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Diffstat (limited to 'src/video_core/renderer_vulkan/vk_memory_manager.h')
-rw-r--r-- | src/video_core/renderer_vulkan/vk_memory_manager.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/video_core/renderer_vulkan/vk_memory_manager.h b/src/video_core/renderer_vulkan/vk_memory_manager.h new file mode 100644 index 000000000..073597b35 --- /dev/null +++ b/src/video_core/renderer_vulkan/vk_memory_manager.h @@ -0,0 +1,87 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <memory> +#include <utility> +#include <vector> +#include "common/common_types.h" +#include "video_core/renderer_vulkan/declarations.h" + +namespace Vulkan { + +class VKDevice; +class VKMemoryAllocation; +class VKMemoryCommitImpl; + +using VKMemoryCommit = std::unique_ptr<VKMemoryCommitImpl>; + +class VKMemoryManager final { +public: + explicit VKMemoryManager(const VKDevice& device); + ~VKMemoryManager(); + + /** + * Commits a memory with the specified requeriments. + * @param reqs Requeriments returned from a Vulkan call. + * @param host_visible Signals the allocator that it *must* use host visible and coherent + * memory. When passing false, it will try to allocate device local memory. + * @returns A memory commit. + */ + VKMemoryCommit Commit(const vk::MemoryRequirements& reqs, bool host_visible); + + /// Commits memory required by the buffer and binds it. + VKMemoryCommit Commit(vk::Buffer buffer, bool host_visible); + + /// Commits memory required by the image and binds it. + VKMemoryCommit Commit(vk::Image image, bool host_visible); + + /// Returns true if the memory allocations are done always in host visible and coherent memory. + bool IsMemoryUnified() const { + return is_memory_unified; + } + +private: + /// Allocates a chunk of memory. + bool AllocMemory(vk::MemoryPropertyFlags wanted_properties, u32 type_mask, u64 size); + + /// Returns true if the device uses an unified memory model. + static bool GetMemoryUnified(const vk::PhysicalDeviceMemoryProperties& props); + + const VKDevice& device; ///< Device handler. + const vk::PhysicalDeviceMemoryProperties props; ///< Physical device properties. + const bool is_memory_unified; ///< True if memory model is unified. + std::vector<std::unique_ptr<VKMemoryAllocation>> allocs; ///< Current allocations. +}; + +class VKMemoryCommitImpl final { + friend VKMemoryAllocation; + +public: + explicit VKMemoryCommitImpl(VKMemoryAllocation* allocation, vk::DeviceMemory memory, u8* data, + u64 begin, u64 end); + ~VKMemoryCommitImpl(); + + /// Returns the writeable memory map. The commit has to be mappable. + u8* GetData() const; + + /// Returns the Vulkan memory handler. + vk::DeviceMemory GetMemory() const { + return memory; + } + + /// Returns the start position of the commit relative to the allocation. + vk::DeviceSize GetOffset() const { + return static_cast<vk::DeviceSize>(interval.first); + } + +private: + std::pair<u64, u64> interval{}; ///< Interval where the commit exists. + vk::DeviceMemory memory; ///< Vulkan device memory handler. + VKMemoryAllocation* allocation{}; ///< Pointer to the large memory allocation. + u8* data{}; ///< Pointer to the host mapped memory, it has the commit offset included. +}; + +} // namespace Vulkan |