589 lines
14 KiB
C
589 lines
14 KiB
C
/*
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* Fill 32 bit stippled rectangles for 8 bit frame buffers
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*/
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/*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Author: Keith Packard, MIT X Consortium
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*/
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/* $Xorg: cfbrctstp8.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */
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#if PSZ == 8
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#include "X.h"
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#include "Xmd.h"
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#include "servermd.h"
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#include "gcstruct.h"
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#include "window.h"
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#include "pixmapstr.h"
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#include "scrnintstr.h"
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#include "windowstr.h"
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#include "cfb.h"
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#include "cfbmskbits.h"
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#include "cfb8bit.h"
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#define MFB_CONSTS_ONLY
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#include "maskbits.h"
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void
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cfb8FillRectOpaqueStippled32 (pDrawable, pGC, nBox, pBox)
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DrawablePtr pDrawable;
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GCPtr pGC;
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int nBox; /* number of boxes to fill */
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register BoxPtr pBox; /* pointer to list of boxes to fill */
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{
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unsigned long *src;
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int stippleHeight;
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int nlwDst; /* width in longwords of the dest pixmap */
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int w; /* width of current box */
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register int h; /* height of current box */
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unsigned long startmask;
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unsigned long endmask; /* masks for reggedy bits at either end of line */
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int nlwMiddle; /* number of longwords between sides of boxes */
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register int nlw; /* loop version of nlwMiddle */
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unsigned long *dstLine;
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register unsigned long *dst; /* pointer to bits we're writing */
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unsigned long *dstTmp;
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int y; /* current scan line */
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unsigned long *pbits;/* pointer to start of pixmap */
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register unsigned long bits; /* bits from stipple */
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int rot, lastStop, i;
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register unsigned long xor, and;
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cfbPrivGCPtr devPriv;
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PixmapPtr stipple;
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int wEnd;
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devPriv = cfbGetGCPrivate(pGC);
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stipple = devPriv->pRotatedPixmap;
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cfb8CheckOpaqueStipple(pGC->alu, pGC->fgPixel, pGC->bgPixel, pGC->planemask);
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stippleHeight = stipple->drawable.height;
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src = (unsigned long *)stipple->devPrivate.ptr;
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cfbGetLongWidthAndPointer (pDrawable, nlwDst, pbits)
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while (nBox--)
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{
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w = pBox->x2 - pBox->x1;
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h = pBox->y2 - pBox->y1;
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y = pBox->y1;
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dstLine = pbits + (pBox->y1 * nlwDst) + ((pBox->x1 & ~PIM) >> PWSH);
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if (((pBox->x1 & PIM) + w) <= PPW)
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{
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maskpartialbits(pBox->x1, w, startmask);
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nlwMiddle = 0;
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endmask = 0;
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}
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else
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{
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maskbits (pBox->x1, w, startmask, endmask, nlwMiddle);
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}
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rot = (pBox->x1 & ((PGSZ-1) & ~PIM));
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pBox++;
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y = y % stippleHeight;
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if (cfb8StippleRRop == GXcopy)
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{
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if (w < PGSZ*2)
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{
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot)
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RotBitsLeft(bits,rot);
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dst = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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*dst = *dst & ~startmask |
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GetPixelGroup (bits) & startmask;
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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nlw = nlwMiddle;
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while (nlw--)
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{
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*dst++ = GetPixelGroup(bits);
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RotBitsLeft (bits, PGSZB);
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}
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if (endmask)
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{
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*dst = *dst & ~endmask |
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GetPixelGroup (bits) & endmask;
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}
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}
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}
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else
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{
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wEnd = 7 - (nlwMiddle & 7);
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nlwMiddle = (nlwMiddle >> 3) + 1;
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot != 0)
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RotBitsLeft (bits, rot);
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dstTmp = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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*dstTmp = *dstTmp & ~startmask |
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GetPixelGroup (bits) & startmask;
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dstTmp++;
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RotBitsLeft (bits, PGSZB);
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}
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w = 7 - wEnd;
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while (w--)
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{
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nlw = nlwMiddle;
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dst = dstTmp;
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dstTmp++;
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xor = GetPixelGroup (bits);
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while (nlw--)
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{
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*dst = xor;
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dst += 8;
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}
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NextBitGroup (bits);
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}
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nlwMiddle--;
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w = wEnd + 1;
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if (endmask)
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{
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dst = dstTmp + (nlwMiddle << 3);
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*dst = (*dst & ~endmask) |
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GetPixelGroup (bits) & endmask;
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}
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while (w--)
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{
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nlw = nlwMiddle;
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dst = dstTmp;
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dstTmp++;
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xor = GetPixelGroup (bits);
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while (nlw--)
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{
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*dst = xor;
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dst += 8;
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}
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NextBitGroup (bits);
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}
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nlwMiddle++;
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}
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}
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}
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else
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{
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot)
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RotBitsLeft(bits,rot);
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dst = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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xor = GetBitGroup(bits);
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*dst = MaskRRopPixels(*dst, xor, startmask);
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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nlw = nlwMiddle;
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while (nlw--)
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{
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RRopBitGroup(dst, GetBitGroup(bits));
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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if (endmask)
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{
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xor = GetBitGroup(bits);
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*dst = MaskRRopPixels(*dst, xor, endmask);
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}
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}
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}
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}
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}
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void
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cfb8FillRectTransparentStippled32 (pDrawable, pGC, nBox, pBox)
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DrawablePtr pDrawable;
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GCPtr pGC;
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int nBox; /* number of boxes to fill */
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BoxPtr pBox; /* pointer to list of boxes to fill */
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{
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int x, y, w, h;
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int nlwMiddle, nlwDst, nlwTmp;
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unsigned long startmask, endmask;
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register unsigned long *dst;
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unsigned long *dstLine, *pbits, *dstTmp;
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unsigned long *src;
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register unsigned long xor;
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register unsigned long bits, mask;
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int rot;
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int wEnd;
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cfbPrivGCPtr devPriv;
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PixmapPtr stipple;
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int stippleHeight;
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register int nlw;
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devPriv = cfbGetGCPrivate(pGC);
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stipple = devPriv->pRotatedPixmap;
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src = (unsigned long *)stipple->devPrivate.ptr;
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stippleHeight = stipple->drawable.height;
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cfb8CheckStipple (pGC->alu, pGC->fgPixel, pGC->planemask);
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cfbGetLongWidthAndPointer (pDrawable, nlwDst, pbits)
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while (nBox--)
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{
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x = pBox->x1;
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w = pBox->x2 - x;
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if (((x & PIM) + w) <= PPW)
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{
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maskpartialbits(x, w, startmask);
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endmask = 0;
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nlwMiddle = 0;
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}
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else
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{
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maskbits (x, w, startmask, endmask, nlwMiddle);
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}
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rot = (x & ((PGSZ-1) & ~PIM));
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y = pBox->y1;
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dstLine = pbits + (y * nlwDst) + (x >> PWSH);
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h = pBox->y2 - y;
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pBox++;
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y %= stippleHeight;
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if (cfb8StippleRRop == GXcopy)
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{
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xor = devPriv->xor;
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if (w < PGSZ*2)
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{
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot != 0)
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RotBitsLeft (bits, rot);
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dst = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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*dst = (*dst & ~(mask & startmask)) |
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(xor & (mask & startmask));
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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nlw = nlwMiddle;
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while (nlw--)
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{
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WriteBitGroup (dst,xor,GetBitGroup(bits))
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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if (endmask)
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{
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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*dst = (*dst & ~(mask & endmask)) |
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(xor & (mask & endmask));
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}
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}
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}
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else
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{
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wEnd = 7 - (nlwMiddle & 7);
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nlwMiddle = (nlwMiddle >> 3) + 1;
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot != 0)
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RotBitsLeft (bits, rot);
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dstTmp = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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*dstTmp = (*dstTmp & ~(mask & startmask)) |
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(xor & (mask & startmask));
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dstTmp++;
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RotBitsLeft (bits, PGSZB);
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}
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w = 7 - wEnd;
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while (w--)
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{
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nlw = nlwMiddle;
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dst = dstTmp;
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dstTmp++;
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#if defined(__GNUC__) && defined(mc68020)
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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xor = xor & mask;
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mask = ~mask;
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while (nlw--)
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{
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*dst = (*dst & mask) | xor;
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dst += 8;
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}
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xor = devPriv->xor;
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#else
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#define SwitchBitsLoop(body) \
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while (nlw--) \
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{ \
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body \
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dst += 8; \
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}
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SwitchBitGroup(dst, xor, GetBitGroup(bits));
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#undef SwitchBitsLoop
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#endif
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NextBitGroup (bits);
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}
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nlwMiddle--;
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w = wEnd + 1;
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if (endmask)
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{
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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dst = dstTmp + (nlwMiddle << 3);
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*dst = (*dst & ~(mask & endmask)) |
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(xor & (mask & endmask));
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}
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while (w--)
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{
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nlw = nlwMiddle;
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dst = dstTmp;
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dstTmp++;
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#if defined(__GNUC__) && defined(mc68020)
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mask = cfb8PixelMasks[GetBitGroup(bits)];
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xor = xor & mask;
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mask = ~mask;
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while (nlw--)
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{
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*dst = (*dst & mask) | xor;
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dst += 8;
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}
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xor = devPriv->xor;
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#else
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#define SwitchBitsLoop(body) \
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while (nlw--) \
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{ \
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body \
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dst += 8; \
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}
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SwitchBitGroup(dst, xor, GetBitGroup(bits));
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#undef SwitchBitsLoop
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#endif
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NextBitGroup (bits);
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}
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nlwMiddle++;
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}
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}
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}
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else
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{
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while (h--)
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{
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bits = src[y];
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y++;
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if (y == stippleHeight)
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y = 0;
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if (rot != 0)
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RotBitsLeft (bits, rot);
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dst = dstLine;
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dstLine += nlwDst;
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if (startmask)
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{
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xor = GetBitGroup(bits);
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*dst = MaskRRopPixels(*dst, xor, startmask);
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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nlw = nlwMiddle;
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while (nlw--)
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{
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RRopBitGroup(dst, GetBitGroup(bits));
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dst++;
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RotBitsLeft (bits, PGSZB);
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}
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if (endmask)
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{
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xor = GetBitGroup(bits);
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*dst = MaskRRopPixels(*dst, xor, endmask);
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}
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}
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}
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}
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}
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void
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cfb8FillRectStippledUnnatural (pDrawable, pGC, nBox, pBox)
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DrawablePtr pDrawable;
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GCPtr pGC;
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int nBox;
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register BoxPtr pBox;
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{
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unsigned long *pdstBase; /* pointer to start of bitmap */
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unsigned long *pdstLine; /* current destination line */
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int nlwDst; /* width in longwords of bitmap */
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PixmapPtr pStipple; /* pointer to stipple we want to fill with */
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int nlwMiddle;
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register int nlw;
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int x, y, w, h, xrem, xSrc, ySrc;
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int stwidth, stippleWidth;
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int stippleHeight;
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register unsigned long bits, inputBits;
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register int partBitsLeft;
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int nextPartBits;
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int bitsLeft, bitsWhole;
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register unsigned long *pdst; /* pointer to current word in bitmap */
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unsigned long *srcTemp, *srcStart;
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unsigned long *psrcBase;
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unsigned long startmask, endmask;
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if (pGC->fillStyle == FillStippled)
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cfb8CheckStipple (pGC->alu, pGC->fgPixel, pGC->planemask);
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else
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cfb8CheckOpaqueStipple (pGC->alu, pGC->fgPixel, pGC->bgPixel, pGC->planemask);
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if (cfb8StippleRRop == GXnoop)
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return;
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/*
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* OK, so what's going on here? We have two Drawables:
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*
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* The Stipple:
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* Depth = 1
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* Width = stippleWidth
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* Words per scanline = stwidth
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* Pointer to pixels = pStipple->devPrivate.ptr
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*/
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pStipple = pGC->stipple;
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stwidth = pStipple->devKind >> PWSH;
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stippleWidth = pStipple->drawable.width;
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stippleHeight = pStipple->drawable.height;
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psrcBase = (unsigned long *) pStipple->devPrivate.ptr;
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/*
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* The Target:
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* Depth = PSZ
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* Width = determined from *pwidth
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* Words per scanline = nlwDst
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* Pointer to pixels = addrlBase
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*/
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xSrc = pDrawable->x;
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ySrc = pDrawable->y;
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cfbGetLongWidthAndPointer (pDrawable, nlwDst, pdstBase)
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/* this replaces rotating the stipple. Instead we just adjust the offset
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* at which we start grabbing bits from the stipple.
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* Ensure that ppt->x - xSrc >= 0 and ppt->y - ySrc >= 0,
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* so that iline and xrem always stay within the stipple bounds.
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*/
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xSrc += (pGC->patOrg.x % stippleWidth) - stippleWidth;
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ySrc += (pGC->patOrg.y % stippleHeight) - stippleHeight;
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bitsWhole = stippleWidth;
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while (nBox--)
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{
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x = pBox->x1;
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y = pBox->y1;
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w = pBox->x2 - x;
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h = pBox->y2 - y;
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pBox++;
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pdstLine = pdstBase + y * nlwDst + (x >> PWSH);
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y = (y - ySrc) % stippleHeight;
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srcStart = psrcBase + y * stwidth;
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xrem = ((x & ~PIM) - xSrc) % stippleWidth;
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if (((x & PIM) + w) < PPW)
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{
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maskpartialbits (x, w, startmask);
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nlwMiddle = 0;
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endmask = 0;
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}
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else
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{
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maskbits (x, w, startmask, endmask, nlwMiddle);
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}
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while (h--)
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{
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srcTemp = srcStart + (xrem >> MFB_PWSH);
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bitsLeft = stippleWidth - (xrem & ~MFB_PIM);
|
|
NextUnnaturalStippleWord
|
|
NextSomeBits (inputBits, (xrem & MFB_PIM));
|
|
partBitsLeft -= (xrem & MFB_PIM);
|
|
NextUnnaturalStippleBits
|
|
nlw = nlwMiddle;
|
|
pdst = pdstLine;
|
|
if (startmask)
|
|
{
|
|
*pdst = MaskRRopPixels(*pdst,bits,startmask);
|
|
pdst++;
|
|
NextUnnaturalStippleBits
|
|
}
|
|
while (nlw--)
|
|
{
|
|
*pdst = RRopPixels(*pdst,bits);
|
|
pdst++;
|
|
NextUnnaturalStippleBits
|
|
}
|
|
if (endmask)
|
|
*pdst = MaskRRopPixels(*pdst,bits,endmask);
|
|
pdstLine += nlwDst;
|
|
y++;
|
|
srcStart += stwidth;
|
|
if (y == stippleHeight)
|
|
{
|
|
y = 0;
|
|
srcStart = psrcBase;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* PSZ == 8 */
|