{
  "version": 3,
  "sources": ["index.js", "lib/utils/version.js", "lib/parsers/basis-module-loader.js", "lib/gl-extensions.js", "lib/utils/texture-formats.js", "lib/parsers/parse-ktx.js", "lib/utils/extract-mipmap-images.js", "lib/utils/ktx-format-helper.js", "lib/parsers/parse-basis.js", "basis-loader.js", "lib/parsers/parse-dds.js", "lib/parsers/parse-pvr.js", "lib/parsers/parse-compressed-texture.js", "compressed-texture-loader.js", "crunch-loader.js", "lib/parsers/parse-npy.js", "npy-loader.js", "lib/parsers/crunch-module-loader.js", "lib/encoders/encode-texture.js", "compressed-texture-writer.js", "lib/encoders/encode-ktx2-basis-texture.js", "ktx2-basis-writer.js", "lib/texture-api/load-image.js", "lib/texture-api/generate-url.js", "lib/texture-api/async-deep-map.js", "lib/texture-api/deep-load.js", "lib/texture-api/load-image-array.js", "lib/texture-api/load-image-cube.js"],
  "sourcesContent": ["// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nexport { BasisLoader, BasisWorkerLoader } from \"./basis-loader.js\";\nexport { CompressedTextureLoader, CompressedTextureWorkerLoader } from \"./compressed-texture-loader.js\";\nexport { CrunchLoader } from \"./crunch-loader.js\";\nexport { NPYLoader, NPYWorkerLoader } from \"./npy-loader.js\";\n// Module constants\nexport { BASIS_EXTERNAL_LIBRARIES } from \"./lib/parsers/basis-module-loader.js\";\nexport { CRUNCH_EXTERNAL_LIBRARIES } from \"./lib/parsers/crunch-module-loader.js\";\n// Writers\nexport { CompressedTextureWriter } from \"./compressed-texture-writer.js\";\nexport { KTX2BasisWriter } from \"./ktx2-basis-writer.js\";\nexport const KTX2BasisWriterWorker = {\n    name: 'Basis Universal Supercompressed GPU Texture',\n    id: 'ktx2-basis-writer',\n    module: 'textures',\n    version: VERSION,\n    extensions: ['ktx2'],\n    worker: true,\n    options: {\n        useSRGB: false,\n        qualityLevel: 10,\n        encodeUASTC: false,\n        mipmaps: false\n    }\n};\n// Texture Loading API\nexport { loadImageTexture } from \"./lib/texture-api/load-image.js\";\nexport { loadImageTextureArray } from \"./lib/texture-api/load-image-array.js\";\nexport { loadImageTextureCube } from \"./lib/texture-api/load-image-cube.js\";\n// Utilities\nexport { GL_EXTENSIONS_CONSTANTS } from \"./lib/gl-extensions.js\";\nexport { selectSupportedBasisFormat } from \"./lib/parsers/parse-basis.js\";\nexport { getSupportedGPUTextureFormats } from \"./lib/utils/texture-formats.js\";\n// DEPRECATED\n// @deprecated\nexport { CrunchLoader as CrunchWorkerLoader } from \"./crunch-loader.js\";\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n// Version constant cannot be imported, it needs to correspond to the build version of **this** module.\n// __VERSION__ is injected by babel-plugin-version-inline\n// @ts-ignore TS2304: Cannot find name '__VERSION__'.\nexport const VERSION = typeof \"4.3.1\" !== 'undefined' ? \"4.3.1\" : 'latest';\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { registerJSModules, getJSModuleOrNull } from '@loaders.gl/loader-utils';\nimport { loadLibrary } from '@loaders.gl/worker-utils';\nexport const BASIS_EXTERNAL_LIBRARIES = {\n    /** Basis transcoder, javascript wrapper part */\n    TRANSCODER: 'basis_transcoder.js',\n    /** Basis transcoder, compiled web assembly part */\n    TRANSCODER_WASM: 'basis_transcoder.wasm',\n    /** Basis encoder, javascript wrapper part */\n    ENCODER: 'basis_encoder.js',\n    /** Basis encoder, compiled web assembly part */\n    ENCODER_WASM: 'basis_encoder.wasm'\n};\nlet loadBasisTranscoderPromise;\n/**\n * Loads wasm transcoder module\n * @param options\n * @returns {BasisFile} promise\n */\nexport async function loadBasisTranscoderModule(options) {\n    registerJSModules(options.modules);\n    const basis = getJSModuleOrNull('basis');\n    if (basis) {\n        return basis;\n    }\n    loadBasisTranscoderPromise ||= loadBasisTranscoder(options);\n    return await loadBasisTranscoderPromise;\n}\n/**\n * Loads wasm transcoder module\n * @param options\n * @returns {BasisFile} promise\n */\nasync function loadBasisTranscoder(options) {\n    let BASIS = null;\n    let wasmBinary = null;\n    [BASIS, wasmBinary] = await Promise.all([\n        await loadLibrary(BASIS_EXTERNAL_LIBRARIES.TRANSCODER, 'textures', options),\n        await loadLibrary(BASIS_EXTERNAL_LIBRARIES.TRANSCODER_WASM, 'textures', options)\n    ]);\n    // Depends on how import happened...\n    // @ts-ignore TS2339: Property does not exist on type\n    BASIS = BASIS || globalThis.BASIS;\n    return await initializeBasisTranscoderModule(BASIS, wasmBinary);\n}\n/**\n * Initialize wasm transcoder module\n * @param BasisModule - js part of the module\n * @param wasmBinary - wasm part of the module\n * @returns {BasisFile} promise\n */\nfunction initializeBasisTranscoderModule(BasisModule, wasmBinary) {\n    const options = {};\n    if (wasmBinary) {\n        options.wasmBinary = wasmBinary;\n    }\n    return new Promise((resolve) => {\n        // if you try to return BasisModule the browser crashes!\n        BasisModule(options).then((module) => {\n            const { BasisFile, initializeBasis } = module;\n            initializeBasis();\n            resolve({ BasisFile });\n        });\n    });\n}\nlet loadBasisEncoderPromise;\n/**\n * Loads wasm encoder module\n * @param options\n * @returns {BasisFile, KTX2File} promise\n */\nexport async function loadBasisEncoderModule(options) {\n    const modules = options.modules || {};\n    if (modules.basisEncoder) {\n        return modules.basisEncoder;\n    }\n    loadBasisEncoderPromise = loadBasisEncoderPromise || loadBasisEncoder(options);\n    return await loadBasisEncoderPromise;\n}\n/**\n * Loads wasm encoder module\n * @param options\n * @returns {BasisFile, KTX2File} promise\n */\nasync function loadBasisEncoder(options) {\n    let BASIS_ENCODER = null;\n    let wasmBinary = null;\n    [BASIS_ENCODER, wasmBinary] = await Promise.all([\n        await loadLibrary(BASIS_EXTERNAL_LIBRARIES.ENCODER, 'textures', options),\n        await loadLibrary(BASIS_EXTERNAL_LIBRARIES.ENCODER_WASM, 'textures', options)\n    ]);\n    // Depends on how import happened...\n    // @ts-ignore TS2339: Property does not exist on type\n    BASIS_ENCODER = BASIS_ENCODER || globalThis.BASIS;\n    return await initializeBasisEncoderModule(BASIS_ENCODER, wasmBinary);\n}\n/**\n * Initialize wasm transcoder module\n * @param BasisEncoderModule - js part of the module\n * @param wasmBinary - wasm part of the module\n * @returns {BasisFile, KTX2File} promise\n */\nfunction initializeBasisEncoderModule(BasisEncoderModule, wasmBinary) {\n    const options = {};\n    if (wasmBinary) {\n        options.wasmBinary = wasmBinary;\n    }\n    return new Promise((resolve) => {\n        // if you try to return BasisModule the browser crashes!\n        BasisEncoderModule(options).then((module) => {\n            const { BasisFile, KTX2File, initializeBasis, BasisEncoder } = module;\n            initializeBasis();\n            resolve({ BasisFile, KTX2File, BasisEncoder });\n        });\n    });\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n/* eslint-disable camelcase */\nexport const GL_EXTENSIONS_CONSTANTS = {\n    // WEBGL_compressed_texture_s3tc\n    COMPRESSED_RGB_S3TC_DXT1_EXT: 0x83f0,\n    COMPRESSED_RGBA_S3TC_DXT1_EXT: 0x83f1,\n    COMPRESSED_RGBA_S3TC_DXT3_EXT: 0x83f2,\n    COMPRESSED_RGBA_S3TC_DXT5_EXT: 0x83f3,\n    // WEBGL_compressed_texture_es3\n    COMPRESSED_R11_EAC: 0x9270,\n    COMPRESSED_SIGNED_R11_EAC: 0x9271,\n    COMPRESSED_RG11_EAC: 0x9272,\n    COMPRESSED_SIGNED_RG11_EAC: 0x9273,\n    COMPRESSED_RGB8_ETC2: 0x9274,\n    COMPRESSED_RGBA8_ETC2_EAC: 0x9275,\n    COMPRESSED_SRGB8_ETC2: 0x9276,\n    COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: 0x9277,\n    COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9278,\n    COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9279,\n    // WEBGL_compressed_texture_pvrtc\n    COMPRESSED_RGB_PVRTC_4BPPV1_IMG: 0x8c00,\n    COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: 0x8c02,\n    COMPRESSED_RGB_PVRTC_2BPPV1_IMG: 0x8c01,\n    COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: 0x8c03,\n    // WEBGL_compressed_texture_etc1\n    COMPRESSED_RGB_ETC1_WEBGL: 0x8d64,\n    // WEBGL_compressed_texture_atc\n    COMPRESSED_RGB_ATC_WEBGL: 0x8c92,\n    COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL: 0x8c93,\n    COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL: 0x87ee,\n    // WEBGL_compressed_texture_astc\n    COMPRESSED_RGBA_ASTC_4X4_KHR: 0x93b0,\n    COMPRESSED_RGBA_ASTC_5X4_KHR: 0x93b1,\n    COMPRESSED_RGBA_ASTC_5X5_KHR: 0x93b2,\n    COMPRESSED_RGBA_ASTC_6X5_KHR: 0x93b3,\n    COMPRESSED_RGBA_ASTC_6X6_KHR: 0x93b4,\n    COMPRESSED_RGBA_ASTC_8X5_KHR: 0x93b5,\n    COMPRESSED_RGBA_ASTC_8X6_KHR: 0x93b6,\n    COMPRESSED_RGBA_ASTC_8X8_KHR: 0x93b7,\n    COMPRESSED_RGBA_ASTC_10X5_KHR: 0x93b8,\n    COMPRESSED_RGBA_ASTC_10X6_KHR: 0x93b9,\n    COMPRESSED_RGBA_ASTC_10X8_KHR: 0x93ba,\n    COMPRESSED_RGBA_ASTC_10X10_KHR: 0x93bb,\n    COMPRESSED_RGBA_ASTC_12X10_KHR: 0x93bc,\n    COMPRESSED_RGBA_ASTC_12X12_KHR: 0x93bd,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_4X4_KHR: 0x93d0,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_5X4_KHR: 0x93d1,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_5X5_KHR: 0x93d2,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_6X5_KHR: 0x93d3,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_6X6_KHR: 0x93d4,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_8X5_KHR: 0x93d5,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_8X6_KHR: 0x93d6,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_8X8_KHR: 0x93d7,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_10X5_KHR: 0x93d8,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_10X6_KHR: 0x93d9,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_10X8_KHR: 0x93da,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_10X10_KHR: 0x93db,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_12X10_KHR: 0x93dc,\n    COMPRESSED_SRGB8_ALPHA8_ASTC_12X12_KHR: 0x93dd,\n    // EXT_texture_compression_rgtc\n    COMPRESSED_RED_RGTC1_EXT: 0x8dbb,\n    COMPRESSED_SIGNED_RED_RGTC1_EXT: 0x8dbc,\n    COMPRESSED_RED_GREEN_RGTC2_EXT: 0x8dbd,\n    COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: 0x8dbe,\n    // WEBGL_compressed_texture_s3tc_srgb\n    COMPRESSED_SRGB_S3TC_DXT1_EXT: 0x8c4c,\n    COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 0x8c4d,\n    COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 0x8c4e,\n    COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 0x8c4f\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nconst BROWSER_PREFIXES = ['', 'WEBKIT_', 'MOZ_'];\nconst WEBGL_EXTENSIONS = {\n    /* eslint-disable camelcase */\n    WEBGL_compressed_texture_s3tc: 'dxt',\n    WEBGL_compressed_texture_s3tc_srgb: 'dxt-srgb',\n    WEBGL_compressed_texture_etc1: 'etc1',\n    WEBGL_compressed_texture_etc: 'etc2',\n    WEBGL_compressed_texture_pvrtc: 'pvrtc',\n    WEBGL_compressed_texture_atc: 'atc',\n    WEBGL_compressed_texture_astc: 'astc',\n    EXT_texture_compression_rgtc: 'rgtc'\n    /* eslint-enable camelcase */\n};\nlet formats = null;\n/**\n * Returns a list of formats.\n * Creates a temporary WebGLRenderingContext if none is provided.\n *\n * @param gl - Optional context.\n */\nexport function getSupportedGPUTextureFormats(gl) {\n    if (!formats) {\n        gl = gl || getWebGLContext() || undefined;\n        formats = new Set();\n        for (const prefix of BROWSER_PREFIXES) {\n            for (const extension in WEBGL_EXTENSIONS) {\n                if (gl && gl.getExtension(`${prefix}${extension}`)) {\n                    const gpuTextureFormat = WEBGL_EXTENSIONS[extension];\n                    formats.add(gpuTextureFormat);\n                }\n            }\n        }\n    }\n    return formats;\n}\n/**\n * @returns {WebGLRenderingContext?}\n */\nfunction getWebGLContext() {\n    try {\n        const canvas = document.createElement('canvas');\n        return canvas.getContext('webgl');\n    }\n    catch (error) {\n        return null;\n    }\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { read } from 'ktx-parse';\nimport { extractMipmapImages } from \"../utils/extract-mipmap-images.js\";\nimport { mapVkFormatToWebGL } from \"../utils/ktx-format-helper.js\";\nconst KTX2_ID = [\n    // '\u00B4', 'K', 'T', 'X', '2', '0', '\u00AA', '\\r', '\\n', '\\x1A', '\\n'\n    0xab, 0x4b, 0x54, 0x58, 0x20, 0x32, 0x30, 0xbb, 0x0d, 0x0a, 0x1a, 0x0a\n];\n// eslint-disable-next-line complexity\nexport function isKTX(data) {\n    // const id = new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    const id = new Uint8Array(data);\n    const notKTX = id.byteLength < KTX2_ID.length ||\n        id[0] !== KTX2_ID[0] || // '\u00B4'\n        id[1] !== KTX2_ID[1] || // 'K'\n        id[2] !== KTX2_ID[2] || // 'T'\n        id[3] !== KTX2_ID[3] || // 'X'\n        id[4] !== KTX2_ID[4] || // ' '\n        id[5] !== KTX2_ID[5] || // '2'\n        id[6] !== KTX2_ID[6] || // '0'\n        id[7] !== KTX2_ID[7] || // '\u00AA'\n        id[8] !== KTX2_ID[8] || // '\\r'\n        id[9] !== KTX2_ID[9] || // '\\n'\n        id[10] !== KTX2_ID[10] || // '\\x1A'\n        id[11] !== KTX2_ID[11]; // '\\n'\n    return !notKTX;\n}\nexport function parseKTX(arrayBuffer) {\n    const uint8Array = new Uint8Array(arrayBuffer);\n    const ktx = read(uint8Array);\n    const mipMapLevels = Math.max(1, ktx.levels.length);\n    const width = ktx.pixelWidth;\n    const height = ktx.pixelHeight;\n    const internalFormat = mapVkFormatToWebGL(ktx.vkFormat);\n    return extractMipmapImages(ktx.levels, {\n        mipMapLevels,\n        width,\n        height,\n        sizeFunction: (level) => level.uncompressedByteLength,\n        internalFormat\n    });\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n/**\n * Extract mipmap images from compressed texture buffer\n * @param data - binary data of compressed texture or Array of level objects\n * @param options.mipMapLevels - number of mipmap level inside image\n * @param options.width - width of 0 - level\n * @param options.height - height of 0 - level\n * @param options.sizeFunction - format-related function to calculate level size in bytes\n * @param options.internalFormat - WebGL compatible format code\n * @returns Array of the texture levels\n */\nexport function extractMipmapImages(data, options) {\n    const images = new Array(options.mipMapLevels);\n    let levelWidth = options.width;\n    let levelHeight = options.height;\n    let offset = 0;\n    for (let i = 0; i < options.mipMapLevels; ++i) {\n        // @ts-expect-error\n        const levelSize = getLevelSize(options, levelWidth, levelHeight, data, i);\n        // @ts-expect-error\n        const levelData = getLevelData(data, i, offset, levelSize);\n        images[i] = {\n            compressed: true,\n            format: options.internalFormat,\n            data: levelData,\n            width: levelWidth,\n            height: levelHeight,\n            levelSize\n        };\n        levelWidth = Math.max(1, levelWidth >> 1);\n        levelHeight = Math.max(1, levelHeight >> 1);\n        offset += levelSize;\n    }\n    return images;\n}\nfunction getLevelData(data, index, offset, levelSize) {\n    if (!Array.isArray(data)) {\n        return new Uint8Array(data.buffer, data.byteOffset + offset, levelSize);\n    }\n    return data[index].levelData;\n}\nfunction getLevelSize(options, levelWidth, levelHeight, data, index) {\n    if (!Array.isArray(data)) {\n        return options.sizeFunction(levelWidth, levelHeight);\n    }\n    return options.sizeFunction(data[index]);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { GL_EXTENSIONS_CONSTANTS } from \"../gl-extensions.js\";\nconst VULKAN_TO_WEBGL_FORMAT_MAP = {\n    131: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_S3TC_DXT1_EXT,\n    132: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_S3TC_DXT1_EXT,\n    133: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT1_EXT,\n    134: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT,\n    135: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT3_EXT,\n    136: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT,\n    137: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT5_EXT,\n    138: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT,\n    139: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RED_RGTC1_EXT,\n    140: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RED_RGTC1_EXT,\n    141: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RED_GREEN_RGTC2_EXT,\n    142: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT,\n    147: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_ETC2,\n    148: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ETC2,\n    149: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,\n    150: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,\n    151: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA8_ETC2_EAC,\n    152: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC,\n    153: GL_EXTENSIONS_CONSTANTS.COMPRESSED_R11_EAC,\n    154: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_R11_EAC,\n    155: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RG11_EAC,\n    156: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RG11_EAC,\n    // @ts-ignore\n    157: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4x4_KHR,\n    // @ts-ignore\n    158: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR,\n    // @ts-ignore\n    159: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x4_KHR,\n    // @ts-ignore\n    160: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5X4_KHR,\n    // @ts-ignore\n    161: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x5_KHR,\n    // @ts-ignore\n    162: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR,\n    // @ts-ignore\n    163: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x5_KHR,\n    // @ts-ignore\n    164: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR,\n    // @ts-ignore\n    165: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x6_KHR,\n    // @ts-ignore\n    166: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR,\n    // @ts-ignore\n    167: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x5_KHR,\n    // @ts-ignore\n    168: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR,\n    // @ts-ignore\n    169: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x6_KHR,\n    // @ts-ignore\n    170: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR,\n    // @ts-ignore\n    171: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x8_KHR,\n    // @ts-ignore\n    172: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR,\n    // @ts-ignore\n    173: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x5_KHR,\n    // @ts-ignore\n    174: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR,\n    // @ts-ignore\n    175: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x6_KHR,\n    // @ts-ignore\n    176: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR,\n    // @ts-ignore\n    177: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x8_KHR,\n    // @ts-ignore\n    178: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR,\n    // @ts-ignore\n    179: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x10_KHR,\n    // @ts-ignore\n    180: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR,\n    // @ts-ignore\n    181: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x10_KHR,\n    // @ts-ignore\n    182: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR,\n    // @ts-ignore\n    183: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x12_KHR,\n    // @ts-ignore\n    184: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR,\n    1000054000: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG,\n    1000054001: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG,\n    // @ts-ignore\n    1000066000: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4x4_KHR,\n    // @ts-ignore\n    1000066001: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x4_KHR,\n    // @ts-ignore\n    1000066002: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x5_KHR,\n    // @ts-ignore\n    1000066003: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x5_KHR,\n    // @ts-ignore\n    1000066004: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x6_KHR,\n    // @ts-ignore\n    1000066005: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x5_KHR,\n    // @ts-ignore\n    1000066006: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x6_KHR,\n    // @ts-ignore\n    1000066007: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x8_KHR,\n    // @ts-ignore\n    1000066008: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x5_KHR,\n    // @ts-ignore\n    1000066009: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x6_KHR,\n    // @ts-ignore\n    1000066010: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x8_KHR,\n    // @ts-ignore\n    1000066011: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x10_KHR,\n    // @ts-ignore\n    1000066012: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x10_KHR,\n    // @ts-ignore\n    1000066013: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x12_KHR\n};\n/**\n * Returns WebGl format based on Vulkan format\n * Vulkan to WebGl format mapping provided here http://github.khronos.org/KTX-Specification/#formatMapping\n * Vulkan name to format number mapping provided here: https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VkFormat.html\n * @param vkFormat\n * @returns WebGL / OpenGL constant\n */\nexport function mapVkFormatToWebGL(vkFormat) {\n    return VULKAN_TO_WEBGL_FORMAT_MAP[vkFormat];\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { loadBasisEncoderModule, loadBasisTranscoderModule } from \"./basis-module-loader.js\";\nimport { GL_EXTENSIONS_CONSTANTS } from \"../gl-extensions.js\";\nimport { getSupportedGPUTextureFormats } from \"../utils/texture-formats.js\";\nimport { isKTX } from \"./parse-ktx.js\";\nconst OutputFormat = {\n    etc1: {\n        basisFormat: 0,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_ETC1_WEBGL\n    },\n    etc2: { basisFormat: 1, compressed: true },\n    bc1: {\n        basisFormat: 2,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_S3TC_DXT1_EXT\n    },\n    bc3: {\n        basisFormat: 3,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT5_EXT\n    },\n    bc4: { basisFormat: 4, compressed: true },\n    bc5: { basisFormat: 5, compressed: true },\n    'bc7-m6-opaque-only': { basisFormat: 6, compressed: true },\n    'bc7-m5': { basisFormat: 7, compressed: true },\n    'pvrtc1-4-rgb': {\n        basisFormat: 8,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_PVRTC_4BPPV1_IMG\n    },\n    'pvrtc1-4-rgba': {\n        basisFormat: 9,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG\n    },\n    'astc-4x4': {\n        basisFormat: 10,\n        compressed: true,\n        format: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4X4_KHR\n    },\n    'atc-rgb': { basisFormat: 11, compressed: true },\n    'atc-rgba-interpolated-alpha': { basisFormat: 12, compressed: true },\n    rgba32: { basisFormat: 13, compressed: false },\n    rgb565: { basisFormat: 14, compressed: false },\n    bgr565: { basisFormat: 15, compressed: false },\n    rgba4444: { basisFormat: 16, compressed: false }\n};\n/**\n * parse data with a Binomial Basis_Universal module\n * @param data\n * @param options\n * @returns compressed texture data\n */\nexport async function parseBasis(data, options) {\n    if (options.basis.containerFormat === 'auto') {\n        if (isKTX(data)) {\n            const fileConstructors = await loadBasisEncoderModule(options);\n            return parseKTX2File(fileConstructors.KTX2File, data, options);\n        }\n        const { BasisFile } = await loadBasisTranscoderModule(options);\n        return parseBasisFile(BasisFile, data, options);\n    }\n    switch (options.basis.module) {\n        case 'encoder':\n            const fileConstructors = await loadBasisEncoderModule(options);\n            switch (options.basis.containerFormat) {\n                case 'ktx2':\n                    return parseKTX2File(fileConstructors.KTX2File, data, options);\n                case 'basis':\n                default:\n                    return parseBasisFile(fileConstructors.BasisFile, data, options);\n            }\n        case 'transcoder':\n        default:\n            const { BasisFile } = await loadBasisTranscoderModule(options);\n            return parseBasisFile(BasisFile, data, options);\n    }\n}\n/**\n * Parse *.basis file data\n * @param BasisFile - initialized transcoder module\n * @param data\n * @param options\n * @returns compressed texture data\n */\nfunction parseBasisFile(BasisFile, data, options) {\n    const basisFile = new BasisFile(new Uint8Array(data));\n    try {\n        if (!basisFile.startTranscoding()) {\n            throw new Error('Failed to start basis transcoding');\n        }\n        const imageCount = basisFile.getNumImages();\n        const images = [];\n        for (let imageIndex = 0; imageIndex < imageCount; imageIndex++) {\n            const levelsCount = basisFile.getNumLevels(imageIndex);\n            const levels = [];\n            for (let levelIndex = 0; levelIndex < levelsCount; levelIndex++) {\n                levels.push(transcodeImage(basisFile, imageIndex, levelIndex, options));\n            }\n            images.push(levels);\n        }\n        return images;\n    }\n    finally {\n        basisFile.close();\n        basisFile.delete();\n    }\n}\n/**\n * Parse the particular level image of a basis file\n * @param basisFile\n * @param imageIndex\n * @param levelIndex\n * @param options\n * @returns compressed texture data\n */\nfunction transcodeImage(basisFile, imageIndex, levelIndex, options) {\n    const width = basisFile.getImageWidth(imageIndex, levelIndex);\n    const height = basisFile.getImageHeight(imageIndex, levelIndex);\n    // See https://github.com/BinomialLLC/basis_universal/pull/83\n    const hasAlpha = basisFile.getHasAlpha( /* imageIndex, levelIndex */);\n    // Check options for output format etc\n    const { compressed, format, basisFormat } = getBasisOptions(options, hasAlpha);\n    const decodedSize = basisFile.getImageTranscodedSizeInBytes(imageIndex, levelIndex, basisFormat);\n    const decodedData = new Uint8Array(decodedSize);\n    if (!basisFile.transcodeImage(decodedData, imageIndex, levelIndex, basisFormat, 0, 0)) {\n        throw new Error('failed to start Basis transcoding');\n    }\n    return {\n        // standard loaders.gl image category payload\n        width,\n        height,\n        data: decodedData,\n        compressed,\n        format,\n        // Additional fields\n        // Add levelSize field.\n        hasAlpha\n    };\n}\n/**\n * Parse *.ktx2 file data\n * @param KTX2File\n * @param data\n * @param options\n * @returns compressed texture data\n */\nfunction parseKTX2File(KTX2File, data, options) {\n    const ktx2File = new KTX2File(new Uint8Array(data));\n    try {\n        if (!ktx2File.startTranscoding()) {\n            throw new Error('failed to start KTX2 transcoding');\n        }\n        const levelsCount = ktx2File.getLevels();\n        const levels = [];\n        for (let levelIndex = 0; levelIndex < levelsCount; levelIndex++) {\n            levels.push(transcodeKTX2Image(ktx2File, levelIndex, options));\n        }\n        return [levels];\n    }\n    finally {\n        ktx2File.close();\n        ktx2File.delete();\n    }\n}\n/**\n * Parse the particular level image of a ktx2 file\n * @param ktx2File\n * @param levelIndex\n * @param options\n * @returns\n */\nfunction transcodeKTX2Image(ktx2File, levelIndex, options) {\n    const { alphaFlag, height, width } = ktx2File.getImageLevelInfo(levelIndex, 0, 0);\n    // Check options for output format etc\n    const { compressed, format, basisFormat } = getBasisOptions(options, alphaFlag);\n    const decodedSize = ktx2File.getImageTranscodedSizeInBytes(levelIndex, 0 /* layerIndex */, 0 /* faceIndex */, basisFormat);\n    const decodedData = new Uint8Array(decodedSize);\n    if (!ktx2File.transcodeImage(decodedData, levelIndex, 0 /* layerIndex */, 0 /* faceIndex */, basisFormat, 0, -1 /* channel0 */, -1 /* channel1 */)) {\n        throw new Error('Failed to transcode KTX2 image');\n    }\n    return {\n        // standard loaders.gl image category payload\n        width,\n        height,\n        data: decodedData,\n        compressed,\n        // Additional fields\n        levelSize: decodedSize,\n        hasAlpha: alphaFlag,\n        format\n    };\n}\n/**\n * Get BasisFormat by loader format option\n * @param options\n * @param hasAlpha\n * @returns BasisFormat data\n */\nfunction getBasisOptions(options, hasAlpha) {\n    let format = options && options.basis && options.basis.format;\n    if (format === 'auto') {\n        format = selectSupportedBasisFormat();\n    }\n    if (typeof format === 'object') {\n        format = hasAlpha ? format.alpha : format.noAlpha;\n    }\n    format = format.toLowerCase();\n    return OutputFormat[format];\n}\n/**\n * Select transcode format from the list of supported formats\n * @returns key for OutputFormat map\n */\nexport function selectSupportedBasisFormat() {\n    const supportedFormats = getSupportedGPUTextureFormats();\n    if (supportedFormats.has('astc')) {\n        return 'astc-4x4';\n    }\n    else if (supportedFormats.has('dxt')) {\n        return {\n            alpha: 'bc3',\n            noAlpha: 'bc1'\n        };\n    }\n    else if (supportedFormats.has('pvrtc')) {\n        return {\n            alpha: 'pvrtc1-4-rgba',\n            noAlpha: 'pvrtc1-4-rgb'\n        };\n    }\n    else if (supportedFormats.has('etc1')) {\n        return 'etc1';\n    }\n    else if (supportedFormats.has('etc2')) {\n        return 'etc2';\n    }\n    return 'rgb565';\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nimport { parseBasis } from \"./lib/parsers/parse-basis.js\";\n/**\n * Worker loader for Basis super compressed textures\n */\nexport const BasisWorkerLoader = {\n    dataType: null,\n    batchType: null,\n    name: 'Basis',\n    id: 'basis',\n    module: 'textures',\n    version: VERSION,\n    worker: true,\n    extensions: ['basis', 'ktx2'],\n    mimeTypes: ['application/octet-stream', 'image/ktx2'],\n    tests: ['sB'],\n    binary: true,\n    options: {\n        basis: {\n            format: 'auto',\n            libraryPath: 'libs/',\n            containerFormat: 'auto',\n            module: 'transcoder'\n        }\n    }\n};\n/**\n * Loader for Basis super compressed textures\n */\nexport const BasisLoader = {\n    ...BasisWorkerLoader,\n    parse: parseBasis\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { assert } from '@loaders.gl/loader-utils';\nimport { GL_EXTENSIONS_CONSTANTS } from \"../gl-extensions.js\";\nimport { extractMipmapImages } from \"../utils/extract-mipmap-images.js\";\nconst DDS_CONSTANTS = {\n    MAGIC_NUMBER: 0x20534444,\n    HEADER_LENGTH: 31,\n    MAGIC_NUMBER_INDEX: 0,\n    HEADER_SIZE_INDEX: 1,\n    HEADER_FLAGS_INDEX: 2,\n    HEADER_HEIGHT_INDEX: 3,\n    HEADER_WIDTH_INDEX: 4,\n    MIPMAPCOUNT_INDEX: 7,\n    HEADER_PF_FLAGS_INDEX: 20,\n    HEADER_PF_FOURCC_INDEX: 21,\n    DDSD_MIPMAPCOUNT: 0x20000,\n    DDPF_FOURCC: 0x4\n};\nconst DDS_PIXEL_FORMATS = {\n    DXT1: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_S3TC_DXT1_EXT,\n    DXT3: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT3_EXT,\n    DXT5: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT5_EXT,\n    'ATC ': GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_ATC_WEBGL,\n    ATCA: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL,\n    ATCI: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL\n};\nconst getATCLevelSize = getDxt1LevelSize;\nconst getATCALevelSize = getDxtXLevelSize;\nconst getATCILevelSize = getDxtXLevelSize;\nconst DDS_SIZE_FUNCTIONS = {\n    DXT1: getDxt1LevelSize,\n    DXT3: getDxtXLevelSize,\n    DXT5: getDxtXLevelSize,\n    'ATC ': getATCLevelSize,\n    ATCA: getATCALevelSize,\n    ATCI: getATCILevelSize\n};\n/**\n * Check if data is in \"DDS\" format by its magic number\n * @param data - binary data of compressed texture\n * @returns true - data in \"DDS\" format, else - false\n */\nexport function isDDS(data) {\n    const header = new Uint32Array(data, 0, DDS_CONSTANTS.HEADER_LENGTH);\n    const magic = header[DDS_CONSTANTS.MAGIC_NUMBER_INDEX];\n    return magic === DDS_CONSTANTS.MAGIC_NUMBER;\n}\n/**\n * Parse texture data as \"DDS\" format\n * @param data - binary data of compressed texture\n * @returns Array of the texture levels\n */\nexport function parseDDS(data) {\n    const header = new Int32Array(data, 0, DDS_CONSTANTS.HEADER_LENGTH);\n    const pixelFormatNumber = header[DDS_CONSTANTS.HEADER_PF_FOURCC_INDEX];\n    assert(Boolean(header[DDS_CONSTANTS.HEADER_PF_FLAGS_INDEX] & DDS_CONSTANTS.DDPF_FOURCC), 'DDS: Unsupported format, must contain a FourCC code');\n    const fourCC = int32ToFourCC(pixelFormatNumber);\n    const internalFormat = DDS_PIXEL_FORMATS[fourCC];\n    const sizeFunction = DDS_SIZE_FUNCTIONS[fourCC];\n    assert(internalFormat && sizeFunction, `DDS: Unknown pixel format ${pixelFormatNumber}`);\n    let mipMapLevels = 1;\n    if (header[DDS_CONSTANTS.HEADER_FLAGS_INDEX] & DDS_CONSTANTS.DDSD_MIPMAPCOUNT) {\n        mipMapLevels = Math.max(1, header[DDS_CONSTANTS.MIPMAPCOUNT_INDEX]);\n    }\n    const width = header[DDS_CONSTANTS.HEADER_WIDTH_INDEX];\n    const height = header[DDS_CONSTANTS.HEADER_HEIGHT_INDEX];\n    const dataOffset = header[DDS_CONSTANTS.HEADER_SIZE_INDEX] + 4;\n    const image = new Uint8Array(data, dataOffset);\n    return extractMipmapImages(image, {\n        mipMapLevels,\n        width,\n        height,\n        sizeFunction,\n        internalFormat\n    });\n}\n/**\n * DXT1 applicable function to calculate level size\n * @param width - level width\n * @param height - level height\n * @returns level size in bytes\n */\nexport function getDxt1LevelSize(width, height) {\n    return ((width + 3) >> 2) * ((height + 3) >> 2) * 8;\n}\n/**\n * DXT3 & DXT5 applicable function to calculate level size\n * @param width - level width\n * @param height - level height\n * @returns level size in bytes\n */\nexport function getDxtXLevelSize(width, height) {\n    return ((width + 3) >> 2) * ((height + 3) >> 2) * 16;\n}\n/**\n * Convert every byte of Int32 value to char\n * @param value - Int32 number\n * @returns string of 4 characters\n */\nfunction int32ToFourCC(value) {\n    return String.fromCharCode(value & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, (value >> 24) & 0xff);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { GL_EXTENSIONS_CONSTANTS } from \"../gl-extensions.js\";\nimport { extractMipmapImages } from \"../utils/extract-mipmap-images.js\";\nconst PVR_CONSTANTS = {\n    MAGIC_NUMBER: 0x03525650,\n    MAGIC_NUMBER_EXTRA: 0x50565203,\n    HEADER_LENGTH: 13,\n    HEADER_SIZE: 52,\n    MAGIC_NUMBER_INDEX: 0,\n    PIXEL_FORMAT_INDEX: 2,\n    COLOUR_SPACE_INDEX: 4,\n    HEIGHT_INDEX: 6,\n    WIDTH_INDEX: 7,\n    MIPMAPCOUNT_INDEX: 11,\n    METADATA_SIZE_INDEX: 12\n};\nconst PVR_PIXEL_FORMATS = {\n    0: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_PVRTC_2BPPV1_IMG],\n    1: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG],\n    2: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_PVRTC_4BPPV1_IMG],\n    3: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG],\n    6: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_ETC1_WEBGL],\n    7: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_S3TC_DXT1_EXT],\n    9: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT3_EXT],\n    11: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT5_EXT],\n    22: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_ETC2],\n    23: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA8_ETC2_EAC],\n    24: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2],\n    25: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_R11_EAC],\n    26: [GL_EXTENSIONS_CONSTANTS.COMPRESSED_RG11_EAC],\n    27: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4X4_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_4X4_KHR\n    ],\n    28: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5X4_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5X4_KHR\n    ],\n    29: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5X5_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5X5_KHR\n    ],\n    30: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6X5_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6X5_KHR\n    ],\n    31: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6X6_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6X6_KHR\n    ],\n    32: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8X5_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8X5_KHR\n    ],\n    33: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8X6_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8X6_KHR\n    ],\n    34: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8X8_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8X8_KHR\n    ],\n    35: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10X5_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10X5_KHR\n    ],\n    36: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10X6_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10X6_KHR\n    ],\n    37: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10X8_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10X8_KHR\n    ],\n    38: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10X10_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10X10_KHR\n    ],\n    39: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12X10_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12X10_KHR\n    ],\n    40: [\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12X12_KHR,\n        GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12X12_KHR\n    ]\n};\nconst PVR_SIZE_FUNCTIONS = {\n    0: pvrtc2bppSize,\n    1: pvrtc2bppSize,\n    2: pvrtc4bppSize,\n    3: pvrtc4bppSize,\n    6: dxtEtcSmallSize,\n    7: dxtEtcSmallSize,\n    9: dxtEtcAstcBigSize,\n    11: dxtEtcAstcBigSize,\n    22: dxtEtcSmallSize,\n    23: dxtEtcAstcBigSize,\n    24: dxtEtcSmallSize,\n    25: dxtEtcSmallSize,\n    26: dxtEtcAstcBigSize,\n    27: dxtEtcAstcBigSize,\n    28: atc5x4Size,\n    29: atc5x5Size,\n    30: atc6x5Size,\n    31: atc6x6Size,\n    32: atc8x5Size,\n    33: atc8x6Size,\n    34: atc8x8Size,\n    35: atc10x5Size,\n    36: atc10x6Size,\n    37: atc10x8Size,\n    38: atc10x10Size,\n    39: atc12x10Size,\n    40: atc12x12Size\n};\n/**\n * Check if data is in \"PVR\" format by its magic number\n * @param data - binary data of compressed texture\n * @returns true - data in \"PVR\" format, else - false\n */\nexport function isPVR(data) {\n    const header = new Uint32Array(data, 0, PVR_CONSTANTS.HEADER_LENGTH);\n    const version = header[PVR_CONSTANTS.MAGIC_NUMBER_INDEX];\n    return version === PVR_CONSTANTS.MAGIC_NUMBER || version === PVR_CONSTANTS.MAGIC_NUMBER_EXTRA;\n}\n/**\n * Parse texture data as \"PVR\" format\n * @param data - binary data of compressed texture\n * @returns Array of the texture levels\n * @see http://cdn.imgtec.com/sdk-documentation/PVR+File+Format.Specification.pdf\n */\nexport function parsePVR(data) {\n    const header = new Uint32Array(data, 0, PVR_CONSTANTS.HEADER_LENGTH);\n    const pvrFormat = header[PVR_CONSTANTS.PIXEL_FORMAT_INDEX];\n    const colourSpace = header[PVR_CONSTANTS.COLOUR_SPACE_INDEX];\n    const pixelFormats = PVR_PIXEL_FORMATS[pvrFormat] || [];\n    const internalFormat = pixelFormats.length > 1 && colourSpace ? pixelFormats[1] : pixelFormats[0];\n    const sizeFunction = PVR_SIZE_FUNCTIONS[pvrFormat];\n    const mipMapLevels = header[PVR_CONSTANTS.MIPMAPCOUNT_INDEX];\n    const width = header[PVR_CONSTANTS.WIDTH_INDEX];\n    const height = header[PVR_CONSTANTS.HEIGHT_INDEX];\n    const dataOffset = PVR_CONSTANTS.HEADER_SIZE + header[PVR_CONSTANTS.METADATA_SIZE_INDEX];\n    const image = new Uint8Array(data, dataOffset);\n    return extractMipmapImages(image, {\n        mipMapLevels,\n        width,\n        height,\n        sizeFunction,\n        internalFormat\n    });\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_pvrtc/\nfunction pvrtc2bppSize(width, height) {\n    width = Math.max(width, 16);\n    height = Math.max(height, 8);\n    return (width * height) / 4;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_pvrtc/\nfunction pvrtc4bppSize(width, height) {\n    width = Math.max(width, 8);\n    height = Math.max(height, 8);\n    return (width * height) / 2;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_s3tc/\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_etc/\n// Size for:\n// COMPRESSED_RGB_S3TC_DXT1_EXT\n// COMPRESSED_R11_EAC\n// COMPRESSED_SIGNED_R11_EAC\n// COMPRESSED_RGB8_ETC2\n// COMPRESSED_SRGB8_ETC2\n// COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2\n// COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2\nfunction dxtEtcSmallSize(width, height) {\n    return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 8;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_s3tc/\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_etc/\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\n// Size for:\n// COMPRESSED_RGBA_S3TC_DXT3_EXT\n// COMPRESSED_RGBA_S3TC_DXT5_EXT\n// COMPRESSED_RG11_EAC\n// COMPRESSED_SIGNED_RG11_EAC\n// COMPRESSED_RGBA8_ETC2_EAC\n// COMPRESSED_SRGB8_ALPHA8_ETC2_EAC\n// COMPRESSED_RGBA_ASTC_4x4_KHR\nfunction dxtEtcAstcBigSize(width, height) {\n    return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc5x4Size(width, height) {\n    return Math.floor((width + 4) / 5) * Math.floor((height + 3) / 4) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc5x5Size(width, height) {\n    return Math.floor((width + 4) / 5) * Math.floor((height + 4) / 5) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc6x5Size(width, height) {\n    return Math.floor((width + 5) / 6) * Math.floor((height + 4) / 5) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc6x6Size(width, height) {\n    return Math.floor((width + 5) / 6) * Math.floor((height + 5) / 6) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc8x5Size(width, height) {\n    return Math.floor((width + 7) / 8) * Math.floor((height + 4) / 5) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc8x6Size(width, height) {\n    return Math.floor((width + 7) / 8) * Math.floor((height + 5) / 6) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc8x8Size(width, height) {\n    return Math.floor((width + 7) / 8) * Math.floor((height + 7) / 8) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc10x5Size(width, height) {\n    return Math.floor((width + 9) / 10) * Math.floor((height + 4) / 5) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc10x6Size(width, height) {\n    return Math.floor((width + 9) / 10) * Math.floor((height + 5) / 6) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc10x8Size(width, height) {\n    return Math.floor((width + 9) / 10) * Math.floor((height + 7) / 8) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc10x10Size(width, height) {\n    return Math.floor((width + 9) / 10) * Math.floor((height + 9) / 10) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc12x10Size(width, height) {\n    return Math.floor((width + 11) / 12) * Math.floor((height + 9) / 10) * 16;\n}\n// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/\nfunction atc12x12Size(width, height) {\n    return Math.floor((width + 11) / 12) * Math.floor((height + 11) / 12) * 16;\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { isKTX, parseKTX } from \"./parse-ktx.js\";\nimport { isDDS, parseDDS } from \"./parse-dds.js\";\nimport { isPVR, parsePVR } from \"./parse-pvr.js\";\n/**\n * Deduces format and parses compressed texture loaded in ArrayBuffer\n * @param data - binary data of compressed texture\n * @returns Array of the texture levels\n */\nexport function parseCompressedTexture(data) {\n    if (isKTX(data)) {\n        // TODO: remove @ts-ignore when `parseKTX` output is normalized to loaders.gl texture format\n        // @ts-ignore\n        return parseKTX(data);\n    }\n    if (isDDS(data)) {\n        return parseDDS(data);\n    }\n    if (isPVR(data)) {\n        return parsePVR(data);\n    }\n    throw new Error('Texture container format not recognized');\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nimport { parseCompressedTexture } from \"./lib/parsers/parse-compressed-texture.js\";\nimport { parseBasis } from \"./lib/parsers/parse-basis.js\";\n/**\n * Worker Loader for KTX, DDS, and PVR texture container formats\n */\nexport const CompressedTextureWorkerLoader = {\n    dataType: null,\n    batchType: null,\n    name: 'Texture Containers',\n    id: 'compressed-texture',\n    module: 'textures',\n    version: VERSION,\n    worker: true,\n    extensions: [\n        'ktx',\n        'ktx2',\n        'dds', // WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_atc\n        'pvr' // WEBGL_compressed_texture_pvrtc\n    ],\n    mimeTypes: [\n        'image/ktx2',\n        'image/ktx',\n        'image/vnd-ms.dds',\n        'image/x-dds',\n        'application/octet-stream'\n    ],\n    binary: true,\n    options: {\n        'compressed-texture': {\n            libraryPath: 'libs/',\n            useBasis: false\n        }\n    }\n};\n/**\n * Loader for KTX, DDS, and PVR texture container formats\n */\nexport const CompressedTextureLoader = {\n    ...CompressedTextureWorkerLoader,\n    parse: async (arrayBuffer, options) => {\n        if (options?.['compressed-texture']?.useBasis) {\n            // @ts-expect-error TODO not allowed to modify inputs\n            options.basis = {\n                format: {\n                    alpha: 'BC3',\n                    noAlpha: 'BC1'\n                },\n                // @ts-expect-error TODO not allowed to modify inputs\n                ...options.basis,\n                containerFormat: 'ktx2',\n                module: 'encoder'\n            };\n            const result = await parseBasis(arrayBuffer, options);\n            return result[0];\n        }\n        return parseCompressedTexture(arrayBuffer);\n    }\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\n/**\n * Worker loader for the Crunch compressed texture container format\n * @note We avoid bundling crunch - it is a rare format and large lib, so we only offer worker loader\n */\nexport const CrunchLoader = {\n    dataType: null,\n    batchType: null,\n    id: 'crunch',\n    name: 'Crunch',\n    module: 'textures',\n    version: VERSION,\n    worker: true,\n    extensions: ['crn'],\n    mimeTypes: ['image/crn', 'image/x-crn', 'application/octet-stream'],\n    binary: true,\n    options: {\n        crunch: {\n            libraryPath: 'libs/'\n        }\n    }\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nconst a = new Uint32Array([0x12345678]);\nconst b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);\nconst isLittleEndian = !(b[0] === 0x12);\nconst LITTLE_ENDIAN_OS = isLittleEndian;\n/**\n * The basic string format consists of 3 characters:\n * 1. a character describing the byteorder of the data (<: little-endian, >: big-endian, |: not-relevant)\n * 2. a character code giving the basic type of the array\n * 3. an integer providing the number of bytes the type uses.\n * https://numpy.org/doc/stable/reference/arrays.interface.html\n *\n * Here I only include the second and third characters, and check endianness separately\n */\nconst DTYPES = {\n    u1: Uint8Array,\n    i1: Int8Array,\n    u2: Uint16Array,\n    i2: Int16Array,\n    u4: Uint32Array,\n    i4: Int32Array,\n    f4: Float32Array,\n    f8: Float64Array\n};\nexport function parseNPY(arrayBuffer, options) {\n    const view = new DataView(arrayBuffer);\n    const { header, headerEndOffset } = parseHeader(view);\n    const numpyType = header.descr;\n    const ArrayType = DTYPES[numpyType.slice(1, 3)];\n    if (!ArrayType) {\n        throw new Error(`Unimplemented type ${numpyType}`);\n    }\n    const nArrayElements = header.shape?.reduce((a, b) => a * b);\n    const arrayByteLength = nArrayElements * ArrayType.BYTES_PER_ELEMENT;\n    if (arrayBuffer.byteLength < headerEndOffset + arrayByteLength) {\n        throw new Error('Buffer overflow');\n    }\n    const data = new ArrayType(arrayBuffer.slice(headerEndOffset, headerEndOffset + arrayByteLength));\n    // Swap endianness if needed\n    if ((numpyType[0] === '>' && LITTLE_ENDIAN_OS) || (numpyType[0] === '<' && !LITTLE_ENDIAN_OS)) {\n        throw new Error('Incorrect endianness');\n    }\n    return {\n        data,\n        header\n    };\n}\n/**\n * Parse NPY header\n *\n * @param  view\n * @return\n */\nfunction parseHeader(view) {\n    const majorVersion = view.getUint8(6);\n    // const minorVersion = view.getUint8(7);\n    let offset = 8;\n    let headerLength;\n    if (majorVersion >= 2) {\n        headerLength = view.getUint32(offset, true);\n        offset += 4;\n    }\n    else {\n        headerLength = view.getUint16(offset, true);\n        offset += 2;\n    }\n    const encoding = majorVersion <= 2 ? 'latin1' : 'utf-8';\n    const decoder = new TextDecoder(encoding);\n    const headerArray = new Uint8Array(view.buffer, offset, headerLength);\n    const headerText = decoder.decode(headerArray);\n    offset += headerLength;\n    const header = JSON.parse(headerText\n        .replace(/'/g, '\"')\n        .replace('False', 'false')\n        .replace('(', '[')\n        .replace(/,*\\),*/g, ']'));\n    return { header, headerEndOffset: offset };\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nimport { parseNPY } from \"./lib/parsers/parse-npy.js\";\n// \\x93NUMPY\nconst NPY_MAGIC_NUMBER = new Uint8Array([147, 78, 85, 77, 80, 89]);\n/**\n * Worker loader for numpy \"tiles\"\n */\nexport const NPYWorkerLoader = {\n    dataType: null,\n    batchType: null,\n    name: 'NPY',\n    id: 'npy',\n    module: 'textures',\n    version: VERSION,\n    worker: true,\n    extensions: ['npy'],\n    mimeTypes: [],\n    tests: [NPY_MAGIC_NUMBER.buffer],\n    options: {\n        npy: {}\n    }\n};\n/**\n * Loader for numpy \"tiles\"\n */\nexport const NPYLoader = {\n    ...NPYWorkerLoader,\n    parseSync: parseNPY,\n    parse: async (arrayBuffer, options) => parseNPY(arrayBuffer, options)\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n// @ts-nocheck\nimport { getJSModuleOrNull, registerJSModules } from '@loaders.gl/loader-utils';\nimport { loadLibrary } from '@loaders.gl/worker-utils';\nexport const CRUNCH_EXTERNAL_LIBRARIES = {\n    /** Crunch decoder library. It is used as dynamically imported script */\n    DECODER: 'crunch.js'\n};\n/**\n * Load crunch decoder module\n * @param options - loader options\n * @returns Promise of module object\n */\nexport async function loadCrunchModule(options) {\n    registerJSModules(options.modules);\n    const crunch = getJSModuleOrNull('crunch');\n    if (crunch) {\n        return crunch;\n    }\n    return loadCrunch(options);\n}\nlet crunchModule;\n/**\n * Load crunch decoder module\n * @param {any} options - Loader options\n * @returns {Promise<any>} Promise of Module object\n */\nasync function loadCrunch(options) {\n    if (crunchModule) {\n        return crunchModule;\n    }\n    let loadCrunchDecoder = await loadLibrary(CRUNCH_EXTERNAL_LIBRARIES.DECODER, 'textures', options);\n    // Depends on how import happened...\n    // @ts-ignore TS2339: Property does not exist on type\n    loadCrunchDecoder ||= globalThis.LoadCrunchDecoder;\n    crunchModule = loadCrunchDecoder();\n    return crunchModule;\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { ChildProcessProxy } from '@loaders.gl/worker-utils';\n/*\n * @see https://github.com/TimvanScherpenzeel/texture-compressor\n */\nexport async function encodeImageURLToCompressedTextureURL(inputUrl, outputUrl, options) {\n    // prettier-ignore\n    const args = [\n        // Note: our actual executable is `npx`, so `texture-compressor` is an argument\n        'texture-compressor',\n        '--type', 's3tc',\n        '--compression', 'DXT1',\n        '--quality', 'normal',\n        '--input', inputUrl,\n        '--output', outputUrl\n    ];\n    const childProcess = new ChildProcessProxy();\n    await childProcess.start({\n        command: 'npx',\n        arguments: args,\n        spawn: options\n    });\n    return outputUrl;\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nimport { encodeImageURLToCompressedTextureURL } from \"./lib/encoders/encode-texture.js\";\n/**\n * DDS Texture Container Exporter\n */\nexport const CompressedTextureWriter = {\n    name: 'DDS Texture Container',\n    id: 'dds',\n    module: 'textures',\n    version: VERSION,\n    extensions: ['dds'],\n    options: {\n        texture: {\n            format: 'auto',\n            compression: 'auto',\n            quality: 'auto',\n            mipmap: false,\n            flipY: false,\n            toolFlags: ''\n        }\n    },\n    encodeURLtoURL: encodeImageURLToCompressedTextureURL,\n    encode() {\n        throw new Error('Not implemented');\n    }\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { loadBasisEncoderModule } from \"../parsers/basis-module-loader.js\";\n/**\n * Encodes image to Basis Universal Supercompressed GPU Texture.\n * Code example is taken from here - https://github.com/BinomialLLC/basis_universal/blob/master/webgl/ktx2_encode_test/index.html#L279\n * BasisEncoder API - https://github.com/BinomialLLC/basis_universal/blob/master/webgl/transcoder/basis_wrappers.cpp#L1712\n * @param image\n * @param options\n */\nexport async function encodeKTX2BasisTexture(image, options = {}) {\n    // TODO remove default values after writer options will be normalized like it done in load module.\n    const { useSRGB = false, qualityLevel = 10, encodeUASTC = false, mipmaps = false } = options?.['ktx2-basis-writer'] || {};\n    const { BasisEncoder } = await loadBasisEncoderModule(options);\n    const basisEncoder = new BasisEncoder();\n    try {\n        const basisFileData = new Uint8Array(image.width * image.height * 4);\n        basisEncoder.setCreateKTX2File(true);\n        basisEncoder.setKTX2UASTCSupercompression(true);\n        basisEncoder.setKTX2SRGBTransferFunc(true);\n        basisEncoder.setSliceSourceImage(0, image.data, image.width, image.height, false);\n        basisEncoder.setPerceptual(useSRGB);\n        basisEncoder.setMipSRGB(useSRGB);\n        basisEncoder.setQualityLevel(qualityLevel);\n        basisEncoder.setUASTC(encodeUASTC);\n        basisEncoder.setMipGen(mipmaps);\n        const numOutputBytes = basisEncoder.encode(basisFileData);\n        const actualKTX2FileData = basisFileData.subarray(0, numOutputBytes).buffer;\n        return actualKTX2FileData;\n    }\n    catch (error) {\n        // eslint-disable-next-line no-console\n        console.error('Basis Universal Supercompressed GPU Texture encoder Error: ', error);\n        throw error;\n    }\n    finally {\n        basisEncoder.delete();\n    }\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { VERSION } from \"./lib/utils/version.js\";\nimport { encodeKTX2BasisTexture } from \"./lib/encoders/encode-ktx2-basis-texture.js\";\n/**\n *  Basis Universal Supercompressed GPU Texture.\n *  Spec - https://github.com/Esri/i3s-spec/blob/master/docs/1.8/textureSetDefinitionFormat.cmn.md\n */\nexport const KTX2BasisWriter = {\n    name: 'Basis Universal Supercompressed GPU Texture',\n    id: 'ktx2-basis-writer',\n    module: 'textures',\n    version: VERSION,\n    extensions: ['ktx2'],\n    options: {\n        ['ktx2-basis-writer']: {\n            useSRGB: false,\n            qualityLevel: 10,\n            encodeUASTC: false,\n            mipmaps: false\n        }\n    },\n    encode: encodeKTX2BasisTexture\n};\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { assert } from '@loaders.gl/loader-utils';\nimport { ImageLoader, getImageSize } from '@loaders.gl/images';\nimport { generateUrl } from \"./generate-url.js\";\nimport { deepLoad, shallowLoad } from \"./deep-load.js\";\nexport async function loadImageTexture(getUrl, options = {}) {\n    const imageUrls = await getImageUrls(getUrl, options);\n    return await deepLoad(imageUrls, ImageLoader.parse, options);\n}\nexport async function getImageUrls(getUrl, options, urlOptions = {}) {\n    const mipLevels = (options && options.image && options.image.mipLevels) || 0;\n    return mipLevels !== 0\n        ? await getMipmappedImageUrls(getUrl, mipLevels, options, urlOptions)\n        : generateUrl(getUrl, options, urlOptions);\n}\nasync function getMipmappedImageUrls(getUrl, mipLevels, options, urlOptions) {\n    const urls = [];\n    // If no mip levels supplied, we need to load the level 0 image and calculate based on size\n    if (mipLevels === 'auto') {\n        const url = generateUrl(getUrl, options, { ...urlOptions, lod: 0 });\n        const image = await shallowLoad(url, ImageLoader.parse, options);\n        const { width, height } = getImageSize(image);\n        mipLevels = getMipLevels({ width, height });\n        // TODO - push image and make `deepLoad` pass through non-url values, avoid loading twice?\n        urls.push(url);\n    }\n    // We now know how many mipLevels we need, remaining image urls can now be constructed\n    assert(mipLevels > 0);\n    for (let mipLevel = urls.length; mipLevel < mipLevels; ++mipLevel) {\n        const url = generateUrl(getUrl, options, { ...urlOptions, lod: mipLevel });\n        urls.push(url);\n    }\n    return urls;\n}\n// Calculates number of mipmaps based on texture size (log2)\nexport function getMipLevels(size) {\n    return 1 + Math.floor(Math.log2(Math.max(size.width, size.height)));\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { resolvePath } from '@loaders.gl/loader-utils';\n// Generate a url by calling getUrl with mix of options, applying options.baseUrl\nexport function generateUrl(getUrl, options, urlOptions) {\n    // Get url\n    let url = typeof getUrl === 'function' ? getUrl({ ...options, ...urlOptions }) : getUrl;\n    // Apply options.baseUrl\n    const baseUrl = options.baseUrl;\n    if (baseUrl) {\n        url = baseUrl[baseUrl.length - 1] === '/' ? `${baseUrl}${url}` : `${baseUrl}/${url}`;\n    }\n    return resolvePath(url);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nconst isObject = (value) => value && typeof value === 'object';\n// Loads a deep structure of urls (objects and arrays of urls)\n// Returns an object with six key-value pairs containing the images (or image mip arrays)\n// for each cube face\nexport async function asyncDeepMap(tree, func, options = {}) {\n    return await mapSubtree(tree, func, options);\n}\nexport async function mapSubtree(object, func, options) {\n    if (Array.isArray(object)) {\n        return await mapArray(object, func, options);\n    }\n    if (isObject(object)) {\n        return await mapObject(object, func, options);\n    }\n    // TODO - ignore non-urls, non-arraybuffers?\n    const url = object;\n    return await func(url, options);\n}\n// HELPERS\nasync function mapObject(object, func, options) {\n    const promises = [];\n    const values = {};\n    for (const key in object) {\n        const url = object[key];\n        const promise = mapSubtree(url, func, options).then((value) => {\n            values[key] = value;\n        });\n        promises.push(promise);\n    }\n    await Promise.all(promises);\n    return values;\n}\nasync function mapArray(urlArray, func, options = {}) {\n    const promises = urlArray.map((url) => mapSubtree(url, func, options));\n    return await Promise.all(promises);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { asyncDeepMap } from \"./async-deep-map.js\";\nexport async function deepLoad(urlTree, load, options) {\n    return await asyncDeepMap(urlTree, (url) => shallowLoad(url, load, options));\n}\nexport async function shallowLoad(url, load, options) {\n    const response = await fetch(url, options.fetch);\n    const arrayBuffer = await response.arrayBuffer();\n    return await load(arrayBuffer, options);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { ImageLoader } from '@loaders.gl/images';\nimport { getImageUrls } from \"./load-image.js\";\nimport { deepLoad } from \"./deep-load.js\";\nexport async function loadImageTextureArray(count, getUrl, options = {}) {\n    const imageUrls = await getImageArrayUrls(count, getUrl, options);\n    return await deepLoad(imageUrls, ImageLoader.parse, options);\n}\nexport async function getImageArrayUrls(count, getUrl, options = {}) {\n    const promises = [];\n    for (let index = 0; index < count; index++) {\n        const promise = getImageUrls(getUrl, options, { index });\n        promises.push(promise);\n    }\n    return await Promise.all(promises);\n}\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\nimport { ImageLoader } from '@loaders.gl/images';\nimport { getImageUrls } from \"./load-image.js\";\nimport { deepLoad } from \"./deep-load.js\";\n// Returned map will be have keys corresponding to GL cubemap constants\nconst GL_TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515;\nconst GL_TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516;\nconst GL_TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517;\nconst GL_TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518;\nconst GL_TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519;\nconst GL_TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851a;\nconst CUBE_FACES = [\n    { face: GL_TEXTURE_CUBE_MAP_POSITIVE_X, direction: 'right', axis: 'x', sign: 'positive' },\n    { face: GL_TEXTURE_CUBE_MAP_NEGATIVE_X, direction: 'left', axis: 'x', sign: 'negative' },\n    { face: GL_TEXTURE_CUBE_MAP_POSITIVE_Y, direction: 'top', axis: 'y', sign: 'positive' },\n    { face: GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, direction: 'bottom', axis: 'y', sign: 'negative' },\n    { face: GL_TEXTURE_CUBE_MAP_POSITIVE_Z, direction: 'front', axis: 'z', sign: 'positive' },\n    { face: GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, direction: 'back', axis: 'z', sign: 'negative' }\n];\n// Returns an object with six key-value pairs containing the urls (or url mip arrays)\n// for each cube face\nexport async function getImageCubeUrls(getUrl, options) {\n    // Calculate URLs\n    const urls = {};\n    const promises = [];\n    let index = 0;\n    for (let i = 0; i < CUBE_FACES.length; ++i) {\n        const face = CUBE_FACES[index];\n        const promise = getImageUrls(getUrl, options, { ...face, index: index++ }).then((url) => {\n            urls[face.face] = url;\n        });\n        promises.push(promise);\n    }\n    await Promise.all(promises);\n    return urls;\n}\n// Returns an object with six key-value pairs containing the images (or image mip arrays)\n// for each cube face\nexport async function loadImageTextureCube(getUrl, options = {}) {\n    const urls = await getImageCubeUrls(getUrl, options);\n    return (await deepLoad(urls, ImageLoader.parse, options));\n}\n"],
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  "names": ["module", "import_loader_utils", "a", "b", "import_loader_utils", "import_worker_utils", "import_worker_utils", "import_loader_utils", "import_loader_utils", "import_images", "import_images"]
}