ROP_Node.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        ROP Library (C++)
 *
 * COMMENTS:    The base class for all Render Operators
 *
 */

#ifndef __ROP_Node_h__
#define __ROP_Node_h__

#include "ROP_API.h"
#include <OP/OP_Network.h>
#include <CH/CH_Manager.h>
#include "ROP_Verbose.h"
#include "ROP_RenderItem.h"

class OP_OperatorTable;
class OP_TemplatePair;
class IMG_Raster;
class UT_Interrupt;
class UT_IStream;

class ROP_Verbose;
class ROP_Node;
class ROP_ExecuteContext;
class ROP_IFD;
class ROP_IFDBase;
class ROP_SohoOp;
class ROP_RenderCmdParms;
class ROP_RenderItem;
class ROP_RenderList;
class ROP_RenderDepParms;
class GU_DetailHandle;
class TAKE_Take;
class TIL_Sequence;
class IMG_Format;
class IMG_TileOptions;
class IMG_FileParms;

extern "C" {
    SYS_VISIBILITY_EXPORT extern void   newDriverOperator(OP_OperatorTable *table);
};

enum  ROP_RENDER_CODE
{
    ROP_ABORT_RENDER = 0,       // Stop rendering
    ROP_CONTINUE_RENDER = 1,    // Go on to the next frame
    ROP_RETRY_RENDER = 2        // Retry this frame (primarily for network)
};

enum ROP_RenderMode
{
    ROP_RM_RENDER_CONTROLS,
    ROP_RM_RENDER,
    ROP_RM_PREVIEW,
    ROP_RM_VIEWPORT,
    ROP_RM_BG_RENDER,
    ROP_RM_START,
    ROP_RM_END,
    RENDER_RM_PRM,
    RENDER_RM_GETRASTER
};

enum ROP_RenderEventType
{
    ROP_EVENT_PRE_RENDER,
    ROP_EVENT_PRE_FRAME,
    ROP_EVENT_POST_FRAME,
    ROP_EVENT_POST_WRITE,
    ROP_EVENT_POST_RENDER,
    ROP_EVENT_COUNT
};

enum
{
    ROP_NODE_RENDER,
    ROP_NODE_PREVIEW,
    ROP_NODE_RENDER_CTRL,
    ROP_NODE_TRANGE,
    ROP_NODE_FRANGE,
    ROP_NODE_TAKE,
    ROP_NODE_MAXPARMS
};

typedef void    (*ROP_ExecuteOverride)(ROP_Node *me, fpreal time, void *data);
typedef void    (*ROP_RenderButtonCB)(ROP_Node *, ROP_RenderMode);
typedef bool    (*ROP_RenderEventCallback)(
                    ROP_Node *node,
                    ROP_RenderEventType event,
                    fpreal time,
                    void *data);

#define FLT_PARM(name, vi, t)   \
                { return evalFloat(name, vi, t); }
#define FLT_SET(name, vi, t, val)       \
                { setFloat(name, vi, t, val); }
#define INT_SET(name, vi, t, val)       \
                { setInt(name, vi, t, val); }

#define INT_PARM(name, vi, t) \
                { return evalInt(name, vi, t); }

#define INT_SET(name, vi, t, val) \
                { setInt(name, vi, t, val); }

#define STR_PARM(name, vi, t) \
                { evalString(str, name, vi, t); }

//___________________________________________________________________________

class ROP_SohoOutput;
class SOHO_IPRList;
class ROP_OpenGL;

class ROP_API ROP_Node : public OP_Network
{
public:
    // Standard OP_Network stuff:
    static const char   *theChildTableName;
    const char          *getChildType() const override;
    const char          *getOpType() const override;

    OP_OpTypeId          getChildTypeID() const override;
    OP_OpTypeId          getOpTypeID() const override;
        
    //  Nobody should have to override this, but it's public for other people

    bool                 updateParmsFlags() override;
    OP_DataType          getCookedDataType() const override;
    void                *getCookedData(OP_Context &context) override;

    // The castToROPIFD() method returns a pointer to an IFD node or NULL
    // if the ROP is not an IFD ROP.  If a pointer is returned it may be
    // a representative node, and care must be taken to not confuse the
    // returned node with the node on which the method was called.
    // TODO: check places that store the return of this function.
    virtual ROP_IFD     *castToROPIFD();
    virtual ROP_IFDBase *castToROPIFDBase();
    virtual ROP_SohoOp  *castToROPSoho();
    virtual ROP_OpenGL  *castToROPOpenGL();

    virtual bool         hasImageOutput();

    // Returns true if rendering will overwrite any existing files.
    virtual bool         detectIfExistingOutputFiles();
    // Runs through the output sequence deleting any matching files.
    virtual void         deleteExistingOutputFiles();

    static void          buildOperatorTable(OP_OperatorTable &table);
    static OP_Operator  *getManagementOperator();
    static OP_Operator  *getCHOPManagementOperator();
    static OP_Operator  *getCOP2ManagementOperator();
    static OP_Operator  *getDOPManagementOperator();
    static void          addSOPManagementOperators(OP_OperatorTable *table);
    static OP_Operator  *getLOPSaveOperator();
    static OP_Operator  *getLOPRenderOperator();
    static void          buildGameOperatorTable(OP_OperatorTable &table);
    static void          initSimulationOPs();
    //
    // The following method will return 1 if the raster was successfully
    //  generated.  Otherwise, it will return 0.
    //  If the OP is incapable of generating a raster, an error will be
    //  generated.
    int                  renderFile(OP_Context &ctx, float aspect,
                                    const char *file);

    /// Reference one parameter. However, for ROPs, we don't want to
    /// reference the render button.
    bool                 referenceSingleParameter(OP_Parameters *from,
                                int parm_idx,
                                const char *relative_path = NULL) override;

    OP_ERROR             execute(fpreal now, ROP_Verbose *verbose=NULL);
    OP_ERROR             executeSingle(fpreal time,
                                       ROP_Verbose *verbose=NULL,
                                       SOHO_IPRList *ipr=0,
                                       ROP_SohoOutput *out=0,
                                       bool generate=false);

    // Execute full will perform a render for the viewport or render menu.
    //  1) If not a sequence render, force background rendering
    //  2) Call the render manager to execute the render network
    //  3) Restore things
    OP_ERROR             executeFull(fpreal now, bool sequence = false);

    // These calling mechanisms allow us to start an execute, then call
    // nextExecute() on our own time, finishing with endExecute().  This allows
    // callers to do things between renders...
    ROP_ExecuteContext  *getExecuteContext() { return myEContext; }
    void                 setExecuteContext(ROP_ExecuteContext *c)
                         { myEContext = c; }

    void                 setExecuteOverride(ROP_ExecuteOverride f, void *d)
                         { myExecuteOverride = f;
                           myExecuteOverrideData = d;
                         }
    void                 setPreExecuteOverride(ROP_ExecuteOverride f, void *d)
                         { myPreExecuteOverride = f;
                           myPreExecuteOverrideData = d;
                         }
    void                 setPostExecuteOverride(ROP_ExecuteOverride f, void *d)
                         { myPostExecuteOverride = f;
                           myPostExecuteOverrideData = d;
                         }
    OP_ERROR             startExecute(fpreal now, ROP_Verbose *verbose = NULL);
    OP_ERROR             nextExecute(int &again);
    OP_ERROR             endExecute(int &again);

    void                         setRenderMode(ROP_RenderMode mode)
                                 {
                                     myRenderMode = mode;
                                 }

    ROP_RenderMode               getRenderMode()
                                 {
                                     return myRenderMode;
                                 }

    void                         setRenderOutput(UT_String &);
    UT_String                   &getRenderOutput();
    UT_String                   &getRenderDevice();
    UT_String                   &getRenderSuffix();
    void                         setRenderResX(int x);
    void                         setRenderResY(int y);
    int                          getRenderResX();
    int                          getRenderResY();
    void                         setRenderAspect(float aspect);
    float                        getRenderAspect();

    virtual void         getRenderedImageInfo(TIL_Sequence &seq);
    
    // The following methods have to be public for Remote
    virtual void                 SETDORANGE(int val)
                                 { INT_SET("trange", 0, 0, val) }
    virtual int                  DORANGE()
                                 {
                                     if(myOverrideFrameRangeFlag)
                                         return 1;
                                     initRenderDependencyVars(CHgetEvalTime());
                                     return myCachedDoRange;
                                 }

    virtual fpreal      FSTART()
                {
                    if(myOverrideFrameRangeFlag)
                        return myOverrideStartFrame;
                    initRenderDependencyVars(CHgetEvalTime());
                    return myCachedStart;
                }
    virtual fpreal      FEND()
                {
                    if(myOverrideFrameRangeFlag)
                        return myOverrideEndFrame;
                    initRenderDependencyVars(CHgetEvalTime());
                    return myCachedEnd;
                }

    virtual fpreal      FINC()
                {
                    if(myOverrideFrameRangeFlag)
                        return myOverrideFrameInc;
                    initRenderDependencyVars(CHgetEvalTime());
                    return myCachedInc;
                }
    virtual bool        SETROPCOOK();

    
    static int                   doRenderCback(void *data, int index,
                                               fpreal time,
                                               const PRM_Template *);

    static int                   doRenderBackgroundCback(void *data, int index,
                                               fpreal time,
                                               const PRM_Template *);
    static int                   doRenderDialog(void *data, int index,
                                                fpreal time,
                                                const PRM_Template *);

    static PRM_Template         *getROPbaseTemplate();
    static PRM_Template         *getROPscriptTemplate();
    static OP_TemplatePair      *getROPcop2Template();
    static CH_LocalVariable      myVariableList[];
   
    bool                         executePreRenderScript(fpreal ttime);
    bool                         executePreFrameScript(fpreal ttime);
    bool                         executePostFrameScript(fpreal ttime);
    bool                         executePostWriteScript(fpreal ttime);
    bool                         executePostRenderScript(fpreal ttime);
    bool                         executeIPRStopScript(fpreal ttime);

    static void          buildRibVersionMenu(PRM_Name *menu, int max,
                                             bool for_archive=false);

    //Absolute Width
    fpreal               getW() const override;
    //Absolute Height
    fpreal               getH() const override;

    // This adds render items to a ordered list. The list is traversed from
    // 1 -> entries to render. 
    virtual void         buildRenderDependencies(const ROP_RenderDepParms &p);

    virtual void         postProcessList( ROP_RenderList &list,
                                          const ROP_RenderDepParms &p);

    virtual void         initRenderDependencies();
    virtual void         cleanupRenderDependencies();
    
            void         addJobFrames(const char *job_name,
                                      const char *frame_string);

    static void          setDependencyRenderFlag(bool f);
    static bool          getDependencyRenderFlag();

    static void          setFrameByFrameFlag(bool f);
    static bool          getFrameByFrameFlag();

    static void          setRenderScriptFlag(bool enable);
    static bool          getRenderScriptFlag();

    static void          setOutputResolutionScale(fpreal xscale,fpreal yscale);
    static void          getOutputResolutionScale(float &xs, float &ys);

    virtual bool         getOutputResolution(int &x, int &y)
                            { x = y = 0; return false; }
    virtual void         getOutputFile(UT_String & /*name*/) { }

    // three levels - 0 = low/fastest, 1 = med/fast, 2 = normal
    static void          setRenderQuality(int quality);
    int                  getRenderQuality();

    // Override the frame range used by this node
    void                 overrideFrameRange(bool enable,
                                            fpreal s=1.0, fpreal e=1.0,
                                            fpreal i=1.0);
    

    // Return true if the output is currently overridden
    bool                 isOutputOverridden() const
                            { return myOverrideOutputFlag; }

    // Override the output filename for this node. Used by the hscript render
    // -o command.
    virtual void         overrideOutput(bool enable, const char *fname=0);

    // Return the overriden filename. 'fname' is NOT modified if this function
    // returns false. Deprecated, use getOutputOverrideEx() instead.
    bool                 getOutputOverride(
                            UT_String &fname,
                            fpreal t,
                            bool expand = true) const;

    // getOutputOverrideEx() differs from getOutputOverride() in that it will
    // perform the necessary parm evaluation as well so that we string result
    // will always returned. Since this requires expansion, it will always call
    // getOutputOverride(...,expand=true).
    //
    // For compatibility, it returns true if the result was overridden, false
    // otherwise. Method is non-const since it may add warnings upon failure to
    // create the output directory.
    bool                 getOutputOverrideEx(
                            UT_String &result,
                            fpreal t,
                            const char *output_parm_name,
                            const char *mkdir_parm_name);

    virtual void         overrideDevice(bool enable, bool interactive=false,
                                        const char *devicestr=0);
    bool                 getDeviceOverride(UT_String &str, fpreal t, 
                                           bool expand = true) const;

    static void          setRenderButtonCB(ROP_RenderButtonCB cb);

    void                 inputConnectChanged(int which) override;
    
    void                 getNodeSpecificInfoText(OP_Context &context,
                                OP_NodeInfoParms &iparms) override;
    void                 fillInfoTreeNodeSpecific(UT_InfoTree &tree, 
                                const OP_NodeInfoTreeParms &parms) override;

    virtual bool         getGeometryHandle(const char *path, fpreal t,
                                           GU_DetailHandle &gdh,
                                           UT_DMatrix4 &world_xform)
                             { return(false); }

    // forces a BG render in executeSingle().
    void                 forceBackgroundRender(bool f = true)
                             { myForceBackgroundRender = f; }
    bool                 getForceBackgroundRender() const
                             { return myForceBackgroundRender; }

    // Add some additional inputs to the ROP (used by Fetch and Subnet).
    void                 setTemporaryInputs(const UT_ValArray<ROP_Node *> &in)
                             { myTemporaryInputs = in; }
    void                 clearTemporaryInputs() { myTemporaryInputs.entries(0);}
    
    /// Render this node using the parameters set in render_parms.
    bool                 renderCommand(ROP_RenderCmdParms &render_parms);

    // Copy the errors from this node into an error manager.  This method
    // is used to save off errors before they're cleared.
    void                 copyErrorsInto(UT_ErrorManager &error_manager)
                        { error_manager.stealErrors(*getLockedErrorManager()); }

    // Append the errors from an error manager into this node.
    void                 copyErrorsFrom(UT_ErrorManager &error_manager)
                        { getLockedErrorManager()->stealErrors(error_manager); }

    // Get the last render dependency item that cooked in this node in the
    // current cook.
    ROP_RenderItemHandle getLastRenderDepItem() const
                            { return myLastRenderItem; }

    /// Helper that appends the inputs and other rop nodes that
    /// this node depends on to the give list.
    virtual bool        isRenderDependentOnNode(ROP_Node *node,
                                  const ROP_RenderDepParms &parms);

    /// Adds a render event callback to the this node. The function will be
    /// invoked after each of the render scripts, e.g. pre-render or post-fame.
    void                addRenderEventCallback(
                                ROP_RenderEventCallback callback,
                                void* data,
                                bool run_before_script);

    /// Removes a render event callback that was added previously
    void                removeRenderEventCallback(
                                ROP_RenderEventCallback callback,
                                void* data);
   
    static void         setColorCorrectionIPGamma(bool enable, fpreal gamma);
    static fpreal       getColorCorrectionIPGamma();
    static void         setColorCorrectionIPLUT(bool enable, const char *lut);
    static const char  *getColorCorrectionIPLUT();

    static void         setColorCorrectionEnvVariables(bool set);
    static void         setFPSVariable(bool do_set = 0, fpreal frame_inc = 1);

    virtual ROP_RENDER_CODE rerenderFrame();

protected:
             ROP_Node(OP_Network *parent, const char *name, OP_Operator *entry);
            ~ROP_Node() override;

    // These OPs don't actually cook.  No data, nothing.  The renderFile()
    //  method is the closest thing to a cook.
    OP_ERROR             cookMe(OP_Context &context) override;
    OP_ERROR             bypassMe(OP_Context &context,
                                  int &copied_input) override;
    OP_ERROR             initFrameRange(fpreal now, ROP_ExecuteContext &ctx);

    void                 onCreated() override;

    
    void                 addSystemError(const char *msg = 0)
                         { getLockedErrorManager()->systemError(msg);}
    void                 addError(int code, const char *msg = 0)
                         { getLockedErrorManager()->addError(ROP_OPTYPE_NAME, code, msg);}
    void                 addWarning(int code, const char *msg = 0)
                         { getLockedErrorManager()->addWarning(ROP_OPTYPE_NAME, code, msg); }
    void                 addMessage(int code, const char *msg = 0)
                         { getLockedErrorManager()->addMessage(ROP_OPTYPE_NAME, code, msg); }

    bool                 evalVariableValue(UT_String &v, int index,
                                           int thread) override
                         { return OP_Network::evalVariableValue(v, index, thread); }
    bool                 evalVariableValue(fpreal &v, int index,
                                           int thread) override;

    // The endRender() method will always be called if startRender succeeds.
    virtual int                 startRender(int nframes, fpreal tstart,
                                            fpreal tend);
    virtual ROP_RENDER_CODE     renderFrame(fpreal time,
                                            UT_Interrupt *boss = 0);
    virtual ROP_RENDER_CODE     endRender();


    TAKE_Take                   *applyRenderTake(const char *take);
    void                         restorePreviousTake(TAKE_Take *take);

    void                         initRenderDependencyVars(fpreal t);
    virtual void                 doInitRenderDependencyVars(fpreal t);

    // Internal helper method that simply traverses our inputs and calls
    // buildRenderDependencies on them.
    virtual void         buildInputRenderDependencies(
                                               const ROP_RenderDepParms &parms);

    bool                 matchingLastRenderParms(
                                               const ROP_RenderDepParms &parms);
    void                 setLastRenderDepItem(ROP_RenderItemHandle item)
                            { myLastRenderItem = item; }
    void                 clearLastRenderDep();
     
    // This method returns the image device required to render it to an
    // interactive window (an mplay window, for example).
    virtual const char  *getInteractiveImageDevice() const { return ""; }
    
    virtual void        FSTART_SET(fpreal val)
                { FLT_SET("f", 0, 0, val); }
    virtual void        FEND_SET(fpreal val)
                { FLT_SET("f", 1, 0, val); }
    virtual void        FINC_SET(fpreal val)
                { FLT_SET("f", 2, 0, val); }
    virtual void        DORANGE_SET(int val)
                { INT_SET("trange", 0, 0, val); }

    virtual void        RENDER_TAKE(UT_String &take)
                { evalString(take, "take", 0, 0.0f); }

    UT_String                    myRenderOutput;
    UT_String                    myRenderDevice;
    UT_String                    myRenderSuffix;
    float                        myRenderAspect;
    int                          myRenderX;
    int                          myRenderY;
    ROP_RenderMode               myRenderMode;
    int                          myCurrentFrame;
    int                          myTotalFrames;
    bool                         myExecuteSingle;
    UT_String                    myJobTag;
    UT_String                    myJobFrames;

    ROP_Verbose &getRopVerbose()
                    { return myVerbose; }
    std::ostream *getVerbose() const
                    { return myVerbose.getStream(); }
    bool         getAlfred() const
                    { return myVerbose.getAlfred(); }

    int                  myCachedDoRange;
    fpreal               myCachedStart;
    fpreal               myCachedEnd;
    fpreal               myCachedInc;
    OP_VERSION           myCachedVersion;
    fpreal               myCachedTime;

protected:
    //
    //  These virtuals are methods that nobody should override...
    //  Except IPR buffers which are now saved as cooked data
    //
    //  I/O methods
    //
    void                 deleteCookedData() override;
    int                  saveCookedData(const char *, OP_Context &) override;
    int                  saveCookedData(std::ostream &os, OP_Context &,
                                        int binary = 0) override;

    // If there is a problem executing the script, then an error will be set
    // here.
    // Note that this has to remain protected (and not be made private) because
    // there are customers who inherit from ROP_Node and use this function.
    OP_ERROR     executeScript(
        UT_String &str, CH_ScriptLanguage language, fpreal time);

    int                 getNumTemporaryInputs() const
                            { return myTemporaryInputs.entries(); } 

    ROP_Node *          getTemporaryInputs(int i) const
                            { return myTemporaryInputs(i); } 

    // Create all intermediate directories for the given file path. Returns
    // false IFF it attempted to create the directories but failed to do so. In
    // that case, a warning will be added.
    bool                makeFilePathDirs(const UT_String &path);
    
    /// Override if preview is supported by rendering to 'ip'. 
    virtual bool        isPreviewAllowed() { return false; }

    
    void                applyImageFormatOptions(IMG_TileOptions &opts,
                                                const IMG_Format *fmt,
                                                fpreal t);
    void                applyImageFormatOptions(IMG_FileParms &parms,
                                                const IMG_Format *fmt,
                                                fpreal t);
        
private:
    struct EventCallbackEntry
    {
        ROP_RenderEventCallback  myCallback;
        void                    *myData;
        bool                     myRunBeforeScript;
    };

    const char          *getFileExtension(int binary) const override;

    static void  resetSimulation(OP_Node* node);

    ROP_ExecuteContext  *myEContext;
    ROP_Verbose          myVerbose;
    ROP_ExecuteOverride  myExecuteOverride;
    void                *myExecuteOverrideData;
    ROP_ExecuteOverride  myPreExecuteOverride;
    void                *myPreExecuteOverrideData;
    ROP_ExecuteOverride  myPostExecuteOverride;
    void                *myPostExecuteOverrideData;

    bool                 myForceBackgroundRender;
    
    bool                 myOverrideFrameRangeFlag;
    fpreal               myOverrideStartFrame;
    fpreal               myOverrideEndFrame;
    fpreal               myOverrideFrameInc;

    bool                 myOverrideOutputFlag;
    UT_String            myOverrideOutputName;

    bool                 myOverrideDeviceFlag;
    UT_String            myOverrideDeviceName;

    bool                 myExecuteFull;         // Recursion check
    UT_ValArray<ROP_Node *> myTemporaryInputs;
    ROP_RenderDepParms  *myLastRenderParms;
    ROP_RenderItemHandle myLastRenderItem;

    UT_Array<EventCallbackEntry> myRenderEventCallbacks;

    bool                 executeCallback(fpreal ttime,
                                         ROP_RenderEventType event_type,
                                         bool before_script);
    bool                 executeParmScript(const char *parm_name,
                                           fpreal ttime,
                                           ROP_RenderEventType event_type);
    bool                 executeParmScripts(const char *parm_name,
                                            fpreal ttime,
                                            ROP_RenderEventType event_type);

    static int           doRenderCommand(CMD_Args &args, OP_Node *net,
                                         bool showerrors);

    static void          installCommands();
    static void          cmdRender(CMD_Args &args);
    static void          cmdRenderDeps(CMD_Args &args);
};

// These are the parms to the buildRenderDependencies methods.
class ROP_RenderDepParms
{
public:
                     ROP_RenderDepParms() :
                         myOrder(NULL),
                         myFullStart(0.0f),
                         myFullEnd(0.0f),
                         myFullFrameInc(0.0f),
                         myStart(0.0f),
                         myEnd(0.0f),
                         myFrameInc(0.0f),
                         myDoInputs(false),
                         myIgnoreBypass(true),
                         myIgnoreLocks(false),
                         myFrameMerge(true),
                         myRenderSerial(-1),
                         myDepParent(NULL),
                         myTopLevelRop(NULL),
                         myFirstFrameFlag(true) { }

    // copy constructor; some members are initilized to NULL rather than copied.
                     ROP_RenderDepParms(const ROP_RenderDepParms &copy)
                         : myRenderSerial(-1)
                        {
                            *this = copy;
                        }
                    ~ROP_RenderDepParms()
                     {
                         myDepParent = NULL;
                     }
    
    // Set/Get RenderList
    void             setOrder(ROP_RenderList &order) { myOrder = &order; }
    ROP_RenderList  &getOrder() const { UT_ASSERT(myOrder); return *myOrder; }

    // Set/Get Frame Range
    void             setFullFrameRange(fpreal start, fpreal end, fpreal finc)
                     { myFullStart = start; myFullEnd = end; myFullFrameInc = finc; }
    void             setFrameRange(fpreal start, fpreal end, fpreal finc)
                     { myStart = start; myEnd = end; myFrameInc = finc; }
    fpreal           getFullStart()         const { return myFullStart; }
    fpreal           getFullEnd()           const { return myFullEnd; }
    fpreal           getFullFrameInc()  const { return myFullFrameInc; }
    fpreal           getStart()     const { return myStart; }
    fpreal           getEnd()       const { return myEnd; }
    fpreal           getFrameInc()  const { return myFrameInc; }

    void            setFullAscendingFrameRange(ROP_Node &rop)
                    {
                        fpreal start = myFullStart;
                        fpreal end = myFullEnd;
                        fpreal finc = myFullFrameInc;
                        if(rop.DORANGE()==2)
                        {
                            start = rop.FSTART();
                            end = rop.FEND();
                            finc = rop.FINC();
                        }
                        if (start > end)
                            UTswap(start, end);
                        if (finc <= 0)
                            finc = 1.0;
                        setFrameRange(start, end, finc);
                    }

    // Set/Get Input traversal flags
    void             setDoInputsFlag(bool do_inputs) { myDoInputs = do_inputs; }
    bool             getDoInputs()         const { return myDoInputs; }

    // Set/Get TopLevel ROP -- this is the top most ROP that is traversed.  This
    // is used to prevent subnet traversals to go outside this ROP.  Only
    // useful when DoInputs is off.
    void             setTopLevelRop(ROP_Node *rop) { myTopLevelRop = rop; }
    ROP_Node        *getTopLevelRop() const        { return myTopLevelRop; }

    // Set/Get Ignore flags
    void             setIgnoreFlags(bool ignore_bypass, bool ignore_locks)
                     {
                         myIgnoreBypass = ignore_bypass;
                         myIgnoreLocks  = ignore_locks;
                     }
    bool             getIgnoreBypass() const { return myIgnoreBypass; }
    bool             getIgnoreLocks()  const { return myIgnoreLocks; }

    // Set/Get Render Serial number
    void             setRenderSerial(int render_serial) 
                     { myRenderSerial = render_serial; }
    int              getRenderSerial() const { return myRenderSerial; }

    // Set/Get Dependency parent
    void             setDepParent(const ROP_RenderItemHandle &dep_parent)
                     { myDepParent = dep_parent; }
    const ROP_RenderItemHandle &getDepParent() const { return myDepParent; }

    void             setFirstFrame(bool first) { myFirstFrameFlag = first; }
    bool             isFirstFrame() const { return myFirstFrameFlag; }

    void             setFrameMerge(bool merge)  { myFrameMerge = merge; }
    bool             getFrameMerge() const      { return myFrameMerge; }

    const ROP_RenderDepParms &operator=(const ROP_RenderDepParms &copy)
        {
            myOrder = copy.myOrder;
            myDepParent = copy.myDepParent;
            myTopLevelRop = copy.myTopLevelRop;
            myFullStart = copy.myFullStart;
            myFullEnd = copy.myFullEnd;
            myFullFrameInc = copy.myFullFrameInc;
            myStart = copy.myStart;
            myEnd = copy.myEnd;
            myFrameInc = copy.myFrameInc;
            myRenderSerial = copy.myRenderSerial;
            myDoInputs = copy.myDoInputs;
            myIgnoreBypass = copy.myIgnoreBypass;
            myIgnoreLocks = copy.myIgnoreLocks;
            myFrameMerge = copy.myFrameMerge;
            myFirstFrameFlag = copy.myFirstFrameFlag;
            return *this;
        }
    bool operator==(const ROP_RenderDepParms &copy)
        {
            return (myFullStart == copy.myFullStart &&
                    myFullEnd == copy.myFullEnd &&
                    myFullFrameInc == copy.myFullFrameInc &&
                    myStart == copy.myStart &&
                    myEnd == copy.myEnd &&
                    myFrameInc == copy.myFrameInc &&
                    myDoInputs == copy.myDoInputs &&
                    myIgnoreBypass == copy.myIgnoreBypass &&
                    myIgnoreLocks == copy.myIgnoreLocks &&
                    myFrameMerge == copy.myFrameMerge &&
                    myRenderSerial == copy.myRenderSerial);
        }
        
private:
    ROP_RenderList      *myOrder;
    ROP_RenderItemHandle myDepParent;
    ROP_Node            *myTopLevelRop;
    fpreal               myFullStart;
    fpreal               myFullEnd;
    fpreal               myFullFrameInc;
    fpreal               myStart;
    fpreal               myEnd;
    fpreal               myFrameInc;
    int                  myRenderSerial;
    bool                 myDoInputs;
    bool                 myIgnoreBypass;
    bool                 myIgnoreLocks;
    bool                 myFrameMerge;
    bool                 myFirstFrameFlag;
};

#undef FLT_PARM
#undef INT_PARM
#undef STR_PARM
#undef FLT_SET
#undef INT_SET

#endif