<!--

/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/

-->

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GLSL distance 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: "distance",
  args: "$(type) p1, $(type) p2",
  baseArgs: "value$(field)",
  testFunc: "$(func)($(type),$(type))",
  emuFuncs: [
    { type: "float",
      code: [
        "float $(func)_emu($(args)) {",
        "   return abs(p1 - p2);",
        "}"].join("\n")
    },
    { type: "vec2",
      code: [
        "float $(func)_emu($(args)) {",
        "   return length(p1 - p2);",
        "}"].join("\n")
    },
    { type: "vec3",
      code: [
        "float $(func)_emu($(args)) {",
        "   return length(p1 - p2);",
        "}"].join("\n")
    },
    { type: "vec4",
      code: [
        "float $(func)_emu($(args)) {",
        "   return length(p1 - p2);",
        "}"].join("\n")
    }
  ],
  gridRes: 8,
  tests: [
    ["$(output) = vec4(",
     "    $(func)(",
     "        $(input).x * 8.0 - 4.0,",
     "        $(input).y * 8.0 - 4.0) / 8.0,",
     "    0,",
     "    0,",
     "    1);"].join("\n"),
    ["$(output) = vec4(",
     "    0,",
     "    $(func)(",
     "        $(input).xy * 8.0 - 4.0,",
     "        $(input).wz * 8.0 - 4.0) / 8.0,",
     "    0, 1);"].join("\n"),
    ["$(output) = vec4(",
     "    0, 0,",
     "    $(func)(",
     "        $(input).xyz * 8.0 - 4.0,",
     "        $(input).yzw * 8.0 - 4.0) / 8.0,",
     "    1);"].join("\n"),
    ["$(output) = vec4(",
     "    $(func)(",
     "        vec4($(input).xyz, 0) * 8.0 - 4.0,",
     "        vec4(0, $(input).wzy) * 8.0 - 4.0) / 8.0,",
     "    0, 0, 1);",
    ].join("\n")
  ]
});
var successfullyParsed = true;
</script>
</body>
</html>