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/**
* \file src/instr/simple.c
* \brief Simple Wave Format Support
* \author Jaroslav Kysela <perex@perex.cz>
* \date 1999-2001
*/
/*
* Simple Wave Format Support
* Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library 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.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <stdio.h>
#include "local.h"
#include <sound/ainstr_simple.h>
/**
* \brief Free simple instrument
* \param simple Simple instrument handle
* \return 0 on success otherwise a negative error code
*/
int snd_instr_simple_free(snd_instr_simple_t *simple)
{
if (simple == NULL)
return 0;
free(simple);
return 0;
}
static long simple_size(simple_instrument_t *instr)
{
int size;
size = instr->size;
if (instr->format & SIMPLE_WAVE_16BIT)
size <<= 1;
if (instr->format & SIMPLE_WAVE_STEREO)
size <<= 1;
return size;
}
/**
* \brief Convert the simple instrument to byte stream
* \param simple Simple instrument handle
* \param name Simple instrument name
* \param __data Result - allocated byte stream
* \param __size Result - size of allocated byte stream
* \return 0 on success otherwise a negative error code
*/
int snd_instr_simple_convert_to_stream(snd_instr_simple_t *simple,
const char *name,
snd_instr_header_t **__data,
size_t *__size)
{
snd_instr_header_t *put;
int size;
char *ptr;
simple_instrument_t *instr;
simple_xinstrument_t *xinstr;
if (simple == NULL || __data == NULL)
return -EINVAL;
instr = (simple_instrument_t *)simple;
*__data = NULL;
*__size = 0;
size = simple_size(simple);
if (snd_instr_header_malloc(&put, sizeof(simple_xinstrument_t) + size) < 0)
return -ENOMEM;
/* build header */
if (name)
snd_instr_header_set_name(put, name);
snd_instr_header_set_type(put, SND_SEQ_INSTR_ATYPE_DATA);
snd_instr_header_set_format(put, SND_SEQ_INSTR_ID_SIMPLE);
/* build data section */
xinstr = (simple_xinstrument_t *)snd_instr_header_get_data(put);
xinstr->stype = SIMPLE_STRU_INSTR;
xinstr->share_id[0] = __cpu_to_le32(instr->share_id[0]);
xinstr->share_id[1] = __cpu_to_le32(instr->share_id[1]);
xinstr->share_id[2] = __cpu_to_le32(instr->share_id[2]);
xinstr->share_id[3] = __cpu_to_le32(instr->share_id[3]);
xinstr->format = __cpu_to_le32(instr->format);
xinstr->size = __cpu_to_le32(instr->size);
xinstr->start = __cpu_to_le32(instr->start);
xinstr->loop_start = __cpu_to_le32(instr->loop_start);
xinstr->loop_end = __cpu_to_le32(instr->loop_end);
xinstr->loop_repeat = __cpu_to_le16(instr->loop_repeat);
xinstr->effect1 = instr->effect1;
xinstr->effect1_depth = instr->effect1_depth;
xinstr->effect2 = instr->effect2;
xinstr->effect2_depth = instr->effect2_depth;
ptr = (char *)(xinstr + 1);
memcpy(ptr, instr->address.ptr, size);
/* write result */
*__data = put;
*__size = sizeof(*put) + sizeof(simple_xinstrument_t) + size;
return 0;
}
/**
* \brief Convert the byte stream to simple instrument
* \param __data byte stream
* \param size size of byte stream
* \param simple Result - simple instrument handle
* \return 0 on success otherwise a negative error code
*/
#ifndef DOXYGEN
int snd_instr_simple_convert_from_stream(snd_instr_header_t *__data ATTRIBUTE_UNUSED,
size_t size ATTRIBUTE_UNUSED,
snd_instr_simple_t **simple ATTRIBUTE_UNUSED)
#else
int snd_instr_simple_convert_from_stream(snd_instr_header_t *__data,
size_t size,
snd_instr_simple_t **simple)
#endif
{
/* TODO */
return -ENXIO;
}
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