ROP_Dumper.h

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/*
* Copyright (c) 2024
*       Side Effects Software Inc.  All rights reserved.
*
* Redistribution and use of Houdini Development Kit samples in source and
* binary forms, with or without modification, are permitted provided that the
* following conditions are met:
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*    this list of conditions and the following disclaimer.
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*    written permission.
*
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#ifndef __ROP_Dumper_h__
#define __ROP_Dumper_h__

#include <ROP/ROP_Node.h>

#define STR_PARM(name, idx, vi, t) \
                { evalString(str, name, &ifdIndirect[idx], vi, t); }
#define INT_PARM(name, idx, vi, t) \
                { return evalInt(name, &ifdIndirect[idx], vi, t); }

#define STR_SET(name, idx, vi, t) \
                { setString(str, name, ifdIndirect[idx], vi, t); }
#define STR_GET(name, idx, vi, t) \
                { evalStringRaw(str, name, &ifdIndirect[idx], vi, t); }

class OP_TemplatePair;
class OP_VariablePair;

namespace HDK_Sample {

class ROP_Dumper : public ROP_Node {
public:

    /// Provides access to our parm templates.
    static OP_TemplatePair      *getTemplatePair();
    /// Provides access to our variables.
    static OP_VariablePair      *getVariablePair();
    /// Creates an instance of this node.
    static OP_Node              *myConstructor(OP_Network *net, const char*name,
                                                OP_Operator *op);

protected:
             ROP_Dumper(OP_Network *net, const char *name, OP_Operator *entry);
            ~ROP_Dumper() override;

    /// Called at the beginning of rendering to perform any intialization 
    /// necessary.
    /// @param  nframes     Number of frames being rendered.
    /// @param  s           Start time, in seconds.
    /// @param  e           End time, in seconds.
    /// @return             True of success, false on failure (aborts the render).
    int                 startRender(int nframes, fpreal s, fpreal e) override;

    /// Called once for every frame that is rendered.
    /// @param  time        The time to render at.
    /// @param  boss        Interrupt handler.
    /// @return             Return a status code indicating whether to abort the
    ///                     render, continue, or retry the current frame.
    ROP_RENDER_CODE     renderFrame(fpreal time, UT_Interrupt *boss) override;

    /// Called after the rendering is done to perform any post-rendering steps
    /// required.
    /// @return             Return a status code indicating whether to abort the
    ///                     render, continue, or retry.
    ROP_RENDER_CODE     endRender() override;

public:

    /// A convenience method to evaluate our custom file parameter.
    void  OUTPUT(UT_String &str, fpreal t)
    { STR_PARM("file",  0, 0, t) }

private:
    static int          *ifdIndirect;
    fpreal               myEndTime;
};

}       // End HDK_Sample namespace


#undef STR_PARM
#undef STR_SET
#undef STR_GET

#endif