Add GLSL support for texelFetch

src/gpu/gl/GrGLAssembleInterface.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "gl/GrGLAssembleInterface.h"
 #include "GrGLUtil.h"
@@ skipping 189 matching lines @@
     GET_PROC(ShaderSource);
     GET_PROC(StencilFunc);
     GET_PROC(StencilFuncSeparate);
     GET_PROC(StencilMask);
     GET_PROC(StencilMaskSeparate);
     GET_PROC(StencilOp);
     GET_PROC(StencilOpSeparate);
     if (glVer >= GR_GL_VER(3,1)) {
         GET_PROC(TexBuffer);
     }
+    if (glVer >= GR_GL_VER(4,3)) {
+        GET_PROC(TexBufferRange);
+    }
     GET_PROC(TexImage2D);
     GET_PROC(TexParameteri);
     GET_PROC(TexParameteriv);
     if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
         GET_PROC(TexStorage2D);
     } else if (extensions.has("GL_EXT_texture_storage")) {
         GET_PROC_SUFFIX(TexStorage2D, EXT);
     }
     GET_PROC(TexSubImage2D);
     if (glVer >= GR_GL_VER(4,5) || extensions.has("GL_ARB_texture_barrier")) {
@@ skipping 428 matching lines @@
     GET_PROC(ShaderSource);
     GET_PROC(StencilFunc);
     GET_PROC(StencilFuncSeparate);
     GET_PROC(StencilMask);
     GET_PROC(StencilMaskSeparate);
     GET_PROC(StencilOp);
     GET_PROC(StencilOpSeparate);
 
     if (version >= GR_GL_VER(3,2)) {
         GET_PROC(TexBuffer);
+        GET_PROC(TexBufferRange);
     } else if (extensions.has("GL_OES_texture_buffer")) {
         GET_PROC_SUFFIX(TexBuffer, OES);
+        GET_PROC_SUFFIX(TexBufferRange, OES);
     } else if (extensions.has("GL_EXT_texture_buffer")) {
         GET_PROC_SUFFIX(TexBuffer, EXT);
+        GET_PROC_SUFFIX(TexBufferRange, EXT);
     }
 
     GET_PROC(TexImage2D);
     GET_PROC(TexParameteri);
     GET_PROC(TexParameteriv);
     GET_PROC(TexSubImage2D);
 
     if (version >= GR_GL_VER(3,0)) {
         GET_PROC(TexStorage2D);
     } else {
@@ skipping 226 matching lines @@
 
     if (extensions.has("GL_OES_sample_shading")) {
         GET_PROC_SUFFIX(MinSampleShading, OES);
     }
 
     interface->fStandard = kGLES_GrGLStandard;
     interface->fExtensions.swap(&extensions);
 
     return interface;
 }