Revert of ozone: Remove the "drm" software composited platform

ui/ozone/platform/drm/ozone_platform_drm.cc

+// Copyright 2013 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 "ui/ozone/platform/drm/ozone_platform_drm.h"
+
+#include "base/at_exit.h"
+#include "base/thread_task_runner_handle.h"
+#include "ui/base/cursor/ozone/bitmap_cursor_factory_ozone.h"
+#include "ui/events/ozone/device/device_manager.h"
+#include "ui/events/ozone/evdev/cursor_delegate_evdev.h"
+#include "ui/events/ozone/evdev/event_factory_evdev.h"
+#include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
+#include "ui/ozone/platform/drm/common/drm_util.h"
+#include "ui/ozone/platform/drm/gpu/drm_buffer.h"
+#include "ui/ozone/platform/drm/gpu/drm_device.h"
+#include "ui/ozone/platform/drm/gpu/drm_device_generator.h"
+#include "ui/ozone/platform/drm/gpu/drm_device_manager.h"
+#include "ui/ozone/platform/drm/gpu/drm_gpu_display_manager.h"
+#include "ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h"
+#include "ui/ozone/platform/drm/gpu/drm_surface_factory.h"
+#include "ui/ozone/platform/drm/gpu/drm_window.h"
+#include "ui/ozone/platform/drm/gpu/screen_manager.h"
+#include "ui/ozone/platform/drm/host/drm_cursor.h"
+#include "ui/ozone/platform/drm/host/drm_display_host_manager.h"
+#include "ui/ozone/platform/drm/host/drm_gpu_platform_support_host.h"
+#include "ui/ozone/platform/drm/host/drm_native_display_delegate.h"
+#include "ui/ozone/platform/drm/host/drm_overlay_manager.h"
+#include "ui/ozone/platform/drm/host/drm_window_host.h"
+#include "ui/ozone/platform/drm/host/drm_window_host_manager.h"
+#include "ui/ozone/public/ozone_gpu_test_helper.h"
+#include "ui/ozone/public/ozone_platform.h"
+
+#if defined(USE_XKBCOMMON)
+#include "ui/events/ozone/layout/xkb/xkb_evdev_codes.h"
+#include "ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.h"
+#else
+#include "ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h"
+#endif
+
+namespace ui {
+
+namespace {
+
+// OzonePlatform for Linux DRM (Direct Rendering Manager)
+//
+// This platform is Linux without any display server (no X, wayland, or
+// anything). This means chrome alone owns the display and input devices.
+class OzonePlatformDrm : public OzonePlatform {
+ public:
+  OzonePlatformDrm()
+      : buffer_generator_(new DrmBufferGenerator()),
+        screen_manager_(new ScreenManager(buffer_generator_.get())),
+        device_manager_(CreateDeviceManager()) {}
+  ~OzonePlatformDrm() override {}
+
+  // OzonePlatform:
+  ui::SurfaceFactoryOzone* GetSurfaceFactoryOzone() override {
+    return surface_factory_ozone_.get();
+  }
+  OverlayManagerOzone* GetOverlayManager() override {
+    return overlay_manager_.get();
+  }
+  CursorFactoryOzone* GetCursorFactoryOzone() override {
+    return cursor_factory_ozone_.get();
+  }
+  InputController* GetInputController() override {
+    return event_factory_ozone_->input_controller();
+  }
+  GpuPlatformSupport* GetGpuPlatformSupport() override {
+    return gpu_platform_support_.get();
+  }
+  GpuPlatformSupportHost* GetGpuPlatformSupportHost() override {
+    return gpu_platform_support_host_.get();
+  }
+  scoped_ptr<SystemInputInjector> CreateSystemInputInjector() override {
+    return event_factory_ozone_->CreateSystemInputInjector();
+  }
+  scoped_ptr<PlatformWindow> CreatePlatformWindow(
+      PlatformWindowDelegate* delegate,
+      const gfx::Rect& bounds) override {
+    scoped_ptr<DrmWindowHost> platform_window(
+        new DrmWindowHost(delegate, bounds, gpu_platform_support_host_.get(),
+                          event_factory_ozone_.get(), cursor_.get(),
+                          window_manager_.get(), display_manager_.get()));
+    platform_window->Initialize();
+    return platform_window.Pass();
+  }
+  scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
+    return make_scoped_ptr(
+        new DrmNativeDisplayDelegate(display_manager_.get()));
+  }
+  base::ScopedFD OpenClientNativePixmapDevice() const override {
+    return base::ScopedFD();
+  }
+  void InitializeUI() override {
+    drm_device_manager_.reset(new DrmDeviceManager(
+        scoped_ptr<DrmDeviceGenerator>(new DrmDeviceGenerator())));
+    window_manager_.reset(new DrmWindowHostManager());
+    cursor_.reset(new DrmCursor(window_manager_.get()));
+#if defined(USE_XKBCOMMON)
+    KeyboardLayoutEngineManager::SetKeyboardLayoutEngine(make_scoped_ptr(
+        new XkbKeyboardLayoutEngine(xkb_evdev_code_converter_)));
+#else
+    KeyboardLayoutEngineManager::SetKeyboardLayoutEngine(
+        make_scoped_ptr(new StubKeyboardLayoutEngine()));
+#endif
+    event_factory_ozone_.reset(new EventFactoryEvdev(
+        cursor_.get(), device_manager_.get(),
+        KeyboardLayoutEngineManager::GetKeyboardLayoutEngine()));
+    overlay_manager_.reset(new DrmOverlayManager(false, nullptr));
+    surface_factory_ozone_.reset(new DrmSurfaceFactory(screen_manager_.get()));
+    scoped_ptr<DrmGpuDisplayManager> display_manager(new DrmGpuDisplayManager(
+        screen_manager_.get(), drm_device_manager_.get()));
+    gpu_platform_support_.reset(new DrmGpuPlatformSupport(
+        drm_device_manager_.get(), screen_manager_.get(),
+        buffer_generator_.get(), display_manager.Pass()));
+    gpu_platform_support_host_.reset(
+        new DrmGpuPlatformSupportHost(cursor_.get()));
+    display_manager_.reset(new DrmDisplayHostManager(
+        gpu_platform_support_host_.get(), device_manager_.get(),
+        event_factory_ozone_->input_controller()));
+    cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);
+
+    if (!gpu_helper_.Initialize(base::ThreadTaskRunnerHandle::Get(),
+                                base::ThreadTaskRunnerHandle::Get()))
+      LOG(FATAL) << "Failed to initialize dummy channel.";
+  }
+
+  void InitializeGPU() override {}
+
+ private:
+  // Objects in the "GPU" process.
+  scoped_ptr<DrmDeviceManager> drm_device_manager_;
+  scoped_ptr<DrmBufferGenerator> buffer_generator_;
+  scoped_ptr<ScreenManager> screen_manager_;
+  scoped_ptr<DrmGpuPlatformSupport> gpu_platform_support_;
+
+  // Objects in the "Browser" process.
+  scoped_ptr<OverlayManagerOzone> overlay_manager_;
+  scoped_ptr<DeviceManager> device_manager_;
+  scoped_ptr<BitmapCursorFactoryOzone> cursor_factory_ozone_;
+  scoped_ptr<DrmWindowHostManager> window_manager_;
+  scoped_ptr<DrmCursor> cursor_;
+  scoped_ptr<EventFactoryEvdev> event_factory_ozone_;
+  scoped_ptr<DrmGpuPlatformSupportHost> gpu_platform_support_host_;
+  scoped_ptr<DrmDisplayHostManager> display_manager_;
+
+#if defined(USE_XKBCOMMON)
+  XkbEvdevCodes xkb_evdev_code_converter_;
+#endif
+
+  // Objects on both processes.
+  scoped_ptr<DrmSurfaceFactory> surface_factory_ozone_;
+
+  OzoneGpuTestHelper gpu_helper_;
+
+  DISALLOW_COPY_AND_ASSIGN(OzonePlatformDrm);
+};
+
+}  // namespace
+
+OzonePlatform* CreateOzonePlatformDri() {
+  return new OzonePlatformDrm;
+}
+
+OzonePlatform* CreateOzonePlatformDrm() {
+  return new OzonePlatformDrm;
+}
+
+}  // namespace ui