Add Sync related APIs to GPU command buffer: Part I

gpu/command_buffer/client/gles2_implementation.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
@@ skipping 958 matching lines @@
   return true;
 }
 
 void GLES2Implementation::DeleteShaderStub(
     GLsizei n, const GLuint* shaders) {
   DCHECK_EQ(1, n);
   share_group_->program_info_manager()->DeleteInfo(shaders[0]);
   helper_->DeleteShader(shaders[0]);
 }
 
+void GLES2Implementation::DeleteSyncHelper(GLsync sync) {
+  GLuint my_sync = ToGLuint(sync);

[piman, 2015/01/22 00:49:32]

nit: anything better than my_?
Maybe uint_sync?

[Zhenyao Mo, 2015/01/22 01:12:57]

Done.

+  if (!GetIdHandler(id_namespaces::kSyncs)->FreeIds(
+      this, 1, &my_sync, &GLES2Implementation::DeleteSyncStub)) {
+    SetGLError(
+        GL_INVALID_VALUE,
+        "glDeleteSync", "id not created by this context.");
+  }
+}
+
+void GLES2Implementation::DeleteSyncStub(GLsizei n, const GLuint* syncs) {
+  DCHECK_EQ(1, n);
+  helper_->DeleteSync(syncs[0]);
+}
 
 GLint GLES2Implementation::GetAttribLocationHelper(
     GLuint program, const char* name) {
   typedef cmds::GetAttribLocation::Result Result;
   Result* result = GetResultAs<Result*>();
   if (!result) {
     return -1;
   }
   *result = -1;
   SetBucketAsCString(kResultBucketId, name);
@@ skipping 3341 matching lines @@
   return false;
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu