Plumb through EGL_NV_post_sub_buffer and GLX_MESA_copy_sub_buffer.

gpu/command_buffer/client/gles2_implementation.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "../client/gles2_implementation.h"
 
 #include <set>
 #include <queue>
@@ skipping 2645 matching lines @@
   return *result;
 }
 
 void GLES2Implementation::DestroyStreamTextureCHROMIUM(GLuint texture) {
   GPU_CLIENT_LOG("[" << this << "] DestroyStreamTextureCHROMIUM("
       << texture << ")");
   TRACE_EVENT0("gpu", "GLES2::DestroyStreamTextureCHROMIUM");
   helper_->DestroyStreamTextureCHROMIUM(texture);
 }
 
+void GLES2Implementation::PostSubBufferCHROMIUM(
+    GLint x, GLint y, GLint width, GLint height) {
+  GPU_CLIENT_LOG("[" << this << "] PostSubBufferCHROMIUM("
+      << x << ", " << y << ", " << width << ", " << height << ")");
+  TRACE_EVENT0("gpu", "GLES2::PostSubBufferCHROMIUM");
+  helper_->PostSubBufferCHROMIUM(x, y, width, height);
+}

[apatrick_chromium, 2011/11/10 19:33:16]

I think the flush should go here. The EGL_NV_post_sub_buffer spec says this
PostSubBuffer is an implicit flush. You might also want the flow control stuff
GLES2Implementation::SwapBuffers here.

[jonathan.backer, 2011/11/10 21:00:25]

Done.

+
 }  // namespace gles2
 }  // namespace gpu