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fix memory leak in SDL_Init()

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we use a static guard to only call SDL_Init() once.

Another option would be to call SDL_Quit(), but it doesn't seem to be
doing anything.

Also, fix the HTML code and add 'use strict' directive.

BUG=webp:354

Change-Id: I3c6421e2c1c8cc200556cd4092a0ead9a8b054ef
This commit is contained in:
skal
2017-07-31 12:45:07 -07:00
parent 461ae5551b
commit 6878d42720
3 changed files with 23 additions and 9 deletions
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11
webp_js/index.html
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@ -12,12 +12,15 @@
<script type="text/javascript" src="./webp.js"></script>
<script type="text/javascript">
'use strict';
// main wrapper for the function decoding a WebP into a canvas object
var WebpToCanvas;
function init() {
WebpToCanvas = Module.cwrap('WebpToSDL', 'number', ['array', 'number']);
}
window.onload = init;
function decode(webp_data, canvas_id) {
// get the canvas to decode into
@ -27,10 +30,10 @@ function decode(webp_data, canvas_id) {
Module.canvas = canvas;
canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height);
// decode and measure timing
start = new Date();
var start = new Date();
var ret = WebpToCanvas(webp_data, webp_data.length);
end = new Date();
speed_result = document.getElementById('timing');
var end = new Date();
var speed_result = document.getElementById('timing');
// display timing result
if (speed_result != null) {
var decode_time = end - start;
@ -53,7 +56,7 @@ function loadfile(filename, canvas_id) {
</script>
</head>
<body onload='init()'>
<body>
<p>
<strong>WebP in JavaScript demo</strong> -
</p>