gpu: Add async upload functions.

gpu/command_buffer/service/query_manager.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/query_manager.h"
 #include "base/atomicops.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 144 matching lines @@
 
 void CommandLatencyQuery::Destroy(bool /* have_context */) {
   if (!IsDeleted()) {
     MarkAsDeleted();
   }
 }
 
 CommandLatencyQuery::~CommandLatencyQuery() {
 }
 
+class AsyncPixelTransfersCompletedQuery : public QueryManager::Query {
+ public:
+  AsyncPixelTransfersCompletedQuery(
+      QueryManager* manager, GLenum target, int32 shm_id, uint32 shm_offset);
+
+  virtual bool Begin() OVERRIDE;
+  virtual bool End(uint32 submit_count) OVERRIDE;
+  virtual bool Process() OVERRIDE;
+  virtual void Destroy(bool have_context) OVERRIDE;
+
+ protected:
+  virtual ~AsyncPixelTransfersCompletedQuery();
+};
+
+AsyncPixelTransfersCompletedQuery::AsyncPixelTransfersCompletedQuery(
+    QueryManager* manager, GLenum target, int32 shm_id, uint32 shm_offset)
+    : Query(manager, target, shm_id, shm_offset) {
+}
+
+bool AsyncPixelTransfersCompletedQuery::Begin() {
+  return true;
+}
+
+bool AsyncPixelTransfersCompletedQuery::End(uint32 submit_count) {
+  // TODO(epenner): Mark completion via an async task.
+  // TODO(epenner): This will be a boolean to start, indicating
+  // completion of all tasks in the query. We could change this
+  // to return a count of tasks completed instead.
+  MarkAsPending(submit_count);
+  return MarkAsCompleted(1);
+}
+
+bool AsyncPixelTransfersCompletedQuery::Process() {
+  NOTREACHED();
+  return true;
+}
+
+void AsyncPixelTransfersCompletedQuery::Destroy(bool /* have_context */) {
+  if (!IsDeleted()) {
+    MarkAsDeleted();
+  }
+}
+
+AsyncPixelTransfersCompletedQuery::~AsyncPixelTransfersCompletedQuery() {
+}
+
 class GetErrorQuery : public QueryManager::Query {
  public:
   GetErrorQuery(
       QueryManager* manager, GLenum target, int32 shm_id, uint32 shm_offset);
 
   virtual bool Begin() OVERRIDE;
   virtual bool End(uint32 submit_count) OVERRIDE;
   virtual bool Process() OVERRIDE;
   virtual void Destroy(bool have_context) OVERRIDE;
 
@@ skipping 66 matching lines @@
 QueryManager::Query* QueryManager::CreateQuery(
     GLenum target, GLuint client_id, int32 shm_id, uint32 shm_offset) {
   Query::Ref query;
   switch (target) {
     case GL_COMMANDS_ISSUED_CHROMIUM:
       query = new CommandsIssuedQuery(this, target, shm_id, shm_offset);
       break;
     case GL_LATENCY_QUERY_CHROMIUM:
       query = new CommandLatencyQuery(this, target, shm_id, shm_offset);
       break;
+    case GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM:
+      query = new AsyncPixelTransfersCompletedQuery(
+          this, target, shm_id, shm_offset);
+      break;
     case GL_GET_ERROR_QUERY_CHROMIUM:
       query = new GetErrorQuery(this, target, shm_id, shm_offset);
       break;
     default: {
       GLuint service_id = 0;
       glGenQueriesARB(1, &service_id);
       DCHECK_NE(0u, service_id);
       query = new AllSamplesPassedQuery(
           this, target, shm_id, shm_offset, service_id);
       break;
@@ skipping 162 matching lines @@
   if (!RemovePendingQuery(query)) {
     return false;
   }
   return query->End(submit_count);
 }
 
 }  // namespace gles2
 }  // namespace gpu