97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2020 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef XENIA_GPU_VULKAN_VULKAN_SHARED_MEMORY_H_
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#define XENIA_GPU_VULKAN_VULKAN_SHARED_MEMORY_H_
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#include <algorithm>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "xenia/gpu/shared_memory.h"
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#include "xenia/gpu/trace_writer.h"
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#include "xenia/memory.h"
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#include "xenia/ui/vulkan/vulkan_provider.h"
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#include "xenia/ui/vulkan/vulkan_upload_buffer_pool.h"
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namespace xe {
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namespace gpu {
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namespace vulkan {
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class VulkanCommandProcessor;
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class VulkanSharedMemory : public SharedMemory {
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public:
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VulkanSharedMemory(VulkanCommandProcessor& command_processor, Memory& memory,
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TraceWriter& trace_writer);
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~VulkanSharedMemory() override;
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bool Initialize();
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void Shutdown(bool from_destructor = false);
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void CompletedSubmissionUpdated();
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void EndSubmission();
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enum class Usage {
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// Index buffer, vfetch, compute read, transfer source.
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kRead,
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// Index buffer, vfetch, memexport.
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kGuestDrawReadWrite,
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kComputeWrite,
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kTransferDestination,
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};
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// Places pipeline barrier for the target usage, also ensuring writes of
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// adjacent are ordered with writes of each other and reads.
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void Use(Usage usage, std::pair<uint32_t, uint32_t> written_range = {});
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VkBuffer buffer() const { return buffer_; }
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// Returns true if any downloads were submitted to the command processor.
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bool InitializeTraceSubmitDownloads();
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void InitializeTraceCompleteDownloads();
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protected:
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bool AllocateSparseHostGpuMemoryRange(uint32_t offset_allocations,
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uint32_t length_allocations) override;
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bool UploadRanges(const std::vector<std::pair<uint32_t, uint32_t>>&
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upload_page_ranges) override;
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private:
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void GetBarrier(Usage usage, VkPipelineStageFlags& stage_mask,
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VkAccessFlags& access_mask) const;
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VulkanCommandProcessor& command_processor_;
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TraceWriter& trace_writer_;
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VkBuffer buffer_ = VK_NULL_HANDLE;
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uint32_t buffer_memory_type_;
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// Single for non-sparse, every allocation so far for sparse.
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std::vector<VkDeviceMemory> buffer_memory_;
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// First usage will likely be uploading.
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Usage last_usage_ = Usage::kTransferDestination;
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std::pair<uint32_t, uint32_t> last_written_range_ = {};
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std::unique_ptr<ui::vulkan::VulkanUploadBufferPool> upload_buffer_pool_;
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std::vector<VkBufferCopy> upload_regions_;
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// Created temporarily, only for downloading.
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VkBuffer trace_download_buffer_ = VK_NULL_HANDLE;
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VkDeviceMemory trace_download_buffer_memory_ = VK_NULL_HANDLE;
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void ResetTraceDownload();
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};
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} // namespace vulkan
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} // namespace gpu
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} // namespace xe
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#endif // XENIA_GPU_VULKAN_VULKAN_SHARED_MEMORY_H_
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