--- /dev/null
+/*
+ * $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
projects / rdpsrv / blobdiff