YiAssetHardware.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_ASSET_HARDWARE_H_
#define _YI_ASSET_HARDWARE_H_

#include "asset/YiAsset.h"
#include "utility/YiRtti.h"

class CYIAssetHardware : public CYIAsset
{
    friend class CYIGPULoadBufferEvent;

public:
    enum RETENTION_POLICY
    {
        RETAIN = 0,

        UNLOAD,
    };

    CYIAssetHardware();
    virtual ~CYIAssetHardware();

    virtual bool RequestHardwareLoad();

    virtual bool RequestHardwareUnload();

    virtual bool RequestInvalidate();
    
    virtual bool RequestRestore();
    
    virtual bool Prepare() override;

    std::shared_ptr<IYIGPUObject> GetGPUObject() const;

    bool IsLoadedOnGPU() const;

    RETENTION_POLICY GetRetentionPolicy() const;

    void SetRetentionPolicy(RETENTION_POLICY ePolicy);

protected:
    virtual std::shared_ptr<IYIGPUObject> CreateGPUObject() const = 0;

    virtual void ApplyRetainmentPolicy(){};

    virtual void OnLoad() override;

    bool m_bHardwareLoadRequested;

    std::shared_ptr<IYIGPUObject> m_pGPUObject;

    RETENTION_POLICY m_eRetentionPolicy;

private:
    
    YI_TYPE_BASES(CYIAssetHardware, CYIAsset)
};

#endif // _YI_ASSET_HARDWARE_H_