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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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