quakeforge/libs/audio/renderer/snd_sfx.c

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/*
#FILENAME#
#DESCRIPTION#
Copyright (C) 2004 #AUTHOR#
Author: #AUTHOR#
Date: #DATE#
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((used)) const char rcsid[] =
"$Id: snd_dma.c 11380 2007-03-10 14:17:52Z taniwha $";
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/cmd.h"
#include "QF/cvar.h"
#include "QF/hash.h"
#include "QF/quakefs.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "snd_render.h"
#define MAX_SFX 512
static sfx_t snd_sfx[MAX_SFX];
static int snd_num_sfx;
static hashtab_t *snd_sfx_hash;
static cvar_t *precache;
static const char *
snd_sfx_getkey (void *sfx, void *unused)
{
return ((sfx_t *) sfx)->name;
}
static void
snd_sfx_free (void *_sfx, void *unused)
{
sfx_t *sfx = (sfx_t *) _sfx;
free ((char *) sfx->name);
sfx->name = 0;
sfx->owner = 0;
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}
void
SND_SFX_Cache (sfx_t *sfx, char *realname, wavinfo_t info,
cache_loader_t loader)
{
sfxblock_t *block = calloc (1, sizeof (sfxblock_t));
sfx->data.block = block;
sfx->wavinfo = SND_CacheWavinfo;
sfx->touch = SND_CacheTouch;
sfx->retain = SND_CacheRetain;
sfx->release = SND_CacheRelease;
sfx->getbuffer = SND_CacheGetBuffer;
block->sfx = sfx;
block->file = realname;
block->wavinfo = info;
Cache_Add (&block->cache, block, loader);
}
void
SND_SFX_Stream (sfx_t *sfx, char *realname, wavinfo_t info,
sfx_t *(*open) (sfx_t *sfx))
{
sfxstream_t *stream = calloc (1, sizeof (sfxstream_t));
sfx->open = open;
sfx->wavinfo = SND_CacheWavinfo;
sfx->touch = sfx->retain = SND_StreamRetain;
sfx->release = SND_StreamRelease;
sfx->getbuffer = SND_StreamGetBuffer;
sfx->data.stream = stream;
stream->file = realname;
stream->wavinfo = info;
}
sfx_t *
SND_SFX_StreamOpen (sfx_t *sfx, void *file,
long (*read)(void *, float **),
int (*seek)(sfxstream_t *, int),
void (*close) (sfx_t *))
{
sfxstream_t *stream = sfx->data.stream;
wavinfo_t *info = &stream->wavinfo;
int frames;
int size;
sfx_t *new_sfx = calloc (1, sizeof (sfx_t));
new_sfx->name = sfx->name;
new_sfx->owner = sfx;
new_sfx->wavinfo = SND_CacheWavinfo;
new_sfx->touch = new_sfx->retain = SND_StreamRetain;
new_sfx->release = SND_StreamRelease;
new_sfx->getbuffer = SND_StreamGetBuffer;
new_sfx->close = close;
frames = snd_shm->speed * 0.3;
frames = (frames + 255) & ~255;
size = frames * info->channels * sizeof (float);
stream = calloc (1, sizeof (sfxstream_t) + size);
new_sfx->data.stream = stream;
memcpy ((byte *) stream->buffer.data + size, "\xde\xad\xbe\xef", 4);
stream->file = file;
stream->sfx = new_sfx;
stream->ll_read = read;
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stream->ll_seek = seek;
stream->wavinfo = *sfx->wavinfo (sfx);
stream->buffer.length = frames;
stream->buffer.advance = SND_StreamAdvance;
stream->buffer.setpos = SND_StreamSetPos;
stream->buffer.sfx = new_sfx;
SND_SetPaint (&stream->buffer);
SND_SetupResampler (&stream->buffer, 1); // get sfx setup properly
stream->buffer.setpos (&stream->buffer, 0); // pre-fill the buffer
return new_sfx;
}
void
SND_SFX_StreamClose (sfx_t *sfx)
{
sfxstream_t *stream = sfx->data.stream;
SND_PulldownResampler (stream);
free (stream);
free (sfx);
}
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sfx_t *
SND_LoadSound (const char *name)
{
sfx_t *sfx;
if (!snd_sfx_hash)
return 0;
if ((sfx = (sfx_t *) Hash_Find (snd_sfx_hash, name)))
return sfx;
if (snd_num_sfx == MAX_SFX)
Sys_Error ("s_load_sound: out of sfx_t");
sfx = &snd_sfx[snd_num_sfx++];
sfx->name = strdup (name);
sfx->owner = sfx;
if (SND_Load (sfx) == -1) {
snd_num_sfx--;
return 0;
}
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Hash_Add (snd_sfx_hash, sfx);
return sfx;
}
sfx_t *
SND_PrecacheSound (const char *name)
{
sfx_t *sfx;
if (!name)
Sys_Error ("SND_PrecacheSound: NULL");
sfx = SND_LoadSound (va ("sound/%s", name));
if (sfx && precache->int_val) {
if (sfx->retain (sfx))
sfx->release (sfx);
}
return sfx;
}
static void
s_gamedir (int phase)
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{
snd_num_sfx = 0;
}
static void
s_soundlist_f (void)
{
int load, total, i;
sfx_t *sfx;
if (Cmd_Argc() >= 2 && Cmd_Argv (1)[0])
load = 1;
else
load = 0;
total = 0;
for (sfx = snd_sfx, i = 0; i < snd_num_sfx; i++, sfx++) {
if (load) {
if (!sfx->retain (sfx))
continue;
} else {
if (!sfx->touch (sfx))
continue;
}
total += sfx->length;
Sys_Printf ("%6d %6d %s\n", sfx->loopstart, sfx->length, sfx->name);
if (load)
sfx->release (sfx);
}
Sys_Printf ("Total resident: %i\n", total);
}
void
SND_SFX_Init (void)
{
snd_sfx_hash = Hash_NewTable (511, snd_sfx_getkey, snd_sfx_free, 0);
precache = Cvar_Get ("precache", "1", CVAR_NONE, NULL,
"Toggle the use of a precache");
QFS_GamedirCallback (s_gamedir);
Cmd_AddCommand ("soundlist", s_soundlist_f,
"Reports a list of sounds in the cache");
}