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(Resampler) Cleanups

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This commit is contained in:
twinaphex 2021-06-22 01:14:32 +02:00
parent a30a86a09c
commit 3f00d2f041
1 changed files with 10 additions and 62 deletions
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72
libretro-common/audio/resampler/drivers/sinc_resampler.c
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@ -37,6 +37,12 @@
#ifdef __SSE__
#include <xmmintrin.h>
#ifdef _MSC_VER
#define MEMBER(v, i) ((v).m128_f32[(i)])
#else
#define MEMBER(v, i) ((v)[(i)])
#endif
#endif
#if defined(__AVX__)
@ -353,9 +359,6 @@ static void resampler_sinc_process_sse_kaiser(void *re_, struct resampler_data *
while (resamp->time < phases)
{
unsigned i;
#if 0
__m128 sum;
#endif
unsigned phase = resamp->time >> resamp->subphase_bits;
float *phase_table = resamp->phase_table + phase * taps * 2;
float *delta_table = phase_table + taps;
@ -376,34 +379,8 @@ static void resampler_sinc_process_sse_kaiser(void *re_, struct resampler_data *
sum_r = _mm_add_ps(sum_r, _mm_mul_ps(buf_r, _sinc));
}
#if 0
/* Them annoying shuffles.
* sum_l = { l3, l2, l1, l0 }
* sum_r = { r3, r2, r1, r0 }
*/
sum = _mm_add_ps(_mm_shuffle_ps(sum_l, sum_r,
_MM_SHUFFLE(1, 0, 1, 0)),
_mm_shuffle_ps(sum_l, sum_r, _MM_SHUFFLE(3, 2, 3, 2)));
/* sum = { r1, r0, l1, l0 } + { r3, r2, l3, l2 }
* sum = { R1, R0, L1, L0 }
*/
sum = _mm_add_ps(_mm_shuffle_ps(sum, sum, _MM_SHUFFLE(3, 3, 1, 1)), sum);
/* sum = {R1, R1, L1, L1 } + { R1, R0, L1, L0 }
* sum = { X, R, X, L }
*/
/* Store L */
_mm_store_ss(output++, sum);
/* movehl { X, R, X, L } == { X, R, X, R } */
_mm_store_ss(output++, _mm_movehl_ps(sum, sum));
#else
#ifdef _MSC_VER
*(output++) = _mm_cvtss_f32(sum_l) + sum_l.m128_f32[1] + sum_l.m128_f32[2] + sum_l.m128_f32[3];
*(output++) = _mm_cvtss_f32(sum_r) + sum_r.m128_f32[1] + sum_r.m128_f32[2] + sum_r.m128_f32[3];
#else
*(output++) = _mm_cvtss_f32(sum_l) + sum_l[1] + sum_l[2] + sum_l[3];
*(output++) = _mm_cvtss_f32(sum_r) + sum_r[1] + sum_r[2] + sum_r[3];
#endif
#endif
*(output++) = _mm_cvtss_f32(sum_l) + MEMBER(sum_l, 1) + MEMBER(sum_l, 2) + MEMBER(sum_l, 3);
*(output++) = _mm_cvtss_f32(sum_r) + MEMBER(sum_r, 1) + MEMBER(sum_r, 2) + MEMBER(sum_r, 3);
out_frames++;
resamp->time += ratio;
@ -451,9 +428,6 @@ static void resampler_sinc_process_sse(void *re_, struct resampler_data *data)
while (resamp->time < phases)
{
unsigned i;
#if 0
__m128 sum;
#endif
unsigned phase = resamp->time >> resamp->subphase_bits;
float *phase_table = resamp->phase_table + phase * taps;
@ -469,34 +443,8 @@ static void resampler_sinc_process_sse(void *re_, struct resampler_data *data)
sum_r = _mm_add_ps(sum_r, _mm_mul_ps(buf_r, _sinc));
}
#if 0
/* Them annoying shuffles.
* sum_l = { l3, l2, l1, l0 }
* sum_r = { r3, r2, r1, r0 }
*/
sum = _mm_add_ps(_mm_shuffle_ps(sum_l, sum_r,
_MM_SHUFFLE(1, 0, 1, 0)),
_mm_shuffle_ps(sum_l, sum_r, _MM_SHUFFLE(3, 2, 3, 2)));
/* sum = { r1, r0, l1, l0 } + { r3, r2, l3, l2 }
* sum = { R1, R0, L1, L0 }
*/
sum = _mm_add_ps(_mm_shuffle_ps(sum, sum, _MM_SHUFFLE(3, 3, 1, 1)), sum);
/* sum = {R1, R1, L1, L1 } + { R1, R0, L1, L0 }
* sum = { X, R, X, L }
*/
/* Store L */
_mm_store_ss(output++, sum);
/* movehl { X, R, X, L } == { X, R, X, R } */
_mm_store_ss(output++, _mm_movehl_ps(sum, sum));
#else
#ifdef _MSC_VER
*(output++) = _mm_cvtss_f32(sum_l) + sum_l.m128_f32[1] + sum_l.m128_f32[2] + sum_l.m128_f32[3];
*(output++) = _mm_cvtss_f32(sum_r) + sum_r.m128_f32[1] + sum_r.m128_f32[2] + sum_r.m128_f32[3];
#else
*(output++) = _mm_cvtss_f32(sum_l) + sum_l[1] + sum_l[2] + sum_l[3];
*(output++) = _mm_cvtss_f32(sum_r) + sum_r[1] + sum_r[2] + sum_r[3];
#endif
#endif
*(output++) = _mm_cvtss_f32(sum_l) + MEMBER(sum_l, 1) + MEMBER(sum_l, 2) + MEMBER(sum_l, 3);
*(output++) = _mm_cvtss_f32(sum_r) + MEMBER(sum_r, 1) + MEMBER(sum_r, 2) + MEMBER(sum_r, 3);
out_frames++;
resamp->time += ratio;