65fea56f17cd614bc8908264df980a62e1931468vboxsync/************************************************************
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncCopyright 1989, 1998 The Open Group
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncPermission to use, copy, modify, distribute, and sell this software and its
65fea56f17cd614bc8908264df980a62e1931468vboxsyncdocumentation for any purpose is hereby granted without fee, provided that
65fea56f17cd614bc8908264df980a62e1931468vboxsyncthe above copyright notice appear in all copies and that both that
65fea56f17cd614bc8908264df980a62e1931468vboxsynccopyright notice and this permission notice appear in supporting
65fea56f17cd614bc8908264df980a62e1931468vboxsyncdocumentation.
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncThe above copyright notice and this permission notice shall be included in
65fea56f17cd614bc8908264df980a62e1931468vboxsyncall copies or substantial portions of the Software.
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
65fea56f17cd614bc8908264df980a62e1931468vboxsyncIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
65fea56f17cd614bc8908264df980a62e1931468vboxsyncFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
65fea56f17cd614bc8908264df980a62e1931468vboxsyncOPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
65fea56f17cd614bc8908264df980a62e1931468vboxsyncAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
65fea56f17cd614bc8908264df980a62e1931468vboxsyncCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncExcept as contained in this notice, the name of The Open Group shall not be
65fea56f17cd614bc8908264df980a62e1931468vboxsyncused in advertising or otherwise to promote the sale, use or other dealings
65fea56f17cd614bc8908264df980a62e1931468vboxsyncin this Software without prior written authorization from The Open Group.
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync********************************************************/
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsynctypedef struct {
65fea56f17cd614bc8908264df980a62e1931468vboxsync int x;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int y;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int mask;
65fea56f17cd614bc8908264df980a62e1931468vboxsync} miZeroArcPtRec;
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsynctypedef struct {
65fea56f17cd614bc8908264df980a62e1931468vboxsync int x, y, k1, k3, a, b, d, dx, dy;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int alpha, beta;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int xorg, yorg;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int xorgo, yorgo;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int w, h;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int initialMask;
65fea56f17cd614bc8908264df980a62e1931468vboxsync miZeroArcPtRec start, altstart, end, altend;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int firstx, firsty;
65fea56f17cd614bc8908264df980a62e1931468vboxsync int startAngle, endAngle;
65fea56f17cd614bc8908264df980a62e1931468vboxsync} miZeroArcRec;
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync#define miCanZeroArc(arc) (((arc)->width == (arc)->height) || \
65fea56f17cd614bc8908264df980a62e1931468vboxsync (((arc)->width <= 800) && ((arc)->height <= 800)))
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync#define MIARCSETUP() \
65fea56f17cd614bc8908264df980a62e1931468vboxsync x = info.x; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync y = info.y; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync k1 = info.k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync k3 = info.k3; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a = info.a; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync b = info.b; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d = info.d; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync dx = info.dx; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync dy = info.dy
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync#define MIARCOCTANTSHIFT(clause) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync if (a < 0) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync if (y == info.h) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d = -1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a = b = k1 = 0; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync } \
65fea56f17cd614bc8908264df980a62e1931468vboxsync else \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync dx = (k1 << 1) - k3; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync k1 = dx - k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync k3 = -k3; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync b = b + a - (k1 >> 1); \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d = b + ((-a) >> 1) - d + (k3 >> 3); \
65fea56f17cd614bc8908264df980a62e1931468vboxsync if (dx < 0) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a = -((-dx) >> 1) - a; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync else \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a = (dx >> 1) - a; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync dx = 0; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync dy = 1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync clause \
65fea56f17cd614bc8908264df980a62e1931468vboxsync } \
65fea56f17cd614bc8908264df980a62e1931468vboxsync }
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync#define MIARCSTEP(move1,move2) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync b -= k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync if (d < 0) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync x += dx; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync y += dy; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a += k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d += b; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync move1 \
65fea56f17cd614bc8908264df980a62e1931468vboxsync } \
65fea56f17cd614bc8908264df980a62e1931468vboxsync else \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync x++; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync y++; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a += k3; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d -= a; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync move2 \
65fea56f17cd614bc8908264df980a62e1931468vboxsync }
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync#define MIARCCIRCLESTEP(clause) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync b -= k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync x++; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync if (d < 0) \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a += k1; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d += b; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync } \
65fea56f17cd614bc8908264df980a62e1931468vboxsync else \
65fea56f17cd614bc8908264df980a62e1931468vboxsync { \
65fea56f17cd614bc8908264df980a62e1931468vboxsync y++; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync a += k3; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync d -= a; \
65fea56f17cd614bc8908264df980a62e1931468vboxsync clause \
65fea56f17cd614bc8908264df980a62e1931468vboxsync }
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsync/* mizerarc.c */
65fea56f17cd614bc8908264df980a62e1931468vboxsync
65fea56f17cd614bc8908264df980a62e1931468vboxsyncextern _X_EXPORT Bool miZeroArcSetup(xArc * /*arc */ ,
65fea56f17cd614bc8908264df980a62e1931468vboxsync miZeroArcRec * /*info */ ,
65fea56f17cd614bc8908264df980a62e1931468vboxsync Bool /*ok360 */
65fea56f17cd614bc8908264df980a62e1931468vboxsync );