/*-
 * Copyright (c) 2008 Ariff Abdullah <ariff@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef __SND_INTPCM_H__
#define __SND_INTPCM_H__

#include "pcm.h"
#include "g711.h"

typedef intpcm_t (*intpcm_read_t)(uint8_t *);
typedef void (*intpcm_write_t)(uint8_t *, intpcm_t);

#define INTPCM_DECLARE_OP(SIGN, BIT, ENDIAN, SHIFT)			\
static __inline intpcm_t						\
intpcm_read_##SIGN##BIT##ENDIAN(uint8_t *src)				\
{									\
									\
	return (_PCM_READ_##SIGN##BIT##_##ENDIAN(src) << SHIFT);	\
}									\
									\
static __inline void							\
intpcm_write_##SIGN##BIT##ENDIAN(uint8_t *dst, intpcm_t v)		\
{									\
									\
	_PCM_WRITE_##SIGN##BIT##_##ENDIAN(dst, v >> SHIFT);		\
}


#define INTPCM_DECLARE(t)						\
									\
G711_DECLARE_TABLE(t);							\
									\
static __inline intpcm_t						\
intpcm_read_ulaw(uint8_t *src)						\
{									\
									\
	return (_G711_TO_INTPCM((t).ulaw_to_u8, *src) << 24);		\
}									\
									\
static __inline intpcm_t						\
intpcm_read_alaw(uint8_t *src)						\
{									\
									\
	return (_G711_TO_INTPCM((t).alaw_to_u8, *src) << 24);		\
}									\
									\
static __inline void							\
intpcm_write_ulaw(uint8_t *dst, intpcm_t v)				\
{									\
									\
	*dst = _INTPCM_TO_G711((t).u8_to_ulaw, v >> 24);		\
}									\
									\
static __inline void							\
intpcm_write_alaw(uint8_t *dst, intpcm_t v)				\
{									\
									\
	*dst = _INTPCM_TO_G711((t).u8_to_alaw, v >> 24);		\
}									\
									\
INTPCM_DECLARE_OP(S,  8, NE, 24)					\
INTPCM_DECLARE_OP(S, 16, LE, 16)					\
INTPCM_DECLARE_OP(S, 16, BE, 16)					\
INTPCM_DECLARE_OP(S, 24, LE,  8)					\
INTPCM_DECLARE_OP(S, 24, BE,  8)					\
INTPCM_DECLARE_OP(S, 32, LE,  0)					\
INTPCM_DECLARE_OP(S, 32, BE,  0)					\
INTPCM_DECLARE_OP(U,  8, NE, 24)					\
INTPCM_DECLARE_OP(U, 16, LE, 16)					\
INTPCM_DECLARE_OP(U, 16, BE, 16)					\
INTPCM_DECLARE_OP(U, 24, LE,  8)					\
INTPCM_DECLARE_OP(U, 24, BE,  8)					\
INTPCM_DECLARE_OP(U, 32, LE,  0)					\
INTPCM_DECLARE_OP(U, 32, BE,  0)

#endif	/* !__SND_INTPCM_H__ */