/* 
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved. 
* 
* NVIDIA CORPORATION and its licensors retain all intellectual property 
* and proprietary rights in and to this software, related documentation 
* and any modifications thereto. Any use, reproduction, disclosure or 
* distribution of this software and related documentation without an express 
* license agreement from NVIDIA CORPORATION is strictly prohibited. 
*/

#if SUPPORT_D3D11

#pragma once
#include "Common.h"

namespace GFSDK
{
namespace SSAO
{
namespace D3D11
{

//--------------------------------------------------------------------------------
class States
{
public:
    States()
        : m_pBlendState_Disabled(NULL)
        , m_pBlendState_Multiply_PreserveAlpha(NULL)
        , m_pBlendState_Disabled_PreserveAlpha(NULL)
        , m_pDepthStencilState_Disabled(NULL)
        , m_pRasterizerState_Fullscreen_NoScissor(NULL)
        , m_pSamplerState_PointClamp(NULL)
        , m_pSamplerState_PointBorder(NULL)
        , m_pSamplerState_LinearClamp(NULL)
#if ENABLE_DEBUG_MODES
        , m_pSamplerState_PointWrap(NULL)
#endif
      {
      }

    void Create(ID3D11Device* pD3DDevice);
    void Release();

    ID3D11BlendState* GetBlendStateMultiplyPreserveAlpha()
    {
        return m_pBlendState_Multiply_PreserveAlpha;
    }
    ID3D11BlendState* GetBlendStateDisabledPreserveAlpha()
    {
        return m_pBlendState_Disabled_PreserveAlpha;
    }
    ID3D11BlendState* GetBlendStateDisabled()
    {
        return m_pBlendState_Disabled;
    }
    ID3D11DepthStencilState* GetDepthStencilStateDisabled()
    {
        return m_pDepthStencilState_Disabled;
    }
    ID3D11RasterizerState* GetRasterizerStateFullscreenNoScissor()
    {
        return m_pRasterizerState_Fullscreen_NoScissor;
    }
    ID3D11SamplerState*& GetSamplerStatePointClamp()
    {
        return m_pSamplerState_PointClamp;
    }
    ID3D11SamplerState*& GetSamplerStatePointBorder()
    {
        return m_pSamplerState_PointBorder;
    }
    ID3D11SamplerState*& GetSamplerStateLinearClamp()
    {
        return m_pSamplerState_LinearClamp;
    }
#if ENABLE_DEBUG_MODES
    ID3D11SamplerState*& GetSamplerStatePointWrap()
    {
        return m_pSamplerState_PointWrap;
    }
#endif

private:
    void CreateBlendStates(ID3D11Device* pD3DDevice);
    void CreateDepthStencilStates(ID3D11Device* pD3DDevice);
    void CreateRasterizerStates(ID3D11Device* pD3DDevice);
    void CreateSamplerStates(ID3D11Device* pD3DDevice);

    ID3D11BlendState* m_pBlendState_Disabled;
    ID3D11BlendState* m_pBlendState_Multiply_PreserveAlpha;
    ID3D11BlendState* m_pBlendState_Disabled_PreserveAlpha;
    ID3D11DepthStencilState* m_pDepthStencilState_Disabled;
    ID3D11RasterizerState* m_pRasterizerState_Fullscreen_NoScissor;
    ID3D11SamplerState* m_pSamplerState_PointClamp;
    ID3D11SamplerState* m_pSamplerState_PointBorder;
    ID3D11SamplerState* m_pSamplerState_LinearClamp;
#if ENABLE_DEBUG_MODES
    ID3D11SamplerState* m_pSamplerState_PointWrap;
#endif
};

} // namespace D3D11
} // namespace SSAO
} // namespace GFSDK

#endif // SUPPORT_D3D11