chromium/third_party/blink/renderer/modules/webaudio/script_processor_node.cc

/*
 * 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
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 */

#include "third_party/blink/renderer/modules/webaudio/script_processor_node.h"

#include <memory>

#include "base/synchronization/waitable_event.h"
#include "base/trace_event/trace_event.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable_creation_key.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/inspector/console_message.h"
#include "third_party/blink/renderer/modules/webaudio/audio_buffer.h"
#include "third_party/blink/renderer/modules/webaudio/audio_graph_tracer.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node_input.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node_output.h"
#include "third_party/blink/renderer/modules/webaudio/audio_processing_event.h"
#include "third_party/blink/renderer/modules/webaudio/base_audio_context.h"
#include "third_party/blink/renderer/modules/webaudio/realtime_audio_destination_node.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/scheduler/public/post_cross_thread_task.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"

namespace blink {

namespace {

bool IsAudioBufferDetached(AudioBuffer* buffer) { … }

bool BufferTopologyMatches(AudioBuffer* buffer_1, AudioBuffer* buffer_2) { … }

uint32_t ChooseBufferSize(uint32_t callback_buffer_size) { … }

}  // namespace

ScriptProcessorNode::ScriptProcessorNode(BaseAudioContext& context,
                                         float sample_rate,
                                         uint32_t buffer_size,
                                         uint32_t number_of_input_channels,
                                         uint32_t number_of_output_channels)
    : … { … }

ScriptProcessorNode* ScriptProcessorNode::Create(
    BaseAudioContext& context,
    ExceptionState& exception_state) { … }

ScriptProcessorNode* ScriptProcessorNode::Create(
    BaseAudioContext& context,
    uint32_t requested_buffer_size,
    ExceptionState& exception_state) { … }

ScriptProcessorNode* ScriptProcessorNode::Create(
    BaseAudioContext& context,
    uint32_t requested_buffer_size,
    uint32_t number_of_input_channels,
    ExceptionState& exception_state) { … }

ScriptProcessorNode* ScriptProcessorNode::Create(
    BaseAudioContext& context,
    uint32_t requested_buffer_size,
    uint32_t number_of_input_channels,
    uint32_t number_of_output_channels,
    ExceptionState& exception_state) { … }

uint32_t ScriptProcessorNode::bufferSize() const { … }

void ScriptProcessorNode::DispatchEvent(double playback_time,
                                        uint32_t double_buffer_index) { … }

bool ScriptProcessorNode::HasPendingActivity() const { … }

void ScriptProcessorNode::Trace(Visitor* visitor) const { … }

void ScriptProcessorNode::ReportDidCreate() { … }

void ScriptProcessorNode::ReportWillBeDestroyed() { … }

}  // namespace blink