b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* $XFree86: xc/programs/Xserver/mi/mizerarc.h,v 1.2 2001/08/06 20:51:20 dawes Exp $ */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/************************************************************
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncCopyright 1989, 1998 The Open Group
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncPermission to use, copy, modify, distribute, and sell this software and its
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncdocumentation for any purpose is hereby granted without fee, provided that
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncthe above copyright notice appear in all copies and that both that
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsynccopyright notice and this permission notice appear in supporting
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncdocumentation.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncThe above copyright notice and this permission notice shall be included in
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncall copies or substantial portions of the Software.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncOPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncExcept as contained in this notice, the name of The Open Group shall not be
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncused in advertising or otherwise to promote the sale, use or other dealings
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncin this Software without prior written authorization from The Open Group.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync********************************************************/
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* $Xorg: mizerarc.h,v 1.4 2001/02/09 02:05:22 xorgcvs Exp $ */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsynctypedef struct {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int x;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int y;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int mask;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync} miZeroArcPtRec;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsynctypedef struct {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int x, y, k1, k3, a, b, d, dx, dy;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int alpha, beta;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int xorg, yorg;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int xorgo, yorgo;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int w, h;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int initialMask;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync miZeroArcPtRec start, altstart, end, altend;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int firstx, firsty;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int startAngle, endAngle;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync} miZeroArcRec;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define miCanZeroArc(arc) (((arc)->width == (arc)->height) || \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync (((arc)->width <= 800) && ((arc)->height <= 800)))
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MIARCSETUP() \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync x = info.x; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync y = info.y; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync k1 = info.k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync k3 = info.k3; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a = info.a; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync b = info.b; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d = info.d; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync dx = info.dx; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync dy = info.dy
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MIARCOCTANTSHIFT(clause) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (a < 0) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (y == info.h) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d = -1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a = b = k1 = 0; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync } \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync else \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync dx = (k1 << 1) - k3; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync k1 = dx - k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync k3 = -k3; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync b = b + a - (k1 >> 1); \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d = b + ((-a) >> 1) - d + (k3 >> 3); \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (dx < 0) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a = -((-dx) >> 1) - a; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync else \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a = (dx >> 1) - a; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync dx = 0; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync dy = 1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync clause \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync } \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync }
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MIARCSTEP(move1,move2) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync b -= k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (d < 0) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync x += dx; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync y += dy; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a += k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d += b; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync move1 \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync } \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync else \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync x++; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync y++; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a += k3; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d -= a; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync move2 \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync }
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MIARCCIRCLESTEP(clause) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync b -= k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync x++; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (d < 0) \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a += k1; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d += b; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync } \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync else \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync { \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync y++; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync a += k3; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync d -= a; \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync clause \
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync }
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* mizerarc.c */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern Bool miZeroArcSetup(
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync xArc * /*arc*/,
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync miZeroArcRec * /*info*/,
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync Bool /*ok360*/
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern DDXPointPtr miZeroArcPts(
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync xArc * /*arc*/,
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync DDXPointPtr /*pts*/
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync