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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <mutex>
#include <optional>
#include <thread>
#include <utility>
#include "common/assert.h"
#include "common/microprofile.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_query_cache.h"
#include "video_core/renderer_vulkan/vk_resource_manager.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/renderer_vulkan/vk_state_tracker.h"
namespace Vulkan {
MICROPROFILE_DECLARE(Vulkan_WaitForWorker);
void VKScheduler::CommandChunk::ExecuteAll(vk::CommandBuffer cmdbuf,
const vk::DispatchLoaderDynamic& dld) {
auto command = first;
while (command != nullptr) {
auto next = command->GetNext();
command->Execute(cmdbuf, dld);
command->~Command();
command = next;
}
command_offset = 0;
first = nullptr;
last = nullptr;
}
VKScheduler::VKScheduler(const VKDevice& device, VKResourceManager& resource_manager,
StateTracker& state_tracker)
: device{device}, resource_manager{resource_manager}, state_tracker{state_tracker},
next_fence{&resource_manager.CommitFence()} {
AcquireNewChunk();
AllocateNewContext();
worker_thread = std::thread(&VKScheduler::WorkerThread, this);
}
VKScheduler::~VKScheduler() {
quit = true;
cv.notify_all();
worker_thread.join();
}
void VKScheduler::Flush(bool release_fence, vk::Semaphore semaphore) {
SubmitExecution(semaphore);
if (release_fence) {
current_fence->Release();
}
AllocateNewContext();
}
void VKScheduler::Finish(bool release_fence, vk::Semaphore semaphore) {
SubmitExecution(semaphore);
current_fence->Wait();
if (release_fence) {
current_fence->Release();
}
AllocateNewContext();
}
void VKScheduler::WaitWorker() {
MICROPROFILE_SCOPE(Vulkan_WaitForWorker);
DispatchWork();
bool finished = false;
do {
cv.notify_all();
std::unique_lock lock{mutex};
finished = chunk_queue.Empty();
} while (!finished);
}
void VKScheduler::DispatchWork() {
if (chunk->Empty()) {
return;
}
chunk_queue.Push(std::move(chunk));
cv.notify_all();
AcquireNewChunk();
}
void VKScheduler::RequestRenderpass(const vk::RenderPassBeginInfo& renderpass_bi) {
if (state.renderpass && renderpass_bi == *state.renderpass) {
return;
}
const bool end_renderpass = state.renderpass.has_value();
state.renderpass = renderpass_bi;
Record([renderpass_bi, end_renderpass](auto cmdbuf, auto& dld) {
if (end_renderpass) {
cmdbuf.endRenderPass(dld);
}
cmdbuf.beginRenderPass(renderpass_bi, vk::SubpassContents::eInline, dld);
});
}
void VKScheduler::RequestOutsideRenderPassOperationContext() {
EndRenderPass();
}
void VKScheduler::BindGraphicsPipeline(vk::Pipeline pipeline) {
if (state.graphics_pipeline == pipeline) {
return;
}
state.graphics_pipeline = pipeline;
Record([pipeline](auto cmdbuf, auto& dld) {
cmdbuf.bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline, dld);
});
}
void VKScheduler::WorkerThread() {
std::unique_lock lock{mutex};
do {
cv.wait(lock, [this] { return !chunk_queue.Empty() || quit; });
if (quit) {
continue;
}
auto extracted_chunk = std::move(chunk_queue.Front());
chunk_queue.Pop();
extracted_chunk->ExecuteAll(current_cmdbuf, device.GetDispatchLoader());
chunk_reserve.Push(std::move(extracted_chunk));
} while (!quit);
}
void VKScheduler::SubmitExecution(vk::Semaphore semaphore) {
EndPendingOperations();
InvalidateState();
WaitWorker();
std::unique_lock lock{mutex};
const auto queue = device.GetGraphicsQueue();
const auto& dld = device.GetDispatchLoader();
current_cmdbuf.end(dld);
const vk::SubmitInfo submit_info(0, nullptr, nullptr, 1, ¤t_cmdbuf, semaphore ? 1U : 0U,
&semaphore);
queue.submit({submit_info}, static_cast<vk::Fence>(*current_fence), dld);
}
void VKScheduler::AllocateNewContext() {
++ticks;
std::unique_lock lock{mutex};
current_fence = next_fence;
next_fence = &resource_manager.CommitFence();
current_cmdbuf = resource_manager.CommitCommandBuffer(*current_fence);
current_cmdbuf.begin({vk::CommandBufferUsageFlagBits::eOneTimeSubmit},
device.GetDispatchLoader());
// Enable counters once again. These are disabled when a command buffer is finished.
if (query_cache) {
query_cache->UpdateCounters();
}
}
void VKScheduler::InvalidateState() {
state.graphics_pipeline = nullptr;
state_tracker.InvalidateCommandBufferState();
}
void VKScheduler::EndPendingOperations() {
query_cache->DisableStreams();
EndRenderPass();
}
void VKScheduler::EndRenderPass() {
if (!state.renderpass) {
return;
}
state.renderpass = std::nullopt;
Record([](auto cmdbuf, auto& dld) { cmdbuf.endRenderPass(dld); });
}
void VKScheduler::AcquireNewChunk() {
if (chunk_reserve.Empty()) {
chunk = std::make_unique<CommandChunk>();
return;
}
chunk = std::move(chunk_reserve.Front());
chunk_reserve.Pop();
}
} // namespace Vulkan
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