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Mega patch:

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* implement inner loops using liboil
* drop "typeid" stuff
* add support for channel maps
* add support for seperate volumes per channel
* add support for hardware mixer settings (only module-oss implements this for now)
* fix a lot of types for _t suffix


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@463 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-01-27 16:25:31 +00:00
parent 759721cbbc
commit dd10c98241
114 changed files with 2584 additions and 1329 deletions
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64
polyp/sconv-s16le.c
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@ -26,6 +26,8 @@
#include <assert.h>
#include <inttypes.h>
#include <liboil/liboilfuncs.h>
#include "endianmacros.h"
#include "sconv.h"
#include "sconv-s16le.h"
@ -39,49 +41,61 @@
#define INT16_TO INT16_TO_LE
#endif
void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, unsigned an, float *b) {
#ifndef SWAP_WORDS
#ifdef WORDS_BIGENDIAN
#define SWAP_WORDS 1
#else
#define SWAP_WORDS 0
#endif
#endif
void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, float *b) {
const int16_t *ca = a;
assert(n && a && an && b);
assert(a);
assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
unsigned i;
float sum = 0;
for (i = 0; i < an; i++) {
int16_t s = *(ca++);
sum += ((float) INT16_FROM(s))/0x7FFF;
}
if (sum > 1)
sum = 1;
if (sum < -1)
sum = -1;
*(b++) = sum;
int16_t s = *(ca++);
*(b++) = ((float) INT16_FROM(s))/0x7FFF;
}
#else
{
static const double add = 0, factor = 1.0/0x7FFF;
oil_scaleconv_f32_s16(b, ca, n, &add, &factor);
}
#endif
}
void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b, unsigned bn) {
void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b) {
int16_t *cb = b;
/* pa_log("%u %p %p %u\n", n, a, b, bn); */
assert(n && a && b && bn);
assert(a);
assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
unsigned i;
int16_t s;
float v = *(a++);
if (v > 1)
v = 1;
if (v < -1)
v = -1;
s = (int16_t) (v * 0x7FFF);
s = INT16_TO(s);
for (i = 0; i < bn; i++)
*(cb++) = s;
*(cb++) = INT16_TO(s);
}
#else
{
static const double add = 0, factor = 0x7FFF;
oil_scaleconv_s16_f32(cb, a, n, &add, &factor);
}
#endif
}