yuzu/src/core/hle/service/nvflinger/nvflinger.h
Fernando Sahmkow 5b5e60ffec GPU_Async: Correct fences, display events and more.
This commit uses guest fences on vSync event instead of an articial fake 
fence we had.
It also corrects to keep signaling display events while loading the game 
as the OS is suppose to send buffers to vSync during that time.
2019-10-04 19:59:48 -04:00

114 lines
3.3 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "common/common_types.h"
#include "core/hle/kernel/object.h"
namespace Core::Timing {
class CoreTiming;
struct EventType;
} // namespace Core::Timing
namespace Kernel {
class ReadableEvent;
class WritableEvent;
} // namespace Kernel
namespace Service::Nvidia {
class Module;
} // namespace Service::Nvidia
namespace Service::VI {
class Display;
class Layer;
} // namespace Service::VI
namespace Service::NVFlinger {
class BufferQueue;
class NVFlinger final {
public:
explicit NVFlinger(Core::System& system);
~NVFlinger();
/// Sets the NVDrv module instance to use to send buffers to the GPU.
void SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance);
/// Opens the specified display and returns the ID.
///
/// If an invalid display name is provided, then an empty optional is returned.
std::optional<u64> OpenDisplay(std::string_view name);
/// Creates a layer on the specified display and returns the layer ID.
///
/// If an invalid display ID is specified, then an empty optional is returned.
std::optional<u64> CreateLayer(u64 display_id);
/// Finds the buffer queue ID of the specified layer in the specified display.
///
/// If an invalid display ID or layer ID is provided, then an empty optional is returned.
std::optional<u32> FindBufferQueueId(u64 display_id, u64 layer_id) const;
/// Gets the vsync event for the specified display.
///
/// If an invalid display ID is provided, then nullptr is returned.
Kernel::SharedPtr<Kernel::ReadableEvent> FindVsyncEvent(u64 display_id) const;
/// Obtains a buffer queue identified by the ID.
BufferQueue& FindBufferQueue(u32 id);
/// Obtains a buffer queue identified by the ID.
const BufferQueue& FindBufferQueue(u32 id) const;
/// Performs a composition request to the emulated nvidia GPU and triggers the vsync events when
/// finished.
void Compose();
s64 GetNextTicks() const;
private:
/// Finds the display identified by the specified ID.
VI::Display* FindDisplay(u64 display_id);
/// Finds the display identified by the specified ID.
const VI::Display* FindDisplay(u64 display_id) const;
/// Finds the layer identified by the specified ID in the desired display.
VI::Layer* FindLayer(u64 display_id, u64 layer_id);
/// Finds the layer identified by the specified ID in the desired display.
const VI::Layer* FindLayer(u64 display_id, u64 layer_id) const;
std::shared_ptr<Nvidia::Module> nvdrv;
std::vector<VI::Display> displays;
std::vector<BufferQueue> buffer_queues;
/// Id to use for the next layer that is created, this counter is shared among all displays.
u64 next_layer_id = 1;
/// Id to use for the next buffer queue that is created, this counter is shared among all
/// layers.
u32 next_buffer_queue_id = 1;
u32 swap_interval = 1;
bool first_buffer_enqueued{};
/// Event that handles screen composition.
Core::Timing::EventType* composition_event;
Core::System& system;
};
} // namespace Service::NVFlinger