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137 lines
3.3 KiB
137 lines
3.3 KiB
/*
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Rosegarden
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A sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <bownie@bownie.com>
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The moral right of the authors to claim authorship of this work
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has been asserted.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "AudioCache.h"
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#include <iostream>
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//#define DEBUG_AUDIO_CACHE 1
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namespace Rosegarden
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{
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AudioCache::~AudioCache()
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{
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clear();
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}
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bool
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AudioCache::has(void *index)
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{
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return m_cache.find(index) != m_cache.end();
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}
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float **
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AudioCache::getData(void *index, size_t &channels, size_t &frames)
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{
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if (m_cache.find(index) == m_cache.end())
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return 0;
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CacheRec *rec = m_cache[index];
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channels = rec->channels;
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frames = rec->nframes;
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return rec->data;
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}
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void
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AudioCache::addData(void *index, size_t channels, size_t nframes, float **data)
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{
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#ifdef DEBUG_AUDIO_CACHE
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std::cerr << "AudioCache::addData(" << index << ")" << std::endl;
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#endif
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if (m_cache.find(index) != m_cache.end()) {
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std::cerr << "WARNING: AudioCache::addData(" << index << ", "
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<< channels << ", " << nframes
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<< ": already cached" << std::endl;
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return ;
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}
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m_cache[index] = new CacheRec(data, channels, nframes);
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}
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void
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AudioCache::incrementReference(void *index)
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{
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if (m_cache.find(index) == m_cache.end()) {
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std::cerr << "WARNING: AudioCache::incrementReference(" << index
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<< "): not found" << std::endl;
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return ;
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}
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++m_cache[index]->refCount;
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#ifdef DEBUG_AUDIO_CACHE
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std::cerr << "AudioCache::incrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
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#endif
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}
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void
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AudioCache::decrementReference(void *index)
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{
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std::map<void *, CacheRec *>::iterator i = m_cache.find(index);
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if (i == m_cache.end()) {
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std::cerr << "WARNING: AudioCache::decrementReference(" << index
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<< "): not found" << std::endl;
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return ;
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}
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if (i->second->refCount <= 1) {
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delete i->second;
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m_cache.erase(i);
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#ifdef DEBUG_AUDIO_CACHE
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std::cerr << "AudioCache::decrementReference(" << index << ") [deleting]" << std::endl;
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#endif
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} else {
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--i->second->refCount;
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#ifdef DEBUG_AUDIO_CACHE
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std::cerr << "AudioCache::decrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
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#endif
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}
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}
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void
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AudioCache::clear()
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{
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#ifdef DEBUG_AUDIO_CACHE
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std::cerr << "AudioCache::clear()" << std::endl;
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#endif
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for (std::map<void *, CacheRec *>::iterator i = m_cache.begin();
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i != m_cache.end(); ++i) {
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if (i->second->refCount > 0) {
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std::cerr << "WARNING: AudioCache::clear: deleting cached data with refCount " << i->second->refCount << std::endl;
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}
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}
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m_cache.clear();
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}
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AudioCache::CacheRec::~CacheRec()
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{
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for (size_t j = 0; j < channels; ++j)
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delete[] data[j];
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delete[] data;
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}
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}
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