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Add 2-channel floating-point audio SSE path

This commit is contained in:
Jack Andersen 2016-05-22 20:21:18 -10:00
parent 9b13390447
commit 8aaaffbe67
1 changed files with 63 additions and 12 deletions
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59
lib/audiodev/AudioMatrixSSE.cpp
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@ -302,32 +302,83 @@ float* AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
{
if (m_slewFrames && m_curSlewFrame < m_slewFrames)
{
double t = m_curSlewFrame / double(m_slewFrames);
double omt = 1.0 - t;
float t = m_curSlewFrame / float(m_slewFrames);
float omt = 1.f - t;
switch (chmap.m_channelCount)
{
case 2:
{
++m_curSlewFrame;
float t2 = m_curSlewFrame / float(m_slewFrames);
float omt2 = 1.f - t2;
TVectorUnion coefs, samps;
coefs.q = _mm_add_ps(_mm_mul_ps(_mm_shuffle_ps(m_coefs.q[0], m_coefs.q[0], _MM_SHUFFLE(1, 0, 1, 0)),
_mm_set_ps(t, t, t2, t2)),
_mm_mul_ps(_mm_shuffle_ps(m_oldCoefs.q[0], m_oldCoefs.q[0], _MM_SHUFFLE(1, 0, 1, 0)),
_mm_set_ps(omt, omt, omt2, omt2)));
samps.q = _mm_loadu_ps(dataIn);
samps.q = _mm_shuffle_ps(samps.q, samps.q, _MM_SHUFFLE(1, 0, 1, 0));
__m128 pre = _mm_add_ps(_mm_loadu_ps(dataOut), _mm_mul_ps(coefs.q, samps.q));
_mm_storeu_ps(dataOut, _mm_min_ps(_mm_max_ps(pre, Min32Vec.q), Max32Vec.q));
dataOut += 4;
++s;
++dataIn;
break;
}
default:
{
for (unsigned c=0 ; c<chmap.m_channelCount ; ++c)
{
AudioChannel ch = chmap.m_channels[c];
if (ch != AudioChannel::Unknown)
{
*dataOut = ClampFlt(*dataOut + *dataIn * (m_coefs.v[int(ch)] * t + m_oldCoefs.v[int(ch)] * omt));
*dataOut = Clamp32(*dataOut + *dataIn * (m_coefs.v[int(ch)] * t + m_oldCoefs.v[int(ch)] * omt));
++dataOut;
}
}
break;
}
}
++m_curSlewFrame;
}
else
{
switch (chmap.m_channelCount)
{
case 2:
{
TVectorUnion coefs, samps;
coefs.q = _mm_shuffle_ps(m_coefs.q[0], m_coefs.q[0], _MM_SHUFFLE(1, 0, 1, 0));
samps.q = _mm_loadu_ps(dataIn);
samps.q = _mm_shuffle_ps(samps.q, samps.q, _MM_SHUFFLE(1, 0, 1, 0));
__m128 pre = _mm_add_ps(_mm_loadu_ps(dataOut), _mm_mul_ps(coefs.q, samps.q));
_mm_storeu_ps(dataOut, _mm_min_ps(_mm_max_ps(pre, Min32Vec.q), Max32Vec.q));
dataOut += 4;
++s;
++dataIn;
break;
}
default:
{
for (unsigned c=0 ; c<chmap.m_channelCount ; ++c)
{
AudioChannel ch = chmap.m_channels[c];
if (ch != AudioChannel::Unknown)
{
*dataOut = ClampFlt(*dataOut + *dataIn * m_coefs.v[int(ch)]);
*dataOut = Clamp32(*dataOut + *dataIn * m_coefs.v[int(ch)]);
++dataOut;
}
}
break;
}
}
}
}
return dataOut;