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https://github.com/servo/servo.git
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b3ac346749
This commit also: * Allows to return non-rootable dictionaries from Codegen. * Merges the two context types in an enum type.
39 lines
1.1 KiB
HTML
39 lines
1.1 KiB
HTML
<meta charset="utf-8">
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<title>WebGL Context Attributes test</title>
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<script>
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(function () {
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var canvas = document.createElement('canvas'),
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closure = function() {},
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gl, attributes;
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closure.alpha = false;
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closure.antialias = "";
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gl = canvas.getContext("webgl", closure);
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if ( ! gl ) {
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console.log("Passing a closure to `getContext` didn't generate a context");
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gl = canvas.getContext("webgl", { alpha: false, antialias: "" });
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}
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if ( ! gl ) {
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console.error("Unable to generate a WebGL context");
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return;
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}
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attributes = gl.getContextAttributes();
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console.log("Got context attributes: ", JSON.stringify(attributes));
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if ( attributes.alpha )
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console.error("Alpha not expected");
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if ( attributes.antialias )
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console.error("Antialias not expected, should be casted to false");
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gl = canvas.getContext("webgl", { alpha: true });
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attributes = gl.getContextAttributes();
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if ( attributes.alpha )
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console.error("Should have returned the previous context attributes");
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})();
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</script>
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