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public static Check ( |
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| Résultat | object | |
// S_SoundList
private static void SoundList()
{
int total = 0;
for (int i = 0; i < _NumSfx; i++)
{
sfx_t sfx = _KnownSfx[i];
sfxcache_t sc = (sfxcache_t)Cache.Check(sfx.cache);
if (sc == null)
{
continue;
}
int size = sc.length * sc.width * (sc.stereo + 1);
total += size;
if (sc.loopstart >= 0)
{
Con.Print("L");
}
else
{
Con.Print(" ");
}
Con.Print("({0:d2}b) {1:g6} : {2}\n", sc.width * 8, size, sfx.name);
}
Con.Print("Total resident: {0}\n", total);
}
// S_TouchSound (char *sample)
public static void TouchSound(string sample)
{
if (!_Controller.IsInitialized)
{
return;
}
sfx_t sfx = FindName(sample);
Cache.Check(sfx.cache);
}
// S_LoadSound
private static sfxcache_t LoadSound(sfx_t s)
{
// see if still in memory
sfxcache_t sc = (sfxcache_t)Cache.Check(s.cache);
if (sc != null)
{
return(sc);
}
// load it in
string namebuffer = "sound/" + s.name;
byte[] data = common.LoadFile(namebuffer);
if (data == null)
{
Con.Print("Couldn't load {0}\n", namebuffer);
return(null);
}
wavinfo_t info = GetWavInfo(s.name, data);
if (info.channels != 1)
{
Con.Print("{0} is a stereo sample\n", s.name);
return(null);
}
float stepscale = info.rate / (float)_shm.speed;
int len = (int)(info.samples / stepscale);
len *= info.width * info.channels;
s.cache = Cache.Alloc(len, s.name);
if (s.cache == null)
{
return(null);
}
sc = new sfxcache_t();
sc.length = info.samples;
sc.loopstart = info.loopstart;
sc.speed = info.rate;
sc.width = info.width;
sc.stereo = info.channels;
s.cache.data = sc;
ResampleSfx(s, sc.speed, sc.width, new ByteArraySegment(data, info.dataofs));
return(sc);
}
// ResampleSfx
private static void ResampleSfx(sfx_t sfx, int inrate, int inwidth, ByteArraySegment data)
{
sfxcache_t sc = (sfxcache_t)Cache.Check(sfx.cache);
if (sc == null)
{
return;
}
float stepscale = (float)inrate / _shm.speed; // this is usually 0.5, 1, or 2
int outcount = (int)(sc.length / stepscale);
sc.length = outcount;
if (sc.loopstart != -1)
{
sc.loopstart = (int)(sc.loopstart / stepscale);
}
sc.speed = _shm.speed;
if (_LoadAs8bit.Value != 0)
{
sc.width = 1;
}
else
{
sc.width = inwidth;
}
sc.stereo = 0;
sc.data = new byte[outcount * sc.width]; // uze: check this later!!!
// resample / decimate to the current source rate
byte[] src = data.Data;
if (stepscale == 1 && inwidth == 1 && sc.width == 1)
{
// fast special case
for (int i = 0; i < outcount; i++)
{
int v = src[data.StartIndex + i] - 128;
sc.data[i] = (byte)((sbyte)v); //((signed char *)sc.data)[i] = (int)( (unsigned char)(data[i]) - 128);
}
}
else
{
// general case
int samplefrac = 0;
int fracstep = (int)(stepscale * 256);
int sample;
short[] sa = new short[1];
for (int i = 0; i < outcount; i++)
{
int srcsample = samplefrac >> 8;
samplefrac += fracstep;
if (inwidth == 2)
{
Buffer.BlockCopy(src, data.StartIndex + srcsample * 2, sa, 0, 2);
sample = Common.LittleShort(sa[0]); // ((short *)data)[srcsample] );
}
else
{
sample = (int)(src[data.StartIndex + srcsample] - 128) << 8;
//sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
}
if (sc.width == 2)
{
sa[0] = (short)sample;
Buffer.BlockCopy(sa, 0, sc.data, i * 2, 2); //((short *)sc->data)[i] = sample;
}
else
{
sc.data[i] = (byte)(sbyte)(sample >> 8); //((signed char *)sc->data)[i] = sample >> 8;
}
}
}
}