forked from suyu/suyu
141 lines
3.7 KiB
C++
141 lines
3.7 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 <condition_variable>
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#include <list>
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#include <mutex>
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#include <optional>
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#include <vector>
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#include "common/common_funcs.h"
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#include "common/math_util.h"
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#include "common/swap.h"
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#include "core/hle/kernel/k_event.h"
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#include "core/hle/kernel/k_readable_event.h"
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#include "core/hle/service/nvdrv/nvdata.h"
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namespace Kernel {
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class KernelCore;
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class KEvent;
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class KReadableEvent;
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class KWritableEvent;
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} // namespace Kernel
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namespace Service::NVFlinger {
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constexpr u32 buffer_slots = 0x40;
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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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u32_le offset;
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INSERT_PADDING_WORDS(60);
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};
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static_assert(sizeof(IGBPBuffer) == 0x16C, "IGBPBuffer has wrong size");
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class BufferQueue final {
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public:
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enum class QueryType {
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NativeWindowWidth = 0,
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NativeWindowHeight = 1,
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NativeWindowFormat = 2,
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};
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explicit BufferQueue(Kernel::KernelCore& kernel, u32 id, u64 layer_id);
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~BufferQueue();
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enum class BufferTransformFlags : u32 {
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/// No transform flags are set
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Unset = 0x00,
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/// Flip source image horizontally (around the vertical axis)
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FlipH = 0x01,
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/// Flip source image vertically (around the horizontal axis)
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FlipV = 0x02,
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/// Rotate source image 90 degrees clockwise
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Rotate90 = 0x04,
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/// Rotate source image 180 degrees
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Rotate180 = 0x03,
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/// Rotate source image 270 degrees clockwise
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Rotate270 = 0x07,
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};
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enum class PixelFormat : u32 {
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RGBA8888 = 1,
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RGBX8888 = 2,
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RGB888 = 3,
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RGB565 = 4,
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BGRA8888 = 5,
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RGBA5551 = 6,
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RRGBA4444 = 7,
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};
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struct Buffer {
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enum class Status { Free = 0, Queued = 1, Dequeued = 2, Acquired = 3 };
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u32 slot;
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Status status = Status::Free;
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IGBPBuffer igbp_buffer;
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BufferTransformFlags transform;
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Common::Rectangle<int> crop_rect;
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u32 swap_interval;
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Service::Nvidia::MultiFence multi_fence;
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};
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void SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer);
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std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> DequeueBuffer(u32 width,
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u32 height);
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const IGBPBuffer& RequestBuffer(u32 slot) const;
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void QueueBuffer(u32 slot, BufferTransformFlags transform,
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const Common::Rectangle<int>& crop_rect, u32 swap_interval,
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Service::Nvidia::MultiFence& multi_fence);
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void CancelBuffer(u32 slot, const Service::Nvidia::MultiFence& multi_fence);
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std::optional<std::reference_wrapper<const Buffer>> AcquireBuffer();
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void ReleaseBuffer(u32 slot);
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void Connect();
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void Disconnect();
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u32 Query(QueryType type);
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u32 GetId() const {
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return id;
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}
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bool IsConnected() const {
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return is_connect;
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}
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Kernel::KWritableEvent& GetWritableBufferWaitEvent();
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Kernel::KReadableEvent& GetBufferWaitEvent();
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private:
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BufferQueue(const BufferQueue&) = delete;
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u32 id{};
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u64 layer_id{};
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std::atomic_bool is_connect{};
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std::list<u32> free_buffers;
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std::array<Buffer, buffer_slots> buffers;
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std::list<u32> queue_sequence;
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Kernel::KEvent buffer_wait_event;
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std::mutex free_buffers_mutex;
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std::condition_variable free_buffers_condition;
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std::mutex queue_sequence_mutex;
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};
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} // namespace Service::NVFlinger
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