From a8f828a066773a59fdf646299359d35ae0e845af Mon Sep 17 00:00:00 2001 From: wyatt8740 Date: Mon, 6 Jan 2014 12:02:16 -0500 Subject: Removed accidental upload of copyrighted map files --- WinQuake/snd_mem.c | 682 ++++++++++++++++++++++++++--------------------------- 1 file changed, 341 insertions(+), 341 deletions(-) (limited to 'WinQuake/snd_mem.c') diff --git a/WinQuake/snd_mem.c b/WinQuake/snd_mem.c index 71e32aa..494928a 100644 --- a/WinQuake/snd_mem.c +++ b/WinQuake/snd_mem.c @@ -1,341 +1,341 @@ -/* -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" - -int cache_full_cycle; - -byte *S_Alloc (int size); - -/* -================ -ResampleSfx -================ -*/ -void ResampleSfx (sfx_t *sfx, int inrate, int inwidth, byte *data) -{ - int outcount; - int srcsample; - float stepscale; - int i; - int sample, samplefrac, fracstep; - sfxcache_t *sc; - - sc = Cache_Check (&sfx->cache); - if (!sc) - return; - - stepscale = (float)inrate / shm->speed; // this is usually 0.5, 1, or 2 - - outcount = sc->length / stepscale; - sc->length = outcount; - if (sc->loopstart != -1) - sc->loopstart = sc->loopstart / stepscale; - - sc->speed = shm->speed; - if (loadas8bit.value) - sc->width = 1; - else - sc->width = inwidth; - sc->stereo = 0; - -// resample / decimate to the current source rate - - if (stepscale == 1 && inwidth == 1 && sc->width == 1) - { -// fast special case - for (i=0 ; idata)[i] - = (int)( (unsigned char)(data[i]) - 128); - } - else - { -// general case - samplefrac = 0; - fracstep = stepscale*256; - for (i=0 ; i> 8; - samplefrac += fracstep; - 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; - } - } -} - -//============================================================================= - -/* -============== -S_LoadSound -============== -*/ -sfxcache_t *S_LoadSound (sfx_t *s) -{ - char namebuffer[256]; - byte *data; - wavinfo_t info; - int len; - float stepscale; - sfxcache_t *sc; - byte stackbuf[1*1024]; // avoid dirtying the cache heap - -// see if still in memory - sc = Cache_Check (&s->cache); - if (sc) - return sc; - -//Con_Printf ("S_LoadSound: %x\n", (int)stackbuf); -// load it in - Q_strcpy(namebuffer, "sound/"); - Q_strcat(namebuffer, s->name); - -// Con_Printf ("loading %s\n",namebuffer); - - data = COM_LoadStackFile(namebuffer, stackbuf, sizeof(stackbuf)); - - if (!data) - { - Con_Printf ("Couldn't load %s\n", namebuffer); - return NULL; - } - - info = GetWavinfo (s->name, data, com_filesize); - if (info.channels != 1) - { - Con_Printf ("%s is a stereo sample\n",s->name); - return NULL; - } - - stepscale = (float)info.rate / shm->speed; - len = info.samples / stepscale; - - len = len * info.width * info.channels; - - 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->stereo = info.channels; - - ResampleSfx (s, sc->speed, sc->width, data + info.dataofs); - - return sc; -} - - - -/* -=============================================================================== - -WAV loading - -=============================================================================== -*/ - - -byte *data_p; -byte *iff_end; -byte *last_chunk; -byte *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; - - if (data_p >= iff_end) - { // didn't find the chunk - data_p = NULL; - return; - } - - data_p += 4; - 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); -} - - -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); -} - -/* -============ -GetWavinfo -============ -*/ -wavinfo_t GetWavinfo (char *name, byte *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.channels = 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; - - 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; -} - +/* +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" + +int cache_full_cycle; + +byte *S_Alloc (int size); + +/* +================ +ResampleSfx +================ +*/ +void ResampleSfx (sfx_t *sfx, int inrate, int inwidth, byte *data) +{ + int outcount; + int srcsample; + float stepscale; + int i; + int sample, samplefrac, fracstep; + sfxcache_t *sc; + + sc = Cache_Check (&sfx->cache); + if (!sc) + return; + + stepscale = (float)inrate / shm->speed; // this is usually 0.5, 1, or 2 + + outcount = sc->length / stepscale; + sc->length = outcount; + if (sc->loopstart != -1) + sc->loopstart = sc->loopstart / stepscale; + + sc->speed = shm->speed; + if (loadas8bit.value) + sc->width = 1; + else + sc->width = inwidth; + sc->stereo = 0; + +// resample / decimate to the current source rate + + if (stepscale == 1 && inwidth == 1 && sc->width == 1) + { +// fast special case + for (i=0 ; idata)[i] + = (int)( (unsigned char)(data[i]) - 128); + } + else + { +// general case + samplefrac = 0; + fracstep = stepscale*256; + for (i=0 ; i> 8; + samplefrac += fracstep; + 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; + } + } +} + +//============================================================================= + +/* +============== +S_LoadSound +============== +*/ +sfxcache_t *S_LoadSound (sfx_t *s) +{ + char namebuffer[256]; + byte *data; + wavinfo_t info; + int len; + float stepscale; + sfxcache_t *sc; + byte stackbuf[1*1024]; // avoid dirtying the cache heap + +// see if still in memory + sc = Cache_Check (&s->cache); + if (sc) + return sc; + +//Con_Printf ("S_LoadSound: %x\n", (int)stackbuf); +// load it in + Q_strcpy(namebuffer, "sound/"); + Q_strcat(namebuffer, s->name); + +// Con_Printf ("loading %s\n",namebuffer); + + data = COM_LoadStackFile(namebuffer, stackbuf, sizeof(stackbuf)); + + if (!data) + { + Con_Printf ("Couldn't load %s\n", namebuffer); + return NULL; + } + + info = GetWavinfo (s->name, data, com_filesize); + if (info.channels != 1) + { + Con_Printf ("%s is a stereo sample\n",s->name); + return NULL; + } + + stepscale = (float)info.rate / shm->speed; + len = info.samples / stepscale; + + len = len * info.width * info.channels; + + 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->stereo = info.channels; + + ResampleSfx (s, sc->speed, sc->width, data + info.dataofs); + + return sc; +} + + + +/* +=============================================================================== + +WAV loading + +=============================================================================== +*/ + + +byte *data_p; +byte *iff_end; +byte *last_chunk; +byte *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; + + if (data_p >= iff_end) + { // didn't find the chunk + data_p = NULL; + return; + } + + data_p += 4; + 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); +} + + +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); +} + +/* +============ +GetWavinfo +============ +*/ +wavinfo_t GetWavinfo (char *name, byte *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.channels = 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; + + 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; +} + -- cgit v1.2.3