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/*
Audio File Library
Copyright (C) 1998-2000, Michael Pruett <michael@68k.org>
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 library 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA
*/
/*
aupv.c
This file contains an implementation of SGI's Audio Library parameter
value list functions.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "aupvinternal.h"
#include "aupvlist.h"
AUpvlist AUpvnew (int maxitems)
{
AUpvlist aupvlist;
int i;
if (maxitems <= 0)
return AU_NULL_PVLIST;
aupvlist = (AUpvlist) malloc(sizeof (struct _AUpvlist));
assert(aupvlist);
if (aupvlist == NULL)
return AU_NULL_PVLIST;
aupvlist->items = calloc(maxitems, sizeof (struct _AUpvitem));
assert(aupvlist->items);
if (aupvlist->items == NULL)
{
free(aupvlist);
return AU_NULL_PVLIST;
}
/* Initialize the items in the list. */
for (i=0; i<maxitems; i++)
{
aupvlist->items[i].valid = _AU_VALID_PVITEM;
aupvlist->items[i].type = AU_PVTYPE_LONG;
aupvlist->items[i].parameter = 0;
memset(&aupvlist->items[i].value, 0, sizeof (aupvlist->items[i].value));
}
aupvlist->valid = _AU_VALID_PVLIST;
aupvlist->count = maxitems;
return aupvlist;
}
int AUpvgetmaxitems (AUpvlist list)
{
assert(list);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
return list->count;
}
int AUpvfree (AUpvlist list)
{
assert(list);
assert(list->items);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((list->items != _AU_NULL_PVITEM) &&
(list->items[0].valid == _AU_VALID_PVITEM))
{
free(list->items);
}
free(list);
return _AU_SUCCESS;
}
int AUpvsetparam (AUpvlist list, int item, int param)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
list->items[item].parameter = param;
return _AU_SUCCESS;
}
int AUpvsetvaltype (AUpvlist list, int item, int type)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
list->items[item].type = type;
return _AU_SUCCESS;
}
int AUpvsetval (AUpvlist list, int item, void *val)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
switch (list->items[item].type)
{
case AU_PVTYPE_LONG:
list->items[item].value.l = *((long *) val);
break;
case AU_PVTYPE_DOUBLE:
list->items[item].value.d = *((double *) val);
break;
case AU_PVTYPE_PTR:
list->items[item].value.v = *((void **) val);
break;
default:
assert(0);
return AU_BAD_PVLIST;
}
return _AU_SUCCESS;
}
int AUpvgetparam (AUpvlist list, int item, int *param)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
*param = list->items[item].parameter;
return _AU_SUCCESS;
}
int AUpvgetvaltype (AUpvlist list, int item, int *type)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
*type = list->items[item].type;
return _AU_SUCCESS;
}
int AUpvgetval (AUpvlist list, int item, void *val)
{
assert(list);
assert(list->items);
assert(item >= 0);
assert(item < list->count);
if (list == AU_NULL_PVLIST)
return AU_BAD_PVLIST;
if (list->valid != _AU_VALID_PVLIST)
return AU_BAD_PVLIST;
if ((item < 0) || (item > list->count - 1))
return AU_BAD_PVITEM;
if (list->items[item].valid != _AU_VALID_PVITEM)
return AU_BAD_PVLIST;
switch (list->items[item].type)
{
case AU_PVTYPE_LONG:
*((long *) val) = list->items[item].value.l;
break;
case AU_PVTYPE_DOUBLE:
*((double *) val) = list->items[item].value.d;
break;
case AU_PVTYPE_PTR:
*((void **) val) = list->items[item].value.v;
break;
}
return _AU_SUCCESS;
}
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