forked from suyu/suyu
9764c13d6d
The current texture cache has several points that hurt maintainability and performance. It's easy to break unrelated parts of the cache when doing minor changes. The cache can easily forget valuable information about the cached textures by CPU writes or simply by its normal usage.The current texture cache has several points that hurt maintainability and performance. It's easy to break unrelated parts of the cache when doing minor changes. The cache can easily forget valuable information about the cached textures by CPU writes or simply by its normal usage. This commit aims to address those issues.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright 2019 yuzu Emulator Project
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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 <optional>
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#include <utility>
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#include <vector>
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#include "common/common_types.h"
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#include "video_core/renderer_vulkan/wrapper.h"
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namespace Vulkan {
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class VKDevice;
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class VKFenceWatch;
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class VKScheduler;
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class VKStreamBuffer final {
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public:
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explicit VKStreamBuffer(const VKDevice& device, VKScheduler& scheduler);
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~VKStreamBuffer();
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/**
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* Reserves a region of memory from the stream buffer.
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* @param size Size to reserve.
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* @returns A pair of a raw memory pointer (with offset added), and the buffer offset
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*/
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std::pair<u8*, u64> Map(u64 size, u64 alignment);
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/// Ensures that "size" bytes of memory are available to the GPU, potentially recording a copy.
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void Unmap(u64 size);
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VkBuffer Handle() const noexcept {
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return *buffer;
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}
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u64 Address() const noexcept {
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return 0;
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}
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private:
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struct Watch {
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u64 tick{};
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u64 upper_bound{};
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};
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/// Creates Vulkan buffer handles committing the required the required memory.
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void CreateBuffers();
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/// Increases the amount of watches available.
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void ReserveWatches(std::vector<Watch>& watches, std::size_t grow_size);
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void WaitPendingOperations(u64 requested_upper_bound);
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const VKDevice& device; ///< Vulkan device manager.
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VKScheduler& scheduler; ///< Command scheduler.
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vk::Buffer buffer; ///< Mapped buffer.
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vk::DeviceMemory memory; ///< Memory allocation.
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u64 stream_buffer_size{}; ///< Stream buffer size.
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u64 offset{}; ///< Buffer iterator.
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u64 mapped_size{}; ///< Size reserved for the current copy.
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std::vector<Watch> current_watches; ///< Watches recorded in the current iteration.
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std::size_t current_watch_cursor{}; ///< Count of watches, reset on invalidation.
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std::optional<std::size_t> invalidation_mark; ///< Number of watches used in the previous cycle.
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std::vector<Watch> previous_watches; ///< Watches used in the previous iteration.
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std::size_t wait_cursor{}; ///< Last watch being waited for completion.
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u64 wait_bound{}; ///< Highest offset being watched for completion.
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};
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} // namespace Vulkan
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