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#ifndef ANDROID_DVR_SERVICES_DISPLAYD_DISPLAY_SERVICE_H_
#define ANDROID_DVR_SERVICES_DISPLAYD_DISPLAY_SERVICE_H_
#include <dvr/dvr_api.h>
#include <pdx/service.h>
#include <pdx/status.h>
#include <private/dvr/buffer_hub_client.h>
#include <private/dvr/bufferhub_rpc.h>
#include <private/dvr/display_protocol.h>
#include <functional>
#include <iterator>
#include <memory>
#include <string>
#include <vector>
#include "acquired_buffer.h"
#include "display_surface.h"
#include "epoll_event_dispatcher.h"
#include "hardware_composer.h"
namespace android {
namespace dvr {
// DisplayService implements the display service component of VrFlinger.
class DisplayService : public pdx::ServiceBase<DisplayService> {
public:
bool IsInitialized() const override;
std::string DumpState(size_t max_length) override;
void OnChannelClose(pdx::Message& message,
const std::shared_ptr<pdx::Channel>& channel) override;
pdx::Status<void> HandleMessage(pdx::Message& message) override;
std::shared_ptr<DisplaySurface> GetDisplaySurface(int surface_id) const;
std::vector<std::shared_ptr<DisplaySurface>> GetDisplaySurfaces() const;
std::vector<std::shared_ptr<DirectDisplaySurface>> GetVisibleDisplaySurfaces()
const;
// Updates the list of actively displayed surfaces. This must be called after
// any change to client/manager attributes that affect visibility or z order.
void UpdateActiveDisplaySurfaces();
pdx::Status<BorrowedNativeBufferHandle> SetupGlobalBuffer(
DvrGlobalBufferKey key, size_t size, uint64_t usage);
pdx::Status<void> DeleteGlobalBuffer(DvrGlobalBufferKey key);
template <class A>
void ForEachDisplaySurface(SurfaceType surface_type, A action) const {
ForEachChannel([surface_type,
action](const ChannelIterator::value_type& pair) mutable {
auto surface = std::static_pointer_cast<DisplaySurface>(pair.second);
if (surface->surface_type() == surface_type)
action(surface);
});
}
using DisplayConfigurationUpdateNotifier = std::function<void(void)>;
void SetDisplayConfigurationUpdateNotifier(
DisplayConfigurationUpdateNotifier notifier);
using VSyncCallback = HardwareComposer::VSyncCallback;
void SetVSyncCallback(VSyncCallback callback) {
hardware_composer_.SetVSyncCallback(callback);
}
void GrantDisplayOwnership() { hardware_composer_.Enable(); }
void SeizeDisplayOwnership() { hardware_composer_.Disable(); }
void OnBootFinished() { hardware_composer_.OnBootFinished(); }
private:
friend BASE;
friend DisplaySurface;
friend class VrDisplayStateService;
using RequestDisplayCallback = std::function<void(bool)>;
DisplayService(android::Hwc2::Composer* hidl,
hwc2_display_t primary_display_id,
RequestDisplayCallback request_display_callback);
pdx::Status<BorrowedNativeBufferHandle> OnGetGlobalBuffer(
pdx::Message& message, DvrGlobalBufferKey key);
pdx::Status<display::Metrics> OnGetMetrics(pdx::Message& message);
pdx::Status<std::string> OnGetConfigurationData(
pdx::Message& message, display::ConfigFileType config_type);
pdx::Status<display::SurfaceInfo> OnCreateSurface(
pdx::Message& message, const display::SurfaceAttributes& attributes);
pdx::Status<BorrowedNativeBufferHandle> OnSetupGlobalBuffer(
pdx::Message& message, DvrGlobalBufferKey key, size_t size,
uint64_t usage);
pdx::Status<void> OnDeleteGlobalBuffer(pdx::Message& message,
DvrGlobalBufferKey key);
// Temporary query for current VR status. Will be removed later.
pdx::Status<bool> IsVrAppRunning(pdx::Message& message);
pdx::Status<void> AddEventHandler(int fd, int events,
EpollEventDispatcher::Handler handler) {
return dispatcher_.AddEventHandler(fd, events, handler);
}
pdx::Status<void> RemoveEventHandler(int fd) {
return dispatcher_.RemoveEventHandler(fd);
}
void SurfaceUpdated(SurfaceType surface_type,
display::SurfaceUpdateFlags update_flags);
// Called by DisplaySurface to signal that a surface property has changed and
// the display manager should be notified.
void NotifyDisplayConfigurationUpdate();
pdx::Status<void> HandleSurfaceMessage(pdx::Message& message);
HardwareComposer hardware_composer_;
EpollEventDispatcher dispatcher_;
DisplayConfigurationUpdateNotifier update_notifier_;
std::unordered_map<DvrGlobalBufferKey, std::unique_ptr<IonBuffer>>
global_buffers_;
DisplayService(const DisplayService&) = delete;
void operator=(const DisplayService&) = delete;
};
} // namespace dvr
} // namespace android
#endif // ANDROID_DVR_SERVICES_DISPLAYD_DISPLAY_SERVICE_H_