src/ui/ozone/platform/dri/ozone_platform_gbm.cc

   1 // Copyright 2014 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 "ui/ozone/platform/dri/ozone_platform_gbm.h"
   6
   7 #include <dlfcn.h>
   8 #include <gbm.h>
   9 #include <stdlib.h>
  10
  11 #include "base/at_exit.h"
  12 #include "base/command_line.h"
  13 #include "ui/base/cursor/ozone/bitmap_cursor_factory_ozone.h"
  14 #include "ui/events/ozone/device/device_manager.h"
  15 #include "ui/events/ozone/evdev/event_factory_evdev.h"
  16 #include "ui/ozone/platform/dri/dri_cursor.h"
  17 #include "ui/ozone/platform/dri/dri_gpu_platform_support.h"
  18 #include "ui/ozone/platform/dri/dri_gpu_platform_support_host.h"
  19 #include "ui/ozone/platform/dri/dri_window.h"
  20 #include "ui/ozone/platform/dri/dri_window_delegate_manager.h"
  21 #include "ui/ozone/platform/dri/dri_window_manager.h"
  22 #include "ui/ozone/platform/dri/dri_wrapper.h"
  23 #include "ui/ozone/platform/dri/gbm_buffer.h"
  24 #include "ui/ozone/platform/dri/gbm_surface.h"
  25 #include "ui/ozone/platform/dri/gbm_surface_factory.h"
  26 #include "ui/ozone/platform/dri/native_display_delegate_dri.h"
  27 #include "ui/ozone/platform/dri/native_display_delegate_proxy.h"
  28 #include "ui/ozone/platform/dri/scanout_buffer.h"
  29 #include "ui/ozone/platform/dri/screen_manager.h"
  30 #include "ui/ozone/public/cursor_factory_ozone.h"
  31 #include "ui/ozone/public/gpu_platform_support.h"
  32 #include "ui/ozone/public/gpu_platform_support_host.h"
  33 #include "ui/ozone/public/ozone_platform.h"
  34 #include "ui/ozone/public/ozone_switches.h"
  35
  36 namespace ui {
  37
  38 namespace {
  39
  40 const char kDefaultGraphicsCardPath[] = "/dev/dri/card0";
  41
  42 class GbmBufferGenerator : public ScanoutBufferGenerator {
  43  public:
  44   GbmBufferGenerator(DriWrapper* dri)
  45       : dri_(dri),
  46         glapi_lib_(dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL)),
  47         device_(gbm_create_device(dri_->get_fd())) {
  48     if (!device_)
  49       LOG(FATAL) << "Unable to initialize gbm for " << kDefaultGraphicsCardPath;
  50   }
  51   virtual ~GbmBufferGenerator() {
  52     gbm_device_destroy(device_);
  53     if (glapi_lib_)
  54       dlclose(glapi_lib_);
  55   }
  56
  57   gbm_device* device() const { return device_; }
  58
  59   scoped_refptr<ScanoutBuffer> Create(const gfx::Size& size) override {
  60     return GbmBuffer::CreateBuffer(
  61         dri_, device_, SurfaceFactoryOzone::RGBA_8888, size, true);
  62   }
  63
  64  protected:
  65   DriWrapper* dri_;  // Not owned.
  66
  67   // HACK: gbm drivers have broken linkage
  68   void *glapi_lib_;
  69
  70   gbm_device* device_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(GbmBufferGenerator);
  73 };
  74
  75 class OzonePlatformGbm : public OzonePlatform {
  76  public:
  77   OzonePlatformGbm(bool use_surfaceless) : use_surfaceless_(use_surfaceless) {
  78     base::AtExitManager::RegisterTask(
  79         base::Bind(&base::DeletePointer<OzonePlatformGbm>, this));
  80   }
  81   ~OzonePlatformGbm() override {}
  82
  83   // OzonePlatform:
  84   ui::SurfaceFactoryOzone* GetSurfaceFactoryOzone() override {
  85     return surface_factory_ozone_.get();
  86   }
  87   CursorFactoryOzone* GetCursorFactoryOzone() override {
  88     return cursor_factory_ozone_.get();
  89   }
  90   GpuPlatformSupport* GetGpuPlatformSupport() override {
  91     return gpu_platform_support_.get();
  92   }
  93   GpuPlatformSupportHost* GetGpuPlatformSupportHost() override {
  94     return gpu_platform_support_host_.get();
  95   }
  96   scoped_ptr<PlatformWindow> CreatePlatformWindow(
  97       PlatformWindowDelegate* delegate,
  98       const gfx::Rect& bounds) override {
  99     scoped_ptr<DriWindow> platform_window(
 100         new DriWindow(delegate, bounds, gpu_platform_support_host_.get(),
 101                       event_factory_ozone_.get(), window_manager_.get()));
 102     platform_window->Initialize();
 103     return platform_window.Pass();
 104   }
 105   scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
 106     return scoped_ptr<NativeDisplayDelegate>(new NativeDisplayDelegateProxy(
 107         gpu_platform_support_host_.get(), device_manager_.get()));
 108   }
 109   void InitializeUI() override {
 110     // Needed since the browser process creates the accelerated widgets and that
 111     // happens through SFO.
 112     surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
 113     device_manager_ = CreateDeviceManager();
 114     gpu_platform_support_host_.reset(new DriGpuPlatformSupportHost());
 115     cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);
 116     window_manager_.reset(
 117         new DriWindowManager(gpu_platform_support_host_.get()));
 118     event_factory_ozone_.reset(new EventFactoryEvdev(window_manager_->cursor(),
 119                                                      device_manager_.get()));
 120   }
 121
 122   void InitializeGPU() override {
 123     dri_.reset(new DriWrapper(kDefaultGraphicsCardPath));
 124     dri_->Initialize();
 125     buffer_generator_.reset(new GbmBufferGenerator(dri_.get()));
 126     screen_manager_.reset(new ScreenManager(dri_.get(),
 127                                             buffer_generator_.get()));
 128     window_delegate_manager_.reset(new DriWindowDelegateManager());
 129     if (!surface_factory_ozone_)
 130       surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
 131
 132     surface_factory_ozone_->InitializeGpu(
 133         dri_.get(), buffer_generator_->device(), screen_manager_.get(),
 134         window_delegate_manager_.get());
 135     gpu_platform_support_.reset(new DriGpuPlatformSupport(
 136         surface_factory_ozone_.get(), window_delegate_manager_.get(),
 137         screen_manager_.get(),
 138         scoped_ptr<NativeDisplayDelegateDri>(new NativeDisplayDelegateDri(
 139             dri_.get(), screen_manager_.get(), NULL))));
 140     if (surface_factory_ozone_->InitializeHardware() !=
 141         DriSurfaceFactory::INITIALIZED)
 142       LOG(FATAL) << "failed to initialize display hardware";
 143   }
 144
 145  private:
 146   bool use_surfaceless_;
 147   scoped_ptr<DriWrapper> dri_;
 148   scoped_ptr<GbmBufferGenerator> buffer_generator_;
 149   scoped_ptr<ScreenManager> screen_manager_;
 150   scoped_ptr<DeviceManager> device_manager_;
 151
 152   scoped_ptr<GbmSurfaceFactory> surface_factory_ozone_;
 153   scoped_ptr<BitmapCursorFactoryOzone> cursor_factory_ozone_;
 154   scoped_ptr<EventFactoryEvdev> event_factory_ozone_;
 155
 156   scoped_ptr<DriGpuPlatformSupport> gpu_platform_support_;
 157   scoped_ptr<DriGpuPlatformSupportHost> gpu_platform_support_host_;
 158
 159   scoped_ptr<DriWindowDelegateManager> window_delegate_manager_;
 160   // Browser side object only.
 161   scoped_ptr<DriWindowManager> window_manager_;
 162
 163   DISALLOW_COPY_AND_ASSIGN(OzonePlatformGbm);
 164 };
 165
 166 }  // namespace
 167
 168 OzonePlatform* CreateOzonePlatformGbm() {
 169   CommandLine* cmd = CommandLine::ForCurrentProcess();
 170   return new OzonePlatformGbm(cmd->HasSwitch(switches::kOzoneUseSurfaceless));
 171 }
 172
 173 }  // namespace ui