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1	/* --c++-- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2	* Copyright (C) 2003-2005 3Dlabs Inc. Ltd.
3	* Copyright (C) 2004-2005 Nathan Cournia
4	* Copyright (C) 2007 Art Tevs
5	* Copyright (C) 2008 Zebra Imaging
6	* Copyright (C) 2010 VIRES Simulationstechnologie GmbH
7	*
8	* This application is open source and may be redistributed and/or modified
9	* freely and without restriction, both in commercial and non commercial
10	* applications, as long as this copyright notice is maintained.
11	*
12	* This application is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15	*/
16
17	/* file: include/osg/GL2Extensions
18	* author: Mike Weiblen 2008-01-02
19	* Holger Helmich 2010-10-21
20	*/
21
22	#ifndef OSG_GL2EXTENSIONS
23	#define OSG_GL2EXTENSIONS 1
24
25	#include <osg/Referenced>
26	#include <osg/GL>
27
28	#include <string>
29
30	#ifndef GL_SAMPLER_2D_ARRAY_EXT
31	#define GL_SAMPLER_1D_ARRAY_EXT 0x8DC0
32	#define GL_SAMPLER_2D_ARRAY_EXT 0x8DC1
33	#define GL_SAMPLER_1D_ARRAY_SHADOW_EXT 0x8DC3
34	#define GL_SAMPLER_2D_ARRAY_SHADOW_EXT 0x8DC4
35	#endif
36
37	#if !defined(GL_VERSION_2_0)
38	typedef char GLchar;
39	#endif
40
41	#if !defined(GL_VERSION_2_0)
42	#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642
43	#define GL_VERTEX_PROGRAM_TWO_SIDE 0x8643
44	#endif
45
46	#if !defined(GL_VERSION_2_0) && !defined(GL_ES_VERSION_2_0)
47	#define GL_VERSION_2_0 1
48	#define GL_BLEND_EQUATION_RGB GL_BLEND_EQUATION
49	#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622
50	#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623
51	#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624
52	#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625
53	#define GL_CURRENT_VERTEX_ATTRIB 0x8626
54	#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645
55	#define GL_STENCIL_BACK_FUNC 0x8800
56	#define GL_STENCIL_BACK_FAIL 0x8801
57	#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802
58	#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803
59	#define GL_MAX_DRAW_BUFFERS 0x8824
60	#define GL_DRAW_BUFFER0 0x8825
61	#define GL_DRAW_BUFFER1 0x8826
62	#define GL_DRAW_BUFFER2 0x8827
63	#define GL_DRAW_BUFFER3 0x8828
64	#define GL_DRAW_BUFFER4 0x8829
65	#define GL_DRAW_BUFFER5 0x882A
66	#define GL_DRAW_BUFFER6 0x882B
67	#define GL_DRAW_BUFFER7 0x882C
68	#define GL_DRAW_BUFFER8 0x882D
69	#define GL_DRAW_BUFFER9 0x882E
70	#define GL_DRAW_BUFFER10 0x882F
71	#define GL_DRAW_BUFFER11 0x8830
72	#define GL_DRAW_BUFFER12 0x8831
73	#define GL_DRAW_BUFFER13 0x8832
74	#define GL_DRAW_BUFFER14 0x8833
75	#define GL_DRAW_BUFFER15 0x8834
76	#define GL_BLEND_EQUATION_ALPHA 0x883D
77	#define GL_POINT_SPRITE 0x8861
78	#define GL_COORD_REPLACE 0x8862
79	#define GL_MAX_VERTEX_ATTRIBS 0x8869
80	#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
81	#define GL_MAX_TEXTURE_COORDS 0x8871
82	#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
83	#define GL_FRAGMENT_SHADER 0x8B30
84	#define GL_VERTEX_SHADER 0x8B31
85	#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49
86	#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A
87	#define GL_MAX_VARYING_FLOATS 0x8B4B
88	#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C
89	#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D
90	#define GL_SHADER_TYPE 0x8B4F
91	#define GL_FLOAT_VEC2 0x8B50
92	#define GL_FLOAT_VEC3 0x8B51
93	#define GL_FLOAT_VEC4 0x8B52
94	#define GL_INT_VEC2 0x8B53
95	#define GL_INT_VEC3 0x8B54
96	#define GL_INT_VEC4 0x8B55
97	#define GL_BOOL 0x8B56
98	#define GL_BOOL_VEC2 0x8B57
99	#define GL_BOOL_VEC3 0x8B58
100	#define GL_BOOL_VEC4 0x8B59
101	#define GL_FLOAT_MAT2 0x8B5A
102	#define GL_FLOAT_MAT3 0x8B5B
103	#define GL_FLOAT_MAT4 0x8B5C
104	#define GL_SAMPLER_1D 0x8B5D
105	#define GL_SAMPLER_2D 0x8B5E
106	#define GL_SAMPLER_3D 0x8B5F
107	#define GL_SAMPLER_CUBE 0x8B60
108	#define GL_SAMPLER_1D_SHADOW 0x8B61
109	#define GL_SAMPLER_2D_SHADOW 0x8B62
110	#define GL_DELETE_STATUS 0x8B80
111	#define GL_COMPILE_STATUS 0x8B81
112	#define GL_LINK_STATUS 0x8B82
113	#define GL_VALIDATE_STATUS 0x8B83
114	#define GL_INFO_LOG_LENGTH 0x8B84
115	#define GL_ATTACHED_SHADERS 0x8B85
116	#define GL_ACTIVE_UNIFORMS 0x8B86
117	#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87
118	#define GL_SHADER_SOURCE_LENGTH 0x8B88
119	#define GL_ACTIVE_ATTRIBUTES 0x8B89
120	#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A
121	#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B
122	#define GL_SHADING_LANGUAGE_VERSION 0x8B8C
123	#define GL_CURRENT_PROGRAM 0x8B8D
124	#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0
125	#define GL_LOWER_LEFT 0x8CA1
126	#define GL_UPPER_LEFT 0x8CA2
127	#define GL_STENCIL_BACK_REF 0x8CA3
128	#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4
129	#define GL_STENCIL_BACK_WRITEMASK 0x8CA5
130	#endif
131
132	#ifndef GL_VERSION_2_1
133	#define GL_VERSION_2_1 1
134	#define GL_CURRENT_RASTER_SECONDARY_COLOR 0x845F
135	#define GL_PIXEL_PACK_BUFFER 0x88EB
136	#define GL_PIXEL_UNPACK_BUFFER 0x88EC
137	#define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED
138	#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
139	#define GL_FLOAT_MAT2x3 0x8B65
140	#define GL_FLOAT_MAT2x4 0x8B66
141	#define GL_FLOAT_MAT3x2 0x8B67
142	#define GL_FLOAT_MAT3x4 0x8B68
143	#define GL_FLOAT_MAT4x2 0x8B69
144	#define GL_FLOAT_MAT4x3 0x8B6A
145	#define GL_SRGB 0x8C40
146	#define GL_SRGB8 0x8C41
147	#define GL_SRGB_ALPHA 0x8C42
148	#define GL_SRGB8_ALPHA8 0x8C43
149	#define GL_SLUMINANCE_ALPHA 0x8C44
150	#define GL_SLUMINANCE8_ALPHA8 0x8C45
151	#define GL_SLUMINANCE 0x8C46
152	#define GL_SLUMINANCE8 0x8C47
153	#define GL_COMPRESSED_SRGB 0x8C48
154	#define GL_COMPRESSED_SRGB_ALPHA 0x8C49
155	#define GL_COMPRESSED_SLUMINANCE 0x8C4A
156	#define GL_COMPRESSED_SLUMINANCE_ALPHA 0x8C4B
157	#endif
158
159	// EXT_geometry_shader4
160	#ifndef GL_GEOMETRY_SHADER_EXT
161	#define GL_GEOMETRY_SHADER_EXT 0x8DD9
162	#define GL_GEOMETRY_VERTICES_OUT_EXT 0x8DDA
163	#define GL_GEOMETRY_INPUT_TYPE_EXT 0x8DDB
164	#define GL_GEOMETRY_OUTPUT_TYPE_EXT 0x8DDC
165	#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT 0x8C29
166	#define GL_MAX_GEOMETRY_VARYING_COMPONENTS_EXT 0x8DDD
167	#define GL_MAX_VERTEX_VARYING_COMPONENTS_EXT 0x8DDE
168	#define GL_MAX_VARYING_COMPONENTS_EXT 0x8B4B
169	#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT 0x8DDF
170	#define GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT 0x8DE0
171	#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT 0x8DE1
172	#define GL_LINES_ADJACENCY_EXT 0x000A
173	#define GL_LINE_STRIP_ADJACENCY_EXT 0x000B
174	#define GL_TRIANGLES_ADJACENCY_EXT 0x000C
175	#define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0x000D
176	#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT 0x8DA8
177	#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_EXT 0x8DA9
178	#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT 0x8DA7
179	#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER_EXT 0x8CD4
180	#define GL_PROGRAM_POINT_SIZE_EXT 0x8642
181	#endif
182
183	// ARB_tesselation_shader
184	#ifndef GL_TESS_EVALUATION_SHADER
185	#define GL_PATCHES 0x000E
186	#define GL_PATCH_VERTICES 0x8E72
187	#define GL_PATCH_DEFAULT_INNER_LEVEL 0x8E73
188	#define GL_PATCH_DEFAULT_OUTER_LEVEL 0x8E74
189	#define GL_MAX_PATCH_VERTICES 0x8E7D
190	#define GL_MAX_TESS_GEN_LEVEL 0x8E7E
191	#define GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E7F
192	#define GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E80
193	#define GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS 0x8E81
194	#define GL_MAX_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS 0x8E82
195	#define GL_MAX_MAX_TESS_CONTROL_OUTPUT_COMPONENTS 0x8E83
196	#define GL_MAX_MAX_TESS_PATCH_COMPONENTS 0x8E84
197	#define GL_MAX_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS 0x8E85
198	#define GL_MAX_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS 0x8E86
199	#define GL_MAX_MAX_TESS_CONTROL_UNIFORM_BLOCKS 0x8E89
200	#define GL_MAX_MAX_TESS_EVALUATION_UNIFORM_BLOCKS 0x8E8A
201	#define GL_MAX_MAX_TESS_CONTROL_INPUT_COMPONENTS 0x886C
202	#define GL_MAX_MAX_TESS_EVALUATION_INPUT_COMPONENTS 0x886D
203	#define GL_MAX_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E1E
204	#define GL_MAX_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E1F
205	#define GL_TESS_EVALUATION_SHADER 0x8E87
206	#define GL_TESS_CONTROL_SHADER 0x8E88
207	#define GL_TESS_CONTROL_OUTPUT_VERTICES 0x8E75
208	#define GL_TESS_GEN_MODE 0x8E76
209	#define GL_TESS_GEN_SPACING 0x8E77
210	#define GL_TESS_GEN_VERTEX_ORDER 0x8E78
211	#define GL_TESS_GEN_POINT_MODE 0x8E79
212	#define GL_ISOLINES 0x8E7A
213	#define GL_FRACTIONAL_ODD 0x8E7B
214	#define GL_FRACTIONAL_EVEN 0x8E7C
215	#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_CONTROL_SHADER 0x84F0
216	#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_EVALUATION_SHADER 0x84F1
217	#endif
218
219	// EXT_gpu_shader4
220	#ifndef GL_INT_SAMPLER_2D_EXT
221	#define GL_SAMPLER_1D_ARRAY_EXT 0x8DC0
222	#define GL_SAMPLER_2D_ARRAY_EXT 0x8DC1
223	#define GL_SAMPLER_BUFFER_EXT 0x8DC2
224	#define GL_SAMPLER_1D_ARRAY_SHADOW_EXT 0x8DC3
225	#define GL_SAMPLER_2D_ARRAY_SHADOW_EXT 0x8DC4
226	#define GL_SAMPLER_CUBE_SHADOW_EXT 0x8DC5
227	#define GL_UNSIGNED_INT_VEC2_EXT 0x8DC6
228	#define GL_UNSIGNED_INT_VEC3_EXT 0x8DC7
229	#define GL_UNSIGNED_INT_VEC4_EXT 0x8DC8
230	#define GL_INT_SAMPLER_1D_EXT 0x8DC9
231	#define GL_INT_SAMPLER_2D_EXT 0x8DCA
232	#define GL_INT_SAMPLER_3D_EXT 0x8DCB
233	#define GL_INT_SAMPLER_CUBE_EXT 0x8DCC
234	#define GL_INT_SAMPLER_2D_RECT_EXT 0x8DCD
235	#define GL_INT_SAMPLER_1D_ARRAY_EXT 0x8DCE
236	#define GL_INT_SAMPLER_2D_ARRAY_EXT 0x8DCF
237	#define GL_INT_SAMPLER_BUFFER_EXT 0x8DD0
238	#define GL_UNSIGNED_INT_SAMPLER_1D_EXT 0x8DD1
239	#define GL_UNSIGNED_INT_SAMPLER_2D_EXT 0x8DD2
240	#define GL_UNSIGNED_INT_SAMPLER_3D_EXT 0x8DD3
241	#define GL_UNSIGNED_INT_SAMPLER_CUBE_EXT 0x8DD4
242	#define GL_UNSIGNED_INT_SAMPLER_2D_RECT_EXT 0x8DD5
243	#define GL_UNSIGNED_INT_SAMPLER_1D_ARRAY_EXT 0x8DD6
244	#define GL_UNSIGNED_INT_SAMPLER_2D_ARRAY_EXT 0x8DD7
245	#define GL_UNSIGNED_INT_SAMPLER_BUFFER_EXT 0x8DD8
246	#define GL_MIN_PROGRAM_TEXEL_OFFSET_EXT 0x8904
247	#define GL_MAX_PROGRAM_TEXEL_OFFSET_EXT 0x8905
248	#endif
249
250	// ARB_uniform_buffer_object
251	#ifndef GL_UNIFORM_BUFFER
252	#define GL_UNIFORM_BUFFER 0x8A11
253	#define GL_UNIFORM_BUFFER_BINDING 0x8A28
254	#define GL_UNIFORM_BUFFER_START 0x8A29
255	#define GL_UNIFORM_BUFFER_SIZE 0x8A2A
256	#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B
257	#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C
258	#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D
259	#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E
260	#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F
261	#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30
262	#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31
263	#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32
264	#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33
265	#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34
266	#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35
267	#define GL_ACTIVE_UNIFORM_BLOCKS 0x8A36
268	#define GL_UNIFORM_TYPE 0x8A37
269	#define GL_UNIFORM_SIZE 0x8A38
270	#define GL_UNIFORM_NAME_LENGTH 0x8A39
271	#define GL_UNIFORM_BLOCK_INDEX 0x8A3A
272	#define GL_UNIFORM_OFFSET 0x8A3B
273	#define GL_UNIFORM_ARRAY_STRIDE 0x8A3C
274	#define GL_UNIFORM_MATRIX_STRIDE 0x8A3D
275	#define GL_UNIFORM_IS_ROW_MAJOR 0x8A3E
276	#define GL_UNIFORM_BLOCK_BINDING 0x8A3F
277	#define GL_UNIFORM_BLOCK_DATA_SIZE 0x8A40
278	#define GL_UNIFORM_BLOCK_NAME_LENGTH 0x8A41
279	#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42
280	#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43
281	#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44
282	#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45
283	#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46
284	#define GL_INVALID_INDEX 0xFFFFFFFFu
285	#endif
286
287	//ARB_get_program_binary
288	#ifndef GL_PROGRAM_BINARY_RETRIEVABLE_HINT
289	#define GL_PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257
290	#define GL_PROGRAM_BINARY_LENGTH 0x8741
291	#define GL_NUM_PROGRAM_BINARY_FORMATS 0x87FE
292	#define GL_PROGRAM_BINARY_FORMATS 0x87FF
293	#endif
294
295	namespace osg {
296
297	class OSG_EXPORT GL2Extensions : public osg::Referenced
298	{
299	public:
300	GL2Extensions(unsigned int contextID);
301	GL2Extensions(const GL2Extensions& rhs);
302
303	void lowestCommonDenominator(const GL2Extensions& rhs);
304
305	void setupGL2Extensions(unsigned int contextID);
306
307	/** Does the GL driver support OpenGL Shading Language? */
308	bool isGlslSupported() const;
309
310	float getGlVersion() const { return _glVersion; }
311	float getLanguageVersion() const { return _glslLanguageVersion; }
312
313	void setShaderObjectsSupported(bool flag) { _isShaderObjectsSupported = flag; }
314	bool isShaderObjectsSupported() const { return _isShaderObjectsSupported; }
315
316	void setVertexShaderSupported(bool flag) { _isVertexShaderSupported = flag; }
317	bool isVertexShaderSupported() const { return _isVertexShaderSupported; }
318
319	void setFragmentShaderSupported(bool flag) { _isFragmentShaderSupported = flag; }
320	bool isFragmentShaderSupported() const { return _isFragmentShaderSupported; }
321
322	void setLanguage100Supported(bool flag) { _isLanguage100Supported = flag; }
323	bool isLanguage100Supported() const { return _isLanguage100Supported; }
324
325	void setGeometryShader4Supported(bool flag) { _isGeometryShader4Supported = flag; }
326	bool isGeometryShader4Supported() const { return _isGeometryShader4Supported; }
327
328	void setTessellationShadersSupported(bool flag) { _areTessellationShadersSupported = flag; }
329	bool areTessellationShadersSupported() const { return _areTessellationShadersSupported; }
330
331	void setGpuShader4Supported(bool flag) { _isGpuShader4Supported = flag; }
332	bool isGpuShader4Supported() const { return _isGpuShader4Supported; }
333
334	void setUniformBufferObjectSupported(bool flag) { _isUniformBufferObjectSupported = flag; }
335	bool isUniformBufferObjectSupported() {return _isUniformBufferObjectSupported; }
336
337	void setGetProgramBinarySupported(bool flag) { _isGetProgramBinarySupported = flag; }
338	bool isGetProgramBinarySupported() {return _isGetProgramBinarySupported; }
339
340	/** Function to call to get the extension of a specified context.
341	* If the Exentsion object for that context has not yet been created then
342	* and the 'createIfNotInitalized' flag been set to false then returns NULL.
343	* If 'createIfNotInitalized' is true then the Extensions object is
344	* automatically created. However, in this case the extension object
345	* only be created with the graphics context associated with ContextID..*/
346	static GL2Extensions* Get(unsigned int contextID,bool createIfNotInitalized);
347
348	/** allows users to override the extensions across graphics contexts.
349	* typically used when you have different extensions supported across graphics pipes
350	* but need to ensure that they all use the same low common denominator extensions.*/
351	static void Set(unsigned int contextID, GL2Extensions* extensions);
352
353
354	void glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha) const;
355	void glDrawBuffers(GLsizei n, const GLenum *bufs) const;
356	void glStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) const;
357	void glStencilFuncSeparate(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask) const;
358	void glStencilMaskSeparate(GLenum face, GLuint mask) const;
359	void glAttachShader(GLuint program, GLuint shader) const;
360	void glBindAttribLocation(GLuint program, GLuint index, const GLchar *name) const;
361	void glCompileShader(GLuint shader) const;
362	GLuint glCreateProgram(void) const;
363	GLuint glCreateShader(GLenum type) const;
364	void glDeleteProgram(GLuint program) const;
365	void glDeleteShader(GLuint shader) const;
366	void glDetachShader(GLuint program, GLuint shader) const;
367	void glDisableVertexAttribArray(GLuint index) const;
368	void glEnableVertexAttribArray(GLuint index) const;
369	void glGetActiveAttrib(GLuint program, GLuint index, GLsizei bufSize, GLsizei length, GLint size, GLenum type, GLchar name) const;
370	void glGetActiveUniform(GLuint program, GLuint index, GLsizei bufSize, GLsizei length, GLint size, GLenum type, GLchar name) const;
371	void glGetAttachedShaders(GLuint program, GLsizei maxCount, GLsizei count, GLuint obj) const;
372	GLint glGetAttribLocation(GLuint program, const GLchar *name) const;
373	void glGetProgramiv(GLuint program, GLenum pname, GLint *params) const;
374	void glGetProgramInfoLog(GLuint program, GLsizei bufSize, GLsizei length, GLchar infoLog) const;
375	void glGetShaderiv(GLuint shader, GLenum pname, GLint *params) const;
376	void glGetShaderInfoLog(GLuint shader, GLsizei bufSize, GLsizei length, GLchar infoLog) const;
377	void glGetShaderSource(GLuint shader, GLsizei bufSize, GLsizei length, GLchar source) const;
378	GLint glGetUniformLocation(GLuint program, const GLchar *name) const;
379	void glGetUniformfv(GLuint program, GLint location, GLfloat *params) const;
380	void glGetUniformiv(GLuint program, GLint location, GLint *params) const;
381	void glGetVertexAttribdv(GLuint index, GLenum pname, GLdouble *params) const;
382	void glGetVertexAttribfv(GLuint index, GLenum pname, GLfloat *params) const;
383	void glGetVertexAttribiv(GLuint index, GLenum pname, GLint *params) const;
384	void glGetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid* *pointer) const;
385	GLboolean glIsProgram(GLuint program) const;
386	GLboolean glIsShader(GLuint shader) const;
387	void glLinkProgram(GLuint program) const;
388	void glShaderSource(GLuint shader, GLsizei count, const GLchar* string, const GLint length) const;
389	void glUseProgram(GLuint program) const;
390	void glUniform1f(GLint location, GLfloat v0) const;
391	void glUniform2f(GLint location, GLfloat v0, GLfloat v1) const;
392	void glUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) const;
393	void glUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) const;
394	void glUniform1i(GLint location, GLint v0) const;
395	void glUniform2i(GLint location, GLint v0, GLint v1) const;
396	void glUniform3i(GLint location, GLint v0, GLint v1, GLint v2) const;
397	void glUniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) const;
398	void glUniform1fv(GLint location, GLsizei count, const GLfloat *value) const;
399	void glUniform2fv(GLint location, GLsizei count, const GLfloat *value) const;
400	void glUniform3fv(GLint location, GLsizei count, const GLfloat *value) const;
401	void glUniform4fv(GLint location, GLsizei count, const GLfloat *value) const;
402	void glUniform1iv(GLint location, GLsizei count, const GLint *value) const;
403	void glUniform2iv(GLint location, GLsizei count, const GLint *value) const;
404	void glUniform3iv(GLint location, GLsizei count, const GLint *value) const;
405	void glUniform4iv(GLint location, GLsizei count, const GLint *value) const;
406	void glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
407	void glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
408	void glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
409	void glValidateProgram(GLuint program) const;
410	void glVertexAttrib1d(GLuint index, GLdouble x) const;
411	void glVertexAttrib1dv(GLuint index, const GLdouble *v) const;
412	void glVertexAttrib1f(GLuint index, GLfloat x) const;
413	void glVertexAttrib1fv(GLuint index, const GLfloat *v) const;
414	void glVertexAttrib1s(GLuint index, GLshort x) const;
415	void glVertexAttrib1sv(GLuint index, const GLshort *v) const;
416	void glVertexAttrib2d(GLuint index, GLdouble x, GLdouble y) const;
417	void glVertexAttrib2dv(GLuint index, const GLdouble *v) const;
418	void glVertexAttrib2f(GLuint index, GLfloat x, GLfloat y) const;
419	void glVertexAttrib2fv(GLuint index, const GLfloat *v) const;
420	void glVertexAttrib2s(GLuint index, GLshort x, GLshort y) const;
421	void glVertexAttrib2sv(GLuint index, const GLshort *v) const;
422	void glVertexAttrib3d(GLuint index, GLdouble x, GLdouble y, GLdouble z) const;
423	void glVertexAttrib3dv(GLuint index, const GLdouble *v) const;
424	void glVertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z) const;
425	void glVertexAttrib3fv(GLuint index, const GLfloat *v) const;
426	void glVertexAttrib3s(GLuint index, GLshort x, GLshort y, GLshort z) const;
427	void glVertexAttrib3sv(GLuint index, const GLshort *v) const;
428	void glVertexAttrib4Nbv(GLuint index, const GLbyte *v) const;
429	void glVertexAttrib4Niv(GLuint index, const GLint *v) const;
430	void glVertexAttrib4Nsv(GLuint index, const GLshort *v) const;
431	void glVertexAttrib4Nub(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w) const;
432	void glVertexAttrib4Nubv(GLuint index, const GLubyte *v) const;
433	void glVertexAttrib4Nuiv(GLuint index, const GLuint *v) const;
434	void glVertexAttrib4Nusv(GLuint index, const GLushort *v) const;
435	void glVertexAttrib4bv(GLuint index, const GLbyte *v) const;
436	void glVertexAttrib4d(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w) const;
437	void glVertexAttrib4dv(GLuint index, const GLdouble *v) const;
438	void glVertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) const;
439	void glVertexAttrib4fv(GLuint index, const GLfloat *v) const;
440	void glVertexAttrib4iv(GLuint index, const GLint *v) const;
441	void glVertexAttrib4s(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w) const;
442	void glVertexAttrib4sv(GLuint index, const GLshort *v) const;
443	void glVertexAttrib4ubv(GLuint index, const GLubyte *v) const;
444	void glVertexAttrib4uiv(GLuint index, const GLuint *v) const;
445	void glVertexAttrib4usv(GLuint index, const GLushort *v) const;
446	void glVertexAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer) const;
447
448	// C++-friendly convenience wrapper methods
449	GLuint getCurrentProgram() const;
450	bool getProgramInfoLog( GLuint program, std::string& result ) const;
451	bool getShaderInfoLog( GLuint shader, std::string& result ) const;
452	bool getAttribLocation( const char* attribName, GLuint& slot ) const;
453	bool getFragDataLocation( const char* fragDataName, GLuint& slot) const;
454
455	// GL 2.1
456	void glUniformMatrix2x3fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
457	void glUniformMatrix3x2fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
458	void glUniformMatrix2x4fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
459	void glUniformMatrix4x2fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
460	void glUniformMatrix3x4fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
461	void glUniformMatrix4x3fv( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value ) const;
462
463	// EXT_geometry_shader4
464	void glProgramParameteri( GLuint program, GLenum pname, GLint value ) const;
465	void glFramebufferTexture( GLenum target, GLenum attachment, GLuint texture, GLint level ) const;
466	void glFramebufferTextureLayer( GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer ) const;
467	void glFramebufferTextureFace( GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face ) const;
468
469	// ARB_tessellation_shader
470	void glPatchParameteri(GLenum pname, GLint value) const;
471	void glPatchParameterfv(GLenum pname, const GLfloat *values) const;
472
473	// EXT_gpu_shader4
474	void glGetUniformuiv( GLuint program, GLint location, GLuint *params ) const;
475	void glBindFragDataLocation( GLuint program, GLuint color, const GLchar *name ) const;
476	GLint glGetFragDataLocation( GLuint program, const GLchar *name ) const;
477	void glUniform1ui( GLint location, GLuint v0 ) const;
478	void glUniform2ui( GLint location, GLuint v0, GLuint v1 ) const;
479	void glUniform3ui( GLint location, GLuint v0, GLuint v1, GLuint v2 ) const;
480	void glUniform4ui( GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3 ) const;
481	void glUniform1uiv( GLint location, GLsizei count, const GLuint *value ) const;
482	void glUniform2uiv( GLint location, GLsizei count, const GLuint *value ) const;
483	void glUniform3uiv( GLint location, GLsizei count, const GLuint *value ) const;
484	void glUniform4uiv( GLint location, GLsizei count, const GLuint *value ) const;
485
486	// ARB_uniform_buffer_object
487	void glGetUniformIndices(GLuint program, GLsizei uniformCount, const GLchar* uniformNames, GLuint uniformIndices) const;
488	void glGetActiveUniformsiv(GLuint program, GLsizei uniformCount, const GLuint uniformIndices, GLenum pname, GLint params) const;
489	void glGetActiveUniformName(GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei length, GLchar uniformName) const;
490	GLuint glGetUniformBlockIndex(GLuint program, const GLchar *uniformBlockName) const;
491	void glGetActiveUniformBlockiv(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params) const;
492	void glGetActiveUniformBlockName(GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei length, GLchar uniformBlockName) const;
493	void glUniformBlockBinding(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding) const;
494
495	// ARB_get_program_binary
496	void glGetProgramBinary(GLuint program, GLsizei bufSize, GLsizei length, GLenum binaryFormat, GLvoid *binary) const;
497	void glProgramBinary(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length) const;
498
499	protected:
500	~GL2Extensions() {}
501
502	float _glVersion;
503	float _glslLanguageVersion;
504
505	bool _isShaderObjectsSupported;
506	bool _isVertexShaderSupported;
507	bool _isFragmentShaderSupported;
508	bool _isLanguage100Supported;
509	bool _isGeometryShader4Supported;
510	bool _areTessellationShadersSupported;
511	bool _isGpuShader4Supported;
512	bool _isUniformBufferObjectSupported;
513	bool _isGetProgramBinarySupported;
514
515	typedef void (GL_APIENTRY * BlendEquationSeparateProc)(GLenum modeRGB, GLenum modeAlpha);
516	typedef void (GL_APIENTRY * DrawBuffersProc)(GLsizei n, const GLenum *bufs);
517	typedef void (GL_APIENTRY * StencilOpSeparateProc)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
518	typedef void (GL_APIENTRY * StencilFuncSeparateProc)(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask);
519	typedef void (GL_APIENTRY * StencilMaskSeparateProc)(GLenum face, GLuint mask);
520	typedef void (GL_APIENTRY * AttachShaderProc)(GLuint program, GLuint shader);
521	typedef void (GL_APIENTRY * BindAttribLocationProc)(GLuint program, GLuint index, const GLchar *name);
522	typedef void (GL_APIENTRY * CompileShaderProc)(GLuint shader);
523	typedef GLuint (GL_APIENTRY * CreateProgramProc)(void);
524	typedef GLuint (GL_APIENTRY * CreateShaderProc)(GLenum type);
525	typedef void (GL_APIENTRY * DeleteProgramProc)(GLuint program);
526	typedef void (GL_APIENTRY * DeleteObjectARBProc)(GLuint program);
527	typedef void (GL_APIENTRY * DeleteShaderProc)(GLuint shader);
528	typedef void (GL_APIENTRY * DetachShaderProc)(GLuint program, GLuint shader);
529	typedef void (GL_APIENTRY * DisableVertexAttribArrayProc)(GLuint index);
530	typedef void (GL_APIENTRY * EnableVertexAttribArrayProc)(GLuint index);
531	typedef void (GL_APIENTRY * GetActiveAttribProc)(GLuint program, GLuint index, GLsizei bufSize, GLsizei length, GLint size, GLenum type, GLchar name);
532	typedef void (GL_APIENTRY * GetActiveUniformProc)(GLuint program, GLuint index, GLsizei bufSize, GLsizei length, GLint size, GLenum type, GLchar name);
533	typedef void (GL_APIENTRY * GetAttachedShadersProc)(GLuint program, GLsizei maxCount, GLsizei count, GLuint obj);
534	typedef GLint (GL_APIENTRY * GetAttribLocationProc)(GLuint program, const GLchar *name);
535	typedef void (GL_APIENTRY * GetProgramivProc)(GLuint program, GLenum pname, GLint *params);
536	typedef void (GL_APIENTRY * GetObjectParameterivARBProc)(GLuint program, GLenum pname, GLint *params);
537	typedef void (GL_APIENTRY * GetProgramInfoLogProc)(GLuint program, GLsizei bufSize, GLsizei length, GLchar infoLog);
538	typedef void (GL_APIENTRY * GetInfoLogARBProc)(GLuint program, GLsizei bufSize, GLsizei length, GLchar infoLog);
539	typedef void (GL_APIENTRY * GetShaderivProc)(GLuint shader, GLenum pname, GLint *params);
540	typedef void (GL_APIENTRY * GetShaderInfoLogProc)(GLuint shader, GLsizei bufSize, GLsizei length, GLchar infoLog);
541	typedef void (GL_APIENTRY * GetShaderSourceProc)(GLuint shader, GLsizei bufSize, GLsizei length, GLchar source);
542	typedef GLint (GL_APIENTRY * GetUniformLocationProc)(GLuint program, const GLchar *name);
543	typedef void (GL_APIENTRY * GetUniformfvProc)(GLuint program, GLint location, GLfloat *params);
544	typedef void (GL_APIENTRY * GetUniformivProc)(GLuint program, GLint location, GLint *params);
545	typedef void (GL_APIENTRY * GetVertexAttribdvProc)(GLuint index, GLenum pname, GLdouble *params);
546	typedef void (GL_APIENTRY * GetVertexAttribfvProc)(GLuint index, GLenum pname, GLfloat *params);
547	typedef void (GL_APIENTRY * GetVertexAttribivProc)(GLuint index, GLenum pname, GLint *params);
548	typedef void (GL_APIENTRY * GetVertexAttribPointervProc)(GLuint index, GLenum pname, GLvoid* *pointer);
549	typedef GLboolean (GL_APIENTRY * IsProgramProc)(GLuint program);
550	typedef GLboolean (GL_APIENTRY * IsShaderProc)(GLuint shader);
551	typedef void (GL_APIENTRY * LinkProgramProc)(GLuint program);
552	typedef void (GL_APIENTRY * ShaderSourceProc)(GLuint shader, GLsizei count, const GLchar* string, const GLint length);
553	typedef void (GL_APIENTRY * UseProgramProc)(GLuint program);
554	typedef void (GL_APIENTRY * Uniform1fProc)(GLint location, GLfloat v0);
555	typedef void (GL_APIENTRY * Uniform2fProc)(GLint location, GLfloat v0, GLfloat v1);
556	typedef void (GL_APIENTRY * Uniform3fProc)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
557	typedef void (GL_APIENTRY * Uniform4fProc)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
558	typedef void (GL_APIENTRY * Uniform1iProc)(GLint location, GLint v0);
559	typedef void (GL_APIENTRY * Uniform2iProc)(GLint location, GLint v0, GLint v1);
560	typedef void (GL_APIENTRY * Uniform3iProc)(GLint location, GLint v0, GLint v1, GLint v2);
561	typedef void (GL_APIENTRY * Uniform4iProc)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
562	typedef void (GL_APIENTRY * Uniform1fvProc)(GLint location, GLsizei count, const GLfloat *value);
563	typedef void (GL_APIENTRY * Uniform2fvProc)(GLint location, GLsizei count, const GLfloat *value);
564	typedef void (GL_APIENTRY * Uniform3fvProc)(GLint location, GLsizei count, const GLfloat *value);
565	typedef void (GL_APIENTRY * Uniform4fvProc)(GLint location, GLsizei count, const GLfloat *value);
566	typedef void (GL_APIENTRY * Uniform1ivProc)(GLint location, GLsizei count, const GLint *value);
567	typedef void (GL_APIENTRY * Uniform2ivProc)(GLint location, GLsizei count, const GLint *value);
568	typedef void (GL_APIENTRY * Uniform3ivProc)(GLint location, GLsizei count, const GLint *value);
569	typedef void (GL_APIENTRY * Uniform4ivProc)(GLint location, GLsizei count, const GLint *value);
570	typedef void (GL_APIENTRY * UniformMatrix2fvProc)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
571	typedef void (GL_APIENTRY * UniformMatrix3fvProc)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
572	typedef void (GL_APIENTRY * UniformMatrix4fvProc)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
573	typedef void (GL_APIENTRY * ValidateProgramProc)(GLuint program);
574	typedef void (GL_APIENTRY * VertexAttrib1dProc)(GLuint index, GLdouble x);
575	typedef void (GL_APIENTRY * VertexAttrib1dvProc)(GLuint index, const GLdouble *v);
576	typedef void (GL_APIENTRY * VertexAttrib1fProc)(GLuint index, GLfloat x);
577	typedef void (GL_APIENTRY * VertexAttrib1fvProc)(GLuint index, const GLfloat *v);
578	typedef void (GL_APIENTRY * VertexAttrib1sProc)(GLuint index, GLshort x);
579	typedef void (GL_APIENTRY * VertexAttrib1svProc)(GLuint index, const GLshort *v);
580	typedef void (GL_APIENTRY * VertexAttrib2dProc)(GLuint index, GLdouble x, GLdouble y);
581	typedef void (GL_APIENTRY * VertexAttrib2dvProc)(GLuint index, const GLdouble *v);
582	typedef void (GL_APIENTRY * VertexAttrib2fProc)(GLuint index, GLfloat x, GLfloat y);
583	typedef void (GL_APIENTRY * VertexAttrib2fvProc)(GLuint index, const GLfloat *v);
584	typedef void (GL_APIENTRY * VertexAttrib2sProc)(GLuint index, GLshort x, GLshort y);
585	typedef void (GL_APIENTRY * VertexAttrib2svProc)(GLuint index, const GLshort *v);
586	typedef void (GL_APIENTRY * VertexAttrib3dProc)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
587	typedef void (GL_APIENTRY * VertexAttrib3dvProc)(GLuint index, const GLdouble *v);
588	typedef void (GL_APIENTRY * VertexAttrib3fProc)(GLuint index, GLfloat x, GLfloat y, GLfloat z);
589	typedef void (GL_APIENTRY * VertexAttrib3fvProc)(GLuint index, const GLfloat *v);
590	typedef void (GL_APIENTRY * VertexAttrib3sProc)(GLuint index, GLshort x, GLshort y, GLshort z);
591	typedef void (GL_APIENTRY * VertexAttrib3svProc)(GLuint index, const GLshort *v);
592	typedef void (GL_APIENTRY * VertexAttrib4NbvProc)(GLuint index, const GLbyte *v);
593	typedef void (GL_APIENTRY * VertexAttrib4NivProc)(GLuint index, const GLint *v);
594	typedef void (GL_APIENTRY * VertexAttrib4NsvProc)(GLuint index, const GLshort *v);
595	typedef void (GL_APIENTRY * VertexAttrib4NubProc)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
596	typedef void (GL_APIENTRY * VertexAttrib4NubvProc)(GLuint index, const GLubyte *v);
597	typedef void (GL_APIENTRY * VertexAttrib4NuivProc)(GLuint index, const GLuint *v);
598	typedef void (GL_APIENTRY * VertexAttrib4NusvProc)(GLuint index, const GLushort *v);
599	typedef void (GL_APIENTRY * VertexAttrib4bvProc)(GLuint index, const GLbyte *v);
600	typedef void (GL_APIENTRY * VertexAttrib4dProc)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
601	typedef void (GL_APIENTRY * VertexAttrib4dvProc)(GLuint index, const GLdouble *v);
602	typedef void (GL_APIENTRY * VertexAttrib4fProc)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
603	typedef void (GL_APIENTRY * VertexAttrib4fvProc)(GLuint index, const GLfloat *v);
604	typedef void (GL_APIENTRY * VertexAttrib4ivProc)(GLuint index, const GLint *v);
605	typedef void (GL_APIENTRY * VertexAttrib4sProc)(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
606	typedef void (GL_APIENTRY * VertexAttrib4svProc)(GLuint index, const GLshort *v);
607	typedef void (GL_APIENTRY * VertexAttrib4ubvProc)(GLuint index, const GLubyte *v);
608	typedef void (GL_APIENTRY * VertexAttrib4uivProc)(GLuint index, const GLuint *v);
609	typedef void (GL_APIENTRY * VertexAttrib4usvProc)(GLuint index, const GLushort *v);
610	typedef void (GL_APIENTRY * VertexAttribPointerProc)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
611	typedef void (GL_APIENTRY * UniformMatrix2x3fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
612	typedef void (GL_APIENTRY * UniformMatrix3x2fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
613	typedef void (GL_APIENTRY * UniformMatrix2x4fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
614	typedef void (GL_APIENTRY * UniformMatrix4x2fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
615	typedef void (GL_APIENTRY * UniformMatrix3x4fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
616	typedef void (GL_APIENTRY * UniformMatrix4x3fvProc)( GLint location, GLsizei count, GLboolean transpose, const GLfloat* value );
617	typedef void (GL_APIENTRY * ProgramParameteriProc)( GLuint program, GLenum pname, GLint value );
618	typedef void (GL_APIENTRY * FramebufferTextureProc)( GLenum target, GLenum attachment, GLuint texture, GLint level );
619	typedef void (GL_APIENTRY * FramebufferTextureLayerProc)( GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer );
620	typedef void (GL_APIENTRY * FramebufferTextureFaceProc)( GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face );
621	typedef void (GL_APIENTRY * PatchParameteriProc)( GLenum pname, GLint value );
622	typedef void (GL_APIENTRY * PatchParameterfvProc)( GLenum pname, const GLfloat* values );
623	typedef void (GL_APIENTRY * GetUniformuivProc)( GLuint program, GLint location, GLuint* params );
624	typedef void (GL_APIENTRY * BindFragDataLocationProc)( GLuint program, GLuint color, const GLchar* name );
625	typedef GLint (GL_APIENTRY * GetFragDataLocationProc)( GLuint program, const GLchar* name );
626	typedef void (GL_APIENTRY * Uniform1uiProc)( GLint location, GLuint v0 );
627	typedef void (GL_APIENTRY * Uniform2uiProc)( GLint location, GLuint v0, GLuint v1 );
628	typedef void (GL_APIENTRY * Uniform3uiProc)( GLint location, GLuint v0, GLuint v1, GLuint v2 );
629	typedef void (GL_APIENTRY * Uniform4uiProc)( GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3 );
630	typedef void (GL_APIENTRY * Uniform1uivProc)( GLint location, GLsizei count, const GLuint *value );
631	typedef void (GL_APIENTRY * Uniform2uivProc)( GLint location, GLsizei count, const GLuint *value );
632	typedef void (GL_APIENTRY * Uniform3uivProc)( GLint location, GLsizei count, const GLuint *value );
633	typedef void (GL_APIENTRY * Uniform4uivProc)( GLint location, GLsizei count, const GLuint *value );
634	typedef GLuint (GL_APIENTRY * GetHandleProc) (GLenum pname);
635	typedef void (GL_APIENTRY * GetUniformIndicesProc)(GLuint program, GLsizei uniformCount, const GLchar* uniformNames, GLuint uniformIndices);
636	typedef void (GL_APIENTRY * GetActiveUniformsivProc)(GLuint program, GLsizei uniformCount, const GLuint uniformIndices, GLenum pname, GLint params);
637	typedef void (GL_APIENTRY * GetActiveUniformNameProc)(GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei length, GLchar uniformName);
638	typedef GLuint (GL_APIENTRY * GetUniformBlockIndexProc)(GLuint program, const GLchar *uniformBlockName);
639	typedef void (GL_APIENTRY * GetActiveUniformBlockivProc)(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params);
640	typedef void (GL_APIENTRY * GetActiveUniformBlockNameProc)(GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei length, GLchar uniformBlockName);
641	typedef void (GL_APIENTRY * UniformBlockBindingProc)(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
642	typedef void (GL_APIENTRY * GetProgramBinaryProc)(GLuint program, GLsizei bufSize, GLsizei length, GLenum binaryFormat, GLvoid *binary);
643	typedef void (GL_APIENTRY * ProgramBinaryProc)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length);
644
645	BlendEquationSeparateProc _glBlendEquationSeparate;
646	DrawBuffersProc _glDrawBuffers;
647	StencilOpSeparateProc _glStencilOpSeparate;
648	StencilFuncSeparateProc _glStencilFuncSeparate;
649	StencilMaskSeparateProc _glStencilMaskSeparate;
650	AttachShaderProc _glAttachShader;
651	BindAttribLocationProc _glBindAttribLocation;
652	CompileShaderProc _glCompileShader;
653	CreateProgramProc _glCreateProgram;
654	CreateShaderProc _glCreateShader;
655	DeleteProgramProc _glDeleteProgram;
656	DeleteShaderProc _glDeleteShader;
657	DetachShaderProc _glDetachShader;
658	DisableVertexAttribArrayProc _glDisableVertexAttribArray;
659	EnableVertexAttribArrayProc _glEnableVertexAttribArray;
660	GetActiveAttribProc _glGetActiveAttrib;
661	GetActiveUniformProc _glGetActiveUniform;
662	GetAttachedShadersProc _glGetAttachedShaders;
663	GetAttribLocationProc _glGetAttribLocation;
664	GetProgramivProc _glGetProgramiv;
665	GetProgramInfoLogProc _glGetProgramInfoLog;
666	GetShaderivProc _glGetShaderiv;
667	GetShaderInfoLogProc _glGetShaderInfoLog;
668	GetShaderSourceProc _glGetShaderSource;
669	GetUniformLocationProc _glGetUniformLocation;
670	GetUniformfvProc _glGetUniformfv;
671	GetUniformivProc _glGetUniformiv;
672	GetVertexAttribdvProc _glGetVertexAttribdv;
673	GetVertexAttribfvProc _glGetVertexAttribfv;
674	GetVertexAttribivProc _glGetVertexAttribiv;
675	GetVertexAttribPointervProc _glGetVertexAttribPointerv;
676	IsProgramProc _glIsProgram;
677	IsShaderProc _glIsShader;
678	LinkProgramProc _glLinkProgram;
679	ShaderSourceProc _glShaderSource;
680	UseProgramProc _glUseProgram;
681	Uniform1fProc _glUniform1f;
682	Uniform2fProc _glUniform2f;
683	Uniform3fProc _glUniform3f;
684	Uniform4fProc _glUniform4f;
685	Uniform1iProc _glUniform1i;
686	Uniform2iProc _glUniform2i;
687	Uniform3iProc _glUniform3i;
688	Uniform4iProc _glUniform4i;
689	Uniform1fvProc _glUniform1fv;
690	Uniform2fvProc _glUniform2fv;
691	Uniform3fvProc _glUniform3fv;
692	Uniform4fvProc _glUniform4fv;
693	Uniform1ivProc _glUniform1iv;
694	Uniform2ivProc _glUniform2iv;
695	Uniform3ivProc _glUniform3iv;
696	Uniform4ivProc _glUniform4iv;
697	UniformMatrix2fvProc _glUniformMatrix2fv;
698	UniformMatrix3fvProc _glUniformMatrix3fv;
699	UniformMatrix4fvProc _glUniformMatrix4fv;
700	ValidateProgramProc _glValidateProgram;
701	VertexAttrib1dProc _glVertexAttrib1d;
702	VertexAttrib1dvProc _glVertexAttrib1dv;
703	VertexAttrib1fProc _glVertexAttrib1f;
704	VertexAttrib1fvProc _glVertexAttrib1fv;
705	VertexAttrib1sProc _glVertexAttrib1s;
706	VertexAttrib1svProc _glVertexAttrib1sv;
707	VertexAttrib2dProc _glVertexAttrib2d;
708	VertexAttrib2dvProc _glVertexAttrib2dv;
709	VertexAttrib2fProc _glVertexAttrib2f;
710	VertexAttrib2fvProc _glVertexAttrib2fv;
711	VertexAttrib2sProc _glVertexAttrib2s;
712	VertexAttrib2svProc _glVertexAttrib2sv;
713	VertexAttrib3dProc _glVertexAttrib3d;
714	VertexAttrib3dvProc _glVertexAttrib3dv;
715	VertexAttrib3fProc _glVertexAttrib3f;
716	VertexAttrib3fvProc _glVertexAttrib3fv;
717	VertexAttrib3sProc _glVertexAttrib3s;
718	VertexAttrib3svProc _glVertexAttrib3sv;
719	VertexAttrib4NbvProc _glVertexAttrib4Nbv;
720	VertexAttrib4NivProc _glVertexAttrib4Niv;
721	VertexAttrib4NsvProc _glVertexAttrib4Nsv;
722	VertexAttrib4NubProc _glVertexAttrib4Nub;
723	VertexAttrib4NubvProc _glVertexAttrib4Nubv;
724	VertexAttrib4NuivProc _glVertexAttrib4Nuiv;
725	VertexAttrib4NusvProc _glVertexAttrib4Nusv;
726	VertexAttrib4bvProc _glVertexAttrib4bv;
727	VertexAttrib4dProc _glVertexAttrib4d;
728	VertexAttrib4dvProc _glVertexAttrib4dv;
729	VertexAttrib4fProc _glVertexAttrib4f;
730	VertexAttrib4fvProc _glVertexAttrib4fv;
731	VertexAttrib4ivProc _glVertexAttrib4iv;
732	VertexAttrib4sProc _glVertexAttrib4s;
733	VertexAttrib4svProc _glVertexAttrib4sv;
734	VertexAttrib4ubvProc _glVertexAttrib4ubv;
735	VertexAttrib4uivProc _glVertexAttrib4uiv;
736	VertexAttrib4usvProc _glVertexAttrib4usv;
737	VertexAttribPointerProc _glVertexAttribPointer;
738
739	GetInfoLogARBProc _glGetInfoLogARB;
740	GetObjectParameterivARBProc _glGetObjectParameterivARB;
741	DeleteObjectARBProc _glDeleteObjectARB;
742	GetHandleProc _glGetHandleARB;
743
744	// GL 2.1
745	UniformMatrix2x3fvProc _glUniformMatrix2x3fv;
746	UniformMatrix3x2fvProc _glUniformMatrix3x2fv;
747	UniformMatrix2x4fvProc _glUniformMatrix2x4fv;
748	UniformMatrix4x2fvProc _glUniformMatrix4x2fv;
749	UniformMatrix3x4fvProc _glUniformMatrix3x4fv;
750	UniformMatrix4x3fvProc _glUniformMatrix4x3fv;
751
752	// EXT_geometry_shader4
753	ProgramParameteriProc _glProgramParameteri;
754	FramebufferTextureProc _glFramebufferTexture;
755	FramebufferTextureLayerProc _glFramebufferTextureLayer;
756	FramebufferTextureFaceProc _glFramebufferTextureFace;
757
758	// ARB_tesselation_shader
759	PatchParameteriProc _glPatchParameteri;
760	PatchParameterfvProc _glPatchParameterfv;
761
762	// EXT_gpu_shader4
763	GetUniformuivProc _glGetUniformuiv;
764	BindFragDataLocationProc _glBindFragDataLocation;
765	GetFragDataLocationProc _glGetFragDataLocation;
766	Uniform1uiProc _glUniform1ui;
767	Uniform2uiProc _glUniform2ui;
768	Uniform3uiProc _glUniform3ui;
769	Uniform4uiProc _glUniform4ui;
770	Uniform1uivProc _glUniform1uiv;
771	Uniform2uivProc _glUniform2uiv;
772	Uniform3uivProc _glUniform3uiv;
773	Uniform4uivProc _glUniform4uiv;
774
775	// ARB_uniform_buffer_object
776	GetUniformIndicesProc _glGetUniformIndices;
777	GetActiveUniformsivProc _glGetActiveUniformsiv;
778	GetActiveUniformNameProc _glGetActiveUniformName;
779	GetUniformBlockIndexProc _glGetUniformBlockIndex;
780	GetActiveUniformBlockivProc _glGetActiveUniformBlockiv;
781	GetActiveUniformBlockNameProc _glGetActiveUniformBlockName;
782	UniformBlockBindingProc _glUniformBlockBinding;
783
784	//ARB_get_program_binary
785	GetProgramBinaryProc _glGetProgramBinary;
786	ProgramBinaryProc _glProgramBinary;
787	};
788
789	}
790
791	#endif

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