fabric/src/filters/GLProbes/GLProbe.ts

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

export type GLPrecision = 'lowp' | 'mediump' | 'highp';

export abstract class GLProbe {
  declare GLPrecision: GLPrecision | undefined;
  abstract queryWebGL(canvas: HTMLCanvasElement): void;
  abstract isSupported(textureSize: number): boolean;
}