/[svn]/qsampler/trunk/src/qsamplerChannel.cpp
ViewVC logotype

Annotation of /qsampler/trunk/src/qsamplerChannel.cpp

Parent Directory Parent Directory | Revision Log Revision Log


Revision 343 - (hide annotations) (download)
Tue Jan 18 12:32:01 2005 UTC (19 years, 2 months ago) by capela
File size: 13752 byte(s)
Actual instrument names are now optional (yafix).

1 capela 264 // qsamplerChannel.cpp
2     //
3     /****************************************************************************
4 capela 341 Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved.
5 capela 264
6     This program is free software; you can redistribute it and/or
7     modify it under the terms of the GNU General Public License
8     as published by the Free Software Foundation; either version 2
9     of the License, or (at your option) any later version.
10    
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     GNU General Public License for more details.
15    
16     You should have received a copy of the GNU General Public License
17     along with this program; if not, write to the Free Software
18     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19    
20     *****************************************************************************/
21    
22     #include "qsamplerChannel.h"
23    
24     #include "qsamplerMainForm.h"
25 capela 303 #include "qsamplerChannelForm.h"
26 capela 264
27     #include "config.h"
28    
29 capela 299 #include <qfileinfo.h>
30 capela 264
31 capela 299 #ifdef CONFIG_LIBGIG
32     #include "gig.h"
33     #endif
34    
35 capela 343 #define QSAMPLER_INSTRUMENT_MAX 8
36 capela 299
37 capela 343
38 capela 264 //-------------------------------------------------------------------------
39     // qsamplerChannel - Sampler channel structure.
40     //
41 capela 341 bool qsamplerChannel::g_bInstrumentNames = false;
42 capela 264
43     // Constructor.
44     qsamplerChannel::qsamplerChannel ( qsamplerMainForm *pMainForm, int iChannelID )
45     {
46     m_pMainForm = pMainForm;
47     m_iChannelID = iChannelID;
48    
49     // m_sEngineName = QObject::tr("(No engine)");
50     // m_sInstrumentFile = QObject::tr("(No instrument)");
51     m_iInstrumentNr = -1;
52     m_iInstrumentStatus = -1;
53     m_sMidiDriver = "Alsa"; // DEPRECATED.
54     m_iMidiDevice = -1;
55     m_iMidiPort = -1;
56     m_iMidiChannel = -1;
57     m_sAudioDriver = "Alsa"; // DEPRECATED.
58     m_iAudioDevice = -1;
59     m_fVolume = 0.0;
60    
61     }
62    
63     // Default destructor.
64     qsamplerChannel::~qsamplerChannel (void)
65     {
66     }
67    
68    
69     // The global options settings delegated property.
70     qsamplerOptions *qsamplerChannel::options (void)
71     {
72     if (m_pMainForm == NULL)
73     return NULL;
74    
75     return m_pMainForm->options();
76     }
77    
78    
79     // The client descriptor delegated property.
80     lscp_client_t *qsamplerChannel::client (void)
81     {
82     if (m_pMainForm == NULL)
83     return NULL;
84    
85     return m_pMainForm->client();
86     }
87    
88    
89 capela 295 // Create a new sampler channel, if not already.
90     bool qsamplerChannel::addChannel (void)
91     {
92     if (client() == NULL)
93     return false;
94    
95     // Are we a new channel?
96     if (m_iChannelID < 0) {
97     m_iChannelID = ::lscp_add_channel(client());
98     if (m_iChannelID < 0) {
99     appendMessagesClient("lscp_add_channel");
100     appendMessagesError(QObject::tr("Could not create the new channel.\n\nSorry."));
101     } // Otherwise it's created...
102     else appendMessages(QObject::tr("Channel %1 created.").arg(m_iChannelID));
103     }
104    
105     // Return whether we're a valid channel...
106     return (m_iChannelID >= 0);
107     }
108    
109    
110     // Remove sampler channel.
111     bool qsamplerChannel::removeChannel (void)
112     {
113     if (client() == NULL)
114     return false;
115    
116     // Are we an existing channel?
117     if (m_iChannelID >= 0) {
118     if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) {
119     appendMessagesClient("lscp_remove_channel");
120     appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry."));
121     } else {
122     // Otherwise it's removed.
123     appendMessages(QObject::tr("Channel %1 removed.").arg(m_iChannelID));
124     m_iChannelID = -1;
125     }
126     }
127    
128     // Return whether we've removed the channel...
129     return (m_iChannelID < 0);
130     }
131    
132    
133 capela 264 // Channel-ID (aka Sammpler-Channel) accessors.
134     int qsamplerChannel::channelID (void)
135     {
136     return m_iChannelID;
137     }
138    
139     void qsamplerChannel::setChannelID ( int iChannelID )
140     {
141     m_iChannelID = iChannelID;
142     }
143    
144    
145 capela 295 // Readable channel name.
146     QString qsamplerChannel::channelName (void)
147     {
148     return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID));
149     }
150    
151    
152 capela 264 // Engine name accessors.
153     QString& qsamplerChannel::engineName (void)
154     {
155     return m_sEngineName;
156     }
157    
158     bool qsamplerChannel::loadEngine ( const QString& sEngineName )
159     {
160 capela 295 if (client() == NULL || m_iChannelID < 0)
161 capela 264 return false;
162    
163     if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {
164     appendMessagesClient("lscp_load_engine");
165     return false;
166     }
167    
168     m_sEngineName = sEngineName;
169     return true;
170     }
171    
172    
173     // Instrument filename accessor.
174     QString& qsamplerChannel::instrumentFile (void)
175     {
176     return m_sInstrumentFile;
177     }
178    
179     // Instrument index accessor.
180     int qsamplerChannel::instrumentNr (void)
181     {
182     return m_iInstrumentNr;
183     }
184    
185     // Instrument status accessor.
186     int qsamplerChannel::instrumentStatus (void)
187     {
188     return m_iInstrumentStatus;
189     }
190    
191     // Instrument file loader.
192     bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr )
193     {
194 capela 295 if (client() == NULL || m_iChannelID < 0)
195 capela 264 return false;
196    
197     if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {
198     appendMessagesClient("lscp_load_instrument");
199     return false;
200     }
201    
202     m_sInstrumentFile = sInstrumentFile;
203     m_iInstrumentNr = iInstrumentNr;
204     m_iInstrumentStatus = 0;
205    
206     return true;
207     }
208    
209    
210     // MIDI driver type accessors (DEPRECATED).
211     QString& qsamplerChannel::midiDriver (void)
212     {
213     return m_sMidiDriver;
214     }
215    
216     bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver )
217     {
218 capela 295 if (client() == NULL || m_iChannelID < 0)
219 capela 264 return false;
220    
221     if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {
222     appendMessagesClient("lscp_set_channel_midi_type");
223     return false;
224     }
225    
226     m_sMidiDriver = sMidiDriver;
227     return true;
228     }
229    
230    
231     // MIDI device accessors.
232     int qsamplerChannel::midiDevice (void)
233     {
234     return m_iMidiDevice;
235     }
236    
237     bool qsamplerChannel::setMidiDevice ( int iMidiDevice )
238     {
239 capela 295 if (client() == NULL || m_iChannelID < 0)
240 capela 264 return false;
241    
242     if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {
243     appendMessagesClient("lscp_set_channel_midi_device");
244     return false;
245     }
246    
247     m_iMidiDevice = iMidiDevice;
248     return true;
249     }
250    
251    
252     // MIDI port number accessor.
253     int qsamplerChannel::midiPort (void)
254     {
255     return m_iMidiPort;
256     }
257    
258     bool qsamplerChannel::setMidiPort ( int iMidiPort )
259     {
260 capela 295 if (client() == NULL || m_iChannelID < 0)
261 capela 264 return false;
262    
263     if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {
264     appendMessagesClient("lscp_set_channel_midi_port");
265     return false;
266     }
267    
268     m_iMidiPort = iMidiPort;
269     return true;
270     }
271    
272    
273     // MIDI channel accessor.
274     int qsamplerChannel::midiChannel (void)
275     {
276     return m_iMidiChannel;
277     }
278    
279     bool qsamplerChannel::setMidiChannel ( int iMidiChannel )
280     {
281 capela 295 if (client() == NULL || m_iChannelID < 0)
282 capela 264 return false;
283    
284     if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {
285     appendMessagesClient("lscp_set_channel_midi_channel");
286     return false;
287     }
288    
289     m_iMidiChannel = iMidiChannel;
290     return true;
291     }
292    
293    
294     // Audio device accessor.
295     int qsamplerChannel::audioDevice (void)
296     {
297     return m_iAudioDevice;
298     }
299    
300     bool qsamplerChannel::setAudioDevice ( int iAudioDevice )
301     {
302 capela 295 if (client() == NULL || m_iChannelID < 0)
303 capela 264 return false;
304    
305     if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {
306     appendMessagesClient("lscp_set_channel_audio_device");
307     return false;
308     }
309    
310     m_iAudioDevice = iAudioDevice;
311     return true;
312     }
313    
314    
315     // Audio driver type accessors (DEPRECATED).
316     QString& qsamplerChannel::audioDriver (void)
317     {
318     return m_sAudioDriver;
319     }
320    
321     bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver )
322     {
323 capela 295 if (client() == NULL || m_iChannelID < 0)
324 capela 264 return false;
325    
326     if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {
327     appendMessagesClient("lscp_set_channel_audio_type");
328     return false;
329     }
330    
331     m_sAudioDriver = sAudioDriver;
332     return true;
333     }
334    
335    
336     // Channel volume accessors.
337     float qsamplerChannel::volume (void)
338     {
339     return m_fVolume;
340     }
341    
342     bool qsamplerChannel::setVolume ( float fVolume )
343     {
344 capela 295 if (client() == NULL || m_iChannelID < 0)
345 capela 264 return false;
346    
347     if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {
348     appendMessagesClient("lscp_set_channel_volume");
349     return false;
350     }
351    
352     m_fVolume = fVolume;
353     return true;
354     }
355    
356    
357     // Update whole channel info state.
358 capela 295 bool qsamplerChannel::updateChannelInfo (void)
359 capela 264 {
360 capela 295 if (client() == NULL || m_iChannelID < 0)
361     return false;
362 capela 264
363     // Read channel information.
364     lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID);
365     if (pChannelInfo == NULL) {
366     appendMessagesClient("lscp_get_channel_info");
367     appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry."));
368 capela 295 return false;
369 capela 264 }
370 capela 295
371     // Cache in channel information.
372     m_sEngineName = pChannelInfo->engine_name;
373     m_sInstrumentFile = pChannelInfo->instrument_file;
374     m_iInstrumentNr = pChannelInfo->instrument_nr;
375     m_iInstrumentStatus = pChannelInfo->instrument_status;
376     m_iMidiDevice = pChannelInfo->midi_device;
377     m_iMidiPort = pChannelInfo->midi_port;
378     m_iMidiChannel = pChannelInfo->midi_channel;
379     m_iAudioDevice = pChannelInfo->audio_device;
380     m_fVolume = pChannelInfo->volume;
381     // Some sanity checks.
382     if (m_sEngineName == "NONE")
383     m_sEngineName = QString::null;
384     if (m_sInstrumentFile == "NONE")
385     m_sInstrumentFile = QString::null;
386    
387     return true;
388 capela 264 }
389    
390    
391     // Reset channel method.
392 capela 295 bool qsamplerChannel::resetChannel (void)
393 capela 264 {
394 capela 295 if (client() == NULL || m_iChannelID < 0)
395     return false;
396 capela 264
397 capela 295 if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) {
398 capela 264 appendMessagesClient("lscp_reset_channel");
399 capela 295 return false;
400     }
401    
402     appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID));
403     return true;
404 capela 264 }
405    
406    
407 capela 303 // Channel setup dialog form.
408     bool qsamplerChannel::channelSetup ( QWidget *pParent )
409     {
410     bool bResult = false;
411    
412     qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent);
413     if (pChannelForm) {
414     pChannelForm->setup(this);
415     bResult = pChannelForm->exec();
416     delete pChannelForm;
417     }
418    
419     return bResult;
420     }
421    
422    
423 capela 264 // Redirected messages output methods.
424     void qsamplerChannel::appendMessages( const QString& s )
425     {
426 capela 303 if (m_pMainForm) m_pMainForm->appendMessages(s);
427 capela 264 }
428    
429     void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )
430     {
431 capela 303 if (m_pMainForm) m_pMainForm->appendMessagesColor(s, c);
432 capela 264 }
433    
434     void qsamplerChannel::appendMessagesText( const QString& s )
435     {
436 capela 303 if (m_pMainForm) m_pMainForm->appendMessagesText(s);
437 capela 264 }
438    
439     void qsamplerChannel::appendMessagesError( const QString& s )
440     {
441 capela 303 if (m_pMainForm) m_pMainForm->appendMessagesError(s);
442 capela 264 }
443    
444     void qsamplerChannel::appendMessagesClient( const QString& s )
445     {
446 capela 303 if (m_pMainForm) m_pMainForm->appendMessagesClient(s);
447 capela 264 }
448    
449    
450 capela 303 // Context menu event handler.
451     void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent )
452     {
453     if (m_pMainForm) m_pMainForm->contextMenuEvent(pEvent);
454     }
455    
456    
457 capela 299 // Retrieve the instrument list of a instrument file (.gig).
458     QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile )
459     {
460     QFileInfo fileinfo(sInstrumentFile);
461     QString sInstrumentName = fileinfo.fileName();
462     QStringList instlist;
463    
464     if (fileinfo.exists()) {
465     #ifdef CONFIG_LIBGIG
466 capela 341 if (g_bInstrumentNames) {
467     RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
468     gig::File *pGig = new gig::File(pRiff);
469     gig::Instrument *pInstrument = pGig->GetFirstInstrument();
470     while (pInstrument) {
471     instlist.append((pInstrument->pInfo)->Name.c_str());
472     pInstrument = pGig->GetNextInstrument();
473     }
474     delete pGig;
475     delete pRiff;
476     }
477     else
478 capela 342 #endif
479 capela 299 for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++)
480     instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]");
481     }
482     else instlist.append(sInstrumentName);
483 capela 306
484 capela 299 return instlist;
485     }
486    
487    
488     // Retrieve the spacific instrument name of a instrument file (.gig), given its index.
489     QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, int iInstrumentNr )
490     {
491     QFileInfo fileinfo(sInstrumentFile);
492     QString sInstrumentName = fileinfo.fileName();
493    
494     if (fileinfo.exists()) {
495     #ifdef CONFIG_LIBGIG
496 capela 341 if (g_bInstrumentNames) {
497     RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
498     gig::File *pGig = new gig::File(pRiff);
499     int iIndex = 0;
500     gig::Instrument *pInstrument = pGig->GetFirstInstrument();
501     while (pInstrument) {
502     if (iIndex == iInstrumentNr) {
503     sInstrumentName = (pInstrument->pInfo)->Name.c_str();
504     break;
505     }
506     iIndex++;
507     pInstrument = pGig->GetNextInstrument();
508     }
509     delete pGig;
510     delete pRiff;
511     }
512     else
513 capela 342 #endif
514 capela 299 sInstrumentName += " [" + QString::number(iInstrumentNr) + "]";
515     }
516    
517     return sInstrumentName;
518     }
519    
520    
521 capela 341 // Instrument name(s) retrieval mode--global option.
522     bool qsamplerChannel::instrumentNames (void)
523     {
524     return g_bInstrumentNames;
525     }
526    
527     void qsamplerChannel::setInstrumentNames ( bool bInstrumentNames )
528     {
529     g_bInstrumentNames = bInstrumentNames;
530     }
531    
532    
533 capela 264 // end of qsamplerChannel.cpp

  ViewVC Help
Powered by ViewVC