FencePoolVulkan.h

#pragma once
 
#include <RendererVulkan/RendererVulkanDLL.h>
#include <Foundation/Time/Timestamp.h>
#include <vulkan/vulkan.hpp>
 
class PL_RENDERERVULKAN_DLL plFencePoolVulkan
{
public:
  static void Initialize(vk::Device device);
  static void DeInitialize();
 
  static vk::Fence RequestFence();
  static void ReclaimFence(vk::Fence& fence);
 
private:
  static plHybridArray<vk::Fence, 4> s_Fences;
  static vk::Device s_device;
};
 
 
// #TODO_VULKAN extend to support multiple queues.
class PL_RENDERERVULKAN_DLL plFenceQueueVulkan
{
public:
  plFenceQueueVulkan(plGALDeviceVulkan* pDevice);
  ~plFenceQueueVulkan();
  
  plGALFenceHandle GetCurrentFenceHandle();
  void FenceSubmitted(vk::Fence vkFence);
  void FlushReadyFences();
  plEnum<plGALAsyncResult> GetFenceResult(plGALFenceHandle hFence, plTime timeout = plTime::MakeZero());
 
private:
  plEnum<plGALAsyncResult> WaitForNextFence(plTime timeout = plTime::MakeZero());
 
private:
  struct PendingFence
  {
    vk::Fence m_vkFence;
    plGALFenceHandle m_hFence;
  };
  plDeque<PendingFence> m_PendingFences;
  plUInt64 m_uiCurrentFenceCounter = 1;
  plUInt64 m_uiReachedFenceCounter = 0;
  vk::Device m_device;
};