import { Disposable } from "../../../../base/common/lifecycle.js";
import { ILogService } from "../../../../platform/log/common/log.service.js";
import { IThemeService } from "../../../../platform/theme/common/themeService.service.js";
import type { IBoundingBox, IGlyphRasterizer } from "../raster/raster.js";
import type { IReadableTextureAtlasPage, ITextureAtlasAllocator, ITextureAtlasPageGlyph } from "./atlas.js";
export type AllocatorType = "shelf" | "slab" | ((canvas: OffscreenCanvas, textureIndex: number) => ITextureAtlasAllocator);
export declare class TextureAtlasPage extends Disposable implements IReadableTextureAtlasPage {
    private readonly _logService;
    private _version;
    get version(): number;
    /**
     * The maximum number of glyphs that can be drawn to the page. This is currently a hard static
     * cap that must not be reached as it will cause the GPU buffer to overflow.
     */
    static readonly maximumGlyphCount = 5000;
    private _usedArea;
    get usedArea(): Readonly<IBoundingBox>;
    private readonly _canvas;
    get source(): OffscreenCanvas;
    private readonly _glyphMap;
    private readonly _glyphInOrderSet;
    get glyphs(): IterableIterator<ITextureAtlasPageGlyph>;
    private readonly _allocator;
    private _colorMap;
    constructor(textureIndex: number, pageSize: number, allocatorType: AllocatorType, _logService: ILogService, themeService: IThemeService);
    getGlyph(rasterizer: IGlyphRasterizer, chars: string, tokenMetadata: number, decorationStyleSetId: number): Readonly<ITextureAtlasPageGlyph> | undefined;
    private _createGlyph;
    getUsagePreview(): Promise<Blob>;
    getStats(): string;
}