972 lines
20 KiB
C
972 lines
20 KiB
C
/*
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* Copyright © 1998 Keith Packard
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*
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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, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This file defines functions for drawing some primitives using
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* underlying datatypes instead of masks
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*/
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#define isClipped(c,ul,lr) (((c) | ((c) - (ul)) | ((lr) - (c))) & 0x80008000)
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#ifdef BITSMUL
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#define MUL BITSMUL
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#else
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#define MUL 1
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#endif
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#ifdef BITSSTORE
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#define STORE(b,x) BITSSTORE(b,x)
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#else
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#define STORE(b,x) WRITE((b), (x))
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#endif
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#ifdef BITSRROP
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#define RROP(b,a,x) BITSRROP(b,a,x)
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#else
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#define RROP(b,a,x) WRITE((b), FbDoRRop (READ(b), (a), (x)))
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#endif
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#ifdef BITSUNIT
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#define UNIT BITSUNIT
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#define USE_SOLID
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#else
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#define UNIT BITS
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#endif
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/*
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* Define the following before including this file:
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*
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* BRESSOLID name of function for drawing a solid segment
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* BRESDASH name of function for drawing a dashed segment
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* DOTS name of function for drawing dots
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* ARC name of function for drawing a solid arc
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* BITS type of underlying unit
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*/
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#ifdef BRESSOLID
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void
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BRESSOLID (DrawablePtr pDrawable,
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GCPtr pGC,
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int dashOffset,
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int signdx,
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int signdy,
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int axis,
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int x1,
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int y1,
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int e,
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int e1,
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int e3,
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int len)
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{
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FbBits *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
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UNIT *bits;
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FbStride bitsStride;
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FbStride majorStep, minorStep;
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BITS xor = (BITS) pPriv->xor;
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fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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bits = ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL;
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bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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if (signdy < 0)
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bitsStride = -bitsStride;
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if (axis == X_AXIS)
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{
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majorStep = signdx * MUL;
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minorStep = bitsStride;
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}
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else
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{
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majorStep = bitsStride;
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minorStep = signdx * MUL;
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}
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while (len--)
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{
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STORE(bits,xor);
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bits += majorStep;
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e += e1;
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if (e >= 0)
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{
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bits += minorStep;
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e += e3;
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}
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}
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fbFinishAccess (pDrawable);
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}
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#endif
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#ifdef BRESDASH
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void
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BRESDASH (DrawablePtr pDrawable,
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GCPtr pGC,
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int dashOffset,
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int signdx,
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int signdy,
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int axis,
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int x1,
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int y1,
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int e,
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int e1,
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int e3,
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int len)
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{
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FbBits *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
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UNIT *bits;
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FbStride bitsStride;
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FbStride majorStep, minorStep;
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BITS xorfg, xorbg;
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FbDashDeclare;
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int dashlen;
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Bool even;
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Bool doOdd;
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fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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doOdd = pGC->lineStyle == LineDoubleDash;
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xorfg = (BITS) pPriv->xor;
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xorbg = (BITS) pPriv->bgxor;
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FbDashInit (pGC, pPriv, dashOffset, dashlen, even);
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bits = ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL;
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bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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if (signdy < 0)
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bitsStride = -bitsStride;
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if (axis == X_AXIS)
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{
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majorStep = signdx * MUL;
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minorStep = bitsStride;
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}
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else
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{
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majorStep = bitsStride;
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minorStep = signdx * MUL;
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}
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if (dashlen >= len)
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dashlen = len;
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if (doOdd)
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{
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if (!even)
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goto doubleOdd;
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for (;;)
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{
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len -= dashlen;
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while (dashlen--)
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{
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STORE(bits,xorfg);
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bits += majorStep;
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if ((e += e1) >= 0)
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{
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e += e3;
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bits += minorStep;
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}
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}
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if (!len)
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break;
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FbDashNextEven(dashlen);
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if (dashlen >= len)
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dashlen = len;
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doubleOdd:
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len -= dashlen;
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while (dashlen--)
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{
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STORE(bits,xorbg);
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bits += majorStep;
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if ((e += e1) >= 0)
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{
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e += e3;
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bits += minorStep;
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}
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}
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if (!len)
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break;
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FbDashNextOdd(dashlen);
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if (dashlen >= len)
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dashlen = len;
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}
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}
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else
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{
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if (!even)
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goto onOffOdd;
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for (;;)
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{
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len -= dashlen;
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while (dashlen--)
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{
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STORE(bits,xorfg);
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bits += majorStep;
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if ((e += e1) >= 0)
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{
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e += e3;
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bits += minorStep;
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}
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}
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if (!len)
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break;
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FbDashNextEven (dashlen);
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if (dashlen >= len)
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dashlen = len;
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onOffOdd:
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len -= dashlen;
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while (dashlen--)
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{
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bits += majorStep;
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if ((e += e1) >= 0)
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{
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e += e3;
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bits += minorStep;
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}
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}
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if (!len)
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break;
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FbDashNextOdd (dashlen);
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if (dashlen >= len)
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dashlen = len;
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}
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}
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fbFinishAccess (pDrawable);
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}
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#endif
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#ifdef DOTS
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void
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DOTS (FbBits *dst,
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FbStride dstStride,
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int dstBpp,
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BoxPtr pBox,
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xPoint *ptsOrig,
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int npt,
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int xorg,
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int yorg,
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int xoff,
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int yoff,
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FbBits and,
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FbBits xor)
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{
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INT32 *pts = (INT32 *) ptsOrig;
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UNIT *bits = (UNIT *) dst;
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UNIT *point;
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BITS bxor = (BITS) xor;
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BITS band = (BITS) and;
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FbStride bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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INT32 ul, lr;
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INT32 pt;
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ul = coordToInt(pBox->x1 - xorg, pBox->y1 - yorg);
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lr = coordToInt(pBox->x2 - xorg - 1, pBox->y2 - yorg - 1);
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bits += bitsStride * (yorg + yoff) + (xorg + xoff) * MUL;
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if (and == 0)
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{
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while (npt--)
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{
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pt = *pts++;
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if (!isClipped(pt,ul,lr))
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{
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point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL;
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STORE(point,bxor);
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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 (npt--)
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{
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pt = *pts++;
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if (!isClipped(pt,ul,lr))
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{
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point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL;
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RROP(point,band,bxor);
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}
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}
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}
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}
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#endif
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#ifdef ARC
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#define ARCCOPY(d) STORE(d,xorBits)
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#define ARCRROP(d) RROP(d,andBits,xorBits)
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void
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ARC (FbBits *dst,
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FbStride dstStride,
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int dstBpp,
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xArc *arc,
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int drawX,
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int drawY,
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FbBits and,
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FbBits xor)
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{
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UNIT *bits;
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FbStride bitsStride;
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miZeroArcRec info;
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Bool do360;
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int x;
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UNIT *yorgp, *yorgop;
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BITS andBits, xorBits;
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int yoffset, dyoffset;
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int y, a, b, d, mask;
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int k1, k3, dx, dy;
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bits = (UNIT *) dst;
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bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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andBits = (BITS) and;
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xorBits = (BITS) xor;
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do360 = miZeroArcSetup(arc, &info, TRUE);
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yorgp = bits + ((info.yorg + drawY) * bitsStride);
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yorgop = bits + ((info.yorgo + drawY) * bitsStride);
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info.xorg = (info.xorg + drawX) * MUL;
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info.xorgo = (info.xorgo + drawX) * MUL;
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MIARCSETUP();
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yoffset = y ? bitsStride : 0;
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dyoffset = 0;
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mask = info.initialMask;
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if (!(arc->width & 1))
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{
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if (andBits == 0)
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{
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if (mask & 2)
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ARCCOPY(yorgp + info.xorgo);
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if (mask & 8)
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ARCCOPY(yorgop + info.xorgo);
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}
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else
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{
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if (mask & 2)
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ARCRROP(yorgp + info.xorgo);
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if (mask & 8)
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ARCRROP(yorgop + info.xorgo);
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}
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}
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if (!info.end.x || !info.end.y)
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{
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mask = info.end.mask;
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info.end = info.altend;
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}
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if (do360 && (arc->width == arc->height) && !(arc->width & 1))
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{
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int xoffset = bitsStride;
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UNIT *yorghb = yorgp + (info.h * bitsStride) + info.xorg;
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UNIT *yorgohb = yorghb - info.h * MUL;
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yorgp += info.xorg;
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yorgop += info.xorg;
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yorghb += info.h * MUL;
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while (1)
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{
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if (andBits == 0)
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{
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ARCCOPY(yorgp + yoffset + x * MUL);
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ARCCOPY(yorgp + yoffset - x * MUL);
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ARCCOPY(yorgop - yoffset - x * MUL);
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ARCCOPY(yorgop - yoffset + x * MUL);
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}
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else
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{
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ARCRROP(yorgp + yoffset + x * MUL);
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ARCRROP(yorgp + yoffset - x * MUL);
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ARCRROP(yorgop - yoffset - x * MUL);
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ARCRROP(yorgop - yoffset + x * MUL);
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}
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if (a < 0)
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break;
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if (andBits == 0)
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{
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ARCCOPY(yorghb - xoffset - y * MUL);
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ARCCOPY(yorgohb - xoffset + y * MUL);
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ARCCOPY(yorgohb + xoffset + y * MUL);
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ARCCOPY(yorghb + xoffset - y * MUL);
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}
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else
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{
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ARCRROP(yorghb - xoffset - y * MUL);
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ARCRROP(yorgohb - xoffset + y * MUL);
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ARCRROP(yorgohb + xoffset + y * MUL);
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ARCRROP(yorghb + xoffset - y * MUL);
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}
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xoffset += bitsStride;
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MIARCCIRCLESTEP(yoffset += bitsStride;);
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}
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yorgp -= info.xorg;
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yorgop -= info.xorg;
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x = info.w;
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yoffset = info.h * bitsStride;
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}
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else if (do360)
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{
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while (y < info.h || x < info.w)
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{
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MIARCOCTANTSHIFT(dyoffset = bitsStride;);
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if (andBits == 0)
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{
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ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
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ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
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ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
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ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
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}
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else
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{
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ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
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ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
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ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
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ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
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}
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MIARCSTEP(yoffset += dyoffset;, yoffset += bitsStride;);
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}
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}
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else
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{
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while (y < info.h || x < info.w)
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{
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MIARCOCTANTSHIFT(dyoffset = bitsStride;);
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if ((x == info.start.x) || (y == info.start.y))
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{
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mask = info.start.mask;
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info.start = info.altstart;
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}
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if (andBits == 0)
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{
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if (mask & 1)
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ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
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if (mask & 2)
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ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
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if (mask & 4)
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ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
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if (mask & 8)
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ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
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}
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else
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{
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if (mask & 1)
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ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
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if (mask & 2)
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ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
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if (mask & 4)
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ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
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if (mask & 8)
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ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
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}
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if ((x == info.end.x) || (y == info.end.y))
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{
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mask = info.end.mask;
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info.end = info.altend;
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}
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MIARCSTEP(yoffset += dyoffset;, yoffset += bitsStride;);
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}
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}
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if ((x == info.start.x) || (y == info.start.y))
|
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mask = info.start.mask;
|
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if (andBits == 0)
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{
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if (mask & 1)
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ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
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if (mask & 4)
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ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
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if (arc->height & 1)
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{
|
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if (mask & 2)
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ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
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if (mask & 8)
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ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
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}
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}
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else
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{
|
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if (mask & 1)
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ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
|
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if (mask & 4)
|
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ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
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if (arc->height & 1)
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{
|
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if (mask & 2)
|
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ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
|
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if (mask & 8)
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ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
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}
|
|
}
|
|
}
|
|
#undef ARCCOPY
|
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#undef ARCRROP
|
|
#endif
|
|
|
|
#ifdef GLYPH
|
|
#if BITMAP_BIT_ORDER == LSBFirst
|
|
# define WRITE_ADDR1(n) (n)
|
|
# define WRITE_ADDR2(n) (n)
|
|
# define WRITE_ADDR4(n) (n)
|
|
#else
|
|
# define WRITE_ADDR1(n) ((n) ^ 3)
|
|
# define WRITE_ADDR2(n) ((n) ^ 2)
|
|
# define WRITE_ADDR4(n) ((n))
|
|
#endif
|
|
|
|
#define WRITE1(d,n,fg) WRITE(d + WRITE_ADDR1(n), (BITS) (fg))
|
|
|
|
#ifdef BITS2
|
|
# define WRITE2(d,n,fg) WRITE((BITS2 *) &((d)[WRITE_ADDR2(n)]), (BITS2) (fg))
|
|
#else
|
|
# define WRITE2(d,n,fg) (WRITE1(d,n,fg), WRITE1(d,(n)+1,fg))
|
|
#endif
|
|
|
|
#ifdef BITS4
|
|
# define WRITE4(d,n,fg) WRITE((BITS4 *) &((d)[WRITE_ADDR4(n)]), (BITS4) (fg))
|
|
#else
|
|
# define WRITE4(d,n,fg) (WRITE2(d,n,fg), WRITE2(d,(n)+2,fg))
|
|
#endif
|
|
|
|
void
|
|
GLYPH (FbBits *dstBits,
|
|
FbStride dstStride,
|
|
int dstBpp,
|
|
FbStip *stipple,
|
|
FbBits fg,
|
|
int x,
|
|
int height)
|
|
{
|
|
int lshift;
|
|
FbStip bits;
|
|
BITS *dstLine;
|
|
BITS *dst;
|
|
int n;
|
|
int shift;
|
|
|
|
dstLine = (BITS *) dstBits;
|
|
dstLine += x & ~3;
|
|
dstStride *= (sizeof (FbBits) / sizeof (BITS));
|
|
shift = x & 3;
|
|
lshift = 4 - shift;
|
|
while (height--)
|
|
{
|
|
bits = *stipple++;
|
|
dst = (BITS *) dstLine;
|
|
n = lshift;
|
|
while (bits)
|
|
{
|
|
switch (FbStipMoveLsb (FbLeftStipBits (bits, n), 4, n)) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
WRITE1(dst,0,fg);
|
|
break;
|
|
case 2:
|
|
WRITE1(dst,1,fg);
|
|
break;
|
|
case 3:
|
|
WRITE2(dst,0,fg);
|
|
break;
|
|
case 4:
|
|
WRITE1(dst,2,fg);
|
|
break;
|
|
case 5:
|
|
WRITE1(dst,0,fg);
|
|
WRITE1(dst,2,fg);
|
|
break;
|
|
case 6:
|
|
WRITE1(dst,1,fg);
|
|
WRITE1(dst,2,fg);
|
|
break;
|
|
case 7:
|
|
WRITE2(dst,0,fg);
|
|
WRITE1(dst,2,fg);
|
|
break;
|
|
case 8:
|
|
WRITE1(dst,3,fg);
|
|
break;
|
|
case 9:
|
|
WRITE1(dst,0,fg);
|
|
WRITE1(dst,3,fg);
|
|
break;
|
|
case 10:
|
|
WRITE1(dst,1,fg);
|
|
WRITE1(dst,3,fg);
|
|
break;
|
|
case 11:
|
|
WRITE2(dst,0,fg);
|
|
WRITE1(dst,3,fg);
|
|
break;
|
|
case 12:
|
|
WRITE2(dst,2,fg);
|
|
break;
|
|
case 13:
|
|
WRITE1(dst,0,fg);
|
|
WRITE2(dst,2,fg);
|
|
break;
|
|
case 14:
|
|
WRITE1(dst,1,fg);
|
|
WRITE2(dst,2,fg);
|
|
break;
|
|
case 15:
|
|
WRITE4(dst,0,fg);
|
|
break;
|
|
}
|
|
bits = FbStipLeft (bits, n);
|
|
n = 4;
|
|
dst += 4;
|
|
}
|
|
dstLine += dstStride;
|
|
}
|
|
}
|
|
#undef WRITE_ADDR1
|
|
#undef WRITE_ADDR2
|
|
#undef WRITE_ADDR4
|
|
#undef WRITE1
|
|
#undef WRITE2
|
|
#undef WRITE4
|
|
|
|
#endif
|
|
|
|
#ifdef POLYLINE
|
|
void
|
|
POLYLINE (DrawablePtr pDrawable,
|
|
GCPtr pGC,
|
|
int mode,
|
|
int npt,
|
|
DDXPointPtr ptsOrig)
|
|
{
|
|
INT32 *pts = (INT32 *) ptsOrig;
|
|
int xoff = pDrawable->x;
|
|
int yoff = pDrawable->y;
|
|
unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
|
|
BoxPtr pBox = REGION_EXTENTS (pDrawable->pScreen, fbGetCompositeClip (pGC));
|
|
|
|
FbBits *dst;
|
|
int dstStride;
|
|
int dstBpp;
|
|
int dstXoff, dstYoff;
|
|
|
|
UNIT *bits, *bitsBase;
|
|
FbStride bitsStride;
|
|
BITS xor = fbGetGCPrivate(pGC)->xor;
|
|
BITS and = fbGetGCPrivate(pGC)->and;
|
|
int dashoffset = 0;
|
|
|
|
INT32 ul, lr;
|
|
INT32 pt1, pt2;
|
|
|
|
int e, e1, e3, len;
|
|
int stepmajor, stepminor;
|
|
int octant;
|
|
|
|
if (mode == CoordModePrevious)
|
|
fbFixCoordModePrevious (npt, ptsOrig);
|
|
|
|
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|
bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
|
|
bitsBase = ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL;
|
|
ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff);
|
|
lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1);
|
|
|
|
pt1 = *pts++;
|
|
npt--;
|
|
pt2 = *pts++;
|
|
npt--;
|
|
for (;;)
|
|
{
|
|
if (isClipped (pt1, ul, lr) | isClipped (pt2, ul, lr))
|
|
{
|
|
fbSegment (pDrawable, pGC,
|
|
intToX(pt1) + xoff, intToY(pt1) + yoff,
|
|
intToX(pt2) + xoff, intToY(pt2) + yoff,
|
|
npt == 0 && pGC->capStyle != CapNotLast,
|
|
&dashoffset);
|
|
if (!npt) {
|
|
fbFinishAccess (pDrawable);
|
|
return;
|
|
}
|
|
pt1 = pt2;
|
|
pt2 = *pts++;
|
|
npt--;
|
|
}
|
|
else
|
|
{
|
|
bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL;
|
|
for (;;)
|
|
{
|
|
CalcLineDeltas (intToX(pt1), intToY(pt1),
|
|
intToX(pt2), intToY(pt2),
|
|
len, e1, stepmajor, stepminor, 1, bitsStride,
|
|
octant);
|
|
stepmajor *= MUL;
|
|
if (len < e1)
|
|
{
|
|
e3 = len;
|
|
len = e1;
|
|
e1 = e3;
|
|
|
|
e3 = stepminor;
|
|
stepminor = stepmajor;
|
|
stepmajor = e3;
|
|
SetYMajorOctant(octant);
|
|
}
|
|
e = -len;
|
|
e1 <<= 1;
|
|
e3 = e << 1;
|
|
FIXUP_ERROR (e, octant, bias);
|
|
if (and == 0)
|
|
{
|
|
while (len--)
|
|
{
|
|
STORE(bits,xor);
|
|
bits += stepmajor;
|
|
e += e1;
|
|
if (e >= 0)
|
|
{
|
|
bits += stepminor;
|
|
e += e3;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (len--)
|
|
{
|
|
RROP(bits,and,xor);
|
|
bits += stepmajor;
|
|
e += e1;
|
|
if (e >= 0)
|
|
{
|
|
bits += stepminor;
|
|
e += e3;
|
|
}
|
|
}
|
|
}
|
|
if (!npt)
|
|
{
|
|
if (pGC->capStyle != CapNotLast &&
|
|
pt2 != *((INT32 *) ptsOrig))
|
|
{
|
|
RROP(bits,and,xor);
|
|
}
|
|
fbFinishAccess (pDrawable);
|
|
return;
|
|
}
|
|
pt1 = pt2;
|
|
pt2 = *pts++;
|
|
--npt;
|
|
if (isClipped (pt2, ul, lr))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fbFinishAccess (pDrawable);
|
|
}
|
|
#endif
|
|
|
|
#ifdef POLYSEGMENT
|
|
void
|
|
POLYSEGMENT (DrawablePtr pDrawable,
|
|
GCPtr pGC,
|
|
int nseg,
|
|
xSegment *pseg)
|
|
{
|
|
INT32 *pts = (INT32 *) pseg;
|
|
int xoff = pDrawable->x;
|
|
int yoff = pDrawable->y;
|
|
unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
|
|
BoxPtr pBox = REGION_EXTENTS (pDrawable->pScreen, fbGetCompositeClip (pGC));
|
|
|
|
FbBits *dst;
|
|
int dstStride;
|
|
int dstBpp;
|
|
int dstXoff, dstYoff;
|
|
|
|
UNIT *bits, *bitsBase;
|
|
FbStride bitsStride;
|
|
FbBits xorBits = fbGetGCPrivate(pGC)->xor;
|
|
FbBits andBits = fbGetGCPrivate(pGC)->and;
|
|
BITS xor = xorBits;
|
|
BITS and = andBits;
|
|
int dashoffset = 0;
|
|
|
|
INT32 ul, lr;
|
|
INT32 pt1, pt2;
|
|
|
|
int e, e1, e3, len;
|
|
int stepmajor, stepminor;
|
|
int octant;
|
|
Bool capNotLast;
|
|
|
|
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|
bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
|
|
bitsBase = ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL;
|
|
ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff);
|
|
lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1);
|
|
|
|
capNotLast = pGC->capStyle == CapNotLast;
|
|
|
|
while (nseg--)
|
|
{
|
|
pt1 = *pts++;
|
|
pt2 = *pts++;
|
|
if (isClipped (pt1, ul, lr) | isClipped (pt2, ul, lr))
|
|
{
|
|
fbSegment (pDrawable, pGC,
|
|
intToX(pt1) + xoff, intToY(pt1) + yoff,
|
|
intToX(pt2) + xoff, intToY(pt2) + yoff,
|
|
!capNotLast, &dashoffset);
|
|
}
|
|
else
|
|
{
|
|
CalcLineDeltas (intToX(pt1), intToY(pt1),
|
|
intToX(pt2), intToY(pt2),
|
|
len, e1, stepmajor, stepminor, 1, bitsStride,
|
|
octant);
|
|
if (e1 == 0 && len > 3
|
|
#if MUL != 1
|
|
&& FbCheck24Pix(and) && FbCheck24Pix(xor)
|
|
#endif
|
|
)
|
|
{
|
|
int x1, x2;
|
|
FbBits *dstLine;
|
|
int dstX, width;
|
|
FbBits startmask, endmask;
|
|
int nmiddle;
|
|
|
|
if (stepmajor < 0)
|
|
{
|
|
x1 = intToX(pt2);
|
|
x2 = intToX(pt1) + 1;
|
|
if (capNotLast)
|
|
x1++;
|
|
}
|
|
else
|
|
{
|
|
x1 = intToX(pt1);
|
|
x2 = intToX(pt2);
|
|
if (!capNotLast)
|
|
x2++;
|
|
}
|
|
dstX = (x1 + xoff + dstXoff) * (sizeof (UNIT) * 8 * MUL);
|
|
width = (x2 - x1) * (sizeof (UNIT) * 8 * MUL);
|
|
|
|
dstLine = dst + (intToY(pt1) + yoff + dstYoff) * dstStride;
|
|
dstLine += dstX >> FB_SHIFT;
|
|
dstX &= FB_MASK;
|
|
FbMaskBits (dstX, width, startmask, nmiddle, endmask);
|
|
if (startmask)
|
|
{
|
|
WRITE(dstLine, FbDoMaskRRop (READ(dstLine), andBits, xorBits, startmask));
|
|
dstLine++;
|
|
}
|
|
if (!andBits)
|
|
while (nmiddle--)
|
|
WRITE(dstLine++, xorBits);
|
|
else
|
|
while (nmiddle--)
|
|
{
|
|
WRITE(dstLine, FbDoRRop (READ(dstLine), andBits, xorBits));
|
|
dstLine++;
|
|
}
|
|
if (endmask)
|
|
WRITE(dstLine, FbDoMaskRRop (READ(dstLine), andBits, xorBits, endmask));
|
|
}
|
|
else
|
|
{
|
|
stepmajor *= MUL;
|
|
bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL;
|
|
if (len < e1)
|
|
{
|
|
e3 = len;
|
|
len = e1;
|
|
e1 = e3;
|
|
|
|
e3 = stepminor;
|
|
stepminor = stepmajor;
|
|
stepmajor = e3;
|
|
SetYMajorOctant(octant);
|
|
}
|
|
e = -len;
|
|
e1 <<= 1;
|
|
e3 = e << 1;
|
|
FIXUP_ERROR (e, octant, bias);
|
|
if (!capNotLast)
|
|
len++;
|
|
if (and == 0)
|
|
{
|
|
while (len--)
|
|
{
|
|
STORE(bits,xor);
|
|
bits += stepmajor;
|
|
e += e1;
|
|
if (e >= 0)
|
|
{
|
|
bits += stepminor;
|
|
e += e3;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (len--)
|
|
{
|
|
RROP(bits,and,xor);
|
|
bits += stepmajor;
|
|
e += e1;
|
|
if (e >= 0)
|
|
{
|
|
bits += stepminor;
|
|
e += e3;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fbFinishAccess (pDrawable);
|
|
}
|
|
#endif
|
|
|
|
#undef MUL
|
|
#undef STORE
|
|
#undef RROP
|
|
#undef UNIT
|
|
#undef USE_SOLID
|
|
|
|
#undef isClipped
|