Web/API/EXT disjoint timer query/getQueryObjectEXT

The EXT_disjoint_timer_query.getQueryObjectEXT() method of the WebGL API returns the state of a query object.

Syntax

any ext.getQueryObjectEXT(query, pname);

Parameters

query: A WebGLQuery object from which to return information.
pname: A GLenum specifying which information to return. Must be ext.QUERY_RESULT_EXT or ext.QUERY_RESULT_AVAILABLE_EXT.

Return value

Depends on pname:

If pname is ext.QUERY_RESULT_EXT: A GLuint64EXT containing the query result.
If pname is ext.QUERY_RESULT_AVAILABLE_EXT: A GLboolean indicating whether or not a query result is available.

Examples

var ext = gl.getExtension('EXT_disjoint_timer_query');
var query = ext.createQueryEXT();
ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, query);

// ... drawing ...

ext.endQueryEXT(ext.TIME_ELAPSED_EXT);



// At some point in the future, after returning control to the browser
var available = ext.getQueryObjectEXT(query, ext.QUERY_RESULT_AVAILABLE_EXT);
var disjoint = gl.getParameter(ext.GPU_DISJOINT_EXT);

if (available && !disjoint) {
  // See how much time the rendering of the object took in nanoseconds.
  var timeElapsed = ext.getQueryObjectEXT(query, ext.QUERY_RESULT_EXT);
}

Specifications

Specification	Status	Comment
EXT_disjoint_timer_queryThe definition of 'EXT_disjoint_timer_query' in that specification.	Working Draft	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`getQueryObjectEXT`	Chrome No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Edge No support No	Firefox No support 51 — 59 Notes' No support 51 — 59 Notes' Notes' Removed due to the GLitch exploit.	IE No support No	Opera No support 34 — 52 Notes' No support 34 — 52 Notes' Notes' Removed due to the GLitch exploit.	Safari No support No	WebView Android No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Chrome Android No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Firefox Android No support No	Opera Android No support 34 — 47 Notes' No support 34 — 47 Notes' Notes' Removed due to the GLitch exploit.	Safari iOS No support No	Samsung Internet Android No support 5.0 — 9.0 Notes' No support 5.0 — 9.0 Notes' Notes' Removed due to the GLitch exploit.

Legend

No support: No support
See implementation notes.': See implementation notes.