interface WebGlContextManagerOptions {
    width: number;
    height: number;
}
/**
 * Generic utility wrapper to handle WebGL context
 * and various associated resources.
 */
export default class WebGlContextManager {
    gl: WebGLRenderingContext;
    buffers: {
        [key: string]: {
            target: number;
            buffer: WebGLBuffer;
            type: number;
            itemSize: number;
            numItems: number | null;
        };
    };
    attrIndex: {
        [key: string]: number;
    };
    uniformIndex: {
        [key: string]: WebGLUniformLocation;
    };
    private vertexShaderSource;
    private fragmentShaderSource;
    private attrNames;
    private uniformNames;
    constructor({ width, height }: WebGlContextManagerOptions);
    registerVertexShader(source: string): void;
    registerFragmentShader(source: string): void;
    registerAttr(name: string): void;
    registerUniform(name: string): void;
    registerBuffer(name: string, target: number, type: number, itemSize?: number): void;
    bufferData(name: string, srcData: ArrayBufferView, usage: number): void;
    bindBufferToAttr(bufferName: string, attrName: string, normalized?: boolean, stride?: number, offset?: number): void;
    drawBuffer(bufferName: string, mode: number, offset?: number): void;
    setupShaders(): void;
    private glHandleContextLost;
    private glHandleContextRestored;
}
export {};