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// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <boost/optional.hpp>
#include "core/hle/kernel/event.h"
#include "core/hle/service/service.h"
namespace CoreTiming {
struct EventType;
}
namespace Service {
namespace VI {
struct IGBPBuffer {
u32_le magic;
u32_le width;
u32_le height;
u32_le stride;
u32_le format;
u32_le usage;
INSERT_PADDING_WORDS(1);
u32_le index;
INSERT_PADDING_WORDS(3);
u32_le gpu_buffer_id;
INSERT_PADDING_WORDS(17);
u32_le nvmap_handle;
u32_le offset;
INSERT_PADDING_WORDS(60);
};
static_assert(sizeof(IGBPBuffer) == 0x16C, "IGBPBuffer has wrong size");
class BufferQueue {
public:
BufferQueue(u32 id, u64 layer_id);
~BufferQueue() = default;
struct Buffer {
enum class Status { Free = 0, Queued = 1, Dequeued = 2, Acquired = 3 };
u32 slot;
Status status = Status::Free;
IGBPBuffer igbp_buffer;
};
void SetPreallocatedBuffer(u32 slot, IGBPBuffer& buffer);
u32 DequeueBuffer(u32 pixel_format, u32 width, u32 height);
const IGBPBuffer& RequestBuffer(u32 slot) const;
void QueueBuffer(u32 slot);
boost::optional<const Buffer&> AcquireBuffer();
void ReleaseBuffer(u32 slot);
u32 GetId() const {
return id;
}
private:
u32 id;
u64 layer_id;
std::vector<Buffer> queue;
};
struct Layer {
Layer(u64 id, std::shared_ptr<BufferQueue> queue);
~Layer() = default;
u64 id;
std::shared_ptr<BufferQueue> buffer_queue;
};
struct Display {
Display(u64 id, std::string name);
~Display() = default;
u64 id;
std::string name;
std::vector<Layer> layers;
Kernel::SharedPtr<Kernel::Event> vsync_event;
};
class NVFlinger {
public:
NVFlinger();
~NVFlinger();
/// Opens the specified display and returns the id.
u64 OpenDisplay(const std::string& name);
/// Creates a layer on the specified display and returns the layer id.
u64 CreateLayer(u64 display_id);
/// Gets the buffer queue id of the specified layer in the specified display.
u32 GetBufferQueueId(u64 display_id, u64 layer_id);
/// Gets the vsync event for the specified display.
Kernel::SharedPtr<Kernel::Event> GetVsyncEvent(u64 display_id);
/// Obtains a buffer queue identified by the id.
std::shared_ptr<BufferQueue> GetBufferQueue(u32 id) const;
/// Performs a composition request to the emulated nvidia GPU and triggers the vsync events when
/// finished.
void Compose();
private:
/// Returns the display identified by the specified id.
Display& GetDisplay(u64 display_id);
/// Returns the layer identified by the specified id in the desired display.
Layer& GetLayer(u64 display_id, u64 layer_id);
std::vector<Display> displays;
std::vector<std::shared_ptr<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;
/// CoreTiming event that handles screen composition.
CoreTiming::EventType* composition_event;
};
class IApplicationDisplayService final : public ServiceFramework<IApplicationDisplayService> {
public:
IApplicationDisplayService(std::shared_ptr<NVFlinger> nv_flinger);
~IApplicationDisplayService() = default;
private:
void GetRelayService(Kernel::HLERequestContext& ctx);
void GetSystemDisplayService(Kernel::HLERequestContext& ctx);
void GetManagerDisplayService(Kernel::HLERequestContext& ctx);
void OpenDisplay(Kernel::HLERequestContext& ctx);
void SetLayerScalingMode(Kernel::HLERequestContext& ctx);
void OpenLayer(Kernel::HLERequestContext& ctx);
void GetDisplayVsyncEvent(Kernel::HLERequestContext& ctx);
std::shared_ptr<NVFlinger> nv_flinger;
};
/// Registers all VI services with the specified service manager.
void InstallInterfaces(SM::ServiceManager& service_manager);
} // namespace VI
} // namespace Service
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