Steps to call OpenGL ES2.0 functions in eclipse via the Android emulator

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Steps to invoke OpenGL ES2.0 function via Android emulator in Eclipse-network resources are unlimited-blog channel-csdn.net
http://blog.csdn.net/fengbingchun/article/details/11192189

1, first in accordance with the http://blog.csdn.net/fengbingchun/article/details/10439281 operation to build a basic Android development environment;

2. Open eclipse,-->window-->androidvirtual device MANAGER-->NEW-->AVD name:android_opengles, device: Galaxynexus (4.65 ", 720*1280:xhdpi), target:android 4.3-api level 18; Emulation options Check the use HOSTGPU, click OK;

3. Select the new Android_opengles,-->start-->launch, and if the run fails, C:\Users\Spring\.android\avd\Android_ it Opengles.avd folder in the Config.ini file, will hw.ramsize=1024 changed to HW.RAMSIZE=1024MB, save, run again will be successful;

4, create a new project, to determine whether the device supports OpenGL ES2.0;

5. File-->new-->project...-->android-->android applicationproject-->next-->application Name: Firstopenglproject,package name:com.firstopenglproject.android,minimumrequired SDK:API, Android 2.3.3 ( Gingerbread) (This was the minimum versionwith full OpenGL ES 2.0 support), next--> do not tick create Customlauncher icon, tick create Activity,next--> Select Blank Activity,next-->activity name:firstopenglprojectactivity-->finish;

6. Open the Src-->com.firstopenglproject.android-->firstopenglprojectactivity.java and change its contents to:

 Packagecom.firstopenglproject.android;Importandroid.app.Activity;ImportAndroid.app.ActivityManager;ImportAndroid.content.Context;ImportAndroid.content.pm.ConfigurationInfo;ImportAndroid.opengl.GLSurfaceView;ImportAndroid.os.Build;ImportAndroid.os.Bundle;ImportAndroid.view.Menu;ImportAndroid.widget.Toast; Public classFirstopenglprojectactivityextendsActivity {PrivateGlsurfaceview Glsurfaceview; Private BooleanRendererset =false; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); //Setcontentview (r.layout.activity_first_open_glproject);Glsurfaceview =NewGlsurfaceview ( This); FinalActivitymanager Activitymanager =(Activitymanager) Getsystemservice (Context.activity_service); FinalConfigurationinfo Configurationinfo =Activitymanager.getdeviceconfigurationinfo (); Final BooleanSUPPORTSES2 =configurationinfo.reqglesversion>= 0x20000 | | (Build.VERSION.SDK_INT >=Build.version_codes. ICE_CREAM_SANDWICH_MR1&& (Build.FINGERPRINT.startsWith ("GENERIC")                      || Build.FINGERPRINT.startsWith ("Unknown")                      || Build.MODEL.contains ("Google_sdk")                      || Build.MODEL.contains ("Emulator")                      || Build.MODEL.contains ("Android SDK built for x86"))); if(SUPPORTSES2) {//Request an OpenGL ES 2.0 compatible context.Glsurfaceview.seteglcontextclientversion (2); //Assign our renderer.Glsurfaceview.setrenderer (Newfirstopenglprojectrenderer ()); Rendererset=true; } Else{Toast.maketext ( This, "This device does not support OpenGL ES 2.0.", Toast.length_long). Show (); return;    } setcontentview (Glsurfaceview); } @Overrideprotected voidOnPause () {Super. OnPause (); if(Rendererset) {glsurfaceview.onpause (); }} @Overrideprotected voidOnresume () {Super. Onresume (); if(Rendererset) {glsurfaceview.onresume (); }    }}

7, select Com.firstopenglproject.android, right click-->new-->class,name:firstopenglprojectrenderer-->finish, the content is:

 Packagecom.firstopenglproject.android;Import StaticAndroid.opengl.GLES20.GL_COLOR_BUFFER_BIT;Import Staticandroid.opengl.GLES20.glClear;Import StaticAndroid.opengl.GLES20.glClearColor;Import StaticAndroid.opengl.GLES20.glViewport;ImportJavax.microedition.khronos.egl.EGLConfig;Importjavax.microedition.khronos.opengles.GL10;ImportAndroid.opengl.GLSurfaceView.Renderer; Public classFirstopenglprojectrendererImplementsRenderer {@Override Public voidonsurfacecreated (GL10 glunused, EGLConfig config) {glclearcolor (1.0f, 0.0f, 0.0f, 0.0f); } @Override Public voidOnsurfacechanged (GL10 glunused,intWidthintheight) {        //Set the OpenGL viewport to fill the entire surface.Glviewport (0, 0, width, height); }    /*** Ondrawframe is called whenever a new frame needs to be drawn.     Normally, * This is do at the "refresh rate" of the screen. */@Override Public voidondrawframe (GL10 glunused) {//Clear the rendering surface.glclear (gl_color_buffer_bit); }}

8, select the project, right--->run as-->android application, will display a blank red screen.

References: "OpenGL ES 2.0 for Android"

Steps to call OpenGL ES2.0 functions in eclipse via the Android emulator