X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=snd_main.h;h=9018f4ebb6bf359602d6e39eac294917c9357ba5;hp=d2e37f39051b49b14596894895870383b25953c6;hb=71de4dd795b4049a7b77a20186820a86a776319d;hpb=532d14fdb70ad99da30e41e32c21a9022f4ba2fb diff --git a/snd_main.h b/snd_main.h index d2e37f39..9018f4eb 100644 --- a/snd_main.h +++ b/snd_main.h @@ -24,20 +24,32 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #include "sound.h" -typedef struct -{ - size_t length; - size_t offset; - qbyte data[4]; // variable sized -} sfxbuffer_t; - -typedef struct +typedef struct snd_format_s { unsigned int speed; - unsigned int width; - unsigned int channels; + unsigned short width; + unsigned short channels; } snd_format_t; +typedef struct snd_buffer_s +{ + snd_format_t format; + unsigned int nbframes; // current size, in sample frames + unsigned int maxframes; // max size (buffer size), in sample frames + unsigned char samples[4]; // variable sized +} snd_buffer_t; + +typedef struct snd_ringbuffer_s +{ + snd_format_t format; + unsigned char* ring; + unsigned int maxframes; // max size (buffer size), in sample frames + unsigned int startframe; // index of the first frame in the buffer + // if startframe == endframe, the bufffer is empty + unsigned int endframe; // index of the first EMPTY frame in the "ring" buffer + // may be smaller than startframe if the "ring" buffer has wrapped +} snd_ringbuffer_t; + // sfx_t flags #define SFXFLAG_NONE 0 #define SFXFLAG_FILEMISSING (1 << 0) // wasn't able to load the associated sound file @@ -50,39 +62,33 @@ struct sfx_s { char name[MAX_QPATH]; sfx_t *next; - mempool_t *mempool; - int locks; // One lock is automatically granted while the sfx is + size_t memsize; // total memory used (including sfx_t and fetcher data) + + // One lock is automatically granted while the sfx is // playing (and removed when stopped). Locks can also be - // added by S_PrecacheSound and S_ServerSounds. + 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. + unsigned int flags; // cf SFXFLAG_* defines - snd_format_t format; - int loopstart; - size_t total_length; + int loopstart; // in sample frames. -1 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 }; -typedef struct -{ - snd_format_t format; - int samples; // mono samples in buffer - int samplepos; // in mono samples - unsigned char *buffer; - int bufferlength; // used only by certain drivers -} dma_t; - -typedef struct +// maximum supported speakers constant +#define SND_LISTENERS 8 + +typedef struct channel_s { + short listener_volume [SND_LISTENERS]; // 0-255 volume per speaker + int master_vol; // 0-255 master volume sfx_t *sfx; // sfx number unsigned int flags; // cf CHANNELFLAG_* defines - int master_vol; // 0-255 master volume - int leftvol; // 0-255 volume - int rightvol; // 0-255 volume - int end; // end time in global paintsamples - int lastptime; // last time this channel was painted - int pos; // sample position in sfx + 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 entnum; // to allow overriding a specific sound int entchannel; vec3_t origin; // origin of sound effect @@ -90,60 +96,93 @@ typedef struct void *fetcher_data; // Per-channel data for the sound fetching function } channel_t; -typedef const sfxbuffer_t* (*snd_fetcher_getsb_t) (channel_t* ch, unsigned int start, unsigned int nbsamples); -typedef void (*snd_fetcher_end_t) (channel_t* ch); +// 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_format_t* (*snd_fetcher_getfmt_t) (sfx_t* sfx); struct snd_fetcher_s { snd_fetcher_getsb_t getsb; - snd_fetcher_end_t end; + snd_fetcher_endsb_t endsb; + snd_fetcher_free_t free; + snd_fetcher_getfmt_t getfmt; }; -void S_PaintChannels(int endtime); +// 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 -// initializes cycling through a DMA buffer and returns information on it -qboolean SNDDMA_Init(void); +extern unsigned int total_channels; +extern channel_t channels[MAX_CHANNELS]; -// gets the current DMA position -int SNDDMA_GetDMAPos(void); +extern snd_ringbuffer_t *snd_renderbuffer; +extern unsigned int soundtime; // WARNING: sound modules must NOT use it -void SNDDMA_Submit(void); +extern cvar_t _snd_mixahead; +extern cvar_t snd_swapstereo; +extern cvar_t snd_streaming; + +#define SND_CHANNELLAYOUT_AUTO 0 +#define SND_CHANNELLAYOUT_STANDARD 1 +#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; + +// If simsound is true, the sound card is not initialized and no sound is submitted to it. +// More generally, all arch-dependent operations are skipped or emulated. +// Used for isolating performance in the renderer. +extern qboolean simsound; + + +// ==================================================================== +// Architecture-independent functions +// ==================================================================== -// shutdown the DMA xfer. -void SNDDMA_Shutdown(void); +void S_PaintChannels (snd_ringbuffer_t* rb, unsigned int starttime, unsigned int endtime); -qboolean S_LoadSound (sfx_t *s, qboolean complain); -void S_UnloadSound(sfx_t *s); +qboolean S_LoadSound (sfx_t *sfx, qboolean complain); void S_LockSfx (sfx_t *sfx); void S_UnlockSfx (sfx_t *sfx); -void *S_LockBuffer(void); -void S_UnlockBuffer(void); +snd_buffer_t *Snd_CreateSndBuffer (const unsigned char *samples, unsigned int sampleframes, const snd_format_t* in_format, unsigned int sb_speed); +qboolean Snd_AppendToSndBuffer (snd_buffer_t* sb, const unsigned char *samples, unsigned int sampleframes, const snd_format_t* format); + +// If "buffer" is NULL, the function allocates one buffer of "sampleframes" sample frames itself +// (if "sampleframes" is 0, the function chooses the size). +snd_ringbuffer_t *Snd_CreateRingBuffer (const snd_format_t* format, unsigned int sampleframes, void* buffer); -extern size_t ResampleSfx (const qbyte *in_data, size_t in_length, const snd_format_t* in_format, qbyte *out_data, const char* sfxname); // ==================================================================== -// User-setable variables +// Architecture-dependent functions // ==================================================================== -// 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_CHANNELS 516 -#define MAX_DYNAMIC_CHANNELS 128 +// Create "snd_renderbuffer" with the proper sound format if the call is successful +// May return a suggested format if the requested format isn't available +qboolean SndSys_Init (const snd_format_t* requested, snd_format_t* suggested); -extern channel_t channels[MAX_CHANNELS]; +// Stop the sound card, delete "snd_renderbuffer" and free its other resources +void SndSys_Shutdown (void); -extern unsigned int total_channels; +// Submit the contents of "snd_renderbuffer" to the sound card +void SndSys_Submit (void); -extern int paintedtime; -extern int soundtime; -extern volatile dma_t *shm; +// Returns the number of sample frames consumed since the sound started +unsigned int SndSys_GetSoundTime (void); -extern cvar_t snd_swapstereo; -extern cvar_t snd_streaming; +// Get the exclusive lock on "snd_renderbuffer" +qboolean SndSys_LockRenderBuffer (void); -extern int snd_blocked; +// Release the exclusive lock on "snd_renderbuffer" +void SndSys_UnlockRenderBuffer (void); #endif