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fmt-ops: small optimizations

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This commit is contained in:
Wim Taymans 2019-01-07 13:49:52 +01:00
parent 3cfd1e6cf1
commit 2c4bffec74
1 changed files with 14 additions and 42 deletions
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56
spa/plugins/audioconvert/fmt-ops.c
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@ -50,16 +50,12 @@
static inline int32_t read_s24(const void *src)
{
union {
int8_t v[4];
int32_t value;
} d;
const int8_t *s = src;
#if __BYTE_ORDER == __LITTLE_ENDIAN
memcpy(&d.v[1], src, 3);
return (((int32_t)s[2] << 16) | ((uint32_t)(uint8_t)s[1] << 8) | (uint32_t)(uint8_t)s[0]);
#else
memcpy(&d.v[0], src, 3);
return (((int32_t)s[0] << 16) | ((uint32_t)(uint8_t)s[1] << 8) | (uint32_t)(uint8_t)s[2]);
#endif
return d.value >> 8;
}
#define READ24(s) read_s24(s)
@ -314,13 +310,7 @@ conv_s24_32d_to_f32(void *data, int n_dst, void *dst[n_dst], int n_src, const vo
}
}
#define F32_TO_U8(v) \
({ \
typeof(v) _v = (v); \
_v < -1.0f ? U8_MIN : \
_v >= 1.0f ? U8_MAX : \
(_v * U8_SCALE) + U8_OFFS; \
})
#define F32_TO_U8(v) ((SPA_CLAMP(v, -1.0f, 1.0f) * U8_SCALE) + U8_OFFS)
static void
conv_f32_to_u8(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
@ -329,7 +319,7 @@ conv_f32_to_u8(void *data, int n_dst, void *dst[n_dst], int n_src, const void *s
for (i = 0; i < n_src; i++) {
const float *s = src[i];
int8_t *d = dst[i];
uint8_t *d = dst[i];
for (j = 0; j < n_samples; j++)
d[j] = F32_TO_U8(s[j]);
@ -340,7 +330,7 @@ static void
conv_f32_to_u8d(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
{
const float *s = src[0];
int8_t **d = (int8_t **) dst;
uint8_t **d = (uint8_t **) dst;
int i, j;
for (j = 0; j < n_samples; j++) {
@ -353,7 +343,7 @@ static void
conv_f32d_to_u8(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
{
const float **s = (const float **) src;
int8_t *d = dst[0];
uint8_t *d = dst[0];
int i, j;
for (j = 0; j < n_samples; j++) {
@ -362,13 +352,7 @@ conv_f32d_to_u8(void *data, int n_dst, void *dst[n_dst], int n_src, const void *
}
}
#define F32_TO_S16(v) \
({ \
typeof(v) _v = (v); \
_v < -1.0f ? S16_MIN : \
_v >= 1.0f ? S16_MAX : \
_v * S16_SCALE; \
})
#define F32_TO_S16(v) (SPA_CLAMP(v, -1.0f, 1.0f) * S16_SCALE)
static void
conv_f32_to_s16(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
@ -410,13 +394,7 @@ conv_f32d_to_s16(void *data, int n_dst, void *dst[n_dst], int n_src, const void
}
}
#define F32_TO_S32(v) \
({ \
typeof(v) _v = (v); \
_v < -1.0f ? S32_MIN : \
_v >= 1.0f ? S32_MAX : \
_v * S32_SCALE; \
})
#define F32_TO_S32(v) (SPA_CLAMP(v, -1.0f, 1.0f) * S32_SCALE)
static void
conv_f32_to_s32(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
@ -459,17 +437,11 @@ conv_f32d_to_s32(void *data, int n_dst, void *dst[n_dst], int n_src, const void
}
#define F32_TO_S24(v) \
({ \
typeof(v) _v = (v); \
_v < -1.0f ? S24_MIN : \
_v >= 1.0f ? S24_MAX : \
(uint32_t) (_v * S24_SCALE); \
})
#define F32_TO_S24(v) (SPA_CLAMP(v, -1.0f, 1.0f) * S24_SCALE)
#define WRITE24(d,v) \
({ \
typeof(v) _v = (v); \
int32_t _v = (v); \
d[0] = (uint8_t) (_v >> 16); \
d[1] = (uint8_t) (_v >> 8); \
d[2] = (uint8_t) _v; \
@ -482,7 +454,7 @@ conv_f32_to_s24(void *data, int n_dst, void *dst[n_dst], int n_src, const void *
for (i = 0; i < n_src; i++) {
const float *s = src[i];
int8_t *d = dst[i];
uint8_t *d = dst[i];
for (j = 0; j < n_samples; j++)
WRITE24(d, F32_TO_S24(s[j]));
@ -494,7 +466,7 @@ static void
conv_f32_to_s24d(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
{
const float *s = src[0];
int8_t **d = (int8_t **) dst;
uint8_t **d = (uint8_t **) dst;
int i, j;
for (j = 0; j < n_samples; j++) {
@ -509,7 +481,7 @@ static void
conv_f32d_to_s24(void *data, int n_dst, void *dst[n_dst], int n_src, const void *src[n_src], int n_samples)
{
const float **s = (const float **) src;
int8_t *d = dst[0];
uint8_t *d = dst[0];
int i, j;
for (j = 0; j < n_samples; j++) {