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-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/attribs/gl-disabled-vertex-attrib.html | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/attribs/gl-disabled-vertex-attrib.html b/dom/canvas/test/webgl-conf/checkout/conformance/attribs/gl-disabled-vertex-attrib.html new file mode 100644 index 0000000000..f4f8997449 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/attribs/gl-disabled-vertex-attrib.html @@ -0,0 +1,79 @@ +<!-- +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"> +<title>WebGL Disabled Vertex Attrib Test</title> +<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> +</head> +<body> +<canvas id="example" width="50" height="50"> +</canvas> +<div id="description"></div> +<div id="console"></div> +<script id="vshader" type="x-shader/x-vertex"> +attribute vec4 a_position; +attribute vec4 a_color; +varying vec4 v_color; +bool isCorrectColor(vec4 v) { + return v.x == 0.0 && v.y == 0.0 && v.z == 0.0 && v.w == 1.0; +} +void main() { + gl_Position = a_position; + v_color = isCorrectColor(a_color) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1); +} +</script> + +<script id="fshader" type="x-shader/x-fragment"> +precision mediump float; +varying vec4 v_color; +void main() { + gl_FragColor = v_color; +} +</script> + +<script> +"use strict"; +var wtu = WebGLTestUtils; +description(); + +var gl = wtu.create3DContext("example"); + +var numVertexAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS); +for (var ii = 0; ii < numVertexAttribs; ++ii) { + var colorLocation = (ii + 1) % numVertexAttribs; + var positionLocation = colorLocation ? 0 : 1; + + if (positionLocation != 0) { + // We need to create a new 3d context for testing attrib 0 + // since we've already effected attrib 0 on other tests. + gl = wtu.create3DContext(); + } + + debug("testing attrib: " + colorLocation); + var program = wtu.setupProgram( + gl, + ['vshader', 'fshader'], + ['a_position', 'a_color'], + [positionLocation, colorLocation]); + var gridRes = 1; + wtu.setupIndexedQuad(gl, gridRes, positionLocation); + wtu.clearAndDrawIndexedQuad(gl, gridRes); + wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green"); +} +wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); + +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> + |