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202
Kha/Kinc/Backends/System/Wasm/JS-Sources/audio-thread.js
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202
Kha/Kinc/Backends/System/Wasm/JS-Sources/audio-thread.js
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// from https://developer.mozilla.org/en-US/docs/Web/API/AudioWorkletNode
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function create_thread(func) {
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}
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class AudioThread extends AudioWorkletProcessor {
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constructor(options) {
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super();
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const self = this;
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this.port.onmessageerror = (e) => {
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this.port.postMessage('Error: ' + JSON.stringify(e));
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};
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const mod = options.processorOptions.mod;
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const memory = options.processorOptions.memory;
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const importObject = {
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env: { memory },
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imports: {
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imported_func: arg => console.log('thread: ' + arg),
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create_thread,
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glViewport: function(x, y, width, height) { },
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glScissor: function(x, y, width, height) { },
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glGetIntegerv: function(pname, data) { },
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glGetFloatv: function(pname, data) { },
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glGetString: function(name) { },
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glDrawElements: function(mode, count, type, offset) { },
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glDrawElementsInstanced: function(mode, count, type, indices, instancecount) { },
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glVertexAttribDivisor: function(index, divisor) { },
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glBindFramebuffer: function(target, framebuffer) { },
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glFramebufferTexture2D: function(target, attachment, textarget, texture, level) { },
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glGenFramebuffers: function(n, framebuffers) { },
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glGenRenderbuffers: function(n, renderbuffers) { },
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glBindRenderbuffer: function(target, renderbuffer) { },
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glRenderbufferStorage: function(target, internalformat, width, height) { },
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glFramebufferRenderbuffer: function(target, attachment, renderbuffertarget, renderbuffer) { },
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glReadPixels: function(x, y, width, height, format, type, data) { },
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glTexSubImage2D: function(target, level, xoffset, yoffset, width, height, format, type, pixels) { },
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glEnable: function(cap) { },
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glDisable: function(cap) { },
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glColorMask: function(red, green, blue, alpha) { },
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glClearColor: function(red, green, blue, alpha) { },
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glDepthMask: function(flag) { },
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glClearDepthf: function(depth) { },
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glStencilMask: function(mask) { },
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glClearStencil: function(s) { },
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glClear: function(mask) { },
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glBindBuffer: function(target, buffer) { },
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glUseProgram: function(program) { },
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glStencilMaskSeparate: function(face, mask) { },
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glStencilOpSeparate: function(face, fail, zfail, zpass) { },
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glStencilFuncSeparate: function(face, func, ref, mask) { },
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glDepthFunc: function(func) { },
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glCullFace: function(mode) { },
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glBlendFuncSeparate: function(src_rgb, dst_rgb, src_alpha, dst_alpha) { },
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glBlendEquationSeparate: function(mode_rgb, mode_alpha) { },
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glGenBuffers: function(n, buffers) { },
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glBufferData: function(target, size, data, usage) { },
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glCreateProgram: function() { },
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glAttachShader: function(program, shader) { },
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glBindAttribLocation: function(program, index, name) { },
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glLinkProgram: function(program) { },
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glGetProgramiv: function(program, pname, params) { },
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glGetProgramInfoLog: function(program) { },
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glCreateShader: function(type) { },
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glShaderSource: function(shader, count, source, length) { },
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glCompileShader: function(shader) { },
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glGetShaderiv: function(shader, pname, params) { },
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glGetShaderInfoLog: function(shader) { },
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glBufferSubData: function(target, offset, size, data) { },
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glEnableVertexAttribArray: function(index) { },
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glVertexAttribPointer: function(index, size, type, normalized, stride, offset) { },
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glDisableVertexAttribArray: function(index) { },
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glGetUniformLocation: function(program, name) { },
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glUniform1i: function(location, v0) { },
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glUniform2i: function(location, v0, v1) { },
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glUniform3i: function(location, v0, v1, v2) { },
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glUniform4i: function(location, v0, v1, v2, v3) { },
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glUniform1iv: function(location, count, value) { },
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glUniform2iv: function(location, count, value) { },
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glUniform3iv: function(location, count, value) { },
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glUniform4iv: function(location, count, value) { },
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glUniform1f: function(location, v0) { },
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glUniform2f: function(location, v0, v1) { },
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glUniform3f: function(location, v0, v1, v2) { },
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glUniform4f: function(location, v0, v1, v2, v3) { },
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glUniform1fv: function(location, count, value) { },
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glUniform2fv: function(location, count, value) { },
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glUniform3fv: function(location, count, value) { },
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glUniform4fv: function(location, count, value) { },
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glUniformMatrix3fv: function(location, count, transpose, value) { },
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glUniformMatrix4fv: function(location, count, transpose, value) { },
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glTexParameterf: function(target, pname, param) { },
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glActiveTexture: function(texture) { },
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glBindTexture: function(target, texture) { },
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glTexParameteri: function(target, pname, param) { },
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glGetActiveUniform: function(program, index, bufSize, length, size, type, name) { },
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glGenTextures: function(n, textures) { },
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glTexImage2D: function(target, level, internalformat, width, height, border, format, type, data) { },
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glPixelStorei: function(pname, param) { },
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glCompressedTexImage2D: function(target, level, internalformat, width, height, border, imageSize, data) { },
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glDrawBuffers: function(n, bufs) { },
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glGenerateMipmap: function(target) { },
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glFlush: function() { },
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glDeleteBuffers: function(n, buffers) { },
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glDeleteTextures: function(n, textures) { },
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glDeleteFramebuffers: function(n, framebuffers) { },
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glDeleteProgram: function(program) { },
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glDeleteShader: function(shader) { },
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js_fprintf: function(format) {
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console.log(read_string(format));
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},
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js_fopen: function(filename) {
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return 0;
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},
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js_ftell: function(stream) {
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return 0;
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},
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js_fseek: function(stream, offset, origin) {
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return 0;
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},
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js_fread: function(ptr, size, count, stream) {
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return 0;
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},
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js_time: function() {
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return window.performance.now();
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},
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js_pow: function(x) {
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return Math.pow(x);
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},
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js_floor: function(x) {
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return Math.floor(x);
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},
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js_sin: function(x) {
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return Math.sin(x);
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},
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js_cos: function(x) {
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return Math.cos(x);
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},
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js_tan: function(x) {
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return Math.tan(x);
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},
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js_log: function(base, exponent) {
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return Math.log(base, exponent);
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},
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js_exp: function(x) {
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return Math.exp(x);
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},
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js_sqrt: function(x) {
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return Math.sqrt(x);
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},
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js_eval: function(str) { }
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}
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};
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WebAssembly.instantiate(mod, importObject).then((instance) => {
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this.port.postMessage('Running audio thread');
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self.audio_func = instance.exports.audio_func;
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self.audio_pointer = instance.exports.malloc(16 * 1024);
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this.port.postMessage('Audio pointer: ' + self.audio_pointer);
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this.port.postMessage('Memory byteLength: ' + memory.buffer.byteLength);
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self.audio_data = new Float32Array(
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memory.buffer,
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self.audio_pointer,
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16 * 256
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);
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});
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}
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process(inputs, outputs, parameters) {
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const output = outputs[0];
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const data = output[0];
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//for (let i = 0; i < data.length; ++i) {
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// data[i] = Math.random() * 2 - 1;
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//}
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if (this.audio_func) {
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let offset = 0;
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for (;;) {
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const length = Math.min(data.length - offset, this.audio_data.length);
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this.audio_func(this.audio_pointer + offset, length);
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for (let i = 0; i < length; ++i) {
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data[offset + i] = this.audio_data[i];
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}
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if (offset + this.audio_data.length >= data.length) {
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break;
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}
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offset += this.audio_data.length;
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}
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}
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return true;
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}
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}
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registerProcessor('audio-thread', AudioThread);
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