@pixi/utils/lib/media/trimCanvas.js

Collection of utilities used by PixiJS

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var getCanvasBoundingBox = require('./getCanvasBoundingBox.js');

function trimCanvas(canvas) {
  const boundingBox = getCanvasBoundingBox.getCanvasBoundingBox(canvas);
  const { width, height } = boundingBox;
  let data = null;
  if (!boundingBox.isEmpty()) {
    const context = canvas.getContext("2d");
    if (context === null) {
      throw new TypeError("Failed to get canvas 2D context");
    }
    data = context.getImageData(boundingBox.left, boundingBox.top, width, height);
  }
  return { width, height, data };
}

exports.trimCanvas = trimCanvas;
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