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<!--
/*
** 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>Simple Rendering 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">
There is supposed to be an example drawing here, but it's not important.
</canvas>
<div id="description"></div>
<div id="console"></div>
<script id="vshader" type="x-shader/x-vertex">
attribute vec4 a_Position;
void main()
{
gl_Position = a_Position;
}
</script>
<script id="fshader" type="x-shader/x-fragment">
void main()
{
gl_FragColor = vec4(0,1,0,1);
}
</script>
<script>
"use strict";
var wtu = WebGLTestUtils;
function init()
{
description();
var gl = wtu.create3DContext("example");
var program = wtu.loadProgramFromScript(gl, "vshader", "fshader");
gl.useProgram(program);
var loc = gl.getAttribLocation(program, "a_Position");
var vertexObject = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
gl.bufferData(
gl.ARRAY_BUFFER,
new Float32Array(
[ 1, 1,
-1, 1,
-1, -1,
1, 1,
-1, -1,
1, -1]),
gl.STATIC_DRAW);
gl.enableVertexAttribArray(loc);
gl.vertexAttribPointer(loc, 2, gl.FLOAT, false, 0, 0);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
wtu.checkCanvas(gl, [0,0,0,0], "should be black", 0);
gl.drawArrays(gl.TRIANGLES, 0, 6);
wtu.checkCanvas(gl, [0,255,0,255], "should be green", 0);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
}
init();
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>
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