+++ /dev/null
-/*
- * $TOG: cfb8line.c /main/33 1997/07/17 19:33:47 kaleb $
- *
-Copyright (c) 1990 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from the X Consortium.
- *
- * Author: Keith Packard, MIT X Consortium
- *
- * $XFree86: xc/programs/Xserver/cfb/cfb8line.c,v 3.2.2.3 1997/07/19 04:59:19 dawes Exp $
- * Jeff Anton'x fixes: cfb8line.c 97/02/07
- */
-
-#include "X.h"
-
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "regionstr.h"
-#include "scrnintstr.h"
-#include "mistruct.h"
-
-#include "cfb.h"
-#include "cfbmskbits.h"
-#include "cfbrrop.h"
-#include "miline.h"
-
-#ifdef PIXEL_ADDR
-
-#if defined(__GNUC__) && defined(mc68020)
-#define STUPID volatile
-#define REARRANGE
-#else
-#define STUPID
-#endif
-
-#ifdef __GNUC__
-/* lame compiler doesn't even look at 'register' attributes */
-#define I_H do{
-#define I_T }while(0);
-#define IMPORTANT_START I_H I_H I_H I_H I_H I_H I_H I_H I_H I_H
-#define IMPORTANT_END I_T I_T I_T I_T I_T I_T I_T I_T I_T I_T
-#else
-#define IMPORTANT_START
-#define IMPORTANT_END
-#endif
-
-#define isClipped(c,ul,lr) ((((c) - (ul)) | ((lr) - (c))) & ClipMask)
-
-#ifdef POLYSEGMENT
-
-# ifdef sun
-# define WIDTH_FAST 1152
-# endif
-
-# ifdef ultrix
-# define WIDTH_FAST 1024
-# endif
-
-# ifdef Mips
-# define WIDTH_FAST 4096
-# endif
-# ifdef WIDTH_FAST
-# if WIDTH_FAST == 1024
-# define FAST_MUL(y) ((y) << 10)
-# endif
-
-# if WIDTH_FAST == 1152
-# define FAST_MUL(y) (((y) << 10) + ((y) << 7))
-# endif
-
-# if WIDTH_FAST == 1280
-# define FAST_MUL(y) (((y) << 10) + ((y) << 8))
-# endif
-
-# if WIDTH_FAST == 2048
-# define FAST_MUL(y) ((y) << 11)
-# endif
-
-# if WIDTH_FAST == 4096
-# define FAST_MUL(y) ((y) << 12)
-# endif
-# endif
-
-# if defined(WIDTH_SHIFT)
-# ifdef FAST_MUL
-# define FUNC_NAME(e) RROP_NAME(RROP_NAME_CAT(e,Shift))
-# if RROP == GXcopy
-# define INCLUDE_OTHERS
-# define SERIOUS_UNROLLING
-# endif
-# define INCLUDE_DRAW
-# define NWIDTH(nwidth) WIDTH_FAST
-# define WIDTH_MUL(y,w) FAST_MUL(y)
-# endif
-# else
-# define FUNC_NAME(e) RROP_NAME(e)
-# define WIDTH_MUL(y,w) ((y) * (w))
-# define NWIDTH(nwidth) (nwidth)
-# define INCLUDE_DRAW
-# if !defined (FAST_MUL) && RROP == GXcopy
-# define INCLUDE_OTHERS
-# define SERIOUS_UNROLLING
-# endif
-# endif
-#else
-
-# define INCLUDE_DRAW
-# define WIDTH_MUL(y,w) ((y) * (w))
-# define NWIDTH(nwidth) nwidth
-# ifdef PREVIOUS
-# define FUNC_NAME(e) RROP_NAME(RROP_NAME_CAT(e,Previous))
-# else
-# define FUNC_NAME(e) RROP_NAME(e)
-# if RROP == GXcopy
-# define INCLUDE_OTHERS
-# ifdef PLENTIFUL_REGISTERS
-# define SAVE_X2Y2
-# endif
-# define ORIGIN
-# define SERIOUS_UNROLLING
-# else
-# define EITHER_MODE
-# endif
-# endif
-#endif
-
-#if PSZ == 24
-#define PXL2ADR(x) ((x)*3 >> 2)
-
-#if RROP == GXcopy
-#define body_rop \
- addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
- switch((unsigned long)addrb & 3){ \
- case 0: \
- *addrp = (*addrp & 0xFF000000)|(piQxelXor[0] & 0xFFFFFF); \
- break; \
- case 1: \
- *addrp = (*addrp & 0xFF)|(piQxelXor[2] & 0xFFFFFF00); \
- break; \
- case 3: \
- *addrp = (*addrp & 0xFFFFFF)|(piQxelXor[0] & 0xFF000000); \
- *(addrp+1)=(*(addrp+1) & 0xFFFF0000)|(piQxelXor[1] & 0xFFFF); \
- break; \
- case 2: \
- *addrp = (*addrp & 0xFFFF)|(piQxelXor[1] & 0xFFFF0000); \
- *(addrp+1)=(*(addrp+1) & 0xFFFFFF00)|(piQxelXor[2] & 0xFF); \
- break; \
- }
-#endif
-#if RROP == GXxor
-#define body_rop \
- addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
- switch((unsigned long)addrb & 3){ \
- case 0: \
- *addrp ^= piQxelXor[0] & 0xFFFFFF; \
- break; \
- case 1: \
- *addrp ^= piQxelXor[2] & 0xFFFFFF00; \
- break; \
- case 3: \
- *addrp ^= piQxelXor[0] & 0xFF000000; \
- *(addrp+1) ^= piQxelXor[1] & 0xFFFF; \
- break; \
- case 2: \
- *addrp ^= piQxelXor[1] & 0xFFFF0000; \
- *(addrp+1) ^= piQxelXor[2] & 0xFF; \
- break; \
- }
-#endif
-#if RROP == GXand
-#define body_rop \
- addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
- switch((unsigned long)addrb & 3){ \
- case 0: \
- *addrp &= piQxelAnd[0] | 0xFF000000; \
- break; \
- case 1: \
- *addrp &= piQxelAnd[2] | 0xFF; \
- break; \
- case 3: \
- *addrp &= 0xFFFFFF | piQxelAnd[0]; \
- *(addrp+1) &= 0xFFFF0000 | piQxelAnd[1]; \
- break; \
- case 2: \
- *addrp &= 0xFFFF | piQxelAnd[1]; \
- *(addrp+1) &= 0xFFFFFF00 | piQxelAnd[2]; \
- break; \
- }
-#endif
-#if RROP == GXor
-#define body_rop \
- addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
- switch((unsigned long)addrb & 3){ \
- case 0: \
- *addrp |= piQxelOr[0] & 0xFFFFFF; \
- break; \
- case 1: \
- *addrp |= piQxelOr[2] & 0xFFFFFF00; \
- break; \
- case 3: \
- *addrp |= piQxelOr[0] & 0xFF000000; \
- *(addrp+1) |= piQxelOr[1] & 0xFFFF; \
- break; \
- case 2: \
- *addrp |= piQxelOr[1] & 0xFFFF0000; \
- *(addrp+1) |= piQxelOr[2] & 0xFF; \
- break; \
- }
-#endif
-#if RROP == GXset
-#define body_rop \
- addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
- switch((unsigned long)addrb & 3){ \
- case 0: \
- *addrp = (*addrp & (piQxelAnd[0]|0xFF000000)) \
- ^ (piQxelXor[0] & 0xFFFFFF); \
- break; \
- case 1: \
- *addrp = (*addrp & (piQxelAnd[2]|0xFF)) \
- ^ (piQxelXor[2] & 0xFFFFFF00); \
- break; \
- case 3: \
- *addrp = (*addrp & (piQxelAnd[0]|0xFFFFFF)) \
- ^ (piQxelXor[0] & 0xFF000000); \
- *(addrp+1) = (*(addrp+1) & (piQxelAnd[1]|0xFFFF0000)) \
- ^ (piQxelXor[1] & 0xFFFF); \
- break; \
- case 2: \
- *addrp = (*addrp & (piQxelAnd[1]|0xFFFF)) \
- ^ (piQxelXor[1] & 0xFFFF0000); \
- *(addrp+1) = (*(addrp+1) & (piQxelAnd[2]|0xFFFFFF00)) \
- ^ (piQxelXor[2] & 0xFF); \
- break; \
- }
-#endif
-#endif /* PSZ == 24 */
-
-#define BUGFIX_clip
-
-#ifdef INCLUDE_DRAW
-
-int
-#ifdef POLYSEGMENT
-FUNC_NAME(cfb8SegmentSS1Rect) (pDrawable, pGC, nseg, pSegInit)
- DrawablePtr pDrawable;
- GCPtr pGC;
- int nseg;
- xSegment *pSegInit;
-#else
-FUNC_NAME(cfb8LineSS1Rect) (pDrawable, pGC, mode, npt, pptInit, pptInitOrig,
- x1p,y1p,x2p,y2p)
- DrawablePtr pDrawable;
- GCPtr pGC;
- int mode; /* Origin or Previous */
- int npt; /* number of points */
- DDXPointPtr pptInit, pptInitOrig;
- int *x1p, *y1p, *x2p, *y2p;
-#endif /* POLYSEGEMENT */
-{
- register long e;
- register int y1_or_e1;
- register PixelType *addrp;
- register int stepmajor;
- register int stepminor;
-#ifndef REARRANGE
- register long e3;
-#endif
-#ifdef mc68000
- register short x1_or_len;
-#else
- register int x1_or_len;
-#endif
- RROP_DECLARE
-
-#ifdef SAVE_X2Y2
-# define c2 y2
-#else
- register int c2;
-#endif
-#ifndef ORIGIN
- register int _x1, _y1, _x2, _y2; /* only used for CoordModePrevious */
- int extents_x1, extents_y1, extents_x2, extents_y2;
-#endif /* !ORIGIN */
-#ifndef PREVIOUS
- register int upperleft, lowerright;
- CARD32 ClipMask = 0x80008000;
-#endif /* !PREVIOUS */
-#ifdef POLYSEGMENT
- register int capStyle;
-#endif /* POLYSEGMENT */
-#ifdef SAVE_X2Y2
- register int x2, y2;
-# define X1 x1_or_len
-# define Y1 y1_or_e1
-# define X2 x2
-# define Y2 y2
-#else
-# ifdef POLYSEGMENT
-# define X1 x1_or_len
-# define Y1 y1_or_e1
-# else
-# define X1 intToX(y1_or_e1)
-# define Y1 intToY(y1_or_e1)
-# endif /* POLYSEGMENT */
-# define X2 intToX(c2)
-# define Y2 intToY(c2)
-#endif /* SAVE_X2Y2 */
- PixelType *addr;
- int nwidth;
- cfbPrivGCPtr devPriv;
- BoxPtr extents;
- int *ppt;
-#if PSZ == 24
- int xBase; /* x of addr */
- int xOffset; /* x of addrp */
- int xOffset_t; /* x of t */
- PixelType *addrLineEnd;
- char *addrb;
- int stepmajor3, stepminor3, majordx, minordx;
-#endif
-#ifdef BUGFIX_clip
- int ex_x1, ex_y1, ex_x2, ex_y2;
-#endif
- int octant;
- unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
-
- devPriv = cfbGetGCPrivate(pGC);
- cfbGetPixelWidthAndPointer (pDrawable, nwidth, addr);
-#ifndef REARRANGE
- RROP_FETCH_GCPRIV(devPriv);
-#endif
- extents = &devPriv->pCompositeClip->extents;
-#ifndef PREVIOUS
- c2 = *((int *) &pDrawable->x);
- c2 -= (c2 & 0x8000) << 1;
- upperleft = *((int *) &extents->x1) - c2;
- lowerright = *((int *) &extents->x2) - c2 - 0x00010001;
-#endif /* !PREVIOUS */
-#ifdef BUGFIX_clip
- ex_x1 = extents->x1 - pDrawable->x;
- ex_y1 = extents->y1 - pDrawable->y;
- ex_x2 = extents->x2 - pDrawable->x;
- ex_y2 = extents->y2 - pDrawable->y;
-#endif
-#if PSZ == 24
- xBase = pDrawable->x;
- addr += WIDTH_MUL(pDrawable->y,nwidth);
-#else
- addr = addr + WIDTH_MUL(pDrawable->y,nwidth) + pDrawable->x;
-#endif
-#ifdef POLYSEGMENT
- capStyle = pGC->capStyle - CapNotLast;
- ppt = (int *) pSegInit;
- while (nseg--)
-#else /* POLYSEGMENT */
-#ifdef EITHER_MODE
- mode -= CoordModePrevious;
- if (!mode)
-#endif /* EITHER_MODE */
-#ifndef ORIGIN
- { /* CoordModePrevious */
- ppt = (int *)pptInit + 1;
- _x1 = *x1p;
- _y1 = *y1p;
- extents_x1 = extents->x1 - pDrawable->x;
- extents_x2 = extents->x2 - pDrawable->x;
- extents_y1 = extents->y1 - pDrawable->y;
- extents_y2 = extents->y2 - pDrawable->y;
- if (_x1 < extents_x1 || _x1 >= extents_x2 ||
- _y1 < extents_y1 || _y1 >= extents_y2)
- {
- c2 = *ppt++;
- intToCoord(c2, _x2, _y2);
- *x2p = _x1 + _x2;
- *y2p = _y1 + _y2;
- return 1;
- }
-#if PSZ == 24
- addrLineEnd = addr + WIDTH_MUL(_y1, nwidth);
- xOffset = xBase + _x1;
- addrb = (char *)addrLineEnd + xOffset * 3;
- addrp = (PixelType *)((unsigned long)addrb & ~0x03);
-#else
- addrp = addr + WIDTH_MUL(_y1, nwidth) + _x1;
-#endif
- _x2 = _x1;
- _y2 = _y1;
- }
-#endif /* !ORIGIN */
-#ifdef EITHER_MODE
- else
-#endif /* EITHER_MODE */
-#ifndef PREVIOUS
- {
- ppt = (int *) pptInit;
- c2 = *ppt++;
- if (isClipped (c2, upperleft, lowerright))
- {
- return 1;
- }
-#ifdef SAVE_X2Y2
- intToCoord(c2,x2,y2);
-#endif
-#if PSZ == 24
- addrLineEnd = addr + WIDTH_MUL(Y2, nwidth);
- xOffset = xBase + X2;
- addrb = (char *)addrLineEnd + xOffset * 3;
- addrp = (PixelType *)((unsigned long)addrb & ~0x03);
-#else
- addrp = addr + WIDTH_MUL(Y2, nwidth) + X2;
-#endif
- }
-#endif /* !PREVIOUS */
- while (--npt)
-#endif /* POLYSEGMENT */
- {
-#ifdef POLYSEGMENT
- y1_or_e1 = ppt[0];
- c2 = ppt[1];
- ppt += 2;
- if (isClipped(y1_or_e1,upperleft,lowerright)|isClipped(c2,upperleft,lowerright))
- break;
- intToCoord(y1_or_e1,x1_or_len,y1_or_e1);
- /* compute now to avoid needing x1, y1 later */
-#if PSZ == 24
- addrLineEnd = addr + WIDTH_MUL(y1_or_e1, nwidth);
- xOffset = xBase + x1_or_len;
- addrb = (char *)addrLineEnd + xOffset * 3;
- addrp = (PixelType *)((unsigned long)addrb & ~0x03);
-#else
- addrp = addr + WIDTH_MUL(y1_or_e1, nwidth) + x1_or_len;
-#endif
-#else /* !POLYSEGMENT */
-#ifdef EITHER_MODE
- if (!mode)
-#endif /* EITHER_MODE */
-#ifndef ORIGIN
- {
- /* CoordModePrevious */
- _x1 = _x2;
- _y1 = _y2;
- c2 = *ppt++;
- intToCoord(c2, _x2, _y2);
- _x2 = _x1 + _x2;
- _y2 = _y1 + _y2;
-
-#ifdef BUGFIX_clip
- if (_x2 < ex_x1 || _x2 >= ex_x2 ||
- _y2 < ex_y1 || _y2 >= ex_y2)
-#else
- if (_x2 < extents_x1 || _x2 >= extents_x2 ||
- _y2 < extents_y1 || _y2 >= extents_y2)
-#endif
- {
- break;
- }
- CalcLineDeltas(_x1, _y1, _x2, _y2, x1_or_len, y1_or_e1,
- stepmajor, stepminor, 1, NWIDTH(nwidth), octant);
- }
-#endif /* !ORIGIN */
-#ifdef EITHER_MODE
- else
-#endif /* EITHER_MODE */
-#ifndef PREVIOUS
- {
-#ifndef SAVE_X2Y2
- y1_or_e1 = c2;
-#else
- y1_or_e1 = y2;
- x1_or_len = x2;
-#endif /* SAVE_X2Y2 */
- c2 = *ppt++;
-
- if (isClipped (c2, upperleft, lowerright))
- break;
-#ifdef SAVE_X2Y2
- intToCoord(c2,x2,y2);
-#endif
- CalcLineDeltas(X1, Y1, X2, Y2, x1_or_len, y1_or_e1,
- stepmajor, stepminor, 1, NWIDTH(nwidth), octant);
- }
-#endif /* !PREVIOUS */
-#endif /* POLYSEGMENT */
-
-#ifdef POLYSEGMENT
- CalcLineDeltas(X1, Y1, X2, Y2, x1_or_len, y1_or_e1,
- stepmajor, stepminor, 1, NWIDTH(nwidth), octant);
- /*
- * although the horizontal code works for polyline, it
- * slows down 10 pixel lines by 15%. Thus, this
- * code is optimized for horizontal segments and
- * random orientation lines, which seems like a reasonable
- * assumption
- */
- if (y1_or_e1 != 0)
- {
-#endif /* POLYSEGMENT */
- if (x1_or_len < y1_or_e1)
- {
-#ifdef REARRANGE
- register int e3;
-#endif
-
- e3 = x1_or_len;
- x1_or_len = y1_or_e1;
- y1_or_e1 = e3;
-
- e3 = stepminor;
- stepminor = stepmajor;
- stepmajor = e3;
- SetYMajorOctant(octant);
- }
-
- e = -x1_or_len;
-#ifdef POLYSEGMENT
- if (!capStyle)
- x1_or_len--;
-#endif
-
- {
-#ifdef REARRANGE
- register int e3;
- RROP_DECLARE
- RROP_FETCH_GCPRIV(devPriv);
-#endif
-
- y1_or_e1 = y1_or_e1 << 1;
- e3 = e << 1;
-
- FIXUP_ERROR(e, octant, bias);
-
-#if PSZ == 24
- if (stepmajor == 1 || stepmajor == -1){
- stepmajor3 = stepmajor * 3;
- stepminor3 = stepminor * sizeof (long);
- majordx = stepmajor; minordx = 0;
- } else {
- stepmajor3 = stepmajor * sizeof (long);
- stepminor3 = stepminor * 3;
- majordx = 0; minordx = stepminor;
- }
-#endif
-
-#if PSZ == 24
-#define body {\
- body_rop \
- addrb += stepmajor3; \
- xOffset += majordx; \
- e += y1_or_e1; \
- if (e >= 0){ \
- addrb += stepminor3; \
- xOffset += minordx; \
- e += e3; \
- } \
- }
-#else /* PSZ == 24 */
-
-#define body {\
- RROP_SOLID(addrp); \
- addrp += stepmajor; \
- e += y1_or_e1; \
- if (e >= 0) \
- { \
- addrp += stepminor; \
- e += e3; \
- } \
- }
-#endif /* PSZ == 24 */
-
-#ifdef LARGE_INSTRUCTION_CACHE
-
-# ifdef SERIOUS_UNROLLING
-# define UNROLL 16
-# else
-# define UNROLL 4
-# endif
-#define CASE(n) case -n: body
-
- while ((x1_or_len -= UNROLL) >= 0)
- {
- body body body body
-# if UNROLL >= 8
- body body body body
-# endif
-# if UNROLL >= 12
- body body body body
-# endif
-# if UNROLL >= 16
- body body body body
-# endif
- }
- switch (x1_or_len)
- {
- CASE(1) CASE(2) CASE(3)
-# if UNROLL >= 8
- CASE(4) CASE(5) CASE(6) CASE(7)
-# endif
-# if UNROLL >= 12
- CASE(8) CASE(9) CASE(10) CASE(11)
-# endif
-# if UNROLL >= 16
- CASE(12) CASE(13) CASE(14) CASE(15)
-# endif
- }
-#else /* !LARGE_INSTRUCTION_CACHE */
-
- IMPORTANT_START
- IMPORTANT_START
-
- if (x1_or_len & 1)
- body
- x1_or_len >>= 1;
- while (x1_or_len--) {
- body body
- }
-
- IMPORTANT_END
- IMPORTANT_END
-#endif /* LARGE_INSTRUCTION_CACHE */
-
-#ifdef POLYSEGMENT
-#if PSZ == 24
- body_rop
-#else
- RROP_SOLID(addrp);
-#endif
-#endif
-#if PSZ == 24
- addrp = (PixelType *)((unsigned long)addrb & ~0x03);
-#endif
- }
-#undef body
-#ifdef POLYSEGMENT
- }
- else
- {
-# ifdef REARRANGE
- register int e3;
- RROP_DECLARE
- RROP_FETCH_GCPRIV(devPriv);
-# endif /* REARRANGE */
- if (stepmajor < 0)
- {
-#if PSZ == 24
- xOffset -= x1_or_len;
- addrp = addrLineEnd + PXL2ADR(xOffset);
-#else
- addrp -= x1_or_len;
-#endif
- if (capStyle)
- x1_or_len++;
- else
-#if PSZ == 24
- xOffset++;
- addrp = addrLineEnd + PXL2ADR(xOffset);
-#else
- addrp++;
-#endif
- }
- else
- {
-#if PSZ == 24
- addrp = addrLineEnd + PXL2ADR(xOffset);
-#endif
- if (capStyle)
- x1_or_len++;
- }
-# if PSZ == 24
- y1_or_e1 = xOffset & 3;
-# else
- /* Round addrp down to the next PixelGroup boundary, and
- * set y1_or_e1 to the excess (in pixels)
- * (assumes PGSZB is a power of 2). */
- y1_or_e1 = (((unsigned long) addrp) & (PGSZB - 1)) / (PSZ / 8);
- addrp -= y1_or_e1;
-# endif /* PSZ == 24 */
-#if PSZ == 24
- {
-#if RROP == GXcopy
- register int nlmiddle;
- int leftIndex = xOffset & 3;
- int rightIndex = (xOffset + x1_or_len) & 3;
-#else
- register int pidx;
-#endif
-
-#if RROP == GXcopy
- nlmiddle = x1_or_len;
- if(leftIndex){
- nlmiddle -= (4 - leftIndex);
- }
- if(rightIndex){
- nlmiddle -= rightIndex;
- }
-
- nlmiddle >>= 2;
- switch(leftIndex+x1_or_len){
- case 4:
- switch(leftIndex){
- case 0:
- *addrp++ = piQxelXor[0];
- *addrp++ = piQxelXor[1];
- *addrp = piQxelXor[2];
- break;
- case 1:
- *addrp++ = ((*addrp) & 0xFFFFFF) | (piQxelXor[0] & 0xFF000000);
- *addrp++ = piQxelXor[1];
- *addrp = piQxelXor[2];
- break;
- case 2:
- *addrp++ =((*addrp) & 0xFFFF) | (piQxelXor[1] & 0xFFFF0000);
- *addrp = piQxelXor[2];
- break;
- case 3:
- *addrp =((*addrp) & 0xFF) | (piQxelXor[2] & 0xFFFFFF00);
- break;
- }
- break;
- case 3:
- switch(leftIndex){
- case 0:
- *addrp++ = piQxelXor[0];
- *addrp++ = piQxelXor[1];
- *addrp = ((*addrp) & 0xFFFFFF00) | (piQxelXor[2] & 0xFF);
- break;
- case 1:
- *addrp++ = ((*addrp) & 0xFFFFFF) | (piQxelXor[0] & 0xFF000000);
- *addrp++ = piQxelXor[1];
- *addrp = ((*addrp) & 0xFFFFFF00) | (piQxelXor[2] & 0xFF);
- break;
- case 2:
- *addrp++ =((*addrp) & 0xFFFF) | (piQxelXor[1] & 0xFFFF0000);
- *addrp = ((*addrp) & 0xFFFFFF00) | (piQxelXor[2] & 0xFF);
- break;
- }
- break;
- case 2:
- switch(leftIndex){
-/*
- case 2:
- *addrp++ = ((*addrp) & 0xFFFF) | (piQxelXor[1] & 0xFFFF0000);
- *addrp = ((*addrp) & 0xFFFFFF00) | (piQxelXor[2] & 0xFF);
- break;
-*/
- case 1:
- *addrp++ = ((*addrp) & 0xFFFFFF) | (piQxelXor[0] & 0xFF000000);
- *addrp = ((*addrp) & 0xFFFF0000) | (piQxelXor[1] & 0xFFFF);
- break;
- case 0:
- *addrp++ = piQxelXor[0];
- *addrp = ((*addrp) & 0xFFFF0000) | (piQxelXor[1] & 0xFFFF);
- break;
- }
- break;
- case 1: /*only if leftIndex = 0 and w = 1*/
- if(x1_or_len){
- *addrp = ((*addrp) & 0xFF000000) | (piQxelXor[0] & 0xFFFFFF);
- }
-/*
- else{
- *addrp++ = ((*addrp) & 0xFFFFFF) | (piQxelXor[0] & 0xFF000000);
- *addrp = ((*addrp) & 0xFFFF0000) | (piQxelXor[1] & 0xFFFF);
- }
-*/
- break;
- case 0: /*never*/
- break;
- default:
- {
-/*
- maskbits(y1_or_e1, x1_or_len, e, e3, x1_or_len)
-*/
- switch(leftIndex){
- case 0:
- break;
- case 1:
- *addrp++ = ((*addrp) & 0xFFFFFF) | (piQxelXor[0] & 0xFF000000);
- *addrp++ = piQxelXor[1];
- *addrp++ = piQxelXor[2];
- break;
- case 2:
- *addrp++ = ((*addrp) & 0xFFFF) | (piQxelXor[1] & 0xFFFF0000);
- *addrp++ = piQxelXor[2];
- break;
- case 3:
- *addrp++ = ((*addrp) & 0xFF) | (piQxelXor[2] & 0xFFFFFF00);
- break;
- }
- while(nlmiddle--){
- *addrp++ = piQxelXor[0];
- *addrp++ = piQxelXor[1];
- *addrp++ = piQxelXor[2];
- }
- switch(rightIndex++){
- case 0:
- break;
- case 1:
- *addrp = ((*addrp) & 0xFF000000) | (piQxelXor[0] & 0xFFFFFF);
- break;
- case 2:
- *addrp++ = piQxelXor[0];
- *addrp = ((*addrp) & 0xFFFF0000) | (piQxelXor[1] & 0xFFFF);
- break;
- case 3:
- *addrp++ = piQxelXor[0];
- *addrp++ = piQxelXor[1];
- *addrp = ((*addrp) & 0xFFFFFF00) | (piQxelXor[2] & 0xFF);
- break;
- }
-/*
- if (e3){
- e3 &= 0xFFFFFF;
- switch(rightIndex&3){
- case 0:
- *addrp = ((*addrp) & (0xFF000000 | ~e3))
- | (piQxelXor[0] & 0xFFFFFF & e3);
- break;
- case 1:
- *addrp++ = ((*addrp) & (0xFFFFFF | ~(e3<<24)))
- | (piQxelXor[0] & 0xFF000000 & (e3<<24));
- *addrp = ((*addrp) & (0xFFFF0000|~(e3 >> 8)))
- | (piQxelXor[1] & 0xFFFF & (e3 >> 8));
- break;
- case 2:
- *addrp++ = ((*addrp) & (0xFFFF|~(e3 << 16)))
- | (piQxelXor[1] & 0xFFFF0000 & (e3 << 16));
- *addrp = ((*addrp) & (0xFFFFFF00|~(e3>>16)))
- | (piQxelXor[2] & 0xFF & (e3 >> 16));
- break;
- case 3:
- *addrp++ = ((*addrp) & (0xFF|~(e3<<8)))
- | (piQxelXor[2] & 0xFFFFFF00 & (e3<<8));
- break;
- }
- }
-*/
- }
- }
-#else /* GXcopy */
- addrp = (PixelType *)((char *)addrLineEnd + ((xOffset * 3) & ~0x03));
- if (x1_or_len <= 1){
- if (x1_or_len)
- RROP_SOLID24(addrp, xOffset);
- } else {
- maskbits(xOffset, x1_or_len, e, e3, x1_or_len);
- pidx = xOffset & 3;
- if (e){
- RROP_SOLID_MASK(addrp, e, pidx-1);
- addrp++;
- if (pidx == 3)
- pidx = 0;
- }
- while (--x1_or_len >= 0){
- RROP_SOLID(addrp, pidx);
- addrp++;
- if (++pidx == 3)
- pidx = 0;
- }
- if (e3)
- RROP_SOLID_MASK(addrp, e3, pidx);
- }
-#endif /* GXcopy */
- }
-#else /* PSZ == 24 */
- if (y1_or_e1 + x1_or_len <= PPW)
- {
- if (x1_or_len)
- {
- maskpartialbits(y1_or_e1, x1_or_len, e)
- RROP_SOLID_MASK((unsigned long *) addrp, e);
- }
- }
- else
- {
- maskbits(y1_or_e1, x1_or_len, e, e3, x1_or_len)
- if (e)
- {
- RROP_SOLID_MASK((unsigned long *) addrp, e);
- addrp += PPW;
- }
-#if 0
- RROP_SPAN_lu(addrp, x1_or_len)
-#else
- RROP_SPAN(addrp, x1_or_len)
-#endif
- if (e3)
-#if 0
- RROP_SOLID_MASK_lu((unsigned long *) addrp, e3);
-#else
- RROP_SOLID_MASK((unsigned long *) addrp, e3);
-#endif
- }
-#endif /* PSZ == 24 */
- }
-#endif /* POLYSEGMENT */
- }
-#ifdef POLYSEGMENT
- if (nseg >= 0)
- return (xSegment *) ppt - pSegInit;
-#else
- if (npt)
- {
-#ifdef EITHER_MODE
- if (!mode)
-#endif /* EITHER_MODE */
-#ifndef ORIGIN
- {
- *x1p = _x1;
- *y1p = _y1;
- *x2p = _x2;
- *y2p = _y2;
- }
-#endif /* !ORIGIN */
- return ((DDXPointPtr) ppt - pptInit) - 1;
- }
-#endif /* POLYSEGMENT */
-
-#ifndef POLYSEGMENT
-# ifndef ORIGIN
-# define C2 c2
-# else
-# define C2 ppt[-1]
-# endif
-#ifdef EITHER_MODE
- if (pGC->capStyle != CapNotLast &&
- ((mode ? (C2 != *((int *) pptInitOrig))
- : ((_x2 != pptInitOrig->x) ||
- (_y2 != pptInitOrig->y)))
- || (ppt == ((int *)pptInitOrig) + 2)))
-#endif /* EITHER_MODE */
-#ifdef PREVIOUS
- if (pGC->capStyle != CapNotLast &&
- ((_x2 != pptInitOrig->x) ||
- (_y2 != pptInitOrig->y) ||
- (ppt == ((int *)pptInitOrig) + 2)))
-#endif /* PREVIOUS */
-#ifdef ORIGIN
- if (pGC->capStyle != CapNotLast &&
- ((C2 != *((int *) pptInitOrig)) ||
- (ppt == ((int *)pptInitOrig) + 2)))
-#endif /* !PREVIOUS */
- {
-# ifdef REARRANGE
- RROP_DECLARE
-
- RROP_FETCH_GCPRIV(devPriv);
-# endif
-#if PSZ == 24
-#if RROP == GXcopy
- switch(xOffset & 3){
- case 0:
- *addrp = ((*addrp)&0xFF000000)|(piQxelXor[0] & 0xFFFFFF);
- break;
- case 3:
- *addrp = ((*addrp)&0xFF)|(piQxelXor[2] & 0xFFFFFF00);
- break;
- case 1:
- *addrp = ((*addrp)&0xFFFFFF)|(piQxelXor[0] & 0xFF000000);
- *(addrp+1) = ((*(addrp+1))&0xFFFF0000)|(piQxelXor[1] & 0xFFFF);
- break;
- case 2:
- *addrp = ((*addrp)&0xFFFF)|(piQxelXor[1] & 0xFFFF0000);
- *(addrp+1) = ((*(addrp+1))&0xFFFFFF00)|(piQxelXor[2] & 0xFF);
- break;
- }
-#endif
-#if RROP == GXxor
- switch(xOffset & 3){
- case 0:
- *addrp ^= (piQxelXor[0] & 0xFFFFFF);
- break;
- case 3:
- *addrp ^= (piQxelXor[2] & 0xFFFFFF00);
- break;
- case 1:
- *addrp ^= (piQxelXor[0] & 0xFF000000);
- *(addrp+1) ^= (piQxelXor[1] & 0xFFFF);
- break;
- case 2:
- *addrp ^= (piQxelXor[1] & 0xFFFF0000);
- *(addrp+1) ^= (piQxelXor[2] & 0xFF);
- break;
- }
-#endif
-#if RROP == GXand
- switch(xOffset & 3){
- case 0:
- *addrp &= (piQxelAnd[0] | 0xFF000000);
- break;
- case 3:
- *addrp &= (piQxelAnd[2] | 0xFF);
- break;
- case 1:
- *addrp &= (0xFFFFFF|piQxelAnd[0]);
- *(addrp+1) &= (0xFFFF0000|piQxelAnd[1]);
- break;
- case 2:
- *addrp &= (0xFFFF|piQxelAnd[1]);
- *(addrp+1) &= (0xFFFFFF00|piQxelAnd[2]);
- break;
- }
-#endif
-#if RROP == GXor
- switch(xOffset & 3){
- case 0:
- *addrp |= (piQxelOr[0] & 0xFFFFFF);
- break;
- case 3:
- *addrp |= (piQxelOr[2] & 0xFFFFFF00);
- break;
- case 1:
- *addrp |= (piQxelOr[0] & 0xFF000000);
- *(addrp+1) |= (piQxelOr[1] & 0xFFFF);
- break;
- case 2:
- *addrp |= (piQxelOr[1] & 0xFFFF0000);
- *(addrp+1) |= (piQxelOr[2] & 0xFF);
- break;
- }
-#endif
-#if RROP == GXset
- switch(xOffset & 3){
- case 0:
- *addrp = (((*addrp)&(piQxelAnd[0] |0xFF000000))^(piQxelXor[0] & 0xFFFFFF));
- break;
- case 3:
- *addrp = (((*addrp)&(piQxelAnd[2]|0xFF))^(piQxelXor[2] & 0xFFFFFF00));
- break;
- case 1:
- *addrp = (((*addrp)&(piQxelAnd[0]|0xFFFFFF))^(piQxelXor[0] & 0xFF000000));
- *(addrp+1) = (((*(addrp+1))&(piQxelAnd[1]|0xFFFF0000))^(piQxelXor[1] & 0xFFFF));
- break;
- case 2:
- *addrp = (((*addrp)&(piQxelAnd[1]|0xFFFF))^(piQxelXor[1] & 0xFFFF0000));
- *(addrp+1) = (((*(addrp+1))&(piQxelAnd[2]|0xFFFFFF00))^(piQxelXor[2] & 0xFF));
- break;
- }
-#endif
-#else
- RROP_SOLID (addrp);
-# endif
- }
-#endif /* !POLYSEGMENT */
- return -1;
-}
-
-#endif /* INCLUDE_DRAW */
-
-
-#ifdef INCLUDE_OTHERS
-
-#ifdef POLYSEGMENT
-
-void
-cfb8SegmentSS1Rect (pDrawable, pGC, nseg, pSegInit)
- DrawablePtr pDrawable;
- GCPtr pGC;
- int nseg;
- xSegment *pSegInit;
-{
- int (*func)();
- void (*clip)();
- int drawn;
- cfbPrivGCPtr devPriv;
-
- devPriv = cfbGetGCPrivate(pGC);
-#ifdef NO_ONE_RECT
- if (REGION_NUM_RECTS(devPriv->pCompositeClip) != 1)
- {
- cfbSegmentSS(pDrawable, pGC, nseg, pSegInit);
- return;
- }
-#endif
- switch (devPriv->rop)
- {
- case GXcopy:
- func = cfb8SegmentSS1RectCopy;
- clip = cfb8ClippedLineCopy;
-#ifdef FAST_MUL
- if (cfbGetPixelWidth (pDrawable) == WIDTH_FAST)
- func = cfb8SegmentSS1RectShiftCopy;
-#endif
- break;
- case GXxor:
- func = cfb8SegmentSS1RectXor;
- clip = cfb8ClippedLineXor;
- break;
- default:
- func = cfb8SegmentSS1RectGeneral;
- clip = cfb8ClippedLineGeneral;
- break;
- }
- while (nseg)
- {
- drawn = (*func) (pDrawable, pGC, nseg, pSegInit);
- if (drawn == -1)
- break;
- (*clip) (pDrawable, pGC,
- pSegInit[drawn-1].x1, pSegInit[drawn-1].y1,
- pSegInit[drawn-1].x2, pSegInit[drawn-1].y2,
- &devPriv->pCompositeClip->extents,
- pGC->capStyle == CapNotLast);
- pSegInit += drawn;
- nseg -= drawn;
- }
-}
-
-#else /* POLYSEGMENT */
-
-void
-cfb8LineSS1Rect (pDrawable, pGC, mode, npt, pptInit)
- DrawablePtr pDrawable;
- GCPtr pGC;
- int mode;
- int npt;
- DDXPointPtr pptInit;
-{
- int (*func)();
- void (*clip)();
- int drawn;
- cfbPrivGCPtr devPriv;
- int x1, y1, x2, y2;
- DDXPointPtr pptInitOrig = pptInit;
-
- devPriv = cfbGetGCPrivate(pGC);
-#ifdef NO_ONE_RECT
- if (REGION_NUM_RECTS(devPriv->pCompositeClip) != 1)
- {
- cfbLineSS(pDrawable, pGC, mode, npt, pptInit);
- return;
- }
-#endif
- switch (devPriv->rop)
- {
- case GXcopy:
- func = cfb8LineSS1RectCopy;
- clip = cfb8ClippedLineCopy;
- if (mode == CoordModePrevious)
- func = cfb8LineSS1RectPreviousCopy;
- break;
- case GXxor:
- func = cfb8LineSS1RectXor;
- clip = cfb8ClippedLineXor;
- break;
- default:
- func = cfb8LineSS1RectGeneral;
- clip = cfb8ClippedLineGeneral;
- break;
- }
- if (mode == CoordModePrevious)
- {
- x1 = pptInit->x;
- y1 = pptInit->y;
- while (npt > 1)
- {
- drawn = (*func) (pDrawable, pGC, mode, npt, pptInit, pptInitOrig,
- &x1, &y1, &x2, &y2);
- if (drawn == -1)
- break;
- (*clip) (pDrawable, pGC, x1, y1, x2, y2,
- &devPriv->pCompositeClip->extents,
- drawn != npt - 1 || pGC->capStyle == CapNotLast);
- pptInit += drawn;
- npt -= drawn;
- x1 = x2;
- y1 = y2;
- }
- }
- else
- {
- while (npt > 1)
- {
- drawn = (*func) (pDrawable, pGC, mode, npt, pptInit, pptInitOrig,
- &x1, &y1, &x2, &y2);
- if (drawn == -1)
- break;
- (*clip) (pDrawable, pGC,
- pptInit[drawn-1].x, pptInit[drawn-1].y,
- pptInit[drawn].x, pptInit[drawn].y,
- &devPriv->pCompositeClip->extents,
- drawn != npt - 1 || pGC->capStyle == CapNotLast);
- pptInit += drawn;
- npt -= drawn;
- }
- }
-}
-
-#endif /* else POLYSEGMENT */
-#endif /* INCLUDE_OTHERS */
-
-#if !defined(POLYSEGMENT) && !defined (PREVIOUS)
-
-void
-RROP_NAME (cfb8ClippedLine) (pDrawable, pGC, x1, y1, x2, y2, boxp, shorten)
- DrawablePtr pDrawable;
- GCPtr pGC;
- int x1, y1, x2, y2;
- BoxPtr boxp;
- Bool shorten;
-{
- int oc1, oc2;
- int e, e1, e3, len;
- int adx, ady;
-
- PixelType *addr;
- int nwidth;
- int stepx, stepy;
- int xorg, yorg;
- int new_x1, new_y1, new_x2, new_y2;
- Bool pt1_clipped, pt2_clipped;
- int changex, changey, result;
-#if PSZ == 24
- int xOffset;
- PixelType *addrLineEnd;
- char *addrb;
- int stepx3, stepy3;
-#endif
- int octant;
- unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
-
- cfbGetPixelWidthAndPointer(pDrawable, nwidth, addr);
-
- xorg = pDrawable->x;
- yorg = pDrawable->y;
- x1 += xorg;
- y1 += yorg;
- x2 += xorg;
- y2 += yorg;
- oc1 = 0;
- oc2 = 0;
- OUTCODES (oc1, x1, y1, boxp);
- OUTCODES (oc2, x2, y2, boxp);
-
- if (oc1 & oc2)
- return;
-
- CalcLineDeltas(x1, y1, x2, y2, adx, ady, stepx, stepy, 1, nwidth, octant);
-
- if (adx <= ady)
- {
- int t;
-
- t = adx;
- adx = ady;
- ady = t;
-
- t = stepx;
- stepx = stepy;
- stepy = t;
-
- SetYMajorOctant(octant);
- }
- e = - adx;
- e1 = ady << 1;
- e3 = - (adx << 1);
-
- FIXUP_ERROR(e, octant, bias);
-
- new_x1 = x1;
- new_y1 = y1;
- new_x2 = x2;
- new_y2 = y2;
- pt1_clipped = 0;
- pt2_clipped = 0;
-
- if (IsXMajorOctant(octant))
- {
- result = miZeroClipLine(boxp->x1, boxp->y1, boxp->x2 - 1, boxp->y2 - 1,
- &new_x1, &new_y1, &new_x2, &new_y2,
- adx, ady,
- &pt1_clipped, &pt2_clipped,
- octant, bias, oc1, oc2);
- if (result == -1)
- return;
-
- len = abs(new_x2 - new_x1) - 1; /* this routine needs the "-1" */
-
- /* if we've clipped the endpoint, always draw the full length
- * of the segment, because then the capstyle doesn't matter
- * if x2,y2 isn't clipped, use the capstyle
- * (shorten == TRUE <--> CapNotLast)
- */
- if (pt2_clipped || !shorten)
- len++;
-
- if (pt1_clipped)
- {
- /* must calculate new error terms */
- changex = abs(new_x1 - x1);
- changey = abs(new_y1 - y1);
- e = e + changey * e3 + changex * e1;
- }
- }
- else /* Y_AXIS */
- {
- result = miZeroClipLine(boxp->x1, boxp->y1, boxp->x2 - 1, boxp->y2 - 1,
- &new_x1, &new_y1, &new_x2, &new_y2,
- ady, adx,
- &pt1_clipped, &pt2_clipped,
- octant, bias, oc1, oc2);
- if (result == -1)
- return;
-
- len = abs(new_y2 - new_y1) - 1; /* this routine needs the "-1" */
-
- /* if we've clipped the endpoint, always draw the full length
- * of the segment, because then the capstyle doesn't matter
- * if x2,y2 isn't clipped, use the capstyle
- * (shorten == TRUE <--> CapNotLast)
- */
- if (pt2_clipped || !shorten)
- len++;
-
- if (pt1_clipped)
- {
- /* must calculate new error terms */
- changex = abs(new_x1 - x1);
- changey = abs(new_y1 - y1);
- e = e + changex * e3 + changey * e1;
- }
- }
- x1 = new_x1;
- y1 = new_y1;
- {
- register PixelType *addrp;
- RROP_DECLARE
-
- RROP_FETCH_GC(pGC);
-
-#if PSZ == 24
- xOffset = x1;
- addrLineEnd = addr + (y1 * nwidth);
- addrb = (char *)addrLineEnd + x1 * 3;
- if (stepx == 1 || stepx == -1){
- stepx3 = stepx * 3;
- stepy3 = stepy * sizeof (long);
- } else {
- stepx3 = stepx * sizeof (long);
- stepy3 = stepy * 3;
- }
-#else
- addrp = addr + (y1 * nwidth) + x1;
-#endif
-
-#ifndef REARRANGE
- if (!ady)
- {
-#if PSZ == 24
-#define body {\
- body_rop \
- addrb += stepx3; \
- }
-#else
-#define body { RROP_SOLID(addrp); addrp += stepx; }
-#endif
- while (len >= PGSZB)
- {
- body body body body
-#if PGSZ == 64
- body body body body
-#endif
- len -= PGSZB;
- }
- switch (len)
- {
-#if PGSZ == 64
- case 7: body case 6: body case 5: body case 4: body
-#endif
- case 3: body case 2: body case 1: body
- }
-#undef body
- }
- else
-#endif /* !REARRANGE */
- {
-#if PSZ == 24
-#define body {\
- body_rop \
- addrb += stepx3; \
- e += e1; \
- if (e >= 0) \
- { \
- addrb += stepy3; \
- e += e3; \
- } \
- }
-#else
-#define body {\
- RROP_SOLID(addrp); \
- addrp += stepx; \
- e += e1; \
- if (e >= 0) \
- { \
- addrp += stepy; \
- e += e3; \
- } \
- }
-#endif
-
-#ifdef LARGE_INSTRUCTION_CACHE
- while ((len -= PGSZB) >= 0)
- {
- body body body body
-#if PGSZ == 64
- body body body body
-#endif
- }
- switch (len)
- {
- case -1: body case -2: body case -3: body
-#if PGSZ == 64
- case -4: body case -5: body case -6: body case -7: body
-#endif
- }
-#else /* !LARGE_INSTRUCTION_CACHE */
- IMPORTANT_START;
-
- while ((len -= 2) >= 0)
- {
- body body;
- }
- if (len & 1)
- body;
-
- IMPORTANT_END;
-#endif /* LARGE_INSTRUCTION_CACHE */
- }
-#if PSZ == 24
- body_rop
-#else
- RROP_SOLID(addrp);
-#endif
-#undef body
- }
-}
-
-#endif /* !POLYSEGMENT && !PREVIOUS */
-#endif /* PIXEL_ADDR */
projects / rdpsrv / blobdiff