import { Size } from '../math/Size';
import Program from './Program';
import Texture from './Texture';
declare type ShaderArgs = {
    rgbTexture: WebGLUniformLocation;
    alphaTexture: WebGLUniformLocation;
    a_position: GLint;
    a_texCoord: GLint;
};
export declare class RGBandA2RGBAShader {
    readonly gl: WebGLRenderingContext;
    readonly vertexBuffer: WebGLBuffer;
    readonly shaderArgs: ShaderArgs;
    readonly program: Program;
    static create(gl: WebGLRenderingContext): RGBandA2RGBAShader;
    private constructor();
    setTexture(textureRGB: Texture, textureAlpha: Texture): void;
    use(): void;
    release(): void;
    updateShaderData(encodedFrameSize: Size, maxXTexCoord: number, maxYTexCoord: number): void;
    draw(): void;
}
export {};