@loaders.gl/lerc/dist/index.cjs.map

Framework-independent loader for LERC (Limited Error Raster Compression) files

{
  "version": 3,
  "sources": ["../src/index.ts", "../src/lerc-loader.ts"],
  "sourcesContent": ["// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n\n// LERC - Limited Error Raster Compression\nexport const LERC_ERROR = 'lerc module is not esbuild compatible';\nexport type {LERCData} from './lib/parsers/lerc/lerc-types';\nexport {LERCLoader} from './lerc-loader';\n", "// loaders.gl\n// SPDX-License-Identifier: MIT\n// Copyright (c) vis.gl contributors\n\nimport type {LoaderWithParser, LoaderOptions} from '@loaders.gl/loader-utils';\nimport type {LERCData} from './lib/parsers/lerc/lerc-types';\nimport * as Lerc from 'lerc';\n\n// __VERSION__ is injected by babel-plugin-version-inline\n// @ts-ignore TS2304: Cannot find name '__VERSION__'.\nconst VERSION = typeof __VERSION__ !== 'undefined' ? __VERSION__ : 'latest';\n\n/** LERC loader options */\nexport type LERCLoaderOptions = LoaderOptions & {\n  /** LERC loader options */\n  lerc?: {\n    /**\tThe number of bytes to skip in the input byte stream. A valid Lerc file is expected at that position. */\n    inputOffset?: number;\n    /**\tIt is recommended to use the returned mask instead of setting this value. */\n    noDataValue?: number;\n    /**\t(ndepth LERC2 only) If true, returned depth values are pixel-interleaved. */\n    returnInterleaved?: boolean;\n  };\n};\n\n/**\n * Loader for the LERC raster format\n */\nexport const LERCLoader = {\n  dataType: null as unknown as LERCData,\n  batchType: null as never,\n\n  id: 'lerc',\n  name: 'LERC',\n\n  module: 'lerc',\n  version: VERSION,\n  worker: false,\n  extensions: ['lrc', 'lerc', 'lerc2', 'lerc1'],\n  mimeTypes: ['application/octet-stream'],\n  // test: ?,\n  options: {\n    lerc: {}\n  },\n  parse: async (arrayBuffer: ArrayBuffer, options?: LERCLoaderOptions) =>\n    parseLERC(arrayBuffer, options)\n} as const satisfies LoaderWithParser<LERCData, never, LERCLoaderOptions>;\n\nasync function parseLERC(arrayBuffer: ArrayBuffer, options?: LERCLoaderOptions): Promise<LERCData> {\n  // Load the WASM library\n  await Lerc.load();\n  // Perform the decode\n  const pixelBlock = Lerc.decode(arrayBuffer, options?.lerc);\n  return pixelBlock;\n}\n"],
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  "names": []
}