/*
 *  Copyright 2019-2021 Diligent Graphics LLC
 *  Copyright 2015-2019 Egor Yusov
 *  
 *  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
 *  
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  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::SwapChainD3D11Impl class

#include "SwapChainD3D11.h"
#include "SwapChainD3DBase.hpp"

namespace Diligent
{

/// Swap chain implementation in Direct3D11 backend.
class SwapChainD3D11Impl final : public SwapChainD3DBase<ISwapChainD3D11, IDXGISwapChain>
{
public:
    using TSwapChainBase = SwapChainD3DBase<ISwapChainD3D11, IDXGISwapChain>;

    SwapChainD3D11Impl(IReferenceCounters*           pRefCounters,
                       const SwapChainDesc&          SCDesc,
                       const FullScreenModeDesc&     FSDesc,
                       class RenderDeviceD3D11Impl*  pRenderDeviceD3D11,
                       class DeviceContextD3D11Impl* pDeviceContextD3D11,
                       const NativeWindow&           Window);
    ~SwapChainD3D11Impl();

    virtual void DILIGENT_CALL_TYPE QueryInterface(const INTERFACE_ID& IID, IObject** ppInterface) override final;

    /// Implementation of ISwapChain::Present() in Direct3D11 backend.
    virtual void DILIGENT_CALL_TYPE Present(Uint32 SyncInterval) override final;

    /// Implementation of ISwapChain::Resize() in Direct3D11 backend.
    virtual void DILIGENT_CALL_TYPE Resize(Uint32 NewWidth, Uint32 NewHeight, SURFACE_TRANSFORM NewPreTransform) override final;

    /// Implementation of ISwapChainD3D11::GetDXGISwapChain() in Direct3D11 backend.
    virtual IDXGISwapChain* DILIGENT_CALL_TYPE GetDXGISwapChain() override final { return m_pSwapChain; }

    /// Implementation of ISwapChainD3D11::GetCurrentBackBufferRTV() in Direct3D11 backend.
    virtual ITextureViewD3D11* DILIGENT_CALL_TYPE GetCurrentBackBufferRTV() override final { return m_pRenderTargetView; }

    /// Implementation of ISwapChainD3D11::GetDepthBufferDSV() in Direct3D11 backend.
    virtual ITextureViewD3D11* DILIGENT_CALL_TYPE GetDepthBufferDSV() override final { return m_pDepthStencilView; }

private:
    virtual void UpdateSwapChain(bool CreateNew) override final;
    void         CreateRTVandDSV();
    virtual void SetDXGIDeviceMaximumFrameLatency() override final;

    RefCntAutoPtr<ITextureViewD3D11> m_pRenderTargetView;
    RefCntAutoPtr<ITextureViewD3D11> m_pDepthStencilView;
};

} // namespace Diligent