mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-23 12:22:42 +00:00
6cbf2b2f32
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@2255 fc73d0e0-1445-4013-8a0c-d673dee63da5
671 lines
14 KiB
C
671 lines
14 KiB
C
/*
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
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 the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
// snd_mem.c: sound caching
|
|
|
|
#include "quakedef.h"
|
|
|
|
#include "winquake.h"
|
|
|
|
int cache_full_cycle;
|
|
|
|
qbyte *S_Alloc (int size);
|
|
|
|
/*
|
|
================
|
|
ResampleSfx
|
|
================
|
|
*/
|
|
void ResampleSfx (sfx_t *sfx, int inrate, int inwidth, qbyte *data)
|
|
{
|
|
int incount;
|
|
int outcount;
|
|
int srcsample;
|
|
float stepscale;
|
|
int i;
|
|
int sample, fracstep;
|
|
unsigned int samplefrac;
|
|
sfxcache_t *sc;
|
|
extern cvar_t snd_linearresample;
|
|
qboolean linearsampling = !!(snd_linearresample.value);
|
|
|
|
sc = Cache_Check (&sfx->cache);
|
|
if (!sc)
|
|
return;
|
|
|
|
stepscale = (float)inrate / snd_speed; // this is usually 0.5, 1, or 2
|
|
|
|
incount = sc->length;
|
|
outcount = sc->length / stepscale;
|
|
sc->length = outcount;
|
|
if (sc->loopstart != -1)
|
|
sc->loopstart = sc->loopstart / stepscale;
|
|
|
|
sc->speed = snd_speed;
|
|
if (loadas8bit.value)
|
|
sc->width = 1;
|
|
else
|
|
sc->width = inwidth;
|
|
|
|
if (sc->numchannels==2)
|
|
{
|
|
if (stepscale == 1 && inwidth == 1 && sc->width == 1)
|
|
{
|
|
outcount*=2;
|
|
// fast special case
|
|
for (i=0 ; i<outcount ; i++)
|
|
((signed char *)sc->data)[i]
|
|
= (int)( (unsigned char)(data[i]) - 128);
|
|
}
|
|
else if (stepscale == 1 && inwidth == 2 && sc->width == 2)
|
|
{
|
|
outcount*=2;
|
|
// fast special case
|
|
for (i=0 ; i<outcount ; i++)
|
|
((short *)sc->data)[i] = LittleShort ( ((short *)data)[i] );
|
|
}
|
|
else
|
|
{
|
|
// general case
|
|
samplefrac = 0;
|
|
fracstep = stepscale*256;
|
|
for (i=0 ; i<outcount ; i++)
|
|
{
|
|
srcsample = samplefrac >> 8;
|
|
linearsampling = linearsampling && ((srcsample+1) < incount);
|
|
|
|
if (linearsampling)
|
|
{
|
|
if (inwidth == 2)
|
|
sample = ((255 - (samplefrac & 0xFF)) *
|
|
LittleShort( ((short *)data)[ srcsample<<1 ] ) +
|
|
(samplefrac & 0xFF) *
|
|
LittleShort( ((short *)data)[ (srcsample+1)<<1 ] )) >> 8;
|
|
else
|
|
sample = ((255-(samplefrac & 0xFF)) *
|
|
(int)( (unsigned char)(data[ srcsample<<1 ]) - 128 ) +
|
|
(samplefrac & 0xFF) *
|
|
(int)( (unsigned char)(data[ (srcsample+1)<<1 ]) - 128 ));
|
|
}
|
|
else
|
|
{
|
|
if (inwidth == 2)
|
|
sample = LittleShort ( ((short *)data)[(srcsample<<1)] );
|
|
else
|
|
sample = (int)( (unsigned char)(data[(srcsample<<1)]) - 128) << 8;
|
|
}
|
|
if (sc->width == 2)
|
|
((short *)sc->data)[i<<1] = sample;
|
|
else
|
|
((signed char *)sc->data)[i<<1] = sample >> 8;
|
|
|
|
// srcsample = samplefrac >> 8;
|
|
// samplefrac += fracstep;
|
|
if (linearsampling)
|
|
{
|
|
if (inwidth == 2)
|
|
sample = ((255 - (samplefrac & 0xFF)) *
|
|
LittleShort( ((short *)data)[ (srcsample<<1)+1 ] ) +
|
|
(samplefrac & 0xFF) *
|
|
LittleShort( ((short *)data)[ ((srcsample+1)<<1)+1 ] )) >> 8;
|
|
else
|
|
sample = ((255-(samplefrac & 0xFF)) *
|
|
(int)( (unsigned char)(data[ (srcsample<<1)+1 ]) - 128 ) +
|
|
(samplefrac & 0xFF) *
|
|
(int)( (unsigned char)(data[ ((srcsample+1)<<1)+1 ]) - 128 ));
|
|
}
|
|
else
|
|
{
|
|
if (inwidth == 2)
|
|
sample = LittleShort ( ((short *)data)[(srcsample<<1)+1] );
|
|
else
|
|
sample = (int)( (unsigned char)(data[(srcsample<<1)+1]) - 128) << 8;
|
|
}
|
|
if (sc->width == 2)
|
|
((short *)sc->data)[(i<<1)+1] = sample;
|
|
else
|
|
((signed char *)sc->data)[(i<<1)+1] = sample >> 8;
|
|
|
|
samplefrac += fracstep;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
// resample / decimate to the current source rate
|
|
|
|
if (stepscale == 1 && inwidth == 1 && sc->width == 1)
|
|
{
|
|
// fast special case
|
|
for (i=0 ; i<outcount ; i++)
|
|
((signed char *)sc->data)[i]
|
|
= (int)( (unsigned char)(data[i]) - 128);
|
|
}
|
|
else if (stepscale == 1 && inwidth == 2 && sc->width == 2)
|
|
{
|
|
// fast special case
|
|
for (i=0 ; i<outcount ; i++)
|
|
((short *)sc->data)[i] = LittleShort ( ((short *)data)[i] );
|
|
}
|
|
else
|
|
{
|
|
// general case
|
|
samplefrac = 0;
|
|
fracstep = stepscale*256;
|
|
for (i=0 ; i<outcount ; i++)
|
|
{
|
|
srcsample = samplefrac >> 8;
|
|
linearsampling = linearsampling && ((srcsample+1) < incount);
|
|
if (linearsampling)
|
|
{
|
|
if (inwidth == 2)
|
|
sample = ((255 - (samplefrac & 0xFF)) *
|
|
LittleShort( ((short *)data)[srcsample] ) +
|
|
(samplefrac & 0xFF) *
|
|
LittleShort( ((short *)data)[srcsample+1] )) >> 8;
|
|
else
|
|
sample = ((255-(samplefrac & 0xFF)) *
|
|
(int)( (unsigned char)(data[srcsample]) - 128 ) +
|
|
(samplefrac & 0xFF) *
|
|
(int)( (unsigned char)(data[srcsample+1]) - 128 ));
|
|
}
|
|
else
|
|
{
|
|
if (inwidth == 2)
|
|
sample = LittleShort ( ((short *)data)[srcsample] );
|
|
else
|
|
sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
|
|
}
|
|
if (sc->width == 2)
|
|
((short *)sc->data)[i] = sample;
|
|
else
|
|
((signed char *)sc->data)[i] = sample >> 8;
|
|
samplefrac += fracstep;
|
|
}
|
|
}
|
|
}
|
|
|
|
//=============================================================================
|
|
#ifdef DOOMWADS
|
|
// needs fine tuning.. educated guesses
|
|
#define DSPK_RATE 128
|
|
#define DSPK_FREQ 31
|
|
|
|
sfxcache_t *S_LoadDoomSpeakerSound (sfx_t *s, qbyte *data, int datalen, int sndspeed)
|
|
{
|
|
sfxcache_t *sc;
|
|
|
|
// format data from Unofficial Doom Specs v1.6
|
|
unsigned short *dataus;
|
|
int samples, len, timeraccum, inrate, inaccum;
|
|
qbyte *outdata;
|
|
qbyte towrite;
|
|
|
|
if (datalen < 4)
|
|
return NULL;
|
|
|
|
dataus = (unsigned short*)data;
|
|
|
|
if (LittleShort(dataus[0]) != 0)
|
|
return NULL;
|
|
|
|
samples = LittleShort(dataus[1]);
|
|
|
|
data += 4;
|
|
datalen -= 4;
|
|
|
|
if (datalen != samples)
|
|
return NULL;
|
|
|
|
len = (int)((double)samples * (double)snd_speed / DSPK_RATE);
|
|
|
|
sc = Cache_Alloc (&s->cache, len + sizeof(sfxcache_t), s->name);
|
|
if (!sc)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
sc->length = len;
|
|
sc->loopstart = -1;
|
|
sc->numchannels = 1;
|
|
sc->width = 1;
|
|
sc->speed = snd_speed;
|
|
|
|
timeraccum = 0;
|
|
outdata = sc->data;
|
|
towrite = 0x40;
|
|
inrate = (int)((double)snd_speed / DSPK_RATE);
|
|
inaccum = inrate;
|
|
|
|
while (len > 0)
|
|
{
|
|
timeraccum += *data * DSPK_FREQ;
|
|
if (timeraccum > snd_speed)
|
|
{
|
|
towrite ^= 0xFF; // swap speaker component
|
|
timeraccum -= snd_speed;
|
|
}
|
|
|
|
inaccum--;
|
|
if (!inaccum)
|
|
{
|
|
data++;
|
|
inaccum = inrate;
|
|
}
|
|
*outdata = towrite;
|
|
outdata++;
|
|
len--;
|
|
}
|
|
|
|
return sc;
|
|
}
|
|
|
|
sfxcache_t *S_LoadDoomSound (sfx_t *s, qbyte *data, int datalen, int sndspeed)
|
|
{
|
|
sfxcache_t *sc;
|
|
|
|
// format data from Unofficial Doom Specs v1.6
|
|
unsigned short *dataus;
|
|
int samples, rate, len;
|
|
|
|
if (datalen < 8)
|
|
return NULL;
|
|
|
|
dataus = (unsigned short*)data;
|
|
|
|
if (LittleShort(dataus[0]) != 3)
|
|
return NULL;
|
|
|
|
rate = LittleShort(dataus[1]);
|
|
samples = LittleShort(dataus[2]);
|
|
|
|
data += 8;
|
|
datalen -= 8;
|
|
|
|
if (datalen != samples)
|
|
return NULL;
|
|
|
|
len = (int)((double)samples * (double)snd_speed / (double)rate);
|
|
|
|
sc = Cache_Alloc (&s->cache, len + sizeof(sfxcache_t), s->name);
|
|
if (!sc)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
sc->length = samples;
|
|
sc->loopstart = -1;
|
|
sc->numchannels = 1;
|
|
sc->width = 1;
|
|
sc->speed = rate;
|
|
|
|
ResampleSfx (s, sc->speed, sc->width, data);
|
|
|
|
return sc;
|
|
}
|
|
#endif
|
|
|
|
sfxcache_t *S_LoadWavSound (sfx_t *s, qbyte *data, int datalen, int sndspeed)
|
|
{
|
|
wavinfo_t info;
|
|
int len;
|
|
sfxcache_t *sc;
|
|
|
|
info = GetWavinfo (s->name, data, datalen);
|
|
if (info.numchannels < 1 || info.numchannels > 2)
|
|
{
|
|
Con_Printf ("%s has an unsupported quantity of channels.\n",s->name);
|
|
return NULL;
|
|
}
|
|
|
|
len = (int) ((double) info.samples * (double) snd_speed / (double) info.rate);
|
|
len = len * info.width * info.numchannels;
|
|
|
|
sc = Cache_Alloc ( &s->cache, len + sizeof(sfxcache_t), s->name);
|
|
if (!sc)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
sc->length = info.samples;
|
|
sc->loopstart = info.loopstart;
|
|
sc->speed = info.rate;
|
|
sc->width = info.width;
|
|
sc->numchannels = info.numchannels;
|
|
|
|
ResampleSfx (s, sc->speed, sc->width, data + info.dataofs);
|
|
|
|
return sc;
|
|
}
|
|
|
|
sfxcache_t *S_LoadOVSound (sfx_t *s, qbyte *data, int datalen, int sndspeed);
|
|
|
|
S_LoadSound_t AudioInputPlugins[10] =
|
|
{
|
|
#ifdef AVAIL_OGGVORBIS
|
|
S_LoadOVSound,
|
|
#endif
|
|
S_LoadWavSound,
|
|
#ifdef DOOMWADS
|
|
S_LoadDoomSound,
|
|
S_LoadDoomSpeakerSound,
|
|
#endif
|
|
};
|
|
|
|
qboolean S_RegisterSoundInputPlugin(S_LoadSound_t loadfnc)
|
|
{
|
|
int i;
|
|
for (i = 0; i < sizeof(AudioInputPlugins)/sizeof(AudioInputPlugins[0]); i++)
|
|
{
|
|
if (!AudioInputPlugins[i])
|
|
{
|
|
AudioInputPlugins[i] = loadfnc;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
==============
|
|
S_LoadSound
|
|
==============
|
|
*/
|
|
|
|
sfxcache_t *S_LoadSound (sfx_t *s)
|
|
{
|
|
char stackbuf[65536];
|
|
char namebuffer[256];
|
|
qbyte *data;
|
|
sfxcache_t *sc;
|
|
int i;
|
|
|
|
char *name = s->name;
|
|
|
|
// see if still in memory
|
|
sc = Cache_Check (&s->cache);
|
|
if (sc)
|
|
return sc;
|
|
|
|
s->decoder = NULL;
|
|
|
|
|
|
|
|
|
|
if (name[1] == ':' && name[2] == '\\')
|
|
{
|
|
FILE *f;
|
|
#ifndef _WIN32 //convert from windows to a suitable alternative.
|
|
char unixname[128];
|
|
sprintf(unixname, "/mnt/%c/%s", name[0]-'A'+'a', name+3);
|
|
name = unixname;
|
|
while (*name)
|
|
{
|
|
if (*name == '\\')
|
|
*name = '/';
|
|
name++;
|
|
}
|
|
name = unixname;
|
|
#endif
|
|
|
|
if ((f = fopen(name, "rb")))
|
|
{
|
|
com_filesize = COM_filelength(f);
|
|
data = Hunk_TempAlloc (com_filesize);
|
|
fread(data, 1, com_filesize, f);
|
|
fclose(f);
|
|
}
|
|
else
|
|
{
|
|
Con_SafePrintf ("Couldn't load %s\n", namebuffer);
|
|
return NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//Con_Printf ("S_LoadSound: %x\n", (int)stackbuf);
|
|
// load it in
|
|
|
|
data = NULL;
|
|
if (*name == '*')
|
|
{
|
|
Q_strcpy(namebuffer, "players/male/"); //q2
|
|
Q_strcat(namebuffer, name+1); //q2
|
|
}
|
|
else if (name[0] == '.' && name[1] == '.' && name[2] == '/')
|
|
Q_strcpy(namebuffer, name+3);
|
|
else
|
|
{
|
|
Q_strcpy(namebuffer, "sound/");
|
|
Q_strcat(namebuffer, name);
|
|
data = COM_LoadStackFile(name, stackbuf, sizeof(stackbuf));
|
|
}
|
|
|
|
// Con_Printf ("loading %s\n",namebuffer);
|
|
|
|
if (!data)
|
|
data = COM_LoadStackFile(namebuffer, stackbuf, sizeof(stackbuf));
|
|
}
|
|
|
|
if (!data)
|
|
{
|
|
//FIXME: check to see if qued for download.
|
|
Con_DPrintf ("Couldn't load %s\n", namebuffer);
|
|
return NULL;
|
|
}
|
|
|
|
for (i = sizeof(AudioInputPlugins)/sizeof(AudioInputPlugins[0])-1; i >= 0; i--)
|
|
{
|
|
if (AudioInputPlugins[i])
|
|
{
|
|
sc = AudioInputPlugins[i](s, data, com_filesize, snd_speed);
|
|
if (sc)
|
|
return sc;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
WAV loading
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
|
|
qbyte *data_p;
|
|
qbyte *iff_end;
|
|
qbyte *last_chunk;
|
|
qbyte *iff_data;
|
|
int iff_chunk_len;
|
|
|
|
|
|
short GetLittleShort(void)
|
|
{
|
|
short val = 0;
|
|
val = *data_p;
|
|
val = val + (*(data_p+1)<<8);
|
|
data_p += 2;
|
|
return val;
|
|
}
|
|
|
|
int GetLittleLong(void)
|
|
{
|
|
int val = 0;
|
|
val = *data_p;
|
|
val = val + (*(data_p+1)<<8);
|
|
val = val + (*(data_p+2)<<16);
|
|
val = val + (*(data_p+3)<<24);
|
|
data_p += 4;
|
|
return val;
|
|
}
|
|
|
|
void FindNextChunk(char *name)
|
|
{
|
|
while (1)
|
|
{
|
|
data_p=last_chunk;
|
|
data_p += 4;
|
|
if (data_p >= iff_end)
|
|
{ // didn't find the chunk
|
|
data_p = NULL;
|
|
return;
|
|
}
|
|
iff_chunk_len = GetLittleLong();
|
|
if (iff_chunk_len < 0)
|
|
{
|
|
data_p = NULL;
|
|
return;
|
|
}
|
|
// if (iff_chunk_len > 1024*1024)
|
|
// Sys_Error ("FindNextChunk: %i length is past the 1 meg sanity limit", iff_chunk_len);
|
|
data_p -= 8;
|
|
last_chunk = data_p + 8 + ( (iff_chunk_len + 1) & ~1 );
|
|
if (!Q_strncmp(data_p, name, 4))
|
|
return;
|
|
}
|
|
}
|
|
|
|
void FindChunk(char *name)
|
|
{
|
|
last_chunk = iff_data;
|
|
FindNextChunk (name);
|
|
}
|
|
|
|
|
|
#if 0
|
|
void DumpChunks(void)
|
|
{
|
|
char str[5];
|
|
|
|
str[4] = 0;
|
|
data_p=iff_data;
|
|
do
|
|
{
|
|
memcpy (str, data_p, 4);
|
|
data_p += 4;
|
|
iff_chunk_len = GetLittleLong();
|
|
Con_Printf ("0x%x : %s (%d)\n", (int)(data_p - 4), str, iff_chunk_len);
|
|
data_p += (iff_chunk_len + 1) & ~1;
|
|
} while (data_p < iff_end);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
============
|
|
GetWavinfo
|
|
============
|
|
*/
|
|
wavinfo_t GetWavinfo (char *name, qbyte *wav, int wavlength)
|
|
{
|
|
wavinfo_t info;
|
|
int i;
|
|
int format;
|
|
int samples;
|
|
|
|
memset (&info, 0, sizeof(info));
|
|
|
|
if (!wav)
|
|
return info;
|
|
|
|
iff_data = wav;
|
|
iff_end = wav + wavlength;
|
|
|
|
// find "RIFF" chunk
|
|
FindChunk("RIFF");
|
|
if (!(data_p && !Q_strncmp(data_p+8, "WAVE", 4)))
|
|
{
|
|
Con_Printf("Missing RIFF/WAVE chunks\n");
|
|
return info;
|
|
}
|
|
|
|
// get "fmt " chunk
|
|
iff_data = data_p + 12;
|
|
// DumpChunks ();
|
|
|
|
FindChunk("fmt ");
|
|
if (!data_p)
|
|
{
|
|
Con_Printf("Missing fmt chunk\n");
|
|
return info;
|
|
}
|
|
data_p += 8;
|
|
format = GetLittleShort();
|
|
if (format != 1)
|
|
{
|
|
Con_Printf("Microsoft PCM format only\n");
|
|
return info;
|
|
}
|
|
|
|
info.numchannels = GetLittleShort();
|
|
info.rate = GetLittleLong();
|
|
data_p += 4+2;
|
|
info.width = GetLittleShort() / 8;
|
|
|
|
// get cue chunk
|
|
FindChunk("cue ");
|
|
if (data_p)
|
|
{
|
|
data_p += 32;
|
|
info.loopstart = GetLittleLong();
|
|
// Con_Printf("loopstart=%d\n", sfx->loopstart);
|
|
|
|
// if the next chunk is a LIST chunk, look for a cue length marker
|
|
FindNextChunk ("LIST");
|
|
if (data_p)
|
|
{
|
|
if (!strncmp (data_p + 28, "mark", 4))
|
|
{ // this is not a proper parse, but it works with cooledit...
|
|
data_p += 24;
|
|
i = GetLittleLong (); // samples in loop
|
|
info.samples = info.loopstart + i;
|
|
// Con_Printf("looped length: %i\n", i);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
info.loopstart = -1;
|
|
|
|
// find data chunk
|
|
FindChunk("data");
|
|
if (!data_p)
|
|
{
|
|
Con_Printf("Missing data chunk\n");
|
|
return info;
|
|
}
|
|
|
|
data_p += 4;
|
|
samples = GetLittleLong () / info.width /info.numchannels;
|
|
|
|
if (info.samples)
|
|
{
|
|
if (samples < info.samples)
|
|
Sys_Error ("Sound %s has a bad loop length", name);
|
|
}
|
|
else
|
|
info.samples = samples;
|
|
|
|
info.dataofs = data_p - wav;
|
|
|
|
return info;
|
|
}
|