/* -*-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 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 query for this function 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 query for this function 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