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-rw-r--r--src/pulsecore/sconv-s16le.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/src/pulsecore/sconv-s16le.c b/src/pulsecore/sconv-s16le.c
new file mode 100644
index 0000000..c503e0e
--- /dev/null
+++ b/src/pulsecore/sconv-s16le.c
@@ -0,0 +1,439 @@
+/***
+ 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 2.1 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, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* Despite the name of this file we implement S32 and S24 handling here, too. */
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <math.h>
+
+#include <pulsecore/sconv.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/endianmacros.h>
+
+#include "sconv-s16le.h"
+
+#ifndef INT16_FROM
+#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 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
+#ifdef WORDS_BIGENDIAN
+#define SWAP_WORDS 1
+#else
+#define SWAP_WORDS 0
+#endif
+#endif
+
+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 = *(a++);
+ *(b++) = INT16_FROM(s) * (1.0f / (1 << 15));
+ }
+#else
+ for (; n > 0; n--)
+ *(b++) = *(a++) * (1.0f / (1 << 15));
+#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++) = INT32_FROM(s) * (1.0f / (1U << 31));
+ }
+#else
+ for (; n > 0; n--)
+ *(b++) = *(a++) * (1.0f / (1U << 31));
+#endif
+}
+
+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++) * (1 << 15);
+
+ s = (int16_t) PA_CLAMP_UNLIKELY(lrintf(v), -0x8000, 0x7FFF);
+ *(b++) = INT16_TO(s);
+ }
+#else
+ for (; n > 0; n--) {
+ float v = *(a++) * (1 << 15);
+
+ *(b++) = (int16_t) PA_CLAMP_UNLIKELY(lrintf(v), -0x8000, 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++) * (1U << 31);
+
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrintf(v), -0x80000000LL, 0x7FFFFFFFLL);
+ *(b++) = INT32_TO(s);
+ }
+#else
+ for (; n > 0; n--) {
+ float v = *(a++) * (1U << 31);
+
+ *(b++) = (int32_t) PA_CLAMP_UNLIKELY(llrintf(v), -0x80000000LL, 0x7FFFFFFFLL);
+ }
+#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 = INT16_FROM(s) * (1.0f / (1 << 15));
+ PA_WRITE_FLOAT32RE(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 = INT32_FROM(s) * (1.0f / (1U << 31));
+ PA_WRITE_FLOAT32RE(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 = PA_READ_FLOAT32RE(a++) * (1 << 15);
+ s = (int16_t) PA_CLAMP_UNLIKELY(lrintf(v), -0x8000, 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 = PA_READ_FLOAT32RE(a++) * (1U << 31);
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrintf(v), -0x80000000LL, 0x7FFFFFFFLL);
+ *(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 = s * (1.0f / (1U << 31));
+ 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 * (1U << 31);
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrint(v), -0x80000000LL, 0x7FFFFFFFLL);
+ 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 = s * (1.0f / (1U << 31));
+ PA_WRITE_FLOAT32RE(b, 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 = PA_READ_FLOAT32RE(a) * (1U << 31);
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrint(v), -0x80000000LL, 0x7FFFFFFFLL);
+ 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 = s * (1.0f / (1U << 31));
+ 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 = s * (1.0f / (1U << 31));
+ PA_WRITE_FLOAT32RE(b, 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 * (1U << 31);
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrint(v), -0x80000000LL, 0x7FFFFFFFLL);
+ *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 = PA_READ_FLOAT32RE(a) * (1U << 31);
+ s = (int32_t) PA_CLAMP_UNLIKELY(llrint(v), -0x80000000LL, 0x7FFFFFFFLL);
+ *b = UINT32_TO(((uint32_t) s) >> 8);
+ a++;
+ b++;
+ }
+}
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