1 files changed, 0 insertions, 113 deletions
diff --git a/WebCore/webaudio/AudioGainNode.cpp b/WebCore/webaudio/AudioGainNode.cpp
deleted file mode 100644
index 5b9af07..0000000
--- a/WebCore/webaudio/AudioGainNode.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2010, Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1.  Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#if ENABLE(WEB_AUDIO)
-
-#include "AudioGainNode.h"
-
-#include "AudioBus.h"
-#include "AudioNodeInput.h"
-#include "AudioNodeOutput.h"
-
-namespace WebCore {
-
-AudioGainNode::AudioGainNode(AudioContext* context, double sampleRate)
-    : AudioNode(context, sampleRate)
-    , m_lastGain(1.0)
-{
-    m_gain = AudioGain::create("gain", 1.0, 0.0, 1.0);
-
-    addInput(adoptPtr(new AudioNodeInput(this)));
-    addOutput(adoptPtr(new AudioNodeOutput(this, 1)));
-    
-    setType(NodeTypeGain);
-    
-    initialize();
-}
-
-void AudioGainNode::process(size_t /*framesToProcess*/)
-{
-    // FIXME: there is a nice optimization to avoid processing here, and let the gain change
-    // happen in the summing junction input of the AudioNode we're connected to.
-    // Then we can avoid all of the following:
-
-    AudioBus* outputBus = output(0)->bus();
-    ASSERT(outputBus);
-
-    // The realtime thread can't block on this lock, so we call tryLock() instead.
-    if (m_processLock.tryLock()) {
-        if (!isInitialized() || !input(0)->isConnected())
-            outputBus->zero();
-        else {
-            AudioBus* inputBus = input(0)->bus();
-
-            // Apply the gain with de-zippering into the output bus.
-            outputBus->copyWithGainFrom(*inputBus, &m_lastGain, gain()->value());
-        }
-
-        m_processLock.unlock();
-    } else {
-        // Too bad - the tryLock() failed.  We must be in the middle of re-connecting and were already outputting silence anyway...
-        outputBus->zero();
-    }
-}
-
-void AudioGainNode::reset()
-{
-    // Snap directly to desired gain.
-    m_lastGain = gain()->value();
-}
-
-// FIXME: this can go away when we do mixing with gain directly in summing junction of AudioNodeInput
-//
-// As soon as we know the channel count of our input, we can lazily initialize.
-// Sometimes this may be called more than once with different channel counts, in which case we must safely
-// uninitialize and then re-initialize with the new channel count.
-void AudioGainNode::checkNumberOfChannelsForInput(AudioNodeInput* input)
-{
-    ASSERT(input && input == this->input(0));
-    if (input != this->input(0))
-        return;
-        
-    unsigned numberOfChannels = input->numberOfChannels();    
-
-    if (isInitialized() && numberOfChannels != output(0)->numberOfChannels()) {
-        // We're already initialized but the channel count has changed.
-        // We need to be careful since we may be actively processing right now, so synchronize with process().
-        MutexLocker locker(m_processLock);
-        uninitialize();
-    }
-
-    if (!isInitialized()) {
-        // This will propagate the channel count to any nodes connected further downstream in the graph.
-        output(0)->setNumberOfChannels(numberOfChannels);
-        initialize();
-    }
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(WEB_AUDIO)