040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * Copyright © 1998 Keith Packard
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * Permission to use, copy, modify, distribute, and sell this software and its
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * documentation for any purpose is hereby granted without fee, provided that
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * the above copyright notice appear in all copies and that both that
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * copyright notice and this permission notice appear in supporting
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * documentation, and that the name of Keith Packard not be used in
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * advertising or publicity pertaining to distribution of the software without
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * specific, written prior permission. Keith Packard makes no
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * representations about the suitability of this software for any purpose. It
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * is provided "as is" without express or implied warranty.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * PERFORMANCE OF THIS SOFTWARE.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDeclareMergeRop() FbBits _ca1, _cx1, _ca2, _cx2;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDeclarePrebuiltMergeRop() FbBits _cca, _ccx;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDestInvarientRop(alu,pm) ((pm) == FB_ALLONES && \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDestInvarientMergeRop() (_ca1 == 0 && _cx1 == 0)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync/* AND has higher precedence than XOR */
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (((dst) & (((src) & _ca1) ^ _cx1)) ^ (((src) & _ca2) ^ _cx2))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoDestInvarientMergeRop(src) (((src) & _ca2) ^ _cx2)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (((dst) & ((((src) & _ca1) ^ _cx1) | ~(mask))) ^ ((((src) & _ca2) ^ _cx2) & (mask)))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoLeftMaskByteMergeRop(dst, src, lb, l) { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync FbDoLeftMaskByteRRop(dst,lb,l,((src) & _ca1) ^ _cx1,__xor); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoRightMaskByteMergeRop(dst, src, rb, r) { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync FbDoRightMaskByteRRop(dst,rb,r,((src) & _ca1) ^ _cx1,__xor); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoRRop(dst, and, xor) (((dst) & (and)) ^ (xor))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * Take a single bit (0 or 1) and generate a full mask
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define fbXorT(rop,fg,pm,t) ((((fg) & fbFillFromBit((rop) >> 1,t)) | \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define fbAndT(rop,fg,pm,t) ((((fg) & fbFillFromBit (rop ^ (rop>>1),t)) | \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (~(fg) & fbFillFromBit((rop>>2) ^ (rop>>3),t))) | \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define fbXorStip(rop,fg,pm) fbXorT(rop,fg,pm,FbStip)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define fbAndStip(rop,fg,pm) fbAndT(rop,fg,pm,FbStip)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * Stippling operations;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncextern const FbBits fbStipple16Bits[256]; /* half of table */
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (fbStipple16Bits[(b)&0xff] | fbStipple16Bits[(b) >> 8] << FB_HALFUNIT)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (FbDoRRop(dst, fa, fx) & b) | (FbDoRRop(dst, ba, bx) & ~b)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbStippleRRopMask(dst, b, fa, fx, ba, bx, m) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (FbDoMaskRRop(dst, fa, fx, m) & (b)) | (FbDoMaskRRop(dst, ba, bx, m) & ~(b))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoLeftMaskByteStippleRRop(dst, b, fa, fx, ba, bx, lb, l) { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync FbDoLeftMaskByteRRop(dst, lb, l, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbDoRightMaskByteStippleRRop(dst, b, fa, fx, ba, bx, rb, r) { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync FbDoRightMaskByteRRop(dst, rb, r, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbOpaqueStipple(b, fg, bg) (((fg) & (b)) | ((bg) & ~(b)))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * Compute rop for using tile code for 1-bit dest stipples; modifies
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync * existing rop to flip depending on pixel values
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbStipple1RopPick(alu,b) (((alu) >> (2 - (((b) & 1) << 1))) & 3)
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define FbOpaqueStipple1Rop(alu,fg,bg) (FbStipple1RopPick(alu,fg) | \