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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/extra/point-no-attributes-stress.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/extra/point-no-attributes-stress.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/extra/point-no-attributes-stress.html b/dom/canvas/test/webgl-conf/checkout/extra/point-no-attributes-stress.html new file mode 100644 index 0000000000..f567264907 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/extra/point-no-attributes-stress.html @@ -0,0 +1,61 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<link rel="stylesheet" href="../resources/js-test-style.css"/> +<script src="../js/js-test-pre.js"></script> +<script src="../js/webgl-test-utils.js"></script> +<script id="vshader" type="x-shader/x-vertex"> +void main() +{ + gl_PointSize = 1.0; + gl_Position = vec4(0.0, 0.0, 0.0, 1.0); +} +</script> + +<script id="fshader" type="x-shader/x-fragment"> +precision mediump float; + +void main() +{ + gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0); +} +</script> +</head> +<body> +<canvas id="testbed" width="1" height="1" style="width: 100px; height: 100px;"></canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +description('Stress test drawing a huge number of points without enabling any attributes'); + +debug('This test stresses drawing a large number of points and workarounds created to run WebGL with simulated attrib 0'); + +if (confirm('After clicking OK your machine may become unresponsive or crash.')) { + var wtu = WebGLTestUtils; + var gl = wtu.create3DContext('testbed'); + + var program1 = wtu.setupProgram(gl, ['vshader', 'fshader']); + + gl.enable(gl.BLEND); + + debug('Draw 2^31 points with a shader that takes no attributes and verify it fills the whole canvas.'); + + gl.drawArrays(gl.POINTS, 0, Math.pow(2, 31) - 1); + wtu.glErrorShouldBe(gl, gl.NO_ERROR); + wtu.checkCanvas(gl, [0, 255, 0, 255]); +} + +var successfullyParsed = true; +</script> +<script src="../js/js-test-post.js"></script> + +</body> +</html> |