xserver-multidpi/fb/fbrop.h
Keith Packard 9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

138 lines
4.8 KiB
C

/*
* Copyright © 1998 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _FBROP_H_
#define _FBROP_H_
typedef struct _mergeRopBits {
FbBits ca1, cx1, ca2, cx2;
} FbMergeRopRec, *FbMergeRopPtr;
extern _X_EXPORT const FbMergeRopRec FbMergeRopBits[16];
#define FbDeclareMergeRop() FbBits _ca1, _cx1, _ca2, _cx2;
#define FbDeclarePrebuiltMergeRop() FbBits _cca, _ccx;
#define FbInitializeMergeRop(alu,pm) {\
const FbMergeRopRec *_bits; \
_bits = &FbMergeRopBits[alu]; \
_ca1 = _bits->ca1 & pm; \
_cx1 = _bits->cx1 | ~pm; \
_ca2 = _bits->ca2 & pm; \
_cx2 = _bits->cx2 & pm; \
}
#define FbDestInvarientRop(alu,pm) ((pm) == FB_ALLONES && \
(((alu) >> 1 & 5) == ((alu) & 5)))
#define FbDestInvarientMergeRop() (_ca1 == 0 && _cx1 == 0)
/* AND has higher precedence than XOR */
#define FbDoMergeRop(src, dst) \
(((dst) & (((src) & _ca1) ^ _cx1)) ^ (((src) & _ca2) ^ _cx2))
#define FbDoDestInvarientMergeRop(src) (((src) & _ca2) ^ _cx2)
#define FbDoMaskMergeRop(src, dst, mask) \
(((dst) & ((((src) & _ca1) ^ _cx1) | ~(mask))) ^ ((((src) & _ca2) ^ _cx2) & (mask)))
#define FbDoLeftMaskByteMergeRop(dst, src, lb, l) { \
FbBits __xor = ((src) & _ca2) ^ _cx2; \
FbDoLeftMaskByteRRop(dst,lb,l,((src) & _ca1) ^ _cx1,__xor); \
}
#define FbDoRightMaskByteMergeRop(dst, src, rb, r) { \
FbBits __xor = ((src) & _ca2) ^ _cx2; \
FbDoRightMaskByteRRop(dst,rb,r,((src) & _ca1) ^ _cx1,__xor); \
}
#define FbDoRRop(dst, and, xor) (((dst) & (and)) ^ (xor))
#define FbDoMaskRRop(dst, and, xor, mask) \
(((dst) & ((and) | ~(mask))) ^ (xor & mask))
/*
* Take a single bit (0 or 1) and generate a full mask
*/
#define fbFillFromBit(b,t) (~((t) ((b) & 1)-1))
#define fbXorT(rop,fg,pm,t) ((((fg) & fbFillFromBit((rop) >> 1,t)) | \
(~(fg) & fbFillFromBit((rop) >> 3,t))) & (pm))
#define fbAndT(rop,fg,pm,t) ((((fg) & fbFillFromBit (rop ^ (rop>>1),t)) | \
(~(fg) & fbFillFromBit((rop>>2) ^ (rop>>3),t))) | \
~(pm))
#define fbXor(rop,fg,pm) fbXorT(rop,fg,pm,FbBits)
#define fbAnd(rop,fg,pm) fbAndT(rop,fg,pm,FbBits)
#define fbXorStip(rop,fg,pm) fbXorT(rop,fg,pm,FbStip)
#define fbAndStip(rop,fg,pm) fbAndT(rop,fg,pm,FbStip)
/*
* Stippling operations;
*/
extern _X_EXPORT const FbBits fbStipple16Bits[256]; /* half of table */
#define FbStipple16Bits(b) \
(fbStipple16Bits[(b)&0xff] | fbStipple16Bits[(b) >> 8] << FB_HALFUNIT)
extern _X_EXPORT const FbBits fbStipple8Bits[256];
extern _X_EXPORT const FbBits fbStipple4Bits[16];
extern _X_EXPORT const FbBits fbStipple2Bits[4];
extern _X_EXPORT const FbBits fbStipple1Bits[2];
extern _X_EXPORT const FbBits *const fbStippleTable[];
#define FbStippleRRop(dst, b, fa, fx, ba, bx) \
(FbDoRRop(dst, fa, fx) & b) | (FbDoRRop(dst, ba, bx) & ~b)
#define FbStippleRRopMask(dst, b, fa, fx, ba, bx, m) \
(FbDoMaskRRop(dst, fa, fx, m) & (b)) | (FbDoMaskRRop(dst, ba, bx, m) & ~(b))
#define FbDoLeftMaskByteStippleRRop(dst, b, fa, fx, ba, bx, lb, l) { \
FbBits __xor = ((fx) & (b)) | ((bx) & ~(b)); \
FbDoLeftMaskByteRRop(dst, lb, l, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
}
#define FbDoRightMaskByteStippleRRop(dst, b, fa, fx, ba, bx, rb, r) { \
FbBits __xor = ((fx) & (b)) | ((bx) & ~(b)); \
FbDoRightMaskByteRRop(dst, rb, r, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
}
#define FbOpaqueStipple(b, fg, bg) (((fg) & (b)) | ((bg) & ~(b)))
/*
* Compute rop for using tile code for 1-bit dest stipples; modifies
* existing rop to flip depending on pixel values
*/
#define FbStipple1RopPick(alu,b) (((alu) >> (2 - (((b) & 1) << 1))) & 3)
#define FbOpaqueStipple1Rop(alu,fg,bg) (FbStipple1RopPick(alu,fg) | \
(FbStipple1RopPick(alu,bg) << 2))
#define FbStipple1Rop(alu,fg) (FbStipple1RopPick(alu,fg) | 4)
#endif