text: /*     Copyright 2019 Diligent Graphics LLC
   *  
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   * 
   *     http://www.apache.org/licenses/LICENSE-2.0
   * 
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
   *
   *  In no event and under no legal theory, whether in tort (including negligence), 
   *  contract, or otherwise, unless required by applicable law (such as deliberate 
   *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
   *  liable for any damages, including any direct, indirect, special, incidental, 
   *  or consequential damages of any character arising as a result of this License or 
   *  out of the use or inability to use the software (including but not limited to damages 
   *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
   *  all other commercial damages or losses), even if such Contributor has been advised 
   *  of the possibility of such damages.
   */
  
  #pragma once
  
  /// \file
  /// Declaration of Diligent::SwapChainVkImpl class
  
  #include "SwapChainVk.h"
  #include "SwapChainBase.h"
  #include "VulkanUtilities/VulkanInstance.h"
  #include "VulkanUtilities/VulkanObjectWrappers.h"
  
  namespace Diligent
  {
  
  class ITextureViewVk;
  class IMemoryAllocator;
  /// Implementation of the Diligent::ISwapChainVk interface
  class SwapChainVkImpl final : public SwapChainBase<ISwapChainVk>
  {
  public:
      using TSwapChainBase = SwapChainBase<ISwapChainVk>;
  
      SwapChainVkImpl(IReferenceCounters*        pRefCounters,
                      const SwapChainDesc&       SwapChainDesc, 
                      class RenderDeviceVkImpl*  pRenderDeviceVk,
                      class DeviceContextVkImpl* pDeviceContextVk,
                      void*                      pNativeWndHandle);
      ~SwapChainVkImpl();
  
      virtual void QueryInterface(const INTERFACE_ID& IID, IObject** ppInterface)override final;
  
      virtual void Present(Uint32 SyncInterval)override final;
      virtual void Resize( Uint32 NewWidth, Uint32 NewHeight )override final;
  
      virtual void SetFullscreenMode(const DisplayModeAttribs &DisplayMode)override final;
  
      virtual void SetWindowedMode()override final;
  
      virtual VkSwapchainKHR GetVkSwapChain()override final{ return m_VkSwapChain; }
  
      virtual ITextureViewVk* GetCurrentBackBufferRTV()override final
      {
          VERIFY_EXPR(m_BackBufferIndex >= 0 && m_BackBufferIndex < m_SwapChainDesc.BufferCount);
          return m_pBackBufferRTV[m_BackBufferIndex];
      }
  
      virtual ITextureViewVk* GetDepthBufferDSV()override final{return m_pDepthBufferDSV;}
  
  private:
      void CreateVulkanSwapChain();
      void InitBuffersAndViews();
      VkResult AcquireNextImage(DeviceContextVkImpl* pDeviceCtxVk);
      void RecreateVulkanSwapchain(DeviceContextVkImpl* pImmediateCtxVk);
      void WaitForImageAcquiredFences();
  
      std::shared_ptr<const VulkanUtilities::VulkanInstance> m_VulkanInstance;
      VkSurfaceKHR   m_VkSurface     = VK_NULL_HANDLE;
      VkSwapchainKHR m_VkSwapChain   = VK_NULL_HANDLE;
      VkFormat       m_VkColorFormat = VK_FORMAT_UNDEFINED;
  
      std::vector<VulkanUtilities::SemaphoreWrapper> m_ImageAcquiredSemaphores;
      std::vector<VulkanUtilities::SemaphoreWrapper> m_DrawCompleteSemaphores;
      std::vector<VulkanUtilities::FenceWrapper>     m_ImageAcquiredFences;
      std::vector< RefCntAutoPtr<ITextureViewVk>, STDAllocatorRawMem<RefCntAutoPtr<ITextureViewVk>> > m_pBackBufferRTV;
      std::vector<bool, STDAllocatorRawMem<bool> > m_SwapChainImagesInitialized;
      std::vector<bool, STDAllocatorRawMem<bool> > m_ImageAcquiredFenceSubmitted;
  
      RefCntAutoPtr<ITextureViewVk> m_pDepthBufferDSV;
      Uint32   m_SemaphoreIndex  = 0;
      uint32_t m_BackBufferIndex = 0;
      bool     m_IsMinimized     = false;
  };
  
  }
  