2 * OpenAL cross platform audio library
3 * Copyright (C) 1999-2010 by authors.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 * Or go to http://www.gnu.org/copyleft/lgpl.html
36 void ComputeAngleGains(const ALCdevice
*device
, ALfloat angle
, ALfloat elevation
, ALfloat ingain
, ALfloat gains
[MAX_OUTPUT_CHANNELS
])
39 sinf(angle
) * cosf(elevation
),
41 -cosf(angle
) * cosf(elevation
)
43 ComputeDirectionalGains(device
, dir
, ingain
, gains
);
46 void ComputeDirectionalGains(const ALCdevice
*device
, const ALfloat dir
[3], ALfloat ingain
, ALfloat gains
[MAX_OUTPUT_CHANNELS
])
48 ALfloat coeffs
[MAX_AMBI_COEFFS
];
50 /* Convert from OpenAL coords to Ambisonics. */
55 coeffs
[0] = 0.7071f
; /* sqrt(1.0 / 2.0) */
56 coeffs
[1] = x
; /* X */
57 coeffs
[2] = y
; /* Y */
58 coeffs
[3] = z
; /* Z */
59 coeffs
[4] = 0.5f
* (3.0f
*z
*z
- 1.0f
); /* 0.5 * (3*Z*Z - 1) */
60 coeffs
[5] = 2.0f
* z
* x
; /* 2*Z*X */
61 coeffs
[6] = 2.0f
* y
* z
; /* 2*Y*Z */
62 coeffs
[7] = x
*x
- y
*y
; /* X*X - Y*Y */
63 coeffs
[8] = 2.0f
* x
* y
; /* 2*X*Y */
64 coeffs
[9] = 0.5f
* z
* (5.0f
*z
*z
- 3.0f
); /* 0.5 * Z * (5*Z*Z - 3) */
65 coeffs
[10] = 0.7262f
* x
* (5.0f
*z
*z
- 1.0f
); /* sqrt(135.0 / 256.0) * X * (5*Z*Z - 1) */
66 coeffs
[11] = 0.7262f
* y
* (5.0f
*z
*z
- 1.0f
); /* sqrt(135.0 / 256.0) * Y * (5*Z*Z - 1) */
67 coeffs
[12] = 2.5981f
* z
* (x
*x
- y
*y
); /* sqrt(27.0 / 4.0) * Z * (X*X - Y*Y) */
68 coeffs
[13] = 5.1962f
* x
* y
* z
; /* sqrt(27) * X * Y * Z */
69 coeffs
[14] = x
* (x
*x
- 3.0f
*y
*y
); /* X * (X*X - 3*Y*Y) */
70 coeffs
[15] = y
* (3.0f
*x
*x
- y
*y
); /* Y * (3*X*X - Y*Y) */
72 for(i
= 0;i
< MAX_OUTPUT_CHANNELS
;i
++)
74 for(i
= 0;i
< device
->NumChannels
;i
++)
76 for(j
= 0;j
< MAX_AMBI_COEFFS
;j
++)
77 gains
[i
] += device
->Channel
[i
].HOACoeff
[j
]*coeffs
[j
];
78 gains
[i
] = maxf(gains
[i
], 0.0f
) * ingain
;
82 void ComputeAmbientGains(const ALCdevice
*device
, ALfloat ingain
, ALfloat gains
[MAX_OUTPUT_CHANNELS
])
86 for(i
= 0;i
< MAX_OUTPUT_CHANNELS
;i
++)
88 for(i
= 0;i
< device
->NumChannels
;i
++)
90 // The W coefficients are based on a mathematical average of the
91 // output, scaled by sqrt(2) to compensate for FuMa-style Ambisonics
92 // scaling the W channel input by sqrt(0.5). The square root of the
93 // base average provides for a more perceptual average volume, better
94 // suited to non-directional gains.
95 gains
[i
] = sqrtf(device
->Channel
[i
].HOACoeff
[0]/1.4142f
)*1.4142f
* ingain
;
99 void ComputeBFormatGains(const ALCdevice
*device
, const ALfloat mtx
[4], ALfloat ingain
, ALfloat gains
[MAX_OUTPUT_CHANNELS
])
103 for(i
= 0;i
< MAX_OUTPUT_CHANNELS
;i
++)
105 for(i
= 0;i
< device
->NumChannels
;i
++)
108 gains
[i
] += device
->Channel
[i
].FOACoeff
[j
] * mtx
[j
];
114 DECL_CONST
static inline const char *GetLabelFromChannel(enum Channel channel
)
118 case FrontLeft
: return "front-left";
119 case FrontRight
: return "front-right";
120 case FrontCenter
: return "front-center";
121 case LFE
: return "lfe";
122 case BackLeft
: return "back-left";
123 case BackRight
: return "back-right";
124 case BackCenter
: return "back-center";
125 case SideLeft
: return "side-left";
126 case SideRight
: return "side-right";
128 case TopCenter
: return "top-center";
129 case BottomCenter
: return "bottom-center";
130 case TopFrontLeft
: return "top-front-left";
131 case TopFrontRight
: return "top-front-right";
132 case TopBackLeft
: return "top-back-left";
133 case TopBackRight
: return "top-back-right";
134 case BottomFrontLeft
: return "bottom-front-left";
135 case BottomFrontRight
: return "bottom-front-right";
136 case BottomBackLeft
: return "bottom-back-left";
137 case BottomBackRight
: return "bottom-back-right";
139 case InvalidChannel
: break;
145 typedef struct ChannelMap
{
146 enum Channel ChanName
;
147 ChannelConfig Config
;
150 static void SetChannelMap(ALCdevice
*device
, const ChannelMap
*chanmap
, size_t count
)
154 for(i
= 0;i
< MAX_OUTPUT_CHANNELS
&& device
->ChannelName
[i
] != InvalidChannel
;i
++)
156 if(device
->ChannelName
[i
] == LFE
)
158 for(j
= 0;j
< MAX_AMBI_COEFFS
;j
++)
159 device
->Channel
[i
].HOACoeff
[j
] = 0.0f
;
161 device
->Channel
[i
].FOACoeff
[j
] = 0.0f
;
165 for(j
= 0;j
< count
;j
++)
167 if(device
->ChannelName
[i
] == chanmap
[j
].ChanName
)
169 device
->Channel
[i
] = chanmap
[j
].Config
;
174 ERR("Failed to match %s channel ("SZFMT
") in config\n", GetLabelFromChannel(device
->ChannelName
[i
]), i
);
176 device
->NumChannels
= i
;
179 static bool LoadChannelSetup(ALCdevice
*device
)
181 static const enum Channel mono_chans
[1] = {
183 }, stereo_chans
[2] = {
184 FrontLeft
, FrontRight
186 FrontLeft
, FrontRight
,
188 }, surround51_chans
[5] = {
189 FrontLeft
, FrontRight
, FrontCenter
,
191 }, surround51rear_chans
[5] = {
192 FrontLeft
, FrontRight
, FrontCenter
,
194 }, surround61_chans
[6] = {
195 FrontLeft
, FrontRight
,
196 FrontCenter
, BackCenter
,
198 }, surround71_chans
[7] = {
199 FrontLeft
, FrontRight
, FrontCenter
,
203 ChannelMap chanmap
[MAX_OUTPUT_CHANNELS
];
204 const enum Channel
*channels
= NULL
;
205 const char *layout
= NULL
;
209 switch(device
->FmtChans
)
213 channels
= mono_chans
;
214 count
= COUNTOF(mono_chans
);
218 channels
= stereo_chans
;
219 count
= COUNTOF(stereo_chans
);
223 channels
= quad_chans
;
224 count
= COUNTOF(quad_chans
);
227 layout
= "surround51";
228 channels
= surround51_chans
;
229 count
= COUNTOF(surround51_chans
);
232 layout
= "surround51rear";
233 channels
= surround51rear_chans
;
234 count
= COUNTOF(surround51rear_chans
);
237 layout
= "surround61";
238 channels
= surround61_chans
;
239 count
= COUNTOF(surround61_chans
);
242 layout
= "surround71";
243 channels
= surround71_chans
;
244 count
= COUNTOF(surround71_chans
);
253 snprintf(name
, sizeof(name
), "%s/enable", layout
);
254 if(!GetConfigValueBool("layouts", name
, 0))
258 for(i
= 0;i
< count
;i
++)
260 const char *channame
;
265 chanmap
[i
].ChanName
= channels
[i
];
266 channame
= GetLabelFromChannel(channels
[i
]);
268 snprintf(chanlayout
, sizeof(chanlayout
), "%s/%s", layout
, channame
);
269 if(!ConfigValueStr("layouts", chanlayout
, &value
))
271 ERR("Missing channel %s\n", channame
);
274 props
= sscanf(value
, " %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f ; %f %f %f %f",
275 &chanmap
[i
].Config
.HOACoeff
[0], &chanmap
[i
].Config
.HOACoeff
[1], &chanmap
[i
].Config
.HOACoeff
[2],
276 &chanmap
[i
].Config
.HOACoeff
[3], &chanmap
[i
].Config
.HOACoeff
[4], &chanmap
[i
].Config
.HOACoeff
[5],
277 &chanmap
[i
].Config
.HOACoeff
[6], &chanmap
[i
].Config
.HOACoeff
[7], &chanmap
[i
].Config
.HOACoeff
[8],
278 &chanmap
[i
].Config
.HOACoeff
[9], &chanmap
[i
].Config
.HOACoeff
[10], &chanmap
[i
].Config
.HOACoeff
[11],
279 &chanmap
[i
].Config
.HOACoeff
[12], &chanmap
[i
].Config
.HOACoeff
[13], &chanmap
[i
].Config
.HOACoeff
[14],
280 &chanmap
[i
].Config
.HOACoeff
[15], &chanmap
[i
].Config
.FOACoeff
[0], &chanmap
[i
].Config
.FOACoeff
[1],
281 &chanmap
[i
].Config
.FOACoeff
[2], &chanmap
[i
].Config
.FOACoeff
[3]);
284 ERR("Failed to parse %s channel's properties\n", channame
);
290 ERR("Failed to parse %s channel's elements (expected 20, got %d)\n", channame
, props
);
294 SetChannelMap(device
, chanmap
, count
);
298 ALvoid
aluInitPanning(ALCdevice
*device
)
300 static const ChannelMap MonoCfg
[1] = {
301 { FrontCenter
, { { 1.4142f
}, { 1.4142f
} } },
303 { FrontLeft
, { { 0.7071f
, 0.0f
, 0.5f
, 0.0f
}, { 0.7071f
, 0.0f
, 0.5f
, 0.0f
} } },
304 { FrontRight
, { { 0.7071f
, 0.0f
, -0.5f
, 0.0f
}, { 0.7071f
, 0.0f
, -0.5f
, 0.0f
} } },
306 { FrontLeft
, { { 0.353558f
, 0.306181f
, 0.306192f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, 0.117183f
}, { 0.353553f
, 0.250000f
, 0.250000f
, 0.0f
} } },
307 { FrontRight
, { { 0.353558f
, 0.306181f
, -0.306192f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, -0.117183f
}, { 0.353553f
, 0.250000f
, -0.250000f
, 0.0f
} } },
308 { BackLeft
, { { 0.353543f
, -0.306192f
, 0.306181f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, -0.117193f
}, { 0.353553f
, -0.250000f
, 0.250000f
, 0.0f
} } },
309 { BackRight
, { { 0.353543f
, -0.306192f
, -0.306181f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, 0.117193f
}, { 0.353553f
, -0.250000f
, -0.250000f
, 0.0f
} } },
311 { FrontLeft
, { { 0.208954f
, 0.212846f
, 0.238350f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.017738f
, 0.204014f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.051023f
, 0.047490f
}, { 0.208954f
, 0.162905f
, 0.182425f
, 0.0f
} } },
312 { FrontRight
, { { 0.208954f
, 0.212846f
, -0.238350f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.017738f
, -0.204014f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.051023f
, -0.047490f
}, { 0.208954f
, 0.162905f
, -0.182425f
, 0.0f
} } },
313 { FrontCenter
, { { 0.109403f
, 0.179490f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.142031f
, -0.000002f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.072024f
, -0.000001f
}, { 0.109403f
, 0.137375f
, 0.000000f
, 0.0f
} } },
314 { SideLeft
, { { 0.470936f
, -0.369626f
, 0.349386f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.031375f
, -0.058144f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.007119f
, -0.043968f
}, { 0.470934f
, -0.282903f
, 0.267406f
, 0.0f
} } },
315 { SideRight
, { { 0.470936f
, -0.369626f
, -0.349386f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.031375f
, 0.058144f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.007119f
, 0.043968f
}, { 0.470934f
, -0.282903f
, -0.267406f
, 0.0f
} } },
317 { FrontLeft
, { { 0.208954f
, 0.212846f
, 0.238350f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.017738f
, 0.204014f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.051023f
, 0.047490f
}, { 0.208954f
, 0.162905f
, 0.182425f
, 0.0f
} } },
318 { FrontRight
, { { 0.208954f
, 0.212846f
, -0.238350f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.017738f
, -0.204014f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.051023f
, -0.047490f
}, { 0.208954f
, 0.162905f
, -0.182425f
, 0.0f
} } },
319 { FrontCenter
, { { 0.109403f
, 0.179490f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.142031f
, -0.000002f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.072024f
, -0.000001f
}, { 0.109403f
, 0.137375f
, 0.000000f
, 0.0f
} } },
320 { BackLeft
, { { 0.470936f
, -0.369626f
, 0.349386f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.031375f
, -0.058144f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.007119f
, -0.043968f
}, { 0.470934f
, -0.282903f
, 0.267406f
, 0.0f
} } },
321 { BackRight
, { { 0.470936f
, -0.369626f
, -0.349386f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.031375f
, 0.058144f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.007119f
, 0.043968f
}, { 0.470934f
, -0.282903f
, -0.267406f
, 0.0f
} } },
323 { FrontLeft
, { { 0.167065f
, 0.200583f
, 0.172695f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.029855f
, 0.186407f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.039241f
, 0.068910f
}, { 0.167065f
, 0.153519f
, 0.132175f
, 0.0f
} } },
324 { FrontRight
, { { 0.167065f
, 0.200583f
, -0.172695f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.029855f
, -0.186407f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.039241f
, -0.068910f
}, { 0.167065f
, 0.153519f
, -0.132175f
, 0.0f
} } },
325 { FrontCenter
, { { 0.109403f
, 0.179490f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.142031f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.072024f
, -0.000001f
}, { 0.109403f
, 0.137375f
, 0.000000f
, 0.0f
} } },
326 { BackCenter
, { { 0.353556f
, -0.461940f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.165723f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, 0.000005f
}, { 0.353556f
, -0.353554f
, 0.000000f
, 0.0f
} } },
327 { SideLeft
, { { 0.289151f
, -0.081301f
, 0.401292f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.188208f
, -0.071420f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.010099f
, -0.032897f
}, { 0.289151f
, -0.062225f
, 0.307136f
, 0.0f
} } },
328 { SideRight
, { { 0.289151f
, -0.081301f
, -0.401292f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.188208f
, 0.071420f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.010099f
, 0.032897f
}, { 0.289151f
, -0.062225f
, -0.307136f
, 0.0f
} } },
330 { FrontLeft
, { { 0.167065f
, 0.200583f
, 0.172695f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.029855f
, 0.186407f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.039241f
, 0.068910f
}, { 0.167065f
, 0.153519f
, 0.132175f
, 0.0f
} } },
331 { FrontRight
, { { 0.167065f
, 0.200583f
, -0.172695f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.029855f
, -0.186407f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.039241f
, -0.068910f
}, { 0.167065f
, 0.153519f
, -0.132175f
, 0.0f
} } },
332 { FrontCenter
, { { 0.109403f
, 0.179490f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.142031f
, 0.000000f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.072024f
, 0.000000f
}, { 0.109403f
, 0.137375f
, 0.000000f
, 0.0f
} } },
333 { BackLeft
, { { 0.224752f
, -0.295009f
, 0.170325f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.105349f
, -0.182473f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, 0.065799f
}, { 0.224752f
, -0.225790f
, 0.130361f
, 0.0f
} } },
334 { BackRight
, { { 0.224752f
, -0.295009f
, -0.170325f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.105349f
, 0.182473f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, -0.065799f
}, { 0.224752f
, -0.225790f
, -0.130361f
, 0.0f
} } },
335 { SideLeft
, { { 0.224739f
, 0.000002f
, 0.340644f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.210697f
, 0.000002f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, -0.065795f
}, { 0.224739f
, 0.000000f
, 0.260717f
, 0.0f
} } },
336 { SideRight
, { { 0.224739f
, 0.000002f
, -0.340644f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, -0.210697f
, -0.000002f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.0f
, 0.000000f
, 0.065795f
}, { 0.224739f
, 0.000000f
, -0.260717f
, 0.0f
} } },
337 }, CubeDiamond
[14] = {
338 { SideLeft
, { { 0.130137f
, -0.000013f
, 0.207620f
, 0.000001f
, -0.081895f
, 0.000001f
, 0.000002f
, -0.144357f
, -0.000015f
, -0.000002f
, 0.000001f
, -0.032339f
, -0.000000f
, 0.000001f
, 0.000005f
, -0.057583f
}, { 0.130137f
, -0.000009f
, 0.139199f
, 0.000001f
} } },
339 { FrontCenter
, { { 0.130131f
, 0.207613f
, -0.000007f
, 0.000001f
, -0.081898f
, 0.000001f
, -0.000000f
, 0.144354f
, -0.000010f
, -0.000002f
, -0.032343f
, 0.000006f
, -0.000000f
, -0.000001f
, 0.057583f
, -0.000004f
}, { 0.130131f
, 0.139195f
, -0.000005f
, 0.000001f
} } },
340 { SideRight
, { { 0.130140f
, 0.000001f
, -0.207624f
, -0.000001f
, -0.081900f
, 0.000005f
, 0.000001f
, -0.144357f
, -0.000002f
, 0.000002f
, -0.000004f
, 0.032342f
, -0.000000f
, -0.000005f
, -0.000002f
, 0.057580f
}, { 0.130140f
, 0.000000f
, -0.139202f
, -0.000000f
} } },
341 { BackCenter
, { { 0.130142f
, -0.207624f
, 0.000006f
, -0.000010f
, -0.081897f
, 0.000011f
, 0.000005f
, 0.144354f
, -0.000006f
, 0.000004f
, 0.032340f
, 0.000000f
, -0.000002f
, -0.000005f
, -0.057579f
, 0.000003f
}, { 0.130142f
, -0.139202f
, 0.000004f
, -0.000007f
} } },
342 { TopCenter
, { { 0.072579f
, 0.000006f
, 0.000001f
, 0.123524f
, 0.126630f
, 0.000008f
, 0.000001f
, -0.000002f
, 0.000001f
, 0.070290f
, 0.000005f
, 0.000001f
, -0.000002f
, 0.000001f
, -0.000001f
, 0.000002f
}, { 0.072579f
, 0.000004f
, 0.000001f
, 0.082817f
} } },
343 { BottomCenter
, { { 0.072577f
, -0.000008f
, -0.000004f
, -0.123522f
, 0.126628f
, 0.000012f
, 0.000005f
, -0.000001f
, 0.000002f
, -0.070291f
, -0.000008f
, -0.000002f
, 0.000001f
, -0.000002f
, 0.000000f
, -0.000001f
}, { 0.072577f
, -0.000006f
, -0.000003f
, -0.082815f
} } },
344 { TopFrontLeft
, { { 0.176238f
, 0.156939f
, 0.156950f
, 0.149964f
, 0.006362f
, 0.101960f
, 0.101968f
, -0.000003f
, 0.117690f
, -0.020696f
, 0.018718f
, 0.018723f
, 0.000002f
, 0.038069f
, -0.025485f
, 0.025484f
}, { 0.176238f
, 0.105220f
, 0.105227f
, 0.100544f
} } },
345 { TopFrontRight
, { { 0.176240f
, 0.156940f
, -0.156956f
, 0.149960f
, 0.006356f
, 0.101955f
, -0.101970f
, -0.000007f
, -0.117691f
, -0.020700f
, 0.018719f
, -0.018722f
, -0.000003f
, -0.038066f
, -0.025485f
, -0.025485f
}, { 0.176240f
, 0.105220f
, -0.105231f
, 0.100541f
} } },
346 { TopBackLeft
, { { 0.176245f
, -0.156957f
, 0.156942f
, 0.149971f
, 0.006355f
, -0.101977f
, 0.101961f
, 0.000003f
, -0.117684f
, -0.020701f
, -0.018724f
, 0.018716f
, 0.000001f
, -0.038069f
, 0.025482f
, 0.025479f
}, { 0.176245f
, -0.105232f
, 0.105222f
, 0.100548f
} } },
347 { TopBackRight
, { { 0.176238f
, -0.156944f
, -0.156942f
, 0.149972f
, 0.006363f
, -0.101976f
, -0.101964f
, -0.000005f
, 0.117687f
, -0.020701f
, -0.018726f
, -0.018716f
, 0.000000f
, 0.038072f
, 0.025486f
, -0.025481f
}, { 0.176238f
, -0.105224f
, -0.105222f
, 0.100549f
} } },
348 { BottomFrontLeft
, { { 0.176248f
, 0.156943f
, 0.156950f
, -0.149981f
, 0.006371f
, -0.101969f
, -0.101967f
, -0.000008f
, 0.117685f
, 0.020695f
, 0.018723f
, 0.018718f
, 0.000000f
, -0.038067f
, -0.025486f
, 0.025479f
}, { 0.176248f
, 0.105223f
, 0.105227f
, -0.100555f
} } },
349 { BottomFrontRight
, { { 0.176236f
, 0.156947f
, -0.156945f
, -0.149961f
, 0.006353f
, -0.101971f
, 0.101964f
, -0.000002f
, -0.117689f
, 0.020704f
, 0.018723f
, -0.018718f
, -0.000001f
, 0.038071f
, -0.025484f
, -0.025482f
}, { 0.176236f
, 0.105225f
, -0.105224f
, -0.100542f
} } },
350 { BottomBackLeft
, { { 0.176236f
, -0.156936f
, 0.156952f
, -0.149964f
, 0.006358f
, 0.101962f
, -0.101976f
, -0.000005f
, -0.117687f
, 0.020707f
, -0.018720f
, 0.018725f
, 0.000001f
, 0.038071f
, 0.025483f
, 0.025485f
}, { 0.176236f
, -0.105218f
, 0.105229f
, -0.100543f
} } },
351 { BottomBackRight
, { { 0.176256f
, -0.156956f
, -0.156954f
, -0.149974f
, 0.006366f
, 0.101960f
, 0.101964f
, 0.000003f
, 0.117692f
, 0.020690f
, -0.018718f
, -0.018722f
, 0.000001f
, -0.038064f
, 0.025483f
, -0.025484f
}, { 0.176256f
, -0.105232f
, -0.105230f
, -0.100550f
} } },
353 const ChannelMap
*chanmap
= NULL
;
356 memset(device
->Channel
, 0, sizeof(device
->Channel
));
357 device
->NumChannels
= 0;
361 static const struct {
362 enum Channel channel
;
365 } VirtualChans
[14] = {
366 { FrontCenter
, DEG2RAD( 0.0f
), DEG2RAD( 0.0f
) },
367 { BackCenter
, DEG2RAD( 0.0f
), DEG2RAD(-180.0f
) },
368 { SideLeft
, DEG2RAD( 0.0f
), DEG2RAD( -90.0f
) },
369 { SideRight
, DEG2RAD( 0.0f
), DEG2RAD( 90.0f
) },
370 { TopFrontLeft
, DEG2RAD( 45.0f
), DEG2RAD( -45.0f
) },
371 { TopFrontRight
, DEG2RAD( 45.0f
), DEG2RAD( 45.0f
) },
372 { TopBackLeft
, DEG2RAD( 45.0f
), DEG2RAD(-135.0f
) },
373 { TopBackRight
, DEG2RAD( 45.0f
), DEG2RAD( 135.0f
) },
374 { BottomFrontLeft
, DEG2RAD(-45.0f
), DEG2RAD( -45.0f
) },
375 { BottomFrontRight
, DEG2RAD(-45.0f
), DEG2RAD( 45.0f
) },
376 { BottomBackLeft
, DEG2RAD(-45.0f
), DEG2RAD(-135.0f
) },
377 { BottomBackRight
, DEG2RAD(-45.0f
), DEG2RAD( 135.0f
) },
378 { TopCenter
, DEG2RAD( 90.0f
), DEG2RAD( 0.0f
) },
379 { BottomCenter
, DEG2RAD(-90.0f
), DEG2RAD( 0.0f
) },
383 count
= COUNTOF(CubeDiamond
);
384 chanmap
= CubeDiamond
;
386 for(i
= 0;i
< count
;i
++)
387 device
->ChannelName
[i
] = VirtualChans
[i
].channel
;
388 SetChannelMap(device
, chanmap
, count
);
389 for(i
= 0;i
< count
;i
++)
390 GetLerpedHrtfCoeffs(device
->Hrtf
, VirtualChans
[i
].elevation
, VirtualChans
[i
].angle
,
391 device
->Hrtf_Params
[i
].Coeffs
, device
->Hrtf_Params
[i
].Delay
);
396 if(LoadChannelSetup(device
))
399 switch(device
->FmtChans
)
402 count
= COUNTOF(MonoCfg
);
407 count
= COUNTOF(StereoCfg
);
412 count
= COUNTOF(QuadCfg
);
417 count
= COUNTOF(X51SideCfg
);
418 chanmap
= X51SideCfg
;
422 count
= COUNTOF(X51RearCfg
);
423 chanmap
= X51RearCfg
;
427 count
= COUNTOF(X61Cfg
);
432 count
= COUNTOF(X71Cfg
);
437 SetChannelMap(device
, chanmap
, count
);