static wavinfo_t GetWavinfo(string name, byte[] wav, int wavlength)
{
wavinfo_t info = new wavinfo_t();
int i;
int format;
int samples;
if (wav == null)
{
return(info);
}
iff_data = 0;
iff_end = wavlength;
data_b = wav;
FindChunk("RIFF");
string s = Encoding.ASCII.GetString(data_b, 8, 4); //, data_p + 8, 4);
if (!s.Equals("WAVE"))
{
Com.Printf("Missing RIFF/WAVE chunks\\n");
return(info);
}
iff_data = data_p + 12;
FindChunk("fmt ");
if (data_p == 0)
{
Com.Printf("Missing fmt chunk\\n");
return(info);
}
data_p += 8;
format = GetLittleShort();
if (format != 1)
{
Com.Printf("Microsoft PCM format only\\n");
return(info);
}
info.channels = GetLittleShort();
info.rate = GetLittleLong();
data_p += 4 + 2;
info.width = GetLittleShort() / 8;
FindChunk("cue ");
if (data_p != 0)
{
data_p += 32;
info.loopstart = GetLittleLong();
FindNextChunk("LIST");
if (data_p != 0)
{
if (data_b.Length >= data_p + 32)
{
s = Encoding.ASCII.GetString(data_b, 28, 4); //new string (data_b, data_p + 28, 4);
if (s.Equals("MARK"))
{
data_p += 24;
i = GetLittleLong();
info.samples = info.loopstart + i;
}
}
}
}
else
{
info.loopstart = -1;
}
FindChunk("data");
if (data_p == 0)
{
Com.Printf("Missing data chunk\\n");
return(info);
}
data_p += 4;
samples = GetLittleLong() / info.width;
if (info.samples != 0)
{
if (samples < info.samples)
{
Com.Error(Defines.ERR_DROP, "Sound " + name + " has a bad loop length");
}
}
else
{
info.samples = samples;
if (info.loopstart > 0)
{
info.samples -= info.loopstart;
}
}
info.dataofs = data_p;
return(info);
}
public static sfxcache_t LoadSound(sfx_t s)
{
if (s.name[0] == '*')
{
return(null);
}
sfxcache_t sc = s.cache;
if (sc != null)
{
return(sc);
}
string name;
if (s.truename != null)
{
name = s.truename;
}
else
{
name = s.name;
}
string namebuffer;
if (name[0] == '#')
{
namebuffer = name.Substring(1);
}
else
{
namebuffer = "sound/" + name;
}
byte[] data = FS.LoadFile(namebuffer);
if (data == null)
{
Com.DPrintf("Couldn't load " + namebuffer + "\\n");
return(null);
}
int size = data.Length;
wavinfo_t info = GetWavinfo(s.name, data, size);
if (info.channels != 1)
{
Com.Printf(s.name + " is a stereo sample - ignoring\\n");
return(null);
}
float stepscale;
if (DONT_DO_A_RESAMPLING_FOR_JOAL_AND_LWJGL)
{
stepscale = 1;
}
else
{
stepscale = (float)info.rate / S.GetDefaultSampleRate();
}
int len = (int)(info.samples / stepscale);
len = len * info.width * info.channels;
if (len >= maxsamplebytes)
{
Com.Printf(s.name + " is too long: " + len + " bytes?! ignoring.\\n");
return(null);
}
sc = s.cache = new sfxcache_t(len);
sc.length = info.samples;
sc.loopstart = info.loopstart;
sc.speed = info.rate;
sc.width = info.width;
sc.stereo = info.channels;
ResampleSfx(s, sc.speed, sc.width, data, info.dataofs);
data = null;
return(sc);
}
