public static void PlaySample(Level level, WadSample sample, int channel, float volume = 1.0f, float pitch = 1.0f, float pan = 0.0f, int loopCount = 1)
{
if (volume <= 0.0f || loopCount <= 0)
{
return;
}
var disposables = new List <IDisposable>();
try
{
// Load data.
// If waveform data is loaded into memory, use it to play sound, otherwise find wav file on disk.
WaveFileReader waveStream;
MemoryStream memoryStream;
if (sample.IsLoaded)
{
memoryStream = disposables.AddAndReturn(new MemoryStream(sample.Data, false));
waveStream = disposables.AddAndReturn(new WaveFileReader(memoryStream));
}
else
{
var path = WadSounds.TryGetSamplePath(level.Settings, sample.FileName);
if (path == null)
{
return;
}
else
{
waveStream = disposables.AddAndReturn(new WaveFileReader(path));
}
}
// Apply looping
ISampleProvider sampleStream;
if (loopCount <= 1)
{
sampleStream = waveStream.ToSampleProvider();
}
else
{
sampleStream = new RepeatedStream(waveStream)
{
LoopCount = loopCount
}
};
// Always play sample as 22 khz
if (sampleStream.WaveFormat.SampleRate != 22050)
{
sampleStream = new PitchedStream {
Source = sampleStream, Pitch = 22050.0f / sampleStream.WaveFormat.SampleRate
}
}
;
// Apply panning
if (pan != 1.0f)
{
sampleStream = new PanningSampleProvider(sampleStream)
{
Pan = pan
}
}
;
// Apply pitch
if (pitch != 1.0f)
{
sampleStream = new PitchedStream {
Source = sampleStream, Pitch = pitch
}
}
;
// Apply volume
if (volume != 1.0f)
{
sampleStream = new VolumeSampleProvider(sampleStream)
{
Volume = volume
}
}
;
// Add some silence to make sure the audio plays out.
const int latencyInMilliseconds = 200;
int latencyInSamples = (sampleStream.WaveFormat.SampleRate * latencyInMilliseconds * 2) / 1000;
sampleStream = new OffsetSampleProvider(sampleStream)
{
LeadOutSamples = sampleStream.WaveFormat.Channels * latencyInSamples
};
// Play
_channels[channel] = disposables.AddAndReturn(new WaveOut());
_channels[channel].Init(sampleStream);
_channels[channel].PlaybackStopped += (s, e) =>
{
foreach (IDisposable disposable in disposables)
{
disposable?.Dispose();
}
_channels[channel] = null;
_indices[channel] = -1;
};
_channels[channel].Play();
}
catch (Exception ex)
{
// Clean up in case of a problem
foreach (IDisposable disposable in disposables)
{
disposable?.Dispose();
}
_logger.Error("Error while playing sample " + sample + ", exception: " + ex);
}
}
private static bool LoadSamples(ChunkReader chunkIO, ChunkId idOuter, Wad2 wad, ref Dictionary <long, WadSample> outSamples, bool obsolete)
{
if (idOuter != Wad2Chunks.Samples)
{
return(false);
}
var samples = new Dictionary <long, WadSample>();
long obsoleteIndex = 0; // Move this into each chunk once we got rid of old style *.wad2 files.
chunkIO.ReadChunks((id, chunkSize) =>
{
if (id != Wad2Chunks.Sample)
{
return(false);
}
string FilenameObsolete = null;
byte[] data = null;
chunkIO.ReadChunks((id2, chunkSize2) =>
{
if (id2 == Wad2Chunks.SampleIndex)
{
obsoleteIndex = chunkIO.ReadChunkLong(chunkSize2);
}
else if (id2 == Wad2Chunks.SampleFilenameObsolete)
{
FilenameObsolete = chunkIO.ReadChunkString(chunkSize2);
}
else if (id2 == Wad2Chunks.SampleData)
{
data = chunkIO.ReadChunkArrayOfBytes(chunkSize2);
}
else
{
return(false);
}
return(true);
});
if (data == null && !string.IsNullOrEmpty(FilenameObsolete))
{
string fullPath = Path.Combine(PathC.GetDirectoryNameTry(Assembly.GetEntryAssembly().Location), "Sounds\\TR4\\Samples", FilenameObsolete + ".wav");
data = File.ReadAllBytes(fullPath);
}
samples.Add(obsoleteIndex++, new WadSample("", WadSample.ConvertSampleFormat(data,
sampleRate => obsolete ?
new WadSample.ResampleInfo {
Resample = false, SampleRate = WadSample.GameSupportedSampleRate
} :
new WadSample.ResampleInfo {
Resample = true, SampleRate = sampleRate
})));
return(true);
});
outSamples = samples;
return(true);
}