[idd] rewrite to support DirectX12 copy

idd/LGIdd/CInteropResource.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <Windows.h>
+#include <wdf.h>
+#include <wrl.h>
+#include <memory>
+
+#include "CD3D11Device.h"
+#include "CD3D12Device.h"
+#include "CD3D12CommandQueue.h"
+
+using namespace Microsoft::WRL;
+
+#define LG_MAX_DIRTY_RECTS 256
+
+class CInteropResource
+{
+  private:
+    std::shared_ptr<CD3D11Device> m_dx11Device;
+    std::shared_ptr<CD3D12Device> m_dx12Device;
+
+    /* this value is likely released, it is only used to check if the texture supplied
+    is different, do not rely on it pointing to valid memory */
+    void * m_srcTex;
+
+    ComPtr<ID3D12Resource > m_d12Res;
+    D3D11_TEXTURE2D_DESC    m_format;
+    ComPtr<ID3D11Fence    > m_d11Fence;
+    ComPtr<ID3D12Fence    > m_d12Fence;
+    UINT64                  m_fenceValue;
+    bool                    m_ready;
+
+    RECT     m_dirtyRects[LG_MAX_DIRTY_RECTS];
+    unsigned m_nbDirtyRects;
+
+  public:
+    bool Init(std::shared_ptr<CD3D11Device> dx11Device, std::shared_ptr<CD3D12Device> dx12Device, ComPtr<ID3D11Texture2D> srcTex);
+    void Reset();
+
+    bool IsReady() { return m_ready; }
+    bool Compare(const ComPtr<ID3D11Texture2D>& srcTex);
+    void Signal();
+    void Sync(CD3D12CommandQueue& queue);
+    void SetFullDamage();
+
+    const ComPtr<ID3D12Resource>& GetRes() { return m_d12Res; }
+    const D3D11_TEXTURE2D_DESC& GetFormat() { return m_format; }
+};