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-rw-r--r--src/pulsecore/sample-util.c316
1 files changed, 5 insertions, 311 deletions
diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c
index f8a4c70a..0bbd5192 100644
--- a/src/pulsecore/sample-util.c
+++ b/src/pulsecore/sample-util.c
@@ -687,316 +687,6 @@ size_t pa_mix(
return length;
}
-typedef struct pa_volume_funcs {
- void (*u8) (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*alaw) (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*ulaw) (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s16ne) (int16_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s16re) (int16_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*float32ne) (float *samples, float *volumes, unsigned channels, unsigned length);
- void (*float32re) (float *samples, float *volumes, unsigned channels, unsigned length);
- void (*s32ne) (int32_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s32re) (int32_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s24ne) (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s24re) (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s24_32ne) (uint32_t *samples, int32_t *volumes, unsigned channels, unsigned length);
- void (*s24_32re) (uint32_t *samples, int32_t *volumes, unsigned channels, unsigned length);
-} pa_volume_funcs;
-
-static void
-pa_volume_u8_c (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- for (channel = 0; length; length--) {
- int32_t t, hi, lo;
-
- hi = volumes[channel] >> 16;
- lo = volumes[channel] & 0xFFFF;
-
- t = (int32_t) *samples - 0x80;
- t = ((t * lo) >> 16) + (t * hi);
- t = PA_CLAMP_UNLIKELY(t, -0x80, 0x7F);
- *samples++ = (uint8_t) (t + 0x80);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_alaw_c (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- for (channel = 0; length; length--) {
- int32_t t, hi, lo;
-
- hi = volumes[channel] >> 16;
- lo = volumes[channel] & 0xFFFF;
-
- t = (int32_t) st_alaw2linear16(*samples);
- t = ((t * lo) >> 16) + (t * hi);
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *samples++ = (uint8_t) st_13linear2alaw((int16_t) t >> 3);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_ulaw_c (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- for (channel = 0; length; length--) {
- int32_t t, hi, lo;
-
- hi = volumes[channel] >> 16;
- lo = volumes[channel] & 0xFFFF;
-
- t = (int32_t) st_ulaw2linear16(*samples);
- t = ((t * lo) >> 16) + (t * hi);
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *samples++ = (uint8_t) st_14linear2ulaw((int16_t) t >> 2);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s16ne_c (int16_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (int16_t);
-
- for (channel = 0; length; length--) {
- int32_t t, hi, lo;
-
- /* Multiplying the 32bit volume factor with the 16bit
- * sample might result in an 48bit value. We want to
- * do without 64 bit integers and hence do the
- * multiplication independantly for the HI and LO part
- * of the volume. */
-
- hi = volumes[channel] >> 16;
- lo = volumes[channel] & 0xFFFF;
-
- t = (int32_t)(*samples);
- t = ((t * lo) >> 16) + (t * hi);
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *samples++ = (int16_t) t;
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s16re_c (int16_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (int16_t);
-
- for (channel = 0; length; length--) {
- int32_t t, hi, lo;
-
- hi = volumes[channel] >> 16;
- lo = volumes[channel] & 0xFFFF;
-
- t = (int32_t) PA_INT16_SWAP(*samples);
- t = ((t * lo) >> 16) + (t * hi);
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *samples++ = PA_INT16_SWAP((int16_t) t);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_float32ne_c (float *samples, float *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (float);
-
- for (channel = 0; length; length--) {
- *samples++ *= volumes[channel];
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_float32re_c (float *samples, float *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (float);
-
- for (channel = 0; length; length--) {
- float t;
-
- t = PA_FLOAT32_SWAP(*samples);
- t *= volumes[channel];
- *samples++ = PA_FLOAT32_SWAP(t);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s32ne_c (int32_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (int32_t);
-
- for (channel = 0; length; length--) {
- int64_t t;
-
- t = (int64_t)(*samples);
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- *samples++ = (int32_t) t;
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s32re_c (int32_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (int32_t);
-
- for (channel = 0; length; length--) {
- int64_t t;
-
- t = (int64_t) PA_INT32_SWAP(*samples);
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- *samples++ = PA_INT32_SWAP((int32_t) t);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s24ne_c (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
- uint8_t *e;
-
- e = samples + length;
-
- for (channel = 0; samples < e; samples += 3) {
- int64_t t;
-
- t = (int64_t)((int32_t) (PA_READ24NE(samples) << 8));
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- PA_WRITE24NE(samples, ((uint32_t) (int32_t) t) >> 8);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s24re_c (uint8_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
- uint8_t *e;
-
- e = samples + length;
-
- for (channel = 0; samples < e; samples += 3) {
- int64_t t;
-
- t = (int64_t)((int32_t) (PA_READ24RE(samples) << 8));
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- PA_WRITE24RE(samples, ((uint32_t) (int32_t) t) >> 8);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s24_32ne_c (uint32_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (uint32_t);
-
- for (channel = 0; length; length--) {
- int64_t t;
-
- t = (int64_t) ((int32_t) (*samples << 8));
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- *samples++ = ((uint32_t) ((int32_t) t)) >> 8;
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-static void
-pa_volume_s24_32re_c (uint32_t *samples, int32_t *volumes, unsigned channels, unsigned length)
-{
- unsigned channel;
-
- length /= sizeof (uint32_t);
-
- for (channel = 0; length; length--) {
- int64_t t;
-
- t = (int64_t) ((int32_t) (PA_UINT32_SWAP(*samples) << 8));
- t = (t * volumes[channel]) >> 16;
- t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
- *samples++ = PA_UINT32_SWAP(((uint32_t) ((int32_t) t)) >> 8);
-
- if (PA_UNLIKELY(++channel >= channels))
- channel = 0;
- }
-}
-
-typedef void (*pa_do_volume_func_t) (void *samples, void *volumes, unsigned channels, unsigned length);
-
-typedef struct pa_sample_func_t {
- pa_do_volume_func_t do_volume;
-} pa_sample_func_t;
-
-static pa_do_volume_func_t do_volume_table[] =
-{
- [PA_SAMPLE_U8] = (pa_do_volume_func_t) pa_volume_u8_c,
- [PA_SAMPLE_ALAW] = (pa_do_volume_func_t) pa_volume_alaw_c,
- [PA_SAMPLE_ULAW] = (pa_do_volume_func_t) pa_volume_ulaw_c,
- [PA_SAMPLE_S16NE] = (pa_do_volume_func_t) pa_volume_s16ne_c,
- [PA_SAMPLE_S16RE] = (pa_do_volume_func_t) pa_volume_s16re_c,
- [PA_SAMPLE_FLOAT32NE] = (pa_do_volume_func_t) pa_volume_float32ne_c,
- [PA_SAMPLE_FLOAT32RE] = (pa_do_volume_func_t) pa_volume_float32re_c,
- [PA_SAMPLE_S32NE] = (pa_do_volume_func_t) pa_volume_s32ne_c,
- [PA_SAMPLE_S32RE] = (pa_do_volume_func_t) pa_volume_s32re_c,
- [PA_SAMPLE_S24NE] = (pa_do_volume_func_t) pa_volume_s24ne_c,
- [PA_SAMPLE_S24RE] = (pa_do_volume_func_t) pa_volume_s24re_c,
- [PA_SAMPLE_S24_32NE] = (pa_do_volume_func_t) pa_volume_s24_32ne_c,
- [PA_SAMPLE_S24_32RE] = (pa_do_volume_func_t) pa_volume_s24_32re_c
-};
-
typedef union {
float f;
uint32_t i;
@@ -1027,6 +717,7 @@ void pa_volume_memchunk(
void *ptr;
volume_val linear[PA_CHANNELS_MAX];
+ pa_do_volume_func_t do_volume;
pa_assert(c);
pa_assert(spec);
@@ -1051,8 +742,11 @@ void pa_volume_memchunk(
ptr = (uint8_t*) pa_memblock_acquire(c->memblock) + c->index;
+ do_volume = pa_get_volume_func (spec->format);
+ pa_assert(do_volume);
+
calc_volume_table[spec->format] ((void *)linear, volume);
- do_volume_table[spec->format] (ptr, (void *)linear, spec->channels, c->length);
+ do_volume (ptr, (void *)linear, spec->channels, c->length);
pa_memblock_release(c->memblock);
}
generated by cgit (git 2.34.1) at 2025-10-31 21:21:20 +0000