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00021 #include "JackSystemDeps.h"
00022 #include "JackAudioDriver.h"
00023 #include "JackTime.h"
00024 #include "JackError.h"
00025 #include "JackEngineControl.h"
00026 #include "JackPort.h"
00027 #include "JackGraphManager.h"
00028 #include "JackLockedEngine.h"
00029 #include "JackException.h"
00030 #include <assert.h>
00031
00032 namespace Jack
00033 {
00034
00035 JackAudioDriver::JackAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table)
00036 : JackDriver(name, alias, engine, table),
00037 fCaptureChannels(0),
00038 fPlaybackChannels(0),
00039 fWithMonitorPorts(false)
00040 {}
00041
00042 JackAudioDriver::~JackAudioDriver()
00043 {}
00044
00045 int JackAudioDriver::SetBufferSize(jack_nframes_t buffer_size)
00046 {
00047 fEngineControl->fBufferSize = buffer_size;
00048 fGraphManager->SetBufferSize(buffer_size);
00049 fEngineControl->fPeriodUsecs = jack_time_t(1000000.f / fEngineControl->fSampleRate * fEngineControl->fBufferSize);
00050 if (!fEngineControl->fTimeOut)
00051 fEngineControl->fTimeOutUsecs = jack_time_t(2.f * fEngineControl->fPeriodUsecs);
00052 return 0;
00053 }
00054
00055 int JackAudioDriver::SetSampleRate(jack_nframes_t sample_rate)
00056 {
00057 fEngineControl->fSampleRate = sample_rate;
00058 fEngineControl->fPeriodUsecs = jack_time_t(1000000.f / fEngineControl->fSampleRate * fEngineControl->fBufferSize);
00059 if (!fEngineControl->fTimeOut)
00060 fEngineControl->fTimeOutUsecs = jack_time_t(2.f * fEngineControl->fPeriodUsecs);
00061 return 0;
00062 }
00063
00064 int JackAudioDriver::Open(jack_nframes_t buffer_size,
00065 jack_nframes_t samplerate,
00066 bool capturing,
00067 bool playing,
00068 int inchannels,
00069 int outchannels,
00070 bool monitor,
00071 const char* capture_driver_name,
00072 const char* playback_driver_name,
00073 jack_nframes_t capture_latency,
00074 jack_nframes_t playback_latency)
00075 {
00076 fCaptureChannels = inchannels;
00077 fPlaybackChannels = outchannels;
00078 fWithMonitorPorts = monitor;
00079 return JackDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency);
00080 }
00081
00082 int JackAudioDriver::Open(bool capturing,
00083 bool playing,
00084 int inchannels,
00085 int outchannels,
00086 bool monitor,
00087 const char* capture_driver_name,
00088 const char* playback_driver_name,
00089 jack_nframes_t capture_latency,
00090 jack_nframes_t playback_latency)
00091 {
00092 fCaptureChannels = inchannels;
00093 fPlaybackChannels = outchannels;
00094 fWithMonitorPorts = monitor;
00095 return JackDriver::Open(capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency);
00096 }
00097
00098 int JackAudioDriver::Attach()
00099 {
00100 JackPort* port;
00101 jack_port_id_t port_index;
00102 char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
00103 char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
00104 jack_latency_range_t range;
00105 int i;
00106
00107 jack_log("JackAudioDriver::Attach fBufferSize = %ld fSampleRate = %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
00108
00109 for (i = 0; i < fCaptureChannels; i++) {
00110 snprintf(alias, sizeof(alias) - 1, "%s:%s:out%d", fAliasName, fCaptureDriverName, i + 1);
00111 snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);
00112 if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, CaptureDriverFlags, fEngineControl->fBufferSize)) == NO_PORT) {
00113 jack_error("driver: cannot register port for %s", name);
00114 return -1;
00115 }
00116 port = fGraphManager->GetPort(port_index);
00117 port->SetAlias(alias);
00118 range.min = range.max = fEngineControl->fBufferSize + fCaptureLatency;
00119 port->SetLatencyRange(JackCaptureLatency, &range);
00120 fCapturePortList[i] = port_index;
00121 jack_log("JackAudioDriver::Attach fCapturePortList[i] port_index = %ld", port_index);
00122 }
00123
00124 for (i = 0; i < fPlaybackChannels; i++) {
00125 snprintf(alias, sizeof(alias) - 1, "%s:%s:in%d", fAliasName, fPlaybackDriverName, i + 1);
00126 snprintf(name, sizeof(name) - 1, "%s:playback_%d", fClientControl.fName, i + 1);
00127 if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, PlaybackDriverFlags, fEngineControl->fBufferSize)) == NO_PORT) {
00128 jack_error("driver: cannot register port for %s", name);
00129 return -1;
00130 }
00131 port = fGraphManager->GetPort(port_index);
00132 port->SetAlias(alias);
00133
00134 range.min = range.max = fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + fPlaybackLatency;
00135 port->SetLatencyRange(JackPlaybackLatency, &range);
00136 fPlaybackPortList[i] = port_index;
00137 jack_log("JackAudioDriver::Attach fPlaybackPortList[i] port_index = %ld", port_index);
00138
00139
00140 if (fWithMonitorPorts) {
00141 jack_log("Create monitor port");
00142 snprintf(name, sizeof(name) - 1, "%s:monitor_%u", fClientControl.fName, i + 1);
00143 if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, fEngineControl->fBufferSize)) == NO_PORT) {
00144 jack_error("Cannot register monitor port for %s", name);
00145 return -1;
00146 } else {
00147 port = fGraphManager->GetPort(port_index);
00148 range.min = range.max = fEngineControl->fBufferSize;
00149 port->SetLatencyRange(JackCaptureLatency, &range);
00150 fMonitorPortList[i] = port_index;
00151 }
00152 }
00153 }
00154
00155 return 0;
00156 }
00157
00158 int JackAudioDriver::Detach()
00159 {
00160 int i;
00161 jack_log("JackAudioDriver::Detach");
00162
00163 for (i = 0; i < fCaptureChannels; i++) {
00164 fGraphManager->ReleasePort(fClientControl.fRefNum, fCapturePortList[i]);
00165 }
00166
00167 for (i = 0; i < fPlaybackChannels; i++) {
00168 fGraphManager->ReleasePort(fClientControl.fRefNum, fPlaybackPortList[i]);
00169 if (fWithMonitorPorts)
00170 fGraphManager->ReleasePort(fClientControl.fRefNum, fMonitorPortList[i]);
00171 }
00172
00173 return 0;
00174 }
00175
00176 int JackAudioDriver::Write()
00177 {
00178 for (int i = 0; i < fPlaybackChannels; i++) {
00179 if (fGraphManager->GetConnectionsNum(fPlaybackPortList[i]) > 0) {
00180 jack_default_audio_sample_t* buffer = GetOutputBuffer(i);
00181 int size = sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize;
00182
00183 if (fWithMonitorPorts && fGraphManager->GetConnectionsNum(fMonitorPortList[i]) > 0)
00184 memcpy(GetMonitorBuffer(i), buffer, size);
00185 }
00186 }
00187 return 0;
00188 }
00189
00190 int JackAudioDriver::ProcessNull()
00191 {
00192
00193 JackDriver::CycleTakeBeginTime();
00194
00195 if (fEngineControl->fSyncMode) {
00196 ProcessGraphSync();
00197 } else {
00198 ProcessGraphAsync();
00199 }
00200
00201
00202 JackDriver::CycleTakeEndTime();
00203 WaitUntilNextCycle();
00204 return 0;
00205 }
00206
00207 int JackAudioDriver::Process()
00208 {
00209 return (fEngineControl->fSyncMode) ? ProcessSync() : ProcessAsync();
00210 }
00211
00212
00213
00214
00215
00216
00217 int JackAudioDriver::ProcessAsync()
00218 {
00219
00220 if (Read() < 0) {
00221 jack_error("JackAudioDriver::ProcessAsync: read error, stopping...");
00222 return -1;
00223 }
00224
00225
00226 if (Write() < 0) {
00227 jack_error("JackAudioDriver::ProcessAsync: write error, stopping...");
00228 return -1;
00229 }
00230
00231
00232 if (fIsMaster) {
00233 ProcessGraphAsync();
00234 } else {
00235 fGraphManager->ResumeRefNum(&fClientControl, fSynchroTable);
00236 }
00237
00238
00239 JackDriver::CycleTakeEndTime();
00240 return 0;
00241 }
00242
00243
00244
00245
00246
00247
00248 int JackAudioDriver::ProcessSync()
00249 {
00250
00251 if (Read() < 0) {
00252 jack_error("JackAudioDriver::ProcessSync: read error, stopping...");
00253 return -1;
00254 }
00255
00256
00257 if (fIsMaster) {
00258 if (ProcessGraphSync() < 0) {
00259 jack_error("JackAudioDriver::ProcessSync: process error, skip cycle...");
00260 goto end;
00261 }
00262 } else {
00263 if (fGraphManager->ResumeRefNum(&fClientControl, fSynchroTable) < 0) {
00264 jack_error("JackAudioDriver::ProcessSync: process error, skip cycle...");
00265 goto end;
00266 }
00267 }
00268
00269
00270 if (Write() < 0) {
00271 jack_error("JackAudioDriver::ProcessSync: write error, stopping...");
00272 return -1;
00273 }
00274
00275 end:
00276
00277
00278 JackDriver::CycleTakeEndTime();
00279 return 0;
00280 }
00281
00282 void JackAudioDriver::ProcessGraphAsync()
00283 {
00284
00285 if (!fEngine->Process(fBeginDateUst, fEndDateUst))
00286 jack_error("JackAudioDriver::ProcessGraphAsync: Process error");
00287 fGraphManager->ResumeRefNum(&fClientControl, fSynchroTable);
00288 if (ProcessSlaves() < 0)
00289 jack_error("JackAudioDriver::ProcessGraphAsync: ProcessSlaves error");
00290 }
00291
00292 int JackAudioDriver::ProcessGraphSync()
00293 {
00294 int res = 0;
00295
00296
00297 if (fEngine->Process(fBeginDateUst, fEndDateUst)) {
00298 fGraphManager->ResumeRefNum(&fClientControl, fSynchroTable);
00299 if (ProcessSlaves() < 0) {
00300 jack_error("JackAudioDriver::ProcessGraphSync: ProcessSlaves error, engine may now behave abnormally!!");
00301 res = -1;
00302 }
00303 if (fGraphManager->SuspendRefNum(&fClientControl, fSynchroTable, DRIVER_TIMEOUT_FACTOR * fEngineControl->fTimeOutUsecs) < 0) {
00304 jack_error("JackAudioDriver::ProcessGraphSync: SuspendRefNum error, engine may now behave abnormally!!");
00305 res = -1;
00306 }
00307 } else {
00308 jack_error("JackAudioDriver::ProcessGraphSync: Process error");
00309 res = -1;
00310 }
00311
00312 return res;
00313 }
00314
00315 int JackAudioDriver::Start()
00316 {
00317 int res = JackDriver::Start();
00318 if ((res >= 0) && fIsMaster) {
00319 res = StartSlaves();
00320 }
00321 return res;
00322 }
00323
00324 int JackAudioDriver::Stop()
00325 {
00326 int res = JackDriver::Stop();
00327 if (fIsMaster) {
00328 if (StopSlaves() < 0) {
00329 res = -1;
00330 }
00331 }
00332 return res;
00333 }
00334
00335 void JackAudioDriver::WaitUntilNextCycle()
00336 {
00337 int wait_time_usec = (int((float(fEngineControl->fBufferSize) / (float(fEngineControl->fSampleRate))) * 1000000.0f));
00338 wait_time_usec = int(wait_time_usec - (GetMicroSeconds() - fBeginDateUst));
00339 if (wait_time_usec > 0)
00340 JackSleep(wait_time_usec);
00341 }
00342
00343 jack_default_audio_sample_t* JackAudioDriver::GetInputBuffer(int port_index)
00344 {
00345 assert(fCapturePortList[port_index]);
00346 return (jack_default_audio_sample_t*)fGraphManager->GetBuffer(fCapturePortList[port_index], fEngineControl->fBufferSize);
00347 }
00348
00349 jack_default_audio_sample_t* JackAudioDriver::GetOutputBuffer(int port_index)
00350 {
00351 assert(fPlaybackPortList[port_index]);
00352 return (jack_default_audio_sample_t*)fGraphManager->GetBuffer(fPlaybackPortList[port_index], fEngineControl->fBufferSize);
00353 }
00354
00355 jack_default_audio_sample_t* JackAudioDriver::GetMonitorBuffer(int port_index)
00356 {
00357 assert(fPlaybackPortList[port_index]);
00358 return (jack_default_audio_sample_t*)fGraphManager->GetBuffer(fMonitorPortList[port_index], fEngineControl->fBufferSize);
00359 }
00360
00361 int JackAudioDriver::ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2)
00362 {
00363 switch (notify) {
00364
00365 case kLatencyCallback:
00366 HandleLatencyCallback(value1);
00367 break;
00368
00369 default:
00370 JackDriver::ClientNotify(refnum, name, notify, sync, message, value1, value2);
00371 break;
00372 }
00373
00374 return 0;
00375 }
00376
00377 void JackAudioDriver::HandleLatencyCallback(int status)
00378 {
00379 jack_latency_callback_mode_t mode = (status == 0) ? JackCaptureLatency : JackPlaybackLatency;
00380
00381 for (int i = 0; i < fCaptureChannels; i++) {
00382 if (mode == JackPlaybackLatency) {
00383 fGraphManager->RecalculateLatency(fCapturePortList[i], mode);
00384 }
00385 }
00386
00387 for (int i = 0; i < fPlaybackChannels; i++) {
00388 if (mode == JackCaptureLatency) {
00389 fGraphManager->RecalculateLatency(fPlaybackPortList[i], mode);
00390 }
00391 }
00392 }
00393
00394 }