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

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

diff --git a/dll/opengl/glu32/src/libnurbs/internals/patch.h b/dll/opengl/glu32/src/libnurbs/internals/patch.h
new file mode 100644 (file)
index 0000000..324a259
--- /dev/null
+++ b/dll/opengl/glu32/src/libnurbs/internals/patch.h
@@ -0,0 +1,94 @@
+/*
+ * 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.
+ */
+
+/*
+ * patch.h
+ *
+ */
+
+#ifndef __glupatch_h_
+#define __glupatch_h_
+
+#include "types.h"
+#include "defines.h"
+
+class Quilt;
+class Mapdesc;
+
+
+struct Pspec {
+    REAL               range[3];
+    REAL               sidestep[2];
+    REAL               stepsize;
+    REAL               minstepsize;
+    int                        needsSubdivision;
+};
+
+struct Patchspec : public Pspec {
+    int                        order;
+    int                        stride;
+    void               clamp( REAL );
+    void               getstepsize( REAL );
+    void               singleStep( void );    
+};
+
+class Patch {
+public:
+friend class Subdivider;
+friend class Quilt;
+friend class Patchlist;
+                       Patch( Quilt *, REAL*, REAL *, Patch * );
+                       Patch( Patch &, int, REAL, Patch * );
+    void               bbox( void );
+    void               clamp( void );
+    void               getstepsize( void );
+    int                        cullCheck( void );
+    int                        needsSubdivision( int );
+    int                        needsSamplingSubdivision( void );
+    int                        needsNonSamplingSubdivision( void );
+
+    int                 get_uorder() {return pspec[0].order;}
+    int                 get_vorder() {return pspec[1].order;}
+
+private:
+
+    Mapdesc*           mapdesc;
+    Patch*             next;
+    int                        cullval;
+    int                        notInBbox;
+    int                        needsSampling;
+    REAL               cpts[MAXORDER*MAXORDER*MAXCOORDS]; //culling pts 
+    REAL               spts[MAXORDER*MAXORDER*MAXCOORDS]; //sampling pts 
+    REAL               bpts[MAXORDER*MAXORDER*MAXCOORDS]; //bbox pts
+    Patchspec          pspec[2];
+    void               checkBboxConstraint( void );
+    REAL               bb[2][MAXCOORDS];
+};
+#endif /* __glupatch_h_ */