import { ResizeOptions } from './resize';
export declare const vsSource = "#version 300 es\n precision highp float;\n in vec2 a_position;\n in vec2 a_texCoord;\n out vec2 v_texCoord;\n void main(){\n   v_texCoord = a_texCoord;\n   gl_Position = vec4(a_position, 0.0, 1.0);\n }\n ";
export declare function generateHorizontalShader(filterFunction: ResizeOptions['filter']): string;
export declare function generateVerticalShader(filterFunction: ResizeOptions['filter']): string;
export declare function getResizeWindow(filterFunction: ResizeOptions['filter']): number;