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27 lines
851 B
27 lines
851 B
7 years ago
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// Animated PNG
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// http://en.wikipedia.org/wiki/APNG
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// By Addy Osmani
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(function () {
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if (!Modernizr.canvas) return false;
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var image = new Image(),
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canvas = document.createElement('canvas'),
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ctx = canvas.getContext('2d');
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image.onload = function () {
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Modernizr.addTest('apng', function () {
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if (typeof canvas.getContext == 'undefined') {
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return false;
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} else {
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ctx.drawImage(image, 0, 0);
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return ctx.getImageData(0, 0, 1, 1).data[3] === 0;
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}
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});
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};
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image.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACGFjVEwAAAABAAAAAcMq2TYAAAANSURBVAiZY2BgYPgPAAEEAQB9ssjfAAAAGmZjVEwAAAAAAAAAAQAAAAEAAAAAAAAAAAD6A+gBAbNU+2sAAAARZmRBVAAAAAEImWNgYGBgAAAABQAB6MzFdgAAAABJRU5ErkJggg==";
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}());
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