114 lines
4.7 KiB
JavaScript
114 lines
4.7 KiB
JavaScript
"use strict";
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var core = require("@pixi/core");
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class ParticleBuffer {
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/**
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* @param {object} properties - The properties to upload.
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* @param {boolean[]} dynamicPropertyFlags - Flags for which properties are dynamic.
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* @param {number} size - The size of the batch.
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*/
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constructor(properties, dynamicPropertyFlags, size) {
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this.geometry = new core.Geometry(), this.indexBuffer = null, this.size = size, this.dynamicProperties = [], this.staticProperties = [];
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for (let i = 0; i < properties.length; ++i) {
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let property = properties[i];
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property = {
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attributeName: property.attributeName,
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size: property.size,
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uploadFunction: property.uploadFunction,
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type: property.type || core.TYPES.FLOAT,
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offset: property.offset
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}, dynamicPropertyFlags[i] ? this.dynamicProperties.push(property) : this.staticProperties.push(property);
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}
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this.staticStride = 0, this.staticBuffer = null, this.staticData = null, this.staticDataUint32 = null, this.dynamicStride = 0, this.dynamicBuffer = null, this.dynamicData = null, this.dynamicDataUint32 = null, this._updateID = 0, this.initBuffers();
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}
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/** Sets up the renderer context and necessary buffers. */
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initBuffers() {
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const geometry = this.geometry;
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let dynamicOffset = 0;
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this.indexBuffer = new core.Buffer(core.utils.createIndicesForQuads(this.size), !0, !0), geometry.addIndex(this.indexBuffer), this.dynamicStride = 0;
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for (let i = 0; i < this.dynamicProperties.length; ++i) {
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const property = this.dynamicProperties[i];
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property.offset = dynamicOffset, dynamicOffset += property.size, this.dynamicStride += property.size;
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}
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const dynBuffer = new ArrayBuffer(this.size * this.dynamicStride * 4 * 4);
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this.dynamicData = new Float32Array(dynBuffer), this.dynamicDataUint32 = new Uint32Array(dynBuffer), this.dynamicBuffer = new core.Buffer(this.dynamicData, !1, !1);
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let staticOffset = 0;
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this.staticStride = 0;
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for (let i = 0; i < this.staticProperties.length; ++i) {
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const property = this.staticProperties[i];
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property.offset = staticOffset, staticOffset += property.size, this.staticStride += property.size;
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}
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const statBuffer = new ArrayBuffer(this.size * this.staticStride * 4 * 4);
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this.staticData = new Float32Array(statBuffer), this.staticDataUint32 = new Uint32Array(statBuffer), this.staticBuffer = new core.Buffer(this.staticData, !0, !1);
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for (let i = 0; i < this.dynamicProperties.length; ++i) {
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const property = this.dynamicProperties[i];
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geometry.addAttribute(
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property.attributeName,
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this.dynamicBuffer,
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0,
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property.type === core.TYPES.UNSIGNED_BYTE,
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property.type,
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this.dynamicStride * 4,
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property.offset * 4
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);
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}
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for (let i = 0; i < this.staticProperties.length; ++i) {
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const property = this.staticProperties[i];
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geometry.addAttribute(
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property.attributeName,
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this.staticBuffer,
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0,
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property.type === core.TYPES.UNSIGNED_BYTE,
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property.type,
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this.staticStride * 4,
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property.offset * 4
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);
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}
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}
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/**
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* Uploads the dynamic properties.
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* @param children - The children to upload.
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* @param startIndex - The index to start at.
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* @param amount - The number to upload.
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*/
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uploadDynamic(children, startIndex, amount) {
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for (let i = 0; i < this.dynamicProperties.length; i++) {
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const property = this.dynamicProperties[i];
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property.uploadFunction(
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children,
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startIndex,
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amount,
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property.type === core.TYPES.UNSIGNED_BYTE ? this.dynamicDataUint32 : this.dynamicData,
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this.dynamicStride,
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property.offset
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);
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}
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this.dynamicBuffer._updateID++;
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}
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/**
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* Uploads the static properties.
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* @param children - The children to upload.
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* @param startIndex - The index to start at.
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* @param amount - The number to upload.
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*/
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uploadStatic(children, startIndex, amount) {
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for (let i = 0; i < this.staticProperties.length; i++) {
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const property = this.staticProperties[i];
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property.uploadFunction(
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children,
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startIndex,
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amount,
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property.type === core.TYPES.UNSIGNED_BYTE ? this.staticDataUint32 : this.staticData,
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this.staticStride,
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property.offset
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);
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}
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this.staticBuffer._updateID++;
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}
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/** Destroys the ParticleBuffer. */
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destroy() {
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this.indexBuffer = null, this.dynamicProperties = null, this.dynamicBuffer = null, this.dynamicData = null, this.dynamicDataUint32 = null, this.staticProperties = null, this.staticBuffer = null, this.staticData = null, this.staticDataUint32 = null, this.geometry.destroy();
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}
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}
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exports.ParticleBuffer = ParticleBuffer;
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//# sourceMappingURL=ParticleBuffer.js.map
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