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transcodeKTX2.js

transcodeKTX2.js 58 KB
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  1. /**
    2. 

  2.  * @license
    3. 

  3.  * Cesium - https://github.com/CesiumGS/cesium
    4. 

  4.  * Version 1.110.1
    5. 

  5.  *
    6. 

  6.  * Copyright 2011-2022 Cesium Contributors
    7. 

  7.  *
    8. 

  8.  * Licensed under the Apache License, Version 2.0 (the "License");
    9. 

  9.  * you may not use this file except in compliance with the License.
    10. 

  10.  * You may obtain a copy of the License at
    11. 

  11.  *
    12. 

  12.  * http://www.apache.org/licenses/LICENSE-2.0
    13. 

  13.  *
    14. 

  14.  * Unless required by applicable law or agreed to in writing, software
    15. 

  15.  * distributed under the License is distributed on an "AS IS" BASIS,
    16. 

  16.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    17. 

  17.  * See the License for the specific language governing permissions and
    18. 

  18.  * limitations under the License.
    19. 

  19.  *
    20. 

  20.  * Columbus View (Pat. Pend.)
    21. 

  21.  *
    22. 

  22.  * Portions licensed separately.
    23. 

  23.  * See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
    24. 

  24.  */
    25. 

  25. 

  26. import{a as r_}from"./chunk-N6UO7CHL.js";import{a as K}from"./chunk-6Y3U6IMI.js";import{a as oe}from"./chunk-7DENS74L.js";import{a as n_}from"./chunk-FOJGNIAW.js";import{b as __}from"./chunk-UGI536VH.js";import{a as Gt,c as or,d as sr,e as ge}from"./chunk-BQUQ5TPM.js";var s_=or((it,Pt)=>{var Nt=function(){var i=typeof document<"u"&&document.currentScript?document.currentScript.src:void 0;return typeof __filename<"u"&&(i=i||__filename),function(f){f=f||{};var r=typeof f<"u"?f:{},B,l;r.ready=new Promise(function(e,t){B=e,l=t});var P={},C;for(C in r)r.hasOwnProperty(C)&&(P[C]=r[C]);var h=[],y="./this.program",m=function(e,t){throw t},V=!1,d=!1,p=!1,Q=!1;V=typeof window=="object",d=typeof importScripts=="function",p=typeof process=="object"&&typeof process.versions=="object"&&typeof process.versions.node=="string",Q=!V&&!p&&!d;var u="";function X(e){return r.locateFile?r.locateFile(e,u):u+e}var J,ae,W,ee,g,Fe;p?(d?u=Gt("path").dirname(u)+"/":u=__dirname+"/",J=function(t,_){return 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Rr={VK_FORMAT_UNDEFINED:0,VK_FORMAT_R4G4_UNORM_PACK8:1,VK_FORMAT_R4G4B4A4_UNORM_PACK16:2,VK_FORMAT_B4G4R4A4_UNORM_PACK16:3,VK_FORMAT_R5G6B5_UNORM_PACK16:4,VK_FORMAT_B5G6R5_UNORM_PACK16:5,VK_FORMAT_R5G5B5A1_UNORM_PACK16:6,VK_FORMAT_B5G5R5A1_UNORM_PACK16:7,VK_FORMAT_A1R5G5B5_UNORM_PACK16:8,VK_FORMAT_R8_UNORM:9,VK_FORMAT_R8_SNORM:10,VK_FORMAT_R8_USCALED:11,VK_FORMAT_R8_SSCALED:12,VK_FORMAT_R8_UINT:13,VK_FORMAT_R8_SINT:14,VK_FORMAT_R8_SRGB:15,VK_FORMAT_R8G8_UNORM:16,VK_FORMAT_R8G8_SNORM:17,VK_FORMAT_R8G8_USCALED:18,VK_FORMAT_R8G8_SSCALED:19,VK_FORMAT_R8G8_UINT:20,VK_FORMAT_R8G8_SINT:21,VK_FORMAT_R8G8_SRGB:22,VK_FORMAT_R8G8B8_UNORM:23,VK_FORMAT_R8G8B8_SNORM:24,VK_FORMAT_R8G8B8_USCALED:25,VK_FORMAT_R8G8B8_SSCALED:26,VK_FORMAT_R8G8B8_UINT:27,VK_FORMAT_R8G8B8_SINT:28,VK_FORMAT_R8G8B8_SRGB:29,VK_FORMAT_B8G8R8_UNORM:30,VK_FORMAT_B8G8R8_SNORM:31,VK_FORMAT_B8G8R8_USCALED:32,VK_FORMAT_B8G8R8_SSCALED:33,VK_FORMAT_B8G8R8_UINT:34,VK_FORMAT_B8G8R8_SINT:35,VK_FORMAT_B8G8R8_SRGB:36,VK_FORMAT_R8G8B8A8_UNORM:37,VK_FORMAT_R8G8B8A8_SNORM:38,VK_FORMAT_R8G8B8A8_USCALED:39,VK_FORMAT_R8G8B8A8_SSCALED:40,VK_FORMAT_R8G8B8A8_UINT:41,VK_FORMAT_R8G8B8A8_SINT:42,VK_FORMAT_R8G8B8A8_SRGB:43,VK_FORMAT_B8G8R8A8_UNORM:44,VK_FORMAT_B8G8R8A8_SNORM:45,VK_FORMAT_B8G8R8A8_USCALED:46,VK_FORMAT_B8G8R8A8_SSCALED:47,VK_FORMAT_B8G8R8A8_UINT:48,VK_FORMAT_B8G8R8A8_SINT:49,VK_FORMAT_B8G8R8A8_SRGB:50,VK_FORMAT_A8B8G8R8_UNORM_PACK32:51,VK_FORMAT_A8B8G8R8_SNORM_PACK32:52,VK_FORMAT_A8B8G8R8_USCALED_PACK32:53,VK_FORMAT_A8B8G8R8_SSCALED_PACK32:54,VK_FORMAT_A8B8G8R8_UINT_PACK32:55,VK_FORMAT_A8B8G8R8_SINT_PACK32:56,VK_FORMAT_A8B8G8R8_SRGB_PACK32:57,VK_FORMAT_A2R10G10B10_UNORM_PACK32:58,VK_FORMAT_A2R10G10B10_SNORM_PACK32:59,VK_FORMAT_A2R10G10B10_USCALED_PACK32:60,VK_FORMAT_A2R10G10B10_SSCALED_PACK32:61,VK_FORMAT_A2R10G10B10_UINT_PACK32:62,VK_FORMAT_A2R10G10B10_SINT_PACK32:63,VK_FORMAT_A2B10G10R10_UNORM_PACK32:64,VK_FORMAT_A2B10G10R10_SNORM_PACK32:65,VK_FORMAT_A2B10G10R10_USCALED_PACK32:66,VK_FORMAT_A2B10G10R10_SSCALED_PACK32:67,VK_FORMAT_A2B10G10R10_UINT_PACK32:68,VK_FORMAT_A2B10G10R10_SINT_PACK32:69,VK_FORMAT_R16_UNORM:70,VK_FORMAT_R16_SNORM:71,VK_FORMAT_R16_USCALED:72,VK_FORMAT_R16_SSCALED:73,VK_FORMAT_R16_UINT:74,VK_FORMAT_R16_SINT:75,VK_FORMAT_R16_SFLOAT:76,VK_FORMAT_R16G16_UNORM:77,VK_FORMAT_R16G16_SNORM:78,VK_FORMAT_R16G16_USCALED:79,VK_FORMAT_R16G16_SSCALED:80,VK_FORMAT_R16G16_UINT:81,VK_FORMAT_R16G16_SINT:82,VK_FORMAT_R16G16_SFLOAT:83,VK_FORMAT_R16G16B16_UNORM:84,VK_FORMAT_R16G16B16_SNORM:85,VK_FORMAT_R16G16B16_USCALED:86,VK_FORMAT_R16G16B16_SSCALED:87,VK_FORMAT_R16G16B16_UINT:88,VK_FORMAT_R16G16B16_SINT:89,VK_FORMAT_R16G16B16_SFLOAT:90,VK_FORMAT_R16G16B16A16_UNORM:91,VK_FORMAT_R16G16B16A16_SNORM:92,VK_FORMAT_R16G16B16A16_USCALED:93,VK_FORMAT_R16G16B16A16_SSCALED:94,VK_FORMAT_R16G16B16A16_UINT:95,VK_FORMAT_R16G16B16A16_SINT:96,VK_FORMAT_R16G16B16A16_SFLOAT:97,VK_FORMAT_R32_UINT:98,VK_FORMAT_R32_SINT:99,VK_FORMAT_R32_SFLOAT:100,VK_FORMAT_R32G32_UINT:101,VK_FORMAT_R32G32_SINT:102,VK_FORMAT_R32G32_SFLOAT:103,VK_FORMAT_R32G32B32_UINT:104,VK_FORMAT_R32G32B32_SINT:105,VK_FORMAT_R32G32B32_SFLOAT:106,VK_FORMAT_R32G32B32A32_UINT:107,VK_FORMAT_R32G32B32A32_SINT:108,VK_FORMAT_R32G32B32A32_SFLOAT:109,VK_FORMAT_R64_UINT:110,VK_FORMAT_R64_SINT:111,VK_FORMAT_R64_SFLOAT:112,VK_FORMAT_R64G64_UINT:113,VK_FORMAT_R64G64_SINT:114,VK_FORMAT_R64G64_SFLOAT:115,VK_FORMAT_R64G64B64_UINT:116,VK_FORMAT_R64G64B64_SINT:117,VK_FORMAT_R64G64B64_SFLOAT:118,VK_FORMAT_R64G64B64A64_UINT:119,VK_FORMAT_R64G64B64A64_SINT:120,VK_FORMAT_R64G64B64A64_SFLOAT:121,VK_FORMAT_B10G11R11_UFLOAT_PACK32:122,VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:123,VK_FORMAT_D16_UNORM:124,VK_FORMAT_X8_D24_UNORM_PACK32:125,VK_FORMAT_D32_SFLOAT:126,VK_FORMAT_S8_UINT:127,VK_FORMAT_D16_UNORM_S8_UINT:128,VK_FORMAT_D24_UNORM_S8_UINT:129,VK_FORMAT_D32_SFLOAT_S8_UINT:130,VK_FORMAT_BC1_RGB_UNORM_BLOCK:131,VK_FORMAT_BC1_RGB_SRGB_BLOCK:132,VK_FORMAT_BC1_RGBA_UNORM_BLOCK:133,VK_FORMAT_BC1_RGBA_SRGB_BLOCK:134,VK_FORMAT_BC2_UNORM_BLOCK:135,VK_FORMAT_BC2_SRGB_BLOCK:136,VK_FORMAT_BC3_UNORM_BLOCK:137,VK_FORMAT_BC3_SRGB_BLOCK:138,VK_FORMAT_BC4_UNORM_BLOCK:139,VK_FORMAT_BC4_SNORM_BLOCK:140,VK_FORMAT_BC5_UNORM_BLOCK:141,VK_FORMAT_BC5_SNORM_BLOCK:142,VK_FORMAT_BC6H_UFLOAT_BLOCK:143,VK_FORMAT_BC6H_SFLOAT_BLOCK:144,VK_FORMAT_BC7_UNORM_BLOCK:145,VK_FORMAT_BC7_SRGB_BLOCK:146,VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:147,VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:148,VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:149,VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:150,VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:151,VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:152,VK_FORMAT_EAC_R11_UNORM_BLOCK:153,VK_FORMAT_EAC_R11_SNORM_BLOCK:154,VK_FORMAT_EAC_R11G11_UNORM_BLOCK:155,VK_FORMAT_EAC_R11G11_SNORM_BLOCK:156,VK_FORMAT_ASTC_4x4_UNORM_BLOCK:157,VK_FORMAT_ASTC_4x4_SRGB_BLOCK:158,VK_FORMAT_ASTC_5x4_UNORM_BLOCK:159,VK_FORMAT_ASTC_5x4_SRGB_BLOCK:160,VK_FORMAT_ASTC_5x5_UNORM_BLOCK:161,VK_FORMAT_ASTC_5x5_SRGB_BLOCK:162,VK_FORMAT_ASTC_6x5_UNORM_BLOCK:163,VK_FORMAT_ASTC_6x5_SRGB_BLOCK:164,VK_FORMAT_ASTC_6x6_UNORM_BLOCK:165,VK_FORMAT_ASTC_6x6_SRGB_BLOCK:166,VK_FORMAT_ASTC_8x5_UNORM_BLOCK:167,VK_FORMAT_ASTC_8x5_SRGB_BLOCK:168,VK_FORMAT_ASTC_8x6_UNORM_BLOCK:169,VK_FORMAT_ASTC_8x6_SRGB_BLOCK:170,VK_FORMAT_ASTC_8x8_UNORM_BLOCK:171,VK_FORMAT_ASTC_8x8_SRGB_BLOCK:172,VK_FORMAT_ASTC_10x5_UNORM_BLOCK:173,VK_FORMAT_ASTC_10x5_SRGB_BLOCK:174,VK_FORMAT_ASTC_10x6_UNORM_BLOCK:175,VK_FORMAT_ASTC_10x6_SRGB_BLOCK:176,VK_FORMAT_ASTC_10x8_UNORM_BLOCK:177,VK_FORMAT_ASTC_10x8_SRGB_BLOCK:178,VK_FORMAT_ASTC_10x10_UNORM_BLOCK:179,VK_FORMAT_ASTC_10x10_SRGB_BLOCK:180,VK_FORMAT_ASTC_12x10_UNORM_BLOCK:181,VK_FORMAT_ASTC_12x10_SRGB_BLOCK:182,VK_FORMAT_ASTC_12x12_UNORM_BLOCK:183,VK_FORMAT_ASTC_12x12_SRGB_BLOCK:184,VK_FORMAT_G8B8G8R8_422_UNORM:1000156e3,VK_FORMAT_B8G8R8G8_422_UNORM:1000156001,VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:1000156002,VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:1000156003,VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM:1000156004,VK_FORMAT_G8_B8R8_2PLANE_422_UNORM:1000156005,VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM:1000156006,VK_FORMAT_R10X6_UNORM_PACK16:1000156007,VK_FORMAT_R10X6G10X6_UNORM_2PACK16:1000156008,VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16:1000156009,VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16:1000156010,VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16:1000156011,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16:1000156012,VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16:1000156013,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_422_UNORM_3PACK16:1000156014,VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16:1000156015,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_444_UNORM_3PACK16:1000156016,VK_FORMAT_R12X4_UNORM_PACK16:1000156017,VK_FORMAT_R12X4G12X4_UNORM_2PACK16:1000156018,VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16:1000156019,VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16:1000156020,VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16:1000156021,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16:1000156022,VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16:1000156023,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_422_UNORM_3PACK16:1000156024,VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16:1000156025,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_444_UNORM_3PACK16:1000156026,VK_FORMAT_G16B16G16R16_422_UNORM:1000156027,VK_FORMAT_B16G16R16G16_422_UNORM:1000156028,VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM:1000156029,VK_FORMAT_G16_B16R16_2PLANE_420_UNORM:1000156030,VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM:1000156031,VK_FORMAT_G16_B16R16_2PLANE_422_UNORM:1000156032,VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM:1000156033,VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG:1000054e3,VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG:1000054001,VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG:1000054002,VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG:1000054003,VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG:1000054004,VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG:1000054005,VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG:1000054006,VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG:1000054007,VK_FORMAT_ASTC_4x4_SFLOAT_BLOCK_EXT:1000066e3,VK_FORMAT_ASTC_5x4_SFLOAT_BLOCK_EXT:1000066001,VK_FORMAT_ASTC_5x5_SFLOAT_BLOCK_EXT:1000066002,VK_FORMAT_ASTC_6x5_SFLOAT_BLOCK_EXT:1000066003,VK_FORMAT_ASTC_6x6_SFLOAT_BLOCK_EXT:1000066004,VK_FORMAT_ASTC_8x5_SFLOAT_BLOCK_EXT:1000066005,VK_FORMAT_ASTC_8x6_SFLOAT_BLOCK_EXT:1000066006,VK_FORMAT_ASTC_8x8_SFLOAT_BLOCK_EXT:1000066007,VK_FORMAT_ASTC_10x5_SFLOAT_BLOCK_EXT:1000066008,VK_FORMAT_ASTC_10x6_SFLOAT_BLOCK_EXT:1000066009,VK_FORMAT_ASTC_10x8_SFLOAT_BLOCK_EXT:1000066010,VK_FORMAT_ASTC_10x10_SFLOAT_BLOCK_EXT:1000066011,VK_FORMAT_ASTC_12x10_SFLOAT_BLOCK_EXT:1000066012,VK_FORMAT_ASTC_12x12_SFLOAT_BLOCK_EXT:1000066013,VK_FORMAT_G8B8G8R8_422_UNORM_KHR:1000156e3,VK_FORMAT_B8G8R8G8_422_UNORM_KHR:1000156001,VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM_KHR:1000156002,VK_FORMAT_G8_B8R8_2PLANE_420_UNORM_KHR:1000156003,VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM_KHR:1000156004,VK_FORMAT_G8_B8R8_2PLANE_422_UNORM_KHR:1000156005,VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM_KHR:1000156006,VK_FORMAT_R10X6_UNORM_PACK16_KHR:1000156007,VK_FORMAT_R10X6G10X6_UNORM_2PACK16_KHR:1000156008,VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16_KHR:1000156009,VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16_KHR:1000156010,VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16_KHR:1000156011,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_KHR:1000156012,VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_KHR:1000156013,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_422_UNORM_3PACK16_KHR:1000156014,VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16_KHR:1000156015,VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_444_UNORM_3PACK16_KHR:1000156016,VK_FORMAT_R12X4_UNORM_PACK16_KHR:1000156017,VK_FORMAT_R12X4G12X4_UNORM_2PACK16_KHR:1000156018,VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16_KHR:1000156019,VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16_KHR:1000156020,VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16_KHR:1000156021,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_KHR:1000156022,VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_KHR:1000156023,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_422_UNORM_3PACK16_KHR:1000156024,VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16_KHR:1000156025,VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_444_UNORM_3PACK16_KHR:1000156026,VK_FORMAT_G16B16G16R16_422_UNORM_KHR:1000156027,VK_FORMAT_B16G16R16G16_422_UNORM_KHR:1000156028,VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM_KHR:1000156029,VK_FORMAT_G16_B16R16_2PLANE_420_UNORM_KHR:1000156030,VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM_KHR:1000156031,VK_FORMAT_G16_B16R16_2PLANE_422_UNORM_KHR:1000156032,VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM_KHR:1000156033},Le=Object.freeze(Rr);var Vt=class{constructor(){this.vkFormat=0,this.typeSize=1,this.pixelWidth=0,this.pixelHeight=0,this.pixelDepth=0,this.layerCount=0,this.faceCount=1,this.supercompressionScheme=0,this.levels=[],this.dataFormatDescriptor=[{vendorId:0,descriptorType:0,descriptorBlockSize:0,versionNumber:2,colorModel:0,colorPrimaries:1,transferFunction:2,flags:0,texelBlockDimension:[0,0,0,0],bytesPlane:[0,0,0,0,0,0,0,0],samples:[]}],this.keyValue={},this.globalData=null}},le=class{constructor(f,r,B,l){this._dataView=void 0,this._littleEndian=void 0,this._offset=void 0,this._dataView=new DataView(f.buffer,f.byteOffset+r,B),this._littleEndian=l,this._offset=0}_nextUint8(){let f=this._dataView.getUint8(this._offset);return this._offset+=1,f}_nextUint16(){let f=this._dataView.getUint16(this._offset,this._littleEndian);return this._offset+=2,f}_nextUint32(){let f=this._dataView.getUint32(this._offset,this._littleEndian);return this._offset+=4,f}_nextUint64(){let f=this._dataView.getUint32(this._offset,this._littleEndian),r=this._dataView.getUint32(this._offset+4,this._littleEndian),B=f+2**32*r;return this._offset+=8,B}_nextInt32(){let f=this._dataView.getInt32(this._offset,this._littleEndian);return this._offset+=4,f}_nextUint8Array(f){let r=new Uint8Array(this._dataView.buffer,this._dataView.byteOffset+this._offset,f);return this._offset+=f,r}_skip(f){return this._offset+=f,this}_scan(f,r=0){let B=this._offset,l=0;for(;this._dataView.getUint8(this._offset)!==r&&l<f;)l++,this._offset++;return l<f&&this._offset++,new Uint8Array(this._dataView.buffer,this._dataView.byteOffset+B,l)}};var dr=new Uint8Array([0]),w=[171,75,84,88,32,50,48,187,13,10,26,10];function i_(i){return typeof TextDecoder<"u"?new TextDecoder().decode(i):Buffer.from(i).toString("utf8")}function o_(i){let f=new Uint8Array(i.buffer,i.byteOffset,w.length);if(f[0]!==w[0]||f[1]!==w[1]||f[2]!==w[2]||f[3]!==w[3]||f[4]!==w[4]||f[5]!==w[5]||f[6]!==w[6]||f[7]!==w[7]||f[8]!==w[8]||f[9]!==w[9]||f[10]!==w[10]||f[11]!==w[11])throw new Error("Missing KTX 2.0 identifier.");let r=new Vt,B=17*Uint32Array.BYTES_PER_ELEMENT,l=new le(i,w.length,B,!0);r.vkFormat=l._nextUint32(),r.typeSize=l._nextUint32(),r.pixelWidth=l._nextUint32(),r.pixelHeight=l._nextUint32(),r.pixelDepth=l._nextUint32(),r.layerCount=l._nextUint32(),r.faceCount=l._nextUint32();let P=l._nextUint32();r.supercompressionScheme=l._nextUint32();let C=l._nextUint32(),h=l._nextUint32(),y=l._nextUint32(),m=l._nextUint32(),V=l._nextUint64(),d=l._nextUint64(),p=P*3*8,Q=new le(i,w.length+B,p,!0);for(let L=0;L<P;L++)r.levels.push({levelData:new Uint8Array(i.buffer,i.byteOffset+Q._nextUint64(),Q._nextUint64()),uncompressedByteLength:Q._nextUint64()});let u=new le(i,C,h,!0),X={vendorId:u._skip(4)._nextUint16(),descriptorType:u._nextUint16(),versionNumber:u._nextUint16(),descriptorBlockSize:u._nextUint16(),colorModel:u._nextUint8(),colorPrimaries:u._nextUint8(),transferFunction:u._nextUint8(),flags:u._nextUint8(),texelBlockDimension:[u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8()],bytesPlane:[u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8()],samples:[]},J=6,ae=4,W=(X.descriptorBlockSize/4-J)/ae;for(let L=0;L<W;L++){let j={bitOffset:u._nextUint16(),bitLength:u._nextUint8(),channelType:u._nextUint8(),samplePosition:[u._nextUint8(),u._nextUint8(),u._nextUint8(),u._nextUint8()],sampleLower:-1/0,sampleUpper:1/0};j.channelType&64?(j.sampleLower=u._nextInt32(),j.sampleUpper=u._nextInt32()):(j.sampleLower=u._nextUint32(),j.sampleUpper=u._nextUint32()),X.samples[L]=j}r.dataFormatDescriptor.length=0,r.dataFormatDescriptor.push(X);let ee=new le(i,y,m,!0);for(;ee._offset<m;){let L=ee._nextUint32(),j=ee._scan(L),fe=i_(j);if(r.keyValue[fe]=ee._nextUint8Array(L-j.byteLength-1),fe.match(/^ktx/i)){let xe=i_(r.keyValue[fe]);r.keyValue[fe]=xe.substring(0,xe.lastIndexOf("\0"))}let at=L%4?4-L%4:0;ee._skip(at)}if(d<=0)return r;let g=new le(i,V,d,!0),Fe=g._nextUint16(),ot=g._nextUint16(),te=g._nextUint32(),De=g._nextUint32(),Ie=g._nextUint32(),ce=g._nextUint32(),st=[];for(let L=0;L<P;L++)st.push({imageFlags:g._nextUint32(),rgbSliceByteOffset:g._nextUint32(),rgbSliceByteLength:g._nextUint32(),alphaSliceByteOffset:g._nextUint32(),alphaSliceByteLength:g._nextUint32()});let Ae=V+g._offset,de=Ae+te,be=de+De,Se=be+Ie,we=new Uint8Array(i.buffer,i.byteOffset+Ae,te),He=new Uint8Array(i.buffer,i.byteOffset+de,De),Xe=new Uint8Array(i.buffer,i.byteOffset+be,Ie),Rt=new Uint8Array(i.buffer,i.byteOffset+Se,ce);return r.globalData={endpointCount:Fe,selectorCount:ot,imageDescs:st,endpointsData:we,selectorsData:He,tablesData:Xe,extendedData:Rt},r}var R_=sr(s_(),1),a_=["positiveX","negativeX","positiveY","negativeY","positiveZ","negativeZ"],c_=163,A_=166,me;function ar(i,f){__.typeOf.object("transcoderModule",me);let r=i.ktx2Buffer,B=i.supportedTargetFormats,l;try{l=o_(r)}catch{throw new oe("Invalid KTX2 file.")}if(l.layerCount!==0)throw new oe("KTX2 texture arrays are not supported.");if(l.pixelDepth!==0)throw new oe("KTX2 3D textures are unsupported.");let P=l.dataFormatDescriptor[0],C=new Array(l.levelCount);return l.vkFormat===0&&(P.colorModel===c_||P.colorModel===A_)?Ar(r,l,B,me,f,C):(f.push(r.buffer),cr(l,C)),C}function cr(i,f){let r=i.vkFormat===Le.VK_FORMAT_R8G8B8_SRGB?E.RGB:E.RGBA,B;i.vkFormat===Le.VK_FORMAT_R8G8B8A8_UNORM?B=b.UNSIGNED_BYTE:i.vkFormat===Le.VK_FORMAT_R16G16B16A16_SFLOAT?B=b.HALF_FLOAT:i.vkFormat===Le.VK_FORMAT_R32G32B32A32_SFLOAT&&(B=b.FLOAT);for(let l=0;l<i.levels.length;++l){let P={};f[l]=P;let C=i.levels[l].levelData,h=i.pixelWidth>>l,y=i.pixelHeight>>l,m=h*y*E.componentsLength(r);for(let V=0;V<i.faceCount;++V){let d=C.byteOffset+m*i.typeSize*V,p;!ge(B)||b.sizeInBytes(B)===1?p=new Uint8Array(C.buffer,d,m):b.sizeInBytes(B)===2?p=new Uint16Array(C.buffer,d,m):p=new Float32Array(C.buffer,d,m),P[a_[V]]={internalFormat:r,datatype:B,width:h,height:y,levelBuffer:p}}}}function Ar(i,f,r,B,l,P){let C=new B.KTX2File(i),h=C.getWidth(),y=C.getHeight(),m=C.getLevels(),V=C.getHasAlpha();if(!(h>0)||!(y>0)||!(m>0))throw C.close(),C.delete(),new oe("Invalid KTX2 file");let d,p,Q=f.dataFormatDescriptor[0],u=B.transcoder_texture_format;if(Q.colorModel===c_)if(r.etc)d=V?E.RGBA8_ETC2_EAC:E.RGB8_ETC2,p=V?u.cTFETC2_RGBA:u.cTFETC1_RGB;else if(r.etc1&&!V)d=E.RGB_ETC1,p=u.cTFETC1_RGB;else if(r.s3tc)d=V?E.RGBA_DXT5:E.RGB_DXT1,p=V?u.cTFBC3_RGBA:u.cTFBC1_RGB;else if(r.pvrtc)d=V?E.RGBA_PVRTC_4BPPV1:E.RGB_PVRTC_4BPPV1,p=V?u.cTFPVRTC1_4_RGBA:u.cTFPVRTC1_4_RGB;else if(r.astc)d=E.RGBA_ASTC,p=u.cTFASTC_4x4_RGBA;else if(r.bc7)d=E.RGBA_BC7,p=u.cTFBC7_RGBA;else throw new oe("No transcoding format target available for ETC1S compressed ktx2.");else if(Q.colorModel===A_)if(r.astc)d=E.RGBA_ASTC,p=u.cTFASTC_4x4_RGBA;else if(r.bc7)d=E.RGBA_BC7,p=u.cTFBC7_RGBA;else if(r.s3tc)d=V?E.RGBA_DXT5:E.RGB_DXT1,p=V?u.cTFBC3_RGBA:u.cTFBC1_RGB;else if(r.etc)d=V?E.RGBA8_ETC2_EAC:E.RGB8_ETC2,p=V?u.cTFETC2_RGBA:u.cTFETC1_RGB;else if(r.etc1&&!V)d=E.RGB_ETC1,p=u.cTFETC1_RGB;else if(r.pvrtc)d=V?E.RGBA_PVRTC_4BPPV1:E.RGB_PVRTC_4BPPV1,p=V?u.cTFPVRTC1_4_RGBA:u.cTFPVRTC1_4_RGB;else throw new oe("No transcoding format target available for UASTC compressed ktx2.");if(!C.startTranscoding())throw C.close(),C.delete(),new oe("startTranscoding() failed");for(let X=0;X<f.levels.length;++X){let J={};P[X]=J,h=f.pixelWidth>>X,y=f.pixelHeight>>X;let ae=C.getImageTranscodedSizeInBytes(X,0,0,p.value),W=new Uint8Array(ae),ee=C.transcodeImage(W,X,0,0,p.value,0,-1,-1);if(!ge(ee))throw new oe("transcodeImage() failed.");l.push(W.buffer),J[a_[0]]={internalFormat:d,width:h,height:y,levelBuffer:W}}return C.close(),C.delete(),P}async function fr(i,f){let r=i.webAssemblyConfig,B=n_(R_.default,self.BASIS);return ge(r.wasmBinaryFile)?me=await B(r):me=await B(),me.initializeBasis(),!0}function Tr(i,f){let r=i.webAssemblyConfig;return ge(r)?fr(i,f):ar(i,f)}var yr=r_(Tr);export{yr as default};
    57.