The Tor Browser: content/canvas/test/webgl-mochitest/test_noprog

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 <!DOCTYPE HTML>

     2 <meta http-equiv="content-type" content="text/html; charset=utf-8" />

     4 <title>WebGL test: Drawing with a null program</title>

     6 <script src="/tests/SimpleTest/SimpleTest.js"></script>

     7 <link rel="stylesheet" href="/tests/SimpleTest/test.css">

     8 <script src="driver-info.js"></script>

     9 <script src="webgl-util.js"></script>

    12 <script id="vs" type="x-shader/x-vertex">

    14 void main(void) {

    15   gl_PointSize = 16.0;

    16   gl_Position = vec4(0.0, 0.0, 0.0, 1.0);

    17 }

    19 </script>

    20 <script id="fs" type="x-shader/x-fragment">

    22 precision mediump float;

    24 void main(void) {

    25   gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);

    26 }

    28 </script>

    29 <body>

    30 <canvas id="c" width="64" height="64"></canvas>

    31 <script>

    33 // Give ourselves a scope to return early from:

    34 (function() {

    35   var gl = WebGLUtil.getWebGL('c');

    36   if (!gl) {

    37     todo(false, 'WebGL is unavailable.');

    38     return;

    39   }

    41   function errorFunc(str) {

    42     ok(false, 'Error: ' + str);

    43   }

    44   WebGLUtil.setErrorFunc(errorFunc);

    45   WebGLUtil.setWarningFunc(errorFunc);

    47   gl.disable(gl.DEPTH_TEST);

    49   var prog   = WebGLUtil.createProgramByIds(gl, 'vs', 'fs');

    50   if (!prog) {

    51     ok(false, 'Program linking should succeed.');

    52     return;

    53   }

    55   function checkGLError(func, info, refValue) {

    56     if (!refValue)

    57       refValue = 0;

    59     var error = gl.getError();

    60     func(error == refValue,

    61          '[' + info + '] gl.getError should be 0x' + refValue.toString(16) +

    62                                         ', was 0x' + error.toString(16) + '.');

    63   }

    65   // Start drawing

    66   checkGLError(ok, 'after setup');

    68   gl.useProgram(prog);

    69   gl.drawArrays(gl.POINTS, 0, 1);

    70   checkGLError(ok, 'after non-null-program DrawArrays');

    72   gl.useProgram(null);

    73   gl.drawArrays(gl.POINTS, 0, 1);

    74   checkGLError(ok, 'after null-program DrawArrays', gl.INVALID_OPERATION);

    76   ok(true, 'Test complete.');

    77 })();

    79 </script>

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