Program Listing for File d3d12-extension.h

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#pragma once

#include <d3d12.h>

namespace gpa {
namespace d3d12_state_tracker {

class D3D12ExtensionTracker
{
protected:
    enum ExtensionPatternState {
        STATE_IDLE,        // default entry/reset state
        STATE_CCR_SEEN,    // set after we see the CreateCommitteResource call
        STATE_MAP_SEEN,    // set after we see the Map call
        STATE_UNMAP_SEEN,  // set after we see the Unmap call
        STATE_CCPS_SEEN,   // set after we see the CreateComputePipelineState call -- if we made it to this state, the extension call pattern was matched
    };

    ExtensionPatternState mExtensionPatternState;
    ID3D12Resource* mCurrentCommittedResource;

public:
    static constexpr GUID GUID_ExtResourceGuid = {0x867d402, 0x872b, 0x4265, {0xbf, 0x7a, 0x4c, 0x9, 0xd8, 0x51, 0x7b, 0x75}};

public:
    D3D12ExtensionTracker();
    ~D3D12ExtensionTracker();

    virtual void OnMap();
    virtual void OnUnmap(ID3D12Resource* resource);
    virtual void OnCreateCommittedResource(ID3D12Resource* resource);
    virtual void OnCreateComputePipelineState();
    virtual void OnPostCreateComputePipelineState(ID3D12PipelineState& pipelineState);

    bool IsPatternMatched() const;
    void Reset();
};

}  // namespace d3d12_state_tracker
}  // namespace gpa