2d.imageData.put.dirty.outside.worker.js

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.worker.html - WPT Dashboard Interop Dashboard

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.

// OffscreenCanvas test in a worker:2d.imageData.put.dirty.outside

// Description:putImageData() handles dirty rectangles outside the canvas correctly

// Note:

importScripts("/resources/testharness.js");

importScripts("/html/canvas/resources/canvas-tests.js");

var t = async_test("putImageData() handles dirty rectangles outside the canvas correctly");

var t_pass = t.done.bind(t);

var t_fail = t.step_func(function(reason) {

    throw reason;

});

t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);

  var ctx = canvas.getContext('2d');

  ctx.fillStyle = '#f00';

  ctx.fillRect(0, 0, 100, 50)

  var imgdata = ctx.getImageData(0, 0, 100, 50);

  ctx.fillStyle = '#0f0';

  ctx.fillRect(0, 0, 100, 50)

  ctx.putImageData(imgdata, 100, 20, 20, 20, -20, -20);

  ctx.putImageData(imgdata, 200, 200, 0, 0, 100, 50);

  ctx.putImageData(imgdata, 40, 20, -30, -20, 30, 20);

  ctx.putImageData(imgdata, -30, 20, 0, 0, 30, 20);

  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 98,15, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 98,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 98,45, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 1,5, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 1,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 1,45, 0,255,0,255, 2);

  t.done();

});

done();