76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
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#ifndef __gluglrenderer_h_
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#define __gluglrenderer_h_
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/**************************************************************************
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* *
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* Copyright (C) 1991, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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/*
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* glrenderer.h - $Revision: 1.4 $
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*/
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#ifndef NT
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#pragma once
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#endif
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#include <GL/gl.h>
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#include <GL/glu.h>
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#include "nurbstes.h"
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#include "glsurfev.h"
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#include "glcurvev.h"
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class GLUnurbs : public NurbsTessellator {
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public:
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GLUnurbs( void );
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void loadGLMatrices( void );
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#ifdef NT
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void useGLMatrices( const GLfloat modelMatrix[4][4],
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const GLfloat projMatrix[4][4],
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const GLint viewport[4] );
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#else
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void useGLMatrices( const GLfloat modelMatrix[16],
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const GLfloat projMatrix[16],
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const GLint viewport[4] );
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#endif
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void errorHandler( int );
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void bgnrender( void );
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void endrender( void );
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void setautoloadmode( INREAL value )
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{ if (value) autoloadmode = GL_TRUE;
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else autoloadmode = GL_FALSE; }
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GLboolean getautoloadmode( void ) { return autoloadmode; }
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#ifdef NT
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GLUnurbsErrorProc errorCallback;
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#else
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void (*errorCallback)( GLenum );
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#endif
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void postError( GLenum which )
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{ if (errorCallback) (*errorCallback)( which ); }
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private:
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GLboolean autoloadmode;
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OpenGLSurfaceEvaluator surfaceEvaluator;
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OpenGLCurveEvaluator curveEvaluator;
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void loadSamplingMatrix( const GLfloat vmat[4][4],
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const GLint viewport[4] );
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void loadCullingMatrix( GLfloat vmat[4][4] );
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static void grabGLMatrix( GLfloat vmat[4][4] );
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static void transform4d( GLfloat A[4], GLfloat B[4],
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GLfloat mat[4][4] );
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static void multmatrix4d( GLfloat n[4][4], GLfloat left[4][4],
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GLfloat right[4][4] );
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};
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#endif /* __gluglrenderer_h_ */
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