GteDX11Texture2.h

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// David Eberly, Geometric Tools, Redmond WA 98052
// Copyright (c) 1998-2017
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
// File Version: 3.0.1(2016/11/13)

#pragma once

#include <Graphics/GteTexture2.h>
#include <Graphics/DX11/GteDX11TextureSingle.h>

namespace gte
{

class GTE_IMPEXP DX11Texture2 : public DX11TextureSingle
{
public:
    // Construction.
    DX11Texture2(ID3D11Device* device, Texture2 const* texture);
    DX11Texture2(ID3D11Device* device, DX11Texture2 const* dxSharedTexture);

    // Create a texture with already known ID3D11Texture2 and
    // ID3D11ShaderResourceView interfaces.  TODO: For now, this allows
    // creation of DDS textures to be used only as shader resource views,
    // not as unordered access views, and there is no associated staging
    // texture.
    DX11Texture2(Texture2 const* texture, ID3D11Texture2D* dxTexture,
        ID3D11ShaderResourceView* dxSRView);

    static std::shared_ptr<GEObject> Create(void* device, GraphicsObject const* object);

protected:
    // Constructors for DX11TextureRT and DX11TextureDS.
    DX11Texture2(Texture2 const* texture);

public:
    // Member access.
    inline Texture2* GetTexture() const;
    inline ID3D11Texture2D* GetDXTexture() const;

protected:
    // Support for construction.
    ID3D11Texture2D* CreateSharedDXObject(ID3D11Device* device) const;
    void CreateStaging(ID3D11Device* device, D3D11_TEXTURE2D_DESC const& tx);
    void CreateSRView(ID3D11Device* device, D3D11_TEXTURE2D_DESC const& tx);
    void CreateUAView(ID3D11Device* device, D3D11_TEXTURE2D_DESC const& tx);
};

inline Texture2* DX11Texture2::GetTexture() const
{
    return static_cast<Texture2*>(mGTObject);
}

inline ID3D11Texture2D* DX11Texture2::GetDXTexture() const
{
    return static_cast<ID3D11Texture2D*>(mDXObject);
}

}