/* $XFree86: xc/programs/Xserver/afb/afbtile.c,v 3.3 2001/10/28 03:32:59 tsi Exp $ */ /* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */ /*********************************************************** 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: afbtile.c,v 5.8 94/04/17 20:28:36 dpw Exp $ */ #include "X.h" #include "windowstr.h" #include "regionstr.h" #include "pixmapstr.h" #include "scrnintstr.h" #include "afb.h" #include "maskbits.h" #include "mergerop.h" /* the boxes are already translated. NOTE: iy = ++iy < tileHeight ? iy : 0 is equivalent to iy%= tileheight, and saves a division. */ /* tile area with a PPW bit wide pixmap */ void MROP_NAME(afbTileAreaPPW)(pDraw, nbox, pbox, alu, ptile, planemask) DrawablePtr pDraw; int nbox; BoxPtr pbox; int alu; PixmapPtr ptile; unsigned long planemask; { register PixelType *psrc; /* pointer to bits in tile, if needed */ int tileHeight; /* height of the tile */ register PixelType srcpix; int nlwidth; /* width in longwords of the drawable */ int w; /* width of current box */ MROP_DECLARE_REG () register int h; /* height of current box */ register int nlw; /* loop version of nlwMiddle */ register PixelType *p; /* pointer to bits we're writing */ int sizeDst; int depthDst; int tlwidth; register int d; PixelType startmask; PixelType endmask; /* masks for reggedy bits at either end of line */ int nlwMiddle; /* number of longwords between sides of boxes */ int nlwExtra; /* to get from right of box to left of next span */ register int iy; /* index of current scanline in tile */ PixelType *pbits; /* pointer to start of drawable */ PixelType *saveP; PixelType *pSaveSrc; int saveH; int saveIY; afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst, pbits); MROP_INITIALIZE(alu,~0) tileHeight = ptile->drawable.height; tlwidth = ptile->devKind / sizeof (PixelType); pSaveSrc = (PixelType *)(ptile->devPrivate.ptr); while (nbox--) { w = pbox->x2 - pbox->x1; saveH = pbox->y2 - pbox->y1; saveIY = pbox->y1 % tileHeight; saveP = afbScanline(pbits, pbox->x1, pbox->y1, nlwidth); psrc = pSaveSrc; if (((pbox->x1 & PIM) + w) < PPW) { maskpartialbits(pbox->x1, w, startmask); nlwExtra = nlwidth; for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; p = saveP; h = saveH; iy = saveIY; while (h--) { srcpix = psrc[iy]; iy++; if (iy == tileHeight) iy = 0; *p = MROP_MASK(srcpix,*p,startmask); afbScanlineInc(p, nlwExtra); } } } else { maskbits(pbox->x1, w, startmask, endmask, nlwMiddle); for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; p = saveP; h = saveH; iy = saveIY; nlwExtra = nlwidth - nlwMiddle; if (startmask && endmask) { nlwExtra -= 1; while (h--) { srcpix = psrc[iy]; iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; *p = MROP_MASK (srcpix,*p,startmask); p++; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } *p = MROP_MASK(srcpix,*p,endmask); afbScanlineInc(p, nlwExtra); } } else if (startmask && !endmask) { nlwExtra -= 1; while (h--) { srcpix = psrc[iy]; iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; *p = MROP_MASK(srcpix,*p,startmask); p++; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } afbScanlineInc(p, nlwExtra); } } else if (!startmask && endmask) { while (h--) { srcpix = psrc[iy]; iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } *p = MROP_MASK(srcpix,*p,endmask); afbScanlineInc(p, nlwExtra); } } else { /* no ragged bits at either end */ while (h--) { srcpix = psrc[iy]; iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; while (nlw--) { *p = MROP_SOLID (srcpix,*p); p++; } afbScanlineInc(p, nlwExtra); } } } /* for (d = ...) */ } pbox++; } } void MROP_NAME(afbTileArea)(pDraw, nbox, pbox, alu, pTile, xOff, yOff, planemask) DrawablePtr pDraw; int nbox; BoxPtr pbox; int alu; PixmapPtr pTile; int xOff; int yOff; unsigned long planemask; { register PixelType *psrc; /* pointer to bits in tile, if needed */ int nlwidth; /* width in longwords of the drawable */ MROP_DECLARE_REG () register int h; /* height of current box */ register PixelType *pdst; /* pointer to bits we're writing */ register PixelType tmpsrc; #if (MROP) != Mcopy register PixelType tmpdst; #endif int sizeDst; int depthDst; int sizeTile; int tileLine; int iline; int w, width, x, xSrc, ySrc, srcStartOver, nend; int tlwidth, rem, tileWidth, tileHeight, endinc; int saveW; PixelType *psrcT; int d; int nstart; PixelType startmask; PixelType endmask; /* masks for reggedy bits at either end of line */ int nlMiddle; /* number of longwords between sides of boxes */ int iy; PixelType *pBase; /* pointer to start of drawable */ PixelType *saveP; PixelType *pStartDst; PixelType *pStartTile; int saveH; afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst, pBase); MROP_INITIALIZE(alu,~0) tileHeight = pTile->drawable.height; tileWidth = pTile->drawable.width; tlwidth = pTile->devKind / sizeof (PixelType); sizeTile = tlwidth * tileHeight; xSrc = pDraw->x + ((xOff % tileWidth) - tileWidth); ySrc = pDraw->y + ((yOff % tileHeight) - tileHeight); while (nbox--) { saveW = pbox->x2 - pbox->x1; iline = (pbox->y1 - ySrc) % tileHeight; psrcT = (PixelType *) pTile->devPrivate.ptr; tileLine = iline * tlwidth; saveH = pbox->y2 - pbox->y1; saveP = afbScanline(pBase, pbox->x1, pbox->y1, nlwidth); for (d = 0; d < depthDst; d++, psrcT += sizeTile, saveP += sizeDst) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; h = saveH; pStartDst = saveP; pStartTile = psrcT + tileLine; iy = iline; while (h--) { x = pbox->x1; width = saveW; pdst = pStartDst; while(width > 0) { psrc = pStartTile; w = min(tileWidth, width); if((rem = (x - xSrc) % tileWidth) != 0) { /* if we're in the middle of the tile, get as many bits as will finish the span, or as many as will get to the left edge of the tile, or a longword worth, starting at the appropriate offset in the tile. */ w = min(min(tileWidth - rem, width), BITMAP_SCANLINE_PAD); endinc = rem / BITMAP_SCANLINE_PAD; getbits ((psrc+endinc), (rem&PIM), w, tmpsrc); #if (MROP) != Mcopy getbits (pdst, (x & PIM), w, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), w, pdst); if((x & PIM) + w >= PPW) pdst++; } else if(((x & PIM) + w) < PPW) { /* doing < PPW bits is easy, and worth special-casing */ tmpsrc = *psrc; #if (MROP) != Mcopy getbits (pdst, (x & PIM), w, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), w, pdst); } else { /* start at the left edge of the tile, and put down as much as we can */ maskbits(x, w, startmask, endmask, nlMiddle); if (startmask) nstart = PPW - (x & PIM); else nstart = 0; if (endmask) nend = (x + w) & PIM; else nend = 0; srcStartOver = nstart > PLST; if(startmask) { tmpsrc = *psrc; #if (MROP) != Mcopy getbits (pdst, (x & PIM), nstart, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), nstart, pdst); pdst++; if(srcStartOver) psrc++; } while(nlMiddle--) { getbits (psrc, nstart, PPW, tmpsrc); #if (MROP) != Mcopy tmpdst = *pdst; tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif *pdst++ = tmpsrc; /*putbits (tmpsrc, 0, PPW, pdst); pdst++;*/ psrc++; } if(endmask) { getbits (psrc, nstart, nend, tmpsrc); #if (MROP) != Mcopy tmpdst = *pdst; tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, 0, nend, pdst); } } x += w; width -= w; } /* while (width > 0) */ pStartDst += nlwidth; if (++iy >= tileHeight) { iy = 0; pStartTile = psrcT; } else pStartTile += tlwidth; } /* while (h) */ } /* for (d = ... ) */ pbox++; } /* for each box */ } void MROP_NAME(afbOpaqueStippleAreaPPW)(pDraw, nbox, pbox, alu, ptile, rropsOS, planemask) DrawablePtr pDraw; int nbox; BoxPtr pbox; int alu; PixmapPtr ptile; register unsigned char *rropsOS; unsigned long planemask; { register PixelType *psrc; /* pointer to bits in tile, if needed */ int tileHeight; /* height of the tile */ register PixelType srcpix = 0; int nlwidth; /* width in longwords of the drawable */ int w; /* width of current box */ MROP_DECLARE_REG () register int h; /* height of current box */ register int nlw; /* loop version of nlwMiddle */ register PixelType *p; /* pointer to bits we're writing */ int sizeDst; int depthDst; register int d; PixelType startmask; PixelType endmask; /* masks for reggedy bits at either end of line */ int nlwMiddle; /* number of longwords between sides of boxes */ int nlwExtra; /* to get from right of box to left of next span */ register int iy; /* index of current scanline in tile */ PixelType *pbits; /* pointer to start of drawable */ PixelType *saveP; int saveH; int saveIY; afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst, pbits); MROP_INITIALIZE(alu,~0) tileHeight = ptile->drawable.height; psrc = (PixelType *)(ptile->devPrivate.ptr); while (nbox--) { w = pbox->x2 - pbox->x1; saveH = pbox->y2 - pbox->y1; saveIY = pbox->y1 % tileHeight; saveP = afbScanline(pbits, pbox->x1, pbox->y1, nlwidth); if ( ((pbox->x1 & PIM) + w) < PPW) { maskpartialbits(pbox->x1, w, startmask); nlwExtra = nlwidth; for (d = 0; d < depthDst; d++, saveP += sizeDst) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; p = saveP; h = saveH; iy = saveIY; while (h--) { switch (rropsOS[d]) { case RROP_BLACK: srcpix = 0; break; case RROP_WHITE: srcpix = ~0; break; case RROP_COPY: srcpix = psrc[iy]; break; case RROP_INVERT: srcpix = ~psrc[iy]; break; } iy++; if (iy == tileHeight) iy = 0; *p = MROP_MASK(srcpix,*p,startmask); afbScanlineInc(p, nlwExtra); } } } else { maskbits(pbox->x1, w, startmask, endmask, nlwMiddle); for (d = 0; d < depthDst; d++, saveP += sizeDst) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; p = saveP; h = saveH; iy = saveIY; nlwExtra = nlwidth - nlwMiddle; if (startmask && endmask) { nlwExtra -= 1; while (h--) { switch (rropsOS[d]) { case RROP_BLACK: srcpix = 0; break; case RROP_WHITE: srcpix = ~0; break; case RROP_COPY: srcpix = psrc[iy]; break; case RROP_INVERT: srcpix = ~psrc[iy]; break; } iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; *p = MROP_MASK (srcpix,*p,startmask); p++; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } *p = MROP_MASK(srcpix,*p,endmask); afbScanlineInc(p, nlwExtra); } } else if (startmask && !endmask) { nlwExtra -= 1; while (h--) { switch (rropsOS[d]) { case RROP_BLACK: srcpix = 0; break; case RROP_WHITE: srcpix = ~0; break; case RROP_COPY: srcpix = psrc[iy]; break; case RROP_INVERT: srcpix = ~psrc[iy]; break; } iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; *p = MROP_MASK(srcpix,*p,startmask); p++; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } afbScanlineInc(p, nlwExtra); } } else if (!startmask && endmask) { while (h--) { switch (rropsOS[d]) { case RROP_BLACK: srcpix = 0; break; case RROP_WHITE: srcpix = ~0; break; case RROP_COPY: srcpix = psrc[iy]; break; case RROP_INVERT: srcpix = ~psrc[iy]; break; } iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; while (nlw--) { *p = MROP_SOLID(srcpix,*p); p++; } *p = MROP_MASK(srcpix,*p,endmask); afbScanlineInc(p, nlwExtra); } } else { /* no ragged bits at either end */ while (h--) { switch (rropsOS[d]) { case RROP_BLACK: srcpix = 0; break; case RROP_WHITE: srcpix = ~0; break; case RROP_COPY: srcpix = psrc[iy]; break; case RROP_INVERT: srcpix = ~psrc[iy]; break; } iy++; if (iy == tileHeight) iy = 0; nlw = nlwMiddle; while (nlw--) { *p = MROP_SOLID (srcpix,*p); p++; } afbScanlineInc(p, nlwExtra); } } } /* for (d = ...) */ } pbox++; } } void MROP_NAME(afbOpaqueStippleArea)(pDraw, nbox, pbox, alu, pTile, xOff, yOff, rropsOS, planemask) DrawablePtr pDraw; int nbox; BoxPtr pbox; int alu; PixmapPtr pTile; int xOff; int yOff; register unsigned char *rropsOS; unsigned long planemask; { register PixelType *psrc; /* pointer to bits in tile, if needed */ int nlwidth; /* width in longwords of the drawable */ MROP_DECLARE_REG () register int h; /* height of current box */ register PixelType *pdst; /* pointer to bits we're writing */ register PixelType tmpsrc = 0; #if (MROP) != Mcopy register PixelType tmpdst; #endif int sizeDst; int depthDst; int tileLine; int iline; int w, width, x, xSrc, ySrc, srcStartOver, nend; int tlwidth, rem, tileWidth, tileHeight, endinc; int saveW; PixelType *psrcT; int d; int nstart; PixelType startmask; PixelType endmask; /* masks for reggedy bits at either end of line */ int nlMiddle; /* number of longwords between sides of boxes */ int iy; PixelType *pBase; /* pointer to start of drawable */ PixelType *saveP; PixelType *pStartDst; PixelType *pStartTile; int saveH; afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst, pBase); MROP_INITIALIZE(alu,~0) tileHeight = pTile->drawable.height; tileWidth = pTile->drawable.width; tlwidth = pTile->devKind / sizeof (PixelType); xSrc = pDraw->x + ((xOff % tileWidth) - tileWidth); ySrc = pDraw->y + ((yOff % tileHeight) - tileHeight); while (nbox--) { saveW = pbox->x2 - pbox->x1; iline = (pbox->y1 - ySrc) % tileHeight; psrcT = (PixelType *) pTile->devPrivate.ptr; tileLine = iline * tlwidth; saveH = pbox->y2 - pbox->y1; saveP = afbScanline(pBase, pbox->x1, pbox->y1, nlwidth); for (d = 0; d < depthDst; d++, saveP += sizeDst) { /* @@@ NEXT PLANE @@@ */ if (!(planemask & (1 << d))) continue; h = saveH; pStartDst = saveP; pStartTile = psrcT + tileLine; iy = iline; while (h--) { x = pbox->x1; width = saveW; pdst = pStartDst; while(width > 0) { psrc = pStartTile; w = min(tileWidth, width); if((rem = (x - xSrc) % tileWidth) != 0) { /* if we're in the middle of the tile, get as many bits as will finish the span, or as many as will get to the left edge of the tile, or a longword worth, starting at the appropriate offset in the tile. */ w = min(min(tileWidth - rem, width), BITMAP_SCANLINE_PAD); endinc = rem / BITMAP_SCANLINE_PAD; switch (rropsOS[d]) { case RROP_BLACK: tmpsrc = 0; break; case RROP_WHITE: tmpsrc = ~0; break; case RROP_COPY: getbits ((psrc+endinc), (rem&PIM), w, tmpsrc); break; case RROP_INVERT: getbits ((psrc+endinc), (rem&PIM), w, tmpsrc); tmpsrc = ~tmpsrc; break; } #if (MROP) != Mcopy getbits (pdst, (x & PIM), w, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), w, pdst); if((x & PIM) + w >= PPW) pdst++; } else if(((x & PIM) + w) < PPW) { /* doing < PPW bits is easy, and worth special-casing */ switch (rropsOS[d]) { case RROP_BLACK: tmpsrc = 0; break; case RROP_WHITE: tmpsrc = ~0; break; case RROP_COPY: tmpsrc = *psrc; break; case RROP_INVERT: tmpsrc = ~*psrc; break; } #if (MROP) != Mcopy getbits (pdst, (x & PIM), w, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), w, pdst); } else { /* start at the left edge of the tile, and put down as much as we can */ maskbits(x, w, startmask, endmask, nlMiddle); if (startmask) nstart = PPW - (x & PIM); else nstart = 0; if (endmask) nend = (x + w) & PIM; else nend = 0; srcStartOver = nstart > PLST; if(startmask) { switch (rropsOS[d]) { case RROP_BLACK: tmpsrc = 0; break; case RROP_WHITE: tmpsrc = ~0; break; case RROP_COPY: tmpsrc = *psrc; break; case RROP_INVERT: tmpsrc = ~*psrc; break; } #if (MROP) != Mcopy getbits (pdst, (x & PIM), nstart, tmpdst); tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, (x & PIM), nstart, pdst); pdst++; if(srcStartOver) psrc++; } while(nlMiddle--) { switch (rropsOS[d]) { case RROP_BLACK: tmpsrc = 0; break; case RROP_WHITE: tmpsrc = ~0; break; case RROP_COPY: getbits (psrc, nstart, PPW, tmpsrc); break; case RROP_INVERT: getbits (psrc, nstart, PPW, tmpsrc); tmpsrc = ~tmpsrc; break; } #if (MROP) != Mcopy tmpdst = *pdst; tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif *pdst++ = tmpsrc; /*putbits (tmpsrc, 0, PPW, pdst); pdst++; */ psrc++; } if(endmask) { switch (rropsOS[d]) { case RROP_BLACK: tmpsrc = 0; break; case RROP_WHITE: tmpsrc = ~0; break; case RROP_COPY: getbits (psrc, nstart, nend, tmpsrc); break; case RROP_INVERT: getbits (psrc, nstart, nend, tmpsrc); tmpsrc = ~tmpsrc; break; } #if (MROP) != Mcopy tmpdst = *pdst; tmpsrc = DoMergeRop (tmpsrc, tmpdst); #endif putbits (tmpsrc, 0, nend, pdst); } } x += w; width -= w; } /* while (width > 0) */ pStartDst += nlwidth; if (++iy >= tileHeight) { iy = 0; pStartTile = psrcT; } else pStartTile += tlwidth; } /* while (h) */ } /* for (d = ... ) */ pbox++; } /* for each box */ }