public void RawSamples(int samples, int rate, int width, int channels, ByteBuffer data)
{
int format;
if (channels == 2)
{
format = (width == 2) ? AL10.AL_FORMAT_STEREO16 : AL10.AL_FORMAT_STEREO8;
}
else
{
format = (width == 2) ? AL10.AL_FORMAT_MONO16 : AL10.AL_FORMAT_MONO8;
}
if (format == AL10.AL_FORMAT_MONO8)
{
Int16Buffer sampleData = streamBuffer;
int value;
for (int i = 0; i < samples; i++)
{
value = (data.Get(i) & 0xFF) - 128;
sampleData.Put(i, (short)value);
}
format = AL10.AL_FORMAT_MONO16;
width = 2;
data = sfxDataBuffer.Slice();
}
Channel.UpdateStream(data, samples * channels * width, format, rate);
}
public void RawSamples(Int32 samples, Int32 rate, Int32 width, Int32 channels, ByteBuffer data)
{
ALFormat format;
if (channels == 2)
{
format = (width == 2) ? ALFormat.Stereo16 : ALFormat.Stereo8;
}
else
{
format = (width == 2) ? ALFormat.Mono16 : ALFormat.Mono8;
}
if (format == ALFormat.Mono8)
{
Int16Buffer sampleData = streamBuffer;
Int32 value;
for (var i = 0; i < samples; i++)
{
value = (data.Get(i) & 0xFF) - 128;
sampleData.Put(i, ( Int16 )value);
}
format = ALFormat.Mono16;
width = 2;
data = sfxDataBuffer.Slice();
}
Channel.UpdateStream(data, samples * channels * width, format, rate);
}
static void PaintChannelFrom16(channel_t ch, sfxcache_t sc, Int32 count, Int32 offset)
{
Int32 data;
Int32 left, right;
Int32 leftvol, rightvol;
Int32 sfx;
Int32 i;
portable_samplepair_t samp;
leftvol = ch.leftvol * snd_vol;
rightvol = ch.rightvol * snd_vol;
ByteBuffer bb = ByteBuffer.Wrap(sc.data);
bb.Order = ByteOrder.LittleEndian;
sb = bb.AsInt16Buffer();
sfx = ch.pos;
for (i = 0; i < count; i++, offset++)
{
left = paInt32Buffer.Get(offset * 2);
right = paInt32Buffer.Get(offset * 2 + 1);
data = sb.Get(sfx + i);
left += (data * leftvol) >> 8;
right += (data * rightvol) >> 8;
paInt32Buffer.Put(offset * 2, left);
paInt32Buffer.Put(offset * 2 + 1, right);
}
ch.pos += count;
}
static void TransferStereo16(ByteBuffer pbuf, Int32 endtime)
{
Int32 lpos;
Int32 lpaintedtime;
snd_p = paInt32Buffer;
lpaintedtime = paintedtime;
while (lpaintedtime < endtime)
{
lpos = lpaintedtime & ((dma.samples >> 1) - 1);
snd_out = pbuf.AsInt16Buffer();
snd_out.Position = lpos << 1;
snd_out = snd_out.Slice();
snd_linear_count = (dma.samples >> 1) - lpos;
if (lpaintedtime + snd_linear_count > endtime)
{
snd_linear_count = endtime - lpaintedtime;
}
snd_linear_count <<= 1;
WriteLinearBlastStereo16();
paInt32Buffer.Position = snd_linear_count;
snd_p = paInt32Buffer.Slice();
lpaintedtime += (snd_linear_count >> 1);
}
}
public override void SetUp()
{
base.SetUp();
buf = Int16Buffer.Allocate(BUFFER_LENGTH);
base.loadTestData1(buf);
buf = buf.AsReadOnlyBuffer();
baseBuf = buf;
}
public override void SetUp()
{
base.SetUp();
buf = Int16Buffer.Wrap(new short[BUFFER_LENGTH]);
base.loadTestData1(buf);
buf = buf.AsReadOnlyBuffer();
baseBuf = buf;
}
public StreamingBuffer(WaveFormat waveformat)
{
_SamplingRate = waveformat.SampleRate;
_Channels = waveformat.Channels;
bufwaveprovider16 = new BufferedWaveProvider(new WaveFormat(_SamplingRate, 16, _Channels));
volume = new VolumeWaveProvider16(bufwaveprovider16);
volume.Volume = 0.1F;
ChannelBuffers = new Int16Buffer[2];
ChannelBuffers[0] = new Int16Buffer();
ChannelBuffers[1] = new Int16Buffer();
}
public StreamingBuffer(WaveFormat waveformat)
{
_SamplingRate = waveformat.SampleRate;
_Channels = waveformat.Channels;
bufwaveprovider16 = new BufferedWaveProvider(new WaveFormat(_SamplingRate, 16, _Channels));
volume = new VolumeWaveProvider16(bufwaveprovider16);
//volume.Volume = 0.1F;
ChannelBuffers = new Int16Buffer[2];
ChannelBuffers[0] = new Int16Buffer();
ChannelBuffers[1] = new Int16Buffer();
_streambuffermsec = 500;//小さいほど良いが正常動作する限界値をセットしたい。この値を下回るタイミングでbufwaveproviderにバッファを追加していく
}
public override Int16Buffer Put(Int16Buffer buffer)
{
throw new ReadOnlyBufferException();
}
static void TransferPaInt32Buffer(Int32 endtime)
{
Int32 out_idx;
Int32 count;
Int32 out_mask;
Int32 p;
Int32 step;
Int32 val;
ByteBuffer pbuf = ByteBuffer.Wrap(dma.buffer);
pbuf.Order = ByteOrder.LittleEndian;
if (SND_DMA.s_testsound.value != 0F)
{
Int32 i;
Int32 count2;
count2 = (endtime - paintedtime) * 2;
Int32 v;
for (i = 0; i < count2; i += 2)
{
v = ( Int32 )(Math.Sin((paintedtime + i) * 0.1) * 20000 * 256);
paInt32Buffer.Put(i, v);
paInt32Buffer.Put(i + 1, v);
}
}
if (dma.samplebits == 16 && dma.channels == 2)
{
TransferStereo16(pbuf, endtime);
}
else
{
p = 0;
count = (endtime - paintedtime) * dma.channels;
out_mask = dma.samples - 1;
out_idx = paintedtime * dma.channels & out_mask;
step = 3 - dma.channels;
if (dma.samplebits == 16)
{
Int16Buffer out_renamed = pbuf.AsInt16Buffer();
while (count-- > 0)
{
val = paInt32Buffer.Get(p) >> 8;
p += step;
if (val > 0x7fff)
{
val = 0x7fff;
}
else if (val < unchecked (( Int16 )0x8000))
{
val = unchecked (( Int16 )0x8000);
}
out_renamed.Put(out_idx, ( Int16 )val);
out_idx = (out_idx + 1) & out_mask;
}
}
else if (dma.samplebits == 8)
{
ByteBuffer out_renamed = pbuf;
while (count-- > 0)
{
val = paInt32Buffer.Get(p) >> 8;
p += step;
if (val > 0x7fff)
{
val = 0x7fff;
}
else if (val < unchecked (( Int16 )0x8000))
{
val = unchecked (( Int16 )0x8000);
}
out_renamed.Put(out_idx, ( Byte )(val >> 8));
out_idx = (out_idx + 1) & out_mask;
}
}
}
}
