X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=Xserver%2Fprograms%2FXserver%2Fmfb%2Fmfbzerarc.c;fp=Xserver%2Fprograms%2FXserver%2Fmfb%2Fmfbzerarc.c;h=0000000000000000000000000000000000000000;hb=ce66b81460e5353db09d45c02339d4583fbda255;hp=887e94bd1fb5eb49a8085ec86c964d8dead367d8;hpb=7772d71ffd742cfc9b7ff214659d16c5bb56a391;p=rdpsrv diff --git a/Xserver/programs/Xserver/mfb/mfbzerarc.c b/Xserver/programs/Xserver/mfb/mfbzerarc.c deleted file mode 100644 index 887e94b..0000000 --- a/Xserver/programs/Xserver/mfb/mfbzerarc.c +++ /dev/null @@ -1,255 +0,0 @@ -/************************************************************ - -Copyright (c) 1989 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. - -********************************************************/ - -/* $XConsortium: mfbzerarc.c /main/21 1995/12/06 16:55:48 dpw $ */ -/* $XFree86: xc/programs/Xserver/mfb/mfbzerarc.c,v 3.1 1996/01/05 13:19:46 dawes Exp $ */ - -/* Derived from: - * "Algorithm for drawing ellipses or hyperbolae with a digital plotter" - * by M. L. V. Pitteway - * The Computer Journal, November 1967, Volume 10, Number 3, pp. 282-289 - */ - -#include "X.h" -#include "Xprotostr.h" -#include "miscstruct.h" -#include "gcstruct.h" -#include "pixmapstr.h" -#include "scrnintstr.h" -#include "mfb.h" -#include "maskbits.h" -#include "mizerarc.h" -#include "mi.h" - -/* - * Note: LEFTMOST must be the bit leftmost in the actual screen - * representation. This depends also on the IMAGE_BYTE_ORDER. - * LONG2CHARS() takes care of the re-ordering as required. (DHD) - */ -#if (BITMAP_BIT_ORDER == MSBFirst) -#define LEFTMOST ((PixelType) LONG2CHARS(((unsigned long)1 << PLST))) -#else -#define LEFTMOST ((PixelType) LONG2CHARS(1)) -#endif - -#define PixelateWhite(addr,yoff,xoff) \ - *mfbScanlineOffset(addr, (yoff)+((xoff)>>PWSH)) |= \ - SCRRIGHT (LEFTMOST, ((xoff) & PIM)) -#define PixelateBlack(addr,yoff,xoff) \ - *mfbScanlineOffset(addr, (yoff)+((xoff)>>PWSH)) &= \ - ~(SCRRIGHT (LEFTMOST, ((xoff) & PIM))) - -#define Pixelate(base,yoff,xoff) \ -{ \ - paddr = mfbScanlineOffset(base, (yoff) + ((xoff)>>PWSH)); \ - pmask = SCRRIGHT(LEFTMOST, (xoff) & PIM); \ - *paddr = (*paddr & ~pmask) | (pixel & pmask); \ -} - -#define DoPix(bit,base,yoff,xoff) if (mask & bit) Pixelate(base,yoff,xoff); - -static void -mfbZeroArcSS(pDraw, pGC, arc) - DrawablePtr pDraw; - GCPtr pGC; - xArc *arc; -{ - miZeroArcRec info; - Bool do360; - register int x, y, a, b, d, mask; - register int k1, k3, dx, dy; - PixelType *addrl; - PixelType *yorgl, *yorgol; - PixelType pixel; - int nlwidth, yoffset, dyoffset; - PixelType pmask; - register PixelType *paddr; - - if (((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->rop == - RROP_BLACK) - pixel = 0; - else - pixel = ~0; - - mfbGetPixelWidthAndPointer(pDraw, nlwidth, addrl); - do360 = miZeroArcSetup(arc, &info, TRUE); - yorgl = addrl + ((info.yorg + pDraw->y) * nlwidth); - yorgol = addrl + ((info.yorgo + pDraw->y) * nlwidth); - info.xorg += pDraw->x; - info.xorgo += pDraw->x; - MIARCSETUP(); - yoffset = y ? nlwidth : 0; - dyoffset = 0; - mask = info.initialMask; - if (!(arc->width & 1)) - { - DoPix(2, yorgl, 0, info.xorgo); - DoPix(8, yorgol, 0, info.xorgo); - } - if (!info.end.x || !info.end.y) - { - mask = info.end.mask; - info.end = info.altend; - } - if (do360 && (arc->width == arc->height) && !(arc->width & 1)) - { - int xoffset = nlwidth; - PixelType *yorghl = mfbScanlineDeltaNoBankSwitch(yorgl, info.h, nlwidth); - int xorghp = info.xorg + info.h; - int xorghn = info.xorg - info.h; - - if (pixel) - { - while (1) - { - PixelateWhite(yorgl, yoffset, info.xorg + x); - PixelateWhite(yorgl, yoffset, info.xorg - x); - PixelateWhite(yorgol, -yoffset, info.xorg - x); - PixelateWhite(yorgol, -yoffset, info.xorg + x); - if (a < 0) - break; - PixelateWhite(yorghl, -xoffset, xorghp - y); - PixelateWhite(yorghl, -xoffset, xorghn + y); - PixelateWhite(yorghl, xoffset, xorghn + y); - PixelateWhite(yorghl, xoffset, xorghp - y); - xoffset += nlwidth; - MIARCCIRCLESTEP(yoffset += nlwidth;); - } - } - else - { - while (1) - { - PixelateBlack(yorgl, yoffset, info.xorg + x); - PixelateBlack(yorgl, yoffset, info.xorg - x); - PixelateBlack(yorgol, -yoffset, info.xorg - x); - PixelateBlack(yorgol, -yoffset, info.xorg + x); - if (a < 0) - break; - PixelateBlack(yorghl, -xoffset, xorghp - y); - PixelateBlack(yorghl, -xoffset, xorghn + y); - PixelateBlack(yorghl, xoffset, xorghn + y); - PixelateBlack(yorghl, xoffset, xorghp - y); - xoffset += nlwidth; - MIARCCIRCLESTEP(yoffset += nlwidth;); - } - } - x = info.w; - yoffset = info.h * nlwidth; - } - else if (do360) - { - while (y < info.h || x < info.w) - { - MIARCOCTANTSHIFT(dyoffset = nlwidth;); - Pixelate(yorgl, yoffset, info.xorg + x); - Pixelate(yorgl, yoffset, info.xorgo - x); - Pixelate(yorgol, -yoffset, info.xorgo - x); - Pixelate(yorgol, -yoffset, info.xorg + x); - MIARCSTEP(yoffset += dyoffset;, yoffset += nlwidth;); - } - } - else - { - while (y < info.h || x < info.w) - { - MIARCOCTANTSHIFT(dyoffset = nlwidth;); - if ((x == info.start.x) || (y == info.start.y)) - { - mask = info.start.mask; - info.start = info.altstart; - } - DoPix(1, yorgl, yoffset, info.xorg + x); - DoPix(2, yorgl, yoffset, info.xorgo - x); - DoPix(4, yorgol, -yoffset, info.xorgo - x); - DoPix(8, yorgol, -yoffset, info.xorg + x); - if ((x == info.end.x) || (y == info.end.y)) - { - mask = info.end.mask; - info.end = info.altend; - } - MIARCSTEP(yoffset += dyoffset;, yoffset += nlwidth;); - } - } - if ((x == info.start.x) || (y == info.start.y)) - mask = info.start.mask; - DoPix(1, yorgl, yoffset, info.xorg + x); - DoPix(4, yorgol, -yoffset, info.xorgo - x); - if (arc->height & 1) - { - DoPix(2, yorgl, yoffset, info.xorgo - x); - DoPix(8, yorgol, -yoffset, info.xorg + x); - } -} - -void -mfbZeroPolyArcSS(pDraw, pGC, narcs, parcs) - DrawablePtr pDraw; - GCPtr pGC; - int narcs; - xArc *parcs; -{ - register xArc *arc; - register int i; - BoxRec box; - int x2, y2; - RegionPtr cclip; - - if (!pGC->planemask & 1) - return; - cclip = ((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->pCompositeClip; - for (arc = parcs, i = narcs; --i >= 0; arc++) - { - if (miCanZeroArc(arc)) - { - box.x1 = arc->x + pDraw->x; - box.y1 = arc->y + pDraw->y; - /* - * Because box.x2 and box.y2 get truncated to 16 bits, and the - * RECT_IN_REGION test treats the resulting number as a signed - * integer, the RECT_IN_REGION test alone can go the wrong way. - * This can result in a server crash because the rendering - * routines in this file deal directly with cpu addresses - * of pixels to be stored, and do not clip or otherwise check - * that all such addresses are within their respective pixmaps. - * So we only allow the RECT_IN_REGION test to be used for - * values that can be expressed correctly in a signed short. - */ - x2 = box.x1 + (int)arc->width + 1; - box.x2 = x2; - y2 = box.y1 + (int)arc->height + 1; - box.y2 = y2; - if ( (x2 <= MAXSHORT) && (y2 <= MAXSHORT) && - (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) ) - mfbZeroArcSS(pDraw, pGC, arc); - else - miZeroPolyArc(pDraw, pGC, 1, arc); - } - else - miPolyArc(pDraw, pGC, 1, arc); - } -}