1 files changed, 87 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-length.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-length.html
new file mode 100644
index 0000000000..f3f04f4543
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-length.html
@@ -0,0 +1,87 @@
+<!--
+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>GLSL length function test</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
+<script src="../../../js/js-test-pre.js"></script>
+<script src="../../../js/webgl-test-utils.js"> </script>
+<script src="../../../js/glsl-generator.js"> </script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+
+GLSLGenerator.runFeatureTest({
+  feature: "length",
+  args: "$(type) value",
+  baseArgs: "value$(field)",
+  testFunc: "$(func)($(type))",
+  fragmentTolerance: 1,
+  emuFuncs: [
+    { type: "float",
+      code: [
+        "float $(func)_emu($(args)) {",
+        "   return abs($(baseArgs));",
+        "}"].join("\n")
+    },
+    { type: "vec2",
+      code: [
+        "float $(func)_emu($(args)) {",
+        "   return sqrt(",
+        "       $(baseArgsX) * $(baseArgsX) + ",
+        "       $(baseArgsY) * $(baseArgsY));",
+        "}"].join("\n")
+    },
+    { type: "vec3",
+      code: [
+        "float $(func)_emu($(args)) {",
+        "   return sqrt(",
+        "       $(baseArgsX) * $(baseArgsX) + ",
+        "       $(baseArgsY) * $(baseArgsY) + ",
+        "       $(baseArgsZ) * $(baseArgsZ));",
+        "}"].join("\n")
+    },
+    { type: "vec4",
+      code: [
+        "float $(func)_emu($(args)) {",
+        "   return sqrt(",
+        "       $(baseArgsX) * $(baseArgsX) + ",
+        "       $(baseArgsY) * $(baseArgsY) + ",
+        "       $(baseArgsZ) * $(baseArgsZ) + ",
+        "       $(baseArgsW) * $(baseArgsW));",
+        "}"].join("\n")
+    }
+  ],
+  gridRes: 8,
+  tests: [
+    ["$(output) = vec4(",
+     "    $(func)($(input).x * 8.0 - 4.0) / 4.0,",
+     "    $(func)($(input).y * 8.0 - 4.0) / 4.0,",
+     "    0,",
+     "    1);"].join("\n"),
+    ["$(output) = vec4(",
+     "    $(func)($(input).xy * 8.0 - 4.0) / 4.0,",
+     "    0, 0, 1);"].join("\n"),
+    ["$(output) = vec4(",
+     "    $(func)($(input).xyz * 8.0 - 4.0) / 4.0,",
+     "    0, 0, 1);"].join("\n"),
+    ["$(output) = vec4(",
+     "    $(func)($(input) * 8.0 - 4.0) / 4.0, 0, 0, 1);",
+    ].join("\n")
+  ]
+});
+var successfullyParsed = true;
+</script>
+</body>
+</html>
+