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AudioWorklet* #6

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129 changes: 75 additions & 54 deletions webaudio.nim
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Original file line number Diff line number Diff line change
@@ -1,28 +1,38 @@
import dom
import jsffi
import std/asyncjs

type
# AudioWorkletGlobalScope {.importjs: "AudioContext".} = object of RootObj
AudioContextObj {.importjs: "AudioContext".} = object of RootObj
destination*: ref AudioDestinationNodeObj
currentTime*: float
listener*: AudioListener
sampleRate*: float
state*: cstring
AudioContext* = ref AudioContextObj
AudioNodeObj {.importjs: "AudioNode".} = object of RootObj
context*: AudioContext
numberOfInputs*: int
numberOfOutputs*: int
channelCount*: int
channelCountMode*: int
channelInterpretation*: cstring
AudioNode* = ref AudioNodeObj

AudioBuffer* {.importjs: "AudioBuffer".} = ref object of RootObj
length*: int
AudioBufferSourceNode* {.importjs: "AudioBufferSourceNode".} = ref object of AudioNodeObj
buffer*: AudioBuffer
detune*: AudioParamObj
loop*: bool
loopEnd*: AudioParamObj
loopStart*: AudioParamObj
playbackRate*: AudioParamObj

AudioContextObj {.importjs: "AudioContext".} = object of RootObj
audioWorklet*: AudioWorklet
currentTime*: float
destination*: ref AudioDestinationNodeObj
listener*: AudioListener
sampleRate*: float
state*: cstring
AudioContext* = ref AudioContextObj

AudioDestinationNodeObj {.importjs: "AudioDestinationNode".} = object of AudioNodeObj
AudioParamObj {.importjs: "AudioParam".} = object of RootObj
defaultValue*: float
maxValue*: float
minValue*: float
value*: float

AudioListenerObj {.importjs: "AudioListener".} = object of RootObj
forwardX*: AudioParam
forwardY*: AudioParam
Expand All @@ -34,75 +44,86 @@ type
upY*: AudioParam
upZ*: AudioParam
AudioListener* = ref AudioListenerObj

AudioParamObj {.importjs: "AudioParam".} = object of RootObj
defaultValue*: float
maxValue*: float
minValue*: float
value*: float
AudioParam* = ref AudioParamObj

AudioProcessingEventObj = object of Event
inputBuffer*: AudioBuffer
outputBuffer*: AudioBuffer
AudioProcessingEvent* = ref AudioProcessingEventObj

AudioWorkletGlobalScopeObj {.importjs: "AudioWorkletGlobalScope".} = object of RootObj
AudioWorkletGlobalScope* = ref AudioWorkletGlobalScopeObj
AudioWorkletObj {.importjs: "AudioWorklet".} = object of RootObj
AudioWorklet* = ref AudioWorkletObj
AudioWorkletNodeObj {.importjs: "AudioWorkletNode".} = object of AudioNodeObj
AudioWorkletNode* = ref AudioWorkletNodeObj
AudioWorkletProcessorObj {.importjs: "AudioWorkletProcessor".} = object of RootObj
AudioWorkletProcessor* = ref AudioWorkletProcessorObj

GainNodeObj {.importjs: "GainNode".} = object of AudioNodeObj
gain*: AudioParam
GainNode* = ref GainNodeObj

MediaElementAudioSourceNodeObj = object of AudioNodeObj
MediaElementAudioSourceNode* = ref MediaElementAudioSourceNodeObj

OscillatorNodeObj {.importjs: "OscillatorNode".} = object of AudioNodeObj
`type`*: cstring
frequency*: AudioParam
detune*: AudioParam
OscillatorNode* = ref OscillatorNodeObj

PeriodicWaveObj = object of RootObj
PeriodicWave* = ref PeriodicWaveObj

ScriptProcessorNodeObj {.importjs: "ScriptProcessorNode", deprecated.} = object of AudioNodeObj
bufferSize*: int
onaudioprocess*: proc(e: AudioProcessingEvent)
OscillatorNode* = ref OscillatorNodeObj
ScriptProcessorNode* = ref ScriptProcessorNodeObj
AudioNode* = ref AudioNodeObj
AudioBuffer* {.importjs: "AudioBuffer".} = ref object of RootObj
length*: int
AudioBufferSourceNode* {.importjs: "AudioBufferSourceNode".} = ref object of AudioNodeObj
buffer*: AudioBuffer
detune*: AudioParamObj
loop*: bool
loopEnd*: AudioParamObj
loopStart*: AudioParamObj
playbackRate*: AudioParamObj
PeriodicWaveObj = object of RootObj
PeriodicWave* = ref PeriodicWaveObj
MediaElementAudioSourceNodeObj = object of AudioNodeObj
MediaElementAudioSourceNode* = ref MediaElementAudioSourceNodeObj

{.emit:"""
var AudioContext = window.AudioContext || window.webkitAudioContext || null;
""".}

proc newAudioContext*(): AudioContext {.importjs: "new AudioContext()".}
proc getChannelData*(self: AudioBuffer, channel: int): seq[float32] {.importjs: "#.getChannelData(@)".}

proc createBuffer*(context: AudioContext, numOfChannels: int, length: int, sampleRate: int): AudioBuffer {.importjs: "#.createBuffer(@)"}
proc createBufferSource*(context: AudioContext): AudioBufferSourceNode {.importjs: "#.createBufferSource(@)".}
proc createGain*(context: AudioContext): GainNode {.importjs: "#.createGain(@)".}
proc createMediaElementSource*(context: AudioContext, el: Element): MediaElementAudioSourceNode {.importjs: "#.createMediaElementSource(@)".}
proc createOscillator*(context: AudioContext): OscillatorNode {.importjs: "#.createOscillator(@)".}
proc createPeriodicWave*(context: AudioContext, real, imag: openarray[float], options: JsAssoc = {}): PeriodicWave {.importjs: "#.createPeriodicWave(Float32Array.from(#), Float32Array.from(#))".}
proc createScriptProcessor*(context: AudioContext, bufferSize, inputChannels, outputChannels: int): ScriptProcessorNode {.importjs: "#.createScriptProcessor(@)", deprecated.}
proc createMediaElementSource*(context: AudioContext, el: Element): MediaElementAudioSourceNode {.importjs: "#.createMediaElementSource(@)".}

proc createPeriodicWave*(context: AudioContext, real, imag: openarray[float], options: JsAssoc = {}): PeriodicWave {.importjs:"#.createPeriodicWave(Float32Array.from(#), Float32Array.from(#))".}

proc getChannelData*(self: AudioBuffer, channel: int): seq[float32] {.importjs: "#.getChannelData(@)".}

proc start*(node: AudioNode) {.importjs:"#.start(@)".}
proc stop*(node: AudioNode) {.importjs:"#.stop(@)".}

proc start*(node: AudioNode, time: float) {.importjs:"#.start(@,@)".}
proc stop*(node: AudioNode, time: float) {.importjs:"#.stop(@,@)".}
proc decodeAudioData*(ctx: AudioContext, audioData: cstring, success: proc(buffer: AudioBuffer), error: proc() = nil) {.importjs: "#.decodeAudioData(@)".}
proc newAudioContext*(): AudioContext {.importjs: "new AudioContext()".}
proc newAudioWorkletNode*(ctx: AudioContext, name: cstring): AudioNode {.importjs: "new AudioWorkletNode(@,@)".}
proc suspend*(ctx: AudioContext) {.importjs: "#.suspend(@)".}
proc resume*(ctx: AudioContext) {.importjs: "#.resume(@)".}

proc setPeriodicWave*(osc: OscillatorNode, wave: PeriodicWave) {.importjs:"#.setPeriodicWave(@)".}
proc connect*(node: AudioNode, other: AudioNode): AudioNode {.importjs: "#.connect(@)", discardable.}
proc connect*(node: AudioNode, other: AudioParam) {.importjs: "#.connect(@)", discardable.}
proc disconnect*(node: AudioNode, other: AudioNode) {.importjs: "#.disconnect(@)".}
proc disconnect*(node: AudioNode) {.importjs: "#.disconnect(@)".}
proc start*(node: AudioNode) {.importjs: "#.start(@)".}
proc start*(node: AudioNode, time: float) {.importjs: "#.start(@,@)".}
proc stop*(node: AudioNode) {.importjs: "#.stop(@)".}
proc stop*(node: AudioNode, time: float) {.importjs: "#.stop(@,@)".}

proc decodeAudioData*(ctx: AudioContext, audioData: cstring, success: proc(buffer: AudioBuffer), error: proc() = nil) {.importjs:"#.decodeAudioData(@)".}
proc suspend*(ctx: AudioContext) {.importjs:"#.suspend(@)".}
proc resume*(ctx: AudioContext) {.importjs:"#.resume(@)".}
proc cancelAndHoldAtTime*(param: AudioParam, cancelTime: float) {.importjs: "#.cancelAndHoldAtTime(@,@)".}
proc cancelScheduledValues*(param: AudioParam, startTime: float) {.importjs: "#.cancelScheduledValues(@,@)".}
proc exponentialRampToValueAtTime*(param: AudioParam, value: float, endTime: float) {.importjs: "#.exponentialRampToValueAtTime(@,@,@)".}
proc linearRampToValueAtTime*(param: AudioParam, value: float, endTime: float) {.importjs: "#.linearRampToValueAtTime(@,@,@)".}
proc setTargetAtTime*(param: AudioParam, value: float, startTime: float, timeConstant: float) {.importjs: "#.setTargetAtTime*((@,@,@)".}
proc setValueAtTime*(param: AudioParam, value: float, startTime: float) {.importjs: "#.setValueAtTime(@,@,@)".}
proc setValueCurveAtTime*(param: AudioParam, values:openArray[float], startTime: float, duration: float) {.importjs: "#.setValueCurveAtTime(@,@,@,@)".}

proc connect*(node: AudioNode, other: AudioNode): AudioNode {.importjs:"#.connect(@)", discardable.}
proc disconnect*(node: AudioNode, other: AudioNode) {.importjs:"#.disconnect(@)".}
proc disconnect*(node: AudioNode) {.importjs:"#.disconnect(@)".}
proc setPeriodicWave*(osc: OscillatorNode, wave: PeriodicWave) {.importjs: "#.setPeriodicWave(@)".}

proc cancelAndHoldAtTime*(param: AudioParam, cancelTime: float) {.importjs:"#.cancelAndHoldAtTime(@,@)".}
proc cancelScheduledValues*(param: AudioParam, startTime: float) {.importjs:"#.cancelScheduledValues(@,@)".}
proc exponentialRampToValueAtTime*(param: AudioParam, value: float, endTime: float) {.importjs:"#.exponentialRampToValueAtTime(@,@,@)".}
proc linearRampToValueAtTime*(param: AudioParam, value: float, endTime: float) {.importjs:"#.linearRampToValueAtTime(@,@,@)".}
proc setTargetAtTime*(param: AudioParam, value: float, startTime: float, timeConstant: float) {.importjs:"#.setTargetAtTime*((@,@,@)".}
proc setValueAtTime*(param: AudioParam, value: float, startTime: float) {.importjs:"#.setValueAtTime(@,@,@)".}
proc setValueCurveAtTime*(param: AudioParam, values:openArray[float], startTime: float, duration: float) {.importjs:"#.setValueCurveAtTime(@,@,@,@)".}
proc registerProcessor*(scope: AudioWorkletGlobalScope, name: cstring, processorCtor: proc() : AudioWorkletProcessor) {.importjs: "#.registerProcessor(Float32Array.from(#), Float32Array.from(#))".}
proc addModule*(worklet: AudioWorklet, moduleURL: cstring) : Future[jsNull] {.importjs: "#.$1(#)", discardable.}