import TileLayerCanvasRenderer from './TileLayerCanvasRenderer';
import { RenderContext, Tile } from './TileLayerRendererable';
import { SizeLike } from '../../../geo/Size';
declare const TileLayerGLRenderer_base: {
    new (...args: any[]): {
        gl: import("../../types").TileRenderingContext;
        canvas: import("../../types").TileRenderingCanvas;
        canvas2?: import("../../types").TileRenderingCanvas;
        _debugInfoCanvas?: import("../../types").TileRenderingCanvas;
        program?: import("../../types").TileRenderingProgram;
        _layerAlt: number;
        _layerAltitude: number;
        layer?: any;
        texBuffer?: import("../../types").TileImageBuffer;
        _debugBuffer?: import("../../types").TileImageBuffer;
        posBuffer?: import("../../types").TileImageBuffer;
        _imageBuffers?: import("../../types").TileImageBuffer[];
        _buffers?: import("../../types").TileImageBuffer[];
        _textures?: WebGLTexture[];
        getMap?(): import("../../..").Map;
        drawGLImage(image: import("../../types").TileImageType, x: number, y: number, w: number, h: number, scale: number, opacity: number, resized: any, debugInfo?: string, baseColor?: number[]): void;
        drawDebug(uMatrix: import("../../../core/util").Matrix4InOut, x: number, y: number, w: number, h: number, debugInfo: string): void;
        bufferTileData(x: number, y: number, w: number, h: number, buffer?: import("../../types").TileImageBuffer): import("../../types").TileImageBuffer;
        createCanvas2(): void;
        createGLContext(): void;
        resizeGLCanvas(): void;
        clearGLCanvas(): void;
        disposeImage(image: import("../../types").TileImageType): void;
        _createTexture(image: import("../../types").TileImageType): WebGLTexture;
        getTexture(): WebGLTexture;
        saveTexture(texture: WebGLTexture): void;
        loadTexture(image: import("../../types").TileImageType, resized?: boolean): WebGLTexture;
        getImageBuffer(): import("../../types").TileImageBuffer;
        saveImageBuffer(buffer: import("../../types").TileImageBuffer): void;
        loadImageBuffer(data: Float32Array | Int16Array, glBuffer: import("../../types").TileImageBuffer): import("../../types").TileImageBuffer;
        createImageBuffer(): import("../../types").TileImageBuffer;
        removeGLCanvas(): void;
        createBuffer(): import("../../types").TileImageBuffer;
        enableVertexAttrib(attributes: import("../../types").VertexAttrib): void;
        createProgram(vert: string, frag: string): import("../../types").TileRenderingProgram;
        useProgram(program: import("../../types").TileRenderingProgram): any;
        enableSampler(sampler: string, texIdx?: number): WebGLUniformLocation;
        _initUniforms(program: import("../../types").TileRenderingProgram, uniforms: string[]): void;
        _getUniform(program: import("../../types").TileRenderingProgram, uniformName: string): WebGLUniformLocation;
        set8(a0: number, a1: number, a2: number, a3: number, a4: number, a5: number, a6: number, a7: number): Float32Array;
        set8Int(a0: number, a1: number, a2: number, a3: number, a4: number, a5: number, a6: number, a7: number): Int16Array;
    };
} & typeof TileLayerCanvasRenderer;
/**
 * 基于 HTML5 WebGL 的 TileLayers 渲染器
 *
 * @english
 * Renderer class based on HTML5 WebGL for TileLayers
 * @class
 * @protected
 * @group renderer
 * @extends {renderer.TileLayerCanvasRenderer}
 * @param layer - TileLayer to render
 */
declare class TileLayerGLRenderer extends TileLayerGLRenderer_base {
    isDrawable(): boolean;
    needToRedraw(): boolean;
    onDrawTileStart(context: RenderContext, parentContext: RenderContext): void;
    onDrawTileEnd(context: RenderContext, parentContext: RenderContext): void;
    drawTile(tileInfo: Tile['info'], tileImage: Tile['image'], parentContext: RenderContext): void;
    loadTileImage(tileImage: HTMLImageElement, url: string): void;
    /**
     * prepare gl, create program, create buffers and fill unchanged data: image samplers, texture coordinates
     */
    onCanvasCreate(): void;
    createContext(): void;
    resizeCanvas(canvasSize: SizeLike): void;
    clearCanvas(): void;
    getCanvasImage(): any;
    /**
     * decide whether the layer is renderer with gl.
     * when map is pitching, or fragmentShader is set in options
     */
    isGL(): boolean;
    deleteTile(tile: Tile): void;
    onRemove(): void;
}
export default TileLayerGLRenderer;
//# sourceMappingURL=TileLayerGLRenderer.d.ts.map