CWE-ou-minkata/Sources/Plasma/PubUtilLib/plSDL/plSDLMgr.cpp

/*==LICENSE==*

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*==LICENSE==*/
#include "hsStream.h"
#include "plSDL.h"
#include "pnNetCommon/plNetApp.h"
#include "pnNetCommon/pnNetCommon.h"
#include <algorithm>

/////////////////////////////////////////////////////////////////////////////////
// SDL MGR
/////////////////////////////////////////////////////////////////////////////////

//
//
//
plSDLMgr::plSDLMgr() : fSDLDir("SDL"), fNetApp(nil), fBehaviorFlags(0)
{

}

//
//
//
plSDLMgr::~plSDLMgr()
{
    DeInit();
}

bool plSDLMgr::Init( uint32_t behaviorFlags )
{
    fBehaviorFlags = behaviorFlags;
    plSDLParser parser;
    return parser.Parse();
}

void plSDLMgr::DeInit()
{
    IDeleteDescriptors(&fDescriptors);
}

//
// delete all descriptors
//
void plSDLMgr::IDeleteDescriptors(plSDL::DescriptorList* dl)
{
    std::for_each( dl->begin(), dl->end(),
        [](plStateDescriptor* sd) { delete sd; }
    );
    dl->clear();
}


//
// STATIC
//
plSDLMgr* plSDLMgr::GetInstance()
{
    static plSDLMgr gSDLMgr;
    return &gSDLMgr;
}

//
// search latest and legacy descriptors for one that matches.
// if version is -1, search for latest descriptor with matching name
//
plStateDescriptor* plSDLMgr::FindDescriptor(const plString& name, int version, const plSDL::DescriptorList * dl) const
{
    if (name.IsNull())
        return nil;

    if ( !dl )
        dl = &fDescriptors;

    plStateDescriptor* sd = nil;

    plSDL::DescriptorList::const_iterator it;

    int highestFound = -1;
    for(it=(*dl).begin(); it!= (*dl).end(); it++)
    {
        if (!(*it)->GetName().CompareI(name) )
        {
            if ( (*it)->GetVersion()==version )
            {
                sd = *it;
                break;
            }
            else if ( version==plSDL::kLatestVersion && (*it)->GetVersion()>highestFound )
            {
                sd = *it;
                highestFound = (*it)->GetVersion();
            }
        }
    }

    return sd;
}

//
// write latest descriptors to a stream.
// return number of bytes
//
int plSDLMgr::Write(hsStream* s, const plSDL::DescriptorList* dl)
{
    int pos=s->GetPosition();

    if (dl==nil)
        dl=&fDescriptors;

    uint16_t num=dl->size();
    s->WriteLE(num);

    plSDL::DescriptorList::const_iterator it;
    for(it=dl->begin(); it!= dl->end(); it++)
        (*it)->Write(s);    

    int bytes=s->GetPosition()-pos;
    if (fNetApp)
    {
        hsLogEntry(fNetApp->DebugMsg("Writing %d SDL descriptors, %d bytes", num, bytes));
    }
    return bytes;
}

//
// read descriptors into provided list 
// return number of bytes
//
int plSDLMgr::Read(hsStream* s, plSDL::DescriptorList* dl)
{
    int pos=s->GetPosition();

    if (dl==nil)
        dl=&fDescriptors;

    // clear dl
    IDeleteDescriptors(dl);

    uint16_t num;
    try
    {       
        // read dtor list
        s->ReadLE(&num);

        int i;
        for(i=0;i<num;i++)
        {
            plStateDescriptor* sd=new plStateDescriptor;
            if (sd->Read(s))
                dl->push_back(sd);
            else
                delete sd; // well that sucked
        }
    }
    catch (std::exception &e)
    {
        if (fNetApp)
        {
            hsLogEntry(fNetApp->DebugMsg("Something bad happened while reading SDLMgr data: %s", e.what()));
        }
        else
        {
            DebugMsg("Something bad happened while reading SDLMgr data: %s", e.what());
        }
        return 0;
    }
    catch (...)
    {
        if (fNetApp)
        {
            hsLogEntry(fNetApp->DebugMsg("Something bad happened while reading SDLMgr data"));
        }
        return 0;
    }

    int bytes=s->GetPosition()-pos;
    if (fNetApp)
    {
        hsLogEntry(fNetApp->DebugMsg("Reading %d SDL descriptors, %d bytes", num, bytes));
    }
    return bytes;
}