Android Context Get getOpenGLESVersion(final Context context)

Description

This method returns the version code of OpenGL ES on the system.

License

Open Source License

Parameter

Parameter	Description
context	A Context instance.

Return

The OpenGL ES version.

Declaration

public static int getOpenGLESVersion(final Context context) 

Method Source Code

//package com.java2s;
/*/*from   ww w  . j av a  2  s  . c  om*/
 * Copyright (C) 2013 Niall 'Rivernile' Scott
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors or contributors be held liable for
 * any damages arising from the use of this software.
 *
 * The aforementioned copyright holder(s) hereby grant you a
 * non-transferrable right to use this software for any purpose (including
 * commercial applications), and to modify it and redistribute it, subject to
 * the following conditions:
 *
 *  1. This notice may not be removed or altered from any file it appears in.
 *
 *  2. Any modifications made to this software, except those defined in
 *     clause 3 of this agreement, must be released under this license, and
 *     the source code of any modifications must be made available on a
 *     publically accessible (and locateable) website, or sent to the
 *     original author of this software.
 *
 *  3. Software modifications that do not alter the functionality of the
 *     software but are simply adaptations to a specific environment are
 *     exempt from clause 2.
 */

import android.content.Context;
import android.content.pm.FeatureInfo;
import android.content.pm.PackageManager;

public class Main {
    /**
     * This method returns the version code of OpenGL ES on the system. If the
     * version could not be determined, version 1 is assumed. This code came
     * from;
     * 
     * http://stackoverflow.com/questions/6450709/detect-if-opengl-es-2-0-is-available-or-not
     * 
     * @param context A Context instance.
     * @return The OpenGL ES version.
     */
    public static int getOpenGLESVersion(final Context context) {
        final PackageManager packageManager = context.getPackageManager();
        final FeatureInfo[] featureInfos = packageManager
                .getSystemAvailableFeatures();

        if (featureInfos != null && featureInfos.length > 0) {
            for (FeatureInfo featureInfo : featureInfos) {
                // Null feature name means this feature is the OpenGL ES version
                // feature.
                if (featureInfo.name == null) {
                    if (featureInfo.reqGlEsVersion != FeatureInfo.GL_ES_VERSION_UNDEFINED) {
                        return (featureInfo.reqGlEsVersion & 0xffff0000) >> 16;
                    } else {
                        return 1; // Lack of property means OpenGL ES version 1
                    }
                }
            }
        }

        return 1;
    }
}

Related

1. getMobilityPackageInfo(Context context)
2. getMobilityVersion(Context context)
3. getMusesAppContext()
4. getNameFromUri(Context context, Uri uri)
5. getOffset(Context context)
6. getOrientation(Context context, Uri photoUri)
7. getPackageName(final Context context)
8. getPackageVersion(Context c)
9. getPackageVersionAsInt(Context c)