CWE-ou-minkata/Sources/Plasma/PubUtilLib/plSurface/hsGMaterial.cpp

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*==LICENSE==*/

#include "hsGMaterial.h"
#include <cmath>

#include "HeadSpin.h"
#include "hsMemory.h"
#include "hsResMgr.h"
#include "plLayerInterface.h"
#include "plLayer.h"
#include "plMessage/plMatRefMsg.h"
#include "plProfile.h"

plProfile_CreateTimer("MaterialAnims", "Animation", MaterialAnims);

plLayer defaultLayer;
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////

hsGMaterial::hsGMaterial() :
fLOD(0),
fCompFlags(0),
fLoadFlags(0),
fLastUpdateTime(0)
{
}

hsGMaterial::~hsGMaterial()
{
    IClearLayers();
}

plLayerInterface* hsGMaterial::GetPiggyBack(uint32_t which)
{
    return fPiggyBacks[which];
}

plLayerInterface* hsGMaterial::GetLayer(uint32_t which)
{
    return fLayers[which];
}

uint32_t hsGMaterial::IMakeExtraLayer()
{
    fLayers.ExpandAndZero(GetNumLayers()+1);
    return fLayers.GetCount();
}

void hsGMaterial::IClearLayers()
{
    fLayers.Reset();
}

void hsGMaterial::SetNumLayers(int cnt)
{
    if( cnt < fLayers.GetCount() )
        fLayers.SetCount(cnt);
    else
        fLayers.ExpandAndZero(cnt);
}

hsGMaterial* hsGMaterial::Clone()
{
    hsGMaterial* clo = CloneNoLayers();

    clo->SetNumLayers(GetNumLayers());
    
    int i;
    for( i = 0; i < GetNumLayers(); i++ )
        clo->SetLayer(fLayers[i], i);

    return clo;
}

hsGMaterial* hsGMaterial::CloneNoLayers()
{
    hsGMaterial* clo = new hsGMaterial;

    clo->fCompFlags = fCompFlags;
    clo->fLoadFlags = fLoadFlags;

    return clo;
}

plLayer* hsGMaterial::MakeBaseLayer()
{
    plLayer* newLay = new plLayer;
    newLay->InitToDefault();
    IClearLayers();
    
    hsAssert(GetKey(), "All materials need a key (or temp key)");

    plString buff;
    if( !GetKeyName().IsNull() )
        buff = plString::Format("%s_Layer", GetKeyName().c_str());
    else
        buff = "Layer";
    hsgResMgr::ResMgr()->NewKey( buff, newLay, GetKey() != nil ? GetKey()->GetUoid().GetLocation() : plLocation::kGlobalFixedLoc );

    // Add layer so we have it now.
    AddLayerViaNotify(newLay);

    return newLay;
}

uint32_t hsGMaterial::AddLayerViaNotify(plLayerInterface* layer)
{
    int idx = GetNumLayers();

    // Add via notify so we'll dispose of it properly later.
    plMatRefMsg* msg = new plMatRefMsg(GetKey(), plRefMsg::kOnRequest, idx, plMatRefMsg::kLayer);
    hsgResMgr::ResMgr()->SendRef(layer->GetKey(), msg, plRefFlags::kActiveRef);

    fLayers.SetCount(idx+1);
    fLayers[idx] = layer;

    return idx;
}

void hsGMaterial::ReplaceLayer(plLayerInterface* oldLay, plLayerInterface* newLay, bool piggyBack)
{
    hsTArray<plLayerInterface*>& layers = piggyBack ? fPiggyBacks : fLayers;
    int i;
    for( i = 0; i < layers.GetCount(); i++ )
    {
        if( layers[i] == oldLay )
            break;
    }
    hsAssert(i < layers.GetCount(), "Replacing a layer we don't have");
    if( i >= layers.GetCount() )
        return;
    SetLayer(newLay, i, piggyBack);
}

void hsGMaterial::RemoveLayer(plLayerInterface* lay, bool piggyBack)
{
    hsTArray<plLayerInterface*>& layers = piggyBack ? fPiggyBacks : fLayers;
    int i;
    for( i = 0; i < layers.GetCount(); i++ )
    {
        if( layers[i] == lay )
            break;
    }

    if (i >= layers.GetCount())
        return;

    layers.Remove(i);
}

void hsGMaterial::InsertLayer(plLayerInterface* layer, int32_t which, bool piggyBack)
{
    hsTArray<plLayerInterface*>& layers = piggyBack ? fPiggyBacks : fLayers;
    hsAssert(which <= layers.GetCount(), "Material layers Exceeding test depth");
    layers.InsertAtIndex(which, layer);
}

void hsGMaterial::SetLayer(plLayerInterface* layer, int32_t which, bool insert, bool piggyBack)
{
    if( insert )
    {
        InsertLayer(layer, which, piggyBack);
    }
    else
    {
        hsTArray<plLayerInterface*>& layers = piggyBack ? fPiggyBacks : fLayers;
        if( which < 0 )
            which = layers.GetCount();
        hsAssert(which <= layers.GetCount(), "Material layers Exceeding test depth");
        if( which < layers.GetCount() )
            layers[which] = layer;
        else
            layers.Append(layer);
    }
}


void hsGMaterial::Write(hsStream* s)
{
    s->WriteLE32(fLoadFlags);
    s->WriteLE32(fCompFlags);

    s->WriteLE32(GetNumLayers());
    s->WriteLE32(GetNumPiggyBacks());
}

void hsGMaterial::Read(hsStream* s)
{
    fLoadFlags = s->ReadLE32();
    fCompFlags = s->ReadLE32();

    IClearLayers();
    int n = s->ReadLE32();
    fLayers.SetCountAndZero(n);
    n = s->ReadLE32();
    fPiggyBacks.SetCountAndZero(n);
}

void hsGMaterial::Write(hsStream *stream, hsResMgr *group)
{
    plSynchedObject::Write(stream, group);

    Write(stream);

    // Write one (or many) texture indices
    int iLay;
    for( iLay = 0; iLay < GetNumLayers(); iLay++ )
    {
        group->WriteKey(stream,GetLayer(iLay));
    }
    for( iLay = 0; iLay < GetNumPiggyBacks(); iLay++ )
    {
        group->WriteKey(stream, GetPiggyBack(iLay));
    }
}

void hsGMaterial::Read(hsStream *stream, hsResMgr *group)
{
    plSynchedObject::Read(stream, group);

    Read(stream);

    int iLay;    
    // Assign texture(s)
    for (iLay = 0; iLay < GetNumLayers(); iLay++)
    {
        plMatRefMsg* msg = new plMatRefMsg(GetKey(), plRefMsg::kOnCreate, iLay, plMatRefMsg::kLayer);
        plKey key = group->ReadKeyNotifyMe(stream, msg, plRefFlags::kActiveRef);
    }
    for (iLay = 0; iLay < GetNumPiggyBacks(); iLay++)
    {
        plMatRefMsg* msg = new plMatRefMsg(GetKey(), plRefMsg::kOnCreate, iLay, plMatRefMsg::kPiggyBack);
        plKey key = group->ReadKeyNotifyMe(stream, msg, plRefFlags::kActiveRef);
    }
}

void hsGMaterial::Eval(double secs, uint32_t frame)
{
    plProfile_BeginLap(MaterialAnims, GetKeyName().c_str());

    int i;
    for( i = 0; i < GetNumLayers(); i++ )
    {
        if( fLayers[i] )
            fLayers[i]->Eval(secs, frame, 0);
    }
    for( i = 0; i < GetNumPiggyBacks(); i++ )
    {
        if( fPiggyBacks[i] )
            fPiggyBacks[i]->Eval(secs, frame, 0);
    }

    plProfile_EndLap(MaterialAnims, GetKeyName().c_str());
}

void hsGMaterial::Reset()
{
    int i;
    for( i = 0; i < GetNumLayers(); i++ )
    {
        if( fLayers[i] )
            fLayers[i]->Eval(0, 0, 0);
    }
}

void hsGMaterial::Init()
{
    Reset();
}

bool hsGMaterial::MsgReceive(plMessage* msg)
{
    plMatRefMsg* refMsg = plMatRefMsg::ConvertNoRef(msg);
    if( refMsg )
    {
        int which = refMsg->fWhich;
        bool piggyBack = 0 != (refMsg->fType & plMatRefMsg::kPiggyBack);
        plLayerInterface* lay= plLayerInterface::ConvertNoRef(refMsg->GetRef());
        if( refMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest) )
        {
            bool insert = 0 != (refMsg->fType & plMatRefMsg::kInsert);
            SetLayer(lay, which, 
                insert,
                piggyBack );
        }
        else if( refMsg->GetContext() & plRefMsg::kOnReplace )
            ReplaceLayer(plLayerInterface::ConvertNoRef(refMsg->GetOldRef()), lay, piggyBack);
        else if( refMsg->GetContext() & (plRefMsg::kOnRemove | plRefMsg::kOnDestroy) )
            RemoveLayer(lay, piggyBack);
        else
            ReplaceLayer(lay, &defaultLayer, piggyBack);
        return true;
    }
    return plSynchedObject::MsgReceive(msg);
}