ResInsight/CommonCode/cafEffectCache.cpp
2012-05-18 09:45:23 +02:00

103 lines
3.3 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2012 Ceetron AS
//
// This library 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 3 of the License, or
// (at your option) any later version.
//
// This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
//##################################################################################################
#include "cafEffectGenerator.h"
#include "cafEffectCache.h"
namespace caf {
//==================================================================================================
//
// EffectCache
//
//==================================================================================================
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
EffectCache::EffectCache()
{
m_effectType = EffectGenerator::SHADER_BASED;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
EffectCache* EffectCache::instance()
{
static EffectCache staticInstance;
return &staticInstance;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
cvf::ref<cvf::Effect> EffectCache::getOrCreateEffect(const EffectGenerator* generator)
{
CVF_ASSERT(generator);
// Effect cache does not support mixing of effect types. Clear cache if type changes.
if (EffectGenerator::renderingMode() != m_effectType)
{
clear();
m_effectType = EffectGenerator::renderingMode();
}
size_t i;
for (i = 0; i < m_effectCache.size(); i++)
{
if (m_effectCache[i].first->isEqual(generator))
{
cvf::ref<cvf::Effect> effect = m_effectCache[i].second;
EffectGenerator* effGen = m_effectCache[i].first;
effGen->updateEffect(effect.p());
return effect;
}
}
EffectGenerator* myCopy = generator->copy();
cvf::ref<cvf::Effect> eff = generator->generateEffect();
m_effectCache.push_back(std::make_pair(myCopy, eff));
return eff;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void EffectCache::clear()
{
size_t i;
for (i = 0; i < m_effectCache.size(); i++)
{
EffectGenerator* effGenerator = m_effectCache[i].first;
delete effGenerator;
}
m_effectCache.clear();
}
}