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Get rid of liboil

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Get rid of the liboil dependency and reimplement the liboil functions with an
equivalent C implementation. Note that most of these functions are deprecated in
liboil and that none of them had  any optimisations. We can further specialize
our handrolled versions for some extra speedups.
This commit is contained in:
Wim Taymans 2009-08-14 19:45:39 +02:00
parent 591baacba5
commit 25724cdd40
9 changed files with 65 additions and 96 deletions
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42
src/pulsecore/sconv-s16le.c
View file

@ -28,8 +28,6 @@
#include <inttypes.h>
#include <stdio.h>
#include <liboil/liboilfuncs.h>
#include <pulsecore/sconv.h>
#include <pulsecore/macro.h>
#include <pulsecore/log.h>
@ -86,17 +84,13 @@ void pa_sconv_s16le_to_float32ne(unsigned n, const int16_t *a, float *b) {
pa_assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
int16_t s = *(a++);
*(b++) = ((float) INT16_FROM(s))/(float) 0x7FFF;
}
#else
{
static const double add = 0, factor = 1.0/0x7FFF;
oil_scaleconv_f32_s16(b, a, (int) n, &add, &factor);
}
for (; n > 0; n--)
*(b++) = ((float) (*(a++)))/(float) 0x7FFF;
#endif
}
@ -105,17 +99,13 @@ void pa_sconv_s32le_to_float32ne(unsigned n, const int32_t *a, float *b) {
pa_assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
int32_t s = *(a++);
*(b++) = (float) (((double) INT32_FROM(s))/0x7FFFFFFF);
}
#else
{
static const double add = 0, factor = 1.0/0x7FFFFFFF;
oil_scaleconv_f32_s32(b, a, (int) n, &add, &factor);
}
for (; n > 0; n--)
*(b++) = (float) (((double) (*(a++)))/0x7FFFFFFF);
#endif
}
@ -124,7 +114,6 @@ void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, int16_t *b) {
pa_assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
int16_t s;
float v = *(a++);
@ -133,12 +122,13 @@ void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, int16_t *b) {
s = (int16_t) lrintf(v * 0x7FFF);
*(b++) = INT16_TO(s);
}
#else
{
static const double add = 0, factor = 0x7FFF;
oil_scaleconv_s16_f32(b, a, (int) n, &add, &factor);
}
for (; n > 0; n--) {
float v = *(a++);
v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.f);
*(b++) = (int16_t) lrintf(v * 0x7FFF);
}
#endif
}
@ -147,7 +137,6 @@ void pa_sconv_s32le_from_float32ne(unsigned n, const float *a, int32_t *b) {
pa_assert(b);
#if SWAP_WORDS == 1
for (; n > 0; n--) {
int32_t s;
float v = *(a++);
@ -156,12 +145,13 @@ void pa_sconv_s32le_from_float32ne(unsigned n, const float *a, int32_t *b) {
s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
*(b++) = INT32_TO(s);
}
#else
{
static const double add = 0, factor = 0x7FFFFFFF;
oil_scaleconv_s32_f32(b, a, (int) n, &add, &factor);
}
for (; n > 0; n--) {
float v = *(a++);
v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
*(b++) = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
}
#endif
}