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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 |
| (...skipping 10 matching lines...) Expand all Loading... |
| 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 "config.h" | 29 #include "config.h" |
| 30 | 30 |
| 31 #if ENABLE(WEB_AUDIO) | |
| 32 | |
| 33 #include "platform/audio/Cone.h" | 31 #include "platform/audio/Cone.h" |
| 34 #include "wtf/MathExtras.h" | 32 #include "wtf/MathExtras.h" |
| 35 | 33 |
| 36 namespace blink { | 34 namespace blink { |
| 37 | 35 |
| 38 ConeEffect::ConeEffect() | 36 ConeEffect::ConeEffect() |
| 39 : m_innerAngle(360.0) | 37 : m_innerAngle(360.0) |
| 40 , m_outerAngle(360.0) | 38 , m_outerAngle(360.0) |
| 41 , m_outerGain(0.0) | 39 , m_outerGain(0.0) |
| 42 { | 40 { |
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| 74 // Between inner and outer cones | 72 // Between inner and outer cones |
| 75 // inner -> outer, x goes from 0 -> 1 | 73 // inner -> outer, x goes from 0 -> 1 |
| 76 double x = (absAngle - absInnerAngle) / (absOuterAngle - absInnerAngle); | 74 double x = (absAngle - absInnerAngle) / (absOuterAngle - absInnerAngle); |
| 77 gain = (1.0 - x) + m_outerGain * x; | 75 gain = (1.0 - x) + m_outerGain * x; |
| 78 } | 76 } |
| 79 | 77 |
| 80 return gain; | 78 return gain; |
| 81 } | 79 } |
| 82 | 80 |
| 83 } // namespace blink | 81 } // namespace blink |
| 84 | |
| 85 #endif // ENABLE(WEB_AUDIO) | |
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