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 10152 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(

[reveman, 2013/03/04 06:10:57]

The android impl can do what it's currently doing but lets have this function
lookup the texture bound to the target and pass it to the async upload delegate
so an impl can do something smarter if possible.

+    uint32 immediate_data_size, const gles2::WaitAsyncTexImage2DCHROMIUM& c) {
+  TRACE_EVENT0("gpu", "GLES2DecoderImpl::HandleWaitAsyncTexImage2DCHROMIUM");
+  GLenum target = static_cast<GLenum>(c.target);
+
+  if (!validators_->texture_target.IsValid(target)) {
+    SetGLError(
+        GL_INVALID_ENUM, "glWaitAsyncTexImage2DCHROMIUM", "target");
+    return error::kNoError;
+  }
+
+  async_pixel_transfer_delegate_->WaitOnUploadCompletion();
+  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