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#ifndef APIENTRY
#define APIENTRY
#endif
#ifndef APIENTRYP
#define APIENTRYP APIENTRY *
#endif
// OpenGL deprecated functionality
#ifndef GL_QUADS
#define GL_QUADS 0x0007
#endif
#ifndef GL_ALPHA
#define GL_ALPHA 0x1906
#endif
#ifndef GL_ALPHA8
#define GL_ALPHA8 0x803C
#endif
#ifndef GL_ALPHA16
#define GL_ALPHA16 0x803E
#endif
#ifndef GL_COMPRESSED_ALPHA
#define GL_COMPRESSED_ALPHA 0x84E9
#endif
#ifndef GL_LUMINANCE
#define GL_LUMINANCE 0x1909
#endif
#ifndef GL_LUMINANCE8
#define GL_LUMINANCE8 0x8040
#endif
#ifndef GL_LUMINANCE16
#define GL_LUMINANCE16 0x8042
#endif
#ifndef GL_COMPRESSED_LUMINANCE
#define GL_COMPRESSED_LUMINANCE 0x84EA
#endif
#ifndef GL_LUMINANCE_ALPHA
#define GL_LUMINANCE_ALPHA 0x190A
#endif
#ifndef GL_LUMINANCE8_ALPHA8
#define GL_LUMINANCE8_ALPHA8 0x8045
#endif
#ifndef GL_LUMINANCE16_ALPHA16
#define GL_LUMINANCE16_ALPHA16 0x8048
#endif
#ifndef GL_COMPRESSED_LUMINANCE_ALPHA
#define GL_COMPRESSED_LUMINANCE_ALPHA 0x84EB
#endif
// OpenGL 1.3
#define glActiveTexture_ glActiveTexture
#define glBlendEquation_ glBlendEquation
#define glBlendColor_ glBlendColor
#define glTexImage3D_ glTexImage3D
#define glTexSubImage3D_ glTexSubImage3D
#define glCopyTexSubImage3D_ glCopyTexSubImage3D
#define glCompressedTexImage3D_ glCompressedTexImage3D
#define glCompressedTexImage2D_ glCompressedTexImage2D
#define glCompressedTexSubImage3D_ glCompressedTexSubImage3D
#define glCompressedTexSubImage2D_ glCompressedTexSubImage2D
#define glGetCompressedTexImage_ glGetCompressedTexImage
#define glDrawRangeElements_ glDrawRangeElements
extern PFNGLMULTIDRAWARRAYSPROC glMultiDrawArrays_;
extern PFNGLMULTIDRAWELEMENTSPROC glMultiDrawElements_;
extern PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate_;
extern PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate_;
extern PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate_;
extern PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate_;
extern PFNGLSTENCILMASKSEPARATEPROC glStencilMaskSeparate_;
extern PFNGLGENBUFFERSPROC glGenBuffers_;
extern PFNGLBINDBUFFERPROC glBindBuffer_;
extern PFNGLMAPBUFFERPROC glMapBuffer_;
extern PFNGLUNMAPBUFFERPROC glUnmapBuffer_;
extern PFNGLBUFFERDATAPROC glBufferData_;
extern PFNGLBUFFERSUBDATAPROC glBufferSubData_;
extern PFNGLDELETEBUFFERSPROC glDeleteBuffers_;
extern PFNGLGETBUFFERSUBDATAPROC glGetBufferSubData_;
extern PFNGLGENQUERIESPROC glGenQueries_;
extern PFNGLDELETEQUERIESPROC glDeleteQueries_;
extern PFNGLBEGINQUERYPROC glBeginQuery_;
extern PFNGLENDQUERYPROC glEndQuery_;
extern PFNGLGETQUERYIVPROC glGetQueryiv_;
extern PFNGLGETQUERYOBJECTIVPROC glGetQueryObjectiv_;
extern PFNGLGETQUERYOBJECTUIVPROC glGetQueryObjectuiv_;
extern PFNGLCREATEPROGRAMPROC glCreateProgram_;
extern PFNGLDELETEPROGRAMPROC glDeleteProgram_;
extern PFNGLUSEPROGRAMPROC glUseProgram_;
extern PFNGLCREATESHADERPROC glCreateShader_;
extern PFNGLDELETESHADERPROC glDeleteShader_;
extern PFNGLSHADERSOURCEPROC glShaderSource_;
extern PFNGLCOMPILESHADERPROC glCompileShader_;
extern PFNGLGETSHADERIVPROC glGetShaderiv_;
extern PFNGLGETPROGRAMIVPROC glGetProgramiv_;
extern PFNGLATTACHSHADERPROC glAttachShader_;
extern PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog_;
extern PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog_;
extern PFNGLLINKPROGRAMPROC glLinkProgram_;
extern PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation_;
extern PFNGLUNIFORM1FPROC glUniform1f_;
extern PFNGLUNIFORM2FPROC glUniform2f_;
extern PFNGLUNIFORM3FPROC glUniform3f_;
extern PFNGLUNIFORM4FPROC glUniform4f_;
extern PFNGLUNIFORM1FVPROC glUniform1fv_;
extern PFNGLUNIFORM2FVPROC glUniform2fv_;
extern PFNGLUNIFORM3FVPROC glUniform3fv_;
extern PFNGLUNIFORM4FVPROC glUniform4fv_;
extern PFNGLUNIFORM1IPROC glUniform1i_;
extern PFNGLUNIFORM2IPROC glUniform2i_;
extern PFNGLUNIFORM3IPROC glUniform3i_;
extern PFNGLUNIFORM4IPROC glUniform4i_;
extern PFNGLUNIFORM1IVPROC glUniform1iv_;
extern PFNGLUNIFORM2IVPROC glUniform2iv_;
extern PFNGLUNIFORM3IVPROC glUniform3iv_;
extern PFNGLUNIFORM4IVPROC glUniform4iv_;
extern PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv_;
extern PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv_;
extern PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_;
extern PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation_;
extern PFNGLGETACTIVEUNIFORMPROC glGetActiveUniform_;
extern PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray_;
extern PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray_;
extern PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f_;
extern PFNGLVERTEXATTRIB1FVPROC glVertexAttrib1fv_;
extern PFNGLVERTEXATTRIB1SPROC glVertexAttrib1s_;
extern PFNGLVERTEXATTRIB1SVPROC glVertexAttrib1sv_;
extern PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f_;
extern PFNGLVERTEXATTRIB2FVPROC glVertexAttrib2fv_;
extern PFNGLVERTEXATTRIB2SPROC glVertexAttrib2s_;
extern PFNGLVERTEXATTRIB2SVPROC glVertexAttrib2sv_;
extern PFNGLVERTEXATTRIB3FPROC glVertexAttrib3f_;
extern PFNGLVERTEXATTRIB3FVPROC glVertexAttrib3fv_;
extern PFNGLVERTEXATTRIB3SPROC glVertexAttrib3s_;
extern PFNGLVERTEXATTRIB3SVPROC glVertexAttrib3sv_;
extern PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f_;
extern PFNGLVERTEXATTRIB4FVPROC glVertexAttrib4fv_;
extern PFNGLVERTEXATTRIB4SPROC glVertexAttrib4s_;
extern PFNGLVERTEXATTRIB4SVPROC glVertexAttrib4sv_;
extern PFNGLVERTEXATTRIB4BVPROC glVertexAttrib4bv_;
extern PFNGLVERTEXATTRIB4IVPROC glVertexAttrib4iv_;
extern PFNGLVERTEXATTRIB4UBVPROC glVertexAttrib4ubv_;
extern PFNGLVERTEXATTRIB4UIVPROC glVertexAttrib4uiv_;
extern PFNGLVERTEXATTRIB4USVPROC glVertexAttrib4usv_;
extern PFNGLVERTEXATTRIB4NBVPROC glVertexAttrib4Nbv_;
extern PFNGLVERTEXATTRIB4NIVPROC glVertexAttrib4Niv_;
extern PFNGLVERTEXATTRIB4NUBPROC glVertexAttrib4Nub_;
extern PFNGLVERTEXATTRIB4NUBVPROC glVertexAttrib4Nubv_;
extern PFNGLVERTEXATTRIB4NUIVPROC glVertexAttrib4Nuiv_;
extern PFNGLVERTEXATTRIB4NUSVPROC glVertexAttrib4Nusv_;
extern PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer_;
extern PFNGLDRAWBUFFERSPROC glDrawBuffers_;
#ifndef GL_VERSION_2_1
#define GL_VERSION_2_1 1
#define GL_PIXEL_PACK_BUFFER 0x88EB
#define GL_PIXEL_UNPACK_BUFFER 0x88EC
#endif
#ifndef GL_EXT_texture_filter_anisotropic
#define GL_EXT_texture_filter_anisotropic 1
#define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
#define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
#endif
#ifndef GL_EXT_texture_compression_s3tc
#define GL_EXT_texture_compression_s3tc 1
#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
#endif
#ifndef GL_ARB_framebuffer_object
#define GL_ARB_framebuffer_object 1
#define GL_DEPTH_STENCIL_ATTACHMENT 0x821A
#define GL_DEPTH_STENCIL 0x84F9
#define GL_UNSIGNED_INT_24_8 0x84FA
#define GL_DEPTH24_STENCIL8 0x88F0
#define GL_FRAMEBUFFER_BINDING 0x8CA6
#define GL_READ_FRAMEBUFFER 0x8CA8
#define GL_DRAW_FRAMEBUFFER 0x8CA9
#define GL_FRAMEBUFFER_COMPLETE 0x8CD5
#define GL_COLOR_ATTACHMENT0 0x8CE0
#define GL_COLOR_ATTACHMENT1 0x8CE1
#define GL_DEPTH_ATTACHMENT 0x8D00
#define GL_STENCIL_ATTACHMENT 0x8D20
#define GL_FRAMEBUFFER 0x8D40
#define GL_RENDERBUFFER 0x8D41
typedef void (APIENTRYP PFNGLBINDRENDERBUFFERPROC) (GLenum target, GLuint renderbuffer);
typedef void (APIENTRYP PFNGLDELETERENDERBUFFERSPROC) (GLsizei n, const GLuint *renderbuffers);
typedef void (APIENTRYP PFNGLGENRENDERBUFFERSPROC) (GLsizei n, GLuint *renderbuffers);
typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEPROC) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
typedef void (APIENTRYP PFNGLBINDFRAMEBUFFERPROC) (GLenum target, GLuint framebuffer);
typedef void (APIENTRYP PFNGLDELETEFRAMEBUFFERSPROC) (GLsizei n, const GLuint *framebuffers);
typedef void (APIENTRYP PFNGLGENFRAMEBUFFERSPROC) (GLsizei n, GLuint *framebuffers);
typedef GLenum (APIENTRYP PFNGLCHECKFRAMEBUFFERSTATUSPROC) (GLenum target);
typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef void (APIENTRYP PFNGLFRAMEBUFFERRENDERBUFFERPROC) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
typedef void (APIENTRYP PFNGLGENERATEMIPMAPPROC) (GLenum target);
typedef void (APIENTRYP PFNGLBLITFRAMEBUFFERPROC) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
#endif
// GL_EXT_framebuffer_object
extern PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer_;
extern PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers_;
extern PFNGLGENFRAMEBUFFERSPROC glGenRenderbuffers_;
extern PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage_;
extern PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus_;
extern PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer_;
extern PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers_;
extern PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers_;
extern PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D_;
extern PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer_;
extern PFNGLGENERATEMIPMAPPROC glGenerateMipmap_;
// GL_EXT_framebuffer_blit
extern PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer_;
#ifndef GL_ARB_texture_rg
#define GL_ARB_texture_rg 1
#define GL_RG 0x8227
#define GL_R8 0x8229
#define GL_R16 0x822A
#define GL_RG8 0x822B
#define GL_RG16 0x822C
#define GL_R16F 0x822D
#define GL_R32F 0x822E
#define GL_RG16F 0x822F
#define GL_RG32F 0x8230
#endif
#ifndef GL_EXT_texture_compression_latc
#define GL_EXT_texture_compression_latc 1
#define GL_COMPRESSED_LUMINANCE_LATC1_EXT 0x8C70
#define GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT 0x8C72
#endif
#ifndef GL_ARB_texture_compression_rgtc
#define GL_ARB_texture_compression_rgtc 1
#define GL_COMPRESSED_RED_RGTC1 0x8DBB
#define GL_COMPRESSED_RG_RGTC2 0x8DBD
#endif
#ifndef GL_ARB_map_buffer_range
#define GL_ARB_map_buffer_range 1
#define GL_MAP_READ_BIT 0x0001
#define GL_MAP_WRITE_BIT 0x0002
#define GL_MAP_INVALIDATE_RANGE_BIT 0x0004
#define GL_MAP_INVALIDATE_BUFFER_BIT 0x0008
#define GL_MAP_FLUSH_EXPLICIT_BIT 0x0010
#define GL_MAP_UNSYNCHRONIZED_BIT 0x0020
typedef GLvoid* (APIENTRYP PFNGLMAPBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
typedef void (APIENTRYP PFNGLFLUSHMAPPEDBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length);
#endif
extern PFNGLMAPBUFFERRANGEPROC glMapBufferRange_;
extern PFNGLFLUSHMAPPEDBUFFERRANGEPROC glFlushMappedBufferRange_;
#ifndef GL_ARB_uniform_buffer_object
#define GL_ARB_uniform_buffer_object 1
#define GL_UNIFORM_BUFFER 0x8A11
#define GL_UNIFORM_BUFFER_BINDING 0x8A28
#define GL_UNIFORM_BUFFER_START 0x8A29
#define GL_UNIFORM_BUFFER_SIZE 0x8A2A
#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B
#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C
#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D
#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E
#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F
#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30
#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31
#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32
#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33
#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34
#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35
#define GL_ACTIVE_UNIFORM_BLOCKS 0x8A36
#define GL_UNIFORM_TYPE 0x8A37
#define GL_UNIFORM_SIZE 0x8A38
#define GL_UNIFORM_NAME_LENGTH 0x8A39
#define GL_UNIFORM_BLOCK_INDEX 0x8A3A
#define GL_UNIFORM_OFFSET 0x8A3B
#define GL_UNIFORM_ARRAY_STRIDE 0x8A3C
#define GL_UNIFORM_MATRIX_STRIDE 0x8A3D
#define GL_UNIFORM_IS_ROW_MAJOR 0x8A3E
#define GL_UNIFORM_BLOCK_BINDING 0x8A3F
#define GL_UNIFORM_BLOCK_DATA_SIZE 0x8A40
#define GL_UNIFORM_BLOCK_NAME_LENGTH 0x8A41
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43
#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44
#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45
#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46
#define GL_INVALID_INDEX 0xFFFFFFFFu
typedef void (APIENTRYP PFNGLGETUNIFORMINDICESPROC) (GLuint program, GLsizei uniformCount, const GLchar* *uniformNames, GLuint *uniformIndices);
typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMSIVPROC) (GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params);
typedef GLuint (APIENTRYP PFNGLGETUNIFORMBLOCKINDEXPROC) (GLuint program, const GLchar *uniformBlockName);
typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKIVPROC) (GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params);
typedef void (APIENTRYP PFNGLUNIFORMBLOCKBINDINGPROC) (GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
#endif
#ifndef GL_INVALID_INDEX
#define GL_INVALID_INDEX 0xFFFFFFFFu
#endif
extern PFNGLGETUNIFORMINDICESPROC glGetUniformIndices_;
extern PFNGLGETACTIVEUNIFORMSIVPROC glGetActiveUniformsiv_;
extern PFNGLGETUNIFORMBLOCKINDEXPROC glGetUniformBlockIndex_;
extern PFNGLGETACTIVEUNIFORMBLOCKIVPROC glGetActiveUniformBlockiv_;
extern PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding_;
#ifndef GL_VERSION_3_0
#define GL_VERSION_3_0 1
#define GL_NUM_EXTENSIONS 0x821D
#define GL_COMPARE_REF_TO_TEXTURE 0x884E
#define GL_MAX_VARYING_COMPONENTS 0x8B4B
#define GL_RGBA32F 0x8814
#define GL_RGB32F 0x8815
#define GL_RGBA16F 0x881A
#define GL_RGB16F 0x881B
#define GL_COMPRESSED_RED 0x8225
#define GL_COMPRESSED_RG 0x8226
typedef void (APIENTRYP PFNGLBINDBUFFERRANGEPROC) (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
typedef void (APIENTRYP PFNGLBINDBUFFERBASEPROC) (GLenum target, GLuint index, GLuint buffer);
typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONPROC) (GLuint program, GLuint color, const GLchar *name);
typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index);
#elif GL_GLEXT_VERSION < 43
typedef void (APIENTRYP PFNGLBINDBUFFERRANGEPROC) (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
typedef void (APIENTRYP PFNGLBINDBUFFERBASEPROC) (GLenum target, GLuint index, GLuint buffer);
#endif
extern PFNGLGETSTRINGIPROC glGetStringi_;
extern PFNGLBINDFRAGDATALOCATIONPROC glBindFragDataLocation_;
extern PFNGLBINDBUFFERBASEPROC glBindBufferBase_;
extern PFNGLBINDBUFFERRANGEPROC glBindBufferRange_;
#ifndef GL_VERSION_3_1
#define GL_VERSION_3_1 1
#define GL_TEXTURE_RECTANGLE 0x84F5
#endif
#ifndef GL_ARB_vertex_array_object
#define GL_ARB_vertex_array_object 1
#define GL_VERTEX_ARRAY_BINDING 0x85B5
typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array);
typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays);
typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
typedef GLboolean (APIENTRYP PFNGLISVERTEXARRAYPROC) (GLuint array);
#endif
extern PFNGLBINDVERTEXARRAYPROC glBindVertexArray_;
extern PFNGLDELETEVERTEXARRAYSPROC glDeleteVertexArrays_;
extern PFNGLGENVERTEXARRAYSPROC glGenVertexArrays_;
extern PFNGLISVERTEXARRAYPROC glIsVertexArray_;
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