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EXT_disjoint_timer_query: getQueryEXT() method

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

Syntax

js

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

js

const ext = gl.getExtension("EXT_disjoint_timer_query");
const startQuery = ext.createQueryEXT();
ext.queryCounterEXT(startQuery, ext.TIMESTAMP_EXT);

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

Specifications

Specification
WebGL EXT_disjoint_timer_query Extension Specification

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
getQueryEXT
70Only supported on macOS.
47–65Removed due to the GLitch exploit.
79Only supported on macOS.
51–59Removed due to the GLitch exploit.
 No
57Only supported on macOS.
34–52Removed due to the GLitch exploit.
 No
47–65Removed due to the GLitch exploit.
47–65Removed due to the GLitch exploit.
 No
34–47Removed due to the GLitch exploit.
 No
5.0–9.0Removed due to the GLitch exploit.

See also

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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