863 lines
24 KiB
C
863 lines
24 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 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, int axis, int x1, int y1, int e, int e1, int e3, 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 =
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((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff);
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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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majorStep = signdx;
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minorStep = bitsStride;
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}
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else {
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majorStep = bitsStride;
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minorStep = signdx;
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}
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while (len--) {
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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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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, int axis, int x1, int y1, int e, int e1, int e3, 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 =
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((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff);
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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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majorStep = signdx;
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minorStep = bitsStride;
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}
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else {
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majorStep = bitsStride;
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minorStep = signdx;
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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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if (!even)
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goto doubleOdd;
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for (;;) {
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len -= dashlen;
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while (dashlen--) {
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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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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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STORE(bits, xorbg);
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bits += majorStep;
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if ((e += e1) >= 0) {
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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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if (!even)
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goto onOffOdd;
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for (;;) {
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len -= dashlen;
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while (dashlen--) {
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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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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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bits += majorStep;
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if ((e += e1) >= 0) {
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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, int xorg, int yorg, int xoff, int yoff, FbBits and, 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);
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if (and == 0) {
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while (npt--) {
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pt = *pts++;
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if (!isClipped(pt, ul, lr)) {
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point = bits + intToY(pt) * bitsStride + intToX(pt);
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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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while (npt--) {
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pt = *pts++;
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if (!isClipped(pt, ul, lr)) {
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point = bits + intToY(pt) * bitsStride + intToX(pt);
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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, xArc * arc, int drawX, int drawY, FbBits and, 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);
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info.xorgo = (info.xorgo + drawX);
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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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if (andBits == 0) {
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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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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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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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int xoffset = bitsStride;
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UNIT *yorghb = yorgp + (info.h * bitsStride) + info.xorg;
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UNIT *yorgohb = yorghb - info.h;
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yorgp += info.xorg;
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yorgop += info.xorg;
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yorghb += info.h;
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while (1) {
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if (andBits == 0) {
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ARCCOPY(yorgp + yoffset + x);
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ARCCOPY(yorgp + yoffset - x);
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ARCCOPY(yorgop - yoffset - x);
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ARCCOPY(yorgop - yoffset + x);
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}
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else {
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ARCRROP(yorgp + yoffset + x);
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ARCRROP(yorgp + yoffset - x);
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ARCRROP(yorgop - yoffset - x);
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ARCRROP(yorgop - yoffset + x);
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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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ARCCOPY(yorghb - xoffset - y);
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ARCCOPY(yorgohb - xoffset + y);
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ARCCOPY(yorgohb + xoffset + y);
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ARCCOPY(yorghb + xoffset - y);
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}
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else {
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ARCRROP(yorghb - xoffset - y);
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ARCRROP(yorgohb - xoffset + y);
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ARCRROP(yorgohb + xoffset + y);
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ARCRROP(yorghb + xoffset - y);
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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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}
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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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while (y < info.h || x < info.w) {
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MIARCOCTANTSHIFT(dyoffset = bitsStride;
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);
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if (andBits == 0) {
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ARCCOPY(yorgp + yoffset + info.xorg + x);
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ARCCOPY(yorgp + yoffset + info.xorgo - x);
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ARCCOPY(yorgop - yoffset + info.xorgo - x);
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ARCCOPY(yorgop - yoffset + info.xorg + x);
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}
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else {
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ARCRROP(yorgp + yoffset + info.xorg + x);
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ARCRROP(yorgp + yoffset + info.xorgo - x);
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ARCRROP(yorgop - yoffset + info.xorgo - x);
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ARCRROP(yorgop - yoffset + info.xorg + x);
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}
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MIARCSTEP(yoffset += dyoffset;
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, yoffset += bitsStride;
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);
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}
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}
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else {
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while (y < info.h || x < info.w) {
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MIARCOCTANTSHIFT(dyoffset = bitsStride;
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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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info.start = info.altstart;
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}
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if (andBits == 0) {
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if (mask & 1)
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ARCCOPY(yorgp + yoffset + info.xorg + x);
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if (mask & 2)
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ARCCOPY(yorgp + yoffset + info.xorgo - x);
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if (mask & 4)
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ARCCOPY(yorgop - yoffset + info.xorgo - x);
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if (mask & 8)
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ARCCOPY(yorgop - yoffset + info.xorg + x);
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}
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else {
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if (mask & 1)
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ARCRROP(yorgp + yoffset + info.xorg + x);
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if (mask & 2)
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ARCRROP(yorgp + yoffset + info.xorgo - x);
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if (mask & 4)
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ARCRROP(yorgop - yoffset + info.xorgo - x);
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if (mask & 8)
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ARCRROP(yorgop - yoffset + info.xorg + x);
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}
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if ((x == info.end.x) || (y == info.end.y)) {
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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;
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, yoffset += bitsStride;
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);
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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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if (mask & 1)
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ARCCOPY(yorgp + yoffset + info.xorg + x);
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if (mask & 4)
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ARCCOPY(yorgop - yoffset + info.xorgo - x);
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if (arc->height & 1) {
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if (mask & 2)
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ARCCOPY(yorgp + yoffset + info.xorgo - x);
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if (mask & 8)
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ARCCOPY(yorgop - yoffset + info.xorg + x);
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}
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}
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else {
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if (mask & 1)
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ARCRROP(yorgp + yoffset + info.xorg + x);
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if (mask & 4)
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ARCRROP(yorgop - yoffset + info.xorgo - x);
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if (arc->height & 1) {
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if (mask & 2)
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ARCRROP(yorgp + yoffset + info.xorgo - x);
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if (mask & 8)
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ARCRROP(yorgop - yoffset + info.xorg + x);
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}
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}
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}
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#undef ARCCOPY
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#undef ARCRROP
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#endif
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#ifdef GLYPH
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#if BITMAP_BIT_ORDER == LSBFirst
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#define WRITE_ADDR1(n) (n)
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#define WRITE_ADDR2(n) (n)
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#define WRITE_ADDR4(n) (n)
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#else
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#define WRITE_ADDR1(n) ((n) ^ 3)
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#define WRITE_ADDR2(n) ((n) ^ 2)
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#define WRITE_ADDR4(n) ((n))
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#endif
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#define WRITE1(d,n,fg) WRITE(d + WRITE_ADDR1(n), (BITS) (fg))
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#ifdef BITS2
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#define WRITE2(d,n,fg) WRITE((BITS2 *) &((d)[WRITE_ADDR2(n)]), (BITS2) (fg))
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#else
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#define WRITE2(d,n,fg) (WRITE1(d,n,fg), WRITE1(d,(n)+1,fg))
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#endif
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#ifdef BITS4
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#define WRITE4(d,n,fg) WRITE((BITS4 *) &((d)[WRITE_ADDR4(n)]), (BITS4) (fg))
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#else
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#define WRITE4(d,n,fg) (WRITE2(d,n,fg), WRITE2(d,(n)+2,fg))
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#endif
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void
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GLYPH(FbBits * dstBits,
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FbStride dstStride,
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int dstBpp, FbStip * stipple, FbBits fg, int x, int height)
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{
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int lshift;
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FbStip bits;
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BITS *dstLine;
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BITS *dst;
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int n;
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int shift;
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dstLine = (BITS *) dstBits;
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dstLine += x & ~3;
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dstStride *= (sizeof(FbBits) / sizeof(BITS));
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shift = x & 3;
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lshift = 4 - shift;
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while (height--) {
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bits = *stipple++;
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dst = (BITS *) dstLine;
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n = lshift;
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while (bits) {
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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 = RegionExtents(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);
|
|
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);
|
|
for (;;) {
|
|
CalcLineDeltas(intToX(pt1), intToY(pt1),
|
|
intToX(pt2), intToY(pt2),
|
|
len, e1, stepmajor, stepminor, 1, bitsStride,
|
|
octant);
|
|
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 = RegionExtents(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);
|
|
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) {
|
|
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);
|
|
width = (x2 - x1) * (sizeof(UNIT) * 8);
|
|
|
|
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 {
|
|
bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1);
|
|
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 STORE
|
|
#undef RROP
|
|
#undef UNIT
|
|
#undef USE_SOLID
|
|
|
|
#undef isClipped
|