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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/ChannelSplitterNode.cpp

Issue 1865583002: Implement BaseAudioContext (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 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 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * 12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */ 23 */
24 24
25 #include "modules/webaudio/ChannelSplitterNode.h" 25 #include "modules/webaudio/ChannelSplitterNode.h"
26 #include "modules/webaudio/AbstractAudioContext.h"
27 #include "modules/webaudio/AudioNodeInput.h" 26 #include "modules/webaudio/AudioNodeInput.h"
28 #include "modules/webaudio/AudioNodeOutput.h" 27 #include "modules/webaudio/AudioNodeOutput.h"
28 #include "modules/webaudio/BaseAudioContext.h"
29 29
30 namespace blink { 30 namespace blink {
31 31
32 ChannelSplitterHandler::ChannelSplitterHandler(AudioNode& node, float sampleRate , unsigned numberOfOutputs) 32 ChannelSplitterHandler::ChannelSplitterHandler(AudioNode& node, float sampleRate , unsigned numberOfOutputs)
33 : AudioHandler(NodeTypeChannelSplitter, node, sampleRate) 33 : AudioHandler(NodeTypeChannelSplitter, node, sampleRate)
34 { 34 {
35 addInput(); 35 addInput();
36 36
37 // Create a fixed number of outputs (able to handle the maximum number of ch annels fed to an input). 37 // Create a fixed number of outputs (able to handle the maximum number of ch annels fed to an input).
38 for (unsigned i = 0; i < numberOfOutputs; ++i) 38 for (unsigned i = 0; i < numberOfOutputs; ++i)
(...skipping 25 matching lines...) Expand all
64 destination->channel(0)->copyFrom(source->channel(i)); 64 destination->channel(0)->copyFrom(source->channel(i));
65 } else if (output(i).renderingFanOutCount() > 0) { 65 } else if (output(i).renderingFanOutCount() > 0) {
66 // Only bother zeroing out the destination if it's connected to anyt hing 66 // Only bother zeroing out the destination if it's connected to anyt hing
67 destination->zero(); 67 destination->zero();
68 } 68 }
69 } 69 }
70 } 70 }
71 71
72 // ---------------------------------------------------------------- 72 // ----------------------------------------------------------------
73 73
74 ChannelSplitterNode::ChannelSplitterNode(AbstractAudioContext& context, float sa mpleRate, unsigned numberOfOutputs) 74 ChannelSplitterNode::ChannelSplitterNode(BaseAudioContext& context, float sample Rate, unsigned numberOfOutputs)
75 : AudioNode(context) 75 : AudioNode(context)
76 { 76 {
77 setHandler(ChannelSplitterHandler::create(*this, sampleRate, numberOfOutputs )); 77 setHandler(ChannelSplitterHandler::create(*this, sampleRate, numberOfOutputs ));
78 } 78 }
79 79
80 ChannelSplitterNode* ChannelSplitterNode::create(AbstractAudioContext& context, float sampleRate, unsigned numberOfOutputs) 80 ChannelSplitterNode* ChannelSplitterNode::create(BaseAudioContext& context, floa t sampleRate, unsigned numberOfOutputs)
81 { 81 {
82 if (!numberOfOutputs || numberOfOutputs > AbstractAudioContext::maxNumberOfC hannels()) 82 if (!numberOfOutputs || numberOfOutputs > BaseAudioContext::maxNumberOfChann els())
83 return nullptr; 83 return nullptr;
84 return new ChannelSplitterNode(context, sampleRate, numberOfOutputs); 84 return new ChannelSplitterNode(context, sampleRate, numberOfOutputs);
85 } 85 }
86 86
87 } // namespace blink 87 } // namespace blink
88 88
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