Eclipse中通过Android模拟器调用OpenGL ES2 0函数操作步骤 _模拟器

博观而约取，厚积而薄发。这篇文章主要讲述Eclipse中通过Android模拟器调用OpenGL ES2 0函数操作步骤相关的知识，希望能为你提供帮助。
1、先按照http://blog.csdn.net/fengbingchun/article/details/10439281中操作搭建好基本的android开发环境；
2、打开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中勾选Use HostGPU,点击OK；
3、选中新建的Android_OpenGLES,--> Start--> Launch，如果运行失败，则将其C:UsersSpring.androidavdAndroid_OpenGLES.avd文件夹中的config.ini文件，将hw.ramSize=1024改为hw.ramSize=1024MB，保存，再次运行即会成功；
4、创建一个新工程，判断设备是否支持OpenGL ES2.0；
5、 File--> New--> Project…--> Android--> Android ApplicationProject--> Next--> Application Name:FirstOpenGLProject,Package Name:com.firstopenglproject.android,MinimumRequired SDK:API 10, Android 2.3.3(Gingerbread)(this is the minimum versionwith full OpenGL ES 2.0 support), Next--> 不勾选Create customlauncher icon,勾选Create activity,Next--> 选中Blank Activity,Next--> Activity Name:FirstOpenGLProjectActivity--> Finish;
打开src--> com.firstopenglproject.android--> FirstOpenGLProjectActivity.java，将其内容改为：

package com.firstopenglproject.android; import android.app.Activity; import android.app.ActivityManager; import android.content.Context; import android.content.pm.ConfigurationInfo; import android.opengl.GLSurfaceView; import android.os.Build; import android.os.Bundle; import android.view.Menu; import android.widget.Toast; public class FirstOpenGLProjectActivity extends Activity { private GLSurfaceView glSurfaceView; private boolean rendererSet = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.activity_first_open_glproject); glSurfaceView = new GLSurfaceView(this); final ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo(); final boolean supportsEs2 = 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(new FirstOpenGLProjectRenderer()); rendererSet = true; } else { Toast.makeText(this, "This device does not support OpenGL ES 2.0.", Toast.LENGTH_LONG).show(); return; } setContentView(glSurfaceView); } @Override protected void onPause() { super.onPause(); if (rendererSet) { glSurfaceView.onPause(); } }@Override protected void onResume() { super.onResume(); if (rendererSet) { glSurfaceView.onResume(); } } }

7、选中com.firstopenglproject.android,点击右键--> New--> Class,Name:FirstOpenGLProjectRenderer--> Finish,其内容为：

package com.firstopenglproject.android; import static android.opengl.GLES20.GL_COLOR_BUFFER_BIT; import static android.opengl.GLES20.glClear; import static android.opengl.GLES20.glClearColor; import static android.opengl.GLES20.glViewport; import javax.microedition.khronos.egl.EGLConfig; import javax.microedition.khronos.opengles.GL10; import android.opengl.GLSurfaceView.Renderer; public class FirstOpenGLProjectRenderer implements Renderer { @Override public void onSurfaceCreated(GL10 glUnused, EGLConfig config) {glClearColor(1.0f, 0.0f, 0.0f, 0.0f); }@Override public void onSurfaceChanged(GL10 glUnused, int width, int height) { // 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 done at the refresh rate of the screen. */ @Override public void onDrawFrame(GL10 glUnused) { // Clear the rendering surface. glClear(GL_COLOR_BUFFER_BIT); } }

8、选中工程，右键--> Run As--> Android Application,将会显示空白红色屏幕。

参考文献：《OpenGL ES 2.0 for Android》

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