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Apply HRTF mixer coefficients with stepping using SSE

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This commit is contained in:
Chris Robinson
2012-08-15 08:19:04 -07:00
parent f4ff63e271
commit 0bca771a88
4 changed files with 68 additions and 14 deletions
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Alc/mixer_c.c
+16
View File
@@ -6,6 +6,22 @@
#include "alu.h"
static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat (*RESTRICT CoeffStep)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < HRIR_LENGTH;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
Coeffs[c][0] += CoeffStep[c][0];
Coeffs[c][1] += CoeffStep[c][1];
}
}
static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat left, ALfloat right)
Alc/mixer_inc.c
+1 -9
View File
@@ -107,15 +107,7 @@ void MERGE4(MixDirect_Hrtf_,SAMPLER,_,SUFFIX)(
Values[Offset&HRIR_MASK][1] = 0.0f;
Offset++;
for(c = 0;c < HRIR_LENGTH;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
Coeffs[c][0] += CoeffStep[c][0];
Coeffs[c][1] += CoeffStep[c][1];
}
ApplyCoeffsStep(Offset, Values, Coeffs, CoeffStep, left, right);
DryBuffer[OutPos][FrontLeft] += Values[Offset&HRIR_MASK][0];
DryBuffer[OutPos][FrontRight] += Values[Offset&HRIR_MASK][1];
Alc/mixer_neon.c
+16
View File
@@ -10,6 +10,22 @@
#include "alu.h"
static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat (*RESTRICT CoeffStep)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < HRIR_LENGTH;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
Coeffs[c][0] += CoeffStep[c][0];
Coeffs[c][1] += CoeffStep[c][1];
}
}
static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat left, ALfloat right)
Alc/mixer_sse.c
+35 -5
View File
@@ -10,18 +10,48 @@
#include "alu.h"
static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat left, ALfloat right)
static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat (*RESTRICT CoeffStep)[2],
ALfloat left, ALfloat right)
{
const __m128 lrlr = { left, right, left, right };
__m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f };
__m128 coeffs, coeffstep;
ALuint c;
for(c = 0;c < HRIR_LENGTH;c += 2)
{
const ALuint o0 = (Offset++)&HRIR_MASK;
const ALuint o1 = (Offset++)&HRIR_MASK;
__m128 coeffs = _mm_load_ps(&Coeffs[c][0]);
__m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f };
coeffs = _mm_load_ps(&Coeffs[c][0]);
vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]);
vals = _mm_loadh_pi(vals, (__m64*)&Values[o1][0]);
vals = _mm_add_ps(vals, _mm_mul_ps(coeffs, lrlr));
_mm_storel_pi((__m64*)&Values[o0][0], vals);
_mm_storeh_pi((__m64*)&Values[o1][0], vals);
coeffstep = _mm_load_ps(&CoeffStep[c][0]);
coeffs = _mm_add_ps(coeffs, coeffstep);
_mm_store_ps(&Coeffs[c][0], coeffs);
}
}
static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
ALfloat (*RESTRICT Coeffs)[2],
ALfloat left, ALfloat right)
{
const __m128 lrlr = { left, right, left, right };
__m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f };
__m128 coeffs;
ALuint c;
for(c = 0;c < HRIR_LENGTH;c += 2)
{
const ALuint o0 = (Offset++)&HRIR_MASK;
const ALuint o1 = (Offset++)&HRIR_MASK;
coeffs = _mm_load_ps(&Coeffs[c][0]);
vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]);
vals = _mm_loadh_pi(vals, (__m64*)&Values[o1][0]);