2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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36 #ifndef __gluglrenderer_h_
37 #define __gluglrenderer_h_
41 #include "nurbstess.h"
42 #include "glsurfeval.h"
43 #include "glcurveval.h"
46 typedef void (APIENTRY *errorCallbackType)( GLenum );
49 class GLUnurbs : public NurbsTessellator {
53 void loadGLMatrices( void );
54 void useGLMatrices( const GLfloat modelMatrix[16],
55 const GLfloat projMatrix[16],
56 const GLint viewport[4] );
57 void setSamplingMatrixIdentity( void );
59 void errorHandler( int );
60 void bgnrender( void );
61 void endrender( void );
62 void setautoloadmode( INREAL value )
65 if (value) autoloadmode = GL_TRUE;
66 else autoloadmode = GL_FALSE;
69 GLboolean getautoloadmode( void ) { return autoloadmode; }
71 errorCallbackType errorCallback;
72 void postError( int which )
73 { if (errorCallback) (errorCallback)( (GLenum)which ); }
75 void putSurfCallBack(GLenum which, void (GLAPIENTRY *fn)() )
77 void putSurfCallBack(GLenum which, _GLUfuncptr fn )
80 curveEvaluator.putCallBack(which, fn);
81 surfaceEvaluator.putCallBack(which, fn);
84 int get_vertices_call_back()
86 return surfaceEvaluator.get_vertices_call_back();
89 void put_vertices_call_back(int flag)
91 surfaceEvaluator.put_vertices_call_back(flag);
94 int get_callback_auto_normal()
96 return surfaceEvaluator.get_callback_auto_normal();
99 void put_callback_auto_normal(int flag)
101 surfaceEvaluator.put_callback_auto_normal(flag);
104 void setNurbsCallbackData(void* userData)
106 curveEvaluator.set_callback_userData(userData);
107 surfaceEvaluator.set_callback_userData(userData);
112 void LOD_eval_list(int level)
114 surfaceEvaluator.LOD_eval_list(level);
122 void put_callbackFlag(int flag)
125 surfaceEvaluator.put_vertices_call_back(flag);
126 curveEvaluator.put_vertices_call_back(flag);
130 GLboolean autoloadmode;
131 OpenGLSurfaceEvaluator surfaceEvaluator;
132 OpenGLCurveEvaluator curveEvaluator;
134 void loadSamplingMatrix( const GLfloat vmat[4][4],
135 const GLint viewport[4] );
136 void loadCullingMatrix( GLfloat vmat[4][4] );
137 static void grabGLMatrix( GLfloat vmat[4][4] );
138 static void transform4d( GLfloat A[4], GLfloat B[4],
140 static void multmatrix4d( GLfloat n[4][4], const GLfloat left[4][4],
141 const GLfloat right[4][4] );
146 #endif /* __gluglrenderer_h_ */