chore: refactor chiptune2

This commit is contained in:
ShittyKopper 2024-01-13 17:50:52 +03:00
parent af3065f315
commit d03ad221a1
2 changed files with 359 additions and 338 deletions

View file

@ -40,7 +40,7 @@
<i class="ph-stop ph-bold ph-lg"></i>
</button>
<button :class="$style.loop" @click="toggleLoop()">
<i v-if="loop === -1" class="ph-repeat ph-bold ph-lg"></i>
<i v-if="loop" class="ph-repeat ph-bold ph-lg"></i>
<i v-else class="ph-repeat-once ph-bold ph-lg"></i>
</button>
<input ref="progress" v-model="position" :class="$style.progress" type="range" min="0" :max="length" step="0.1" @mousedown="initSeek()" @mouseup="performSeek()"/>
@ -58,7 +58,7 @@ import { ref, shallowRef, nextTick, onDeactivated, onMounted } from 'vue';
import * as Misskey from 'misskey-js';
import { i18n } from '@/i18n.js';
import { defaultStore } from '@/store.js';
import { ChiptuneJsPlayer, ChiptuneJsConfig } from '@/scripts/chiptune2.js';
import { ChiptuneJsPlayer } from '@/scripts/chiptune2.js';
const props = defineProps<{
module: Misskey.entities.DriveFile
@ -80,32 +80,32 @@ const playing = ref(false);
const modPattern = ref<HTMLDivElement>();
const progress = ref<HTMLProgressElement>();
const position = ref(0);
const player = shallowRef(new ChiptuneJsPlayer(new ChiptuneJsConfig()));
const patData = shallowRef([] as ModRow[][]);
const player = shallowRef(new ChiptuneJsPlayer());
const patData = shallowRef<readonly ModRow[][]>([]);
const currentPattern = ref(0);
const nbChannels = ref(0);
const length = ref(1);
const loop = ref(0);
const loop = ref(false);
const fetching = ref(true);
const error = ref(false);
const loading = ref(false);
let currentRow = 0;
let rowHeight = 0;
let buffer = null;
let buffer: ArrayBuffer|null = null;
let isSeeking = false;
function load() {
player.value.load(props.module.url).then((result) => {
buffer = result;
async function load() {
try {
buffer = await player.value.load(props.module.url);
available.value = true;
error.value = false;
fetching.value = false;
}).catch((err) => {
} catch (err) {
console.error(err);
error.value = true;
fetching.value = false;
});
}
}
onMounted(load);
@ -134,6 +134,10 @@ function getRowText(row: ModRow) {
}
function playPause() {
if (buffer === null) {
return;
}
player.value.addHandler('onRowChange', (i: { index: number }) => {
currentRow = i.index;
currentPattern.value = player.value.getPattern();
@ -152,7 +156,7 @@ function playPause() {
loading.value = true;
player.value.play(buffer).then(() => {
player.value.seek(position.value);
player.value.repeat(loop.value);
player.value.repeat(loop.value ? -1 : 0);
playing.value = true;
loading.value = false;
});
@ -163,6 +167,10 @@ function playPause() {
}
async function stop(noDisplayUpdate = false) {
if (buffer === null) {
return;
}
player.value.stop();
playing.value = false;
if (!noDisplayUpdate) {
@ -180,8 +188,8 @@ async function stop(noDisplayUpdate = false) {
}
function toggleLoop() {
loop.value = loop.value === -1 ? 0 : -1;
player.value.repeat(loop.value);
loop.value = !loop.value;
player.value.repeat(loop.value ? -1 : 0);
}
function initSeek() {
@ -200,30 +208,27 @@ function toggleVisible() {
}
function isRowActive(i: number) {
if (i === currentRow) {
if (i !== currentRow) {
return false;
}
if (modPattern.value) {
if (rowHeight === 0 && initRow.value) rowHeight = initRow.value[0].getBoundingClientRect().height;
modPattern.value.scrollTop = currentRow * rowHeight;
}
return true;
}
return false;
}
function indexText(i: number) {
let rowText = i.toString(16);
if (rowText.length === 1) {
rowText = '0' + rowText;
}
return rowText;
return i.toString(16).padStart(2, '0');
}
function getRow(pattern: number, rowOffset: number) {
let notes: string[] = [],
insts: string[] = [],
vols: string[] = [],
fxs: string[] = [],
ops: string[] = [];
function getRow(pattern: number, rowOffset: number): ModRow {
const notes: string[] = [];
const insts: string[] = [];
const vols: string[] = [];
const fxs: string[] = [];
const ops: string[] = [];
for (let channel = 0; channel < nbChannels.value; channel++) {
const part = player.value.getPatternRowChannel(
@ -252,15 +257,12 @@ function display(reset = false) {
if (!patternShow.value) return;
if (reset) {
const pattern = player.value.getPattern();
currentPattern.value = pattern;
currentPattern.value = player.value.getPattern();
}
if (patData.value.length === 0) {
const nbPatterns = player.value.getNumPatterns();
const pattern = player.value.getPattern();
currentPattern.value = pattern;
currentPattern.value = player.value.getPattern();
if (player.value.currentPlayingNode) {
nbChannels.value = player.value.currentPlayingNode.nbChannels;

View file

@ -1,26 +1,28 @@
const ChiptuneAudioContext = window.AudioContext;
type HandlerFunction = Function;
export function ChiptuneJsConfig(repeatCount?: number, context?: AudioContext) {
this.repeatCount = repeatCount;
this.context = context;
interface Handler {
eventName: string,
handler: HandlerFunction,
}
ChiptuneJsConfig.prototype.constructor = ChiptuneJsConfig;
export class ChiptuneJsPlayer {
libopenmpt;
audioContext: AudioContext;
context: GainNode;
currentPlayingNode: ChiptuneProcessorNode | null;
private handlers: Handler[];
private touchLocked: boolean;
export function ChiptuneJsPlayer(config: object) {
constructor() {
this.libopenmpt = null;
this.config = config;
this.audioContext = config.context ?? new ChiptuneAudioContext();
this.audioContext = new AudioContext();
this.context = this.audioContext.createGain();
this.currentPlayingNode = null;
this.handlers = [];
this.touchLocked = true;
this.volume = 1;
}
}
ChiptuneJsPlayer.prototype.constructor = ChiptuneJsPlayer;
ChiptuneJsPlayer.prototype.fireEvent = function (eventName: string, response) {
fireEvent(eventName: string, response) {
const handlers = this.handlers;
if (handlers.length > 0) {
for (const handler of handlers) {
@ -29,59 +31,75 @@ ChiptuneJsPlayer.prototype.fireEvent = function (eventName: string, response) {
}
}
}
};
}
ChiptuneJsPlayer.prototype.addHandler = function (
addHandler(
eventName: string,
handler: Function,
) {
handler: HandlerFunction,
) {
this.handlers.push({ eventName, handler });
};
}
ChiptuneJsPlayer.prototype.clearHandlers = function () {
clearHandlers() {
this.handlers = [];
};
}
ChiptuneJsPlayer.prototype.onEnded = function (handler: Function) {
onEnded(handler: HandlerFunction) {
this.addHandler('onEnded', handler);
};
}
ChiptuneJsPlayer.prototype.onError = function (handler: Function) {
onError(handler: HandlerFunction) {
this.addHandler('onError', handler);
};
}
duration(): number {
if (!this.currentPlayingNode) {
return 0;
}
ChiptuneJsPlayer.prototype.duration = function () {
return this.libopenmpt._openmpt_module_get_duration_seconds(
this.currentPlayingNode.modulePtr,
);
};
}
position(): number {
if (!this.currentPlayingNode) {
return 0;
}
ChiptuneJsPlayer.prototype.position = function () {
return this.libopenmpt._openmpt_module_get_position_seconds(
this.currentPlayingNode.modulePtr,
);
};
}
repeat(repeatCount: number) {
if (!this.currentPlayingNode) {
return;
}
ChiptuneJsPlayer.prototype.repeat = function (repeatCount: number) {
if (this.currentPlayingNode) {
this.libopenmpt._openmpt_module_set_repeat_count(
this.currentPlayingNode.modulePtr,
repeatCount,
);
}
};
ChiptuneJsPlayer.prototype.seek = function (position: number) {
if (this.currentPlayingNode) {
seek(position: number) {
if (!this.currentPlayingNode) {
return;
}
this.libopenmpt._openmpt_module_set_position_seconds(
this.currentPlayingNode.modulePtr,
position,
);
}
};
ChiptuneJsPlayer.prototype.metadata = function () {
const data = {};
metadata() {
if (this.currentPlayingNode == null) {
return null;
}
const data: {[key: string]: string} = {};
const keys = this.libopenmpt
.UTF8ToString(
this.libopenmpt._openmpt_module_get_metadata_keys(
@ -102,109 +120,87 @@ ChiptuneJsPlayer.prototype.metadata = function () {
this.libopenmpt._free(keyNameBuffer);
}
return data;
};
}
ChiptuneJsPlayer.prototype.unlock = function () {
const context = this.audioContext;
const buffer = context.createBuffer(1, 1, 22050);
const unlockSource = context.createBufferSource();
unlock() {
const buffer = this.audioContext.createBuffer(1, 1, 22050);
const unlockSource = this.audioContext.createBufferSource();
unlockSource.buffer = buffer;
unlockSource.connect(this.context);
this.context.connect(context.destination);
this.context.connect(this.audioContext.destination);
unlockSource.start(0);
this.touchLocked = false;
};
}
ChiptuneJsPlayer.prototype.load = function (input) {
return new Promise((resolve, reject) => {
async load(input: string): Promise<ArrayBuffer> {
if (this.touchLocked) {
this.unlock();
}
if (input instanceof File) {
const reader = new FileReader();
reader.onload = () => {
resolve(reader.result);
};
reader.readAsArrayBuffer(input);
} else {
window
.fetch(input)
.then((response) => {
response
.arrayBuffer()
.then((arrayBuffer) => {
resolve(arrayBuffer);
})
.catch((error) => {
reject(error);
});
})
.catch((error) => {
reject(error);
});
}
});
};
ChiptuneJsPlayer.prototype.play = async function (buffer: ArrayBuffer) {
const response = await fetch(input);
const arrayBuffer = await response.arrayBuffer();
return arrayBuffer;
}
async play(buffer: ArrayBuffer) {
this.unlock();
this.stop();
return this.createLibopenmptNode(buffer, this.buffer).then((processNode) => {
if (processNode === null) {
return;
}
const processNode = await this.createLibopenmptNode(buffer);
this.libopenmpt._openmpt_module_set_repeat_count(
processNode.modulePtr,
this.config.repeatCount ?? 0,
0,
);
this.currentPlayingNode = processNode;
processNode.connect(this.context);
processNode.processNode.connect(this.context);
this.context.connect(this.audioContext.destination);
});
};
}
ChiptuneJsPlayer.prototype.stop = function () {
if (this.currentPlayingNode != null) {
this.currentPlayingNode.disconnect();
stop() {
if (this.currentPlayingNode == null) {
return;
}
this.currentPlayingNode.processNode.disconnect();
this.currentPlayingNode.cleanup();
this.currentPlayingNode = null;
}
};
ChiptuneJsPlayer.prototype.togglePause = function () {
if (this.currentPlayingNode != null) {
togglePause() {
if (this.currentPlayingNode == null) {
return;
}
this.currentPlayingNode.togglePause();
}
};
ChiptuneJsPlayer.prototype.getPattern = function () {
getPattern() {
if (this.currentPlayingNode?.modulePtr) {
return this.libopenmpt._openmpt_module_get_current_pattern(
this.currentPlayingNode.modulePtr,
);
}
return 0;
};
}
ChiptuneJsPlayer.prototype.getRow = function () {
getRow() {
if (this.currentPlayingNode?.modulePtr) {
return this.libopenmpt._openmpt_module_get_current_row(
this.currentPlayingNode.modulePtr,
);
}
return 0;
};
}
ChiptuneJsPlayer.prototype.getNumPatterns = function () {
getNumPatterns() {
if (this.currentPlayingNode?.modulePtr) {
return this.libopenmpt._openmpt_module_get_num_patterns(
this.currentPlayingNode.modulePtr,
);
}
return 0;
};
}
ChiptuneJsPlayer.prototype.getPatternNumRows = function (pattern: number) {
getPatternNumRows(pattern: number) {
if (this.currentPlayingNode?.modulePtr) {
return this.libopenmpt._openmpt_module_get_pattern_num_rows(
this.currentPlayingNode.modulePtr,
@ -212,13 +208,13 @@ ChiptuneJsPlayer.prototype.getPatternNumRows = function (pattern: number) {
);
}
return 0;
};
}
ChiptuneJsPlayer.prototype.getPatternRowChannel = function (
getPatternRowChannel(
pattern: number,
row: number,
channel: number,
) {
) {
if (this.currentPlayingNode?.modulePtr) {
return this.libopenmpt.UTF8ToString(
this.libopenmpt._openmpt_module_format_pattern_row_channel(
@ -232,76 +228,66 @@ ChiptuneJsPlayer.prototype.getPatternRowChannel = function (
);
}
return '';
};
ChiptuneJsPlayer.prototype.createLibopenmptNode = async function (
buffer,
config: object,
) {
const maxFramesPerChunk = 4096;
const processNode = this.audioContext.createScriptProcessor(2048, 0, 2);
processNode.config = config;
processNode.player = this;
}
async createLibopenmptNode(buffer: ArrayBuffer) {
if (!this.libopenmpt) {
const libopenmpt = await import('libopenmpt-wasm');
this.libopenmpt = await libopenmpt.default();
}
return new ChiptuneProcessorNode(this, buffer);
}
}
class ChiptuneProcessorNode {
player: ChiptuneJsPlayer;
processNode: ScriptProcessorNode;
paused: boolean;
nbChannels: number;
patternIndex: number;
modulePtr: number;
leftBufferPtr: number;
rightBufferPtr: number;
constructor(player: ChiptuneJsPlayer, buffer: ArrayBuffer) {
const maxFramesPerChunk = 4096;
this.player = player;
this.processNode = this.player.audioContext.createScriptProcessor(2048, 0, 2);
const libopenmpt = player.libopenmpt;
const byteArray = new Int8Array(buffer);
const ptrToFile = this.libopenmpt._malloc(byteArray.byteLength);
this.libopenmpt.HEAPU8.set(byteArray, ptrToFile);
processNode.modulePtr = this.libopenmpt._openmpt_module_create_from_memory(
const ptrToFile = libopenmpt._malloc(byteArray.byteLength);
libopenmpt.HEAPU8.set(byteArray, ptrToFile);
this.modulePtr = libopenmpt._openmpt_module_create_from_memory(
ptrToFile,
byteArray.byteLength,
0,
0,
0,
);
processNode.nbChannels = this.libopenmpt._openmpt_module_get_num_channels(
processNode.modulePtr,
this.nbChannels = libopenmpt._openmpt_module_get_num_channels(
this.modulePtr,
);
processNode.patternIndex = -1;
processNode.paused = false;
processNode.leftBufferPtr = this.libopenmpt._malloc(4 * maxFramesPerChunk);
processNode.rightBufferPtr = this.libopenmpt._malloc(4 * maxFramesPerChunk);
processNode.cleanup = function () {
if (this.modulePtr !== 0) {
processNode.player.libopenmpt._openmpt_module_destroy(this.modulePtr);
this.modulePtr = 0;
}
if (this.leftBufferPtr !== 0) {
processNode.player.libopenmpt._free(this.leftBufferPtr);
this.leftBufferPtr = 0;
}
if (this.rightBufferPtr !== 0) {
processNode.player.libopenmpt._free(this.rightBufferPtr);
this.rightBufferPtr = 0;
}
};
processNode.stop = function () {
this.disconnect();
this.cleanup();
};
processNode.pause = function () {
this.paused = true;
};
processNode.unpause = function () {
this.patternIndex = -1;
this.paused = false;
};
processNode.togglePause = function () {
this.paused = !this.paused;
};
processNode.onaudioprocess = function (e) {
const outputL = e.outputBuffer.getChannelData(0);
const outputR = e.outputBuffer.getChannelData(1);
this.leftBufferPtr = libopenmpt._malloc(4 * maxFramesPerChunk);
this.rightBufferPtr = libopenmpt._malloc(4 * maxFramesPerChunk);
this.processNode.addEventListener('audioprocess', (ev) => {
const outputL = ev.outputBuffer.getChannelData(0);
const outputR = ev.outputBuffer.getChannelData(1);
let framesToRender = outputL.length;
if (this.ModulePtr === 0) {
if (this.modulePtr === 0) {
for (let i = 0; i < framesToRender; ++i) {
outputL[i] = 0;
outputR[i] = 0;
}
this.disconnect();
this.processNode.disconnect();
this.cleanup();
return;
}
@ -317,24 +303,24 @@ ChiptuneJsPlayer.prototype.createLibopenmptNode = async function (
let error = false;
const currentPattern =
processNode.player.libopenmpt._openmpt_module_get_current_pattern(
this.player.libopenmpt._openmpt_module_get_current_pattern(
this.modulePtr,
);
const currentRow =
processNode.player.libopenmpt._openmpt_module_get_current_row(
this.player.libopenmpt._openmpt_module_get_current_row(
this.modulePtr,
);
if (currentPattern !== this.patternIndex) {
processNode.player.fireEvent('onPatternChange');
this.player.fireEvent('onPatternChange');
}
processNode.player.fireEvent('onRowChange', { index: currentRow });
this.player.fireEvent('onRowChange', { index: currentRow });
while (framesToRender > 0) {
const framesPerChunk = Math.min(framesToRender, maxFramesPerChunk);
const actualFramesPerChunk =
processNode.player.libopenmpt._openmpt_module_read_float_stereo(
this.player.libopenmpt._openmpt_module_read_float_stereo(
this.modulePtr,
this.context.sampleRate,
this.processNode.context.sampleRate,
framesPerChunk,
this.leftBufferPtr,
this.rightBufferPtr,
@ -344,11 +330,11 @@ ChiptuneJsPlayer.prototype.createLibopenmptNode = async function (
// modulePtr will be 0 on openmpt: error: openmpt_module_read_float_stereo: ERROR: module * not valid or other openmpt error
error = !this.modulePtr;
}
const rawAudioLeft = processNode.player.libopenmpt.HEAPF32.subarray(
const rawAudioLeft = this.player.libopenmpt.HEAPF32.subarray(
this.leftBufferPtr / 4,
this.leftBufferPtr / 4 + actualFramesPerChunk,
);
const rawAudioRight = processNode.player.libopenmpt.HEAPF32.subarray(
const rawAudioRight = this.player.libopenmpt.HEAPF32.subarray(
this.rightBufferPtr / 4,
this.rightBufferPtr / 4 + actualFramesPerChunk,
);
@ -364,12 +350,45 @@ ChiptuneJsPlayer.prototype.createLibopenmptNode = async function (
framesRendered += framesPerChunk;
}
if (ended) {
this.disconnect();
this.processNode.disconnect();
this.cleanup();
error
? processNode.player.fireEvent('onError', { type: 'openmpt' })
: processNode.player.fireEvent('onEnded');
? this.player.fireEvent('onError', { type: 'openmpt' })
: this.player.fireEvent('onEnded');
}
};
return processNode;
};
});
}
cleanup() {
if (this.modulePtr !== 0) {
this.player.libopenmpt._openmpt_module_destroy(this.modulePtr);
this.modulePtr = 0;
}
if (this.leftBufferPtr !== 0) {
this.player.libopenmpt._free(this.leftBufferPtr);
this.leftBufferPtr = 0;
}
if (this.rightBufferPtr !== 0) {
this.player.libopenmpt._free(this.rightBufferPtr);
this.rightBufferPtr = 0;
}
}
stop() {
this.processNode.disconnect();
this.cleanup();
}
pause() {
this.paused = true;
}
unpause() {
this.paused = false;
}
togglePause() {
this.paused = !this.paused;
}
}