diff options
Diffstat (limited to 'testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html')
-rw-r--r-- | testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html new file mode 100644 index 0000000000..3a97d9dc05 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> +<title>OffscreenCanvas test: 2d.imageData.get.nonpremul</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/html/canvas/resources/canvas-tests.js"></script> + +<h1>2d.imageData.get.nonpremul</h1> +<p class="desc">getImageData() returns non-premultiplied colors</p> + + +<script> +var t = async_test("getImageData() returns non-premultiplied colors"); +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 = 'rgba(255, 255, 255, 0.5)'; + ctx.fillRect(0, 0, 100, 50); + var imgdata = ctx.getImageData(10, 10, 10, 10); + _assert(imgdata.data[0] > 200, "imgdata.data[\""+(0)+"\"] > 200"); + _assert(imgdata.data[1] > 200, "imgdata.data[\""+(1)+"\"] > 200"); + _assert(imgdata.data[2] > 200, "imgdata.data[\""+(2)+"\"] > 200"); + _assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100"); + _assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200"); + t.done(); + +}); +</script> |