187 lines
5.9 KiB
C
187 lines
5.9 KiB
C
/*
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* $Xorg: mergerop.h,v 1.4 2001/02/09 02:05:18 xorgcvs Exp $
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*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*
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* Author: Keith Packard, MIT X Consortium
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*/
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#ifndef _MERGEROP_H_
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#define _MERGEROP_H_
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#ifndef GXcopy
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#include "X.h"
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#endif
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typedef struct _mergeRopBits {
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unsigned long ca1, cx1, ca2, cx2;
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} mergeRopRec, *mergeRopPtr;
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extern mergeRopRec mergeRopBits[16];
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#define DeclareMergeRop() unsigned long _ca1, _cx1, _ca2, _cx2;
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#define DeclarePrebuiltMergeRop() unsigned long _cca, _ccx;
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#if PPW != PGSZ /* cfb */
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#define InitializeMergeRop(alu,pm) {\
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unsigned long _pm; \
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mergeRopPtr _bits; \
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_pm = PFILL(pm); \
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_bits = &mergeRopBits[alu]; \
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_ca1 = _bits->ca1 & _pm; \
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_cx1 = _bits->cx1 | ~_pm; \
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_ca2 = _bits->ca2 & _pm; \
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_cx2 = _bits->cx2 & _pm; \
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}
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#else /* mfb */
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#define InitializeMergeRop(alu,pm) {\
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mergeRopPtr _bits; \
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_bits = &mergeRopBits[alu]; \
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_ca1 = _bits->ca1; \
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_cx1 = _bits->cx1; \
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_ca2 = _bits->ca2; \
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_cx2 = _bits->cx2; \
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}
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#endif
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/* AND has higher precedence than XOR */
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#define DoMergeRop(src, dst) \
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((dst) & ((src) & _ca1 ^ _cx1) ^ ((src) & _ca2 ^ _cx2))
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#define DoPrebuiltMergeRop(dst) ((dst) & _cca ^ _ccx)
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#define DoMaskPrebuiltMergeRop(dst,mask) \
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((dst) & (_cca | ~(mask)) ^ (_ccx & (mask)))
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#define PrebuildMergeRop(src) ((_cca = (src) & _ca1 ^ _cx1), \
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(_ccx = (src) & _ca2 ^ _cx2))
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#define DoMaskMergeRop(src, dst, mask) \
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((dst) & (((src) & _ca1 ^ _cx1) | ~(mask)) ^ (((src) & _ca2 ^ _cx2) & (mask)))
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#ifndef MROP
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#define MROP 0
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#endif
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#define Mclear (1<<GXclear)
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#define Mand (1<<GXand)
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#define MandReverse (1<<GXandReverse)
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#define Mcopy (1<<GXcopy)
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#define MandInverted (1<<GXandInverted)
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#define Mnoop (1<<GXnoop)
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#define Mxor (1<<GXxor)
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#define Mor (1<<GXor)
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#define Mnor (1<<GXnor)
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#define Mequiv (1<<GXequiv)
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#define Minvert (1<<GXinvert)
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#define MorReverse (1<<GXorReverse)
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#define McopyInverted (1<<GXcopyInverted)
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#define MorInverted (1<<GXorInverted)
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#define Mnand (1<<GXnand)
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#define Mset (1<<GXset)
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#if (MROP) == Mcopy
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#define MROP_DECLARE()
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#define MROP_DECLARE_REG()
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#define MROP_INITIALIZE(alu,pm)
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#define MROP_SOLID(src,dst) (src)
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#define MROP_MASK(src,dst,mask) ((dst) & ~(mask) | (src) & (mask))
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,Copy)
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#endif
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#if (MROP) == McopyInverted
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#define MROP_DECLARE()
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#define MROP_DECLARE_REG()
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#define MROP_INITIALIZE(alu,pm)
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#define MROP_SOLID(src,dst) (~(src))
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#define MROP_MASK(src,dst,mask) ((dst) & ~(mask) | (~(src)) & (mask))
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,CopyInverted)
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#endif
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#if (MROP) == Mxor
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#define MROP_DECLARE()
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#define MROP_DECLARE_REG()
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#define MROP_INITIALIZE(alu,pm)
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#define MROP_SOLID(src,dst) ((src) ^ (dst))
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#define MROP_MASK(src,dst,mask) (((src) & (mask)) ^ (dst))
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,Xor)
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#endif
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#if (MROP) == Mor
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#define MROP_DECLARE()
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#define MROP_DECLARE_REG()
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#define MROP_INITIALIZE(alu,pm)
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#define MROP_SOLID(src,dst) ((src) | (dst))
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#define MROP_MASK(src,dst,mask) (((src) & (mask)) | (dst))
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,Or)
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#endif
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#if (MROP) == (Mcopy|Mxor|MandReverse|Mor)
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#define MROP_DECLARE() unsigned long _ca1, _cx1;
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#define MROP_DECLARE_REG() register MROP_DECLARE()
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#define MROP_INITIALIZE(alu,pm) { \
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mergeRopPtr _bits; \
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_bits = &mergeRopBits[alu]; \
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_ca1 = _bits->ca1; \
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_cx1 = _bits->cx1; \
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}
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#define MROP_SOLID(src,dst) \
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((dst) & ((src) & _ca1 ^ _cx1) ^ (src))
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#define MROP_MASK(src,dst,mask) \
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((dst) & (((src) & _ca1 ^ _cx1) | ~(mask)) ^ ((src) & (mask)))
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,CopyXorAndReverseOr)
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#define MROP_PREBUILD(src) PrebuildMergeRop(src)
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#define MROP_PREBUILT_DECLARE() DeclarePrebuiltMergeRop()
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#define MROP_PREBUILT_SOLID(src,dst) DoPrebuiltMergeRop(dst)
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#define MROP_PREBUILT_MASK(src,dst,mask) DoMaskPrebuiltMergeRop(dst,mask)
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#endif
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#if (MROP) == 0
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#define MROP_DECLARE() DeclareMergeRop()
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#define MROP_DECLARE_REG() register DeclareMergeRop()
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#define MROP_INITIALIZE(alu,pm) InitializeMergeRop(alu,pm)
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#define MROP_SOLID(src,dst) DoMergeRop(src,dst)
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#define MROP_MASK(src,dst,mask) DoMaskMergeRop(src, dst, mask)
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#define MROP_NAME(prefix) MROP_NAME_CAT(prefix,General)
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#define MROP_PREBUILD(src) PrebuildMergeRop(src)
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#define MROP_PREBUILT_DECLARE() DeclarePrebuiltMergeRop()
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#define MROP_PREBUILT_SOLID(src,dst) DoPrebuiltMergeRop(dst)
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#define MROP_PREBUILT_MASK(src,dst,mask) DoMaskPrebuiltMergeRop(dst,mask)
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#endif
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#ifndef MROP_PREBUILD
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#define MROP_PREBUILD(src)
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#define MROP_PREBUILT_DECLARE()
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#define MROP_PREBUILT_SOLID(src,dst) MROP_SOLID(src,dst)
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#define MROP_PREBUILT_MASK(src,dst,mask) MROP_MASK(src,dst,mask)
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#endif
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#if (defined(__STDC__) && !defined(UNIXCPP)) || defined(ANSICPP)
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#define MROP_NAME_CAT(prefix,suffix) prefix##suffix
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#else
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#define MROP_NAME_CAT(prefix,suffix) prefix/**/suffix
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#endif
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#endif
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