8d5d369b54
These are more closely related to the vi service as opposed to the
intermediary nvflinger.
This also places them in their relevant subfolder, as future changes to
these will likely result in subclassing to represent various displays
and services, as they're done within the service itself on hardware.
The reasoning for prefixing the display and layer source files is to
avoid potential clashing if two files with the same name are compiled
(e.g. if 'display.cpp/.h' or 'layer.cpp/.h' is added to another service
at any point), which MSVC will actually warn against. This prevents that
case from occurring.
This also presently coverts the std::array introduced within
f45c25aaba back to a std::vector to allow
the forward declaration of the Display type. Forward declaring a type
within a std::vector is allowed since the introduction of N4510
(http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4510.html) by
Zhihao Yuan.
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <memory>
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#include <optional>
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#include <string>
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#include <string_view>
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#include <vector>
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#include "common/common_types.h"
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#include "core/hle/kernel/object.h"
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namespace Core::Timing {
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class CoreTiming;
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struct EventType;
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} // namespace Core::Timing
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namespace Kernel {
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class ReadableEvent;
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class WritableEvent;
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} // namespace Kernel
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namespace Service::Nvidia {
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class Module;
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} // namespace Service::Nvidia
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namespace Service::VI {
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struct Display;
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struct Layer;
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} // namespace Service::VI
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namespace Service::NVFlinger {
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class BufferQueue;
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class NVFlinger final {
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public:
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explicit NVFlinger(Core::Timing::CoreTiming& core_timing);
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~NVFlinger();
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/// Sets the NVDrv module instance to use to send buffers to the GPU.
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void SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance);
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/// Opens the specified display and returns the ID.
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///
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/// If an invalid display name is provided, then an empty optional is returned.
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std::optional<u64> OpenDisplay(std::string_view name);
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/// Creates a layer on the specified display and returns the layer ID.
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///
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/// If an invalid display ID is specified, then an empty optional is returned.
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std::optional<u64> CreateLayer(u64 display_id);
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/// Finds the buffer queue ID of the specified layer in the specified display.
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///
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/// If an invalid display ID or layer ID is provided, then an empty optional is returned.
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std::optional<u32> FindBufferQueueId(u64 display_id, u64 layer_id) const;
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/// Gets the vsync event for the specified display.
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///
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/// If an invalid display ID is provided, then nullptr is returned.
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Kernel::SharedPtr<Kernel::ReadableEvent> FindVsyncEvent(u64 display_id) const;
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/// Obtains a buffer queue identified by the ID.
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std::shared_ptr<BufferQueue> FindBufferQueue(u32 id) const;
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/// Performs a composition request to the emulated nvidia GPU and triggers the vsync events when
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/// finished.
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void Compose();
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private:
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/// Finds the display identified by the specified ID.
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VI::Display* FindDisplay(u64 display_id);
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/// Finds the display identified by the specified ID.
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const VI::Display* FindDisplay(u64 display_id) const;
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/// Finds the layer identified by the specified ID in the desired display.
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VI::Layer* FindLayer(u64 display_id, u64 layer_id);
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/// Finds the layer identified by the specified ID in the desired display.
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const VI::Layer* FindLayer(u64 display_id, u64 layer_id) const;
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std::shared_ptr<Nvidia::Module> nvdrv;
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std::vector<VI::Display> displays;
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std::vector<std::shared_ptr<BufferQueue>> buffer_queues;
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/// Id to use for the next layer that is created, this counter is shared among all displays.
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u64 next_layer_id = 1;
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/// Id to use for the next buffer queue that is created, this counter is shared among all
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/// layers.
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u32 next_buffer_queue_id = 1;
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/// Event that handles screen composition.
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Core::Timing::EventType* composition_event;
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/// Core timing instance for registering/unregistering the composition event.
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Core::Timing::CoreTiming& core_timing;
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};
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} // namespace Service::NVFlinger
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