public int SampleCount(LevelSettings settings)
{
if (settings.GameVersion.UsesMainSfx() || Samples == null || Samples.Count <= 0)
{
return(-1);
}
int result = 0;
foreach (var sample in Samples)
{
var path = WadSounds.TryGetSamplePath(settings, sample.FileName);
if (path != null)
{
result++;
}
}
return(result);
}
public static SortedDictionary <int, WadSample> CompileSamples(List <WadSoundInfo> soundMap, LevelSettings settings, bool onlyIndexed, IProgressReporter reporter, out bool samplesMissing)
{
var samples = new List <WadSample>();
foreach (var soundInfo in soundMap)
{
if (onlyIndexed && !soundInfo.Indexed)
{
continue;
}
foreach (var sample in soundInfo.Samples)
{
samples.Add(sample);
}
}
var loadedSamples = new SortedDictionary <int, WadSample>();
// Set up maximum buffer sizes and sample rate
int maxBufferLength = 1024 * 256;
int warnBufferLength = 1024 * 256;
uint supportedSampleRate = 22050;
uint supportedBitness = 16;
switch (settings.GameVersion)
{
case TRVersion.Game.TR5Main:
maxBufferLength = int.MaxValue; // Unlimited
warnBufferLength = int.MaxValue;
break;
case TRVersion.Game.TR4:
case TRVersion.Game.TRNG:
maxBufferLength = 1024 * 1024; // Raised TREP limit
break;
case TRVersion.Game.TR1:
case TRVersion.Game.TR2:
supportedSampleRate = 11025;
supportedBitness = 8;
break;
}
var missing = false;
Parallel.For(0, samples.Count, i =>
{
WadSample currentSample = NullSample;
try
{
string samplePath = WadSounds.TryGetSamplePath(settings, samples[i].FileName);
// If sample was found, then load it...
if (!string.IsNullOrEmpty(samplePath))
{
using (var stream = new FileStream(samplePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var buffer = new byte[stream.Length];
if (stream.Read(buffer, 0, buffer.Length) != buffer.Length)
{
throw new EndOfStreamException();
}
if (settings.GameVersion.UsesMainSfx())
{
var sampleRate = settings.GameVersion < TRVersion.Game.TR3 ? 11025 : 22050;
currentSample = new WadSample(samplePath, ConvertSampleFormat(buffer, true, (uint)sampleRate));
}
else
{
currentSample = new WadSample(samplePath, ConvertSampleFormat(buffer, false));
}
if (currentSample.SampleRate != supportedSampleRate)
{
reporter?.ReportWarn("Sample " + samplePath + " has a sample rate of " + currentSample.SampleRate + " which is unsupported for this engine version.");
}
if (currentSample.ChannelCount > 1)
{
reporter?.ReportWarn("Sample " + samplePath + " isn't mono. Only mono samples are supported. Crashes may occur.");
}
if (currentSample.BitsPerSample != supportedBitness)
{
reporter?.ReportWarn("Sample " + samplePath + " is not " + supportedBitness + "-bit sample and is not supported in this game version. Crashes may occur.");
}
if (buffer.Length > maxBufferLength)
{
reporter?.ReportWarn("Sample " + samplePath + " is more than " + maxBufferLength / 1024 + " kbytes long. It is too big for this game version, crashes may occur.");
}
else if (buffer.Length > warnBufferLength)
{
reporter?.ReportWarn("Sample " + samplePath + " is more than " + warnBufferLength / 1024 + " kbytes long. It may cause problems without additional measures, such as patching.");
}
}
}
// ... otherwise output null sample
else
{
currentSample = WadSample.NullSample;
logger.Warn(new FileNotFoundException(), "Unable to find sample '" + samplePath + "'");
missing = true;
}
}
catch (Exception exc)
{
logger.Warn(exc, "Unable to read file '" + samples[i].FileName + "' from provided location.");
}
lock (loadedSamples)
loadedSamples.Add(i, currentSample);
});
if (missing)
{
reporter?.ReportWarn("Some samples are missing. Make sure sample paths are specified correctly. Check level settings for details.");
}
samplesMissing = missing;
return(loadedSamples);
}
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);
}
}