ImmediateMode.cpp

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// Copyright (C) 2005 Dave Griffiths
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#include <assert.h>
#include "ImmediateMode.h"

using namespace Fluxus;

ImmediateMode::ImmediateMode()
{
}

ImmediateMode::~ImmediateMode()
{
}

void ImmediateMode::Add(Primitive *p, State *s)
{   
    assert(p!=NULL);
    assert(s!=NULL);
    IMItem *newitem = new IMItem;
    newitem->m_State = *s;
    newitem->m_Primitive = p;
    m_IMRecord.push_back(newitem);
}

void ImmediateMode::Render(unsigned int CamIndex, ShadowVolumeGen *shadowgen)
{
    for(vector<IMItem*>::iterator i=m_IMRecord.begin(); i!=m_IMRecord.end(); ++i)
    {
        glPushMatrix();
        (*i)->m_State.Apply();
        // need to set the state to the primitive to update the parts of the state the 
        // render call acts on. need to look at this.
        assert((*i)->m_Primitive!=NULL);
        (*i)->m_Primitive->SetState(&(*i)->m_State);    
        (*i)->m_Primitive->Prerender();
        (*i)->m_Primitive->Render();
        
        if (shadowgen && (*i)->m_Primitive->GetState()->Hints & HINT_CAST_SHADOW)
        {
            shadowgen->Generate((*i)->m_Primitive);
        }
        glPopMatrix();
    }
}

void ImmediateMode::Clear()
{
    for(vector<IMItem*>::iterator i=m_IMRecord.begin(); i!=m_IMRecord.end(); ++i)
    {
        delete *i;
    }
    
    m_IMRecord.clear();
}

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