reactos/lib/glu32/libnurbs/interface/glrenderer.h

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 */
  34
  35 /*
  36  * glrenderer.h
  37  *
  38  * $Date$ $Revision: 1.1 $
  39  * $Header: /cygdrive/c/RCVS/CVS/ReactOS/reactos/lib/glu32/libnurbs/interface/glrenderer.h,v 1.1 2004/02/02 16:39:08 navaraf Exp $
  40  */
  41
  42 #ifndef __gluglrenderer_h_
  43 #define __gluglrenderer_h_
  44
  45 #include <GL/gl.h>
  46 #include <GL/glu.h>
  47 #include "nurbstess.h"
  48 #include "glsurfeval.h"
  49 #include "glcurveval.h"
  50
  51 class GLUnurbs : public NurbsTessellator {
  52
  53 public:
  54                 GLUnurbs( void );
  55     void        loadGLMatrices( void );
  56     void        useGLMatrices( const GLfloat modelMatrix[16],
  57                                const GLfloat projMatrix[16],
  58                                const GLint viewport[4] );
  59     void                setSamplingMatrixIdentity( void );
  60
  61     void        errorHandler( int );
  62     void        bgnrender( void );
  63     void        endrender( void );
  64     void        setautoloadmode( INREAL value )
  65                     {
  66
  67                       if (value) autoloadmode = GL_TRUE;
  68                       else autoloadmode = GL_FALSE;
  69
  70                     }
  71     GLboolean   getautoloadmode( void ) { return autoloadmode; }
  72
  73     void        (APIENTRY *errorCallback)( GLenum );
  74     void        postError( int which )
  75                     { if (errorCallback) (errorCallback)( (GLenum)which ); }
  76 #ifdef _WIN32
  77     void        putSurfCallBack(GLenum which, void (GLAPIENTRY *fn)() )
  78 #else
  79     void        putSurfCallBack(GLenum which, _GLUfuncptr fn )
  80 #endif
  81       {
  82         curveEvaluator.putCallBack(which, fn);
  83         surfaceEvaluator.putCallBack(which, fn);
  84       }
  85
  86     int         get_vertices_call_back()
  87       {
  88         return surfaceEvaluator.get_vertices_call_back();
  89       }
  90
  91     void        put_vertices_call_back(int flag)
  92       {
  93         surfaceEvaluator.put_vertices_call_back(flag);
  94       }
  95
  96     int         get_callback_auto_normal()
  97       {
  98         return surfaceEvaluator.get_callback_auto_normal();
  99       }
 100
 101     void         put_callback_auto_normal(int flag)
 102       {
 103         surfaceEvaluator.put_callback_auto_normal(flag);
 104       }
 105
 106     void       setNurbsCallbackData(void* userData)
 107       {
 108        curveEvaluator.set_callback_userData(userData);
 109        surfaceEvaluator.set_callback_userData(userData);
 110      }
 111
 112
 113     //for LOD
 114     void LOD_eval_list(int level)
 115       {
 116         surfaceEvaluator.LOD_eval_list(level);
 117       }
 118
 119     //NEWCALLBACK
 120     int        is_callback()
 121       {
 122         return callbackFlag;
 123       }
 124     void       put_callbackFlag(int flag)
 125       {
 126         callbackFlag = flag;
 127         surfaceEvaluator.put_vertices_call_back(flag);
 128         curveEvaluator.put_vertices_call_back(flag);
 129       }
 130
 131 private:
 132     GLboolean                   autoloadmode;
 133     OpenGLSurfaceEvaluator      surfaceEvaluator;
 134     OpenGLCurveEvaluator        curveEvaluator;
 135
 136     void                loadSamplingMatrix( const GLfloat vmat[4][4],
 137                                 const GLint viewport[4] );
 138     void                loadCullingMatrix( GLfloat vmat[4][4] );
 139     static void         grabGLMatrix( GLfloat vmat[4][4] );
 140     static void         transform4d( GLfloat A[4], GLfloat B[4],
 141                                 GLfloat mat[4][4] );
 142     static void         multmatrix4d( GLfloat n[4][4], const GLfloat left[4][4],
 143                                 const GLfloat right[4][4] );
 144
 145    int                  callbackFlag;
 146 };
 147
 148 #endif /* __gluglrenderer_h_ */