Synchronize with trunk's revision r57629.
[reactos.git] / dll / opengl / glu32 / src / libnurbs / interface / glrenderer.h
1 /*
2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice including the dates of first publication and
13 * either this permission notice or a reference to
14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Except as contained in this notice, the name of Silicon Graphics, Inc.
26 * shall not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization from
28 * Silicon Graphics, Inc.
29 */
30
31 /*
32 * glrenderer.h
33 *
34 */
35
36 #ifndef __gluglrenderer_h_
37 #define __gluglrenderer_h_
38
39 #include <GL/gl.h>
40 #include <GL/glu.h>
41 #include "nurbstess.h"
42 #include "glsurfeval.h"
43 #include "glcurveval.h"
44
45 extern "C" {
46 typedef void (APIENTRY *errorCallbackType)( GLenum );
47 }
48
49 class GLUnurbs : public NurbsTessellator {
50
51 public:
52 GLUnurbs( void );
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 );
58
59 void errorHandler( int );
60 void bgnrender( void );
61 void endrender( void );
62 void setautoloadmode( INREAL value )
63 {
64
65 if (value) autoloadmode = GL_TRUE;
66 else autoloadmode = GL_FALSE;
67
68 }
69 GLboolean getautoloadmode( void ) { return autoloadmode; }
70
71 errorCallbackType errorCallback;
72 void postError( int which )
73 { if (errorCallback) (errorCallback)( (GLenum)which ); }
74 #ifdef _WIN32
75 void putSurfCallBack(GLenum which, void (GLAPIENTRY *fn)() )
76 #else
77 void putSurfCallBack(GLenum which, _GLUfuncptr fn )
78 #endif
79 {
80 curveEvaluator.putCallBack(which, fn);
81 surfaceEvaluator.putCallBack(which, fn);
82 }
83
84 int get_vertices_call_back()
85 {
86 return surfaceEvaluator.get_vertices_call_back();
87 }
88
89 void put_vertices_call_back(int flag)
90 {
91 surfaceEvaluator.put_vertices_call_back(flag);
92 }
93
94 int get_callback_auto_normal()
95 {
96 return surfaceEvaluator.get_callback_auto_normal();
97 }
98
99 void put_callback_auto_normal(int flag)
100 {
101 surfaceEvaluator.put_callback_auto_normal(flag);
102 }
103
104 void setNurbsCallbackData(void* userData)
105 {
106 curveEvaluator.set_callback_userData(userData);
107 surfaceEvaluator.set_callback_userData(userData);
108 }
109
110
111 //for LOD
112 void LOD_eval_list(int level)
113 {
114 surfaceEvaluator.LOD_eval_list(level);
115 }
116
117 //NEWCALLBACK
118 int is_callback()
119 {
120 return callbackFlag;
121 }
122 void put_callbackFlag(int flag)
123 {
124 callbackFlag = flag;
125 surfaceEvaluator.put_vertices_call_back(flag);
126 curveEvaluator.put_vertices_call_back(flag);
127 }
128
129 private:
130 GLboolean autoloadmode;
131 OpenGLSurfaceEvaluator surfaceEvaluator;
132 OpenGLCurveEvaluator curveEvaluator;
133
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],
139 GLfloat mat[4][4] );
140 static void multmatrix4d( GLfloat n[4][4], const GLfloat left[4][4],
141 const GLfloat right[4][4] );
142
143 int callbackFlag;
144 };
145
146 #endif /* __gluglrenderer_h_ */