@doegis/core/views/3d/support/buffer/InterleavedLayout.js

DOE GIS API

import{BufferViewVec2f as e,BufferViewVec2f64 as t,BufferViewVec3f as i,BufferViewVec3f64 as s,BufferViewVec4f as r,BufferViewVec4f64 as n,BufferViewMat3f as h,BufferViewMat3f64 as d,BufferViewMat4f as u,BufferViewMat4f64 as f,BufferViewVec4u8 as p,BufferViewFloat as l,BufferViewFloat64 as a,BufferViewUint8 as o,BufferViewUint16 as c,BufferViewInt8 as F,BufferViewVec2i8 as m,BufferViewVec2i16 as _,BufferViewVec2u8 as y,BufferViewVec4u16 as b,BufferViewUint32 as w}from"../../../../geometry/support/buffer/BufferView.js";import{elementTypeSize as g}from"../../../../geometry/support/buffer/types.js";class v{constructor(e,t){this.layout=e,this.buffer="number"==typeof t?new ArrayBuffer(t*e.stride):t;for(const i of e.fieldNames){const t=e.fields.get(i);this[i]=new t.constructor(this.buffer,t.offset,this.stride)}}get stride(){return this.layout.stride}get count(){return this.buffer.byteLength/this.stride}get byteLength(){return this.buffer.byteLength}getField(e,t){const i=this[e];return i&&i.elementCount===t.ElementCount&&i.elementType===t.ElementType?i:null}slice(e,t){return new v(this.layout,this.buffer.slice(e*this.stride,t*this.stride))}copyFrom(e,t,i,s){const r=this.stride;if(r%4==0){const n=new Uint32Array(e.buffer,t*r,s*r/4);new Uint32Array(this.buffer,i*r,s*r/4).set(n)}else{const n=new Uint8Array(e.buffer,t*r,s*r);new Uint8Array(this.buffer,i*r,s*r).set(n)}}}class N{constructor(){this.stride=0,this.fields=new Map,this.fieldNames=[]}vec2f(t,i){return this._appendField(t,e,i),this}vec2f64(e,i){return this._appendField(e,t,i),this}vec3f(e,t){return this._appendField(e,i,t),this}vec3f64(e,t){return this._appendField(e,s,t),this}vec4f(e,t){return this._appendField(e,r,t),this}vec4f64(e,t){return this._appendField(e,n,t),this}mat3f(e,t){return this._appendField(e,h,t),this}mat3f64(e,t){return this._appendField(e,d,t),this}mat4f(e,t){return this._appendField(e,u,t),this}mat4f64(e,t){return this._appendField(e,f,t),this}vec4u8(e,t){return this._appendField(e,p,t),this}f32(e,t){return this._appendField(e,l,t),this}f64(e,t){return this._appendField(e,a,t),this}u8(e,t){return this._appendField(e,o,t),this}u16(e,t){return this._appendField(e,c,t),this}i8(e,t){return this._appendField(e,F,t),this}vec2i8(e,t){return this._appendField(e,m,t),this}vec2i16(e,t){return this._appendField(e,_,t),this}vec2u8(e,t){return this._appendField(e,y,t),this}vec4u16(e,t){return this._appendField(e,b,t),this}u32(e,t){return this._appendField(e,w,t),this}_appendField(e,t,i){const s=t.ElementCount*g(t.ElementType),r=this.stride;this.fields.set(e,{size:s,constructor:t,offset:r,optional:i}),this.stride+=s,this.fieldNames.push(e)}alignTo(e){return this.stride=Math.floor((this.stride+e-1)/e)*e,this}hasField(e){return this.fieldNames.includes(e)}createBuffer(e){return new v(this,e)}createView(e){return new v(this,e)}clone(){const e=new N;return e.stride=this.stride,e.fields=new Map,this.fields.forEach(((t,i)=>e.fields.set(i,t))),e.fieldNames=this.fieldNames.slice(),e.BufferType=this.BufferType,e}}function T(){return new N}export{v as InterleavedBuffer,N as InterleavedLayout,T as newLayout};