gpu: Add the ability to wait on upload completion.

gpu/command_buffer/service/gles2_cmd_decoder.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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 10139 matching lines @@
 
   gfx::AsyncTexSubImage2DParams tex_params = {target, level, xoffset, yoffset,
                                               width, height, format, type};
   gfx::AsyncMemoryParams mem_params = {shared_memory, shm_size,
                                        shm_data_offset, shm_data_size};
   async_pixel_transfer_delegate_->AsyncTexSubImage2D(
       info->GetAsyncTransferState(), tex_params, mem_params);
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleWaitAsyncTexImage2DCHROMIUM(
+    uint32 immediate_data_size, const cmds::WaitAsyncTexImage2DCHROMIUM& c) {
+  TRACE_EVENT0("gpu", "GLES2DecoderImpl::HandleWaitAsyncTexImage2DCHROMIUM");
+  GLenum target = static_cast<GLenum>(c.target);
+
+  if (GL_TEXTURE_2D != target) {
+    SetGLError(GL_INVALID_ENUM, "glWaitAsyncTexImage2DCHROMIUM", "target");
+    return error::kNoError;
+  }
+  Texture* info = GetTextureInfoForTarget(target);
+  if (!info) {
+      SetGLError(GL_INVALID_OPERATION,
+                 "glWaitAsyncTexImage2DCHROMIUM", "unknown texture");
+    return error::kNoError;
+  }
+  async_pixel_transfer_delegate_->WaitForTransferCompletion(
+      info->GetAsyncTransferState());
+  return error::kNoError;
+}
+
 // 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/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu