X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fmi%2Fmifillarc.h;fp=Xserver%2Fprograms%2FXserver%2Fmi%2Fmifillarc.h;h=f4692dec0b9162da4d4e606d13dc1ef55ed66095;hp=0000000000000000000000000000000000000000;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hpb=e3340a110a3b01756b8e67531395a33b40a17d37

diff --git a/Xserver/programs/Xserver/mi/mifillarc.h b/Xserver/programs/Xserver/mi/mifillarc.h
new file mode 100644
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--- /dev/null
+++ b/Xserver/programs/Xserver/mi/mifillarc.h
@@ -0,0 +1,225 @@
+/************************************************************
+
+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.
+
+********************************************************/
+
+/* $XConsortium: mifillarc.h,v 5.9 95/01/11 16:19:24 dpw Exp $ */
+/* $XFree86: xc/programs/Xserver/mi/mifillarc.h,v 3.2 1995/01/28 16:15:53 dawes Exp $ */
+
+#define FULLCIRCLE (360 * 64)
+
+typedef struct _miFillArc {
+    int xorg, yorg;
+    int y;
+    int dx, dy;
+    int e;
+    int ym, yk, xm, xk;
+} miFillArcRec;
+
+/* could use 64-bit integers */
+typedef struct _miFillArcD {
+    int xorg, yorg;
+    int y;
+    int dx, dy;
+    double e;
+    double ym, yk, xm, xk;
+} miFillArcDRec;
+
+#define miFillArcEmpty(arc) (!(arc)->angle2 || \
+			     !(arc)->width || !(arc)->height || \
+			     (((arc)->width == 1) && ((arc)->height & 1)))
+
+#define miCanFillArc(arc) (((arc)->width == (arc)->height) || \
+			   (((arc)->width <= 800) && ((arc)->height <= 800)))
+
+#define MIFILLARCSETUP() \
+    x = 0; \
+    y = info.y; \
+    e = info.e; \
+    xk = info.xk; \
+    xm = info.xm; \
+    yk = info.yk; \
+    ym = info.ym; \
+    dx = info.dx; \
+    dy = info.dy; \
+    xorg = info.xorg; \
+    yorg = info.yorg
+
+#define MIFILLARCSTEP(slw) \
+    e += yk; \
+    while (e >= 0) \
+    { \
+	x++; \
+	xk -= xm; \
+	e += xk; \
+    } \
+    y--; \
+    yk -= ym; \
+    slw = (x << 1) + dx; \
+    if ((e == xk) && (slw > 1)) \
+	slw--
+
+#define MIFILLCIRCSTEP(slw) MIFILLARCSTEP(slw)
+#define MIFILLELLSTEP(slw) MIFILLARCSTEP(slw)
+
+#define miFillArcLower(slw) (((y + dy) != 0) && ((slw > 1) || (e != xk)))
+
+typedef struct _miSliceEdge {
+    int	    x;
+    int     stepx;
+    int	    deltax;
+    int	    e;
+    int	    dy;
+    int	    dx;
+} miSliceEdgeRec, *miSliceEdgePtr;
+
+typedef struct _miArcSlice {
+    miSliceEdgeRec edge1, edge2;
+    int min_top_y, max_top_y;
+    int min_bot_y, max_bot_y;
+    Bool edge1_top, edge2_top;
+    Bool flip_top, flip_bot;
+} miArcSliceRec;
+
+#define MIARCSLICESTEP(edge) \
+    edge.x -= edge.stepx; \
+    edge.e -= edge.dx; \
+    if (edge.e <= 0) \
+    { \
+	edge.x -= edge.deltax; \
+	edge.e += edge.dy; \
+    }
+
+#define miFillSliceUpper(slice) \
+		((y >= slice.min_top_y) && (y <= slice.max_top_y))
+
+#define miFillSliceLower(slice) \
+		((y >= slice.min_bot_y) && (y <= slice.max_bot_y))
+
+#define MIARCSLICEUPPER(xl,xr,slice,slw) \
+    xl = xorg - x; \
+    xr = xl + slw - 1; \
+    if (slice.edge1_top && (slice.edge1.x < xr)) \
+	xr = slice.edge1.x; \
+    if (slice.edge2_top && (slice.edge2.x > xl)) \
+	xl = slice.edge2.x;
+
+#define MIARCSLICELOWER(xl,xr,slice,slw) \
+    xl = xorg - x; \
+    xr = xl + slw - 1; \
+    if (!slice.edge1_top && (slice.edge1.x > xl)) \
+	xl = slice.edge1.x; \
+    if (!slice.edge2_top && (slice.edge2.x < xr)) \
+	xr = slice.edge2.x;
+
+#define MIWIDEARCSETUP(x,y,dy,slw,e,xk,xm,yk,ym) \
+    x = 0; \
+    y = slw >> 1; \
+    yk = y << 3; \
+    xm = 8; \
+    ym = 8; \
+    if (dy) \
+    { \
+	xk = 0; \
+	if (slw & 1) \
+	    e = -1; \
+	else \
+	    e = -(y << 2) - 2; \
+    } \
+    else \
+    { \
+	y++; \
+	yk += 4; \
+	xk = -4; \
+	if (slw & 1) \
+	    e = -(y << 2) - 3; \
+	else \
+	    e = - (y << 3); \
+    }
+
+#define MIFILLINARCSTEP(slw) \
+    ine += inyk; \
+    while (ine >= 0) \
+    { \
+	inx++; \
+	inxk -= inxm; \
+	ine += inxk; \
+    } \
+    iny--; \
+    inyk -= inym; \
+    slw = (inx << 1) + dx; \
+    if ((ine == inxk) && (slw > 1)) \
+	slw--
+
+#define miFillInArcLower(slw) (((iny + dy) != 0) && \
+			       ((slw > 1) || (ine != inxk)))
+
+extern int miFreeArcCache(
+#if NeedFunctionPrototypes
+    pointer /*data*/,
+    XID /*id*/
+#endif
+);
+
+extern struct finalSpan *realAllocSpan(
+#if NeedFunctionPrototypes
+    void
+#endif
+);
+
+extern void miFillArcSetup(
+#if NeedFunctionPrototypes
+    xArc * /*arc*/,
+    miFillArcRec * /*info*/
+#endif
+);
+
+extern void miFillArcDSetup(
+#if NeedFunctionPrototypes
+    xArc * /*arc*/,
+    miFillArcDRec * /*info*/
+#endif
+);
+
+extern void miEllipseAngleToSlope(
+#if NeedFunctionPrototypes
+    int /*angle*/,
+    int /*width*/,
+    int /*height*/,
+    int * /*dxp*/,
+    int * /*dyp*/,
+    double * /*d_dxp*/,
+    double * /*d_dyp*/
+#endif
+);
+
+extern void miFillArcSliceSetup(
+#if NeedFunctionPrototypes
+    xArc * /*arc*/,
+    miArcSliceRec * /*slice*/,
+    GCPtr /*pGC*/
+#endif
+);
+