cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/************************************************************
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncCopyright 1989, 1998 The Open Group
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncPermission to use, copy, modify, distribute, and sell this software and its
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncdocumentation for any purpose is hereby granted without fee, provided that
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncthe above copyright notice appear in all copies and that both that
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynccopyright notice and this permission notice appear in supporting
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncdocumentation.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncThe above copyright notice and this permission notice shall be included in
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncall copies or substantial portions of the Software.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncOPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncExcept as contained in this notice, the name of The Open Group shall not be
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncused in advertising or otherwise to promote the sale, use or other dealings
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncin this Software without prior written authorization from The Open Group.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync********************************************************/
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int x;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int y;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int mask;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync} miZeroArcPtRec;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int x, y, k1, k3, a, b, d, dx, dy;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int alpha, beta;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int xorg, yorg;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int xorgo, yorgo;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int w, h;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int initialMask;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync miZeroArcPtRec start, altstart, end, altend;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int firstx, firsty;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int startAngle, endAngle;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync} miZeroArcRec;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define miCanZeroArc(arc) (((arc)->width == (arc)->height) || \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (((arc)->width <= 800) && ((arc)->height <= 800)))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MIARCSETUP() \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync x = info.x; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync y = info.y; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync k1 = info.k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync k3 = info.k3; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a = info.a; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync b = info.b; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d = info.d; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync dx = info.dx; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync dy = info.dy
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MIARCOCTANTSHIFT(clause) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync if (a < 0) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync if (y == info.h) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d = -1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a = b = k1 = 0; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync } \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync else \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync dx = (k1 << 1) - k3; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync k1 = dx - k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync k3 = -k3; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync b = b + a - (k1 >> 1); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d = b + ((-a) >> 1) - d + (k3 >> 3); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync if (dx < 0) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a = -((-dx) >> 1) - a; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync else \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a = (dx >> 1) - a; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync dx = 0; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync dy = 1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync clause \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync } \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync }
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MIARCSTEP(move1,move2) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync b -= k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync if (d < 0) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync x += dx; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync y += dy; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a += k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d += b; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync move1 \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync } \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync else \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync x++; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync y++; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a += k3; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d -= a; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync move2 \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync }
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MIARCCIRCLESTEP(clause) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync b -= k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync x++; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync if (d < 0) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a += k1; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d += b; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync } \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync else \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync y++; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync a += k3; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync d -= a; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync clause \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync }
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/* mizerarc.c */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT Bool miZeroArcSetup(
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync xArc * /*arc*/,
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync miZeroArcRec * /*info*/,
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync Bool /*ok360*/
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync);