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Side by Side Diff: Source/modules/webaudio/ChannelMergerNode.cpp

Issue 20300002: Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core) (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 5 months ago
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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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37 #include "modules/webaudio/AudioNodeOutput.h" 37 #include "modules/webaudio/AudioNodeOutput.h"
38 38
39 const unsigned DefaultNumberOfOutputChannels = 1; 39 const unsigned DefaultNumberOfOutputChannels = 1;
40 40
41 namespace WebCore { 41 namespace WebCore {
42 42
43 PassRefPtr<ChannelMergerNode> ChannelMergerNode::create(AudioContext* context, f loat sampleRate, unsigned numberOfInputs) 43 PassRefPtr<ChannelMergerNode> ChannelMergerNode::create(AudioContext* context, f loat sampleRate, unsigned numberOfInputs)
44 { 44 {
45 if (!numberOfInputs || numberOfInputs > AudioContext::maxNumberOfChannels()) 45 if (!numberOfInputs || numberOfInputs > AudioContext::maxNumberOfChannels())
46 return 0; 46 return 0;
47 47
48 return adoptRef(new ChannelMergerNode(context, sampleRate, numberOfInputs)); 48 return adoptRef(new ChannelMergerNode(context, sampleRate, numberOfInputs));
49 } 49 }
50 50
51 ChannelMergerNode::ChannelMergerNode(AudioContext* context, float sampleRate, un signed numberOfInputs) 51 ChannelMergerNode::ChannelMergerNode(AudioContext* context, float sampleRate, un signed numberOfInputs)
52 : AudioNode(context, sampleRate) 52 : AudioNode(context, sampleRate)
53 , m_desiredNumberOfOutputChannels(DefaultNumberOfOutputChannels) 53 , m_desiredNumberOfOutputChannels(DefaultNumberOfOutputChannels)
54 { 54 {
55 ScriptWrappable::init(this); 55 ScriptWrappable::init(this);
56 // Create the requested number of inputs. 56 // Create the requested number of inputs.
57 for (unsigned i = 0; i < numberOfInputs; ++i) 57 for (unsigned i = 0; i < numberOfInputs; ++i)
58 addInput(adoptPtr(new AudioNodeInput(this))); 58 addInput(adoptPtr(new AudioNodeInput(this)));
59 59
60 addOutput(adoptPtr(new AudioNodeOutput(this, 1))); 60 addOutput(adoptPtr(new AudioNodeOutput(this, 1)));
61 setNodeType(NodeTypeChannelMerger); 61 setNodeType(NodeTypeChannelMerger);
62 initialize(); 62 initialize();
63 } 63 }
64 64
65 void ChannelMergerNode::process(size_t framesToProcess) 65 void ChannelMergerNode::process(size_t framesToProcess)
66 { 66 {
67 AudioNodeOutput* output = this->output(0); 67 AudioNodeOutput* output = this->output(0);
68 ASSERT(output); 68 ASSERT(output);
69 ASSERT_UNUSED(framesToProcess, framesToProcess == output->bus()->length()); 69 ASSERT_UNUSED(framesToProcess, framesToProcess == output->bus()->length());
70 70
71 // Output bus not updated yet, so just output silence. 71 // Output bus not updated yet, so just output silence.
72 if (m_desiredNumberOfOutputChannels != output->numberOfChannels()) { 72 if (m_desiredNumberOfOutputChannels != output->numberOfChannels()) {
73 output->bus()->zero(); 73 output->bus()->zero();
74 return; 74 return;
75 } 75 }
76 76
77 // Merge all the channels from all the inputs into one output. 77 // Merge all the channels from all the inputs into one output.
78 unsigned outputChannelIndex = 0; 78 unsigned outputChannelIndex = 0;
79 for (unsigned i = 0; i < numberOfInputs(); ++i) { 79 for (unsigned i = 0; i < numberOfInputs(); ++i) {
80 AudioNodeInput* input = this->input(i); 80 AudioNodeInput* input = this->input(i);
81 if (input->isConnected()) { 81 if (input->isConnected()) {
82 unsigned numberOfInputChannels = input->bus()->numberOfChannels(); 82 unsigned numberOfInputChannels = input->bus()->numberOfChannels();
83 83
84 // Merge channels from this particular input. 84 // Merge channels from this particular input.
85 for (unsigned j = 0; j < numberOfInputChannels; ++j) { 85 for (unsigned j = 0; j < numberOfInputChannels; ++j) {
86 AudioChannel* inputChannel = input->bus()->channel(j); 86 AudioChannel* inputChannel = input->bus()->channel(j);
87 AudioChannel* outputChannel = output->bus()->channel(outputChann elIndex); 87 AudioChannel* outputChannel = output->bus()->channel(outputChann elIndex);
88 outputChannel->copyFrom(inputChannel); 88 outputChannel->copyFrom(inputChannel);
89 89
90 ++outputChannelIndex; 90 ++outputChannelIndex;
91 } 91 }
92 } 92 }
93 } 93 }
94 94
95 ASSERT(outputChannelIndex == output->numberOfChannels()); 95 ASSERT(outputChannelIndex == output->numberOfChannels());
96 } 96 }
97 97
98 void ChannelMergerNode::reset() 98 void ChannelMergerNode::reset()
99 { 99 {
100 } 100 }
101 101
102 // Any time a connection or disconnection happens on any of our inputs, we poten tially need to change the 102 // Any time a connection or disconnection happens on any of our inputs, we poten tially need to change the
103 // number of channels of our output. 103 // number of channels of our output.
104 void ChannelMergerNode::checkNumberOfChannelsForInput(AudioNodeInput* input) 104 void ChannelMergerNode::checkNumberOfChannelsForInput(AudioNodeInput* input)
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121 // channels because of tryLocks() in the context's updating system. So recor d the new number of 121 // channels because of tryLocks() in the context's updating system. So recor d the new number of
122 // output channels here. 122 // output channels here.
123 m_desiredNumberOfOutputChannels = numberOfOutputChannels; 123 m_desiredNumberOfOutputChannels = numberOfOutputChannels;
124 124
125 AudioNode::checkNumberOfChannelsForInput(input); 125 AudioNode::checkNumberOfChannelsForInput(input);
126 } 126 }
127 127
128 } // namespace WebCore 128 } // namespace WebCore
129 129
130 #endif // ENABLE(WEB_AUDIO) 130 #endif // ENABLE(WEB_AUDIO)
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