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Don't use a double when calculating the HRTF coefficients

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This commit is contained in:
Chris Robinson 2011-10-02 22:05:03 -07:00
parent 5a1959f0cf
commit e1cbf06653
1 changed files with 6 additions and 6 deletions
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12
Alc/hrtf.c
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@ -161,15 +161,15 @@ void GetLerpedHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azi
// coefficients if gain is too low.
if(gain > 0.0001f)
{
ALdouble scale = gain * (1.0/32767.0);
gain *= 1.0f/32767.0f;
for(i = 0;i < HRIR_LENGTH;i++)
{
coeffs[i][0] = lerp(lerp(Hrtf->coeffs[lidx[0]][i], Hrtf->coeffs[lidx[1]][i], mu[0]),
lerp(Hrtf->coeffs[lidx[2]][i], Hrtf->coeffs[lidx[3]][i], mu[1]),
mu[2]) * scale;
mu[2]) * gain;
coeffs[i][1] = lerp(lerp(Hrtf->coeffs[ridx[0]][i], Hrtf->coeffs[ridx[1]][i], mu[0]),
lerp(Hrtf->coeffs[ridx[2]][i], Hrtf->coeffs[ridx[3]][i], mu[1]),
mu[2]) * scale;
mu[2]) * gain;
}
}
else
@ -241,7 +241,7 @@ ALuint GetMovingHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat a
// coefficients.
if(gain > 0.0001f)
{
ALdouble scale = gain * (1.0/32767.0);
gain *= 1.0f/32767.0f;
for(i = 0;i < HRIR_LENGTH;i++)
{
left = coeffs[i][0] - (coeffStep[i][0] * counter);
@ -249,10 +249,10 @@ ALuint GetMovingHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat a
coeffs[i][0] = lerp(lerp(Hrtf->coeffs[lidx[0]][i], Hrtf->coeffs[lidx[1]][i], mu[0]),
lerp(Hrtf->coeffs[lidx[2]][i], Hrtf->coeffs[lidx[3]][i], mu[1]),
mu[2]) * scale;
mu[2]) * gain;
coeffs[i][1] = lerp(lerp(Hrtf->coeffs[ridx[0]][i], Hrtf->coeffs[ridx[1]][i], mu[0]),
lerp(Hrtf->coeffs[ridx[2]][i], Hrtf->coeffs[ridx[3]][i], mu[1]),
mu[2]) * scale;
mu[2]) * gain;
coeffStep[i][0] = step * (coeffs[i][0] - left);
coeffStep[i][1] = step * (coeffs[i][1] - right);