| Index: content/test/data/gpu/pixel_offscreenCanvas_webgl_resize_on_worker.html
|
| diff --git a/content/test/data/gpu/pixel_offscreenCanvas_webgl_resize_on_worker.html b/content/test/data/gpu/pixel_offscreenCanvas_webgl_resize_on_worker.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..ace65f3edd7d9afc6e6a01cddd26c437105ace44
|
| --- /dev/null
|
| +++ b/content/test/data/gpu/pixel_offscreenCanvas_webgl_resize_on_worker.html
|
| @@ -0,0 +1,116 @@
|
| +<!DOCTYPE HTML>
|
| +
|
| +<!-- READ BEFORE UPDATING:
|
| +If this test is updated make sure to increment the "revision" value of the
|
| +associated test in content/test/gpu/gpu_tests/pixel_test_pages.py. This will ensure
|
| +that the baseline images are regenerated on the next run.
|
| +-->
|
| +
|
| +<html>
|
| +<head>
|
| +<title>OffscreenCanvas webgl.commit with resizing: red triangle with softened edge.</title>
|
| +<style type="text/css">
|
| +.nomargin {
|
| + margin: 0px auto;
|
| +}
|
| +</style>
|
| +<script id="myWorker" type="text/worker">
|
| +function drawTriangle(gl)
|
| +{
|
| + gl.clearColor(0, 1, 0, 1);
|
| + gl.clear(gl.COLOR_BUFFER_BIT);
|
| +
|
| + var prog = gl.createProgram();
|
| + var vs = gl.createShader(gl.VERTEX_SHADER);
|
| + gl.shaderSource(vs, [
|
| + 'attribute vec2 pos;', 'void main() {',
|
| + ' gl_Position = vec4(pos, 0., .5);', '}'
|
| + ].join('\n'));
|
| + gl.compileShader(vs);
|
| + if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {
|
| + throw 'failed to compiled shader';
|
| + }
|
| + gl.attachShader(prog, vs);
|
| +
|
| + var fs = gl.createShader(gl.FRAGMENT_SHADER);
|
| + gl.shaderSource(
|
| + fs, [ 'void main() {', ' gl_FragColor = vec4(1, 0, 0.5, 1);', '}' ].join('\n'));
|
| + gl.compileShader(fs);
|
| + if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
|
| + throw 'failed to compiled shader';
|
| + }
|
| + gl.attachShader(prog, fs);
|
| +
|
| + gl.linkProgram(prog);
|
| + if (!gl.getProgramParameter(prog, gl.LINK_STATUS)) {
|
| + throw "Could not link the shader program!";
|
| + }
|
| + gl.useProgram(prog);
|
| +
|
| + gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
|
| + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ -.5, .5, 0, 0, -.5, -.5 ]),
|
| + gl.STATIC_DRAW);
|
| + var attr = gl.getAttribLocation(prog, 'pos');
|
| + gl.enableVertexAttribArray(attr);
|
| + gl.vertexAttribPointer(attr, 2, gl.FLOAT, false, 0, 0);
|
| +
|
| + gl.drawArrays(gl.TRIANGLE_STRIP, 0, 3);
|
| +
|
| +
|
| +}
|
| +
|
| +self.onmessage = function(e) {
|
| + var transfered = e.data;
|
| + // Resize the canvas from 200X200 to 40X50
|
| + // The triangle should scale proportionately with edge softened
|
| + transfered.width = 40;
|
| + transfered.height = 50;
|
| +
|
| + var gl = transfered.getContext('webgl');
|
| + drawTriangle(gl);
|
| + gl.commit();
|
| +
|
| + self.postMessage("");
|
| +};
|
| +</script>
|
| +<script>
|
| +var g_swapsBeforeAck = 15;
|
| +
|
| +function makeWorker(script)
|
| +{
|
| + var blob = new Blob([script]);
|
| + return new Worker(URL.createObjectURL(blob));
|
| +}
|
| +
|
| +function waitForFinish()
|
| +{
|
| + if (g_swapsBeforeAck == 0) {
|
| + domAutomationController.setAutomationId(1);
|
| + domAutomationController.send("SUCCESS");
|
| + } else {
|
| + g_swapsBeforeAck--;
|
| + document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1;
|
| + window.webkitRequestAnimationFrame(waitForFinish);
|
| + }
|
| +}
|
| +
|
| +function main()
|
| +{
|
| + var canvas2D = document.getElementById("c");
|
| + var offscreenCanvas = canvas2D.transferControlToOffscreen();
|
| + var worker = makeWorker(document.getElementById("myWorker").textContent);
|
| + worker.onmessage = function (e) {
|
| + waitForFinish();
|
| + };
|
| + worker.postMessage(offscreenCanvas, [offscreenCanvas]);
|
| +}
|
| +</script>
|
| +</head>
|
| +<body onload="main()">
|
| +<div style="position:relative; width:200px; height:200px; background-color:white">
|
| +</div>
|
| +<div id="container" style="position:absolute; top:0px; left:0px">
|
| +<canvas id="c" width="200" height="200" class="nomargin"></canvas>
|
| +</div>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 2588053003:
Make OffscreenCanvas resizable (Closed)
