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.
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-// snd_mem.c: sound caching
+
#include "quakedef.h"
-int cache_full_cycle;
+#include "snd_main.h"
+#include "snd_ogg.h"
+#include "snd_wav.h"
-byte *S_Alloc (int size);
/*
-================
-ResampleSfx
-================
+====================
+Snd_CreateRingBuffer
+
+If "buffer" is NULL, the function allocates one buffer of "sampleframes" sample frames itself
+(if "sampleframes" is 0, the function chooses the size).
+====================
*/
-void ResampleSfx (sfx_t *sfx, int inrate, byte *data)
+snd_ringbuffer_t *Snd_CreateRingBuffer (const snd_format_t* format, unsigned int sampleframes, void* buffer)
{
- int outcount;
- int srcsample;
- float stepscale;
- int i;
- int 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
+ snd_ringbuffer_t *ringbuffer;
- 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;
+ // If the caller provides a buffer, it must give us its size
+ if (sampleframes == 0 && buffer != NULL)
+ return NULL;
-// resample / decimate to the current source rate
+ ringbuffer = (snd_ringbuffer_t*)Mem_Alloc(snd_mempool, sizeof (*ringbuffer));
+ memset(ringbuffer, 0, sizeof(*ringbuffer));
+ memcpy(&ringbuffer->format, format, sizeof(ringbuffer->format));
- if (stepscale == 1/* && inwidth == 1*/ && sc->width == 1)
- {
-// fast special case
- // LordHavoc: I do not serve the readability gods...
- int *indata, *outdata;
- int count4, count1;
- count1 = outcount << sc->stereo;
- count4 = count1 >> 2;
- indata = (void *)data;
- outdata = (void *)sc->data;
- while (count4--)
- *outdata++ = *indata++ ^ 0x80808080;
- if (count1 & 2)
- ((short*)outdata)[0] = ((short*)indata)[0] ^ 0x8080;
- if (count1 & 1)
- ((char*)outdata)[2] = ((char*)indata)[2] ^ 0x80;
- /*
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- for (i=0 ; i<(outcount<<1) ; i++)
- ((signed char *)sc->data)[i] = (int)( (unsigned char)(data[i]) - 128);
- }
- else
- {
- 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) // LordHavoc: quick case for 16bit
+ // If we haven't been given a buffer
+ if (buffer == NULL)
{
- if (sc->stereo) // LordHavoc: stereo sound support
- for (i=0 ; i<outcount*2 ;i++)
- ((short *)sc->data)[i] = LittleShort (((short *)data)[i]);
+ unsigned int maxframes;
+ size_t memsize;
+
+ if (sampleframes == 0)
+ maxframes = (format->speed + 1) / 2; // Make the sound buffer large enough for containing 0.5 sec of sound
else
- for (i=0 ; i<outcount ;i++)
- ((short *)sc->data)[i] = LittleShort (((short *)data)[i]);
+ maxframes = sampleframes;
+
+ memsize = maxframes * format->width * format->channels;
+ ringbuffer->ring = (unsigned char *) Mem_Alloc(snd_mempool, memsize);
+ ringbuffer->maxframes = maxframes;
}
else
{
-// general case
- Con_DPrintf("ResampleSfx: resampling sound %s\n", sfx->name);
- samplefrac = 0;
- fracstep = stepscale*256;
- if ((fracstep & 255) == 0) // skipping points on perfect multiple
- {
- srcsample = 0;
- fracstep >>= 8;
- if (sc->width == 2)
- {
- short *out = (void *)sc->data, *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- fracstep <<= 1;
- for (i=0 ; i<outcount ;)
- {
- *out++ = (short) LittleShort (in[srcsample ]);
- *out++ = (short) LittleShort (in[srcsample+1]);
- srcsample += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- *out++ = (short) LittleShort (in[srcsample ]);
- srcsample += fracstep;
- }
- }
- }
- else
- {
- signed char *out = (void *)sc->data, *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- fracstep <<= 1;
- for (i=0 ; i<outcount ;)
- {
- *out++ = (signed char) in[srcsample ] - 128;
- *out++ = (signed char) in[srcsample+1] - 128;
- srcsample += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- *out++ = (signed char) in[srcsample ] - 128;
- srcsample += fracstep;
- }
- }
- }
- }
- else
- {
- int sample;
- if (sc->width == 2)
- {
- short *out = (void *)sc->data, *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- for (i=0 ; i<outcount ;)
- {
- srcsample = (samplefrac >> 7) & ~1;
- samplefrac += fracstep;
- sample = (LittleShort (in[srcsample ]) * (256 - (samplefrac & 255)) + LittleShort (in[srcsample+2]) * (samplefrac & 255)) >> 8;
- *out++ = (short) sample;
- sample = (LittleShort (in[srcsample+1]) * (256 - (samplefrac & 255)) + LittleShort (in[srcsample+3]) * (samplefrac & 255)) >> 8;
- *out++ = (short) sample;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = samplefrac >> 8;
- samplefrac += fracstep;
- sample = (LittleShort (in[srcsample ]) * (256 - (samplefrac & 255)) + LittleShort (in[srcsample+1]) * (samplefrac & 255)) >> 8;
- *out++ = (short) sample;
- }
- }
- }
- else
- {
- signed char *out = (void *)sc->data, *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- for (i=0 ; i<outcount ;)
- {
- srcsample = (samplefrac >> 7) & ~1;
- samplefrac += fracstep;
- sample = ((((unsigned char) in[srcsample ] - 128) * (256 - (samplefrac & 255))) + (((unsigned char) in[srcsample+2] - 128) * (samplefrac & 255))) >> 8;
- *out++ = (signed char) sample;
- sample = ((((unsigned char) in[srcsample+1] - 128) * (256 - (samplefrac & 255))) + (((unsigned char) in[srcsample+3] - 128) * (samplefrac & 255))) >> 8;
- *out++ = (signed char) sample;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = samplefrac >> 8;
- samplefrac += fracstep;
- sample = ((((unsigned char) in[srcsample ] - 128) * (256 - (samplefrac & 255))) + (((unsigned char) in[srcsample+1] - 128) * (samplefrac & 255))) >> 8;
- *out++ = (signed char) sample;
- }
- }
- }
- }
+ ringbuffer->ring = (unsigned char *) buffer;
+ ringbuffer->maxframes = sampleframes;
}
+
+ return ringbuffer;
}
+
//=============================================================================
/*
S_LoadSound
==============
*/
-sfxcache_t *S_LoadSound (sfx_t *s)
+qboolean S_LoadSound (sfx_t *sfx, qboolean complain)
{
- 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
- strcpy(namebuffer, "sound/");
- strcat(namebuffer, s->name);
-
-// Con_Printf ("loading %s\n",namebuffer);
-
- data = COM_LoadStackFile(namebuffer, stackbuf, sizeof(stackbuf), false);
-
- if (!data)
- {
- Con_Printf ("Couldn't load %s\n", namebuffer);
- return NULL;
- }
-
- info = GetWavinfo (s->name, data, com_filesize);
- // LordHavoc: stereo sounds are now allowed (intended for music)
- if (info.channels < 1 || info.channels > 2)
- {
- Con_Printf ("%s has an unsupported number of channels (%i)\n",s->name, info.channels);
- return NULL;
- }
- /*
- 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 == 2;
-
- ResampleSfx (s, sc->speed, data + info.dataofs);
-
- return sc;
-}
-
-
+ char namebuffer[MAX_QPATH + 16];
+ size_t len;
-/*
-===============================================================================
-
-WAV loading
-
-===============================================================================
-*/
+ // See if already loaded
+ if (sfx->fetcher != NULL)
+ return true;
+ // If we weren't able to load it previously, no need to retry
+ // Note: S_PrecacheSound clears this flag to cause a retry
+ if (sfx->flags & SFXFLAG_FILEMISSING)
+ return false;
-byte *data_p;
-byte *iff_end;
-byte *last_chunk;
-byte *iff_data;
-int iff_chunk_len;
+ // No sound?
+ if (snd_renderbuffer == NULL)
+ return false;
+ // Initialize volume peak to 0; if ReplayGain is supported, the loader will change this away
+ sfx->volume_peak = 0.0;
-short GetLittleShort(void)
-{
- short val = 0;
- val = *data_p;
- val = val + (*(data_p+1)<<8);
- data_p += 2;
- return val;
-}
+ if (developer_loading.integer)
+ Con_Printf("loading sound %s\n", sfx->name);
-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;
-}
+ SCR_PushLoadingScreen(true, sfx->name, 1);
-void FindNextChunk(char *name)
-{
- while (1)
+ // LadyHavoc: if the sound filename does not begin with sound/, try adding it
+ if (strncasecmp(sfx->name, "sound/", 6))
{
- data_p=last_chunk;
-
- if (data_p >= iff_end)
- { // didn't find the chunk
- data_p = NULL;
- return;
+ dpsnprintf (namebuffer, sizeof(namebuffer), "sound/%s", sfx->name);
+ len = strlen(namebuffer);
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
+ {
+ if (S_LoadWavFile (namebuffer, sfx))
+ goto loaded;
+ memcpy (namebuffer + len - 3, "ogg", 4);
}
-
- data_p += 4;
- iff_chunk_len = GetLittleLong();
- if (iff_chunk_len < 0)
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
{
- data_p = NULL;
- return;
+ if (OGG_LoadVorbisFile (namebuffer, sfx))
+ goto loaded;
}
-// 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 (!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
+ // LadyHavoc: then try without the added sound/ as wav and ogg
+ dpsnprintf (namebuffer, sizeof(namebuffer), "%s", sfx->name);
+ len = strlen(namebuffer);
+ // request foo.wav: tries foo.wav, then foo.ogg
+ // request foo.ogg: tries foo.ogg only
+ // request foo.mod: tries foo.mod only
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
{
- 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 && !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);
- }
- }
+ if (S_LoadWavFile (namebuffer, sfx))
+ goto loaded;
+ memcpy (namebuffer + len - 3, "ogg", 4);
}
- else
- info.loopstart = -1;
-
-// find data chunk
- FindChunk("data");
- if (!data_p)
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
{
- Con_Printf("Missing data chunk\n");
- return info;
+ if (OGG_LoadVorbisFile (namebuffer, sfx))
+ goto loaded;
}
- data_p += 4;
- samples = GetLittleLong () / info.width;
+ // Can't load the sound!
+ sfx->flags |= SFXFLAG_FILEMISSING;
+ if (complain)
+ Con_DPrintf("failed to load sound \"%s\"\n", sfx->name);
- if (info.samples)
- {
- if (samples < info.samples)
- Host_Error ("Sound %s has a bad loop length", name);
- }
- else
- info.samples = samples;
+ SCR_PopLoadingScreen(false);
+ return false;
- info.dataofs = data_p - wav;
-
- return info;
+loaded:
+ SCR_PopLoadingScreen(false);
+ return true;
}
-