gradient-in-discontinuous-loop.html

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Copyright (c) 2019 The Khronos Group Inc.

Use of this source code is governed by an MIT-style license that can be

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<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>Short circuit in loop condition 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>

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<body>

<div id="description"></div>

<div id="console"></div>

<script id="vertex-shader" type="x-shader/x-vertex">#version 300 es

  precision highp float;

  in vec4 aPosition;

  void main() {

    gl_Position = aPosition;

</script>

<script id="fragment-shader" type="x-shader/x-fragment">#version 300 es

precision highp float;

precision highp int;

uniform vec4      iMouse;

uniform sampler2D iChannel0;

float map(float p)

    return texture(iChannel0, vec2(p, p), 0.0).y;

out vec4 outColor;

void main(void)

    float sum = 0.0;

    for(int i=0; i<1000; i++)

        if( sum > 0.99 ) break;

                float p = iMouse.x + gl_FragCoord.x;

        sum = map(p);

    outColor = vec4(sum);

</script>

<script type="text/javascript">

"use strict";

description("Test an HLSL compiler freeze on a gradient inside a discontinuous loop.");

var wtu = WebGLTestUtils;

var gl = wtu.create3DContext(undefined, undefined, 2);

wtu.setupUnitQuad(gl);

if (!gl) {

    testFailed("context does not exist");

} else {

    var program = wtu.setupProgram(gl, ["vertex-shader", "fragment-shader"], ['aPosition'], undefined, true);

    if (!program) {

        testFailed('Program compilation failed');

var successfullyParsed = true;

finishTest();

</script>

</body>

</html>