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audioconvert: optimize dither

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Add sse2 dither optimization
This commit is contained in:
Wim Taymans 2022-06-27 14:15:01 +02:00
parent 9f55708e9d
commit b41d52cfd1
6 changed files with 160 additions and 17 deletions
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12
spa/plugins/audioconvert/dither-ops.h
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@ -29,9 +29,6 @@
#include <spa/utils/string.h>
#include <spa/param/audio/raw.h>
#define DITHER_SIZE (1<<8)
#define DITHER_MOD (DITHER_SIZE-1)
struct dither {
uint32_t intensity;
#define DITHER_METHOD_NONE 0
@ -48,8 +45,10 @@ struct dither {
const void * SPA_RESTRICT src[], uint32_t n_samples);
void (*free) (struct dither *d);
float tab[DITHER_SIZE];
int tab_idx;
uint32_t random[16];
float *dither;
uint32_t dither_size;
float scale;
};
int dither_init(struct dither *d);
@ -87,5 +86,8 @@ void dither_##name##_##arch(struct dither *d, \
#define DITHER_OPS_MAX_ALIGN 16
DEFINE_FUNCTION(f32, c);
#if defined(HAVE_SSE2)
DEFINE_FUNCTION(f32, sse2);
#endif
#undef DEFINE_FUNCTION