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      1 
      2 /*
      3  * Copyright 2012 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 #ifndef GrGLFunctions_DEFINED
     10 #define GrGLFunctions_DEFINED
     11 
     12 #include "GrGLConfig.h"
     13 
     14 ////////////////////////////////////////////////////////////////////////////////
     15 
     16 /**
     17  * Classifies GL contexts by which standard they implement (currently as Desktop
     18  * vs. ES).
     19  */
     20 enum GrGLStandard {
     21     kNone_GrGLStandard,
     22     kGL_GrGLStandard,
     23     kGLES_GrGLStandard,
     24 };
     25 static const int kGrGLStandardCnt = 3;
     26 
     27 ///////////////////////////////////////////////////////////////////////////////
     28 
     29 /**
     30  * Declares typedefs for all the GL functions used in GrGLInterface
     31  */
     32 
     33 typedef unsigned int GrGLenum;
     34 typedef unsigned char GrGLboolean;
     35 typedef unsigned int GrGLbitfield;
     36 typedef signed char GrGLbyte;
     37 typedef char GrGLchar;
     38 typedef short GrGLshort;
     39 typedef int GrGLint;
     40 typedef int GrGLsizei;
     41 typedef int64_t GrGLint64;
     42 typedef unsigned char GrGLubyte;
     43 typedef unsigned short GrGLushort;
     44 typedef unsigned int GrGLuint;
     45 typedef uint64_t GrGLuint64;
     46 typedef float GrGLfloat;
     47 typedef float GrGLclampf;
     48 typedef double GrGLdouble;
     49 typedef double GrGLclampd;
     50 typedef void GrGLvoid;
     51 #ifndef SK_IGNORE_64BIT_OPENGL_CHANGES
     52 #ifdef _WIN64
     53 typedef signed long long int GrGLintptr;
     54 typedef signed long long int GrGLsizeiptr;
     55 #else
     56 typedef signed long int GrGLintptr;
     57 typedef signed long int GrGLsizeiptr;
     58 #endif
     59 #else
     60 typedef signed long int GrGLintptr;
     61 typedef signed long int GrGLsizeiptr;
     62 #endif
     63 
     64 ///////////////////////////////////////////////////////////////////////////////
     65 
     66 extern "C" {
     67     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLActiveTextureProc)(GrGLenum texture);
     68     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLAttachShaderProc)(GrGLuint program, GrGLuint shader);
     69     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBeginQueryProc)(GrGLenum target, GrGLuint id);
     70     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindAttribLocationProc)(GrGLuint program, GrGLuint index, const char* name);
     71     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindBufferProc)(GrGLenum target, GrGLuint buffer);
     72     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindFramebufferProc)(GrGLenum target, GrGLuint framebuffer);
     73     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindRenderbufferProc)(GrGLenum target, GrGLuint renderbuffer);
     74     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindTextureProc)(GrGLenum target, GrGLuint texture);
     75     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindFragDataLocationProc)(GrGLuint program, GrGLuint colorNumber, const GrGLchar* name);
     76     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindFragDataLocationIndexedProc)(GrGLuint program, GrGLuint colorNumber, GrGLuint index, const GrGLchar * name);
     77     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindVertexArrayProc)(GrGLuint array);
     78     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBlendBarrierProc)();
     79     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBlendColorProc)(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha);
     80     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBlendEquationProc)(GrGLenum mode);
     81     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBlendFuncProc)(GrGLenum sfactor, GrGLenum dfactor);
     82     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBlitFramebufferProc)(GrGLint srcX0, GrGLint srcY0, GrGLint srcX1, GrGLint srcY1, GrGLint dstX0, GrGLint dstY0, GrGLint dstX1, GrGLint dstY1, GrGLbitfield mask, GrGLenum filter);
     83     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBufferDataProc)(GrGLenum target, GrGLsizeiptr size, const GrGLvoid* data, GrGLenum usage);
     84     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBufferSubDataProc)(GrGLenum target, GrGLintptr offset, GrGLsizeiptr size, const GrGLvoid* data);
     85     typedef GrGLenum (GR_GL_FUNCTION_TYPE* GrGLCheckFramebufferStatusProc)(GrGLenum target);
     86     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLClearProc)(GrGLbitfield mask);
     87     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLClearColorProc)(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha);
     88     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLClearStencilProc)(GrGLint s);
     89     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLClientActiveTextureProc)(GrGLenum texture);
     90     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLColorMaskProc)(GrGLboolean red, GrGLboolean green, GrGLboolean blue, GrGLboolean alpha);
     91     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCompileShaderProc)(GrGLuint shader);
     92     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCompressedTexImage2DProc)(GrGLenum target, GrGLint level, GrGLenum internalformat, GrGLsizei width, GrGLsizei height, GrGLint border, GrGLsizei imageSize, const GrGLvoid* data);
     93     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCompressedTexSubImage2DProc)(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLsizei imageSize, const GrGLvoid* data);
     94     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCopyTexSubImage2DProc)(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height);
     95     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCopyTextureCHROMIUMProc)(GrGLenum target, GrGLenum src, GrGLenum dst, GrGLint level, GrGLint format, GrGLenum type);
     96     typedef GrGLuint (GR_GL_FUNCTION_TYPE* GrGLCreateProgramProc)(void);
     97     typedef GrGLuint (GR_GL_FUNCTION_TYPE* GrGLCreateShaderProc)(GrGLenum type);
     98     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCullFaceProc)(GrGLenum mode);
     99     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteBuffersProc)(GrGLsizei n, const GrGLuint* buffers);
    100     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteFramebuffersProc)(GrGLsizei n, const GrGLuint *framebuffers);
    101     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteProgramProc)(GrGLuint program);
    102     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteQueriesProc)(GrGLsizei n, const GrGLuint *ids);
    103     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteRenderbuffersProc)(GrGLsizei n, const GrGLuint *renderbuffers);
    104     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteShaderProc)(GrGLuint shader);
    105     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteTexturesProc)(GrGLsizei n, const GrGLuint* textures);
    106     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeleteVertexArraysProc)(GrGLsizei n, const GrGLuint *arrays);
    107     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDepthMaskProc)(GrGLboolean flag);
    108     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDisableProc)(GrGLenum cap);
    109     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDisableVertexAttribArrayProc)(GrGLuint index);
    110     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDrawArraysProc)(GrGLenum mode, GrGLint first, GrGLsizei count);
    111     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDrawBufferProc)(GrGLenum mode);
    112     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDrawBuffersProc)(GrGLsizei n, const GrGLenum* bufs);
    113     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDrawElementsProc)(GrGLenum mode, GrGLsizei count, GrGLenum type, const GrGLvoid* indices);
    114     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLEnableProc)(GrGLenum cap);
    115     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLEnableVertexAttribArrayProc)(GrGLuint index);
    116     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLEndQueryProc)(GrGLenum target);
    117     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFinishProc)();
    118     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFlushProc)();
    119     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFlushMappedBufferRangeProc)(GrGLenum target, GrGLintptr offset, GrGLsizeiptr length);
    120     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFramebufferRenderbufferProc)(GrGLenum target, GrGLenum attachment, GrGLenum renderbuffertarget, GrGLuint renderbuffer);
    121     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFramebufferTexture2DProc)(GrGLenum target, GrGLenum attachment, GrGLenum textarget, GrGLuint texture, GrGLint level);
    122     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFramebufferTexture2DMultisampleProc)(GrGLenum target, GrGLenum attachment, GrGLenum textarget, GrGLuint texture, GrGLint level, GrGLsizei samples);
    123     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFrontFaceProc)(GrGLenum mode);
    124     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenBuffersProc)(GrGLsizei n, GrGLuint* buffers);
    125     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenFramebuffersProc)(GrGLsizei n, GrGLuint *framebuffers);
    126     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenerateMipmapProc)(GrGLenum target);
    127     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenQueriesProc)(GrGLsizei n, GrGLuint *ids);
    128     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenRenderbuffersProc)(GrGLsizei n, GrGLuint *renderbuffers);
    129     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenTexturesProc)(GrGLsizei n, GrGLuint* textures);
    130     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGenVertexArraysProc)(GrGLsizei n, GrGLuint *arrays);
    131     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetBufferParameterivProc)(GrGLenum target, GrGLenum pname, GrGLint* params);
    132     typedef GrGLenum (GR_GL_FUNCTION_TYPE* GrGLGetErrorProc)();
    133     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetFramebufferAttachmentParameterivProc)(GrGLenum target, GrGLenum attachment, GrGLenum pname, GrGLint* params);
    134     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetIntegervProc)(GrGLenum pname, GrGLint* params);
    135     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetProgramInfoLogProc)(GrGLuint program, GrGLsizei bufsize, GrGLsizei* length, char* infolog);
    136     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetProgramivProc)(GrGLuint program, GrGLenum pname, GrGLint* params);
    137     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetQueryivProc)(GrGLenum GLtarget, GrGLenum pname, GrGLint *params);
    138     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetQueryObjecti64vProc)(GrGLuint id, GrGLenum pname, GrGLint64 *params);
    139     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetQueryObjectivProc)(GrGLuint id, GrGLenum pname, GrGLint *params);
    140     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetQueryObjectui64vProc)(GrGLuint id, GrGLenum pname, GrGLuint64 *params);
    141     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetQueryObjectuivProc)(GrGLuint id, GrGLenum pname, GrGLuint *params);
    142     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetRenderbufferParameterivProc)(GrGLenum target, GrGLenum pname, GrGLint* params);
    143     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetShaderInfoLogProc)(GrGLuint shader, GrGLsizei bufsize, GrGLsizei* length, char* infolog);
    144     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetShaderivProc)(GrGLuint shader, GrGLenum pname, GrGLint* params);
    145     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetShaderPrecisionFormatProc)(GrGLenum shadertype, GrGLenum precisiontype, GrGLint *range, GrGLint *precision);
    146     typedef const GrGLubyte* (GR_GL_FUNCTION_TYPE* GrGLGetStringProc)(GrGLenum name);
    147     typedef const GrGLubyte* (GR_GL_FUNCTION_TYPE* GrGLGetStringiProc)(GrGLenum name, GrGLuint index);
    148     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetTexLevelParameterivProc)(GrGLenum target, GrGLint level, GrGLenum pname, GrGLint* params);
    149     typedef GrGLint (GR_GL_FUNCTION_TYPE* GrGLGetUniformLocationProc)(GrGLuint program, const char* name);
    150     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInsertEventMarkerProc)(GrGLsizei length, const char* marker);
    151     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateBufferDataProc)(GrGLuint buffer);
    152     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateBufferSubDataProc)(GrGLuint buffer, GrGLintptr offset, GrGLsizeiptr length);
    153     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateFramebufferProc)(GrGLenum target, GrGLsizei numAttachments,  const GrGLenum *attachments);
    154     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateSubFramebufferProc)(GrGLenum target, GrGLsizei numAttachments, const GrGLenum *attachments, GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height);
    155     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateTexImageProc)(GrGLuint texture, GrGLint level);
    156     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInvalidateTexSubImageProc)(GrGLuint texture, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLint zoffset, GrGLsizei width, GrGLsizei height, GrGLsizei depth);
    157     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLLineWidthProc)(GrGLfloat width);
    158     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLLinkProgramProc)(GrGLuint program);
    159     typedef GrGLvoid* (GR_GL_FUNCTION_TYPE* GrGLMapBufferProc)(GrGLenum target, GrGLenum access);
    160     typedef GrGLvoid* (GR_GL_FUNCTION_TYPE* GrGLMapBufferRangeProc)(GrGLenum target, GrGLintptr offset, GrGLsizeiptr length, GrGLbitfield access);
    161     typedef GrGLvoid* (GR_GL_FUNCTION_TYPE* GrGLMapBufferSubDataProc)(GrGLuint target, GrGLintptr offset, GrGLsizeiptr size, GrGLenum access);
    162     typedef GrGLvoid* (GR_GL_FUNCTION_TYPE* GrGLMapTexSubImage2DProc)(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, GrGLenum access);
    163     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPixelStoreiProc)(GrGLenum pname, GrGLint param);
    164     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPopGroupMarkerProc)();
    165     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPushGroupMarkerProc)(GrGLsizei length, const char* marker);
    166     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLQueryCounterProc)(GrGLuint id, GrGLenum target);
    167     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLReadBufferProc)(GrGLenum src);
    168     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLReadPixelsProc)(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, GrGLvoid* pixels);
    169     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLRenderbufferStorageProc)(GrGLenum target, GrGLenum internalformat, GrGLsizei width, GrGLsizei height);
    170     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLRenderbufferStorageMultisampleProc)(GrGLenum target, GrGLsizei samples, GrGLenum internalformat, GrGLsizei width, GrGLsizei height);
    171     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLResolveMultisampleFramebufferProc)();
    172     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLScissorProc)(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height);
    173     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLBindUniformLocation)(GrGLuint program, GrGLint location, const char* name);
    174 
    175 #if GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE
    176     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLShaderSourceProc)(GrGLuint shader, GrGLsizei count, const char* const * str, const GrGLint* length);
    177 #else
    178     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLShaderSourceProc)(GrGLuint shader, GrGLsizei count, const char** str, const GrGLint* length);
    179 #endif
    180     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilFuncProc)(GrGLenum func, GrGLint ref, GrGLuint mask);
    181     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilFuncSeparateProc)(GrGLenum face, GrGLenum func, GrGLint ref, GrGLuint mask);
    182     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilMaskProc)(GrGLuint mask);
    183     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilMaskSeparateProc)(GrGLenum face, GrGLuint mask);
    184     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilOpProc)(GrGLenum fail, GrGLenum zfail, GrGLenum zpass);
    185     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilOpSeparateProc)(GrGLenum face, GrGLenum fail, GrGLenum zfail, GrGLenum zpass);
    186     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexImage2DProc)(GrGLenum target, GrGLint level, GrGLint internalformat, GrGLsizei width, GrGLsizei height, GrGLint border, GrGLenum format, GrGLenum type, const GrGLvoid* pixels);
    187     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexParameteriProc)(GrGLenum target, GrGLenum pname, GrGLint param);
    188     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexParameterivProc)(GrGLenum target, GrGLenum pname, const GrGLint* params);
    189     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexStorage2DProc)(GrGLenum target, GrGLsizei levels, GrGLenum internalformat, GrGLsizei width, GrGLsizei height);
    190     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDiscardFramebufferProc)(GrGLenum target, GrGLsizei numAttachments, const GrGLenum* attachments);
    191     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexSubImage2DProc)(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, const GrGLvoid* pixels);
    192     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTextureBarrierProc)();
    193     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1fProc)(GrGLint location, GrGLfloat v0);
    194     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1iProc)(GrGLint location, GrGLint v0);
    195     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1fvProc)(GrGLint location, GrGLsizei count, const GrGLfloat* v);
    196     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1ivProc)(GrGLint location, GrGLsizei count, const GrGLint* v);
    197     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform2fProc)(GrGLint location, GrGLfloat v0, GrGLfloat v1);
    198     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform2iProc)(GrGLint location, GrGLint v0, GrGLint v1);
    199     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform2fvProc)(GrGLint location, GrGLsizei count, const GrGLfloat* v);
    200     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform2ivProc)(GrGLint location, GrGLsizei count, const GrGLint* v);
    201     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform3fProc)(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2);
    202     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform3iProc)(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2);
    203     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform3fvProc)(GrGLint location, GrGLsizei count, const GrGLfloat* v);
    204     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform3ivProc)(GrGLint location, GrGLsizei count, const GrGLint* v);
    205     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform4fProc)(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2, GrGLfloat v3);
    206     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform4iProc)(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2, GrGLint v3);
    207     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform4fvProc)(GrGLint location, GrGLsizei count, const GrGLfloat* v);
    208     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform4ivProc)(GrGLint location, GrGLsizei count, const GrGLint* v);
    209     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniformMatrix2fvProc)(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value);
    210     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniformMatrix3fvProc)(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value);
    211     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniformMatrix4fvProc)(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value);
    212     typedef GrGLboolean (GR_GL_FUNCTION_TYPE* GrGLUnmapBufferProc)(GrGLenum target);
    213     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUnmapBufferSubDataProc)(const GrGLvoid* mem);
    214     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUnmapTexSubImage2DProc)(const GrGLvoid* mem);
    215     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUseProgramProc)(GrGLuint program);
    216     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLVertexAttrib1fProc)(GrGLuint indx, const GrGLfloat value);
    217     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLVertexAttrib2fvProc)(GrGLuint indx, const GrGLfloat* values);
    218     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLVertexAttrib3fvProc)(GrGLuint indx, const GrGLfloat* values);
    219     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLVertexAttrib4fvProc)(GrGLuint indx, const GrGLfloat* values);
    220     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLVertexAttribPointerProc)(GrGLuint indx, GrGLint size, GrGLenum type, GrGLboolean normalized, GrGLsizei stride, const GrGLvoid* ptr);
    221     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLViewportProc)(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height);
    222 
    223     // Experimental: Functions for GL_NV_path_rendering. These will be
    224     // alphabetized with the above functions once this is fully supported
    225     // (and functions we are unlikely to use will possibly be omitted).
    226     // EXT_direct_state_access
    227     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLMatrixLoadfProc)(GrGLenum matrixMode, const GrGLfloat* m);
    228     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLMatrixLoadIdentityProc)(GrGLenum);
    229     // ARB_program_interface_query
    230     typedef GrGLint (GR_GL_FUNCTION_TYPE* GrGLGetProgramResourceLocationProc)(GrGLuint program, GrGLenum programInterface, const GrGLchar *name);
    231     // NV_path_rendering
    232     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathCommandsProc)(GrGLuint path, GrGLsizei numCommands, const GrGLubyte *commands, GrGLsizei numCoords, GrGLenum coordType, const GrGLvoid *coords);
    233     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathCoordsProc)(GrGLuint path, GrGLsizei numCoords, GrGLenum coordType, const GrGLvoid *coords);
    234     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathSubCoordsProc)(GrGLuint path, GrGLsizei coordStart, GrGLsizei numCoords, GrGLenum coordType, const GrGLvoid *coords);
    235     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathStringProc)(GrGLuint path, GrGLenum format, GrGLsizei length, const GrGLvoid *pathString);
    236     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathGlyphsProc)(GrGLuint firstPathName, GrGLenum fontTarget, const GrGLvoid *fontName, GrGLbitfield fontStyle, GrGLsizei numGlyphs, GrGLenum type, const GrGLvoid *charcodes, GrGLenum handleMissingGlyphs, GrGLuint pathParameterTemplate, GrGLfloat emScale);
    237     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathGlyphRangeProc)(GrGLuint firstPathName, GrGLenum fontTarget, const GrGLvoid *fontName, GrGLbitfield fontStyle, GrGLuint firstGlyph, GrGLsizei numGlyphs, GrGLenum handleMissingGlyphs, GrGLuint pathParameterTemplate, GrGLfloat emScale);
    238     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLWeightPathsProc)(GrGLuint resultPath, GrGLsizei numPaths, const GrGLuint paths[], const GrGLfloat weights[]);
    239     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCopyPathProc)(GrGLuint resultPath, GrGLuint srcPath);
    240     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLInterpolatePathsProc)(GrGLuint resultPath, GrGLuint pathA, GrGLuint pathB, GrGLfloat weight);
    241     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTransformPathProc)(GrGLuint resultPath, GrGLuint srcPath, GrGLenum transformType, const GrGLfloat *transformValues);
    242     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathParameteriProc)(GrGLuint path, GrGLenum pname, GrGLint value);
    243     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathParameterfProc)(GrGLuint path, GrGLenum pname, GrGLfloat value);
    244     typedef GrGLuint (GR_GL_FUNCTION_TYPE* GrGLGenPathsProc)(GrGLsizei range);
    245     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDeletePathsProc)(GrGLuint path, GrGLsizei range);
    246     typedef GrGLboolean (GR_GL_FUNCTION_TYPE* GrGLIsPathProc)(GrGLuint path);
    247     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathStencilFuncProc)(GrGLenum func, GrGLint ref, GrGLuint mask);
    248     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilFillPathProc)(GrGLuint path, GrGLenum fillMode, GrGLuint mask);
    249     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilStrokePathProc)(GrGLuint path, GrGLint reference, GrGLuint mask);
    250     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilFillPathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLenum fillMode, GrGLuint mask, GrGLenum transformType, const GrGLfloat *transformValues);
    251     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilStrokePathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLint reference, GrGLuint mask, GrGLenum transformType, const GrGLfloat *transformValues);
    252     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLPathTexGenProc)(GrGLenum texCoordSet, GrGLenum genMode, GrGLint components, const GrGLfloat *coeffs);
    253     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCoverFillPathProc)(GrGLuint path, GrGLenum coverMode);
    254     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCoverStrokePathProc)(GrGLuint name, GrGLenum coverMode);
    255     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCoverFillPathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLenum coverMode, GrGLenum transformType, const GrGLfloat *transformValues);
    256     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCoverStrokePathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLenum coverMode, GrGLenum transformType, const GrGLfloat* transformValues);
    257     // NV_path_rendering v1.2
    258     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilThenCoverFillPathProc)(GrGLuint path, GrGLenum fillMode, GrGLuint mask, GrGLenum coverMode);
    259     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilThenCoverStrokePathProc)(GrGLuint path, GrGLint reference, GrGLuint mask, GrGLenum coverMode);
    260     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilThenCoverFillPathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLenum fillMode, GrGLuint mask, GrGLenum coverMode, GrGLenum transformType, const GrGLfloat *transformValues);
    261     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLStencilThenCoverStrokePathInstancedProc)(GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths, GrGLuint pathBase, GrGLint reference, GrGLuint mask, GrGLenum coverMode, GrGLenum transformType, const GrGLfloat *transformValues);
    262     // NV_path_rendering v1.3
    263     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLProgramPathFragmentInputGenProc)(GrGLuint program, GrGLint location, GrGLenum genMode, GrGLint components,const GrGLfloat *coeffs);
    264     typedef GrGLenum (GR_GL_FUNCTION_TYPE* GrGLPathMemoryGlyphIndexArrayProc)(GrGLuint firstPathName, GrGLenum fontTarget, GrGLsizeiptr fontSize, const GrGLvoid *fontData, GrGLsizei faceIndex, GrGLuint firstGlyphIndex, GrGLsizei numGlyphs, GrGLuint pathParameterTemplate, GrGLfloat emScale);
    265     // GL_NV_framebuffer_mixed_samples
    266     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLCoverageModulationProc)(GrGLenum components);
    267 }  // extern "C"
    268 
    269 #endif
    270