1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/misc/shader-precision-format.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,83 @@
1.4 +<!--
1.5 +Copyright (c) 2011 Mozilla Foundation. All rights reserved.
1.6 +Use of this source code is governed by a BSD-style license that can be
1.7 +found in the LICENSE file.
1.8 + -->
1.9 +<!DOCTYPE html>
1.10 +<html>
1.11 +<head>
1.12 +<meta charset="utf-8">
1.13 +<title>WebGL shader precision format test.</title>
1.14 +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
1.15 +<script src="../../resources/js-test-pre.js"></script>
1.16 +<script src="../resources/webgl-test.js"> </script>
1.17 +<script src="../resources/webgl-test-utils.js"> </script>
1.18 +</head>
1.19 +<body>
1.20 +<canvas id="canvas" width="2" height="2" style="width: 40px; height: 40px;"></canvas>
1.21 +<div id="description"></div>
1.22 +<div id="console"></div>
1.23 +<script>
1.24 +var wtu = WebGLTestUtils;
1.25 +description(document.title);
1.26 +debug("Tests that WebGLShaderPrecisionFormat class and getShaderPrecisionFormat work.");
1.27 +debug("");
1.28 +var gl = wtu.create3DContext("canvas");
1.29 +
1.30 +function verifyShaderPrecisionFormat(shadertype, precisiontype) {
1.31 + shouldBeTrue('gl.getShaderPrecisionFormat(' + shadertype + ', ' +
1.32 + precisiontype + ') instanceof WebGLShaderPrecisionFormat');
1.33 +}
1.34 +
1.35 +if (gl.getShaderPrecisionFormat == null || typeof gl.getShaderPrecisionFormat != 'function') {
1.36 + debug("getShaderPrecisionFormat() function not found.");
1.37 +} else {
1.38 + debug("");
1.39 + debug("Test that getShaderPrecisionFormat returns a WebGLShaderPrecisionFormat object.");
1.40 + debug("");
1.41 +
1.42 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.LOW_FLOAT');
1.43 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.MEDIUM_FLOAT');
1.44 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.HIGH_FLOAT');
1.45 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.LOW_INT');
1.46 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.MEDIUM_INT');
1.47 + verifyShaderPrecisionFormat('gl.VERTEX_SHADER', 'gl.HIGH_INT');
1.48 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.LOW_FLOAT');
1.49 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.MEDIUM_FLOAT');
1.50 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.HIGH_FLOAT');
1.51 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.LOW_INT');
1.52 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.MEDIUM_INT');
1.53 + verifyShaderPrecisionFormat('gl.FRAGMENT_SHADER', 'gl.HIGH_INT');
1.54 +
1.55 + debug("");
1.56 + debug("Test that getShaderPrecisionFormat throws an error with invalid parameters.");
1.57 + debug("");
1.58 +
1.59 + shouldGenerateGLError(gl, gl.INVALID_ENUM, 'gl.getShaderPrecisionFormat(gl.HIGH_INT, gl.VERTEX_SHADER)');
1.60 +
1.61 + debug("");
1.62 + debug("Test that WebGLShaderPrecisionFormat values are sensible.");
1.63 + debug("");
1.64 +
1.65 + var shaderPrecisionFormat = gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.LOW_FLOAT);
1.66 + shouldBeTrue('shaderPrecisionFormat.rangeMin >= 0 && shaderPrecisionFormat.rangeMin <= 128');
1.67 + shouldBeTrue('shaderPrecisionFormat.rangeMax >= 0 && shaderPrecisionFormat.rangeMax <= 128');
1.68 + shouldBeTrue('shaderPrecisionFormat.precision >= 0 && shaderPrecisionFormat.precision <= 128');
1.69 +
1.70 + debug("");
1.71 + debug("Test that getShaderPrecisionFormat returns the same thing every call.");
1.72 + debug("");
1.73 +
1.74 + var shaderPrecisionFormat2 = gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.LOW_FLOAT);
1.75 + shouldBeTrue('shaderPrecisionFormat.rangeMin == shaderPrecisionFormat2.rangeMin');
1.76 + shouldBeTrue('shaderPrecisionFormat.rangeMax == shaderPrecisionFormat2.rangeMax');
1.77 + shouldBeTrue('shaderPrecisionFormat.precision == shaderPrecisionFormat2.precision');
1.78 +}
1.79 +
1.80 +finishTest();
1.81 +</script>
1.82 +
1.83 +</body>
1.84 +</html>
1.85 +
1.86 +
