WebRtcXR/Plugin~/WebRTCPlugin/GraphicsDevice/D3D12/D3D12Texture2D.h

#pragma once

#include <d3d11.h>

#include "D3D12ResourceFootprint.h"
#include "GraphicsDevice/ITexture2D.h"
#include "PlatformBase.h"
#include "WebRTCMacros.h"

namespace unity
{
namespace webrtc
{

    class D3D12Texture2D : public ITexture2D
    {
    public:
        D3D12Texture2D(uint32_t w, uint32_t h, ID3D12Resource* nativeTex, HANDLE handle, ID3D11Texture2D* sharedTex);

        virtual ~D3D12Texture2D() override
        {
            SAFE_RELEASE(m_readbackResource)
            SAFE_RELEASE(m_sharedTexture)
            CloseHandle(m_sharedHandle);
            SAFE_RELEASE(m_nativeTexture)
        }

        inline void* GetNativeTexturePtrV() override;
        inline const void* GetNativeTexturePtrV() const override;
        inline void* GetEncodeTexturePtrV() override;
        inline const void* GetEncodeTexturePtrV() const override;
        HRESULT CreateReadbackResource(ID3D12Device* device);
        inline ID3D12Resource* GetReadbackResource() const;
        inline const D3D12ResourceFootprint* GetNativeTextureFootprint() const;
        HANDLE GetHandle() const { return m_sharedHandle; }
        D3D12_RESOURCE_DESC GetDesc() const { return m_nativeTexture->GetDesc(); }

    private:
        ID3D12Resource* m_nativeTexture;
        HANDLE m_sharedHandle;
        ID3D11Texture2D* m_sharedTexture; // Shared between DX11 and DX12

        // For CPU Read
        ID3D12Resource* m_readbackResource;
        D3D12ResourceFootprint m_nativeTextureFootprint;
    };

    //---------------------------------------------------------------------------------------------------------------------

    void* D3D12Texture2D::GetNativeTexturePtrV() { return m_nativeTexture; }
    const void* D3D12Texture2D::GetNativeTexturePtrV() const { return m_nativeTexture; };

    void* D3D12Texture2D::GetEncodeTexturePtrV() { return m_sharedTexture; }
    const void* D3D12Texture2D::GetEncodeTexturePtrV() const { return m_sharedTexture; }
    ID3D12Resource* D3D12Texture2D::GetReadbackResource() const { return m_readbackResource; }
    const D3D12ResourceFootprint* D3D12Texture2D::GetNativeTextureFootprint() const { return &m_nativeTextureFootprint; }

} // end namespace webrtc
} // end namespace unity