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Memalign audio buffers to 64 bytes

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This is the most common cache line size, helps with performance.
Also fixes issues with platforms like PSP that wrongly assume that
malloc returns aligned buffers (to 16bytes). This recently broke the PSP
builds.
This commit is contained in:
David Guillen Fandos 2021-02-10 21:35:04 +01:00
parent 9c16163933
commit 9313b10467
2 changed files with 18 additions and 16 deletions
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32
retroarch.c
View File

@ -69,6 +69,7 @@
#include <dynamic/dylib.h>
#include <file/config_file.h>
#include <lists/string_list.h>
#include <memalign.h>
#include <retro_math.h>
#include <retro_timers.h>
#include <encodings/utf.h>
@ -27707,14 +27708,18 @@ static bool audio_driver_deinit_internal(struct rarch_state *p_rarch)
}
if (p_rarch->audio_driver_output_samples_conv_buf)
free(p_rarch->audio_driver_output_samples_conv_buf);
memalign_free(p_rarch->audio_driver_output_samples_conv_buf);
p_rarch->audio_driver_output_samples_conv_buf = NULL;
if (p_rarch->audio_driver_input_data)
memalign_free(p_rarch->audio_driver_input_data);
p_rarch->audio_driver_input_data = NULL;
p_rarch->audio_driver_data_ptr = 0;
#ifdef HAVE_REWIND
if (p_rarch->audio_driver_rewind_buf)
free(p_rarch->audio_driver_rewind_buf);
memalign_free(p_rarch->audio_driver_rewind_buf);
p_rarch->audio_driver_rewind_buf = NULL;
p_rarch->audio_driver_rewind_size = 0;
@ -27728,15 +27733,8 @@ static bool audio_driver_deinit_internal(struct rarch_state *p_rarch)
audio_driver_deinit_resampler(p_rarch);
{
unsigned i;
size_t max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2;
for (i = 0; i < max_bufsamples; i++)
p_rarch->audio_driver_input_data[i] = 0.0f;
}
if (p_rarch->audio_driver_output_samples_buf)
free(p_rarch->audio_driver_output_samples_buf);
memalign_free(p_rarch->audio_driver_output_samples_buf);
p_rarch->audio_driver_output_samples_buf = NULL;
#ifdef HAVE_DSP_FILTER
@ -27832,18 +27830,22 @@ static bool audio_driver_init_internal(
#endif
/* Accomodate rewind since at some point we might have two full buffers. */
size_t outsamples_max = AUDIO_CHUNK_SIZE_NONBLOCKING * 2 * AUDIO_MAX_RATIO * slowmotion_ratio;
int16_t *conv_buf = (int16_t*)malloc(outsamples_max
* sizeof(int16_t));
int16_t *conv_buf = (int16_t*)memalign_alloc(64, outsamples_max * sizeof(int16_t));
float *audio_buf = (float*)memalign_alloc(64, AUDIO_CHUNK_SIZE_NONBLOCKING * 2 * sizeof(float));
convert_s16_to_float_init_simd();
convert_float_to_s16_init_simd();
/* Used for recording even if audio isn't enabled. */
retro_assert(conv_buf != NULL);
retro_assert(audio_buf != NULL);
if (!conv_buf)
if (!conv_buf || !audio_buf)
goto error;
memset(audio_buf, 0, AUDIO_CHUNK_SIZE_NONBLOCKING * 2 * sizeof(float));
p_rarch->audio_driver_input_data = audio_buf;
p_rarch->audio_driver_output_samples_conv_buf = conv_buf;
p_rarch->audio_driver_chunk_block_size = AUDIO_CHUNK_SIZE_BLOCKING;
p_rarch->audio_driver_chunk_nonblock_size = AUDIO_CHUNK_SIZE_NONBLOCKING;
@ -27852,7 +27854,7 @@ static bool audio_driver_init_internal(
#ifdef HAVE_REWIND
/* Needs to be able to hold full content of a full max_bufsamples
* in addition to its own. */
rewind_buf = (int16_t*)malloc(max_bufsamples * sizeof(int16_t));
rewind_buf = (int16_t*)memalign_alloc(64, max_bufsamples * sizeof(int16_t));
retro_assert(rewind_buf != NULL);
if (!rewind_buf)
@ -27964,7 +27966,7 @@ static bool audio_driver_init_internal(
retro_assert(settings->uints.audio_out_rate <
p_rarch->audio_driver_input * AUDIO_MAX_RATIO);
samples_buf = (float*)malloc(outsamples_max * sizeof(float));
samples_buf = (float*)memalign_alloc(64, outsamples_max * sizeof(float));
retro_assert(samples_buf != NULL);

2
retroarch_data.h
View File

@ -2070,7 +2070,7 @@ struct rarch_state
unsigned perf_ptr_rarch;
unsigned perf_ptr_libretro;
float audio_driver_input_data[AUDIO_CHUNK_SIZE_NONBLOCKING * 2];
float *audio_driver_input_data;
float video_driver_core_hz;
float video_driver_aspect_ratio;