2019-12-25 22:12:17 +01:00
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// 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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#include <algorithm>
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#include <utility>
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#include <vector>
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2020-12-31 02:58:05 +01:00
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#include <fmt/format.h>
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2019-12-25 22:12:17 +01:00
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#include "common/bit_util.h"
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#include "common/common_types.h"
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#include "video_core/renderer_vulkan/vk_scheduler.h"
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#include "video_core/renderer_vulkan/vk_staging_buffer_pool.h"
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2020-12-31 02:58:05 +01:00
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#include "video_core/vulkan_common/vulkan_device.h"
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2021-01-03 22:11:01 +01:00
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#include "video_core/vulkan_common/vulkan_wrapper.h"
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2019-12-25 22:12:17 +01:00
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namespace Vulkan {
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2021-01-03 22:11:01 +01:00
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StagingBufferPool::StagingBufferPool(const Device& device_, MemoryAllocator& memory_allocator_,
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VKScheduler& scheduler_)
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: device{device_}, memory_allocator{memory_allocator_}, scheduler{scheduler_} {}
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2019-12-25 22:12:17 +01:00
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2020-12-31 02:58:05 +01:00
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StagingBufferPool::~StagingBufferPool() = default;
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2019-12-25 22:12:17 +01:00
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2020-12-31 02:58:05 +01:00
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StagingBufferRef StagingBufferPool::Request(size_t size, bool host_visible) {
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if (const std::optional<StagingBufferRef> ref = TryGetReservedBuffer(size, host_visible)) {
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return *ref;
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2019-12-25 22:12:17 +01:00
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}
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return CreateStagingBuffer(size, host_visible);
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}
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2020-12-31 02:58:05 +01:00
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void StagingBufferPool::TickFrame() {
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current_delete_level = (current_delete_level + 1) % NUM_LEVELS;
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2019-12-25 22:12:17 +01:00
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ReleaseCache(true);
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2020-04-22 02:46:58 +02:00
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ReleaseCache(false);
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2019-12-25 22:12:17 +01:00
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}
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2020-12-31 02:58:05 +01:00
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std::optional<StagingBufferRef> StagingBufferPool::TryGetReservedBuffer(size_t size,
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bool host_visible) {
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StagingBuffers& cache_level = GetCache(host_visible)[Common::Log2Ceil64(size)];
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const auto is_free = [this](const StagingBuffer& entry) {
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return scheduler.IsFree(entry.tick);
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};
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auto& entries = cache_level.entries;
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const auto hint_it = entries.begin() + cache_level.iterate_index;
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auto it = std::find_if(entries.begin() + cache_level.iterate_index, entries.end(), is_free);
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if (it == entries.end()) {
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it = std::find_if(entries.begin(), hint_it, is_free);
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if (it == hint_it) {
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return std::nullopt;
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}
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}
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cache_level.iterate_index = std::distance(entries.begin(), it) + 1;
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it->tick = scheduler.CurrentTick();
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return it->Ref();
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}
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StagingBufferRef StagingBufferPool::CreateStagingBuffer(size_t size, bool host_visible) {
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const u32 log2 = Common::Log2Ceil64(size);
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vk::Buffer buffer = device.GetLogical().CreateBuffer({
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.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
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.pNext = nullptr,
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.flags = 0,
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.size = 1ULL << log2,
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.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT |
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VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
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VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
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.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
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.queueFamilyIndexCount = 0,
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.pQueueFamilyIndices = nullptr,
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});
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if (device.HasDebuggingToolAttached()) {
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++buffer_index;
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buffer.SetObjectNameEXT(fmt::format("Staging Buffer {}", buffer_index).c_str());
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}
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MemoryCommit commit = memory_allocator.Commit(buffer, host_visible);
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const std::span<u8> mapped_span = host_visible ? commit.Map() : std::span<u8>{};
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StagingBuffer& entry = GetCache(host_visible)[log2].entries.emplace_back(StagingBuffer{
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.buffer = std::move(buffer),
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.commit = std::move(commit),
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.mapped_span = mapped_span,
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.tick = scheduler.CurrentTick(),
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});
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return entry.Ref();
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}
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StagingBufferPool::StagingBuffersCache& StagingBufferPool::GetCache(bool host_visible) {
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return host_visible ? host_staging_buffers : device_staging_buffers;
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}
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2020-12-31 02:58:05 +01:00
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void StagingBufferPool::ReleaseCache(bool host_visible) {
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ReleaseLevel(GetCache(host_visible), current_delete_level);
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}
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void StagingBufferPool::ReleaseLevel(StagingBuffersCache& cache, size_t log2) {
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constexpr size_t deletions_per_tick = 16;
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auto& staging = cache[log2];
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auto& entries = staging.entries;
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const size_t old_size = entries.size();
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2019-12-25 22:12:17 +01:00
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2020-09-10 08:43:30 +02:00
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const auto is_deleteable = [this](const StagingBuffer& entry) {
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return scheduler.IsFree(entry.tick);
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};
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const size_t begin_offset = staging.delete_index;
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const size_t end_offset = std::min(begin_offset + deletions_per_tick, old_size);
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const auto begin = entries.begin() + begin_offset;
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const auto end = entries.begin() + end_offset;
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entries.erase(std::remove_if(begin, end, is_deleteable), end);
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2020-12-31 02:58:05 +01:00
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const size_t new_size = entries.size();
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staging.delete_index += deletions_per_tick;
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if (staging.delete_index >= new_size) {
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staging.delete_index = 0;
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}
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if (staging.iterate_index > new_size) {
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staging.iterate_index = 0;
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}
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2019-12-25 22:12:17 +01:00
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}
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} // namespace Vulkan
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