--- /dev/null
+/*
+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * 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 including the dates of first publication and
+ * either this permission notice or a reference to
+ * http://oss.sgi.com/projects/FreeB/
+ * 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
+ * SILICON GRAPHICS, INC. 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 Silicon Graphics, Inc.
+ * shall not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization from
+ * Silicon Graphics, Inc.
+ */
+
+/*
+ * reader.h
+ *
+ */
+
+#ifndef __glureader_h_
+#define __glureader_h_
+
+#include "bufpool.h"
+#include "types.h"
+
+enum Curvetype { ct_nurbscurve, ct_pwlcurve, ct_none };
+
+struct Property;
+struct O_surface;
+struct O_nurbssurface;
+struct O_trim;
+class O_pwlcurve;
+struct O_nurbscurve;
+struct O_curve;
+class Quilt;
+class TrimVertex;
+
+
+struct O_curve : public PooledObj {
+ union {
+ O_nurbscurve *o_nurbscurve;
+ O_pwlcurve *o_pwlcurve;
+ } curve;
+ Curvetype curvetype; /* arc type: pwl or nurbs */
+ O_curve * next; /* next arc in loop */
+ O_surface * owner; /* owning surface */
+ int used; /* curve called in cur surf */
+ int save; /* 1 if in display list */
+ long nuid;
+ O_curve() { next = 0; used = 0; owner = 0;
+ curve.o_pwlcurve = 0; curvetype = ct_none; save = 0; nuid = 0; }
+ };
+
+struct O_nurbscurve : public PooledObj {
+ Quilt *bezier_curves; /* array of bezier curves */
+ long type; /* range descriptor */
+ REAL tesselation; /* tesselation tolerance */
+ int method; /* tesselation method */
+ O_nurbscurve * next; /* next curve in list */
+ int used; /* curve called in cur surf */
+ int save; /* 1 if in display list */
+ O_curve * owner; /* owning curve */
+ O_nurbscurve( long _type )
+ { bezier_curves = 0; type = _type; tesselation = 0; method = 0; next = 0; used = 0; save = 0; owner = 0; }
+ };
+
+class O_pwlcurve : public PooledObj {
+public:
+ TrimVertex *pts; /* array of trim vertices */
+ int npts; /* number of trim vertices */
+ O_pwlcurve * next; /* next curve in list */
+ int used; /* curve called in cur surf */
+ int save; /* 1 if in display list */
+ O_curve * owner; /* owning curve */
+ O_pwlcurve( long, long, INREAL *, long, TrimVertex * );
+ };
+
+struct O_trim : public PooledObj {
+ O_curve *o_curve; /* closed trim loop */
+ O_trim * next; /* next loop along trim */
+ int save; /* 1 if in display list */
+ O_trim() { next = 0; o_curve = 0; save = 0; }
+ };
+
+struct O_nurbssurface : public PooledObj {
+ Quilt * bezier_patches;/* array of bezier patches */
+ long type; /* range descriptor */
+ O_surface * owner; /* owning surface */
+ O_nurbssurface * next; /* next surface in chain */
+ int save; /* 1 if in display list */
+ int used; /* 1 if prev called in block */
+ O_nurbssurface( long _type )
+ { bezier_patches = 0; type = _type; owner = 0; next = 0; save = 0; used = 0; }
+ };
+
+struct O_surface : public PooledObj {
+ O_nurbssurface * o_nurbssurface; /* linked list of surfaces */
+ O_trim * o_trim; /* list of trim loops */
+ int save; /* 1 if in display list */
+ long nuid;
+ O_surface() { o_trim = 0; o_nurbssurface = 0; save = 0; nuid = 0; }
+ };
+
+struct Property : public PooledObj {
+ long type;
+ long tag;
+ REAL value;
+ int save; /* 1 if in display list */
+ Property( long _type, long _tag, INREAL _value )
+ { type = _type; tag = _tag; value = (REAL) _value; save = 0; }
+ Property( long _tag, INREAL _value )
+ { type = 0; tag = _tag; value = (REAL) _value; save = 0; }
+ };
+
+class NurbsTessellator;
+#endif /* __glureader_h_ */
projects / reactos.git / blobdiff