FreeBSD kernel sound device code
intpcm.h
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1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2008-2009 Ariff Abdullah <ariff@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _SND_INTPCM_H_
32#define _SND_INTPCM_H_
33
34typedef intpcm_t intpcm_read_t(uint8_t *);
35typedef void intpcm_write_t(uint8_t *, intpcm_t);
36
37extern intpcm_read_t *feeder_format_read_op(uint32_t);
38extern intpcm_write_t *feeder_format_write_op(uint32_t);
39
40#define INTPCM_DECLARE_OP_WRITE(SIGN, BIT, ENDIAN, SHIFT) \
41static __inline void \
42intpcm_write_##SIGN##BIT##ENDIAN(uint8_t *dst, intpcm_t v) \
43{ \
44 \
45 _PCM_WRITE_##SIGN##BIT##_##ENDIAN(dst, v >> SHIFT); \
46}
47
48#define INTPCM_DECLARE_OP_8(SIGN, ENDIAN) \
49static __inline intpcm_t \
50intpcm_read_##SIGN##8##ENDIAN(uint8_t *src) \
51{ \
52 \
53 return (_PCM_READ_##SIGN##8##_##ENDIAN(src) << 24); \
54} \
55INTPCM_DECLARE_OP_WRITE(SIGN, 8, ENDIAN, 24)
56
57#define INTPCM_DECLARE_OP_16(SIGN, ENDIAN) \
58static __inline intpcm_t \
59intpcm_read_##SIGN##16##ENDIAN(uint8_t *src) \
60{ \
61 \
62 return (_PCM_READ_##SIGN##16##_##ENDIAN(src) << 16); \
63} \
64INTPCM_DECLARE_OP_WRITE(SIGN, 16, ENDIAN, 16)
65
66#define INTPCM_DECLARE_OP_24(SIGN, ENDIAN) \
67static __inline intpcm_t \
68intpcm_read_##SIGN##24##ENDIAN(uint8_t *src) \
69{ \
70 \
71 return (_PCM_READ_##SIGN##24##_##ENDIAN(src) << 8); \
72} \
73INTPCM_DECLARE_OP_WRITE(SIGN, 24, ENDIAN, 8)
74
75#define INTPCM_DECLARE_OP_32(SIGN, ENDIAN) \
76static __inline intpcm_t \
77intpcm_read_##SIGN##32##ENDIAN(uint8_t *src) \
78{ \
79 \
80 return (_PCM_READ_##SIGN##32##_##ENDIAN(src)); \
81} \
82 \
83static __inline void \
84intpcm_write_##SIGN##32##ENDIAN(uint8_t *dst, intpcm_t v) \
85{ \
86 \
87 _PCM_WRITE_##SIGN##32##_##ENDIAN(dst, v); \
88}
89
90#define INTPCM_DECLARE(t) \
91 \
92G711_DECLARE_TABLE(t); \
93 \
94static __inline intpcm_t \
95intpcm_read_ulaw(uint8_t *src) \
96{ \
97 \
98 return (_G711_TO_INTPCM((t).ulaw_to_u8, *src) << 24); \
99} \
100 \
101static __inline intpcm_t \
102intpcm_read_alaw(uint8_t *src) \
103{ \
104 \
105 return (_G711_TO_INTPCM((t).alaw_to_u8, *src) << 24); \
106} \
107 \
108static __inline void \
109intpcm_write_ulaw(uint8_t *dst, intpcm_t v) \
110{ \
111 \
112 *dst = _INTPCM_TO_G711((t).u8_to_ulaw, v >> 24); \
113} \
114 \
115static __inline void \
116intpcm_write_alaw(uint8_t *dst, intpcm_t v) \
117{ \
118 \
119 *dst = _INTPCM_TO_G711((t).u8_to_alaw, v >> 24); \
120} \
121 \
122INTPCM_DECLARE_OP_8(S, NE) \
123INTPCM_DECLARE_OP_16(S, LE) \
124INTPCM_DECLARE_OP_16(S, BE) \
125INTPCM_DECLARE_OP_24(S, LE) \
126INTPCM_DECLARE_OP_24(S, BE) \
127INTPCM_DECLARE_OP_32(S, LE) \
128INTPCM_DECLARE_OP_32(S, BE) \
129INTPCM_DECLARE_OP_8(U, NE) \
130INTPCM_DECLARE_OP_16(U, LE) \
131INTPCM_DECLARE_OP_16(U, BE) \
132INTPCM_DECLARE_OP_24(U, LE) \
133INTPCM_DECLARE_OP_24(U, BE) \
134INTPCM_DECLARE_OP_32(U, LE) \
135INTPCM_DECLARE_OP_32(U, BE)
136
137#endif /* !_SND_INTPCM_H_ */
intpcm_read_t
intpcm_t intpcm_read_t(uint8_t *)
Definition: intpcm.h:34
feeder_format_read_op
intpcm_read_t * feeder_format_read_op(uint32_t)
Definition: feeder_format.c:279
intpcm_write_t
void intpcm_write_t(uint8_t *, intpcm_t)
Definition: intpcm.h:35
feeder_format_write_op
intpcm_write_t * feeder_format_write_op(uint32_t)
Definition: feeder_format.c:292
intpcm_t
int32_t intpcm_t
Definition: pcm.h:54