mirror of https://github.com/PCSX2/pcsx2.git
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2021 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "common/Pcsx2Defs.h"
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#include "common/Vulkan/Loader.h"
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#include "vk_mem_alloc.h"
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#include <deque>
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#include <memory>
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namespace Vulkan
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{
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class StreamBuffer
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{
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public:
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StreamBuffer();
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StreamBuffer(StreamBuffer&& move);
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StreamBuffer(const StreamBuffer&) = delete;
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~StreamBuffer();
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StreamBuffer& operator=(StreamBuffer&& move);
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StreamBuffer& operator=(const StreamBuffer&) = delete;
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__fi bool IsValid() const { return (m_buffer != VK_NULL_HANDLE); }
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__fi VkBuffer GetBuffer() const { return m_buffer; }
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__fi u8* GetHostPointer() const { return m_host_pointer; }
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__fi u8* GetCurrentHostPointer() const { return m_host_pointer + m_current_offset; }
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__fi u32 GetCurrentSize() const { return m_size; }
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__fi u32 GetCurrentSpace() const { return m_current_space; }
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__fi u32 GetCurrentOffset() const { return m_current_offset; }
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bool Create(VkBufferUsageFlags usage, u32 size);
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void Destroy(bool defer);
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bool ReserveMemory(u32 num_bytes, u32 alignment);
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void CommitMemory(u32 final_num_bytes);
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private:
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bool AllocateBuffer(VkBufferUsageFlags usage, u32 size);
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void UpdateCurrentFencePosition();
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void UpdateGPUPosition();
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// Waits for as many fences as needed to allocate num_bytes bytes from the buffer.
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bool WaitForClearSpace(u32 num_bytes);
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u32 m_size = 0;
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u32 m_current_offset = 0;
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u32 m_current_space = 0;
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u32 m_current_gpu_position = 0;
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VmaAllocation m_allocation = VK_NULL_HANDLE;
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VkBuffer m_buffer = VK_NULL_HANDLE;
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u8* m_host_pointer = nullptr;
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// List of fences and the corresponding positions in the buffer
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std::deque<std::pair<u64, u32>> m_tracked_fences;
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};
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} // namespace Vulkan
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