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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 16 matching lines...) Expand all Loading... |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #include "config.h" | 29 #include "config.h" |
| 30 #if ENABLE(WEB_AUDIO) | 30 #if ENABLE(WEB_AUDIO) |
| 31 #include "modules/webaudio/ChannelMergerNode.h" | 31 #include "modules/webaudio/ChannelMergerNode.h" |
| 32 | 32 |
| 33 #include "bindings/core/v8/ExceptionMessages.h" | 33 #include "bindings/core/v8/ExceptionMessages.h" |
| 34 #include "bindings/core/v8/ExceptionState.h" | 34 #include "bindings/core/v8/ExceptionState.h" |
| 35 #include "core/dom/ExceptionCode.h" | 35 #include "core/dom/ExceptionCode.h" |
| 36 #include "core/dom/ExecutionContext.h" | 36 #include "core/dom/ExecutionContext.h" |
| 37 #include "modules/webaudio/AudioContext.h" | 37 #include "modules/webaudio/AbstractAudioContext.h" |
| 38 #include "modules/webaudio/AudioNodeInput.h" | 38 #include "modules/webaudio/AudioNodeInput.h" |
| 39 #include "modules/webaudio/AudioNodeOutput.h" | 39 #include "modules/webaudio/AudioNodeOutput.h" |
| 40 | 40 |
| 41 | 41 |
| 42 namespace blink { | 42 namespace blink { |
| 43 | 43 |
| 44 ChannelMergerHandler::ChannelMergerHandler(AudioNode& node, float sampleRate, un
signed numberOfInputs) | 44 ChannelMergerHandler::ChannelMergerHandler(AudioNode& node, float sampleRate, un
signed numberOfInputs) |
| 45 : AudioHandler(NodeTypeChannelMerger, node, sampleRate) | 45 : AudioHandler(NodeTypeChannelMerger, node, sampleRate) |
| 46 { | 46 { |
| 47 // These properties are fixed for the node and cannot be changed by user. | 47 // These properties are fixed for the node and cannot be changed by user. |
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| 90 } else { | 90 } else { |
| 91 // If input is unconnected, fill zeros in the channel. | 91 // If input is unconnected, fill zeros in the channel. |
| 92 outputChannel->zero(); | 92 outputChannel->zero(); |
| 93 } | 93 } |
| 94 } | 94 } |
| 95 } | 95 } |
| 96 | 96 |
| 97 void ChannelMergerHandler::setChannelCount(unsigned long channelCount, Exception
State& exceptionState) | 97 void ChannelMergerHandler::setChannelCount(unsigned long channelCount, Exception
State& exceptionState) |
| 98 { | 98 { |
| 99 ASSERT(isMainThread()); | 99 ASSERT(isMainThread()); |
| 100 AudioContext::AutoLocker locker(context()); | 100 AbstractAudioContext::AutoLocker locker(context()); |
| 101 | 101 |
| 102 // channelCount must be 1. | 102 // channelCount must be 1. |
| 103 if (channelCount != 1) { | 103 if (channelCount != 1) { |
| 104 exceptionState.throwDOMException( | 104 exceptionState.throwDOMException( |
| 105 InvalidStateError, | 105 InvalidStateError, |
| 106 "ChannelMerger: channelCount cannot be changed from 1"); | 106 "ChannelMerger: channelCount cannot be changed from 1"); |
| 107 } | 107 } |
| 108 } | 108 } |
| 109 | 109 |
| 110 void ChannelMergerHandler::setChannelCountMode(const String& mode, ExceptionStat
e& exceptionState) | 110 void ChannelMergerHandler::setChannelCountMode(const String& mode, ExceptionStat
e& exceptionState) |
| 111 { | 111 { |
| 112 ASSERT(isMainThread()); | 112 ASSERT(isMainThread()); |
| 113 AudioContext::AutoLocker locker(context()); | 113 AbstractAudioContext::AutoLocker locker(context()); |
| 114 | 114 |
| 115 // channcelCountMode must be 'explicit'. | 115 // channcelCountMode must be 'explicit'. |
| 116 if (mode != "explicit") { | 116 if (mode != "explicit") { |
| 117 exceptionState.throwDOMException( | 117 exceptionState.throwDOMException( |
| 118 InvalidStateError, | 118 InvalidStateError, |
| 119 "ChannelMerger: channelCountMode cannot be changed from 'explicit'")
; | 119 "ChannelMerger: channelCountMode cannot be changed from 'explicit'")
; |
| 120 } | 120 } |
| 121 } | 121 } |
| 122 | 122 |
| 123 // ---------------------------------------------------------------- | 123 // ---------------------------------------------------------------- |
| 124 | 124 |
| 125 ChannelMergerNode::ChannelMergerNode(AudioContext& context, float sampleRate, un
signed numberOfInputs) | 125 ChannelMergerNode::ChannelMergerNode(AbstractAudioContext& context, float sample
Rate, unsigned numberOfInputs) |
| 126 : AudioNode(context) | 126 : AudioNode(context) |
| 127 { | 127 { |
| 128 setHandler(ChannelMergerHandler::create(*this, sampleRate, numberOfInputs)); | 128 setHandler(ChannelMergerHandler::create(*this, sampleRate, numberOfInputs)); |
| 129 } | 129 } |
| 130 | 130 |
| 131 ChannelMergerNode* ChannelMergerNode::create(AudioContext& context, float sample
Rate, unsigned numberOfInputs) | 131 ChannelMergerNode* ChannelMergerNode::create(AbstractAudioContext& context, floa
t sampleRate, unsigned numberOfInputs) |
| 132 { | 132 { |
| 133 if (!numberOfInputs || numberOfInputs > AudioContext::maxNumberOfChannels()) | 133 if (!numberOfInputs || numberOfInputs > AbstractAudioContext::maxNumberOfCha
nnels()) |
| 134 return nullptr; | 134 return nullptr; |
| 135 return new ChannelMergerNode(context, sampleRate, numberOfInputs); | 135 return new ChannelMergerNode(context, sampleRate, numberOfInputs); |
| 136 } | 136 } |
| 137 | 137 |
| 138 } // namespace blink | 138 } // namespace blink |
| 139 | 139 |
| 140 #endif // ENABLE(WEB_AUDIO) | 140 #endif // ENABLE(WEB_AUDIO) |
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