDstDrawable, pGC,
- 0, 0, width, height, dstx, dsty, cfbCopyPlane1to8, 1);
- FreeScratchGC (pGC1);
- (*pScreen->DestroyPixmap) (pBitmap);
- /* compute resultant exposures */
- ret = miHandleExposures (pSrcDrawable, pDstDrawable, pGC,
- srcx, srcy, width, height,
- dstx, dsty, bitPlane);
- }
- else
-#endif
- ret = (*cfbPuntCopyPlane) (pSrcDrawable, pDstDrawable,
- pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);
- return ret;
-}
projects / rdpsrv / blobdiff