invariant-does-not-leak-across-shaders.html

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<title>Invariant does not leak across shaders</title>

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

varying vec4 v_varying;

invariant v_varying;

void main()

    gl_Position = v_varying;

</script>

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

precision mediump float;

invariant varying vec4 v_varying;

void main()

    gl_FragColor = v_varying;

</script>

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

varying vec4 v_varying;

void main() {

    gl_Position = v_varying;

</script>

<script type="text/javascript">

"use strict";

description("The use of the invariant qualifier in one shader must not affect other shaders.");

debug("");

debug("This is a deliberate subset of conformance/glsl/misc/shaders-with-invariance.html.");

debug("Compared with the original tests, order of the tests is different.");

debug("This test covers an ANGLE bug. See crbug.com/634813.");

GLSLConformanceTester.runTests([

    vShaderId: "InvariantVertex",

    vShaderSuccess: true,

    fShaderId: "InvariantFragment",

    fShaderSuccess: true,

    linkSuccess: true,

    passMsg: "Shaders using invariant qualifier should compile and link."

},

    vShaderId: "VertexWithVarying",

    vShaderSuccess: true,

    fShaderId: "InvariantFragment",

    fShaderSuccess: true,

    linkSuccess: false,

    passMsg: "vertex shader with variant varying and fragment shader with invariant varying must fail"

},

]);

</script>

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</html>