Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-// snd_mem.c: sound caching
+
#include "quakedef.h"
-qbyte *S_Alloc (int size);
+#include "snd_main.h"
+#include "snd_ogg.h"
+#include "snd_wav.h"
+#include "snd_modplug.h"
+
+unsigned char resampling_buffer [48000 * 2 * 2];
+
/*
-================
-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 (sfxcache_t *sc, qbyte *data, char *name)
+snd_ringbuffer_t *Snd_CreateRingBuffer (const snd_format_t* format, unsigned int sampleframes, void* buffer)
{
- int i, outcount, srcsample, srclength, samplefrac, fracstep;
-
- // this is usually 0.5 (128), 1 (256), or 2 (512)
- fracstep = ((double) sc->speed / (double) shm->speed) * 256.0;
+ snd_ringbuffer_t *ringbuffer;
- srclength = sc->length << sc->stereo;
+ // If the caller provides a buffer, it must give us its size
+ if (sampleframes == 0 && buffer != NULL)
+ return NULL;
- outcount = (double) sc->length * (double) shm->speed / (double) sc->speed;
- sc->length = outcount;
- if (sc->loopstart != -1)
- sc->loopstart = (double) sc->loopstart * (double) shm->speed / (double) sc->speed;
+ ringbuffer = (snd_ringbuffer_t*)Mem_Alloc(snd_mempool, sizeof (*ringbuffer));
+ memset(ringbuffer, 0, sizeof(*ringbuffer));
+ memcpy(&ringbuffer->format, format, sizeof(ringbuffer->format));
- sc->speed = shm->speed;
+ // If we haven't been given a buffer
+ if (buffer == NULL)
+ {
+ unsigned int maxframes;
+ size_t memsize;
-// resample / decimate to the current source rate
+ if (sampleframes == 0)
+ maxframes = (format->speed + 1) / 2; // Make the sound buffer large enough for containing 0.5 sec of sound
+ else
+ maxframes = sampleframes;
- if (fracstep == 256)
- {
- // fast case for direct transfer
- if (sc->width == 1) // 8bit
- for (i = 0;i < srclength;i++)
- ((signed char *)sc->data)[i] = ((unsigned char *)data)[i] - 128;
- else //if (sc->width == 2) // 16bit
- for (i = 0;i < srclength;i++)
- ((short *)sc->data)[i] = LittleShort (((short *)data)[i]);
+ 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", name);
- samplefrac = 0;
- 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 ; i++)
- {
- *out++ = LittleShort (in[srcsample ]);
- *out++ = LittleShort (in[srcsample+1]);
- srcsample += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- *out++ = LittleShort (in[srcsample ]);
- srcsample += fracstep;
- }
- }
- }
- else
- {
- signed char *out = (void *)sc->data;
- unsigned char *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- fracstep <<= 1;
- for (i=0 ; i<outcount ; i++)
- {
- *out++ = in[srcsample ] - 128;
- *out++ = in[srcsample+1] - 128;
- srcsample += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- *out++ = in[srcsample ] - 128;
- srcsample += fracstep;
- }
- }
- }
- }
- else
- {
- int sample;
- int a, b;
- if (sc->width == 2)
- {
- short *out = (void *)sc->data, *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = (samplefrac >> 8) << 1;
- a = in[srcsample ];
- if (srcsample+2 >= srclength)
- b = 0;
- else
- b = in[srcsample+2];
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (short) sample;
- a = in[srcsample+1];
- if (srcsample+2 >= srclength)
- b = 0;
- else
- b = in[srcsample+3];
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (short) sample;
- samplefrac += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = samplefrac >> 8;
- a = in[srcsample ];
- if (srcsample+1 >= srclength)
- b = 0;
- else
- b = in[srcsample+1];
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (short) sample;
- samplefrac += fracstep;
- }
- }
- }
- else
- {
- signed char *out = (void *)sc->data;
- unsigned char *in = (void *)data;
- if (sc->stereo) // LordHavoc: stereo sound support
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = (samplefrac >> 8) << 1;
- a = (int) in[srcsample ] - 128;
- if (srcsample+2 >= srclength)
- b = 0;
- else
- b = (int) in[srcsample+2] - 128;
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (signed char) sample;
- a = (int) in[srcsample+1] - 128;
- if (srcsample+2 >= srclength)
- b = 0;
- else
- b = (int) in[srcsample+3] - 128;
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (signed char) sample;
- samplefrac += fracstep;
- }
- }
- else
- {
- for (i=0 ; i<outcount ; i++)
- {
- srcsample = samplefrac >> 8;
- a = (int) in[srcsample ] - 128;
- if (srcsample+1 >= srclength)
- b = 0;
- else
- b = (int) in[srcsample+1] - 128;
- sample = (((b - a) * (samplefrac & 255)) >> 8) + a;
- *out++ = (signed char) sample;
- samplefrac += fracstep;
- }
- }
- }
- }
+ ringbuffer->ring = (unsigned char *) buffer;
+ ringbuffer->maxframes = sampleframes;
}
- // LordHavoc: use this for testing if it ever becomes useful again
- //COM_WriteFile (va("sound/%s.pcm", name), sc->data, (sc->length << sc->stereo) * sc->width);
+ return ringbuffer;
}
-//=============================================================================
/*
-==============
-S_LoadSound
-==============
+====================
+Snd_CreateSndBuffer
+====================
*/
-sfxcache_t *S_LoadSound (sfx_t *s, int complain)
+snd_buffer_t *Snd_CreateSndBuffer (const unsigned char *samples, unsigned int sampleframes, const snd_format_t* in_format, unsigned int sb_speed)
{
- char namebuffer[256];
- qbyte *data;
- wavinfo_t info;
- int len;
- sfxcache_t *sc;
+ size_t newsampleframes, memsize;
+ snd_buffer_t* sb;
- // see if still in memory
- if (s->sfxcache)
- return s->sfxcache;
+ newsampleframes = (size_t) ((double)sampleframes * (double)sb_speed / (double)in_format->speed);
- // load it in
- strcpy(namebuffer, "sound/");
- strcat(namebuffer, s->name);
+ memsize = newsampleframes * in_format->channels * in_format->width;
+ memsize += sizeof (*sb) - sizeof (sb->samples);
- data = FS_LoadFile(namebuffer, false);
+ sb = (snd_buffer_t*)Mem_Alloc (snd_mempool, memsize);
+ sb->format.channels = in_format->channels;
+ sb->format.width = in_format->width;
+ sb->format.speed = sb_speed;
+ sb->maxframes = newsampleframes;
+ sb->nbframes = 0;
- if (!data)
+ if (!Snd_AppendToSndBuffer (sb, samples, sampleframes, in_format))
{
- if (complain)
- Con_Printf ("Couldn't load %s\n", namebuffer);
+ Mem_Free (sb);
return NULL;
}
- info = GetWavinfo (s->name, data, fs_filesize);
- // LordHavoc: stereo sounds are now allowed (intended for music)
- if (info.channels < 1 || info.channels > 2)
+ return sb;
+}
+
+
+/*
+====================
+Snd_AppendToSndBuffer
+====================
+*/
+qboolean Snd_AppendToSndBuffer (snd_buffer_t* sb, const unsigned char *samples, unsigned int sampleframes, const snd_format_t* format)
+{
+ size_t srclength, outcount;
+ unsigned char *out_data;
+
+ //Con_DPrintf("ResampleSfx: %d samples @ %dHz -> %d samples @ %dHz\n",
+ // sampleframes, format->speed, outcount, sb->format.speed);
+
+ // If the formats are incompatible
+ if (sb->format.channels != format->channels || sb->format.width != format->width)
{
- Con_Printf ("%s has an unsupported number of channels (%i)\n",s->name, info.channels);
- Mem_Free(data);
- return NULL;
+ Con_Print("AppendToSndBuffer: incompatible sound formats!\n");
+ return false;
}
- // calculate resampled length
- len = (int) ((double) info.samples * (double) shm->speed / (double) info.rate);
- len = len * info.width * info.channels;
+ outcount = (size_t) ((double)sampleframes * (double)sb->format.speed / (double)format->speed);
- // FIXME: add S_UnloadSounds or something?
- Mem_FreePool(&s->mempool);
- s->mempool = Mem_AllocPool(s->name);
- sc = s->sfxcache = Mem_Alloc(s->mempool, len + sizeof(sfxcache_t));
- if (!sc)
+ // If the sound buffer is too short
+ if (outcount > sb->maxframes - sb->nbframes)
{
- Mem_FreePool(&s->mempool);
- Mem_Free(data);
- return NULL;
+ Con_Print("AppendToSndBuffer: sound buffer too short!\n");
+ return false;
}
- sc->length = info.samples;
- sc->loopstart = info.loopstart;
- sc->speed = info.rate;
- sc->width = info.width;
- sc->stereo = info.channels == 2;
+ out_data = &sb->samples[sb->nbframes * sb->format.width * sb->format.channels];
+ srclength = sampleframes * format->channels;
- ResampleSfx (sc, data + info.dataofs, s->name);
+ // Trivial case (direct transfer)
+ if (format->speed == sb->format.speed)
+ {
+ if (format->width == 1)
+ {
+ size_t i;
- Mem_Free(data);
- return sc;
-}
+ for (i = 0; i < srclength; i++)
+ ((signed char*)out_data)[i] = samples[i] - 128;
+ }
+ else // if (format->width == 2)
+ memcpy (out_data, samples, srclength * format->width);
+ }
+ // General case (linear interpolation with a fixed-point fractional
+ // step, 18-bit integer part and 14-bit fractional part)
+ // Can handle up to 2^18 (262144) samples per second (> 96KHz stereo)
+# define FRACTIONAL_BITS 14
+# define FRACTIONAL_MASK ((1 << FRACTIONAL_BITS) - 1)
+# define INTEGER_BITS (sizeof(samplefrac)*8 - FRACTIONAL_BITS)
+ else
+ {
+ const unsigned int fracstep = (unsigned int)((double)format->speed / sb->format.speed * (1 << FRACTIONAL_BITS));
+ size_t remain_in = srclength, total_out = 0;
+ unsigned int samplefrac;
+ const unsigned char *in_ptr = samples;
+ unsigned char *out_ptr = out_data;
+
+ // Check that we can handle one second of that sound
+ if (format->speed * format->channels > (1 << INTEGER_BITS))
+ {
+ Con_Printf ("ResampleSfx: sound quality too high for resampling (%uHz, %u channel(s))\n",
+ format->speed, format->channels);
+ return 0;
+ }
+ // We work 1 sec at a time to make sure we don't accumulate any
+ // significant error when adding "fracstep" over several seconds, and
+ // also to be able to handle very long sounds.
+ while (total_out < outcount)
+ {
+ size_t tmpcount, interpolation_limit, i, j;
+ unsigned int srcsample;
-/*
-===============================================================================
+ samplefrac = 0;
-WAV loading
+ // If more than 1 sec of sound remains to be converted
+ if (outcount - total_out > sb->format.speed)
+ {
+ tmpcount = sb->format.speed;
+ interpolation_limit = tmpcount; // all samples can be interpolated
+ }
+ else
+ {
+ tmpcount = outcount - total_out;
+ interpolation_limit = (int)ceil((double)(((remain_in / format->channels) - 1) << FRACTIONAL_BITS) / fracstep);
+ if (interpolation_limit > tmpcount)
+ interpolation_limit = tmpcount;
+ }
-===============================================================================
-*/
+ // 16 bit samples
+ if (format->width == 2)
+ {
+ const short* in_ptr_short;
+ // Interpolated part
+ for (i = 0; i < interpolation_limit; i++)
+ {
+ srcsample = (samplefrac >> FRACTIONAL_BITS) * format->channels;
+ in_ptr_short = &((const short*)in_ptr)[srcsample];
-qbyte *data_p;
-qbyte *iff_end;
-qbyte *last_chunk;
-qbyte *iff_data;
-int iff_chunk_len;
+ for (j = 0; j < format->channels; j++)
+ {
+ int a, b;
+ a = *in_ptr_short;
+ b = *(in_ptr_short + format->channels);
+ *((short*)out_ptr) = (((b - a) * (samplefrac & FRACTIONAL_MASK)) >> FRACTIONAL_BITS) + a;
-short GetLittleShort(void)
-{
- short val = 0;
- val = *data_p;
- val = val + (*(data_p+1)<<8);
- data_p += 2;
- return val;
-}
+ in_ptr_short++;
+ out_ptr += sizeof (short);
+ }
-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;
-}
+ samplefrac += fracstep;
+ }
-void FindNextChunk(char *name)
-{
- while (1)
- {
- data_p=last_chunk;
+ // Non-interpolated part
+ for (/* nothing */; i < tmpcount; i++)
+ {
+ srcsample = (samplefrac >> FRACTIONAL_BITS) * format->channels;
+ in_ptr_short = &((const short*)in_ptr)[srcsample];
- if (data_p >= iff_end)
- { // didn't find the chunk
- data_p = NULL;
- return;
- }
+ for (j = 0; j < format->channels; j++)
+ {
+ *((short*)out_ptr) = *in_ptr_short;
- data_p += 4;
- iff_chunk_len = GetLittleLong();
- if (iff_chunk_len < 0)
- {
- data_p = NULL;
- return;
+ in_ptr_short++;
+ out_ptr += sizeof (short);
+ }
+
+ samplefrac += fracstep;
+ }
+ }
+ // 8 bit samples
+ else // if (format->width == 1)
+ {
+ const unsigned char* in_ptr_byte;
+
+ // Convert up to 1 sec of sound
+ for (i = 0; i < interpolation_limit; i++)
+ {
+ srcsample = (samplefrac >> FRACTIONAL_BITS) * format->channels;
+ in_ptr_byte = &((const unsigned char*)in_ptr)[srcsample];
+
+ for (j = 0; j < format->channels; j++)
+ {
+ int a, b;
+
+ a = *in_ptr_byte - 128;
+ b = *(in_ptr_byte + format->channels) - 128;
+ *((signed char*)out_ptr) = (((b - a) * (samplefrac & FRACTIONAL_MASK)) >> FRACTIONAL_BITS) + a;
+
+ in_ptr_byte++;
+ out_ptr += sizeof (signed char);
+ }
+
+ samplefrac += fracstep;
+ }
+
+ // Non-interpolated part
+ for (/* nothing */; i < tmpcount; i++)
+ {
+ srcsample = (samplefrac >> FRACTIONAL_BITS) * format->channels;
+ in_ptr_byte = &((const unsigned char*)in_ptr)[srcsample];
+
+ for (j = 0; j < format->channels; j++)
+ {
+ *((signed char*)out_ptr) = *in_ptr_byte - 128;
+
+ in_ptr_byte++;
+ out_ptr += sizeof (signed char);
+ }
+
+ samplefrac += fracstep;
+ }
+ }
+
+ // Update the counters and the buffer position
+ remain_in -= format->speed * format->channels;
+ in_ptr += format->speed * format->channels * format->width;
+ total_out += tmpcount;
}
- 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);
+ sb->nbframes += outcount;
+ return true;
}
-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
-============
+==============
+S_LoadSound
+==============
*/
-wavinfo_t GetWavinfo (char *name, qbyte *wav, int wavlength)
+qboolean S_LoadSound (sfx_t *sfx, qboolean complain)
{
- wavinfo_t info;
- int i;
- int format;
- int samples;
+ char namebuffer[MAX_QPATH + 16];
+ size_t len;
- memset (&info, 0, sizeof(info));
+ // See if already loaded
+ if (sfx->fetcher != NULL)
+ return true;
- if (!wav)
- return info;
+ // 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;
- iff_data = wav;
- iff_end = wav + wavlength;
+ // No sound?
+ if (snd_renderbuffer == NULL)
+ return false;
- // find "RIFF" chunk
- FindChunk("RIFF");
- if (!(data_p && !strncmp(data_p+8, "WAVE", 4)))
- {
- Con_Printf("Missing RIFF/WAVE chunks\n");
- return info;
- }
+ // Initialize volume peak to 0; if ReplayGain is supported, the loader will change this away
+ sfx->volume_peak = 0.0;
- // get "fmt " chunk
- iff_data = data_p + 12;
- //DumpChunks ();
+ if (developer_loading.integer)
+ Con_Printf("loading sound %s\n", sfx->name);
- 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;
+ SCR_PushLoadingScreen(true, sfx->name, 1);
- // get cue chunk
- FindChunk("cue ");
- if (data_p)
+ // LordHavoc: if the sound filename does not begin with sound/, try adding it
+ if (strncasecmp(sfx->name, "sound/", 6))
{
- data_p += 32;
- info.loopstart = GetLittleLong();
-
- // if the next chunk is a LIST chunk, look for a cue length marker
- FindNextChunk ("LIST");
- if (data_p)
+ dpsnprintf (namebuffer, sizeof(namebuffer), "sound/%s", sfx->name);
+ len = strlen(namebuffer);
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
{
- 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;
- }
+ if (S_LoadWavFile (namebuffer, sfx))
+ goto loaded;
+ memcpy (namebuffer + len - 3, "ogg", 4);
+ }
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
+ {
+ if (OGG_LoadVorbisFile (namebuffer, sfx))
+ goto loaded;
+ }
+ else
+ {
+ if (ModPlug_LoadModPlugFile (namebuffer, sfx))
+ goto loaded;
}
}
- else
- info.loopstart = -1;
- // find data chunk
- FindChunk("data");
- if (!data_p)
+ // LordHavoc: 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"))
{
- Con_Printf("Missing data chunk\n");
- return info;
+ if (S_LoadWavFile (namebuffer, sfx))
+ goto loaded;
+ memcpy (namebuffer + len - 3, "ogg", 4);
}
-
- data_p += 4;
- samples = GetLittleLong () / info.width / info.channels;
-
- if (info.samples)
+ if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
{
- if (samples < info.samples)
- Host_Error ("Sound %s has a bad loop length", name);
+ if (OGG_LoadVorbisFile (namebuffer, sfx))
+ goto loaded;
}
else
- info.samples = samples;
+ {
+ if (ModPlug_LoadModPlugFile (namebuffer, sfx))
+ goto loaded;
+ }
- info.dataofs = data_p - wav;
+ // Can't load the sound!
+ sfx->flags |= SFXFLAG_FILEMISSING;
+ if (complain)
+ Con_DPrintf("failed to load sound \"%s\"\n", sfx->name);
- return info;
-}
+ SCR_PopLoadingScreen(false);
+ return false;
+loaded:
+ SCR_PopLoadingScreen(false);
+ return true;
+}
projects / xonotic / darkplaces.git / blobdiff