040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync/************************************************************
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncCopyright 1989, 1998 The Open Group
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncPermission to use, copy, modify, distribute, and sell this software and its
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncdocumentation for any purpose is hereby granted without fee, provided that
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncthe above copyright notice appear in all copies and that both that
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsynccopyright notice and this permission notice appear in supporting
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncdocumentation.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncThe above copyright notice and this permission notice shall be included in
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncall copies or substantial portions of the Software.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncOPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncExcept as contained in this notice, the name of The Open Group shall not be
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncused in advertising or otherwise to promote the sale, use or other dealings
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncin this Software without prior written authorization from The Open Group.
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync********************************************************/
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsynctypedef struct {
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int x;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int y;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int mask;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync} miZeroArcPtRec;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsynctypedef struct {
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int x, y, k1, k3, a, b, d, dx, dy;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int alpha, beta;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int xorg, yorg;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int xorgo, yorgo;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int w, h;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int initialMask;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync miZeroArcPtRec start, altstart, end, altend;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int firstx, firsty;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync int startAngle, endAngle;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync} miZeroArcRec;
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define miCanZeroArc(arc) (((arc)->width == (arc)->height) || \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync (((arc)->width <= 800) && ((arc)->height <= 800)))
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define MIARCSETUP() \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync x = info.x; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync y = info.y; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync k1 = info.k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync k3 = info.k3; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a = info.a; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync b = info.b; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d = info.d; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync dx = info.dx; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync dy = info.dy
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define MIARCOCTANTSHIFT(clause) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync if (a < 0) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync if (y == info.h) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d = -1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a = b = k1 = 0; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync } \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync else \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync dx = (k1 << 1) - k3; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync k1 = dx - k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync k3 = -k3; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync b = b + a - (k1 >> 1); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d = b + ((-a) >> 1) - d + (k3 >> 3); \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync if (dx < 0) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a = -((-dx) >> 1) - a; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync else \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a = (dx >> 1) - a; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync dx = 0; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync dy = 1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync clause \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync } \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync }
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define MIARCSTEP(move1,move2) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync b -= k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync if (d < 0) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync x += dx; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync y += dy; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a += k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d += b; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync move1 \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync } \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync else \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync x++; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync y++; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a += k3; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d -= a; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync move2 \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync }
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync#define MIARCCIRCLESTEP(clause) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync b -= k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync x++; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync if (d < 0) \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a += k1; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d += b; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync } \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync else \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync { \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync y++; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync a += k3; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync d -= a; \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync clause \
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync }
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync/* mizerarc.c */
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsyncextern Bool miZeroArcSetup(
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync xArc * /*arc*/,
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync miZeroArcRec * /*info*/,
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync Bool /*ok360*/
040abec2534dadc53ebc8fa378ef03f4feecb7dbvboxsync);