1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
14#ifndef OSG_GLEXTENSIONS
15#define OSG_GLEXTENSIONS 1
18#include <osg/GLDefines>
29/** Return floating-point OpenGL/GLES version number.
30 * Note: Must only be called within a valid OpenGL context,
31 * undefined behavior may occur otherwise.
33extern OSG_EXPORT float getGLVersionNumber();
35/** Return true if "extension" is contained in "extensionString".
37extern OSG_EXPORT bool isExtensionInExtensionString(const char *extension, const char *extensionString);
39/** Return true if OpenGL/GLES "extension" is supported.
40 * Note: Must only be called within a valid OpenGL context,
41 * undefined behavior may occur otherwise.
43extern OSG_EXPORT bool isGLExtensionSupported(unsigned int contextID, const char *extension);
45/** Return true if either OpenGL/GLES "extension1" or "extension2" is supported.
46 * Note: Must only be called within a valid OpenGL context,
47 * undefined behavior may occur otherwise.
49extern OSG_EXPORT bool isGLExtensionSupported(unsigned int contextID, const char *extension1, const char *extension2);
51/** Return true if OpenGL/GLES "extension" or minimum OpenGL version number is supported.
52 * Note: Must only be called within a valid OpenGL context,
53 * undefined behavior may occur otherwise.
55extern OSG_EXPORT bool isGLExtensionOrVersionSupported(unsigned int contextID, const char *extension, float requiredGlVersion);
57/** Return the address of the specified OpenGL/GLES function.
58 * Return NULL if function not supported by OpenGL library.
59 * Note, glGLExtensionFuncPtr is declared inline so that the code
60 * is compiled locally to the calling code. This should get by Windows'
61 * dumb implementation of having different GL function ptr's for each
62 * library when linked to it.
64extern OSG_EXPORT void* getGLExtensionFuncPtr(const char *funcName);
66/** Set a list of extensions to disable for different OpenGL renderers. This allows
67 * OSG applications to work around OpenGL drivers' bugs which are due to problematic extension support.
68 * The format of the string is:
69 * "GLRendererString : ExtensionName, ExtensionName; GLRenderString2 : ExtensionName;"
70 * An example of is : "SUN_XVR1000:GL_EXT_texture_filter_anisotropic"
71 * The default setting of GLExtensionDisableString is obtained from the OSG_GL_EXTENSION_DISABLE
72 * environmental variable.
74extern OSG_EXPORT void setGLExtensionDisableString(const std::string& disableString);
76/** Get the list of extensions that are disabled for various OpenGL renderers. */
77extern OSG_EXPORT std::string& getGLExtensionDisableString();
79/** Return the address of the specified OpenGL function. If not found then
80 * check a second function name, if this fails then return NULL as function is
81 * not supported by OpenGL library. This is used for checking something
82 * like glActiveTexture (which is in OGL1.3) or glActiveTextureARB.
84inline void* getGLExtensionFuncPtr(const char *funcName, const char *fallbackFuncName)
86 void* ptr = getGLExtensionFuncPtr(funcName);
87 return (ptr!=0) ? ptr : getGLExtensionFuncPtr(fallbackFuncName);
90/** Return the address of the specified OpenGL function. If not found then
91 * check a second function name, if this fails then return NULL as function is
92 * not supported by OpenGL library. This is used for checking something
93 * like glActiveTexture (which is in OGL1.3) or glActiveTextureARB.
95inline void* getGLExtensionFuncPtr(const char *funcName1, const char *funcName2, const char *funcName3)
97 void* ptr = getGLExtensionFuncPtr(funcName1);
98 return (ptr!=0) ? ptr : getGLExtensionFuncPtr(funcName2, funcName3);
101template<typename T, typename R>
102bool convertPointer(T& dest, R src)
104 memcpy(&dest, &src, sizeof(src));
108template<typename T, typename R>
109T convertPointerType(R src)
112 memcpy(&dest, &src, sizeof(src));
117bool setGLExtensionFuncPtr(T& t, const char* str1, bool validContext=true)
119 return convertPointer(t, validContext ? osg::getGLExtensionFuncPtr(str1) : 0);
123bool setGLExtensionFuncPtr(T& t, const char* str1, const char* str2, bool validContext=true)
125 return convertPointer(t, validContext ? osg::getGLExtensionFuncPtr(str1, str2) : 0);
129bool setGLExtensionFuncPtr(T& t, const char* str1, const char* str2, const char* str3, bool validContext=true)
131 return convertPointer(t, validContext ? osg::getGLExtensionFuncPtr(str1, str2, str3) : 0);
134class VertexAttribAlias
140 VertexAttribAlias(const VertexAttribAlias& rhs):
141 _location(rhs._location),
142 _glName(rhs._glName),
143 _osgName(rhs._osgName),
144 _declaration(rhs._declaration) {}
146 VertexAttribAlias(GLuint location, const std::string glName, const std::string osgName, const std::string& declaration):
150 _declaration(declaration) {}
152 VertexAttribAlias &operator = (const VertexAttribAlias &o) {
153 _location = o._location;
155 _osgName = o._osgName;
156 _declaration = o._declaration;
163 std::string _osgName;
164 std::string _declaration;
167/** Main GLExtensions class for managing OpenGL extensions per graphics context.*/
168class OSG_EXPORT GLExtensions : public osg::Referenced
171 GLExtensions(unsigned int in_contextID);
173 /** Function to call to get the extension of a specified context.
174 * If the Exentsion object for that context has not yet been created then
175 * and the 'createIfNotInitalized' flag been set to false then returns NULL.
176 * If 'createIfNotInitalized' is true then the Extensions object is
177 * automatically created. However, in this case the extension object
178 * only be created with the graphics context associated with ContextID..*/
179 static GLExtensions* Get(unsigned int in_contextID,bool createIfNotInitalized);
181 /** allows users to override the extensions across graphics contexts.
182 * typically used when you have different extensions supported across graphics pipes
183 * but need to ensure that they all use the same low common denominator extensions.*/
184 static void Set(unsigned int in_contextID, GLExtensions* extensions);
186 // C++-friendly convenience wrapper methods
187 GLuint getCurrentProgram() const;
188 bool getProgramInfoLog( GLuint program, std::string& result ) const;
189 bool getShaderInfoLog( GLuint shader, std::string& result ) const;
190 bool getAttribLocation( const char* attribName, GLuint& slot ) const;
191 bool getFragDataLocation( const char* fragDataName, GLuint& slot) const;
193 unsigned int contextID;
195 float glslLanguageVersion;
197 bool isGlslSupported;
198 bool isShaderObjectsSupported;
199 bool isVertexShaderSupported;
200 bool isFragmentShaderSupported;
201 bool isLanguage100Supported;
202 bool isGeometryShader4Supported;
203 bool areTessellationShadersSupported;
204 bool isGpuShader4Supported;
205 bool isUniformBufferObjectSupported;
206 bool isGetProgramBinarySupported;
207 bool isGpuShaderFp64Supported;
208 bool isShaderAtomicCountersSupported;
209 bool isRectangleSupported;
210 bool isCubeMapSupported;
211 bool isClipControlSupported;
213 void (GL_APIENTRY * glDrawBuffers)(GLsizei n, const GLenum *bufs);
214 void (GL_APIENTRY * glAttachShader)(GLuint program, GLuint shader);
215 void (GL_APIENTRY * glBindAttribLocation)(GLuint program, GLuint index, const GLchar *name);
216 void (GL_APIENTRY * glCompileShader)(GLuint shader);
217 GLuint (GL_APIENTRY * glCreateProgram)(void);
218 GLuint (GL_APIENTRY * glCreateShader)(GLenum type);
219 void (GL_APIENTRY * glDeleteProgram)(GLuint program);
220 void (GL_APIENTRY * glDeleteObjectARB)(GLuint program);
221 void (GL_APIENTRY * glDeleteShader)(GLuint shader);
222 void (GL_APIENTRY * glDetachShader)(GLuint program, GLuint shader);
223 void (GL_APIENTRY * glDisableVertexAttribArray)(GLuint index);
224 void (GL_APIENTRY * glEnableVertexAttribArray)(GLuint index);
225 void (GL_APIENTRY * glGetActiveAttrib)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
226 void (GL_APIENTRY * glGetActiveUniform)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
227 void (GL_APIENTRY * glGetAttachedShaders)(GLuint program, GLsizei maxCount, GLsizei *count, GLuint *obj);
228 GLint (GL_APIENTRY * glGetAttribLocation)(GLuint program, const GLchar *name);
229 void (GL_APIENTRY * glGetProgramiv)(GLuint program, GLenum pname, GLint *params);
230 void (GL_APIENTRY * glGetObjectParameterivARB)(GLuint program, GLenum pname, GLint *params);
231 void (GL_APIENTRY * glGetProgramInfoLog)(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
232 void (GL_APIENTRY * glGetInfoLogARB)(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
233 void (GL_APIENTRY * glGetShaderiv)(GLuint shader, GLenum pname, GLint *params);
234 void (GL_APIENTRY * glGetShaderInfoLog)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
235 void (GL_APIENTRY * glGetShaderSource)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source);
236 GLint (GL_APIENTRY * glGetUniformLocation)(GLuint program, const GLchar *name);
237 void (GL_APIENTRY * glGetUniformfv)(GLuint program, GLint location, GLfloat *params);
238 void (GL_APIENTRY * glGetUniformiv)(GLuint program, GLint location, GLint *params);
239 void (GL_APIENTRY * glGetVertexAttribdv)(GLuint index, GLenum pname, GLdouble *params);
240 void (GL_APIENTRY * glGetVertexAttribfv)(GLuint index, GLenum pname, GLfloat *params);
241 void (GL_APIENTRY * glGetVertexAttribiv)(GLuint index, GLenum pname, GLint *params);
242 void (GL_APIENTRY * glGetVertexAttribPointerv)(GLuint index, GLenum pname, GLvoid* *pointer);
243 GLboolean (GL_APIENTRY * glIsProgram)(GLuint program);
244 GLboolean (GL_APIENTRY * glIsShader)(GLuint shader);
245 void (GL_APIENTRY * glLinkProgram)(GLuint program);
246 void (GL_APIENTRY * glShaderSource)(GLuint shader, GLsizei count, const GLchar* *string, const GLint *length);
247 void (GL_APIENTRY * glUseProgram)(GLuint program);
248 void (GL_APIENTRY * glUniform1f)(GLint location, GLfloat v0);
249 void (GL_APIENTRY * glUniform2f)(GLint location, GLfloat v0, GLfloat v1);
250 void (GL_APIENTRY * glUniform3f)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
251 void (GL_APIENTRY * glUniform4f)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
252 void (GL_APIENTRY * glUniform1i)(GLint location, GLint v0);
253 void (GL_APIENTRY * glUniform2i)(GLint location, GLint v0, GLint v1);
254 void (GL_APIENTRY * glUniform3i)(GLint location, GLint v0, GLint v1, GLint v2);
255 void (GL_APIENTRY * glUniform4i)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
256 void (GL_APIENTRY * glUniform1fv)(GLint location, GLsizei count, const GLfloat *value);
257 void (GL_APIENTRY * glUniform2fv)(GLint location, GLsizei count, const GLfloat *value);
258 void (GL_APIENTRY * glUniform3fv)(GLint location, GLsizei count, const GLfloat *value);
259 void (GL_APIENTRY * glUniform4fv)(GLint location, GLsizei count, const GLfloat *value);
260 void (GL_APIENTRY * glUniform1iv)(GLint location, GLsizei count, const GLint *value);
261 void (GL_APIENTRY * glUniform2iv)(GLint location, GLsizei count, const GLint *value);
262 void (GL_APIENTRY * glUniform3iv)(GLint location, GLsizei count, const GLint *value);
263 void (GL_APIENTRY * glUniform4iv)(GLint location, GLsizei count, const GLint *value);
264 void (GL_APIENTRY * glUniformMatrix2fv)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
265 void (GL_APIENTRY * glUniformMatrix3fv)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
266 void (GL_APIENTRY * glUniformMatrix4fv)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
267 void (GL_APIENTRY * glValidateProgram)(GLuint program);
268 void (GL_APIENTRY * glVertexAttrib1d)(GLuint index, GLdouble x);
269 void (GL_APIENTRY * glVertexAttrib1dv)(GLuint index, const GLdouble *v);
270 void (GL_APIENTRY * glVertexAttrib1f)(GLuint index, GLfloat x);
271 void (GL_APIENTRY * glVertexAttrib1fv)(GLuint index, const GLfloat *v);
272 void (GL_APIENTRY * glVertexAttrib1s)(GLuint index, GLshort x);
273 void (GL_APIENTRY * glVertexAttrib1sv)(GLuint index, const GLshort *v);
274 void (GL_APIENTRY * glVertexAttrib2d)(GLuint index, GLdouble x, GLdouble y);
275 void (GL_APIENTRY * glVertexAttrib2dv)(GLuint index, const GLdouble *v);
276 void (GL_APIENTRY * glVertexAttrib2f)(GLuint index, GLfloat x, GLfloat y);
277 void (GL_APIENTRY * glVertexAttrib2fv)(GLuint index, const GLfloat *v);
278 void (GL_APIENTRY * glVertexAttrib2s)(GLuint index, GLshort x, GLshort y);
279 void (GL_APIENTRY * glVertexAttrib2sv)(GLuint index, const GLshort *v);
280 void (GL_APIENTRY * glVertexAttrib3d)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
281 void (GL_APIENTRY * glVertexAttrib3dv)(GLuint index, const GLdouble *v);
282 void (GL_APIENTRY * glVertexAttrib3f)(GLuint index, GLfloat x, GLfloat y, GLfloat z);
283 void (GL_APIENTRY * glVertexAttrib3fv)(GLuint index, const GLfloat *v);
284 void (GL_APIENTRY * glVertexAttrib3s)(GLuint index, GLshort x, GLshort y, GLshort z);
285 void (GL_APIENTRY * glVertexAttrib3sv)(GLuint index, const GLshort *v);
286 void (GL_APIENTRY * glVertexAttrib4Nbv)(GLuint index, const GLbyte *v);
287 void (GL_APIENTRY * glVertexAttrib4Niv)(GLuint index, const GLint *v);
288 void (GL_APIENTRY * glVertexAttrib4Nsv)(GLuint index, const GLshort *v);
289 void (GL_APIENTRY * glVertexAttrib4Nub)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
290 void (GL_APIENTRY * glVertexAttrib4Nubv)(GLuint index, const GLubyte *v);
291 void (GL_APIENTRY * glVertexAttrib4Nuiv)(GLuint index, const GLuint *v);
292 void (GL_APIENTRY * glVertexAttrib4Nusv)(GLuint index, const GLushort *v);
293 void (GL_APIENTRY * glVertexAttrib4bv)(GLuint index, const GLbyte *v);
294 void (GL_APIENTRY * glVertexAttrib4d)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
295 void (GL_APIENTRY * glVertexAttrib4dv)(GLuint index, const GLdouble *v);
296 void (GL_APIENTRY * glVertexAttrib4f)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
297 void (GL_APIENTRY * glVertexAttrib4fv)(GLuint index, const GLfloat *v);
298 void (GL_APIENTRY * glVertexAttrib4iv)(GLuint index, const GLint *v);
299 void (GL_APIENTRY * glVertexAttrib4s)(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
300 void (GL_APIENTRY * glVertexAttrib4sv)(GLuint index, const GLshort *v);
301 void (GL_APIENTRY * glVertexAttrib4ubv)(GLuint index, const GLubyte *v);
302 void (GL_APIENTRY * glVertexAttrib4uiv)(GLuint index, const GLuint *v);
303 void (GL_APIENTRY * glVertexAttrib4usv)(GLuint index, const GLushort *v);
304 void (GL_APIENTRY * glVertexAttribPointer) (unsigned int, GLint, GLenum, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
305 void (GL_APIENTRY * glVertexAttribIPointer) (unsigned int, GLint, GLenum, GLsizei stride, const GLvoid *pointer);
306 void (GL_APIENTRY * glVertexAttribLPointer) (unsigned int, GLint, GLenum, GLsizei stride, const GLvoid *pointer);
307 void (GL_APIENTRY * glVertexAttribDivisor)(GLuint index, GLuint divisor);
309 void (GL_APIENTRY * glUniformMatrix2x3fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
310 void (GL_APIENTRY * glUniformMatrix3x2fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
311 void (GL_APIENTRY * glUniformMatrix2x4fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
312 void (GL_APIENTRY * glUniformMatrix4x2fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
313 void (GL_APIENTRY * glUniformMatrix3x4fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
314 void (GL_APIENTRY * glUniformMatrix4x3fv)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
315 void (GL_APIENTRY * glClipControl)( GLenum origin, GLenum depthMode );
316 void (GL_APIENTRY * glProgramParameteri)( GLuint program, GLenum pname, GLint value );
317 void (GL_APIENTRY * glPatchParameteri)( GLenum pname, GLint value );
318 void (GL_APIENTRY * glPatchParameterfv)( GLenum pname, const GLfloat* values );
319 void (GL_APIENTRY * glGetUniformuiv)( GLuint program, GLint location, GLuint* params );
320 void (GL_APIENTRY * glBindFragDataLocation)( GLuint program, GLuint color, const GLchar* name );
321 void (GL_APIENTRY * glBindFragDataLocationIndexed) (GLuint program, GLuint colorNumber, GLuint index, const GLchar * name);
322 GLint (GL_APIENTRY * glGetFragDataIndex) (GLuint program, const GLchar * name);
323 GLint (GL_APIENTRY * glGetFragDataLocation)( GLuint program, const GLchar* name);
324 void (GL_APIENTRY * glUniform1ui)( GLint location, GLuint v0 );
325 void (GL_APIENTRY * glUniform2ui)( GLint location, GLuint v0, GLuint v1 );
326 void (GL_APIENTRY * glUniform3ui)( GLint location, GLuint v0, GLuint v1, GLuint v2 );
327 void (GL_APIENTRY * glUniform4ui)( GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3 );
328 void (GL_APIENTRY * glUniform1uiv)( GLint location, GLsizei count, const GLuint *value );
329 void (GL_APIENTRY * glUniform2uiv)( GLint location, GLsizei count, const GLuint *value );
330 void (GL_APIENTRY * glUniform3uiv)( GLint location, GLsizei count, const GLuint *value );
331 void (GL_APIENTRY * glUniform4uiv)( GLint location, GLsizei count, const GLuint *value );
332 void (GL_APIENTRY * glUniform1i64 )(GLint location, GLint64 x) ;
333 void (GL_APIENTRY * glUniform1i64v )(GLint location, GLsizei count, const GLint64* value) ;
334 void (GL_APIENTRY * glUniform1ui64 )(GLint location, GLuint64 x) ;
335 void (GL_APIENTRY * glUniform1ui64v)(GLint location, GLsizei count, const GLuint64* value) ;
336 void (GL_APIENTRY * glUniform2i64 )(GLint location, GLint64 x, GLint64 y) ;
337 void (GL_APIENTRY * glUniform2i64v )(GLint location, GLsizei count, const GLint64* value) ;
338 void (GL_APIENTRY * glUniform2ui64 )(GLint location, GLuint64 x, GLuint64 y) ;
339 void (GL_APIENTRY * glUniform2ui64v)(GLint location, GLsizei count, const GLuint64* value) ;
340 void (GL_APIENTRY * glUniform3i64 )(GLint location, GLint64 x, GLint64 y, GLint64 z) ;
341 void (GL_APIENTRY * glUniform3i64v )(GLint location, GLsizei count, const GLint64* value) ;
342 void (GL_APIENTRY * glUniform3ui64 )(GLint location, GLuint64 x, GLuint64 y, GLuint64 z) ;
343 void (GL_APIENTRY * glUniform3ui64v)(GLint location, GLsizei count, const GLuint64* value) ;
344 void (GL_APIENTRY * glUniform4i64 )(GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w) ;
345 void (GL_APIENTRY * glUniform4i64v )(GLint location, GLsizei count, const GLint64* value) ;
346 void (GL_APIENTRY * glUniform4ui64 )(GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w) ;
347 void (GL_APIENTRY * glUniform4ui64v)(GLint location, GLsizei count, const GLuint64* value) ;
348 GLuint (GL_APIENTRY * glGetHandleARB) (GLenum pname);
349 void (GL_APIENTRY * glGetUniformIndices)(GLuint program, GLsizei uniformCount, const GLchar* *uniformNames, GLuint *uniformIndices);
350 void (GL_APIENTRY * glGetActiveUniformsiv)(GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params);
351 void (GL_APIENTRY * glGetActiveUniformName)(GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformName);
352 GLuint (GL_APIENTRY * glGetUniformBlockIndex)(GLuint program, const GLchar *uniformBlockName);
353 void (GL_APIENTRY * glGetActiveUniformBlockiv)(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params);
354 void (GL_APIENTRY * glGetActiveUniformBlockName)(GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName);
355 void (GL_APIENTRY * glUniformBlockBinding)(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
356 void (GL_APIENTRY * glGetProgramBinary)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary);
357 void (GL_APIENTRY * glProgramBinary)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length);
358 void (GL_APIENTRY * glUniform1d)(GLint location, GLdouble v0);
359 void (GL_APIENTRY * glUniform2d)(GLint location, GLdouble v0, GLdouble v1);
360 void (GL_APIENTRY * glUniform3d)(GLint location, GLdouble v0, GLdouble v1, GLdouble v2);
361 void (GL_APIENTRY * glUniform4d)(GLint location, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
362 void (GL_APIENTRY * glUniform1dv)(GLint location, GLsizei count, const GLdouble *value);
363 void (GL_APIENTRY * glUniform2dv)(GLint location, GLsizei count, const GLdouble *value);
364 void (GL_APIENTRY * glUniform3dv)(GLint location, GLsizei count, const GLdouble *value);
365 void (GL_APIENTRY * glUniform4dv)(GLint location, GLsizei count, const GLdouble *value);
366 void (GL_APIENTRY * glUniformMatrix2dv)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
367 void (GL_APIENTRY * glUniformMatrix3dv)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
368 void (GL_APIENTRY * glUniformMatrix4dv)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
369 void (GL_APIENTRY * glUniformMatrix2x3dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
370 void (GL_APIENTRY * glUniformMatrix3x2dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
371 void (GL_APIENTRY * glUniformMatrix2x4dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
372 void (GL_APIENTRY * glUniformMatrix4x2dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
373 void (GL_APIENTRY * glUniformMatrix3x4dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
374 void (GL_APIENTRY * glUniformMatrix4x3dv)( GLint location, GLsizei count, GLboolean transpose, const GLdouble* value );
375 void (GL_APIENTRY * glGetActiveAtomicCounterBufferiv)( GLuint program, GLuint bufferIndex, GLenum pname, GLint* params );
376 void (GL_APIENTRY * glDispatchCompute)( GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ );
378 // ARB_bindless_texture
379 GLuint64 (GL_APIENTRY* glGetTextureHandle)(GLuint texture);
380 GLuint64 (GL_APIENTRY* glGetTextureSamplerHandle)(GLuint texture, GLuint sampler);
381 void (GL_APIENTRY* glMakeTextureHandleResident)(GLuint64 handle);
382 void (GL_APIENTRY* glMakeTextureHandleNonResident)(GLuint64 handle);
383 GLboolean (GL_APIENTRY* glIsTextureHandleResident)(GLuint64 handle);
384 GLuint64 (GL_APIENTRY* glGetImageHandle)(GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format);
385 void (GL_APIENTRY* glMakeImageHandleResident)(GLuint64 handle);
386 void (GL_APIENTRY* glMakeImageHandleNonResident)(GLuint64 handle);
387 GLboolean (GL_APIENTRY* glIsImageHandleResident)(GLuint64 handle);
388 void (GL_APIENTRY* glUniformHandleui64)(GLint location, GLuint64 handle);
389 void (GL_APIENTRY* glUniformHandleuiv64)(GLint location, GLsizei count, GLuint64 *handles);
390 void (GL_APIENTRY* glProgramUniformHandleui64)(GLuint program, GLint location, GLuint64 handle);
391 void (GL_APIENTRY* glProgramUniformHandleuiv64)(GLuint program, GLint location, GLsizei count, GLuint64 *handles);
393 // Buffer Object extensions
394 bool isBufferObjectSupported;
399 bool isTransformFeedbackSupported;
401 void (GL_APIENTRY * glGenBuffers) (GLsizei n, GLuint *buffers);
402 void (GL_APIENTRY * glBindBuffer) (GLenum target, GLuint buffer);
403 void (GL_APIENTRY * glBufferData) (GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
404 void (GL_APIENTRY * glBufferSubData) (GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid *data);
405 void (GL_APIENTRY * glDeleteBuffers) (GLsizei n, const GLuint *buffers);
406 GLboolean (GL_APIENTRY * glIsBuffer) (GLuint buffer);
407 void (GL_APIENTRY * glGetBufferSubData) (GLenum target, GLintptr offset, GLsizeiptr size, GLvoid *data);
408 GLvoid* (GL_APIENTRY * glBufferStorage) (GLenum target, GLintptr size, const GLvoid * data, GLbitfield flags);
409 GLvoid* (GL_APIENTRY * glNamedBufferStorage) (GLuint buffer, GLsizei size, const void * data, GLbitfield flags);
410 GLvoid* (GL_APIENTRY * glMapBuffer) (GLenum target, GLenum access);
411 GLvoid* (GL_APIENTRY * glMapBufferRange)(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
412 GLboolean (GL_APIENTRY * glUnmapBuffer) (GLenum target);
413 void (GL_APIENTRY * glGetBufferParameteriv) (GLenum target, GLenum pname, GLint *params);
414 void (GL_APIENTRY * glGetBufferPointerv) (GLenum target, GLenum pname, GLvoid* *params);
415 void (GL_APIENTRY * glBindBufferRange) (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
416 void (GL_APIENTRY * glBindBufferBase) (GLenum target, GLuint index, GLuint buffer);
417 void (GL_APIENTRY * glTexBuffer) (GLenum target, GLenum internalFormat, GLuint buffer);
419 void (GL_APIENTRY * glMemoryBarrier)( GLbitfield barriers );
421 // BlendFunc extensions
422 bool isBlendFuncSeparateSupported;
423 void (GL_APIENTRY * glBlendFuncSeparate) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha) ;
425 void (GL_APIENTRY * glBlendFunci) (GLuint buf, GLenum src, GLenum dst);
426 void (GL_APIENTRY * glBlendFuncSeparatei) (GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha) ;
429 // Vertex Array extensions
430 bool isSecondaryColorSupported;
431 bool isFogCoordSupported;
432 bool isMultiTexSupported;
433 bool isOcclusionQuerySupported;
434 bool isARBOcclusionQuerySupported;
435 bool isTimerQuerySupported;
436 bool isARBTimerQuerySupported;
440 void (GL_APIENTRY * glDrawArraysInstanced)( GLenum mode, GLint first, GLsizei count, GLsizei primcount );
441 void (GL_APIENTRY * glDrawElementsInstanced)( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei primcount );
443 void (GL_APIENTRY * glSecondaryColor3ubv) (const GLubyte* coord);
444 void (GL_APIENTRY * glSecondaryColor3fv) (const GLfloat* coord);
446 void (GL_APIENTRY * glFogCoordfv) (const GLfloat* coord);
448 void (GL_APIENTRY * glMultiTexCoord1f) (GLenum target,GLfloat coord);
449 void (GL_APIENTRY * glMultiTexCoord4f) (GLenum target, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
451 void (GL_APIENTRY * glMultiTexCoord1fv) (GLenum target,const GLfloat* coord);
452 void (GL_APIENTRY * glMultiTexCoord2fv) (GLenum target,const GLfloat* coord);
453 void (GL_APIENTRY * glMultiTexCoord3fv) (GLenum target,const GLfloat* coord);
454 void (GL_APIENTRY * glMultiTexCoord4fv) (GLenum target,const GLfloat* coord);
456 void (GL_APIENTRY * glMultiTexCoord1d) (GLenum target,GLdouble coord);
457 void (GL_APIENTRY * glMultiTexCoord1dv) (GLenum target,const GLdouble* coord);
458 void (GL_APIENTRY * glMultiTexCoord2dv) (GLenum target,const GLdouble* coord);
459 void (GL_APIENTRY * glMultiTexCoord3dv) (GLenum target,const GLdouble* coord);
460 void (GL_APIENTRY * glMultiTexCoord4dv) (GLenum target,const GLdouble* coord);
462 // Occlusion Query extensions
463 void (GL_APIENTRY * glGenOcclusionQueries) ( GLsizei n, GLuint *ids );
464 void (GL_APIENTRY * glDeleteOcclusionQueries) ( GLsizei n, const GLuint *ids );
465 GLboolean (GL_APIENTRY * glIsOcclusionQuery) ( GLuint id );
466 void (GL_APIENTRY * glBeginOcclusionQuery) ( GLuint id );
467 void (GL_APIENTRY * glEndOcclusionQuery) ();
468 void (GL_APIENTRY * glGetOcclusionQueryiv) ( GLuint id, GLenum pname, GLint *params );
469 void (GL_APIENTRY * glGetOcclusionQueryuiv) ( GLuint id, GLenum pname, GLuint *params );
471 void (GL_APIENTRY * glGetQueryiv) (GLenum target, GLenum pname, GLint *params);
472 void (GL_APIENTRY * glGenQueries) (GLsizei n, GLuint *ids);
473 void (GL_APIENTRY * glBeginQuery) (GLenum target, GLuint id);
474 void (GL_APIENTRY * glEndQuery) (GLenum target);
475 void (GL_APIENTRY * glBeginQueryIndexed) (GLenum target, GLuint index, GLuint id);
476 void (GL_APIENTRY * glEndQueryIndexed) (GLenum target, GLuint index);
477 void (GL_APIENTRY * glQueryCounter) (GLuint id, GLenum target);
478 GLboolean (GL_APIENTRY * glIsQuery) (GLuint id);
479 void (GL_APIENTRY * glDeleteQueries) (GLsizei n, const GLuint *ids);
480 void (GL_APIENTRY * glGetQueryObjectiv) (GLuint id, GLenum pname, GLint *params);
481 void (GL_APIENTRY * glGetQueryObjectuiv) (GLuint id, GLenum pname, GLuint *params);
482 void (GL_APIENTRY * glGetQueryObjectui64v) (GLuint id, GLenum pname, GLuint64 *params);
483 void (GL_APIENTRY * glGetInteger64v) (GLenum pname, GLint64 *params);
486 // SampleMaski functionality
487 bool isOpenGL32upported;
488 bool isTextureMultisampleSupported;
489 bool isSampleMaskiSupported;
491 void (GL_APIENTRY * glSampleMaski) (GLuint maskNumber, GLbitfield mask);
493 // Vertex/Fragment Programs
494 bool isVertexProgramSupported;
495 bool isFragmentProgramSupported;
497 void (GL_APIENTRY * glBindProgram) (GLenum target, GLuint id);
498 void (GL_APIENTRY * glGenPrograms) (GLsizei n, GLuint *programs);
499 void (GL_APIENTRY * glDeletePrograms) (GLsizei n, GLuint *programs);
500 void (GL_APIENTRY * glProgramString) (GLenum target, GLenum format, GLsizei len, const void *string);
501 void (GL_APIENTRY * glProgramLocalParameter4fv) (GLenum target, GLuint index, const GLfloat *params);
503 // Sample Extensions (OpenGL>=3.3)
504 void (GL_APIENTRY * glSamplerParameteri)(GLuint sampler, GLenum param, GLint value);
505 void (GL_APIENTRY * glSamplerParameterf)(GLuint sampler, GLenum param, GLfloat value);
506 void (GL_APIENTRY * glSamplerParameteriv)(GLuint sampler, GLenum param, GLint *value);
507 void (GL_APIENTRY * glSamplerParameterfv)(GLuint sampler, GLenum param, GLfloat *value);
508 void (GL_APIENTRY * glSamplerParameterIiv)(GLuint sampler, GLenum param, GLint *value);
509 void (GL_APIENTRY * glSamplerParameterIuiv)(GLuint sampler, GLenum param, GLuint *value);
511 void (GL_APIENTRY * glGetSamplerParameteriv)(GLuint sampler, GLenum param, GLint *value);
512 void (GL_APIENTRY * glGetSamplerParameterfv)(GLuint sampler, GLenum param, GLfloat *value);
513 void (GL_APIENTRY * glGetSamplerParameterIiv)(GLuint sampler, GLenum param, GLint *value);
514 void (GL_APIENTRY * glGetSamplerParameterIuiv)(GLuint sampler, GLenum param, GLuint *value);
516 void (GL_APIENTRY * glGenSamplers)(GLsizei size,GLuint * samplers);
517 void (GL_APIENTRY * glDeleteSamplers)(GLsizei size,const GLuint * samplers);
518 void (GL_APIENTRY * glBindSampler)(GLuint tu, GLuint sampler);
519 GLboolean (GL_APIENTRY * glIsSampler)(GLuint id);
521 // Texture Extensions
522 bool isMultiTexturingSupported;
523 bool isTextureFilterAnisotropicSupported;
524 bool isTextureSwizzleSupported;
525 bool isTextureCompressionARBSupported;
526 bool isTextureCompressionS3TCSupported;
527 bool isTextureCompressionPVRTC2BPPSupported;
528 bool isTextureCompressionPVRTC4BPPSupported;
529 bool isTextureCompressionETCSupported;
530 bool isTextureCompressionETC2Supported;
531 bool isTextureCompressionRGTCSupported;
532 bool isTextureCompressionPVRTCSupported;
533 bool isTextureMirroredRepeatSupported;
534 bool isTextureEdgeClampSupported;
535 bool isTextureBorderClampSupported;
536 bool isGenerateMipMapSupported;
537 bool preferGenerateMipmapSGISForPowerOfTwo;
538 bool isTextureMultisampledSupported;
539 bool isShadowSupported;
540 bool isShadowAmbientSupported;
541 bool isTextureMaxLevelSupported;
542 GLint maxTextureSize;
543 bool isClientStorageSupported;
544 bool isTextureIntegerEXTSupported;
545 bool isTextureStorageEnabled;
547 bool isTexStorage2DSupported() const { return glTexStorage2D != 0; }
548 bool isCompressedTexImage2DSupported() const { return glCompressedTexImage2D!=0; }
549 bool isCompressedTexSubImage2DSupported() const { return glCompressedTexSubImage2D!=0; }
550 bool isBindImageTextureSupported() const { return glBindImageTexture!=0; }
551 bool isNonPowerOfTwoTextureMipMappedSupported;
552 bool isNonPowerOfTwoTextureNonMipMappedSupported;
553 bool isNonPowerOfTwoTextureSupported(GLenum filter) const
555 return (filter==GL_LINEAR || filter==GL_NEAREST) ?
556 isNonPowerOfTwoTextureNonMipMappedSupported :
557 isNonPowerOfTwoTextureMipMappedSupported;
560 ///immutable texture storage and texture view
561 void (GL_APIENTRY * glTexStorage1D) (GLenum target, GLsizei numMipmapLevels, GLenum internalformat, GLsizei width);
562 void (GL_APIENTRY * glTextureStorage1D) (GLuint texture, GLsizei numMipmapLevels, GLenum internalformat, GLsizei width);
563 void (GL_APIENTRY * glTexStorage2D) (GLenum target, GLsizei numMipmapLevels, GLenum internalformat, GLsizei width, GLsizei height);
564 void (GL_APIENTRY * glTextureStorage2D) (GLuint texture, GLsizei numMipmapLevels, GLenum internalformat, GLsizei width, GLsizei height);
565 void (GL_APIENTRY * glTexStorage3D) ( GLenum target, GLsizei numMipmapLevels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
566 void (GL_APIENTRY * glTextureStorage3D) ( GLuint texture, GLsizei numMipmapLevels,GLenum internalformat,GLsizei width,GLsizei height,GLsizei depth);
567 void (GL_APIENTRY * glTexStorage2DMultisample) ( GLenum target, GLsizei numSamples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
568 void (GL_APIENTRY * glTexStorage3DMultisample) ( GLenum target, GLsizei numSamples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
569 void (GL_APIENTRY * glTextureView) ( GLuint texture, GLenum target, GLuint orig, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers);
571 void (GL_APIENTRY * glCompressedTexImage2D) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data);
572 void (GL_APIENTRY * glCompressedTexSubImage2D) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const GLvoid *data);
573 void (GL_APIENTRY * glGetCompressedTexImage) (GLenum target, GLint level, GLvoid *data);
574 void (GL_APIENTRY * glTexImage2DMultisample) (GLenum target, GLsizei samples, GLint internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
575 void (GL_APIENTRY * glTexParameterIiv) (GLenum target, GLenum pname, const GLint* data);
576 void (GL_APIENTRY * glTexParameterIuiv) (GLenum target, GLenum pname, const GLuint* data);
577 void (GL_APIENTRY * glBindImageTexture) (GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format);
580 // Texture3D extensions
581 bool isTexture3DSupported;
582 bool isTexture3DFast;
583 GLint maxTexture3DSize;
584 bool isCompressedTexImage3DSupported() const { return glCompressedTexImage3D!=0; }
585 bool isCompressedTexSubImage3DSupported() const { return glCompressedTexSubImage3D!=0; }
587 void (GL_APIENTRY * glTexImage3D) ( GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
588 void (GL_APIENTRY * glTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
590 void (GL_APIENTRY * glCopyTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height );
591 void (GL_APIENTRY * glCompressedTexImage3D) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const GLvoid *data);
592 void (GL_APIENTRY * glCompressedTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const GLvoid *data );
593 void (GL_APIENTRY *glTexImage3DMultisample) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
594 void (GL_APIENTRY *glGetMultisamplefv) (GLenum pname, GLuint index, GLfloat *val);
596 // Texture2DArray extensions
597 bool isTexture2DArraySupported;
603 bool isBlendColorSupported;
604 bool isBlendEquationSupported;
605 bool isBlendEquationSeparateSupported;
606 bool isSGIXMinMaxSupported;
607 bool isLogicOpSupported;
609 void (GL_APIENTRY * glBlendColor) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
610 void (GL_APIENTRY * glBlendEquation)(GLenum mode);
611 void (GL_APIENTRY * glBlendEquationSeparate)(GLenum modeRGB, GLenum modeAlpha);
612 void (GL_APIENTRY * glBlendEquationi)(GLuint buf, GLenum mode);
613 void (GL_APIENTRY * glBlendEquationSeparatei)(GLuint buf, GLenum modeRGB, GLenum modeAlpha);
616 // glEnablei/glDisabeli
617 void (GL_APIENTRY * glEnablei) (GLenum capability, GLuint buf);
618 void (GL_APIENTRY * glDisablei) (GLenum capability, GLuint buf);
622 bool isStencilWrapSupported;
623 bool isStencilTwoSidedSupported;
624 bool isOpenGL20Supported;
625 bool isSeparateStencilSupported;
627 void (GL_APIENTRY * glActiveStencilFace) (GLenum face);
628 void (GL_APIENTRY * glStencilOpSeparate) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
629 void (GL_APIENTRY * glStencilMaskSeparate) (GLenum face, GLuint mask);
630 void (GL_APIENTRY * glStencilFuncSeparate) (GLenum face, GLenum func, GLint ref, GLuint mask);
631 void (GL_APIENTRY * glStencilFuncSeparateATI) (GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask);
635 void (GL_APIENTRY * glColorMaski)(GLuint buf, GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
639 bool isClampColorSupported;
640 void (GL_APIENTRY * glClampColor) (GLenum target, GLenum mode);
643 // PrimitiveRestartIndex
644 void (GL_APIENTRY * glPrimitiveRestartIndex) ( GLuint index );
648 bool isMultisampleSupported;
649 bool isMultisampleFilterHintSupported;
651 void (GL_APIENTRY * glSampleCoverage) (GLfloat value, GLboolean invert);
655 bool isPointParametersSupported;
656 bool isPointSpriteSupported;
657 bool isPointSpriteModeSupported;
658 bool isPointSpriteCoordOriginSupported;
660 void (GL_APIENTRY * glPointParameteri) (GLenum pname, GLint param);
661 void (GL_APIENTRY * glPointParameterf) (GLenum pname, GLfloat param);
662 void (GL_APIENTRY * glPointParameterfv) (GLenum pname, const GLfloat *params);
666 bool isFrameBufferObjectSupported;
667 bool isPackedDepthStencilSupported;
668 bool isMultisampledRenderToTextureSupported;
669 bool isInvalidateFramebufferSupported;
671 bool isRenderbufferMultisampleSupported() const { return glRenderbufferStorageMultisample != 0; }
672 bool isRenderbufferMultisampleCoverageSupported() const { return glRenderbufferStorageMultisampleCoverageNV != 0; }
674 void (GL_APIENTRY * glBindRenderbuffer) (GLenum, GLuint);
675 void (GL_APIENTRY * glDeleteRenderbuffers) (GLsizei n, const GLuint *renderbuffers);
676 void (GL_APIENTRY * glGenRenderbuffers) (GLsizei, GLuint *);
677 void (GL_APIENTRY * glRenderbufferStorage) (GLenum, GLenum, GLsizei, GLsizei);
678 void (GL_APIENTRY * glRenderbufferStorageMultisample) (GLenum, GLsizei, GLenum, GLsizei, GLsizei);
679 void (GL_APIENTRY * glRenderbufferStorageMultisampleCoverageNV) (GLenum, GLsizei, GLsizei, GLenum, GLsizei, GLsizei);
680 void (GL_APIENTRY * glBindFramebuffer) (GLenum, GLuint);
681 void (GL_APIENTRY * glDeleteFramebuffers) (GLsizei n, const GLuint *framebuffers);
682 void (GL_APIENTRY * glGenFramebuffers) (GLsizei, GLuint *);
683 GLenum (GL_APIENTRY * glCheckFramebufferStatus) (GLenum);
685 void (GL_APIENTRY * glFramebufferTexture1D) (GLenum, GLenum, GLenum, GLuint, GLint);
686 void (GL_APIENTRY * glFramebufferTexture2D) (GLenum, GLenum, GLenum, GLuint, GLint);
687 void (GL_APIENTRY * glFramebufferTexture2DMultisample) (GLenum, GLenum, GLenum, GLuint, GLint, GLsizei);
688 void (GL_APIENTRY * glFramebufferTexture3D) (GLenum, GLenum, GLenum, GLuint, GLint, GLint);
689 void (GL_APIENTRY * glFramebufferTexture) (GLenum, GLenum, GLint, GLint);
690 void (GL_APIENTRY * glFramebufferTextureLayer) (GLenum, GLenum, GLuint, GLint, GLint);
691 void (GL_APIENTRY * glFramebufferTextureFace)( GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face );
692 void (GL_APIENTRY * glFramebufferRenderbuffer) (GLenum, GLenum, GLenum, GLuint);
694 void (GL_APIENTRY * glGenerateMipmap) (GLenum);
695 void (GL_APIENTRY * glBlitFramebuffer) (GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum);
696 void (GL_APIENTRY * glInvalidateFramebuffer) (GLenum, GLsizei, const GLenum*); // GL_ARB_invalidate_subdata or GL 4.3 or GLES 3
697 void (GL_APIENTRY * glGetRenderbufferParameteriv) (GLenum, GLenum, GLint*);
699 //ARB_framebuffer_no_attachments
700 void (GL_APIENTRY * glFramebufferParameteri)(GLenum target, GLenum pname, GLint param);
701 void (GL_APIENTRY * glGetFramebufferParameteriv)(GLenum target, GLenum pname, GLint *params);
702 void (GL_APIENTRY * glNamedFramebufferParameteri)(GLuint fbo, GLenum pname, GLint param);
703 void (GL_APIENTRY * glGetNamedFramebufferParameteriv)(GLuint fbo, GLenum pname, GLint *params);
706 GLint(GL_APIENTRY* glGetSubroutineUniformLocation) (GLuint program, GLenum shadertype, const GLchar *name);
707 void (GL_APIENTRY * glGetActiveSubroutineUniformName) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufsize, GLsizei *length, GLchar *name);
708 void (GL_APIENTRY * glGetActiveSubroutineUniformiv) (GLuint program, GLenum shadertype, GLuint index, GLenum pname, GLint *values);
709 GLuint (GL_APIENTRY * glGetSubroutineIndex) (GLuint program, GLenum shadertype, const GLchar *name);
710 void (GL_APIENTRY * glGetActiveSubroutineName) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufsize, GLsizei *length, GLchar *name);
711 void (GL_APIENTRY * glGetProgramStageiv) (GLuint program, GLenum shadertype, GLenum pname, GLint *values);
712 void (GL_APIENTRY *glUniformSubroutinesuiv) (GLenum shadertype, GLsizei count,const GLuint * indices);
713 void (GL_APIENTRY * glGetUniformSubroutineuiv) (GLenum shadertype, GLint location, GLuint *params);
716 GLsync (GL_APIENTRY * glFenceSync) (GLenum condition, GLbitfield flags);
717 GLboolean (GL_APIENTRY * glIsSync) (GLsync sync);
718 void (GL_APIENTRY * glDeleteSync) (GLsync sync);
719 GLenum (GL_APIENTRY * glClientWaitSync) (GLsync sync, GLbitfield flags, GLuint64 timeout);
720 void (GL_APIENTRY * glWaitSync) (GLsync sync, GLbitfield flags, GLuint64 timeout);
721 void (GL_APIENTRY * glGetSynciv) (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values);
723 // Indirect Rendering
724 void (GL_APIENTRY * glDrawArraysIndirect) (GLenum mode, const void * indirect);
725 void (GL_APIENTRY * glMultiDrawArraysIndirect) (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride);
726 void (GL_APIENTRY * glDrawElementsIndirect) (GLenum mode, GLenum type, const void *indirect);
727 void (GL_APIENTRY * glMultiDrawElementsIndirect)(GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride);
729 // ARB_sparse_texture
730 void (GL_APIENTRY * glTexPageCommitment) (GLenum target, GLint level,GLint xoffset,GLint yoffset,GLint zoffset, GLsizei width, GLsizei height, GLsizei depth,GLboolean commit);
732 // Transform feedback
733 void (GL_APIENTRY * glBeginTransformFeedback) (GLenum primitiveMode);
734 void (GL_APIENTRY * glEndTransformFeedback) (void);
735 void (GL_APIENTRY * glTransformFeedbackVaryings) (GLuint program, GLsizei count, const GLchar *const*varyings, GLenum bufferMode);
736 void (GL_APIENTRY * glGetTransformFeedbackVarying) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name);
737 void (GL_APIENTRY * glBindTransformFeedback) (GLenum target, GLuint id);
738 void (GL_APIENTRY * glDeleteTransformFeedbacks) (GLsizei n, const GLuint *ids);
739 void (GL_APIENTRY * glGenTransformFeedbacks) (GLsizei n, GLuint *ids);
740 GLboolean (GL_APIENTRY * glIsTransformFeedback) (GLuint id);
741 void (GL_APIENTRY * glPauseTransformFeedback) (void);
742 void (GL_APIENTRY * glResumeTransformFeedback) (void);
743 void (GL_APIENTRY * glDrawTransformFeedback) (GLenum mode, GLuint id);
744 void (GL_APIENTRY * glDrawTransformFeedbackStream) (GLenum mode, GLuint id, GLuint stream);
745 void (GL_APIENTRY * glDrawTransformFeedbackInstanced) (GLenum mode, GLuint id, GLsizei instancecount);
746 void (GL_APIENTRY * glDrawTransformFeedbackStreamInstanced) (GLenum mode, GLuint id, GLuint stream, GLsizei instancecount);
747 void (GL_APIENTRY * glCreateTransformFeedbacks) (GLsizei n, GLuint *ids);
748 void (GL_APIENTRY * glTransformFeedbackBufferBase) (GLuint xfb, GLuint index, GLuint buffer);
749 void (GL_APIENTRY * glTransformFeedbackBufferRange) (GLuint xfb, GLuint index, GLuint buffer, GLintptr offset, GLsizei size);
750 void (GL_APIENTRY * glGetTransformFeedbackiv) (GLuint xfb, GLenum pname, GLint *param);
751 void (GL_APIENTRY * glGetTransformFeedbacki_v) (GLuint xfb, GLenum pname, GLuint index, GLint *param);
752 void (GL_APIENTRY * glGetTransformFeedbacki64_v) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
754 // Vertex Array Object
755 void (GL_APIENTRY * glDeleteVertexArrays) (GLsizei size,const GLuint *handles);
756 void (GL_APIENTRY * glGenVertexArrays) (GLsizei size, GLuint *handles);
757 GLboolean (GL_APIENTRY * glIsVertexArray) (GLuint handle);
758 void (GL_APIENTRY * glBindVertexArray) (GLuint handle);
760 // OpenGL 4.3 / ARB_vertex_attrib_binding
761 bool isVertexAttribBindingSupported;
762 void (GL_APIENTRY * glBindVertexBuffer)(GLuint bindingindex, GLuint buffer, GLintptr offset, GLintptr stride);
763 void (GL_APIENTRY * glVertexArrayVertexBuffer)(GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
764 void (GL_APIENTRY * glVertexAttribBinding)(GLuint attribindex, GLuint bindingindex);
765 void (GL_APIENTRY * glVertexArrayAttribBinding)(GLuint vaobj, GLuint attribindex, GLuint bindingindex);
767 void (GL_APIENTRY * glVertexAttribFormat)( GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
768 void (GL_APIENTRY * glVertexAttribIFormat)( GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
769 void (GL_APIENTRY * glVertexAttribLFormat)( GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
770 void (GL_APIENTRY * glVertexArrayAttribFormat)( GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
771 void (GL_APIENTRY * glVertexArrayAttribIFormat)( GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
772 void (GL_APIENTRY * glVertexArrayAttribLFormat)( GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
775 void (GL_APIENTRY * glMultiDrawArrays) (GLenum mode, const GLint * first, const GLsizei * count, GLsizei primcount);
776 void (GL_APIENTRY * glMultiDrawElements) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount);
777 void (GL_APIENTRY * glMultiDrawElementsBaseVertex) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount, const GLint *basevertex);
780 void (GL_APIENTRY * glDrawRangeElements) ( GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices );
781 void (GL_APIENTRY * glDrawElementsBaseVertex) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
782 void (GL_APIENTRY * glDrawElementsInstancedBaseVertex) (GLenum mode, GLsizei count, GLenum type, const void *indices,GLsizei primcount, GLint basevertex);
784 void (GL_APIENTRY * glDrawRangeElementsBaseVertex) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
785 void (GL_APIENTRY * glProvokingVertex) (GLenum mode);
787 void (GL_APIENTRY * glBeginConditionalRender) (GLuint id, GLenum mode);
788 void (GL_APIENTRY * glEndConditionalRender) (void);
791 void (GL_APIENTRY *glDrawArraysInstancedBaseInstance) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance);
792 void (GL_APIENTRY * glDrawElementsInstancedBaseInstance) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance);
793 void (GL_APIENTRY *glDrawElementsInstancedBaseVertexBaseInstance) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance);
797 bool isViewportArraySupported;
799 void (GL_APIENTRY * glViewportArrayv) (GLuint first, GLsizei count, const GLfloat * v);
800 void (GL_APIENTRY * glViewportIndexedf) (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h);
801 void (GL_APIENTRY * glViewportIndexedfv) (GLuint index, const GLfloat * v);
802 void (GL_APIENTRY * glScissorArrayv) (GLuint first, GLsizei count, const GLint * v);
803 void (GL_APIENTRY * glScissorIndexed) (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height);
804 void (GL_APIENTRY * glScissorIndexedv) (GLuint index, const GLint * v);
805 void (GL_APIENTRY * glDepthRangeArrayv) (GLuint first, GLsizei count, const GLdouble * v);
806 void (GL_APIENTRY * glDepthRangeIndexed) (GLuint index, GLdouble n, GLdouble f);
807 void (GL_APIENTRY * glDepthRangeIndexedf) (GLuint index, GLfloat n, GLfloat f);
808 void (GL_APIENTRY * glGetFloati_v) (GLenum target, GLuint index, GLfloat *data);
809 void (GL_APIENTRY * glGetDoublei_v) (GLenum target, GLuint index, GLdouble *data);
811 //introduced by other OpenGL extensions such as EXT_draw_buffers2
812 void (GL_APIENTRY * glGetIntegerIndexedvEXT) (GLenum target, GLuint index, int * v);
813 void (GL_APIENTRY * glEnableIndexedEXT) (GLenum target, GLuint index);
814 void (GL_APIENTRY * glDisableIndexedEXT) (GLenum target, GLuint index);
815 GLboolean (GL_APIENTRY * glIsEnabledIndexedEXT) (GLenum target, GLuint index);
817 void (GL_APIENTRY * glClientActiveTexture) (GLenum texture);
818 void (GL_APIENTRY * glActiveTexture) (GLenum texture);
819 void (GL_APIENTRY * glFogCoordPointer) (GLenum type, GLsizei stride, const GLvoid *pointer);
820 void (GL_APIENTRY * glSecondaryColorPointer) (GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
822 GLint glMaxTextureCoords;
823 GLint glMaxTextureUnits;
826 void (GL_APIENTRY * glObjectLabel) (GLenum identifier, GLuint name, GLsizei length, const GLchar* label);
828 /** convenience wrapper around glObjectLabel that calls glObjectLabel if it's supported and using std::string as a label parameter.*/
829 void debugObjectLabel(GLenum identifier, GLuint name, const std::string& label) const { if (glObjectLabel && !label.empty()) glObjectLabel(identifier, name, label.size(), label.c_str()); }
832 virtual ~GLExtensions();