skia: GrGLAssembleGLInterface update load chromium extension functions

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 "GrGLAssembleInterface.h"
@@ skipping 599 matching lines @@
     GET_PROC(VertexAttribPointer);
     GET_PROC(Viewport);
     GET_PROC(BindFramebuffer);
     GET_PROC(BindRenderbuffer);
     GET_PROC(CheckFramebufferStatus);
     GET_PROC(DeleteFramebuffers);
     GET_PROC(DeleteRenderbuffers);
     GET_PROC(FramebufferRenderbuffer);
     GET_PROC(FramebufferTexture2D);
 
-    if (version >= GR_GL_VER(3,0)) {
+    if (extensions.has("GL_CHROMIUM_framebuffer_multisample")) {
+        GET_PROC_SUFFIX(RenderbufferStorageMultisample, CHROMIUM);
+        GET_PROC_SUFFIX(BlitFramebuffer, CHROMIUM);
+    } else if (version >= GR_GL_VER(3,0)) {
         GET_PROC(RenderbufferStorageMultisample);
         GET_PROC(BlitFramebuffer);
     }
 
+    if (extensions.has("GL_CHROMIUM_map_sub")) {
+        GET_PROC_SUFFIX(MapBufferSubData, CHROMIUM);
+        GET_PROC_SUFFIX(MapTexSubImage2D, CHROMIUM);
+        GET_PROC_SUFFIX(UnmapBufferSubData, CHROMIUM);
+        GET_PROC_SUFFIX(UnmapTexSubImage2D, CHROMIUM);
+    }
+
     if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, EXT);
         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleEXT");
     } else if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, IMG);
         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleIMG");
     } else if (extensions.has("GL_APPLE_framebuffer_multisample")) {
         functions->fRenderbufferStorageMultisampleES2APPLE = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleAPPLE");
         GET_PROC_SUFFIX(ResolveMultisampleFramebuffer, APPLE);
     }
@@ skipping 101 matching lines @@
         GET_PROC_SUFFIX(PushDebugGroup, KHR);
         GET_PROC_SUFFIX(PopDebugGroup, KHR);
         GET_PROC_SUFFIX(ObjectLabel, KHR);
     }
 
     interface->fStandard = kGLES_GrGLStandard;
     interface->fExtensions.swap(&extensions);
 
     return interface;
 }