1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/command_line.h" 6 #include "base/debug/trace_event.h" 7 #include "base/logging.h" 8 #include "ui/ozone/ozone_platform.h" 9 #include "ui/ozone/ozone_switches.h" 10 #include "ui/ozone/platform_object.h" 11 #include "ui/ozone/platform_selection.h" 12 13 namespace ui { 14 15 namespace { 16 17 bool g_platform_initialized_ui = false; 18 bool g_platform_initialized_gpu = false; 19 20 } 21 OzonePlatform()22OzonePlatform::OzonePlatform() { 23 CHECK(!instance_) << "There should only be a single OzonePlatform."; 24 instance_ = this; 25 g_platform_initialized_ui = false; 26 g_platform_initialized_gpu = false; 27 } 28 ~OzonePlatform()29OzonePlatform::~OzonePlatform() { 30 CHECK_EQ(instance_, this); 31 instance_ = NULL; 32 } 33 34 // static InitializeForUI()35void OzonePlatform::InitializeForUI() { 36 CreateInstance(); 37 if (g_platform_initialized_ui) 38 return; 39 g_platform_initialized_ui = true; 40 instance_->InitializeUI(); 41 } 42 43 // static InitializeForGPU()44void OzonePlatform::InitializeForGPU() { 45 CreateInstance(); 46 if (g_platform_initialized_gpu) 47 return; 48 g_platform_initialized_gpu = true; 49 instance_->InitializeGPU(); 50 } 51 52 // static GetInstance()53OzonePlatform* OzonePlatform::GetInstance() { 54 CHECK(instance_) << "OzonePlatform is not initialized"; 55 return instance_; 56 } 57 58 // static CreateInstance()59void OzonePlatform::CreateInstance() { 60 if (!instance_) { 61 TRACE_EVENT1("ozone", 62 "OzonePlatform::Initialize", 63 "platform", 64 GetOzonePlatformName()); 65 scoped_ptr<OzonePlatform> platform = 66 PlatformObject<OzonePlatform>::Create(); 67 68 // TODO(spang): Currently need to leak this object. 69 CHECK_EQ(instance_, platform.release()); 70 } 71 } 72 73 // static 74 OzonePlatform* OzonePlatform::instance_; 75 76 } // namespace ui 77