X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfb8cppl.c;fp=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfb8cppl.c;h=0b5a9e6dc03e272a88efe9707b8591eea51c7263;hp=0000000000000000000000000000000000000000;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hpb=e3340a110a3b01756b8e67531395a33b40a17d37;ds=sidebyside diff --git a/Xserver/programs/Xserver/cfb/cfb8cppl.c b/Xserver/programs/Xserver/cfb/cfb8cppl.c new file mode 100644 index 0000000..0b5a9e6 --- /dev/null +++ b/Xserver/programs/Xserver/cfb/cfb8cppl.c @@ -0,0 +1,221 @@ +/* + * $XConsortium: cfb8cppl.c,v 1.15 94/04/17 20:28:41 dpw Exp $ + * +Copyright (c) 1990 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, MIT X Consortium + */ + +#if PSZ == 8 +#include "X.h" +#include "Xmd.h" +#include "gcstruct.h" +#include "window.h" +#include "pixmapstr.h" +#include "scrnintstr.h" +#include "windowstr.h" +#include "cfb.h" +#undef PSZ /* for maskbits.h */ +#include "maskbits.h" +#include "mergerop.h" + +#if BITMAP_BIT_ORDER == MSBFirst +#define LeftMost (MFB_PPW-1) +#define StepBit(bit, inc) ((bit) -= (inc)) +#else +#define LeftMost 0 +#define StepBit(bit, inc) ((bit) += (inc)) +#endif + +#define GetBits(psrc, nBits, curBit, bitPos, bits) {\ + bits = 0; \ + while (nBits--) \ + { \ + bits |= (PixelType)(((*psrc++ >> bitPos) & 1)) << curBit; \ + StepBit (curBit, 1); \ + } \ +} + +void +cfbCopyImagePlane (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask) + DrawablePtr pSrcDrawable; + DrawablePtr pDstDrawable; + int rop; + RegionPtr prgnDst; + DDXPointPtr pptSrc; + unsigned long planemask; +{ + cfbCopyPlane8to1 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, + (unsigned long) ~0L, planemask); +} + +void +cfbCopyPlane8to1 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask, bitPlane) + DrawablePtr pSrcDrawable; + DrawablePtr pDstDrawable; + int rop; + RegionPtr prgnDst; + DDXPointPtr pptSrc; + unsigned long planemask; + unsigned long bitPlane; +{ + int srcx, srcy, dstx, dsty, width, height; + unsigned char *psrcBase; + PixelType *pdstBase; + int widthSrc, widthDst; + unsigned char *psrcLine; + PixelType *pdstLine; + register unsigned char *psrc; + register int i; + register int curBit; + register int bitPos; + register unsigned long bits; + register PixelType *pdst; + PixelType startmask, endmask; + int niStart, niEnd; + int bitStart, bitEnd; + int nl, nlMiddle; + int nbox; + BoxPtr pbox; + MROP_DECLARE() + + if (!(planemask & 1)) + return; + + if (rop != GXcopy) + MROP_INITIALIZE (rop, planemask); + + cfbGetByteWidthAndPointer (pSrcDrawable, widthSrc, psrcBase) + + mfbGetPixelWidthAndPointer (pDstDrawable, widthDst, pdstBase) + + bitPos = ffs (bitPlane) - 1; + + 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; + pdstLine = mfbScanline(pdstBase, dstx, dsty, widthDst); + dstx &= MFB_PIM; + if (dstx + width <= MFB_PPW) + { + maskpartialbits(dstx, width, startmask); + nlMiddle = 0; + endmask = 0; + } + else + { + maskbits (dstx, width, startmask, endmask, nlMiddle); + } + if (startmask) + { + niStart = min(MFB_PPW - dstx, width); + bitStart = LeftMost; + StepBit (bitStart, dstx); + } + if (endmask) + { + niEnd = (dstx + width) & MFB_PIM; + bitEnd = LeftMost; + } + if (rop == GXcopy) + { + while (height--) + { + psrc = psrcLine; + pdst = pdstLine; + psrcLine += widthSrc; + mfbScanlineInc(pdstLine, widthDst); + if (startmask) + { + i = niStart; + curBit = bitStart; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst = *pdst & ~startmask | bits; + pdst++; + } + nl = nlMiddle; + while (nl--) + { + i = MFB_PPW; + curBit = LeftMost; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst++ = bits; + } + if (endmask) + { + i = niEnd; + curBit = bitEnd; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst = *pdst & ~endmask | bits; + } + } + } + else + { + while (height--) + { + psrc = psrcLine; + pdst = pdstLine; + psrcLine += widthSrc; + mfbScanlineInc(pdstLine, widthDst); + if (startmask) + { + i = niStart; + curBit = bitStart; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst = MROP_MASK(bits, *pdst, startmask); + pdst++; + } + nl = nlMiddle; + while (nl--) + { + i = MFB_PPW; + curBit = LeftMost; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst = MROP_SOLID(bits, *pdst); + pdst++; + } + if (endmask) + { + i = niEnd; + curBit = bitEnd; + GetBits (psrc, i, curBit, bitPos, bits); + *pdst = MROP_MASK (bits, *pdst, endmask); + } + } + } + } +} + +#endif