webaudio/src/cpp/audio-node.cpp at master · node-3d/webaudio · GitHub

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#include "audio-node.hpp"

#include "audio-context.hpp"

#include "audio-param.hpp"

IMPLEMENT_ES5_CLASS(AudioNode);

void AudioNode::init(Napi::Env env, Napi::Object exports) {

Napi::Function ctor = wrap(env);

JS_ASSIGN_SETTER(channelInterpretation);

JS_ASSIGN_SETTER(channelCountMode);

JS_ASSIGN_SETTER(channelCount);

JS_ASSIGN_METHOD(disconnect);

JS_ASSIGN_METHOD(connect);

JS_ASSIGN_GETTER(numberOfOutputs);

JS_ASSIGN_GETTER(numberOfInputs);

JS_ASSIGN_GETTER(context);

JS_ASSIGN_METHOD(destroy);

JS_ASSIGN_METHOD(diagnose);

exports.Set("AudioNode", ctor);

}

bool AudioNode::isAudioNode(Napi::Object obj) {

return obj.InstanceOf(_ctorEs5.Value());

}

inline std::string fromChannelCountMode(lab::ChannelCountMode mode) {

if (mode == lab::ChannelCountMode::ClampedMax) {

return "clamped-max";

} else if (mode == lab::ChannelCountMode::Explicit) {

return "explicit";

} else {

return "max";

}

inline lab::ChannelCountMode toChannelCountMode(const std::string &mode) {

if (mode == "clamped-max") {

return lab::ChannelCountMode::ClampedMax;

} else if (mode == "explicit") {

return lab::ChannelCountMode::Explicit;

} else {

return lab::ChannelCountMode::Max;

}

inline std::string fromChannelInterpretation(lab::ChannelInterpretation io) {

if (io == lab::ChannelInterpretation::Discrete) {

return "discrete";

} else {

return "speakers";

}

inline lab::ChannelInterpretation toChannelInterpretation(const std::string &io) {

if (io == "discrete") {

return lab::ChannelInterpretation::Discrete;

} else {

return lab::ChannelInterpretation::Speakers;

}

AudioNode::AudioNode(const Napi::CallbackInfo &info) : CommonNode(info.This(), "AudioNode") {

NAPI_ENV;

super(info);

Napi::Object context = info[0].As<Napi::Object>();

Napi::External<void> extNode = info[1].As<Napi::External<void>>();

NodePtr *ext = reinterpret_cast<NodePtr *>(extNode.Data());

reset(context, *ext);

_channelCountMode = fromChannelCountMode(_impl->channelCountMode());

_channelInterpretation = fromChannelInterpretation(_impl->channelInterpretation());

}

AudioNode::~AudioNode() {

_destroy();

}

void AudioNode::_destroy() {

DES_CHECK;

CommonNode::_destroy();

}

// node2 node1.connect(node2);

// node2 node1.connect(node2, output);

// node2 node1.connect(node2, output, input);

// undefined node1.connect(param);

// undefined node1.connect(param, output);

JS_IMPLEMENT_METHOD(AudioNode, connect) {

THIS_CHECK;

REQ_OBJ_ARG(0, destination);

Napi::Object context = _context.Value();

AudioContext *audioContext = AudioContext::unwrap(context);

lab::AudioContext *ctx = audioContext->getCtx().get();

if (isAudioNode(destination)) {

LET_INT32_ARG(1, output);

LET_INT32_ARG(2, input);

AudioNode *destNode = AudioNode::unwrap(destination);

ctx->connect(destNode->_impl, _impl, input, output);

if (destNode->_impl.get() == static_cast<lab::AudioNode *>(ctx->destinationNode().get())) {

ctx->synchronizeConnections();

}

} else if (AudioParam::isAudioParam(destination)) {

LET_INT32_ARG(1, output);

AudioParam *destParam = AudioParam::unwrap(destination);

ctx->connectParam(destParam->getParam(), _impl, output);

}

RET_UNDEFINED;

}

// undefined node1.disconnect();

// undefined node1.disconnect(dest);

// undefined node1.disconnect(dest, output);

// undefined node1.disconnect(dest, output, input);

// MAP TO --->

// ctx->disconnect(NodePtr destination, NodePtr source, int input, int output)

// ctx->disconnect(NodePtr source, int output)

JS_IMPLEMENT_METHOD(AudioNode, disconnect) {

THIS_CHECK;

int output = 0;

int input = 0;

Napi::Object destination;

Napi::Object context = _context.Value();

AudioContext *audioContext = AudioContext::unwrap(context);

lab::AudioContext *ctx = audioContext->getCtx().get();

if (info.Length() == 1) {

if (info[0].IsObject()) {

REQ_OBJ_ARG(0, destArg);

destination = destArg;

} else if (info[0].IsNumber()) {

REQ_INT_ARG(0, outputArg);

output = outputArg;

}

} else if (info.Length() == 2) {

REQ_OBJ_ARG(0, destArg);

REQ_INT_ARG(1, outputArg);

destination = destArg;

output = outputArg;

} else if (info.Length() == 3) {

REQ_OBJ_ARG(0, destArg);

REQ_INT_ARG(1, outputArg);

REQ_INT_ARG(2, inputArg);

destination = destArg;

output = outputArg;

input = inputArg;

} else {

// Disconnect self

ctx->disconnect(_impl, output);

RET_UNDEFINED;

}

if (AudioNode::isAudioNode(destination)) {

AudioNode *destNode = AudioNode::unwrap(destination);

ctx->disconnect(destNode->_impl, _impl, input, output);

} else if (AudioParam::isAudioParam(destination)) {

AudioParam *destParam = AudioParam::unwrap(destination);

ParamPtr param = destParam->getParam();

ctx->disconnectParam(param, _impl, output);

}

RET_UNDEFINED;

}

JS_IMPLEMENT_GETTER(AudioNode, context) {

THIS_CHECK;

RET_VALUE(_context.Value());

}

JS_IMPLEMENT_GETTER(AudioNode, numberOfInputs) {

THIS_CHECK;

RET_NUM(static_cast<uint32_t>(_impl->numberOfInputs()));

}

JS_IMPLEMENT_GETTER(AudioNode, numberOfOutputs) {

THIS_CHECK;

RET_NUM(static_cast<uint32_t>(_impl->numberOfOutputs()));

}

JS_IMPLEMENT_GETTER(AudioNode, channelCount) {

THIS_CHECK;

RET_NUM(static_cast<uint32_t>(_impl->channelCount()));

}

JS_IMPLEMENT_SETTER(AudioNode, channelCount) {

THIS_CHECK;

SETTER_UINT32_ARG;

Napi::Object context = _context.Value();

AudioContext *audioContext = AudioContext::unwrap(context);

lab::ContextGraphLock graphLock(audioContext->getCtx().get(), "AudioNode::channelCountSetter");

_impl->setChannelCount(graphLock, v);

emit("channelCount", 1, &value);

RET_UNDEFINED;

}

JS_IMPLEMENT_GETTER(AudioNode, channelCountMode) {

THIS_CHECK;

RET_STR(_channelCountMode);

}

JS_IMPLEMENT_SETTER(AudioNode, channelCountMode) {

THIS_CHECK;

SETTER_STR_ARG;

CACHE_CAS(_channelCountMode, v);

// TODO: may be additional actions on change?

emit("channelCountMode", 1, &value);

RET_UNDEFINED;

}

JS_IMPLEMENT_GETTER(AudioNode, channelInterpretation) {

THIS_CHECK;

RET_STR(_channelInterpretation);

}

JS_IMPLEMENT_SETTER(AudioNode, channelInterpretation) {

THIS_CHECK;

SETTER_STR_ARG;

CACHE_CAS(_channelInterpretation, v);

// TODO: may be additional actions on change?

emit("channelInterpretation", 1, &value);

RET_UNDEFINED;

}

JS_IMPLEMENT_METHOD(AudioNode, destroy) {

THIS_CHECK;

emit("destroy");

_destroy();

RET_UNDEFINED;

}

JS_IMPLEMENT_METHOD(AudioNode, diagnose) {

THIS_CHECK;

Napi::Object context = _context.Value();

AudioContext *audioContext = AudioContext::unwrap(context);

lab::AudioContext *ctx = audioContext->getCtx().get();

ctx->diagnose(_impl);

RET_UNDEFINED;

}

webaudio/src/cpp/audio-node.cpp at master · node-3d/webaudio · GitHub

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