2019-02-14 16:52:46 +01:00
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// Copyright 2018 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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2019-02-14 16:57:56 +01:00
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#include <algorithm>
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2019-02-14 17:06:05 +01:00
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#include "common/assert.h"
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2019-02-14 17:11:32 +01:00
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#include "common/logging/log.h"
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2019-02-14 16:52:46 +01:00
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#include "video_core/renderer_vulkan/declarations.h"
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2019-02-14 16:57:56 +01:00
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#include "video_core/renderer_vulkan/vk_device.h"
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2019-02-14 16:52:46 +01:00
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#include "video_core/renderer_vulkan/vk_resource_manager.h"
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namespace Vulkan {
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2019-02-14 17:11:32 +01:00
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// TODO(Rodrigo): Fine tune these numbers.
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constexpr std::size_t FENCES_GROW_STEP = 0x40;
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2019-02-14 16:52:46 +01:00
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VKResource::VKResource() = default;
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VKResource::~VKResource() = default;
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2019-02-14 16:57:56 +01:00
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VKFence::VKFence(const VKDevice& device, UniqueFence handle)
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: device{device}, handle{std::move(handle)} {}
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VKFence::~VKFence() = default;
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void VKFence::Wait() {
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const auto dev = device.GetLogical();
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const auto& dld = device.GetDispatchLoader();
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dev.waitForFences({*handle}, true, std::numeric_limits<u64>::max(), dld);
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}
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void VKFence::Release() {
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is_owned = false;
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}
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void VKFence::Commit() {
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is_owned = true;
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is_used = true;
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}
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bool VKFence::Tick(bool gpu_wait, bool owner_wait) {
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if (!is_used) {
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// If a fence is not used it's always free.
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return true;
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}
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if (is_owned && !owner_wait) {
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// The fence is still being owned (Release has not been called) and ownership wait has
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// not been asked.
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return false;
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}
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const auto dev = device.GetLogical();
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const auto& dld = device.GetDispatchLoader();
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if (gpu_wait) {
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// Wait for the fence if it has been requested.
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dev.waitForFences({*handle}, true, std::numeric_limits<u64>::max(), dld);
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} else {
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if (dev.getFenceStatus(*handle, dld) != vk::Result::eSuccess) {
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// Vulkan fence is not ready, not much it can do here
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return false;
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}
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}
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// Broadcast resources their free state.
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for (auto* resource : protected_resources) {
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resource->OnFenceRemoval(this);
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}
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protected_resources.clear();
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// Prepare fence for reusage.
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dev.resetFences({*handle}, dld);
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is_used = false;
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return true;
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}
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void VKFence::Protect(VKResource* resource) {
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protected_resources.push_back(resource);
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}
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void VKFence::Unprotect(const VKResource* resource) {
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const auto it = std::find(protected_resources.begin(), protected_resources.end(), resource);
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if (it != protected_resources.end()) {
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protected_resources.erase(it);
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}
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}
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2019-02-14 17:06:05 +01:00
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VKFenceWatch::VKFenceWatch() = default;
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VKFenceWatch::~VKFenceWatch() {
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if (fence) {
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fence->Unprotect(this);
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}
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}
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void VKFenceWatch::Wait() {
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if (!fence) {
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return;
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}
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fence->Wait();
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fence->Unprotect(this);
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fence = nullptr;
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}
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void VKFenceWatch::Watch(VKFence& new_fence) {
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Wait();
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fence = &new_fence;
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fence->Protect(this);
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}
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bool VKFenceWatch::TryWatch(VKFence& new_fence) {
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if (fence) {
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return false;
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}
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fence = &new_fence;
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fence->Protect(this);
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return true;
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}
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void VKFenceWatch::OnFenceRemoval(VKFence* signaling_fence) {
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ASSERT_MSG(signaling_fence == fence, "Removing the wrong fence");
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fence = nullptr;
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}
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2019-02-14 17:11:32 +01:00
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VKResourceManager::VKResourceManager(const VKDevice& device) : device{device} {
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GrowFences(FENCES_GROW_STEP);
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}
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VKResourceManager::~VKResourceManager() = default;
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VKFence& VKResourceManager::CommitFence() {
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const auto StepFences = [&](bool gpu_wait, bool owner_wait) -> VKFence* {
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const auto Tick = [=](auto& fence) { return fence->Tick(gpu_wait, owner_wait); };
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const auto hinted = fences.begin() + fences_iterator;
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auto it = std::find_if(hinted, fences.end(), Tick);
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if (it == fences.end()) {
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it = std::find_if(fences.begin(), hinted, Tick);
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if (it == hinted) {
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return nullptr;
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}
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}
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fences_iterator = std::distance(fences.begin(), it) + 1;
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if (fences_iterator >= fences.size())
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fences_iterator = 0;
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auto& fence = *it;
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fence->Commit();
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return fence.get();
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};
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VKFence* found_fence = StepFences(false, false);
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if (!found_fence) {
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// Try again, this time waiting.
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found_fence = StepFences(true, false);
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if (!found_fence) {
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// Allocate new fences and try again.
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LOG_INFO(Render_Vulkan, "Allocating new fences {} -> {}", fences.size(),
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fences.size() + FENCES_GROW_STEP);
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GrowFences(FENCES_GROW_STEP);
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found_fence = StepFences(true, false);
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ASSERT(found_fence != nullptr);
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}
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}
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return *found_fence;
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}
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void VKResourceManager::GrowFences(std::size_t new_fences_count) {
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const auto dev = device.GetLogical();
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const auto& dld = device.GetDispatchLoader();
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const vk::FenceCreateInfo fence_ci;
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const std::size_t previous_size = fences.size();
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fences.resize(previous_size + new_fences_count);
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std::generate(fences.begin() + previous_size, fences.end(), [&]() {
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return std::make_unique<VKFence>(device, dev.createFenceUnique(fence_ci, nullptr, dld));
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});
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}
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2019-02-14 16:52:46 +01:00
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} // namespace Vulkan
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