130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
// Copyright 2018 Citra Emulator Project
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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 "core/hle/kernel/event.h"
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#include "core/hle/service/service.h"
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namespace Service {
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namespace VI {
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struct IGBPBuffer {
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u32_le magic;
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u32_le width;
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u32_le height;
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u32_le stride;
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u32_le format;
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u32_le usage;
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INSERT_PADDING_WORDS(1);
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u32_le index;
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INSERT_PADDING_WORDS(3);
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u32_le gpu_buffer_id;
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INSERT_PADDING_WORDS(17);
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u32_le nvmap_handle;
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INSERT_PADDING_WORDS(61);
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};
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static_assert(sizeof(IGBPBuffer) == 0x16C, "IGBPBuffer has wrong size");
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class BufferQueue {
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public:
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BufferQueue(u32 id, u64 layer_id);
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~BufferQueue() = default;
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void SetPreallocatedBuffer(u32 slot, IGBPBuffer& buffer);
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u32 DequeueBuffer(u32 pixel_format, u32 width, u32 height);
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const IGBPBuffer& RequestBuffer(u32 slot) const;
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void QueueBuffer(u32 slot);
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u32 GetId() const { return id; }
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private:
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u32 id;
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u64 layer_id;
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struct Buffer {
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enum class Status { None = 0, Queued = 1, Dequeued = 2 };
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u32 slot;
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Status status = Status::None;
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IGBPBuffer igbp_buffer;
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};
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std::vector<Buffer> queue;
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};
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struct Layer {
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Layer(u64 id, std::shared_ptr<BufferQueue> queue);
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~Layer() = default;
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u64 id;
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std::shared_ptr<BufferQueue> buffer_queue;
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};
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struct Display {
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std::string name;
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u64 id;
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std::vector<Layer> layers;
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};
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class NVFlinger {
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public:
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NVFlinger();
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~NVFlinger() = default;
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/// Opens the specified display and returns the id.
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u64 OpenDisplay(const std::string& name);
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/// Creates a layer on the specified display and returns the layer id.
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u64 CreateLayer(u64 display_id);
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/// Gets the buffer queue id of the specified layer in the specified display.
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u32 GetBufferQueueId(u64 display_id, u64 layer_id);
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/// Obtains a buffer queue identified by the id.
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std::shared_ptr<BufferQueue> GetBufferQueue(u32 id);
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private:
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/// Returns the display identified by the specified id.
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Display& GetDisplay(u64 display_id);
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/// Returns the layer identified by the specified id in the desired display.
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Layer& GetLayer(u64 display_id, u64 layer_id);
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std::vector<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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};
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class IApplicationDisplayService final : public ServiceFramework<IApplicationDisplayService> {
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public:
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IApplicationDisplayService(std::shared_ptr<NVFlinger> nv_flinger);
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~IApplicationDisplayService() = default;
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private:
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void GetRelayService(Kernel::HLERequestContext& ctx);
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void GetSystemDisplayService(Kernel::HLERequestContext& ctx);
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void GetManagerDisplayService(Kernel::HLERequestContext& ctx);
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void OpenDisplay(Kernel::HLERequestContext& ctx);
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void SetLayerScalingMode(Kernel::HLERequestContext& ctx);
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void OpenLayer(Kernel::HLERequestContext& ctx);
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void GetDisplayVsyncEvent(Kernel::HLERequestContext& ctx);
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Kernel::SharedPtr<Kernel::Event> vsync_event;
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std::shared_ptr<NVFlinger> nv_flinger;
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};
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/// Registers all VI services with the specified service manager.
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void InstallInterfaces(SM::ServiceManager& service_manager);
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} // namespace VI
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} // namespace Service
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