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Improve alist_resample 

New algorithm is faster and more accurate
This commit is contained in:
LegendOfDragoon 2016-05-25 17:10:21 -07:00
parent a00011b0f3
commit b187ad9b81
1 changed files with 5 additions and 5 deletions
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10
Source/Android/PluginRSP/alist.cpp
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@ -633,11 +633,11 @@ void alist_resample( CHle * hle, bool init, bool flag2, uint16_t dmemo, uint16_t
{ {
const int16_t* lut = RESAMPLE_LUT + ((pitch_accu & 0xfc00) >> 8); const int16_t* lut = RESAMPLE_LUT + ((pitch_accu & 0xfc00) >> 8);
*sample(hle, opos++) = clamp_s16( *sample(hle, opos++) = clamp_s16( (
((*sample(hle, ipos) * lut[0]) >> 15) + (*sample(hle, ipos ) * lut[0]) +
((*sample(hle, ipos + 1) * lut[1]) >> 15) + (*sample(hle, ipos + 1) * lut[1]) +
((*sample(hle, ipos + 2) * lut[2]) >> 15) + (*sample(hle, ipos + 2) * lut[2]) +
((*sample(hle, ipos + 3) * lut[3]) >> 15)); (*sample(hle, ipos + 3) * lut[3]) ) >> 15);
pitch_accu += pitch; pitch_accu += pitch;
ipos += (pitch_accu >> 16); ipos += (pitch_accu >> 16);