/*  aKode: aKodeScope    Copyright (C) 2005 Allan Sandfeld Jensen <kde@carewolf.com>    This library is free software; you can redistribute it and/or    modify it under the terms of the GNU Library General Public    License as published by the Free Software Foundation; either    version 2 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    Library General Public License for more details.    You should have received a copy of the GNU Library General Public License    along with this library; see the file COPYING.LIB.  If not, write to    the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,    Boston, MA 02110-1301, USA.*/#include <config.h>#include <akode/audioframe.h>#include <akode/converter.h>#include "akode-scope.h"#include <vector>//#include <iostream>using aKode::AudioFrame;// Copies fromFrame to toFrame fast (Actually a swap happens to save malloc and frees).static inline void takeover(AudioFrame* toFrame, AudioFrame* fromFrame){    AudioFrame tmpFrame;    tmpFrame = *toFrame;    *toFrame = *fromFrame;    *fromFrame = tmpFrame;    tmpFrame.data = 0;}struct aKodeScope::private_data{    private_data() : length(512), convert(16) {};    int length;    aKode::AudioFrame frame;    aKode::AudioFrame frame1;    aKode::Converter convert;    std::vector<int16_t> scope;};aKodeScope::aKodeScope(){    d = new private_data;}aKodeScope::~aKodeScope(){    delete d;}void aKodeScope::writeFrame(AudioFrame* frame){    takeover(&d->frame, frame);}/*void aKodeScope::setLength(length){    d->length = length;}int aKodeScope::length() const{    return d->length;}*/const Engine::Scope& aKodeScope::scope(){    d->convert.doFrame(&d->frame, &d->frame1);    int length = d->frame1.length;    int channels = d->frame1.channels;    if (length > 512) length = 512;    d->scope.resize(length*channels);    int16_t **data = (int16_t**)d->frame1.data;    for(int j=0 ; j < length; j++)        for (int i = 0; i < channels; i++)            d->scope[j*channels + i] = data[i][j];    return d->scope;}