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Diffstat (limited to 'afb/afbzerarc.c')
| -rw-r--r-- | afb/afbzerarc.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/afb/afbzerarc.c b/afb/afbzerarc.c deleted file mode 100644 index e53488e02..000000000 --- a/afb/afbzerarc.c +++ /dev/null @@ -1,201 +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. - -********************************************************/ - - -/* 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 - */ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> -#include <X11/Xprotostr.h> -#include "regionstr.h" -#include "gcstruct.h" -#include "pixmapstr.h" -#include "scrnintstr.h" -#include "afb.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((1 << PLST))) -#else -#define LEFTMOST ((PixelType) LONG2CHARS(1)) -#endif - -#define Pixelate(base,yoff,xoff) \ -{ \ - paddr = afbScanlineOffset(base, (yoff) + ((xoff)>>PWSH)); \ - pmask = SCRRIGHT(LEFTMOST, (xoff) & PIM); \ - for (de = 0; de < depthDst; de++, paddr += sizeDst) /* @@@ NEXT PLANE @@@ */ \ - switch (rrops[de]) { \ - case RROP_BLACK: \ - *paddr &= ~pmask; \ - break; \ - case RROP_WHITE: \ - *paddr |= pmask; \ - break; \ - case RROP_INVERT: \ - *paddr ^= pmask; \ - break; \ - case RROP_NOP: \ - break; \ - } \ -} - -#define DoPix(bit,base,yoff,xoff) if (mask & bit) Pixelate(base,yoff,xoff); - -static void -afbZeroArcSS(DrawablePtr pDraw, GCPtr pGC, xArc *arc) -{ - miZeroArcRec info; - Bool do360; - register int de; - register int x, y, a, b, d, mask; - register int k1, k3, dx, dy; - PixelType *addrl; - PixelType *yorgl, *yorgol; - int nlwidth, yoffset, dyoffset; - int sizeDst, depthDst; - PixelType pmask; - register PixelType *paddr; - register unsigned char *rrops; - - rrops = ((afbPrivGC *)dixLookupPrivate(&pGC->devPrivates, - afbGCPrivateKey))->rrops; - afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst, - 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 = afbScanlineDeltaNoBankSwitch(yorgl, info.h, nlwidth); - int xorghp = info.xorg + info.h; - int xorghn = info.xorg - info.h; - - while (1) { - Pixelate(yorgl, yoffset, info.xorg + x); - Pixelate(yorgl, yoffset, info.xorg - x); - Pixelate(yorgol, -yoffset, info.xorg - x); - Pixelate(yorgol, -yoffset, info.xorg + x); - if (a < 0) - break; - Pixelate(yorghl, -xoffset, xorghp - y); - Pixelate(yorghl, -xoffset, xorghn + y); - Pixelate(yorghl, xoffset, xorghn + y); - Pixelate(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 -afbZeroPolyArcSS(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs) -{ - register xArc *arc; - register int i; - BoxRec box; - RegionPtr cclip; - - cclip = pGC->pCompositeClip; - for (arc = parcs, i = narcs; --i >= 0; arc++) { - if (miCanZeroArc(arc)) { - box.x1 = arc->x + pDraw->x; - box.y1 = arc->y + pDraw->y; - box.x2 = box.x1 + (int)arc->width + 1; - box.y2 = box.y1 + (int)arc->height + 1; - if (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) - afbZeroArcSS(pDraw, pGC, arc); - else - miZeroPolyArc(pDraw, pGC, 1, arc); - } else - miPolyArc(pDraw, pGC, 1, arc); - } -} |