2d.transformation.scale.negative.html (1136B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <meta charset="UTF-8"> 4 <title>OffscreenCanvas test: 2d.transformation.scale.negative</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/html/canvas/resources/canvas-tests.js"></script> 8 9 <h1>2d.transformation.scale.negative</h1> 10 <p class="desc">scale() with negative scale factors works</p> 11 12 13 <script> 14 var t = async_test("scale() with negative scale factors works"); 15 var t_pass = t.done.bind(t); 16 var t_fail = t.step_func(function(reason) { 17 throw reason; 18 }); 19 t.step(function() { 20 21 var canvas = new OffscreenCanvas(100, 50); 22 var ctx = canvas.getContext('2d'); 23 24 ctx.fillStyle = '#f00'; 25 ctx.fillRect(0, 0, 100, 50); 26 27 ctx.save(); 28 ctx.scale(-1, 1); 29 ctx.fillStyle = '#0f0'; 30 ctx.fillRect(-50, 0, 50, 50); 31 ctx.restore(); 32 33 ctx.save(); 34 ctx.scale(1, -1); 35 ctx.fillStyle = '#0f0'; 36 ctx.fillRect(50, -50, 50, 50); 37 ctx.restore(); 38 _assertPixel(canvas, 25,25, 0,255,0,255); 39 _assertPixel(canvas, 75,25, 0,255,0,255); 40 t.done(); 41 42 }); 43 </script>