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VideoBackends:Vulkan: Improve backend multithreading

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Makes the multiple threads actually able to run at the same time
This commit is contained in:
TellowKrinkle 2022-08-10 23:46:36 -05:00
parent 10f973a87f
commit 6fd933915b
2 changed files with 12 additions and 3 deletions
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14
Source/Core/VideoBackends/Vulkan/CommandBufferManager.cpp
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@ -239,6 +239,8 @@ bool CommandBufferManager::CreateSubmitThread()
SubmitCommandBuffer(submit.command_buffer_index, submit.present_swap_chain,
submit.present_image_index);
CmdBufferResources& resources = m_command_buffers[submit.command_buffer_index];
resources.waiting_for_submit.store(false, std::memory_order_release);
{
std::lock_guard<std::mutex> guard(m_pending_submit_lock);
@ -284,11 +286,16 @@ void CommandBufferManager::WaitForFenceCounter(u64 fence_counter)
void CommandBufferManager::WaitForCommandBufferCompletion(u32 index)
{
// Ensure this command buffer has been submitted.
WaitForWorkerThreadIdle();
CmdBufferResources& resources = m_command_buffers[index];
// Ensure this command buffer has been submitted.
if (resources.waiting_for_submit.load(std::memory_order_acquire))
{
WaitForWorkerThreadIdle();
ASSERT_MSG(VIDEO, !resources.waiting_for_submit.load(std::memory_order_relaxed),
"Submit thread is idle but command buffer is still waiting for submission!");
}
// Wait for this command buffer to be completed.
VkResult res =
vkWaitForFences(g_vulkan_context->GetDevice(), 1, &resources.fence, VK_TRUE, UINT64_MAX);
@ -339,6 +346,7 @@ void CommandBufferManager::SubmitCommandBuffer(bool submit_on_worker_thread,
// Submitting off-thread?
if (m_use_threaded_submission && submit_on_worker_thread && !wait_for_completion)
{
resources.waiting_for_submit.store(true, std::memory_order_relaxed);
// Push to the pending submit queue.
{
std::lock_guard<std::mutex> guard(m_pending_submit_lock);

1
Source/Core/VideoBackends/Vulkan/CommandBufferManager.h
View File

@ -118,6 +118,7 @@ private:
u64 fence_counter = 0;
bool init_command_buffer_used = false;
bool semaphore_used = false;
std::atomic<bool> waiting_for_submit{false};
u32 frame_index = 0;
std::vector<std::function<void()>> cleanup_resources;