Method _activateNewImpulse

src/core/ConvolverNode.cpp:192–231

}

void ConvolverNode::_activateNewImpulse()
{
    /// @TODO Create the kernels on the main work thread, activate should simply copy
    /// the data from the work thread.
    auto clip = _impulseResponseClip->valueBus();
    size_t len = clip->length();
    _scale = 1;
    if (normalize())
    {
        _scale = calculateNormalizationScale(clip.get());
        for (int i = 0; i < clip->numberOfChannels(); ++i)
        {
            float * data = clip->channel(i)->mutableData();
            for (int j = 0; j < len; ++j)
                data[j] *= _scale;
        }
    }

    {
        std::unique_lock<std::mutex> kernel_guard(_kernel_mutex);
        int c = static_cast<int>(clip->numberOfChannels());
        for (int i = 0; i < c; ++i)
        {
            // create one kernel per IR channel
            ReverbKernel kernel;

            // ft doesn't own the data; it does retain a pointer to it.
            sp_ftbl_bind(_sp, &kernel.ft,
                         clip->channel(0)->mutableData(), clip->channel(0)->length());

            sp_conv_create(&kernel.conv);
            sp_conv_init(_sp, kernel.conv, kernel.ft, 8192);

            _pending_kernels.emplace_back(std::move(kernel));
        }
        _swap_ready = true;
    }

    start(0);
}

std::shared_ptr<AudioBus> ConvolverNode::getImpulse() const
{