Added MesaLib-7.6

1 files changed, 172 insertions, 0 deletions

diff --git a/mesalib/src/glu/sgi/libnurbs/internals/nurbstess.h b/mesalib/src/glu/sgi/libnurbs/internals/nurbstess.h
new file mode 100644
index 000000000..a6869002f
--- /dev/null
+++ b/mesalib/src/glu/sgi/libnurbs/internals/nurbstess.h
@@ -0,0 +1,172 @@
+/*
+ * 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.
+ */
+
+/*
+ * nurbstess.h
+ *
+ */
+
+#ifndef __glunurbstess_h_
+#define __glunurbstess_h_
+
+#include "mysetjmp.h"
+#include "subdivider.h"
+#include "renderhints.h"
+#include "backend.h"
+#include "maplist.h"
+#include "reader.h"
+#include "nurbsconsts.h"
+
+struct Knotvector;
+class Quilt;
+class DisplayList;
+class BasicCurveEvaluator;
+class BasicSurfaceEvaluator;
+
+class NurbsTessellator {
+public:
+    			NurbsTessellator( BasicCurveEvaluator &c,
+                                          BasicSurfaceEvaluator &e );
+    			virtual ~NurbsTessellator( void );
+
+    void     		getnurbsproperty( long, INREAL * );
+    void     		getnurbsproperty( long, long, INREAL * );
+    void     		setnurbsproperty( long, INREAL );
+    void     		setnurbsproperty( long, long, INREAL );
+    void		setnurbsproperty( long, long, INREAL * );
+    void		setnurbsproperty( long, long, INREAL *, long, long );
+
+    // called before a tessellation begins/ends
+    virtual void	bgnrender( void );
+    virtual void	endrender( void );
+
+    // called to make a display list of the output vertices
+    virtual void	makeobj( int n );
+    virtual void	closeobj( void );
+
+    // called when a error occurs
+    virtual void	errorHandler( int );
+
+    void     		bgnsurface( long );
+    void     		endsurface( void );
+    void     		bgntrim( void );
+    void     		endtrim( void );
+    void     		bgncurve( long );
+    void     		endcurve( void );
+    void     		pwlcurve( long, INREAL[], long, long );
+    void     		nurbscurve( long, INREAL[], long, INREAL[], long, long );
+    void     		nurbssurface( long, INREAL[], long, INREAL[], long, long,
+			    INREAL[], long, long, long );
+
+    void 		defineMap( long, long, long );
+    void		redefineMaps( void );
+
+    // recording of input description
+    void 		discardRecording( void * );
+    void * 		beginRecording( void );
+    void 		endRecording( void );
+    void 		playRecording( void * );
+
+    //for optimizing untrimmed nurbs in the case of domain distance sampling
+    void set_domain_distance_u_rate(REAL u_rate);
+    void set_domain_distance_v_rate(REAL v_rate);
+    void set_is_domain_distance_sampling(int flag);
+    
+
+protected:
+    Renderhints		renderhints;
+    Maplist		maplist;
+    Backend		backend;
+
+private:
+
+    void		resetObjects( void );
+    int			do_check_knots( Knotvector *, const char * );
+    void		do_nurbserror( int );
+    void		do_bgncurve( O_curve * );
+    void		do_endcurve( void );
+    void		do_freeall( void );
+    void		do_freecurveall( O_curve * );
+    void		do_freebgntrim( O_trim * );
+    void		do_freebgncurve( O_curve * );
+    void		do_freepwlcurve( O_pwlcurve * );
+    void		do_freenurbscurve( O_nurbscurve * );
+    void		do_freenurbssurface( O_nurbssurface * );
+    void 		do_freebgnsurface( O_surface * );
+    void		do_bgnsurface( O_surface * );
+    void		do_endsurface( void );
+    void		do_bgntrim( O_trim * );
+    void		do_endtrim( void );
+    void		do_pwlcurve( O_pwlcurve * );
+    void		do_nurbscurve( O_nurbscurve * );
+    void		do_nurbssurface( O_nurbssurface * );
+    void		do_freenurbsproperty( Property * );
+    void		do_setnurbsproperty( Property * );
+    void		do_setnurbsproperty2( Property * );
+
+    Subdivider		subdivider;
+    JumpBuffer* 	jumpbuffer;
+    Pool		o_pwlcurvePool;
+    Pool		o_nurbscurvePool;
+    Pool		o_curvePool;
+    Pool		o_trimPool;
+    Pool		o_surfacePool;
+    Pool		o_nurbssurfacePool;
+    Pool		propertyPool;
+public:
+    Pool		quiltPool;
+private:
+    TrimVertexPool	extTrimVertexPool;
+
+    int			inSurface;		/* bgnsurface seen */
+    int			inCurve;		/* bgncurve seen */
+    int			inTrim;			/* bgntrim seen */
+    int			isCurveModified;	/* curve changed */
+    int			isTrimModified;		/* trim curves changed */
+    int			isSurfaceModified;	/* surface changed */
+    int			isDataValid;		/* all data is good */
+    int			numTrims;		/* valid trim regions */
+    int			playBack;
+
+    O_trim**		nextTrim;		/* place to link o_trim */
+    O_curve**		nextCurve;		/* place to link o_curve */
+    O_nurbscurve**	nextNurbscurve;		/* place to link o_nurbscurve */
+    O_pwlcurve**	nextPwlcurve;		/* place to link o_pwlcurve */
+    O_nurbssurface**	nextNurbssurface;	/* place to link o_nurbssurface */
+
+    O_surface*		currentSurface;
+    O_trim*		currentTrim;
+    O_curve*		currentCurve;
+
+    DisplayList		*dl;
+
+};
+
+#endif /* __glunurbstess_h_ */