Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / dll / opengl / glu32 / src / libnurbs / internals / trimvertex.h

diff --git a/dll/opengl/glu32/src/libnurbs/internals/trimvertex.h b/dll/opengl/glu32/src/libnurbs/internals/trimvertex.h
new file mode 100644 (file)
index 0000000..2780b76
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+++ b/dll/opengl/glu32/src/libnurbs/internals/trimvertex.h
@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+
+/*
+ * trimvertex.h
+ *
+ */
+
+#ifndef __glutrimvertex_h_
+#define __glutrimvertex_h_
+
+#include "types.h"
+
+/*#define USE_OPTTT*/
+
+class TrimVertex { /* a vertex on a trim curve */
+public:
+    REAL               param[2];       /* parametric space coords */
+#ifdef USE_OPTTT
+    REAL                cache_point[4]; //only when USE_OPTTT is on in slicer.c++
+    REAL                cache_normal[3];
+#endif
+    long               nuid;
+};
+
+typedef class TrimVertex *TrimVertex_p;
+
+inline REAL  
+det3( TrimVertex *a, TrimVertex *b, TrimVertex *c ) 
+{         
+    return a->param[0] * (b->param[1]-c->param[1]) + 
+          b->param[0] * (c->param[1]-a->param[1]) + 
+          c->param[0] * (a->param[1]-b->param[1]);
+}
+
+#endif /* __glutrimvertex_h_ */