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// Copyright 2014 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_gbm.h"
#include <dlfcn.h>
#include <gbm.h>
#include <stdlib.h>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "ui/base/cursor/ozone/bitmap_cursor_factory_ozone.h"
#include "ui/events/ozone/device/device_manager.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_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/gbm_buffer.h"
#include "ui/ozone/platform/drm/gpu/gbm_device.h"
#include "ui/ozone/platform/drm/gpu/gbm_surface.h"
#include "ui/ozone/platform/drm/gpu/gbm_surface_factory.h"
#include "ui/ozone/platform/drm/gpu/scanout_buffer.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/cursor_factory_ozone.h"
#include "ui/ozone/public/gpu_platform_support.h"
#include "ui/ozone/public/gpu_platform_support_host.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/ozone_switches.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 {
class GlApiLoader {
public:
GlApiLoader()
: glapi_lib_(dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL)) {}
~GlApiLoader() {
if (glapi_lib_)
dlclose(glapi_lib_);
}
private:
// HACK: gbm drivers have broken linkage. The Mesa DRI driver references
// symbols in the libglapi library however it does not explicitly link against
// it. That caused linkage errors when running an application that does not
// explicitly link against libglapi.
void* glapi_lib_;
DISALLOW_COPY_AND_ASSIGN(GlApiLoader);
};
class GbmBufferGenerator : public ScanoutBufferGenerator {
public:
GbmBufferGenerator() {}
~GbmBufferGenerator() override {}
// ScanoutBufferGenerator:
scoped_refptr<ScanoutBuffer> Create(const scoped_refptr<DrmDevice>& drm,
const gfx::Size& size) override {
scoped_refptr<GbmDevice> gbm(static_cast<GbmDevice*>(drm.get()));
return GbmBuffer::CreateBuffer(gbm, SurfaceFactoryOzone::BGRA_8888, size,
true);
}
protected:
DISALLOW_COPY_AND_ASSIGN(GbmBufferGenerator);
};
class GbmDeviceGenerator : public DrmDeviceGenerator {
public:
GbmDeviceGenerator(bool use_atomic) : use_atomic_(use_atomic) {}
~GbmDeviceGenerator() override {}
// DrmDeviceGenerator:
scoped_refptr<DrmDevice> CreateDevice(const base::FilePath& path,
base::File file) override {
scoped_refptr<DrmDevice> drm = new GbmDevice(path, file.Pass());
if (drm->Initialize(use_atomic_))
return drm;
return nullptr;
}
private:
bool use_atomic_;
DISALLOW_COPY_AND_ASSIGN(GbmDeviceGenerator);
};
class OzonePlatformGbm : public OzonePlatform {
public:
OzonePlatformGbm(bool use_surfaceless) : use_surfaceless_(use_surfaceless) {}
~OzonePlatformGbm() 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()));
}
void InitializeUI() override {
device_manager_ = CreateDeviceManager();
window_manager_.reset(new DrmWindowHostManager());
cursor_.reset(new DrmCursor(window_manager_.get()));
gpu_platform_support_host_.reset(
new DrmGpuPlatformSupportHost(cursor_.get()));
display_manager_.reset(new DrmDisplayHostManager(
gpu_platform_support_host_.get(), device_manager_.get()));
cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);
overlay_manager_.reset(new DrmOverlayManager(use_surfaceless_));
#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()));
}
void InitializeGPU() override {
bool use_atomic = false;
gl_api_loader_.reset(new GlApiLoader());
drm_device_manager_.reset(new DrmDeviceManager(
scoped_ptr<DrmDeviceGenerator>(new GbmDeviceGenerator(use_atomic))));
buffer_generator_.reset(new GbmBufferGenerator());
screen_manager_.reset(new ScreenManager(buffer_generator_.get()));
surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
surface_factory_ozone_->InitializeGpu(drm_device_manager_.get(),
screen_manager_.get());
scoped_ptr<DrmGpuDisplayManager> ndd(new DrmGpuDisplayManager(
screen_manager_.get(), drm_device_manager_.get()));
gpu_platform_support_.reset(new DrmGpuPlatformSupport(
drm_device_manager_.get(), screen_manager_.get(), ndd.Pass()));
}
private:
// Objects in both processes.
bool use_surfaceless_;
// Objects in the GPU process.
scoped_ptr<GbmSurfaceFactory> surface_factory_ozone_;
scoped_ptr<GlApiLoader> gl_api_loader_;
scoped_ptr<DrmDeviceManager> drm_device_manager_;
scoped_ptr<GbmBufferGenerator> buffer_generator_;
scoped_ptr<ScreenManager> screen_manager_;
scoped_ptr<DrmGpuPlatformSupport> gpu_platform_support_;
// Objects in the Browser process.
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_;
scoped_ptr<DrmOverlayManager> overlay_manager_;
#if defined(USE_XKBCOMMON)
XkbEvdevCodes xkb_evdev_code_converter_;
#endif
DISALLOW_COPY_AND_ASSIGN(OzonePlatformGbm);
};
} // namespace
OzonePlatform* CreateOzonePlatformGbm() {
base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
#if defined(USE_MESA_PLATFORM_NULL)
// Only works with surfaceless.
cmd->AppendSwitch(switches::kOzoneUseSurfaceless);
#endif
return new OzonePlatformGbm(cmd->HasSwitch(switches::kOzoneUseSurfaceless));
}
} // namespace ui
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