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ext.getQueryEXT

The EXT_disjoint_timer_query.getQueryEXT() method of the WebGL API returns information about a query target.

Syntax

any ext.getQueryEXT(target, pname);

Parameters

target
A GLenum specifying the target of the time query. Must be ext.TIMESTAMP_EXT or ext.TIME_ELAPSED_EXT.
pname
A GLenum specifying which information to return. Must be ext.CURRENT_QUERY_EXT or ext.QUERY_COUNTER_BITS_EXT.

Return value

Depends on pname:

  • If pname is ext.CURRENT_QUERY_EXT: A WebGLQuery object, which is the currently active query for the given target.
  • If pname is ext.QUERY_COUNTER_BITS_EXT: A GLint indicating the number of bits used to hold the query result for the given target.

Examples

var ext = gl.getExtension('EXT_disjoint_timer_query');
var startQuery = ext.createQueryEXT();
ext.queryCounterEXT(startQuery, ext.TIMESTAMP_EXT);

var currentQuery = ext.getQueryEXT(ext.TIMESTAMP_EXT, 
                                   ext.CURRENT_QUERY_EXT);

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 47 No 51 ? ? ?
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support ? 47 No No ? ? ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/EXT_disjoint_timer_query/getQueryEXT