diff options
Diffstat (limited to 'attic/muse_qt4_evolution/muse/audiooutput.cpp')
| -rw-r--r-- | attic/muse_qt4_evolution/muse/audiooutput.cpp | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/attic/muse_qt4_evolution/muse/audiooutput.cpp b/attic/muse_qt4_evolution/muse/audiooutput.cpp deleted file mode 100644 index e4937a74..00000000 --- a/attic/muse_qt4_evolution/muse/audiooutput.cpp +++ /dev/null @@ -1,191 +0,0 @@ -//============================================================================= -// MusE -// Linux Music Editor -// $Id:$ -// -// Copyright (C) 2002-2006 by Werner Schweer and others -// -// This program is free software; you can redistribute it and/or modify -// it under the terms of the GNU General Public License version 2. -// -// This program 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 General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -//============================================================================= - -#include "audiooutput.h" -#include "jackaudio.h" -#include "audio.h" -#include "globals.h" -#include "song.h" -#include "ticksynth.h" - -//--------------------------------------------------------- -// AudioOutput -//--------------------------------------------------------- - -AudioOutput::AudioOutput() - : AudioTrack() - { - _channels = 0; - setChannels(2); - - // - // buffers are allocated from AudioTrack() - // and not needed by AudioOutput which uses - // the JACK supplied buffers - - for (int i = 0; i < MAX_CHANNELS; ++i) { - if (buffer[i]) { - free(buffer[i]); - buffer[i] = 0; - } - } - } - -//--------------------------------------------------------- -// ~AudioOutput -//--------------------------------------------------------- - -AudioOutput::~AudioOutput() - { - for (int i = 0; i < _channels; ++i) { - if (!jackPort(i).isZero()) - audioDriver->unregisterPort(jackPort(i)); - } - // AudioOutput does not own buffers (they are from JACK) - // make sure ~AudioTrack() does not delete them: - for (int i = 0; i < MAX_CHANNELS; ++i) - buffer[i] = 0; - } - -//--------------------------------------------------------- -// write -//--------------------------------------------------------- - -void AudioOutput::write(Xml& xml) const - { - xml.stag("AudioOutput"); - AudioTrack::writeProperties(xml); - xml.etag("AudioOutput"); - } - -//--------------------------------------------------------- -// read -//--------------------------------------------------------- - -void AudioOutput::read(QDomNode node) - { - while (!node.isNull()) { - AudioTrack::readProperties(node); - node = node.nextSibling(); - } - setName(name()); // allocate jack ports - } - -//--------------------------------------------------------- -// setChannels -//--------------------------------------------------------- - -void AudioOutput::setChannels(int n) - { - if (n == _channels) - return; - AudioTrack::setChannels(n); - } - -//--------------------------------------------------------- -// silence -//--------------------------------------------------------- - -void AudioOutput::silence(unsigned n) - { - for (int i = 0; i < channels(); ++i) { - if (!jackPort(i).isZero()) - buffer[i] = audioDriver->getBuffer(jackPort(i), n); - else { - printf("PANIC: silence(): no buffer from audio driver\n"); - abort(); - return; - } - } - for (int i = 0; i < channels(); ++i) - memset(buffer[i], 0, n * sizeof(float)); - } - -//--------------------------------------------------------- -// setName -//--------------------------------------------------------- - -void AudioOutput::setName(const QString& s) - { - Track::setName(s); - for (int i = 0; i < channels(); ++i) { - if (!jackPort(i).isZero()) { - char buffer[128]; - snprintf(buffer, 128, "%s-%d", _name.toAscii().data(), i); - audioDriver->setPortName(jackPort(i), buffer); - } - } - } - -//--------------------------------------------------------- -// stopRecording -// gui context -//--------------------------------------------------------- - -void AudioOutput::stopRecording(const Pos& /*s*/, const Pos& /*e*/) - { - SndFile* sf = recFile(); - if (sf) - delete sf; // close - setRecFile(0); - setRecordFlag(false); - } - -//--------------------------------------------------------- -// process -// synthesize segmentSize frames at buffer offset "offset" -// current frame position is "pos" -//--------------------------------------------------------- - -void AudioOutput::process() - { - for (int c = 0; c < channels(); ++c) - buffer[c] = audioDriver->getBuffer(jackPort(c), segmentSize); - - AudioTrack::process(); - - if (bufferEmpty) { - for (int c = 0; c < channels(); ++c) - memset(buffer[c], 0, sizeof(float) * segmentSize); - } - - int n = segmentSize; - if (audio->isRecording() && recordFlag() && _recFile) { - // bounce to file - if (audio->freewheel()) - _recFile->write(channels(), buffer, n); - else - putFifo(channels(), n, buffer); - } - -#if 0 - if (audioClickFlag && song->click() && metronome) { - float b[n]; - float* bp[1]; - bp[0] = b; - metronome->getData(pos, 1, n, bp); - for (unsigned i = 0; i < n; ++i) { - for (int k = 0; k < channels(); ++k) - buffer[k][i] += b[i] * audioClickVolume; - } - } -#endif - } - |