/[svn]/linuxsampler/trunk/src/engines/gig/DiskThread.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/DiskThread.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 53 by schoenebeck, Mon Apr 26 17:15:51 2004 UTC revision 1038 by persson, Sat Feb 3 15:33:00 2007 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Benno Senoner                                   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 48  namespace LinuxSampler { namespace gig { Line 49  namespace LinuxSampler { namespace gig {
49      void DiskThread::Reset() {      void DiskThread::Reset() {
50          bool running = this->IsRunning();          bool running = this->IsRunning();
51          if (running) this->StopThread();          if (running) this->StopThread();
52          for (int i = 0; i < MAX_INPUT_STREAMS; i++) {          for (int i = 0; i < CONFIG_MAX_STREAMS; i++) {
53              pStreams[i]->Kill();              pStreams[i]->Kill();
54          }          }
55          for (int i = 1; i <= MAX_INPUT_STREAMS; i++) {          for (int i = 1; i <= CONFIG_MAX_STREAMS; i++) {
56              pCreatedStreams[i] = NULL;              pCreatedStreams[i] = NULL;
57          }          }
58          GhostQueue->init();          GhostQueue->init();
59          CreationQueue->init();          CreationQueue->init();
60          DeletionQueue->init();          DeletionQueue->init();
61            DeleteDimregQueue->init();
62          ActiveStreamCount = 0;          ActiveStreamCount = 0;
63          ActiveStreamCountMax = 0;          ActiveStreamCountMax = 0;
64          if (running) this->StartThread(); // start thread only if it was running before          if (running) this->StartThread(); // start thread only if it was running before
# Line 85  namespace LinuxSampler { namespace gig { Line 87  namespace LinuxSampler { namespace gig {
87          std::stringstream ss;          std::stringstream ss;
88          for (uint i = 0; i < this->Streams; i++) {          for (uint i = 0; i < this->Streams; i++) {
89              if (pStreams[i]->GetState() == Stream::state_unused) continue;              if (pStreams[i]->GetState() == Stream::state_unused) continue;
90              uint bufferfill = (uint) ((float) pStreams[i]->GetReadSpace() / (float) STREAM_BUFFER_SIZE * 100);              uint bufferfill = (uint) ((float) pStreams[i]->GetReadSpace() / (float) CONFIG_STREAM_BUFFER_SIZE * 100);
91              uint streamid   = (uint) pStreams[i]->GetHandle();              uint streamid   = (uint) pStreams[i]->GetHandle();
92              if (!streamid) continue;              if (!streamid) continue;
93    
# Line 102  namespace LinuxSampler { namespace gig { Line 104  namespace LinuxSampler { namespace gig {
104       * Returns -1 if command queue or pickup pool is full, 0 on success (will be       * Returns -1 if command queue or pickup pool is full, 0 on success (will be
105       * called by audio thread within the voice class).       * called by audio thread within the voice class).
106       */       */
107      int DiskThread::OrderNewStream(Stream::reference_t* pStreamRef, ::gig::Sample* pSample, unsigned long SampleOffset, bool DoLoop) {      int DiskThread::OrderNewStream(Stream::reference_t* pStreamRef, ::gig::DimensionRegion* pDimRgn, unsigned long SampleOffset, bool DoLoop) {
108          dmsg(4,("Disk Thread: new stream ordered\n"));          dmsg(4,("Disk Thread: new stream ordered\n"));
109          if (CreationQueue->write_space() < 1) {          if (CreationQueue->write_space() < 1) {
110              dmsg(1,("DiskThread: Order queue full!\n"));              dmsg(1,("DiskThread: Order queue full!\n"));
111              return -1;              return -1;
112          }          }
113    
114            const Stream::OrderID_t newOrder = CreateOrderID();
115            if (!newOrder) {
116                    dmsg(1,("DiskThread: there was no free slot\n"));
117                    return -1; // there was no free slot
118            }
119    
120          pStreamRef->State   = Stream::state_active;          pStreamRef->State   = Stream::state_active;
121          pStreamRef->OrderID = CreateOrderID();          pStreamRef->OrderID = newOrder;
122          pStreamRef->hStream = CreateHandle();          pStreamRef->hStream = CreateHandle();
123          pStreamRef->pStream = NULL; // a stream has to be activated by the disk thread first          pStreamRef->pStream = NULL; // a stream has to be activated by the disk thread first
124    
         if (!pStreamRef->OrderID) return -1; // there was no free slot  
   
125          create_command_t cmd;          create_command_t cmd;
126          cmd.OrderID      = pStreamRef->OrderID;          cmd.OrderID      = pStreamRef->OrderID;
127          cmd.hStream      = pStreamRef->hStream;          cmd.hStream      = pStreamRef->hStream;
128          cmd.pStreamRef   = pStreamRef;          cmd.pStreamRef   = pStreamRef;
129          cmd.pSample      = pSample;          cmd.pDimRgn      = pDimRgn;
130          cmd.SampleOffset = SampleOffset;          cmd.SampleOffset = SampleOffset;
131          cmd.DoLoop       = DoLoop;          cmd.DoLoop       = DoLoop;
132    
# Line 149  namespace LinuxSampler { namespace gig { Line 155  namespace LinuxSampler { namespace gig {
155      }      }
156    
157      /**      /**
158         * Tell the disk thread to release a dimension region that belong
159         * to an instrument which isn't loaded anymore. The disk thread
160         * will hand back the dimension region to the instrument resource
161         * manager. (OrderDeletionOfDimreg is called from the audio thread
162         * when a voice dies.)
163         */
164        int DiskThread::OrderDeletionOfDimreg(::gig::DimensionRegion* dimreg) {
165            dmsg(4,("Disk Thread: dimreg deletion ordered\n"));
166            if (DeleteDimregQueue->write_space() < 1) {
167                dmsg(1,("DiskThread: DeleteDimreg queue full!\n"));
168                return -1;
169            }
170            DeleteDimregQueue->push(&dimreg);
171            return 0;
172        }
173    
174        /**
175       * Returns the pointer to a disk stream if the ordered disk stream       * Returns the pointer to a disk stream if the ordered disk stream
176       * represented by the \a StreamOrderID was already activated by the disk       * represented by the \a StreamOrderID was already activated by the disk
177       * thread, returns NULL otherwise. If the call was successful, thus if it       * thread, returns NULL otherwise. If the call was successful, thus if it
# Line 180  namespace LinuxSampler { namespace gig { Line 203  namespace LinuxSampler { namespace gig {
203      // #         (following code should only be executed by the disk thread)      // #         (following code should only be executed by the disk thread)
204    
205    
206      DiskThread::DiskThread(uint BufferWrapElements) : Thread(false, 1, -2) {      DiskThread::DiskThread(uint BufferWrapElements, InstrumentResourceManager* pInstruments) :
207          CreationQueue       = new RingBuffer<create_command_t>(1024);          Thread(true, false, 1, -2),
208          DeletionQueue       = new RingBuffer<delete_command_t>(1024);          pInstruments(pInstruments) {
209          GhostQueue          = new RingBuffer<Stream::Handle>(MAX_INPUT_STREAMS);          DecompressionBuffer = ::gig::Sample::CreateDecompressionBuffer(CONFIG_STREAM_MAX_REFILL_SIZE);
210          Streams             = MAX_INPUT_STREAMS;          CreationQueue       = new RingBuffer<create_command_t,false>(1024);
211          RefillStreamsPerRun = REFILL_STREAMS_PER_RUN;          DeletionQueue       = new RingBuffer<delete_command_t,false>(1024);
212          for (int i = 0; i < MAX_INPUT_STREAMS; i++) {          GhostQueue          = new RingBuffer<Stream::Handle,false>(CONFIG_MAX_STREAMS);
213              pStreams[i] = new Stream(STREAM_BUFFER_SIZE, BufferWrapElements); // 131072 sample words          DeleteDimregQueue   = new RingBuffer< ::gig::DimensionRegion*,false>(1024);
214            Streams             = CONFIG_MAX_STREAMS;
215            RefillStreamsPerRun = CONFIG_REFILL_STREAMS_PER_RUN;
216            for (int i = 0; i < CONFIG_MAX_STREAMS; i++) {
217                pStreams[i] = new Stream(&DecompressionBuffer, CONFIG_STREAM_BUFFER_SIZE, BufferWrapElements); // 131072 sample words
218          }          }
219          for (int i = 1; i <= MAX_INPUT_STREAMS; i++) {          for (int i = 1; i <= CONFIG_MAX_STREAMS; i++) {
220              pCreatedStreams[i] = NULL;              pCreatedStreams[i] = NULL;
221          }          }
222            ActiveStreamCountMax = 0;
223      }      }
224    
225      DiskThread::~DiskThread() {      DiskThread::~DiskThread() {
226          for (int i = 0; i < MAX_INPUT_STREAMS; i++) {          for (int i = 0; i < CONFIG_MAX_STREAMS; i++) {
227              if (pStreams[i]) delete pStreams[i];              if (pStreams[i]) delete pStreams[i];
228          }          }
229          if (CreationQueue) delete CreationQueue;          if (CreationQueue) delete CreationQueue;
230          if (DeletionQueue) delete DeletionQueue;          if (DeletionQueue) delete DeletionQueue;
231          if (GhostQueue)    delete GhostQueue;          if (GhostQueue)    delete GhostQueue;
232            if (DeleteDimregQueue) delete DeleteDimregQueue;
233            ::gig::Sample::DestroyDecompressionBuffer(DecompressionBuffer);
234      }      }
235    
236      int DiskThread::Main() {      int DiskThread::Main() {
237          dmsg(3,("Disk thread running\n"));          dmsg(3,("Disk thread running\n"));
238          while (true) {          while (true) {
239                pthread_testcancel(); // mandatory for OSX
240              IsIdle = true; // will be set to false if a stream got filled              IsIdle = true; // will be set to false if a stream got filled
241    
242              // if there are ghost streams, delete them              // if there are ghost streams, delete them
# Line 231  namespace LinuxSampler { namespace gig { Line 262  namespace LinuxSampler { namespace gig {
262              }              }
263    
264              // if there are deletion commands, delete those streams              // if there are deletion commands, delete those streams
265              while (Stream::UnusedStreams < Streams && DeletionQueue->read_space() > 0) {              while (Stream::UnusedStreams < Stream::TotalStreams && DeletionQueue->read_space() > 0) {
266                  delete_command_t command;                  delete_command_t command;
267                  DeletionQueue->pop(&command);                  DeletionQueue->pop(&command);
268                  DeleteStream(command);                  DeleteStream(command);
269              }              }
270    
271                // release DimensionRegions that belong to instruments
272                // that are no longer loaded
273                while (DeleteDimregQueue->read_space() > 0) {
274                    ::gig::DimensionRegion* dimreg;
275                    DeleteDimregQueue->pop(&dimreg);
276                    pInstruments->HandBackDimReg(dimreg);
277                }
278    
279              RefillStreams(); // refill the most empty streams              RefillStreams(); // refill the most empty streams
280    
281              // if nothing was done during this iteration (eg no streambuffer              // if nothing was done during this iteration (eg no streambuffer
282              // filled with data) then sleep for 50ms              // filled with data) then sleep for 30ms
283              if (IsIdle) usleep(30000);              if (IsIdle) usleep(30000);
284    
285              int streamsInUsage = 0;              int streamsInUsage = 0;
# Line 267  namespace LinuxSampler { namespace gig { Line 306  namespace LinuxSampler { namespace gig {
306              std::cerr << "No unused stream found (OrderID:" << Command.OrderID << ") - report if this happens, this is a bug!\n" << std::flush;              std::cerr << "No unused stream found (OrderID:" << Command.OrderID << ") - report if this happens, this is a bug!\n" << std::flush;
307              return;              return;
308          }          }
309          newstream->Launch(Command.hStream, Command.pStreamRef, Command.pSample, Command.SampleOffset, Command.DoLoop);          newstream->Launch(Command.hStream, Command.pStreamRef, Command.pDimRgn, Command.SampleOffset, Command.DoLoop);
310          dmsg(4,("new Stream launched by disk thread (OrderID:%d,StreamHandle:%d)\n", Command.OrderID, Command.hStream));          dmsg(4,("new Stream launched by disk thread (OrderID:%d,StreamHandle:%d)\n", Command.OrderID, Command.hStream));
311          if (pCreatedStreams[Command.OrderID] != SLOT_RESERVED) {          if (pCreatedStreams[Command.OrderID] != SLOT_RESERVED) {
312              std::cerr << "DiskThread: Slot " << Command.OrderID << " already occupied! Please report this!\n" << std::flush;              std::cerr << "DiskThread: Slot " << Command.OrderID << " already occupied! Please report this!\n" << std::flush;
# Line 313  namespace LinuxSampler { namespace gig { Line 352  namespace LinuxSampler { namespace gig {
352    
353                  int capped_writespace = writespace;                  int capped_writespace = writespace;
354                  // if there is too much buffer space available then cut the read/write                  // if there is too much buffer space available then cut the read/write
355                  // size to MAX_REFILL_SIZE which is by default 65536 samples = 256KBytes                  // size to CONFIG_STREAM_MAX_REFILL_SIZE which is by default 65536 samples = 256KBytes
356                  if (writespace > MAX_REFILL_SIZE) capped_writespace = MAX_REFILL_SIZE;                  if (writespace > CONFIG_STREAM_MAX_REFILL_SIZE) capped_writespace = CONFIG_STREAM_MAX_REFILL_SIZE;
357    
358                  // adjust the amount to read in order to ensure that the buffer wraps correctly                  // adjust the amount to read in order to ensure that the buffer wraps correctly
359                  int read_amount = pStreams[i]->AdjustWriteSpaceToAvoidBoundary(writespace, capped_writespace);                  int read_amount = pStreams[i]->AdjustWriteSpaceToAvoidBoundary(writespace, capped_writespace);
360                  // if we wasn't able to refill one of the stream buffers by more than                  // if we wasn't able to refill one of the stream buffers by more than
361                  // MIN_REFILL_SIZE we'll send the disk thread to sleep later                  // CONFIG_STREAM_MIN_REFILL_SIZE we'll send the disk thread to sleep later
362                  if (pStreams[i]->ReadAhead(read_amount) > MIN_REFILL_SIZE) this->IsIdle = false;                  if (pStreams[i]->ReadAhead(read_amount) > CONFIG_STREAM_MIN_REFILL_SIZE) this->IsIdle = false;
363              }              }
364          }          }
365      }      }
# Line 335  namespace LinuxSampler { namespace gig { Line 374  namespace LinuxSampler { namespace gig {
374    
375      /// order ID Generator      /// order ID Generator
376      Stream::OrderID_t DiskThread::CreateOrderID() {      Stream::OrderID_t DiskThread::CreateOrderID() {
377          static uint32_t counter = 0;          static Stream::OrderID_t counter(0);
378          for (int i = 0; i < MAX_INPUT_STREAMS; i++) {          for (int i = 0; i < CONFIG_MAX_STREAMS; i++) {
379              if (counter == MAX_INPUT_STREAMS) counter = 1; // we use '0' as 'invalid order' only, so we skip 0              if (counter == CONFIG_MAX_STREAMS) counter = 1; // we use '0' as 'invalid order' only, so we skip 0
380              else                              counter++;              else                              counter++;
381              if (!pCreatedStreams[counter]) {              if (!pCreatedStreams[counter]) {
382                  pCreatedStreams[counter] = SLOT_RESERVED; // mark this slot as reserved                  pCreatedStreams[counter] = SLOT_RESERVED; // mark this slot as reserved
Legend:
Removed from v.53  
changed lines
  Added in v.1038
  ViewVC Help
Powered by ViewVC