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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 */ | 27 */ |
28 | 28 |
29 #include "platform/audio/HRTFDatabase.h" | 29 #include "platform/audio/HRTFDatabase.h" |
30 | 30 |
31 #if ENABLE(WEB_AUDIO) | |
32 | |
33 #include "wtf/MathExtras.h" | 31 #include "wtf/MathExtras.h" |
34 | 32 |
35 namespace blink { | 33 namespace blink { |
36 | 34 |
37 const int HRTFDatabase::MinElevation = -45; | 35 const int HRTFDatabase::MinElevation = -45; |
38 const int HRTFDatabase::MaxElevation = 90; | 36 const int HRTFDatabase::MaxElevation = 90; |
39 const unsigned HRTFDatabase::RawElevationAngleSpacing = 15; | 37 const unsigned HRTFDatabase::RawElevationAngleSpacing = 15; |
40 const unsigned HRTFDatabase::NumberOfRawElevations = 10; // -45 -> +90 (each 15
degrees) | 38 const unsigned HRTFDatabase::NumberOfRawElevations = 10; // -45 -> +90 (each 15
degrees) |
41 const unsigned HRTFDatabase::InterpolationFactor = 1; | 39 const unsigned HRTFDatabase::InterpolationFactor = 1; |
42 const unsigned HRTFDatabase::NumberOfTotalElevations = NumberOfRawElevations * I
nterpolationFactor; | 40 const unsigned HRTFDatabase::NumberOfTotalElevations = NumberOfRawElevations * I
nterpolationFactor; |
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109 { | 107 { |
110 // Clamp to allowed range. | 108 // Clamp to allowed range. |
111 elevationAngle = clampTo<double, double>(elevationAngle, MinElevation, MaxEl
evation); | 109 elevationAngle = clampTo<double, double>(elevationAngle, MinElevation, MaxEl
evation); |
112 | 110 |
113 unsigned elevationIndex = static_cast<int>(InterpolationFactor * (elevationA
ngle - MinElevation) / RawElevationAngleSpacing); | 111 unsigned elevationIndex = static_cast<int>(InterpolationFactor * (elevationA
ngle - MinElevation) / RawElevationAngleSpacing); |
114 return elevationIndex; | 112 return elevationIndex; |
115 } | 113 } |
116 | 114 |
117 } // namespace blink | 115 } // namespace blink |
118 | 116 |
119 #endif // ENABLE(WEB_AUDIO) | |
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