2d.imageData.put.basic.rgba.float16.html (1469B)
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.imageData.put.basic.rgba.float16</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.imageData.put.basic.rgba.float16</h1> 10 <p class="desc">putImageData() puts 16-bit floating point image data from getImageData() onto the canvas</p> 11 12 13 <script> 14 var t = async_test("putImageData() puts 16-bit floating point image data from getImageData() onto the canvas"); 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', {colorSpace: "srgb", colorType: "float16"}); 23 24 ctx.fillStyle = 'color(display-p3 1 0 0)'; 25 ctx.fillRect(0, 0, 100, 50) 26 var imgdata = ctx.getImageData(0, 0, 100, 50, {colorSpace:"srgb", pixelFormat:"rgba-float16"}); 27 ctx.fillStyle = '#f00'; 28 ctx.fillRect(0, 0, 100, 50) 29 ctx.putImageData(imgdata, 0, 0); 30 var pixel = ctx.getImageData(0, 0, 1, 1, {colorSpace:"display-p3", pixelFormat:"rgba-float16"}); 31 assert_approx_equals(pixel.data[0], 1, 0.01); 32 assert_approx_equals(pixel.data[1], 0, 0.01); 33 assert_approx_equals(pixel.data[2], 0, 0.01); 34 assert_approx_equals(pixel.data[3], 1, 0.01); 35 t.done(); 36 37 }); 38 </script>