26 lines
4.6 KiB
JavaScript
26 lines
4.6 KiB
JavaScript
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/**
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* @license
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* Cesium - https://github.com/CesiumGS/cesium
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* Version 1.98
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*
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* Copyright 2011-2022 Cesium Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Columbus View (Pat. Pend.)
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*
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* Portions licensed separately.
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* See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
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*/
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define(["exports","./Matrix2-cf4c6e69","./ComponentDatatype-9b23164a","./defaultValue-50f7432c"],(function(t,e,n,o){"use strict";const a={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT2:"MAT2",MAT3:"MAT3",MAT4:"MAT4",getMathType:function(t){switch(t){case a.SCALAR:return Number;case a.VEC2:return e.Cartesian2;case a.VEC3:return e.Cartesian3;case a.VEC4:return e.Cartesian4;case a.MAT2:return e.Matrix2;case a.MAT3:return e.Matrix3;case a.MAT4:return e.Matrix4}},getNumberOfComponents:function(t){switch(t){case a.SCALAR:return 1;case a.VEC2:return 2;case a.VEC3:return 3;case a.VEC4:case a.MAT2:return 4;case a.MAT3:return 9;case a.MAT4:return 16}},getAttributeLocationCount:function(t){switch(t){case a.SCALAR:case a.VEC2:case a.VEC3:case a.VEC4:return 1;case a.MAT2:return 2;case a.MAT3:return 3;case a.MAT4:return 4}},getGlslType:function(t){switch(t){case a.SCALAR:return"float";case a.VEC2:return"vec2";case a.VEC3:return"vec3";case a.VEC4:return"vec4";case a.MAT2:return"mat2";case a.MAT3:return"mat3";case a.MAT4:return"mat4"}}};var c=Object.freeze(a);const r=1/256,s={octEncodeInRange:function(t,e,o){if(o.x=t.x/(Math.abs(t.x)+Math.abs(t.y)+Math.abs(t.z)),o.y=t.y/(Math.abs(t.x)+Math.abs(t.y)+Math.abs(t.z)),t.z<0){const t=o.x,e=o.y;o.x=(1-Math.abs(e))*n.CesiumMath.signNotZero(t),o.y=(1-Math.abs(t))*n.CesiumMath.signNotZero(e)}return o.x=n.CesiumMath.toSNorm(o.x,e),o.y=n.CesiumMath.toSNorm(o.y,e),o},octEncode:function(t,e){return s.octEncodeInRange(t,255,e)}},u=new e.Cartesian2,i=new Uint8Array(1);function C(t){return i[0]=t,i[0]}s.octEncodeToCartesian4=function(t,e){return s.octEncodeInRange(t,65535,u),e.x=C(u.x*r),e.y=C(u.x),e.z=C(u.y*r),e.w=C(u.y),e},s.octDecodeInRange=function(t,o,a,c){if(c.x=n.CesiumMath.fromSNorm(t,a),c.y=n.CesiumMath.fromSNorm(o,a),c.z=1-(Math.abs(c.x)+Math.abs(c.y)),c.z<0){const t=c.x;c.x=(1-Math.abs(c.y))*n.CesiumMath.signNotZero(t),c.y=(1-Math.abs(t))*n.CesiumMath.signNotZero(c.y)}return e.Cartesian3.normalize(c,c)},s.octDecode=function(t,e,n){return s.octDecodeInRange(t,e,255,n)},s.octDecodeFromCartesian4=function(t,e){const n=256*t.x+t.y,o=256*t.z+t.w;return s.octDecodeInRange(n,o,65535,e)},s.octPackFloat=function(t){return 256*t.x+t.y};const M=new e.Cartesian2;function f(t){return t>>1^-(1&t)}s.octEncodeFloat=function(t){return s.octEncode(t,M),s.octPackFloat(M)},s.octDecodeFloat=function(t,e){const n=t/256,o=Math.floor(n),a=256*(n-o);return s.octDecode(o,a,e)},s.octPack=function(t,e,n,o){const a=s.octEncodeFloat(t),c=s.octEncodeFloat(e),r=s.octEncode(n,M);return o.x=65536*r.x+a,o.y=65536*r.y+c,o},s.octUnpack=function(t,e,n,o){let a=t.x/65536;const c=Math.floor(a),r=65536*(a-c);a=t.y/65536;const u=Math.floor(a),i=65536*(a-u);s.octDecodeFloat(r,e),s.octDecodeFloat(i,n),s.octDecode(c,u,o)},s.compressTextureCoordinates=function(t){return 4096*(4095*t.x|0)+(4095*t.y|0)},s.decompressTextureCoordinates=function(t,e){const n=t/4096,o=Math.floor(n);return e.x=o/4095,e.y=(t-4096*o)/4095,e},s.zigZagDeltaDecode=function(t,e,n){const a=t.length;let c=0,r=0,s=0;for(let u=0;u<a;++u)c+=f(t[u]),r+=f(e[u]),t[u]=c,e[u]=r,o.defined(n)&&(s+=f(n[u]),n[u]=s)},s.dequantize=function(t,e,o,a){const r=c.getNumberOfComponents(o);let s;switch(e){case n.ComponentDatatype.BYTE:s=127;break;case n.ComponentDatatype.UNSIGNED_BYTE:s=255;break;case n.ComponentDatatype.SHORT:s=32767;break;case n.ComponentDatatype.UNSIGNED_SHORT:s=65535;break;case n.ComponentDatatype.INT:s=2147483647;break;case n.ComponentDatatype.UNSIGNED_INT:s=4294967295}const u=new Float32Array(a*r);for(let e=0;e<a;e++)for(let n=0;n<r;n++){const o=e*r+n;u[o]=Math.max(t[o]/s,-1)}return u},s.decodeRGB565=function(t,e){const n=t.length;o.defined(e)||(e=new Float32Array(3*n));const a=1/31,c=1/63;for(let o=0;o<n;o++){const n=t[o],r=n>>11,s=n>>5&63,u=31&n,i=3*o;e[i]=r*a,e[i+1]=s*c,e[i+2]=u*a}return e};var m=s;t.AttributeCompression=m}));
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