intpcm.h revision 193640 
1241900Sdim/*-
2241900Sdim * Copyright (c) 2008-2009 Ariff Abdullah <ariff@FreeBSD.org>
3241900Sdim * All rights reserved.
4241900Sdim *
5241900Sdim * Redistribution and use in source and binary forms, with or without
6241900Sdim * modification, are permitted provided that the following conditions
7241900Sdim * are met:
8241900Sdim * 1. Redistributions of source code must retain the above copyright
9241900Sdim *    notice, this list of conditions and the following disclaimer.
10241900Sdim * 2. Redistributions in binary form must reproduce the above copyright
11241900Sdim *    notice, this list of conditions and the following disclaimer in the
12241900Sdim *    documentation and/or other materials provided with the distribution.
13241900Sdim *
14241900Sdim * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15241900Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16241900Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17276792Sdim * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18241900Sdim * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19241900Sdim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20241900Sdim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21241900Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22241900Sdim * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23241900Sdim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24241900Sdim * SUCH DAMAGE.
25241900Sdim *
26241900Sdim * $FreeBSD: head/sys/dev/sound/pcm/intpcm.h 193640 2009-06-07 19:12:08Z ariff $
27241900Sdim */
28241900Sdim
29241900Sdim#ifndef _SND_INTPCM_H_
30241900Sdim#define _SND_INTPCM_H_
31241900Sdim
32241900Sdimtypedef intpcm_t intpcm_read_t(uint8_t *);
33241900Sdimtypedef void intpcm_write_t(uint8_t *, intpcm_t);
34241900Sdim
35241900Sdimextern intpcm_read_t *feeder_format_read_op(uint32_t);
36241900Sdimextern intpcm_write_t *feeder_format_write_op(uint32_t);
37241900Sdim
38241900Sdim#define INTPCM_DECLARE_OP_WRITE(SIGN, BIT, ENDIAN, SHIFT)		\
39241900Sdimstatic __inline void							\
40241900Sdimintpcm_write_##SIGN##BIT##ENDIAN(uint8_t *dst, intpcm_t v)		\
41241900Sdim{									\
42241900Sdim									\
43241900Sdim	_PCM_WRITE_##SIGN##BIT##_##ENDIAN(dst, v >> SHIFT);		\
44241900Sdim}
45241900Sdim
46241900Sdim#define INTPCM_DECLARE_OP_8(SIGN, ENDIAN)				\
47241900Sdimstatic __inline intpcm_t						\
48241900Sdimintpcm_read_##SIGN##8##ENDIAN(uint8_t *src)				\
49241900Sdim{									\
50241900Sdim									\
51241900Sdim	return (_PCM_READ_##SIGN##8##_##ENDIAN(src) << 24);		\
52241900Sdim}									\
53241900SdimINTPCM_DECLARE_OP_WRITE(SIGN, 8, ENDIAN, 24)
54241900Sdim
55241900Sdim#define INTPCM_DECLARE_OP_16(SIGN, ENDIAN)				\
56241900Sdimstatic __inline intpcm_t						\
57241900Sdimintpcm_read_##SIGN##16##ENDIAN(uint8_t *src)				\
58276792Sdim{									\
59241900Sdim									\
60241900Sdim	return (_PCM_READ_##SIGN##16##_##ENDIAN(src) << 16);		\
61241900Sdim}									\
62241900SdimINTPCM_DECLARE_OP_WRITE(SIGN, 16, ENDIAN, 16)
63241900Sdim
64241900Sdim#define INTPCM_DECLARE_OP_24(SIGN, ENDIAN)				\
65241900Sdimstatic __inline intpcm_t						\
66241900Sdimintpcm_read_##SIGN##24##ENDIAN(uint8_t *src)				\
67241900Sdim{									\
68241900Sdim									\
69241900Sdim	return (_PCM_READ_##SIGN##24##_##ENDIAN(src) << 8);		\
70241900Sdim}									\
71241900SdimINTPCM_DECLARE_OP_WRITE(SIGN, 24, ENDIAN, 8)
72241900Sdim
73241900Sdim#define INTPCM_DECLARE_OP_32(SIGN, ENDIAN)				\
74241900Sdimstatic __inline intpcm_t						\
75241900Sdimintpcm_read_##SIGN##32##ENDIAN(uint8_t *src)				\
76241900Sdim{									\
77									\
78	return (_PCM_READ_##SIGN##32##_##ENDIAN(src));			\
79}									\
80									\
81static __inline void							\
82intpcm_write_##SIGN##32##ENDIAN(uint8_t *dst, intpcm_t v)		\
83{									\
84									\
85	_PCM_WRITE_##SIGN##32##_##ENDIAN(dst, v);			\
86}
87
88
89#define INTPCM_DECLARE(t)						\
90									\
91G711_DECLARE_TABLE(t);							\
92									\
93static __inline intpcm_t						\
94intpcm_read_ulaw(uint8_t *src)						\
95{									\
96									\
97	return (_G711_TO_INTPCM((t).ulaw_to_u8, *src) << 24);		\
98}									\
99									\
100static __inline intpcm_t						\
101intpcm_read_alaw(uint8_t *src)						\
102{									\
103									\
104	return (_G711_TO_INTPCM((t).alaw_to_u8, *src) << 24);		\
105}									\
106									\
107static __inline void							\
108intpcm_write_ulaw(uint8_t *dst, intpcm_t v)				\
109{									\
110									\
111	*dst = _INTPCM_TO_G711((t).u8_to_ulaw, v >> 24);		\
112}									\
113									\
114static __inline void							\
115intpcm_write_alaw(uint8_t *dst, intpcm_t v)				\
116{									\
117									\
118	*dst = _INTPCM_TO_G711((t).u8_to_alaw, v >> 24);		\
119}									\
120									\
121INTPCM_DECLARE_OP_8(S, NE)						\
122INTPCM_DECLARE_OP_16(S, LE)						\
123INTPCM_DECLARE_OP_16(S, BE)						\
124INTPCM_DECLARE_OP_24(S, LE)						\
125INTPCM_DECLARE_OP_24(S, BE)						\
126INTPCM_DECLARE_OP_32(S, LE)						\
127INTPCM_DECLARE_OP_32(S, BE)						\
128INTPCM_DECLARE_OP_8(U,  NE)						\
129INTPCM_DECLARE_OP_16(U, LE)						\
130INTPCM_DECLARE_OP_16(U, BE)						\
131INTPCM_DECLARE_OP_24(U, LE)						\
132INTPCM_DECLARE_OP_24(U, BE)						\
133INTPCM_DECLARE_OP_32(U, LE)						\
134INTPCM_DECLARE_OP_32(U, BE)
135
136#endif	/* !_SND_INTPCM_H_ */
137