1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
|
package miniaudio
import "core:c"
foreign import lib { LIB }
/*
Delay
*/
delay_config :: struct {
channels: u32,
sampleRate: u32,
delayInFrames: u32,
delayStart: b32, /* Set to true to delay the start of the output; false otherwise. */
wet: f32, /* 0..1. Default = 1. */
dry: f32, /* 0..1. Default = 1. */
decay: f32, /* 0..1. Default = 0 (no feedback). Feedback decay. Use this for echo. */
}
delay :: struct {
config: delay_config,
cursor: u32, /* Feedback is written to this cursor. Always equal or in front of the read cursor. */
bufferSizeInFrames: u32,
pBuffer: [^]f32,
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
delay_config_init :: proc(channels, sampleRate, delayInFrames: u32, decay: f32) -> delay_config ---
delay_init :: proc(pConfig: ^delay_config, pAllocationCallbacks: ^allocation_callbacks, pDelay: ^delay) -> result ---
delay_uninit :: proc(pDelay: ^delay, pAllocationCallbacks: ^allocation_callbacks) ---
delay_process_pcm_frames :: proc(pDelay: ^delay, pFramesOut, pFramesIn: rawptr, frameCount: u32) -> result ---
delay_set_wet :: proc(pDelay: ^delay, value: f32) ---
delay_get_wet :: proc(pDelay: ^delay) -> f32 ---
delay_set_dry :: proc(pDelay: ^delay, value: f32) ---
delay_get_dry :: proc(pDelay: ^delay) -> f32 ---
delay_set_decay :: proc(pDelay: ^delay, value: f32) ---
delay_get_decay :: proc(pDelay: ^delay) -> f32 ---
}
/* Gainer for smooth volume changes. */
gainer_config :: struct {
channels: u32,
smoothTimeInFrames: u32,
}
gainer :: struct {
config: gainer_config,
t: u32,
masterVolume: f32,
pOldGains: [^]f32,
pNewGains: [^]f32,
/* Memory management. */
_pHeap: rawptr,
_ownsHeap: b32,
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
gainer_config_init :: proc(channels, smoothTimeInFrames: u32) -> gainer_config ---
gainer_get_heap_size :: proc(pConfig: ^gainer_config, pHeapSizeInBytes: ^c.size_t) -> result ---
gainer_init_preallocated :: proc(pConfig: ^gainer_config, pHeap: rawptr, pGainer: ^gainer) -> result ---
gainer_init :: proc(pConfig: ^gainer_config, pAllocationCallbacks: ^allocation_callbacks, pGainer: ^gainer) -> result ---
gainer_uninit :: proc(pGainer: ^gainer, pAllocationCallbacks: ^allocation_callbacks) ---
gainer_process_pcm_frames :: proc(pGainer: ^gainer, pFramesOut: rawptr, pFramesIn: rawptr, frameCount: u64) -> result ---
gainer_set_gain :: proc(pGainer: ^gainer, newGain: f32) -> result ---
gainer_set_gains :: proc(pGainer: ^gainer, pNewGains: [^]f32) -> result ---
gainer_set_master_volume :: proc(pGainer: ^gainer, volume: f32) -> result ---
gainer_get_master_volume :: proc(pGainer: ^gainer, volume: ^f32) -> result ---
}
/* Stereo panner. */
pan_mode :: enum c.int {
balance = 0, /* Does not blend one side with the other. Technically just a balance. Compatible with other popular audio engines and therefore the default. */
pan, /* A true pan. The sound from one side will "move" to the other side and blend with it. */
}
panner_config :: struct {
format: format,
channels: u32,
mode: pan_mode,
pan: f32,
}
panner :: struct {
format: format,
channels: u32,
mode: pan_mode,
pan: f32, /* -1..1 where 0 is no pan, -1 is left side, +1 is right side. Defaults to 0. */
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
panner_config_init :: proc(format: format, channels: u32) -> panner_config ---
panner_init :: proc(pConfig: ^panner_config, pPanner: ^panner) -> result ---
panner_process_pcm_frames :: proc(pPanner: ^panner, pFramesOut, pFramesIn: rawptr, frameCount: u64) -> result ---
panner_set_mode :: proc(pPanner: ^panner, mode: pan_mode) ---
panner_get_mode :: proc(pPanner: ^panner) -> pan_mode ---
panner_set_pan :: proc(pPanner: ^panner, pan: f32) ---
panner_get_pan :: proc(pPanner: ^panner) -> f32 ---
}
/* Fader. */
fader_config :: struct {
format: format,
channels: u32,
sampleRate: u32,
}
fader :: struct {
config: fader_config,
volumeBeg: f32, /* If volumeBeg and volumeEnd is equal to 1, no fading happens (ma_fader_process_pcm_frames() will run as a passthrough). */
volumeEnd: f32,
lengthInFrames: u64, /* The total length of the fade. */
cursorInFrames: i64, /* The current time in frames. Incremented by ma_fader_process_pcm_frames(). Signed because it'll be offset by startOffsetInFrames in set_fade_ex(). */
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
fader_config_init :: proc(format: format, channels, sampleRate: u32) -> fader_config ---
fader_init :: proc(pConfig: ^fader_config, pFader: ^fader) -> result ---
fader_process_pcm_frames :: proc(pFader: ^fader, pFramesOut, pFramesIn: rawptr, frameCount: u64) -> result ---
fader_get_data_format :: proc(pFader: ^fader, pFormat: ^format, pChannels, pSampleRate: ^u32) ---
fader_set_fade :: proc(pFader: ^fader, volumeBeg, volumeEnd: f32, lengthInFrames: u64) ---
fader_set_fade_ex :: proc(pFader: ^fader, volumeBeg, volumeEnd: f32, lengthInFrames: u64, startOffsetInFrames: i64) ---
fader_get_current_volume :: proc(pFader: ^fader) -> f32 ---
}
/* Spatializer. */
vec3f :: struct {
x: f32,
y: f32,
z: f32,
}
atomic_vec3f :: struct {
v: vec3f,
lock: spinlock,
}
attenuation_model :: enum c.int {
none, /* No distance attenuation and no spatialization. */
inverse, /* Equivalent to OpenAL's AL_INVERSE_DISTANCE_CLAMPED. */
linear, /* Linear attenuation. Equivalent to OpenAL's AL_LINEAR_DISTANCE_CLAMPED. */
exponential, /* Exponential attenuation. Equivalent to OpenAL's AL_EXPONENT_DISTANCE_CLAMPED. */
}
positioning :: enum c.int {
absolute,
relative,
}
handedness :: enum c.int {
right,
left,
}
spatializer_listener_config :: struct {
channelsOut: u32,
pChannelMapOut: [^]channel,
handedness: handedness, /* Defaults to right. Forward is -1 on the Z axis. In a left handed system, forward is +1 on the Z axis. */
coneInnerAngleInRadians: f32,
coneOuterAngleInRadians: f32,
coneOuterGain: f32,
speedOfSound: f32,
worldUp: vec3f,
}
spatializer_listener :: struct {
config: spatializer_listener_config,
position: atomic_vec3f, /* The absolute position of the listener. */
direction: atomic_vec3f, /* The direction the listener is facing. The world up vector is config.worldUp. */
velocity: atomic_vec3f,
isEnabled: b32,
/* Memory management. */
_ownsHeap: b32,
_pHeap: rawptr,
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
spatializer_listener_config_init :: proc(channelsOut: u32) -> spatializer_listener_config ---
spatializer_listener_get_heap_size :: proc(pConfig: ^spatializer_listener_config, pHeapSizeInBytes: ^c.size_t) -> result ---
spatializer_listener_init_preallocated :: proc(pConfig: ^spatializer_listener_config, pHeap: rawptr, pListener: ^spatializer_listener) -> result ---
spatializer_listener_init :: proc(pConfig: ^spatializer_listener_config, pAllocationCallbacks: ^allocation_callbacks, pListener: ^spatializer_listener) -> result ---
spatializer_listener_uninit :: proc(pListener: ^spatializer_listener, pAllocationCallbacks: ^allocation_callbacks) ---
spatializer_listener_get_channel_map :: proc(pListener: ^spatializer_listener) -> ^channel ---
spatializer_listener_set_cone :: proc(pListener: ^spatializer_listener, innerAngleInRadians, outerAngleInRadians, outerGain: f32) ---
spatializer_listener_get_cone :: proc(pListener: ^spatializer_listener, pInnerAngleInRadians, pOuterAngleInRadians, pOuterGain: ^f32) ---
spatializer_listener_set_position :: proc(pListener: ^spatializer_listener, x, y, z: f32) ---
spatializer_listener_get_position :: proc(pListener: ^spatializer_listener) -> vec3f ---
spatializer_listener_set_direction :: proc(pListener: ^spatializer_listener, x, y, z: f32) ---
spatializer_listener_get_direction :: proc(pListener: ^spatializer_listener) -> vec3f ---
spatializer_listener_set_velocity :: proc(pListener: ^spatializer_listener, x, y, z: f32) ---
spatializer_listener_get_velocity :: proc(pListener: ^spatializer_listener) -> vec3f ---
spatializer_listener_set_speed_of_sound :: proc(pListener: ^spatializer_listener, speedOfSound: f32) ---
spatializer_listener_get_speed_of_sound :: proc(pListener: ^spatializer_listener) -> f32 ---
spatializer_listener_set_world_up :: proc(pListener: ^spatializer_listener, x, y, z: f32) ---
spatializer_listener_get_world_up :: proc(pListener: ^spatializer_listener) -> vec3f ---
spatializer_listener_set_enabled :: proc(pListener: ^spatializer_listener, isEnabled: b32) ---
spatializer_listener_is_enabled :: proc(pListener: ^spatializer_listener) -> b32 ---
}
spatializer_config :: struct {
channelsIn: u32,
channelsOut: u32,
pChannelMapIn: [^]channel,
attenuationModel: attenuation_model,
positioning: positioning,
handedness: handedness, /* Defaults to right. Forward is -1 on the Z axis. In a left handed system, forward is +1 on the Z axis. */
minGain: f32,
maxGain: f32,
minDistance: f32,
maxDistance: f32,
rolloff: f32,
coneInnerAngleInRadians: f32,
coneOuterAngleInRadians: f32,
coneOuterGain: f32,
dopplerFactor: f32, /* Set to 0 to disable doppler effect. */
directionalAttenuationFactor: f32, /* Set to 0 to disable directional attenuation. */
minSpatializationChannelGain: f32, /* The minimal scaling factor to apply to channel gains when accounting for the direction of the sound relative to the listener. Must be in the range of 0..1. Smaller values means more aggressive directional panning, larger values means more subtle directional panning. */
gainSmoothTimeInFrames: u32, /* When the gain of a channel changes during spatialization, the transition will be linearly interpolated over this number of frames. */
}
spatializer :: struct {
channelsIn: u32,
channelsOut: u32,
pChannelMapIn: [^]channel,
attenuationModel: attenuation_model,
positioning: positioning,
handedness: handedness, /* Defaults to right. Forward is -1 on the Z axis. In a left handed system, forward is +1 on the Z axis. */
minGain: f32,
maxGain: f32,
minDistance: f32,
maxDistance: f32,
rolloff: f32,
coneInnerAngleInRadians: f32,
coneOuterAngleInRadians: f32,
coneOuterGain: f32,
dopplerFactor: f32, /* Set to 0 to disable doppler effect. */
directionalAttenuationFactor: f32, /* Set to 0 to disable directional attenuation. */
gainSmoothTimeInFrames: u32, /* When the gain of a channel changes during spatialization, the transition will be linearly interpolated over this number of frames. */
position: atomic_vec3f,
direction: atomic_vec3f,
velocity: atomic_vec3f, /* For doppler effect. */
dopplerPitch: f32, /* Will be updated by ma_spatializer_process_pcm_frames() and can be used by higher level functions to apply a pitch shift for doppler effect. */
minSpatializationChannelGain: f32,
gainer: gainer, /* For smooth gain transitions. */
pNewChannelGainsOut: [^]f32, /* An offset of _pHeap. Used by ma_spatializer_process_pcm_frames() to store new channel gains. The number of elements in this array is equal to config.channelsOut. */
/* Memory management. */
_pHeap: rawptr,
_ownsHeap: b32,
}
@(default_calling_convention="c", link_prefix="ma_")
foreign lib {
spatializer_config_init :: proc(channelsIn, channelsOut: u32) -> spatializer_config ---
spatializer_get_heap_size :: proc(pConfig: ^spatializer_config, pHeapSizeInBytes: ^c.size_t) -> result ---
spatializer_init_preallocated :: proc(pConfig: ^spatializer_config, pHeap: rawptr, pSpatializer: ^spatializer) -> result ---
spatializer_init :: proc(pConfig: ^spatializer_config, pAllocationCallbacks: ^allocation_callbacks, pSpatializer: ^spatializer) -> result ---
spatializer_uninit :: proc(pSpatializer: ^spatializer, pAllocationCallbacks: ^allocation_callbacks) ---
spatializer_process_pcm_frames :: proc(pSpatializer: ^spatializer, pListener: ^spatializer_listener, pFramesOut, pFramesIn: rawptr, frameCount: u64) -> result ---
spatializer_set_master_volume :: proc(pSpatializer: ^spatializer, volume: f32) -> result ---
spatializer_get_master_volume :: proc(pSpatializer: ^spatializer, pVolume: ^f32) -> result ---
spatializer_get_input_channels :: proc(pSpatializer: ^spatializer) -> u32 ---
spatializer_get_output_channels :: proc(pSpatializer: ^spatializer) -> u32 ---
spatializer_set_attenuation_model :: proc(pSpatializer: ^spatializer, attenuationModel: attenuation_model) ---
spatializer_get_attenuation_model :: proc(pSpatializer: ^spatializer) -> attenuation_model ---
spatializer_set_positioning :: proc(pSpatializer: ^spatializer, positioning: positioning) ---
spatializer_get_positioning :: proc(pSpatializer: ^spatializer) -> positioning ---
spatializer_set_rolloff :: proc(pSpatializer: ^spatializer, rolloff: f32) ---
spatializer_get_rolloff :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_min_gain :: proc(pSpatializer: ^spatializer, minGain: f32) ---
spatializer_get_min_gain :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_max_gain :: proc(pSpatializer: ^spatializer, maxGain: f32) ---
spatializer_get_max_gain :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_min_distance :: proc(pSpatializer: ^spatializer, minDistance: f32) ---
spatializer_get_min_distance :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_max_distance :: proc(pSpatializer: ^spatializer, maxDistance: f32) ---
spatializer_get_max_distance :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_cone :: proc(pSpatializer: ^spatializer, innerAngleInRadians, outerAngleInRadians, outerGain: f32) ---
spatializer_get_cone :: proc(pSpatializer: ^spatializer, pInnerAngleInRadians, pOuterAngleInRadians, pOuterGain: ^f32) ---
spatializer_set_doppler_factor :: proc(pSpatializer: ^spatializer, dopplerFactor: f32) ---
spatializer_get_doppler_factor :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_directional_attenuation_factor :: proc(pSpatializer: ^spatializer, directionalAttenuationFactor: f32) ---
spatializer_get_directional_attenuation_factor :: proc(pSpatializer: ^spatializer) -> f32 ---
spatializer_set_position :: proc(pSpatializer: ^spatializer, x, y, z: f32) ---
spatializer_get_position :: proc(pSpatializer: ^spatializer) -> vec3f ---
spatializer_set_direction :: proc(pSpatializer: ^spatializer, x, y, z: f32) ---
spatializer_get_direction :: proc(pSpatializer: ^spatializer) -> vec3f ---
spatializer_set_velocity :: proc(pSpatializer: ^spatializer, x, y, z: f32) ---
spatializer_get_velocity :: proc(pSpatializer: ^spatializer) -> vec3f ---
spatializer_get_relative_position_and_direction :: proc(pSpatializer: ^spatializer, pListener: ^spatializer_listener, pRelativePos, pRelativeDir: ^vec3f) ---
}
|
