Ejemplos de EffectInstance::process en C++ (Cpp)

Ejemplo n.º 1

Archivo: EffectUser.cpp Proyecto: Giladx/vlmc

quint32*
EffectUser::applyFilters( const Workflow::Frame* frame,
                             qint64 currentFrame, double time )
{
    QReadLocker     lock( m_effectsLock );

    if ( m_filters.size() == 0 )
        return NULL;
    EffectsEngine::EffectList::const_iterator     it = m_filters.constBegin();
    EffectsEngine::EffectList::const_iterator     ite = m_filters.constEnd();

    quint32         *buff1 = NULL;
    quint32         *buff2 = NULL;
    const quint32   *input = frame->buffer();
    bool            firstBuff = true;

    while ( it != ite )
    {
        if ( (*it)->begin() < currentFrame &&
             ( (*it)->end() < 0 || (*it)->end() > currentFrame ) )
        {
            quint32     **buff;
            if ( firstBuff == true )
                buff = &buff1;
            else
                buff = &buff2;
            if ( *buff == NULL )
                *buff = new quint32[frame->nbPixels()];
            EffectInstance      *effect = (*it)->effectInstance();
            effect->process( time, input, *buff );
            input = *buff;
            firstBuff = !firstBuff;
        }
        ++it;
    }
    if ( buff1 != NULL || buff2 != NULL )
    {
        if ( firstBuff == true )
        {
            delete[] buff1;
            return buff2;
        }
        else
        {
            delete[] buff2;
            return buff1;
        }
    }
    return NULL;
}