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Annotation of quake1/sound.h, revision 1.1

1.1     ! root        1: // sound.h -- client sound i/o functions
        !             2: 
        !             3: #ifndef __SOUND__
        !             4: #define __SOUND__
        !             5: 
        !             6: #define DEFAULT_SOUND_PACKET_VOLUME 255
        !             7: #define DEFAULT_SOUND_PACKET_ATTENUATION 1.0
        !             8: 
        !             9: // !!! if this is changed, it much be changed in asm_i386.h too !!!
        !            10: typedef struct
        !            11: {
        !            12:        int left;
        !            13:        int right;
        !            14: } portable_samplepair_t;
        !            15: 
        !            16: typedef struct sfx_s
        !            17: {
        !            18:        char    name[MAX_QPATH];
        !            19:        cache_user_t    cache;
        !            20: } sfx_t;
        !            21: 
        !            22: // !!! if this is changed, it much be changed in asm_i386.h too !!!
        !            23: typedef struct
        !            24: {
        !            25:        int     length;
        !            26:        int     loopstart;
        !            27:        int     speed;
        !            28:        int     width;
        !            29:        int     stereo;
        !            30:        byte    data[1];                // variable sized
        !            31: } sfxcache_t;
        !            32: 
        !            33: typedef struct
        !            34: {
        !            35:        qboolean                gamealive;
        !            36:        qboolean                soundalive;
        !            37:        qboolean                splitbuffer;
        !            38:        int                             channels;
        !            39:        int                             samples;                                // mono samples in buffer
        !            40:        int                             submission_chunk;               // don't mix less than this #
        !            41:        int                             samplepos;                              // in mono samples
        !            42:        int                             samplebits;
        !            43:        int                             speed;
        !            44:        unsigned char   *buffer;
        !            45: } dma_t;
        !            46: 
        !            47: // !!! if this is changed, it much be changed in asm_i386.h too !!!
        !            48: typedef struct
        !            49: {
        !            50:        sfx_t   *sfx;                   // sfx number
        !            51:        int             leftvol;                // 0-255 volume
        !            52:        int             rightvol;               // 0-255 volume
        !            53:        int             end;                    // end time in global paintsamples
        !            54:        int     pos;                    // sample position in sfx
        !            55:        int             looping;                // where to loop, -1 = no looping
        !            56:        int             entnum;                 // to allow overriding a specific sound
        !            57:        int             entchannel;             //
        !            58:        vec3_t  origin;                 // origin of sound effect
        !            59:        vec_t   dist_mult;              // distance multiplier (attenuation/clipK)
        !            60:        int             master_vol;             // 0-255 master volume
        !            61: } channel_t;
        !            62: 
        !            63: typedef struct
        !            64: {
        !            65:        int             rate;
        !            66:        int             width;
        !            67:        int             channels;
        !            68:        int             loopstart;
        !            69:        int             samples;
        !            70:        int             dataofs;                // chunk starts this many bytes from file start
        !            71: } wavinfo_t;
        !            72: 
        !            73: void S_Init (void);
        !            74: void S_Shutdown (void);
        !            75: void S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol,  float attenuation);
        !            76: void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation);
        !            77: void S_StopSound (int entnum, int entchannel);
        !            78: void S_StopAllSounds(void);
        !            79: void S_ClearBuffer (void);
        !            80: void S_Update (vec3_t origin, vec3_t v_forward, vec3_t v_right, vec3_t v_up);
        !            81: void S_ExtraUpdate (void);
        !            82: 
        !            83: sfx_t *S_PrecacheSound (char *sample);
        !            84: void S_TouchSound (char *sample);
        !            85: 
        !            86: void S_PaintChannels(int endtime);
        !            87: void S_InitPaintChannels (void);
        !            88: 
        !            89: // picks a channel based on priorities, empty slots, number of channels
        !            90: channel_t *SND_PickChannel(int entnum, int entchannel);
        !            91: 
        !            92: // spatializes a channel
        !            93: void SND_Spatialize(channel_t *ch);
        !            94: 
        !            95: // initializes cycling through a DMA buffer and returns information on it
        !            96: qboolean SNDDMA_Init(void);
        !            97: 
        !            98: // gets the current DMA position
        !            99: int SNDDMA_GetDMAPos(void);
        !           100: 
        !           101: // shutdown the DMA xfer.
        !           102: void SNDDMA_Shutdown(void);
        !           103: 
        !           104: // ====================================================================
        !           105: // User-setable variables
        !           106: // ====================================================================
        !           107: 
        !           108: #define        MAX_CHANNELS                    128
        !           109: #define        MAX_DYNAMIC_CHANNELS    8
        !           110: 
        !           111: 
        !           112: extern channel_t   channels[MAX_CHANNELS];
        !           113: // 0 to MAX_DYNAMIC_CHANNELS-1 = normal entity sounds
        !           114: // MAX_DYNAMIC_CHANNELS to MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS -1 = water, etc
        !           115: // MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS to total_channels = static sounds
        !           116: 
        !           117: extern int                     total_channels;
        !           118: 
        !           119: //
        !           120: // Fake dma is a synchronous faking of the DMA progress used for
        !           121: // isolating performance in the renderer.  The fakedma_updates is
        !           122: // number of times S_Update() is called per second.
        !           123: //
        !           124: 
        !           125: extern qboolean                fakedma;
        !           126: extern int                     fakedma_updates;
        !           127: extern int             paintedtime;
        !           128: extern vec3_t listener_origin;
        !           129: extern vec3_t listener_forward;
        !           130: extern vec3_t listener_right;
        !           131: extern vec3_t listener_up;
        !           132: extern volatile dma_t *shm;
        !           133: extern vec_t sound_nominal_clip_dist;
        !           134: 
        !           135: extern cvar_t loadas8bit;
        !           136: extern cvar_t bgmvolume;
        !           137: extern cvar_t volume;
        !           138: 
        !           139: void S_LocalSound (char *s);
        !           140: sfxcache_t *S_LoadSound (sfx_t *s);
        !           141: 
        !           142: void S_StartNoiseTrack (char *name);
        !           143: wavinfo_t GetWavinfo (char *name, byte *wav, int wavlength);
        !           144: 
        !           145: void SND_InitScaletable (void);
        !           146: 
        !           147: #endif

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