Add support for glDrawRangeElements

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 130 matching lines @@
     if (glVer >= GR_GL_VER(3,1) || extensions.has("GL_ARB_draw_instanced") ||
         extensions.has("GL_EXT_draw_instanced")) {
         GET_PROC(DrawArraysInstanced);
         GET_PROC(DrawElementsInstanced);
     }
 
     if (glVer >= GR_GL_VER(4,0) || extensions.has("GL_ARB_draw_indirect")) {
         GET_PROC(DrawArraysIndirect);
         GET_PROC(DrawElementsIndirect);
     }
-
+    if (glVer >= GR_GL_VER(2,0)) {
+        GET_PROC(DrawRangeElements);
+    }
     GET_PROC(Enable);
     GET_PROC(EnableVertexAttribArray);
     GET_PROC(EndQuery);
     GET_PROC(Finish);
     GET_PROC(Flush);
     GET_PROC(FrontFace);
     GET_PROC(GenBuffers);
     GET_PROC(GenerateMipmap);
     GET_PROC(GetBufferParameteriv);
     GET_PROC(GetError);
@@ skipping 446 matching lines @@
         GET_PROC_SUFFIX(DrawArraysInstanced, EXT);
         GET_PROC_SUFFIX(DrawElementsInstanced, EXT);
     }
 
     if (version >= GR_GL_VER(3,1)) {
         GET_PROC(DrawArraysIndirect);
         GET_PROC(DrawElementsIndirect);
     }
 
     GET_PROC(DrawElements);
+    if (version >= GR_GL_VER(3,0)) {
+        GET_PROC(DrawRangeElements);
+    }
     GET_PROC(Enable);
     GET_PROC(EnableVertexAttribArray);
     GET_PROC(Finish);
     GET_PROC(Flush);
     GET_PROC(FrontFace);
     GET_PROC(GenBuffers);
     GET_PROC(GenerateMipmap);
     GET_PROC(GenTextures);
     GET_PROC_SUFFIX(GenVertexArrays, OES);
     GET_PROC(GetBufferParameteriv);
@@ skipping 284 matching lines @@
 
     if (extensions.has("GL_OES_sample_shading")) {
         GET_PROC_SUFFIX(MinSampleShading, OES);
     }
 
     interface->fStandard = kGLES_GrGLStandard;
     interface->fExtensions.swap(&extensions);
 
     return interface;
 }