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-rw-r--r--src/pulsecore/sconv-s16le.c440
1 files changed, 397 insertions, 43 deletions
diff --git a/src/pulsecore/sconv-s16le.c b/src/pulsecore/sconv-s16le.c
index d8b93cbd..138e4185 100644
--- a/src/pulsecore/sconv-s16le.c
+++ b/src/pulsecore/sconv-s16le.c
@@ -1,18 +1,18 @@
-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
@@ -23,24 +23,51 @@
#include <config.h>
#endif
-#include <assert.h>
-#include <inttypes.h>
+/* Despite the name of this file we implement S32 and S24 handling here, too. */
-#include <liboil/liboilfuncs.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <math.h>
#include <pulsecore/sconv.h>
-#include <pulsecore/log.h>
-
-#include "endianmacros.h"
+#include <pulsecore/macro.h>
+#include <pulsecore/endianmacros.h>
#include "sconv-s16le.h"
#ifndef INT16_FROM
-#define INT16_FROM INT16_FROM_LE
+#define INT16_FROM PA_INT16_FROM_LE
+#endif
+#ifndef UINT16_FROM
+#define UINT16_FROM PA_UINT16_FROM_LE
#endif
#ifndef INT16_TO
-#define INT16_TO INT16_TO_LE
+#define INT16_TO PA_INT16_TO_LE
+#endif
+#ifndef UINT16_TO
+#define UINT16_TO PA_UINT16_TO_LE
+#endif
+
+#ifndef INT32_FROM
+#define INT32_FROM PA_INT32_FROM_LE
+#endif
+#ifndef UINT32_FROM
+#define UINT32_FROM PA_UINT32_FROM_LE
+#endif
+
+#ifndef INT32_TO
+#define INT32_TO PA_INT32_TO_LE
+#endif
+#ifndef UINT32_TO
+#define UINT32_TO PA_UINT32_TO_LE
+#endif
+
+#ifndef READ24
+#define READ24 PA_READ24LE
+#endif
+#ifndef WRITE24
+#define WRITE24 PA_WRITE24LE
#endif
#ifndef SWAP_WORDS
@@ -51,53 +78,380 @@
#endif
#endif
-void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, float *b) {
- const int16_t *ca = a;
-
- assert(a);
- assert(b);
+void pa_sconv_s16le_to_float32ne(unsigned n, const int16_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
#if SWAP_WORDS == 1
-
for (; n > 0; n--) {
- int16_t s = *(ca++);
- *(b++) = ((float) INT16_FROM(s))/0x7FFF;
+ 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, ca, n, &add, &factor);
+ for (; n > 0; n--)
+ *(b++) = ((float) (*(a++)))/(float) 0x7FFF;
+#endif
}
+
+void pa_sconv_s32le_to_float32ne(unsigned n, const int32_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+#if SWAP_WORDS == 1
+ for (; n > 0; n--) {
+ int32_t s = *(a++);
+ *(b++) = (float) (((double) INT32_FROM(s))/0x7FFFFFFF);
+ }
+#else
+ for (; n > 0; n--)
+ *(b++) = (float) (((double) (*(a++)))/0x7FFFFFFF);
#endif
}
-void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b) {
- int16_t *cb = b;
-
- assert(a);
- assert(b);
+void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
#if SWAP_WORDS == 1
-
for (; n > 0; n--) {
int16_t s;
float v = *(a++);
- if (v > 1)
- v = 1;
-
- if (v < -1)
- v = -1;
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.f);
+ s = (int16_t) lrintf(v * 0x7FFF);
+ *(b++) = INT16_TO(s);
+ }
+#else
+ for (; n > 0; n--) {
+ float v = *(a++);
- s = (int16_t) (v * 0x7FFF);
- *(cb++) = INT16_TO(s);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.f);
+ *(b++) = (int16_t) lrintf(v * 0x7FFF);
}
+#endif
+}
+
+void pa_sconv_s32le_from_float32ne(unsigned n, const float *a, int32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+#if SWAP_WORDS == 1
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *(a++);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
+ *(b++) = INT32_TO(s);
+ }
#else
-{
- static const double add = 0, factor = 0x7FFF;
- oil_scaleconv_s16_f32(cb, a, 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
}
+
+void pa_sconv_s16le_to_float32re(unsigned n, const int16_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int16_t s = *(a++);
+ float k = ((float) INT16_FROM(s))/0x7FFF;
+ k = PA_FLOAT32_SWAP(k);
+ *(b++) = k;
+ }
+}
+
+void pa_sconv_s32le_to_float32re(unsigned n, const int32_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = *(a++);
+ float k = (float) (((double) INT32_FROM(s))/0x7FFFFFFF);
+ k = PA_FLOAT32_SWAP(k);
+ *(b++) = k;
+ }
+}
+
+void pa_sconv_s16le_from_float32re(unsigned n, const float *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int16_t s;
+ float v = *(a++);
+ v = PA_FLOAT32_SWAP(v);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int16_t) lrintf(v * 0x7FFF);
+ *(b++) = INT16_TO(s);
+ }
+}
+
+void pa_sconv_s32le_from_float32re(unsigned n, const float *a, int32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *(a++);
+ v = PA_FLOAT32_SWAP(v);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * 0x7FFFFFFF);
+ *(b++) = INT32_TO(s);
+ }
+}
+
+void pa_sconv_s32le_to_s16ne(unsigned n, const int32_t*a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ *b = (int16_t) (INT32_FROM(*a) >> 16);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s32le_to_s16re(unsigned n, const int32_t*a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int16_t s = (int16_t) (INT32_FROM(*a) >> 16);
+ *b = PA_INT16_SWAP(s);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s32le_from_s16ne(unsigned n, const int16_t *a, int32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ *b = INT32_TO(((int32_t) *a) << 16);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s32le_from_s16re(unsigned n, const int16_t *a, int32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = ((int32_t) PA_INT16_SWAP(*a)) << 16;
+ *b = INT32_TO(s);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24le_to_s16ne(unsigned n, const uint8_t *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ *b = (int16_t) (READ24(a) >> 8);
+ a += 3;
+ b++;
+ }
+}
+
+void pa_sconv_s24le_from_s16ne(unsigned n, const int16_t *a, uint8_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ WRITE24(b, ((uint32_t) *a) << 8);
+ a++;
+ b += 3;
+ }
+}
+
+void pa_sconv_s24le_to_s16re(unsigned n, const uint8_t *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int16_t s = (int16_t) (READ24(a) >> 8);
+ *b = PA_INT16_SWAP(s);
+ a += 3;
+ b++;
+ }
+}
+
+void pa_sconv_s24le_from_s16re(unsigned n, const int16_t *a, uint8_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ uint32_t s = ((uint32_t) PA_INT16_SWAP(*a)) << 8;
+ WRITE24(b, s);
+ a++;
+ b += 3;
+ }
+}
+
+void pa_sconv_s24le_to_float32ne(unsigned n, const uint8_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = READ24(a) << 8;
+ *b = ((float) s) / 0x7FFFFFFF;
+ a += 3;
+ b ++;
+ }
+}
+
+void pa_sconv_s24le_from_float32ne(unsigned n, const float *a, uint8_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *a;
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
+ WRITE24(b, ((uint32_t) s) >> 8);
+ a++;
+ b+=3;
+ }
+}
+
+void pa_sconv_s24le_to_float32re(unsigned n, const uint8_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = READ24(a) << 8;
+ float k = ((float) s) / 0x7FFFFFFF;
+ *b = PA_FLOAT32_SWAP(k);
+ a += 3;
+ b ++;
+ }
+}
+
+void pa_sconv_s24le_from_float32re(unsigned n, const float *a, uint8_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *a;
+ v = PA_FLOAT32_SWAP(v);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
+ WRITE24(b, ((uint32_t) s) >> 8);
+ a++;
+ b+=3;
+ }
+}
+
+void pa_sconv_s24_32le_to_s16ne(unsigned n, const uint32_t *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ *b = (int16_t) (((int32_t) (UINT32_FROM(*a) << 8)) >> 16);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24_32le_to_s16re(unsigned n, const uint32_t *a, int16_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int16_t s = (int16_t) ((int32_t) (UINT32_FROM(*a) << 8) >> 16);
+ *b = PA_INT16_SWAP(s);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24_32le_from_s16ne(unsigned n, const int16_t *a, uint32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ *b = UINT32_TO(((uint32_t) ((int32_t) *a << 16)) >> 8);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24_32le_from_s16re(unsigned n, const int16_t *a, uint32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ uint32_t s = ((uint32_t) ((int32_t) PA_INT16_SWAP(*a) << 16)) >> 8;
+ *b = UINT32_TO(s);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24_32le_to_float32ne(unsigned n, const uint32_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = (int32_t) (UINT32_FROM(*a) << 8);
+ *b = (float) s / (float) 0x7FFFFFFF;
+ a ++;
+ b ++;
+ }
+}
+
+void pa_sconv_s24_32le_to_float32re(unsigned n, const uint32_t *a, float *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s = (int32_t) (UINT32_FROM(*a) << 8);
+ float k = (float) s / (float) 0x7FFFFFFF;
+ *b = PA_FLOAT32_SWAP(k);
+ a ++;
+ b ++;
+ }
+}
+
+void pa_sconv_s24_32le_from_float32ne(unsigned n, const float *a, uint32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *a;
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
+ *b = UINT32_TO(((uint32_t) s) >> 8);
+ a++;
+ b++;
+ }
+}
+
+void pa_sconv_s24_32le_from_float32re(unsigned n, const float *a, uint32_t *b) {
+ pa_assert(a);
+ pa_assert(b);
+
+ for (; n > 0; n--) {
+ int32_t s;
+ float v = *a;
+ v = PA_FLOAT32_SWAP(v);
+ v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
+ s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
+ *b = UINT32_TO(((uint32_t) s) >> 8);
+ a++;
+ b++;
+ }
+}
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