This file is indexed.

/usr/include/osg/GLU is in libopenscenegraph-dev 3.2.1-7ubuntu4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSG_GLU
#define OSG_GLU 1

#include <osg/GL>

namespace osg
{

/* Pixel storage modes, used by gluScaleImage */
struct OSG_EXPORT PixelStorageModes
{
    // sets defaults as per glGet docs in OpenGL red book
    PixelStorageModes();

    // use glGet's to retrieve all the current settings
    void retrieveStoreModes();

    // use glGet's to retrieve all the current 3D settings
    void retrieveStoreModes3D();

    GLint pack_alignment;
    GLint pack_row_length;
    GLint pack_skip_rows;
    GLint pack_skip_pixels;
    GLint pack_lsb_first;
    GLint pack_swap_bytes;
    GLint pack_skip_images;
    GLint pack_image_height;

    GLint unpack_alignment;
    GLint unpack_row_length;
    GLint unpack_skip_rows;
    GLint unpack_skip_pixels;
    GLint unpack_lsb_first;
    GLint unpack_swap_bytes;
    GLint unpack_skip_images;
    GLint unpack_image_height;
} ;

extern OSG_EXPORT const GLubyte * gluErrorString (GLenum error);

/** OSG specific gluScaleImage function that allows you to pass in the PixelStoreModes, which
  * enables the code to avoid glGet's that are associated with the conventional gluScaleImage function.
  * Avoiding glGet's allows this gluScaleImage function to be called at any time, from any thread, there
  * is no need to have a graphics context current.*/
extern OSG_EXPORT GLint gluScaleImage (PixelStorageModes* psm, GLenum format, GLsizei wIn, GLsizei hIn, GLenum typeIn, const void *dataIn, GLsizei wOut, GLsizei hOut, GLenum typeOut, GLvoid* dataOut);

/** Traditional GLU gluScaleImage function that sets up the PixelStoreModes automatically by doing glGets.;
  * The use of glGet's means that you can only call this function from a thread with a valid graphics context.
  * The use of glGet's will also result in lower performance due to the round trip to the OpenGL driver.*/
extern OSG_EXPORT GLint gluScaleImage (GLenum format, GLsizei wIn, GLsizei hIn, GLenum typeIn, const void *dataIn, GLsizei wOut, GLsizei hOut, GLenum typeOut, GLvoid* dataOut);

extern OSG_EXPORT GLint gluBuild1DMipmapLevels (GLenum target, GLint internalFormat, GLsizei width, GLenum format, GLenum type, GLint level, GLint base, GLint max, const void *data);
extern OSG_EXPORT GLint gluBuild1DMipmaps (GLenum target, GLint internalFormat, GLsizei width, GLenum format, GLenum type, const void *data);
extern OSG_EXPORT GLint gluBuild2DMipmapLevels (GLenum target, GLint internalFormat, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint level, GLint base, GLint max, const void *data);
extern OSG_EXPORT GLint gluBuild2DMipmaps (GLenum target, GLint internalFormat, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *data);

typedef void (GL_APIENTRY * GLTexImage3DProc)      ( GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);

/** Small variation on normal gluBuild3DMipmapLevels as we pass in the function pointer to glTexImage3D rather than rely on GLU style querry for this functon pointer.*/
extern OSG_EXPORT GLint gluBuild3DMipmapLevels (GLTexImage3DProc glTextImage3DProc, GLenum target, GLint internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLint level, GLint base, GLint max, const void *data);

/** Small variation on normal gluBuild3DMipmapLevels as we pass in the function pointer to glTexImage3D rather than rely on GLU style querry for this functon pointer.*/
extern OSG_EXPORT GLint gluBuild3DMipmaps (GLTexImage3DProc glTextImage3DProc, GLenum target, GLint internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data);

/* ErrorCode */
#define GLU_INVALID_ENUM                   100900
#define GLU_INVALID_VALUE                  100901
#define GLU_OUT_OF_MEMORY                  100902
#define GLU_INCOMPATIBLE_GL_VERSION        100903
#define GLU_INVALID_OPERATION              100904

/* Boolean */
#define GLU_FALSE                          0
#define GLU_TRUE                           1

/* QuadricDrawStyle */
#define GLU_POINT                          100010
#define GLU_LINE                           100011
#define GLU_FILL                           100012
#define GLU_SILHOUETTE                     100013

/* QuadricCallback */
/*      GLU_ERROR */

/* QuadricNormal */
#define GLU_SMOOTH                         100000
#define GLU_FLAT                           100001
#define GLU_NONE                           100002

/* QuadricOrientation */
#define GLU_OUTSIDE                        100020
#define GLU_INSIDE                         100021

/* TessCallback */
#define GLU_TESS_BEGIN                     100100
#define GLU_BEGIN                          100100
#define GLU_TESS_VERTEX                    100101
#define GLU_VERTEX                         100101
#define GLU_TESS_END                       100102
#define GLU_END                            100102
#define GLU_TESS_ERROR                     100103
#define GLU_TESS_EDGE_FLAG                 100104
#define GLU_EDGE_FLAG                      100104
#define GLU_TESS_COMBINE                   100105
#define GLU_TESS_BEGIN_DATA                100106
#define GLU_TESS_VERTEX_DATA               100107
#define GLU_TESS_END_DATA                  100108
#define GLU_TESS_ERROR_DATA                100109
#define GLU_TESS_EDGE_FLAG_DATA            100110
#define GLU_TESS_COMBINE_DATA              100111

/* TessContour */
#define GLU_CW                             100120
#define GLU_CCW                            100121
#define GLU_INTERIOR                       100122
#define GLU_EXTERIOR                       100123
#define GLU_UNKNOWN                        100124

/* TessProperty */
#define GLU_TESS_WINDING_RULE              100140
#define GLU_TESS_BOUNDARY_ONLY             100141
#define GLU_TESS_TOLERANCE                 100142

/* TessError */
#define GLU_TESS_ERROR1                    100151
#define GLU_TESS_ERROR2                    100152
#define GLU_TESS_ERROR3                    100153
#define GLU_TESS_ERROR4                    100154
#define GLU_TESS_ERROR5                    100155
#define GLU_TESS_ERROR6                    100156
#define GLU_TESS_ERROR7                    100157
#define GLU_TESS_ERROR8                    100158
#define GLU_TESS_MISSING_BEGIN_POLYGON     100151
#define GLU_TESS_MISSING_BEGIN_CONTOUR     100152
#define GLU_TESS_MISSING_END_POLYGON       100153
#define GLU_TESS_MISSING_END_CONTOUR       100154
#define GLU_TESS_COORD_TOO_LARGE           100155
#define GLU_TESS_NEED_COMBINE_CALLBACK     100156

/* TessWinding */
#define GLU_TESS_WINDING_ODD               100130
#define GLU_TESS_WINDING_NONZERO           100131
#define GLU_TESS_WINDING_POSITIVE          100132
#define GLU_TESS_WINDING_NEGATIVE          100133
#define GLU_TESS_WINDING_ABS_GEQ_TWO       100134

struct GLUtesselator;
typedef GLUtesselator GLUtesselatorObj;
typedef GLUtesselator GLUtriangulatorObj;

#define GLU_TESS_MAX_COORD 1.0e150

/* Internal convenience typedefs */
typedef void (GL_APIENTRY * _GLUfuncptr)();
typedef void (GL_APIENTRY * GLU_TESS_CALLBACK)();

extern OSG_EXPORT GLUtesselator* GL_APIENTRY gluNewTess (void);
extern OSG_EXPORT void GL_APIENTRY gluDeleteTess (GLUtesselator* tess);

extern OSG_EXPORT void GL_APIENTRY gluTessBeginContour (GLUtesselator* tess);
extern OSG_EXPORT void GL_APIENTRY gluTessCallback (GLUtesselator* tess, GLenum which, _GLUfuncptr CallBackFunc);
extern OSG_EXPORT void GL_APIENTRY gluTessEndContour (GLUtesselator* tess);
extern OSG_EXPORT void GL_APIENTRY gluTessNormal (GLUtesselator* tess, GLdouble valueX, GLdouble valueY, GLdouble valueZ);
extern OSG_EXPORT void GL_APIENTRY gluTessProperty (GLUtesselator* tess, GLenum which, GLdouble data);
extern OSG_EXPORT void GL_APIENTRY gluTessVertex (GLUtesselator* tess, GLdouble *location, GLvoid* data);
extern OSG_EXPORT void GL_APIENTRY gluTessBeginPolygon (GLUtesselator* tess, GLvoid* data);
extern OSG_EXPORT void GL_APIENTRY gluTessEndPolygon (GLUtesselator* tess);
extern OSG_EXPORT void GL_APIENTRY gluGetTessProperty( GLUtesselator *tess, GLenum which, GLdouble *value );

}

#endif  // __osgGLU_h