AAX_PageTableUtilities.h

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/*================================================================================================*/
/*
 *  Copyright 2016-2017, 2023 Avid Technology, Inc.
 *  All rights reserved.
 *  
 *  CONFIDENTIAL: this document contains confidential information of Avid. Do
 *  not disclose to any third party. Use of the information contained in this
 *  document is subject to an Avid SDK license.
 */
 
#ifndef AAXLibrary_AAX_PageTableUtilities_h
#define AAXLibrary_AAX_PageTableUtilities_h
 
#include "AAX_CString.h"
#include "AAX.h"
 
namespace AAX
{
    template <class T1, class T2>
    inline bool PageTableParameterMappingsAreEqual(const T1& inL, const T2& inR)
    {
        AAX_Result errL = AAX_SUCCESS;
        AAX_Result errR = AAX_SUCCESS;
        
        int32_t numPagesL = -1;
        int32_t numPagesR = -1;
        errL = inL.GetNumPages(numPagesL);
        errR = inR.GetNumPages(numPagesR);
        
        if (errL != errR || numPagesL != numPagesR) { return false; }
        else if (AAX_SUCCESS != errL) { return true; } // can't get page data from either table
        
        for (int32_t i = 0; i < numPagesL; ++i)
        {
            int32_t numParamsL = -1;
            int32_t numParamsR = -1;
            errL = inL.GetNumMappedParameterIDs(i, numParamsL);
            errR = inR.GetNumMappedParameterIDs(i, numParamsR);
            
            if (errL != errR || numParamsL != numParamsR) { return false; }
            else if (AAX_SUCCESS != errL) { continue; } // skip this page if equal errors were returned
            
            for (int32_t j = 0; j < numParamsL; ++j)
            {
                AAX_CString paramIdentifierL;
                AAX_CString paramIdentifierR;
                errL = inL.GetMappedParameterID(i, j, paramIdentifierL);
                errR = inR.GetMappedParameterID(i, j, paramIdentifierR);
                
                if (errL != errR || paramIdentifierL != paramIdentifierR) { return false; }
            }
        }
        
        return true;
    }
    
    template <class T1, class T2>
    inline bool PageTableParameterNameVariationsAreEqual(const T1& inL, const T2& inR)
    {
        AAX_Result errL = AAX_SUCCESS;
        AAX_Result errR = AAX_SUCCESS;
        
        int32_t numParamIdentifiersL = -1;
        int32_t numParamIdentifiersR = -1;
        errL = inL.GetNumParametersWithNameVariations(numParamIdentifiersL);
        errR = inR.GetNumParametersWithNameVariations(numParamIdentifiersR);
        
        if (errL != errR || numParamIdentifiersL != numParamIdentifiersR) { return false; }
        else if (AAX_SUCCESS != errL) { return true; } // can't get parameter name variation data from either table
        
        for (int32_t i = 0; i < numParamIdentifiersL; ++i)
        {
            AAX_CString paramIdentifierL;
            AAX_CString paramIdentifierR;
            errL = inL.GetNameVariationParameterIDAtIndex(i, paramIdentifierL);
            errL = inR.GetNameVariationParameterIDAtIndex(i, paramIdentifierR);
            
            if (errL != errR || paramIdentifierL != paramIdentifierR) { return false; }
            else if (AAX_SUCCESS != errL) { continue; } // skip this index if equal errors were returned
            
            int32_t numVariationsL = -1;
            int32_t numVariationsR = -1;
            errL = inL.GetNumNameVariationsForParameter(paramIdentifierL.Get(), numVariationsL);
            errL = inR.GetNumNameVariationsForParameter(paramIdentifierR.Get(), numVariationsR);
            
            if (errL != errR || numVariationsL != numVariationsR) { return false; }
            else if (AAX_SUCCESS != errL) { continue; } // skip this index if equal errors were returned
            
            for (int32_t j = 0; j < numVariationsL; ++j)
            {
                AAX_CString nameVariationL;
                int32_t lengthL;
                AAX_CString nameVariationR;
                int32_t lengthR;
                errL = inL.GetParameterNameVariationAtIndex(paramIdentifierL.Get(), j, nameVariationL, lengthL);
                errR = inR.GetParameterNameVariationAtIndex(paramIdentifierR.Get(), j, nameVariationR, lengthR);
                
                if (errL != errR || lengthL != lengthR || nameVariationL != nameVariationR) { return false; }
            }
        }
        
        return true;
    }
    
    template <class T1, class T2>
    inline bool PageTablesAreEqual(const T1& inL, const T2& inR)
    {
        return (PageTableParameterMappingsAreEqual(inL, inR) && PageTableParameterNameVariationsAreEqual(inL, inR));
    }
    
    template <class T>
    inline void CopyPageTable(T& to, const T& from)
    {
        to.Clear();
        
        // Copy page tables
        int32_t curPageIndex;
        from.GetNumPages(curPageIndex);
        while (0 < curPageIndex--)
        {
            to.InsertPage(0);
            
            int32_t numIDsRemaining = 0;
            from.GetNumMappedParameterIDs(curPageIndex, numIDsRemaining);
            for (int32_t curSlotIndex = 0; 0 < numIDsRemaining; ++curSlotIndex) // numIDsRemaining is decremented in the loop body
            {
                AAX_CString curParam;
                const AAX_Result getParamResult = from.GetMappedParameterID(curPageIndex, curSlotIndex, curParam);
                if (AAX_SUCCESS == getParamResult)
                {
                    to.MapParameterID(curParam.CString(), 0, curSlotIndex);
                    --numIDsRemaining;
                }
            }
        }
 
        // Copy name variations
        int32_t numParameterIdentifiers = 0;
        to.ClearParameterNameVariations();
        from.GetNumParametersWithNameVariations(numParameterIdentifiers);
        for (int32_t curParamIndex = 0; curParamIndex < numParameterIdentifiers; ++curParamIndex)
        {
            AAX_CString curParamIdentifier;
            from.GetNameVariationParameterIDAtIndex(curParamIndex, curParamIdentifier);
 
            int32_t numNameVariations = 0;
            from.GetNumNameVariationsForParameter(curParamIdentifier.Get(), numNameVariations);
 
            for (int32_t curNameVariationIndex = 0; curNameVariationIndex < numNameVariations; ++curNameVariationIndex)
            {
                int32_t curNameVariationLength;
                AAX_CString curNameVariation;
                from.GetParameterNameVariationAtIndex(curParamIdentifier.Get(), curNameVariationIndex, curNameVariation, curNameVariationLength);
                to.SetParameterNameVariation(curParamIdentifier.Get(), curNameVariation, curNameVariationLength);
            }
        }
    }
    
    template <class T>
    inline std::vector<std::pair<int32_t, int32_t> > FindParameterMappingsInPageTable(const T& inTable, AAX_CParamID inParameterID)
    {
        const AAX_CString searchParamID(inParameterID);
        std::vector<std::pair<int32_t, int32_t> > foundParamMappings;
        
        int32_t numPages = 0;
        inTable.GetNumPages(numPages);
        for (int32_t i = 0; i < numPages; ++i)
        {
            int32_t numIDsRemaining = 0;
            inTable.GetNumMappedParameterIDs(i, numIDsRemaining);
            for (int32_t curSlotIndex = 0; 0 < numIDsRemaining; ++curSlotIndex) // numIDs is decremented in the loop body
            {
                AAX_CString curParam;
                const AAX_Result getParamResult = inTable.GetMappedParameterID(i, curSlotIndex, curParam);
                if (AAX_SUCCESS == getParamResult)
                {
                    if (searchParamID == curParam)
                    {
                        foundParamMappings.push_back(std::make_pair(i, curSlotIndex));
                    }
                    
                    --numIDsRemaining;
                }
            }
        }
        
        return foundParamMappings;
    }
    
    template <class T>
    inline void ClearMappedParameterByID(T& ioTable, AAX_CParamID inParameterID)
    {
        const auto paramMappings(AAX::FindParameterMappingsInPageTable(ioTable, inParameterID));
        for (const auto& locationPair : paramMappings)
        {
            ioTable.ClearMappedParameter(locationPair.first, locationPair.second);
        }
    }
}
 
#endif