// ---------------------------------------------------------------------------
// リズム音を読みこむ
//
public bool LoadRhythmSample(Func <string, Stream> appendFileReaderCallback)
{
string[] rhythmname = new string[6]
{
"BD", "SD", "TOP", "HH", "TOM", "RIM",
};
int i;
for (i = 0; i < 6; i++)
{
rhythm[i].pos = ~(uint)0;
}
for (i = 0; i < 6; i++)
{
byte[] buf = null;
int filePtr = 0;
uint fsize;
string fileName = string.Format("2608_{0}.WAV", rhythmname[i]);
using (Stream st = appendFileReaderCallback?.Invoke(fileName))
{
buf = ReadAllBytes(st);
}
if (buf == null)
{
if (i != 5)
{
break;
}
string fileNameRym = "2608_RYM.WAV";
using (Stream st = appendFileReaderCallback?.Invoke(fileNameRym))
{
buf = ReadAllBytes(st);
}
}
whdr whdr = new whdr();
filePtr = 0x10;
byte[] bufWhdr = new byte[4 + 2 + 2 + 4 + 4 + 2 + 2 + 2];
for (int ind = 0; ind < bufWhdr.Length; ind++)
{
bufWhdr[ind] = buf[filePtr + ind];
}
whdr.chunksize = (uint)(bufWhdr[0] + bufWhdr[1] * 0x100 + bufWhdr[2] * 0x10000 + bufWhdr[3] * 0x10000);
whdr.tag = (uint)(bufWhdr[4] + bufWhdr[5] * 0x100);
whdr.nch = (uint)(bufWhdr[6] + bufWhdr[7] * 0x100);
whdr.rate = (uint)(bufWhdr[8] + bufWhdr[9] * 0x100 + bufWhdr[10] * 0x10000 + bufWhdr[11] * 0x10000);
whdr.avgbytes = (uint)(bufWhdr[12] + bufWhdr[13] * 0x100 + bufWhdr[14] * 0x10000 + bufWhdr[15] * 0x10000);
whdr.align = (uint)(bufWhdr[16] + bufWhdr[17] * 0x100);
whdr.bps = (uint)(bufWhdr[18] + bufWhdr[19] * 0x100);
whdr.size = (uint)(bufWhdr[20] + bufWhdr[21] * 0x100);
byte[] subchunkname = new byte[4];
fsize = 4 + whdr.chunksize;
do
{
filePtr += (int)fsize;
for (int ind = 0; ind < 4; ind++)
{
subchunkname[ind] = buf[filePtr++];
}
for (int ind = 0; ind < 4; ind++)
{
bufWhdr[ind] = buf[filePtr++];
}
fsize = (uint)(bufWhdr[0] + bufWhdr[1] * 0x100 + bufWhdr[2] * 0x10000 + bufWhdr[3] * 0x10000);
} while ('d' != subchunkname[0] && 'a' != subchunkname[1] && 't' != subchunkname[2] && 'a' != subchunkname[3]);
fsize /= 2;
if (fsize >= 0x100000 || whdr.tag != 1 || whdr.nch != 1)
{
break;
}
fsize = (uint)Math.Max(fsize, (1 << 31) / 1024);
rhythm[i].sample = null;
rhythm[i].sample = new int[fsize];
if (rhythm[i].sample == null)
{
break;
}
byte[] bufSample = new byte[fsize * 2];
for (int ind = 0; ind < (fsize * 2); ind++)
{
bufSample[ind] = buf[filePtr++];
}
for (int si = 0; si < fsize; si++)
{
rhythm[i].sample[si] = (short)(bufSample[si * 2] + bufSample[si * 2 + 1] * 0x100);
}
rhythm[i].rate = whdr.rate;
rhythm[i].step = rhythm[i].rate * 1024 / rate;
rhythm[i].pos = rhythm[i].size = fsize * 1024;
}
if (i != 6)
{
for (i = 0; i < 6; i++)
{
rhythm[i].sample = null;
}
return(false);
}
return(true);
}
// ---------------------------------------------------------------------------
// リズム音を読みこむ
//
public bool LoadRhythmSample(string path)
{
string[] rhythmname = new string[6]
{
"BD", "SD", "TOP", "HH", "TOM", "RIM",
};
int i;
for (i = 0; i < 6; i++)
{
rhythm[i].pos = ~(uint)0;
}
for (i = 0; i < 6; i++)
{
byte[] buf = null;
int filePtr = 0;
uint fsize;
string fileName = "";
if (path != null && path != "")
{
fileName = path;
}
fileName = fileName + "2608_";
fileName = fileName + rhythmname[i];
fileName = fileName + ".WAV";
try
{
buf = System.IO.File.ReadAllBytes(fileName);
}
catch
{
buf = null;
}
if (buf == null)
{
if (i != 5)
{
break;
}
if (path != null && path != "")
{
fileName = path;
}
fileName = fileName + "2608_RYM.WAV";
try
{
buf = System.IO.File.ReadAllBytes(fileName);
}
catch
{
break;
}
}
whdr whdr = new whdr();
filePtr = 0x10;
byte[] bufWhdr = new byte[4 + 2 + 2 + 4 + 4 + 2 + 2 + 2];
for (int ind = 0; ind < bufWhdr.Length; ind++)
{
bufWhdr[ind] = buf[filePtr + ind];
}
whdr.chunksize = (uint)(bufWhdr[0] + bufWhdr[1] * 0x100 + bufWhdr[2] * 0x10000 + bufWhdr[3] * 0x10000);
whdr.tag = (uint)(bufWhdr[4] + bufWhdr[5] * 0x100);
whdr.nch = (uint)(bufWhdr[6] + bufWhdr[7] * 0x100);
whdr.rate = (uint)(bufWhdr[8] + bufWhdr[9] * 0x100 + bufWhdr[10] * 0x10000 + bufWhdr[11] * 0x10000);
whdr.avgbytes = (uint)(bufWhdr[12] + bufWhdr[13] * 0x100 + bufWhdr[14] * 0x10000 + bufWhdr[15] * 0x10000);
whdr.align = (uint)(bufWhdr[16] + bufWhdr[17] * 0x100);
whdr.bps = (uint)(bufWhdr[18] + bufWhdr[19] * 0x100);
whdr.size = (uint)(bufWhdr[20] + bufWhdr[21] * 0x100);
byte[] subchunkname = new byte[4];
fsize = 4 + whdr.chunksize;
do
{
filePtr += (int)fsize;
for (int ind = 0; ind < 4; ind++)
{
subchunkname[ind] = buf[filePtr++];
}
for (int ind = 0; ind < 4; ind++)
{
bufWhdr[ind] = buf[filePtr++];
}
fsize = (uint)(bufWhdr[0] + bufWhdr[1] * 0x100 + bufWhdr[2] * 0x10000 + bufWhdr[3] * 0x10000);
} while ('d' != subchunkname[0] && 'a' != subchunkname[1] && 't' != subchunkname[2] && 'a' != subchunkname[3]);
fsize /= 2;
if (fsize >= 0x100000 || whdr.tag != 1 || whdr.nch != 1)
{
break;
}
fsize = (uint)Math.Max(fsize, (1 << 31) / 1024);
rhythm[i].sample = null;
rhythm[i].sample = new int[fsize];
if (rhythm[i].sample == null)
{
break;
}
byte[] bufSample = new byte[fsize * 2];
for (int ind = 0; ind < (fsize * 2); ind++)
{
bufSample[ind] = buf[filePtr++];
}
for (int si = 0; si < fsize; si++)
{
rhythm[i].sample[si] = (short)(bufSample[si * 2] + bufSample[si * 2 + 1] * 0x100);
}
rhythm[i].rate = whdr.rate;
rhythm[i].step = rhythm[i].rate * 1024 / rate;
rhythm[i].pos = rhythm[i].size = fsize * 1024;
}
if (i != 6)
{
for (i = 0; i < 6; i++)
{
rhythm[i].sample = null;
}
return(false);
}
return(true);
}
