// One lock is automatically granted while the sfx is
// playing (and removed when stopped). Locks can also be
- int locks; // added by S_PrecacheSound and S_ServerSounds.
- // A SFX with no lock and no SFXFLAG_PERMANENTLOCK is
- // freed at level change by S_ServerSounds.
+ int locks; // added by S_PrecacheSound.
+ // A SFX with no lock, no SFXFLAG_PERMANENTLOCK, and not precached after a level change is freed
unsigned int flags; // cf SFXFLAG_* defines
- int loopstart; // in sample frames. -1 if not looped
+ unsigned int loopstart; // in sample frames. equals total_length if not looped
unsigned int total_length; // in sample frames
const snd_fetcher_t *fetcher;
void *fetcher_data; // Per-sfx data for the sound fetching functions
+
+ float volume_mult; // for replay gain (multiplier to apply)
+ float volume_peak; // for replay gain (highest peak); if set to 0, ReplayGain isn't supported
};
// maximum supported speakers constant
int master_vol; // 0-255 master volume
sfx_t *sfx; // sfx number
unsigned int flags; // cf CHANNELFLAG_* defines
- unsigned int end; // end time in global paintsamples
- unsigned int lastptime; // last time this channel was painted
- unsigned int pos; // sample position in sfx
+ int pos; // sample position in sfx, negative values delay the start of the sound playback
int entnum; // to allow overriding a specific sound
int entchannel;
vec3_t origin; // origin of sound effect
// Sound fetching functions
// "start" is both an input and output parameter: it returns the actual start time of the sound buffer
-typedef const snd_buffer_t* (*snd_fetcher_getsb_t) (channel_t* ch, unsigned int *start, unsigned int nbsampleframes);
-typedef void (*snd_fetcher_endsb_t) (channel_t* ch);
-typedef void (*snd_fetcher_free_t) (sfx_t* sfx);
+typedef const snd_buffer_t* (*snd_fetcher_getsb_t) (void *sfxfetcher, void **chfetcherpointer, unsigned int *start, unsigned int nbsampleframes);
+typedef void (*snd_fetcher_endsb_t) (void *chfetcherdata);
+typedef void (*snd_fetcher_free_t) (void *sfxfetcherdata);
typedef const snd_format_t* (*snd_fetcher_getfmt_t) (sfx_t* sfx);
struct snd_fetcher_s
{
snd_fetcher_getfmt_t getfmt;
};
-// 0 to NUM_AMBIENTS - 1 = water, etc
-// NUM_AMBIENTS to NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS - 1 = normal entity sounds
-// NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS to total_channels = static sounds
-#define MAX_DYNAMIC_CHANNELS 128
-#define MAX_CHANNELS 516
-
extern unsigned int total_channels;
extern channel_t channels[MAX_CHANNELS];
extern snd_ringbuffer_t *snd_renderbuffer;
-extern unsigned int soundtime; // WARNING: sound modules must NOT use it
+extern qboolean snd_threaded; // enables use of snd_usethreadedmixing, provided that no sound hacks are in effect (like timedemo)
+extern qboolean snd_usethreadedmixing; // if true, the main thread does not mix sound, soundtime does not advance, and neither does snd_renderbuffer->endframe, instead the audio thread will call S_MixToBuffer as needed
extern cvar_t _snd_mixahead;
extern cvar_t snd_swapstereo;
#define SND_CHANNELLAYOUT_ALSA 2
extern cvar_t snd_channellayout;
-
extern int snd_blocked; // counter. When > 0, we stop submitting sound to the audio device
extern mempool_t *snd_mempool;
extern qboolean simsound;
+#define STREAM_BUFFER_DURATION 0.3f // in seconds
+#define STREAM_BUFFER_FILL 0.2f // in seconds
+#define STREAM_BUFFER_SIZE(format_ptr) ((int)ceil (STREAM_BUFFER_DURATION * (format_ptr)->speed) * (format_ptr)->width * (format_ptr)->channels)
+
+// We work with 1 sec sequences, so this buffer must be able to contain
+// 1 sec of sound of the highest quality (48 KHz, 16 bit samples, stereo)
+extern unsigned char resampling_buffer [48000 * 2 * 2];
+
+
// ====================================================================
// Architecture-independent functions
// ====================================================================
-void S_PaintChannels (snd_ringbuffer_t* rb, unsigned int starttime, unsigned int endtime);
+void S_MixToBuffer(void *stream, unsigned int frames);
qboolean S_LoadSound (sfx_t *sfx, qboolean complain);
// Release the exclusive lock on "snd_renderbuffer"
void SndSys_UnlockRenderBuffer (void);
+// if the sound system can generate events, send them
+void SndSys_SendKeyEvents(void);
+
+// exported for capturevideo so ogg can see all channels
+typedef struct portable_samplepair_s
+{
+ int sample[SND_LISTENERS];
+} portable_sampleframe_t;
+
+typedef struct listener_s
+{
+ int channel_unswapped; // for un-swapping
+ float yawangle;
+ float dotscale;
+ float dotbias;
+ float ambientvolume;
+}
+listener_t;
+typedef struct speakerlayout_s
+{
+ const char *name;
+ unsigned int channels;
+ listener_t listeners[SND_LISTENERS];
+}
+speakerlayout_t;
#endif