///Computes and writes the data for one BlockFile if it still has a refcount.
void ODComputeSummaryTask::DoSomeInternal()
{
if(mBlockFiles.size()<=0)
{
mPercentCompleteMutex.Lock();
mPercentComplete = 1.0;
mPercentCompleteMutex.Unlock();
return;
}
ODPCMAliasBlockFile* bf;
int blockStartSample;
int blockEndSample;
bool success =false;
bf = mBlockFiles[0];
//first check to see if the ref count is at least 2. It should have one
//from when we added it to this instance's mBlockFiles array, and one from
//the Wavetrack/sequence. If it doesn't it has been deleted and we should forget it.
if(bf->RefCount()>=2)
{
bf->DoWriteSummary();
success = true;
blockStartSample = bf->GetStart();
blockEndSample = blockStartSample + bf->GetLength();
mComputedBlockFiles++;
}
else
{
//the waveform in the wavetrack now is shorter, so we need to update mMaxBlockFiles
//because now there is less work to do.
mMaxBlockFiles--;
}
//Release the refcount we placed on it.
bf->Deref();
//take it out of the array - we are done with it.
mBlockFiles.erase(mBlockFiles.begin());
//update percentage complete.
mPercentCompleteMutex.Lock();
mPercentComplete = (float) 1.0 - ((float)mBlockFiles.size() / (mMaxBlockFiles+1));
mPercentCompleteMutex.Unlock();
//TODO: update track gui somehow.. or do it from a timer. How does the cursor move in playback?
mWaveTrackMutex.Lock();
if(success && mWaveTrack)
mWaveTrack->AddInvalidRegion(blockStartSample,blockEndSample);
mWaveTrackMutex.Unlock();
}
///Computes and writes the data for one BlockFile if it still has a refcount.
void ODComputeSummaryTask::DoSomeInternal()
{
if(mBlockFiles.size()<=0)
{
mPercentCompleteMutex.Lock();
mPercentComplete = 1.0;
mPercentCompleteMutex.Unlock();
return;
}
ODPCMAliasBlockFile* bf;
sampleCount blockStartSample = 0;
sampleCount blockEndSample = 0;
bool success =false;
mBlockFilesMutex.Lock();
for(size_t i=0; i < mWaveTracks.size() && mBlockFiles.size();i++)
{
bf = mBlockFiles[0];
//first check to see if the ref count is at least 2. It should have one
//from when we added it to this instance's mBlockFiles array, and one from
//the Wavetrack/sequence. If it doesn't it has been deleted and we should forget it.
if(bf->RefCount()>=2)
{
bf->DoWriteSummary();
success = true;
blockStartSample = bf->GetStart();
blockEndSample = blockStartSample + bf->GetLength();
mComputedBlockFiles++;
}
else
{
//the waveform in the wavetrack now is shorter, so we need to update mMaxBlockFiles
//because now there is less work to do.
mMaxBlockFiles--;
}
//Release the refcount we placed on it.
bf->Deref();
//take it out of the array - we are done with it.
mBlockFiles.erase(mBlockFiles.begin());
//This is a bit of a convenience in case someone tries to terminate the task by closing the trackpanel or window.
//ODComputeSummaryTask::Terminate() uses this lock to remove everything, and we don't want it to wait since the UI is being blocked.
mBlockFilesMutex.Unlock();
wxThread::This()->Yield();
mBlockFilesMutex.Lock();
//upddate the gui for all associated blocks. It doesn't matter that we're hitting more wavetracks then we should
//because this loop runs a number of times equal to the number of tracks, they probably are getting processed in
//the next iteration at the same sample window.
mWaveTrackMutex.Lock();
for(size_t i=0;i<mWaveTracks.size();i++)
{
if(success && mWaveTracks[i])
mWaveTracks[i]->AddInvalidRegion(blockStartSample,blockEndSample);
}
mWaveTrackMutex.Unlock();
}
mBlockFilesMutex.Unlock();
//update percentage complete.
CalculatePercentComplete();
}