@animech-public/playcanvas
Version:
PlayCanvas WebGL game engine
2 lines (1 loc) • 34.4 kB
JavaScript
import{path as e}from"../../core/path.js";import{Color as t}from"../../core/math/color.js";import{Mat4 as n}from"../../core/math/mat4.js";import{math as s}from"../../core/math/math.js";import{Vec2 as r}from"../../core/math/vec2.js";import{Vec3 as o}from"../../core/math/vec3.js";import{BoundingBox as a}from"../../core/shape/bounding-box.js";import{CULLFACE_NONE as i,CULLFACE_BACK as l,INDEXFORMAT_UINT32 as c,INDEXFORMAT_UINT16 as u,INDEXFORMAT_UINT8 as p,BUFFER_STATIC as h,FILTER_LINEAR_MIPMAP_LINEAR as f,FILTER_NEAREST_MIPMAP_LINEAR as m,FILTER_LINEAR_MIPMAP_NEAREST as d,FILTER_NEAREST_MIPMAP_NEAREST as y,FILTER_LINEAR as g,FILTER_NEAREST as w,ADDRESS_REPEAT as v,ADDRESS_MIRRORED_REPEAT as O,ADDRESS_CLAMP_TO_EDGE as x,PRIMITIVE_TRIANGLES as P,PRIMITIVE_TRIFAN as b,PRIMITIVE_TRISTRIP as T,PRIMITIVE_LINESTRIP as M,PRIMITIVE_LINELOOP as C,PRIMITIVE_LINES as _,PRIMITIVE_POINTS as R,SEMANTIC_NORMAL as A,SEMANTIC_COLOR as k,TYPE_UINT8 as E,TYPE_UINT16 as F,TYPE_FLOAT32 as j,TYPE_UINT32 as S,TYPE_INT32 as I,TYPE_INT16 as V,TYPE_INT8 as D,SEMANTIC_POSITION as U,SEMANTIC_TANGENT as H,SEMANTIC_BLENDINDICES as L,SEMANTIC_BLENDWEIGHT as K,SEMANTIC_TEXCOORD0 as N,SEMANTIC_TEXCOORD1 as $,SEMANTIC_TEXCOORD2 as G,SEMANTIC_TEXCOORD3 as z,SEMANTIC_TEXCOORD4 as B,SEMANTIC_TEXCOORD5 as X,SEMANTIC_TEXCOORD6 as W,SEMANTIC_TEXCOORD7 as J,typedArrayTypesByteSize as Y,typedArrayTypes as q}from"../../platform/graphics/constants.js";import{IndexBuffer as Q}from"../../platform/graphics/index-buffer.js";import{Texture as Z}from"../../platform/graphics/texture.js";import{VertexBuffer as ee}from"../../platform/graphics/vertex-buffer.js";import{VertexFormat as te}from"../../platform/graphics/vertex-format.js";import{http as ne}from"../../platform/net/http.js";import{SPECOCC_AO as se,BLEND_NONE as re,BLEND_NORMAL as oe,PROJECTION_ORTHOGRAPHIC as ae,PROJECTION_PERSPECTIVE as ie,ASPECT_AUTO as le,LIGHTFALLOFF_INVERSESQUARED as ce,ASPECT_MANUAL as ue}from"../../scene/constants.js";import{GraphNode 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r;e&&(t=null!=(r=t)?r:{},e.minFilter=n(t.minFilter,f),e.magFilter=n(t.magFilter,g),e.addressU=s(t.wrapS,v),e.addressV=s(t.wrapT,v))})(r.resource,(null!=(s=e.samplers)?s:[])[n.sampler]),r}))})),u&&(s=s.then((e=>(u(n,e),e)))),s}))},yt=(e,t,n)=>{e&&e.toLowerCase().endsWith(".glb")||(()=>{const e=new Uint8Array(t);return 103===e[0]&&108===e[1]&&84===e[2]&&70===e[3]})()?((e,t)=>{const n=e instanceof ArrayBuffer?new DataView(e):new DataView(e.buffer,e.byteOffset,e.byteLength),s=n.getUint32(0,!0),r=n.getUint32(4,!0),o=n.getUint32(8,!0);if(1179937895!==s)return void t(`Invalid magic number found in glb header. Expected 0x46546C67, found 0x${s.toString(16)}`);if(2!==r)return void t(`Invalid version number found in glb header. Expected 2, found ${r}`);if(o<=0||o>n.byteLength)return void t(`Invalid length found in glb header. Found ${o}`);const a=[];let i=12;for(;i<o;){const e=n.getUint32(i,!0);i+e+8>n.byteLength&&t(`Invalid chunk length found in glb. Found ${e}`);const s=n.getUint32(i+4,!0),r=new Uint8Array(n.buffer,n.byteOffset+i+8,e);a.push({length:e,type:s,data:r}),i+=e+8}1===a.length||2===a.length?1313821514===a[0].type?a.length>1&&5130562!==a[1].type?t(`Invalid chunk type found in glb file. Expected 0x004E4942, found 0x${a[1].type.toString(16)}`):t(null,{gltfChunk:a[0].data,binaryChunk:2===a.length?a[1].data:null}):t(`Invalid chunk type found in glb file. Expected 0x4E4F534A, found 0x${a[0].type.toString(16)}`):t("Invalid number of chunks found in glb file.")})(t,n):n(null,{gltfChunk:t,binaryChunk:null})};class gt{static parse(t,n,s,r,o,a,i){yt(t,s,((t,s)=>{t?i(t):((e,t)=>{const n=JSON.parse((e=>{if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(e);let t="";for(let n=0;n<e.length;n++)t+=String.fromCharCode(e[n]);return decodeURIComponent(escape(t))})(e));n.asset&&n.asset.version&&parseFloat(n.asset.version)<2?t(`Invalid gltf version. Expected version 2.0 or above but found version '${n.asset.version}'.`):t(null,n)})(s.gltfChunk,((t,l)=>{if(t)return void i(t);const c=((t,n,s,r)=>{var o,a,i;if(!t.buffers||0===t.buffers.length)return[];const l=null==r||null==(o=r.buffer)?void 0:o.preprocess,c=null==r||null==(a=r.buffer)?void 0:a.processAsync,u=null==r||null==(i=r.buffer)?void 0:i.postprocess;return t.buffers.map(((r,o)=>{let a;return l&&l(r),a=new Promise(c?(e,t)=>{c(r,((n,s)=>{n?t(n):e(s)}))}:e=>{e(null)}),a=a.then((t=>{if(t)return t;if(r.hasOwnProperty("uri")){if(Fe(r.uri)){const e=atob(r.uri.split(",")[1]),t=new Uint8Array(e.length);for(let n=0;n<e.length;n++)t[n]=e.charCodeAt(n);return t}return new Promise(((t,n)=>{ne.get(Ae.test(r.uri)?r.uri:e.join(s,r.uri),{cache:!0,responseType:"arraybuffer",retry:!1},((e,s)=>{e?n(e):t(new Uint8Array(s))}))}))}return n})),u&&(a=a.then((e=>(u(t.buffers[o],e),e)))),a}))})(l,s.binaryChunk,n,a),u=((e,t,n)=>{var s,r,o,a;const i=[],l=null==n||null==(s=n.bufferView)?void 0:s.preprocess,c=null==n||null==(r=n.bufferView)?void 0:r.processAsync,u=null==n||null==(o=n.bufferView)?void 0:o.postprocess;if(null==(a=e.bufferViews)||!a.length)return i;for(let n=0;n<e.bufferViews.length;++n){const s=e.bufferViews[n];let r;l&&l(s),r=new Promise(c?(e,n)=>{c(s,t,((t,s)=>{t?n(t):e(s)}))}:e=>{e(null)}),r=r.then((e=>e||t[s.buffer].then((e=>new Uint8Array(e.buffer,e.byteOffset+(s.byteOffset||0),s.byteLength))))),s.hasOwnProperty("byteStride")&&(r=r.then((e=>(e.byteStride=s.byteStride,e)))),u&&(r=r.then((e=>(u(s,e),e)))),i.push(r)}return i})(l,c,a),p=((t,n,s,r,o)=>{var a,i,l;if(!t.images||0===t.images.length)return[];const c=null==o||null==(a=o.image)?void 0:a.preprocess,u=null==o||null==(i=o.image)?void 0:i.processAsync,p=null==o||null==(l=o.image)?void 0:l.postprocess,h={"image/png":"png","image/jpeg":"jpg","image/basis":"basis","image/ktx":"ktx","image/ktx2":"ktx2","image/vnd-ms.dds":"dds"},f=(e,t,n,s,o)=>new Promise(((a,i)=>{const l=n=>{const l=`${e.name||"gltf-texture"}-${mt++}`,c={url:t||l};if(n&&(c.contents=n.slice(0).buffer),s){const e=h[s];e&&(c.filename=`${c.url}.${e}`)}const u=new Re(l,"texture",c,null,o);u.on("load",(e=>a(e))),u.on("error",(e=>i(e))),r.add(u),r.load(u)};n?n.then((e=>l(e))):l(null)}));return t.images.map(((t,r)=>{let o;return c&&c(t),o=new Promise(u?(e,n)=>{u(t,((t,s)=>{t?n(t):e(s)}))}:e=>{e(null)}),o=o.then((o=>{return o||(t.hasOwnProperty("uri")?Fe(t.uri)?f(t,t.uri,null,(a=t.uri).substring(a.indexOf(":")+1,a.indexOf(";")),null):f(t,Ae.test(t.uri)?t.uri:e.join(s,t.uri),null,null,{crossOrigin:"anonymous"}):t.hasOwnProperty("bufferView")&&t.hasOwnProperty("mimeType")?f(t,null,n[t.bufferView],t.mimeType,null):Promise.reject(new Error(`Invalid image found in gltf (neither uri or bufferView found). index=${r}`)));var a})),p&&(o=o.then((e=>(p(t,e),e)))),o}))})(l,u,n,o,a),h=dt(l,p,a);ft(r,l,u,h,a).then((e=>i(null,e))).catch((e=>i(e)))}))}))}static createDefaultMaterial(){return ot({name:"defaultGlbMaterial"},[])}}export{gt as GlbParser};