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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-01 18:37:05 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-01 18:37:05 +0000
commit145364a8af6a1fec06556221e66d4b724a62fc9a (patch)
tree53bd71a544008c518034f208d64c932dc2883f50 /src/sound/AudioCache.cpp
downloadrosegarden-145364a8af6a1fec06556221e66d4b724a62fc9a.tar.gz
rosegarden-145364a8af6a1fec06556221e66d4b724a62fc9a.zip
Added old abandoned KDE3 version of the RoseGarden MIDI tool
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'src/sound/AudioCache.cpp')
-rw-r--r--src/sound/AudioCache.cpp139
1 files changed, 139 insertions, 0 deletions
diff --git a/src/sound/AudioCache.cpp b/src/sound/AudioCache.cpp
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+
+// -*- c-basic-offset: 4 -*-
+
+/*
+ Rosegarden
+ A sequencer and musical notation editor.
+
+ This program is Copyright 2000-2008
+ Guillaume Laurent <glaurent@telegraph-road.org>,
+ Chris Cannam <cannam@all-day-breakfast.com>,
+ Richard Bown <bownie@bownie.com>
+
+ The moral right of the authors to claim authorship of this work
+ has been asserted.
+
+ This program 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 2 of the
+ License, or (at your option) any later version. See the file
+ COPYING included with this distribution for more information.
+*/
+
+#include "AudioCache.h"
+#include <iostream>
+
+//#define DEBUG_AUDIO_CACHE 1
+
+namespace Rosegarden
+{
+
+AudioCache::~AudioCache()
+{
+ clear();
+}
+
+bool
+AudioCache::has(void *index)
+{
+ return m_cache.find(index) != m_cache.end();
+}
+
+float **
+AudioCache::getData(void *index, size_t &channels, size_t &frames)
+{
+ if (m_cache.find(index) == m_cache.end())
+ return 0;
+ CacheRec *rec = m_cache[index];
+ channels = rec->channels;
+ frames = rec->nframes;
+ return rec->data;
+}
+
+void
+AudioCache::addData(void *index, size_t channels, size_t nframes, float **data)
+{
+#ifdef DEBUG_AUDIO_CACHE
+ std::cerr << "AudioCache::addData(" << index << ")" << std::endl;
+#endif
+
+ if (m_cache.find(index) != m_cache.end()) {
+ std::cerr << "WARNING: AudioCache::addData(" << index << ", "
+ << channels << ", " << nframes
+ << ": already cached" << std::endl;
+ return ;
+ }
+
+ m_cache[index] = new CacheRec(data, channels, nframes);
+}
+
+void
+AudioCache::incrementReference(void *index)
+{
+ if (m_cache.find(index) == m_cache.end()) {
+ std::cerr << "WARNING: AudioCache::incrementReference(" << index
+ << "): not found" << std::endl;
+ return ;
+ }
+ ++m_cache[index]->refCount;
+
+#ifdef DEBUG_AUDIO_CACHE
+
+ std::cerr << "AudioCache::incrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
+#endif
+}
+
+void
+AudioCache::decrementReference(void *index)
+{
+ std::map<void *, CacheRec *>::iterator i = m_cache.find(index);
+
+ if (i == m_cache.end()) {
+ std::cerr << "WARNING: AudioCache::decrementReference(" << index
+ << "): not found" << std::endl;
+ return ;
+ }
+ if (i->second->refCount <= 1) {
+ delete i->second;
+ m_cache.erase(i);
+#ifdef DEBUG_AUDIO_CACHE
+
+ std::cerr << "AudioCache::decrementReference(" << index << ") [deleting]" << std::endl;
+#endif
+
+ } else {
+ --i->second->refCount;
+#ifdef DEBUG_AUDIO_CACHE
+
+ std::cerr << "AudioCache::decrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
+#endif
+
+ }
+}
+
+void
+AudioCache::clear()
+{
+#ifdef DEBUG_AUDIO_CACHE
+ std::cerr << "AudioCache::clear()" << std::endl;
+#endif
+
+ for (std::map<void *, CacheRec *>::iterator i = m_cache.begin();
+ i != m_cache.end(); ++i) {
+ if (i->second->refCount > 0) {
+ std::cerr << "WARNING: AudioCache::clear: deleting cached data with refCount " << i->second->refCount << std::endl;
+ }
+ }
+ m_cache.clear();
+}
+
+AudioCache::CacheRec::~CacheRec()
+{
+ for (size_t j = 0; j < channels; ++j)
+ delete[] data[j];
+ delete[] data;
+}
+
+}
+
+