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/*
* Copyright (C) 2012, 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 "third_party/blink/renderer/modules/webaudio/oscillator_node.h"
#include <algorithm>
#include <limits>
#include "build/build_config.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_oscillator_type.h"
#include "third_party/blink/renderer/modules/webaudio/audio_graph_tracer.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node_output.h"
#include "third_party/blink/renderer/modules/webaudio/periodic_wave.h"
#include "third_party/blink/renderer/platform/audio/audio_utilities.h"
#include "third_party/blink/renderer/platform/audio/vector_math.h"
#include "third_party/blink/renderer/platform/bindings/enumeration_base.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/heap/persistent.h"
#include "third_party/blink/renderer/platform/wtf/math_extras.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
namespace blink {
namespace {
constexpr double kDefaultFrequencyValue = 440.0;
constexpr double kDefaultDetuneValue = 0.0;
} // namespace
OscillatorNode::OscillatorNode(BaseAudioContext& context,
const String& oscillator_type,
PeriodicWave* wave_table)
: AudioScheduledSourceNode(context),
// Use musical pitch standard A440 as a default.
frequency_(AudioParam::Create(
context,
Uuid(),
AudioParamHandler::AudioParamType::kParamTypeOscillatorFrequency,
kDefaultFrequencyValue,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable,
/*min_value=*/-context.sampleRate() / 2,
/*max_value=*/context.sampleRate() / 2)),
// Default to no detuning.
detune_(AudioParam::Create(
context,
Uuid(),
AudioParamHandler::AudioParamType::kParamTypeOscillatorDetune,
kDefaultDetuneValue,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable,
/*min_value=*/-1200 * log2f(std::numeric_limits<float>::max()),
/*max_value=*/1200 * log2f(std::numeric_limits<float>::max()))) {
SetHandler(
OscillatorHandler::Create(*this, context.sampleRate(), oscillator_type,
wave_table ? wave_table->impl() : nullptr,
frequency_->Handler(), detune_->Handler()));
}
OscillatorNode* OscillatorNode::Create(BaseAudioContext& context,
const String& oscillator_type,
PeriodicWave* wave_table,
ExceptionState& exception_state) {
DCHECK(IsMainThread());
return MakeGarbageCollected<OscillatorNode>(context, oscillator_type,
wave_table);
}
OscillatorNode* OscillatorNode::Create(BaseAudioContext* context,
const OscillatorOptions* options,
ExceptionState& exception_state) {
if (options->type() == "custom" && !options->hasPeriodicWave()) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidStateError,
"A PeriodicWave must be specified if the type is set to \"custom\"");
return nullptr;
}
// TODO(crbug.com/1070871): Use periodicWaveOr(nullptr).
OscillatorNode* node =
Create(*context, IDLEnumAsString(options->type()),
options->hasPeriodicWave() ? options->periodicWave() : nullptr,
exception_state);
if (!node) {
return nullptr;
}
node->HandleChannelOptions(options, exception_state);
node->detune()->setValue(options->detune());
node->frequency()->setValue(options->frequency());
return node;
}
void OscillatorNode::Trace(Visitor* visitor) const {
visitor->Trace(frequency_);
visitor->Trace(detune_);
AudioScheduledSourceNode::Trace(visitor);
}
OscillatorHandler& OscillatorNode::GetOscillatorHandler() const {
return static_cast<OscillatorHandler&>(Handler());
}
V8OscillatorType OscillatorNode::type() const {
return V8OscillatorType(GetOscillatorHandler().GetType());
}
void OscillatorNode::setType(const V8OscillatorType& type,
ExceptionState& exception_state) {
GetOscillatorHandler().SetType(type.AsEnum(), exception_state);
}
AudioParam* OscillatorNode::frequency() {
return frequency_.Get();
}
AudioParam* OscillatorNode::detune() {
return detune_.Get();
}
void OscillatorNode::setPeriodicWave(PeriodicWave* wave) {
GetOscillatorHandler().SetPeriodicWave(wave->impl());
}
void OscillatorNode::ReportDidCreate() {
GraphTracer().DidCreateAudioNode(this);
GraphTracer().DidCreateAudioParam(detune_);
GraphTracer().DidCreateAudioParam(frequency_);
}
void OscillatorNode::ReportWillBeDestroyed() {
GraphTracer().WillDestroyAudioParam(detune_);
GraphTracer().WillDestroyAudioParam(frequency_);
GraphTracer().WillDestroyAudioNode(this);
}
} // namespace blink
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