import * as Attributes from './GLAttribute';
import * as Uniforms from './uniform';
import UniformAccessObject = Uniforms.UniformAccessObject;
export declare class GLShader {
    /**
     * @protected
     * @member {WebGL2RenderingContext}
     */
    protected gl: WebGL2RenderingContext;
    /**
     * Shader Program
     * @protected
     * @member {WebGLProgram}
     */
    protected _program: WebGLProgram;
    protected _attributes: Attributes.AttributeMap;
    protected _uniforms: UniformAccessObject;
    protected _defines: {
        [x: string]: string | number;
    };
    private _vertexSrc;
    private _fragmentSrc;
    constructor(gl: WebGL2RenderingContext, vertexSrc?: string, fragmentSrc?: string);
    private getDefinesString;
    private getShaderSrcWithDefines;
    upload(): GLShader;
    addDefine(def: string, value: string | number): void;
    removeDefine(def: string): void;
    program: WebGLProgram;
    attributes: Attributes.AttributeMap;
    uniforms: UniformAccessObject | any;
    defines: {
        [p: string]: string | number;
    };
    /**
     * Bind this shader and tells the WebGLContext to use it
     */
    bind(): GLShader;
    /**
     * Unbinds this Shader and tells the WebGLContext to use no shader
     */
    unbind(): GLShader;
    /**
     * Destroy the program unloads it from the gpu
     */
    unload(): void;
    /**
     * Destroys the program in the WebGLContext nulls all objects in the Shader
     */
    destroy(): void;
    vertexSrc: string;
    fragmentSrc: string;
}