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13e143de38
This applies to callers that do not have full knowledge of the command list state, and thus, cannot restore it should allocations cause command list execution. Instead we reallocate a new buffer. Should not happen often enough for this to be a concern, as it's mainly for the utility classes.
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
// Copyright 2016 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <queue>
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struct ID3D12Resource;
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namespace DX12
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{
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class D3DStreamBuffer
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{
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public:
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D3DStreamBuffer(size_t initial_size, size_t max_size, bool* buffer_reallocation_notification);
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~D3DStreamBuffer();
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bool AllocateSpaceInBuffer(size_t allocation_size, size_t alignment, bool allow_execute = true);
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void OverrideSizeOfPreviousAllocation(size_t override_allocation_size);
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void* GetBaseCPUAddress() const;
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D3D12_GPU_VIRTUAL_ADDRESS GetBaseGPUAddress() const;
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ID3D12Resource* GetBuffer() const;
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void* GetCPUAddressOfCurrentAllocation() const;
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D3D12_GPU_VIRTUAL_ADDRESS GetGPUAddressOfCurrentAllocation() const;
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size_t GetOffsetOfCurrentAllocation() const;
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size_t GetSize() const;
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static void QueueFenceCallback(void* owning_object, UINT64 fence_value);
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private:
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void AllocateBuffer(size_t size);
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bool AttemptBufferResizeOrElseStall(size_t allocation_size, bool allow_execute);
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bool AttemptToAllocateOutOfExistingUnusedSpaceInBuffer(size_t allocation_size);
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bool AttemptToFindExistingFenceToStallOn(size_t allocation_size);
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void UpdateGPUProgress();
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void ClearFences();
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bool HasBufferOffsetChangedSinceLastFence() const;
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void QueueFence(UINT64 fence_value);
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struct FenceTrackingInformation
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{
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UINT64 fence_value;
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size_t buffer_offset;
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};
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std::queue<FenceTrackingInformation> m_queued_fences;
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ID3D12Fence* m_buffer_tracking_fence = nullptr;
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ID3D12Resource* m_buffer = nullptr;
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void* m_buffer_cpu_address = nullptr;
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D3D12_GPU_VIRTUAL_ADDRESS m_buffer_gpu_address = {};
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size_t m_buffer_current_allocation_offset = 0;
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size_t m_buffer_offset = 0;
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size_t m_buffer_size = 0;
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const size_t m_buffer_max_size = 0;
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size_t m_buffer_gpu_completion_offset = 0;
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bool* m_buffer_reallocation_notification = nullptr;
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};
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} |