@loaders.gl/textures/dist/lib/parsers/parse-basis.d.ts

Framework-independent loaders for compressed and super compressed (basis) textures

import type { TextureFormat, TextureLevel } from '@loaders.gl/schema';
import type { GLTextureFormat } from "../gl-types.js";
import type { BasisLoaderOptions } from "../../basis-loader.js";
export type BasisFormat = 'etc1' | 'etc2' | 'bc1' | 'bc3' | 'bc4' | 'bc5' | 'bc7-m6-opaque-only' | 'bc7-m5' | 'pvrtc1-4-rgb' | 'pvrtc1-4-rgba' | 'astc-4x4' | 'atc-rgb' | 'atc-rgba-interpolated-alpha' | 'rgba32' | 'rgb565' | 'bgr565' | 'rgba4444';
type BasisOutputOptions = {
    basisFormat: number;
    compressed: boolean;
    format?: GLTextureFormat;
    textureFormat?: TextureFormat;
};
export declare const BASIS_FORMAT_TO_OUTPUT_OPTIONS: Record<BasisFormat, BasisOutputOptions>;
export declare const BASIS_FORMATS: readonly BasisFormat[];
export type ParseBasisOptions = {
    format: 'auto' | BasisFormat | {
        alpha: BasisFormat;
        noAlpha: BasisFormat;
    };
    containerFormat: 'auto' | 'ktx2' | 'basis';
    module: 'transcoder' | 'encoder';
    supportedTextureFormats?: TextureFormat[];
};
/**
 * Serializes access to the Basis transcoder so concurrent callers do not enter the non-reentrant
 * decoder path at the same time.
 * @param transcode - Transcode operation to run with exclusive access.
 * @returns The transcode result.
 */
export declare function withBasisTranscodingLock<T>(transcode: () => Promise<T> | T): Promise<T>;
/**
 * parse data with a Binomial Basis_Universal module
 * @param data
 * @param options
 * @returns compressed texture data
 */
export declare function parseBasis(data: ArrayBuffer, options?: BasisLoaderOptions): Promise<TextureLevel[][]>;
/**
 * Select transcode format from the list of supported formats
 * @returns key for OutputFormat map
 */
export declare function selectSupportedBasisFormat(): BasisFormat | {
    alpha: BasisFormat;
    noAlpha: BasisFormat;
};
export declare function selectSupportedBasisFormat(supportedTextureFormats?: Iterable<TextureFormat>): BasisFormat | {
    alpha: BasisFormat;
    noAlpha: BasisFormat;
};
export declare function getSupportedBasisFormats(supportedTextureFormats?: Iterable<TextureFormat>): BasisFormat[];
export {};
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