diff options
Diffstat (limited to 'src/video_core')
-rw-r--r-- | src/video_core/renderer_vulkan/vk_resource_manager.cpp | 62 | ||||
-rw-r--r-- | src/video_core/renderer_vulkan/vk_resource_manager.h | 23 |
2 files changed, 85 insertions, 0 deletions
diff --git a/src/video_core/renderer_vulkan/vk_resource_manager.cpp b/src/video_core/renderer_vulkan/vk_resource_manager.cpp index 2e9c6ef34..39c33c8cc 100644 --- a/src/video_core/renderer_vulkan/vk_resource_manager.cpp +++ b/src/video_core/renderer_vulkan/vk_resource_manager.cpp @@ -4,12 +4,16 @@ #include <algorithm> #include "common/assert.h" +#include "common/logging/log.h" #include "video_core/renderer_vulkan/declarations.h" #include "video_core/renderer_vulkan/vk_device.h" #include "video_core/renderer_vulkan/vk_resource_manager.h" namespace Vulkan { +// TODO(Rodrigo): Fine tune these numbers. +constexpr std::size_t FENCES_GROW_STEP = 0x40; + VKResource::VKResource() = default; VKResource::~VKResource() = default; @@ -117,4 +121,62 @@ void VKFenceWatch::OnFenceRemoval(VKFence* signaling_fence) { fence = nullptr; } +VKResourceManager::VKResourceManager(const VKDevice& device) : device{device} { + GrowFences(FENCES_GROW_STEP); +} + +VKResourceManager::~VKResourceManager() = default; + +VKFence& VKResourceManager::CommitFence() { + const auto StepFences = [&](bool gpu_wait, bool owner_wait) -> VKFence* { + const auto Tick = [=](auto& fence) { return fence->Tick(gpu_wait, owner_wait); }; + const auto hinted = fences.begin() + fences_iterator; + + auto it = std::find_if(hinted, fences.end(), Tick); + if (it == fences.end()) { + it = std::find_if(fences.begin(), hinted, Tick); + if (it == hinted) { + return nullptr; + } + } + fences_iterator = std::distance(fences.begin(), it) + 1; + if (fences_iterator >= fences.size()) + fences_iterator = 0; + + auto& fence = *it; + fence->Commit(); + return fence.get(); + }; + + VKFence* found_fence = StepFences(false, false); + if (!found_fence) { + // Try again, this time waiting. + found_fence = StepFences(true, false); + + if (!found_fence) { + // Allocate new fences and try again. + LOG_INFO(Render_Vulkan, "Allocating new fences {} -> {}", fences.size(), + fences.size() + FENCES_GROW_STEP); + + GrowFences(FENCES_GROW_STEP); + found_fence = StepFences(true, false); + ASSERT(found_fence != nullptr); + } + } + return *found_fence; +} + +void VKResourceManager::GrowFences(std::size_t new_fences_count) { + const auto dev = device.GetLogical(); + const auto& dld = device.GetDispatchLoader(); + const vk::FenceCreateInfo fence_ci; + + const std::size_t previous_size = fences.size(); + fences.resize(previous_size + new_fences_count); + + std::generate(fences.begin() + previous_size, fences.end(), [&]() { + return std::make_unique<VKFence>(device, dev.createFenceUnique(fence_ci, nullptr, dld)); + }); +} + } // namespace Vulkan diff --git a/src/video_core/renderer_vulkan/vk_resource_manager.h b/src/video_core/renderer_vulkan/vk_resource_manager.h index 5345ba46e..c8759f779 100644 --- a/src/video_core/renderer_vulkan/vk_resource_manager.h +++ b/src/video_core/renderer_vulkan/vk_resource_manager.h @@ -4,6 +4,8 @@ #pragma once +#include <cstddef> +#include <memory> #include <vector> #include "video_core/renderer_vulkan/declarations.h" @@ -116,4 +118,25 @@ private: VKFence* fence{}; ///< Fence watching this resource. nullptr when the watch is free. }; +/** + * The resource manager handles all resources that can be protected with a fence avoiding + * driver-side or GPU-side concurrent usage. Usage is documented in VKFence. + */ +class VKResourceManager final { +public: + explicit VKResourceManager(const VKDevice& device); + ~VKResourceManager(); + + /// Commits a fence. It has to be sent to a queue and released. + VKFence& CommitFence(); + +private: + /// Allocates new fences. + void GrowFences(std::size_t new_fences_count); + + const VKDevice& device; ///< Device handler. + std::size_t fences_iterator = 0; ///< Index where a free fence is likely to be found. + std::vector<std::unique_ptr<VKFence>> fences; ///< Pool of fences. +}; + } // namespace Vulkan |