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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <memory>
#include <string>
#include <vector>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/hle/result.h"
namespace Kernel {
class KEvent;
}
namespace Service::android {
class BufferQueueProducer;
}
namespace Service::KernelHelpers {
class ServiceContext;
}
namespace Service::Nvnflinger {
class HosBinderDriverServer;
}
namespace Service::Nvidia::NvCore {
class Container;
class NvMap;
} // namespace Service::Nvidia::NvCore
namespace Service::VI {
class Layer;
/// Represents a single display type
class Display {
public:
YUZU_NON_COPYABLE(Display);
YUZU_NON_MOVEABLE(Display);
/// Constructs a display with a given unique ID and name.
///
/// @param id The unique ID for this display.
/// @param hos_binder_driver_server_ Nvnflinger HOSBinderDriver server instance.
/// @param service_context_ The ServiceContext for the owning service.
/// @param name_ The name for this display.
/// @param system_ The global system instance.
///
Display(u64 id, std::string name_, Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_,
KernelHelpers::ServiceContext& service_context_, Core::System& system_);
~Display();
/// Gets the unique ID assigned to this display.
u64 GetID() const {
return display_id;
}
/// Gets the name of this display
const std::string& GetName() const {
return name;
}
/// Whether or not this display has any layers added to it.
bool HasLayers() const {
return GetNumLayers() > 0;
}
/// Gets a layer for this display based off an index.
Layer& GetLayer(std::size_t index);
std::size_t GetNumLayers() const;
/**
* Gets the internal vsync event.
*
* @returns The internal Vsync event if it has not yet been retrieved,
* VI::ResultPermissionDenied otherwise.
*/
[[nodiscard]] Result GetVSyncEvent(Kernel::KReadableEvent** out_vsync_event);
/// Gets the internal vsync event.
Kernel::KReadableEvent* GetVSyncEventUnchecked();
/// Signals the internal vsync event.
void SignalVSyncEvent();
/// Creates and adds a layer to this display with the given ID.
///
/// @param layer_id The ID to assign to the created layer.
/// @param binder_id The ID assigned to the buffer queue.
///
void CreateLayer(u64 layer_id, u32 binder_id, Service::Nvidia::NvCore::Container& core);
/// Removes a layer from this display with the given ID.
///
/// @param layer_id The ID assigned to the layer to destroy.
///
void DestroyLayer(u64 layer_id);
/// Resets the display for a new connection.
void Reset() {
layers.clear();
got_vsync_event = false;
}
/// Attempts to find a layer with the given ID.
///
/// @param layer_id The layer ID.
///
/// @returns If found, the Layer instance with the given ID.
/// If not found, then nullptr is returned.
///
Layer* FindLayer(u64 layer_id);
/// Attempts to find a layer with the given ID.
///
/// @param layer_id The layer ID.
///
/// @returns If found, the Layer instance with the given ID.
/// If not found, then nullptr is returned.
///
const Layer* FindLayer(u64 layer_id) const;
private:
u64 display_id;
std::string name;
Nvnflinger::HosBinderDriverServer& hos_binder_driver_server;
KernelHelpers::ServiceContext& service_context;
std::vector<std::unique_ptr<Layer>> layers;
Kernel::KEvent* vsync_event{};
bool got_vsync_event{false};
};
} // namespace Service::VI
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