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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.angleIntegrationTest.common;
     18 
     19 import static javax.microedition.khronos.egl.EGL10.EGL_STENCIL_SIZE;
     20 
     21 import android.annotation.TargetApi;
     22 import android.content.Context;
     23 import android.opengl.EGL14;
     24 import android.opengl.GLES20;
     25 import android.opengl.GLSurfaceView;
     26 import android.os.Build.VERSION_CODES;
     27 import android.util.Log;
     28 import android.view.SurfaceHolder;
     29 import android.view.SurfaceView;
     30 import javax.microedition.khronos.egl.EGL10;
     31 import javax.microedition.khronos.egl.EGLConfig;
     32 import javax.microedition.khronos.egl.EGLContext;
     33 import javax.microedition.khronos.egl.EGLDisplay;
     34 import javax.microedition.khronos.egl.EGLSurface;
     35 
     36 /**
     37  * GLES View Class to get access to GLES20.glGetString()
     38  */
     39 
     40 @TargetApi(VERSION_CODES.GINGERBREAD)
     41 public class GlesView extends SurfaceView implements SurfaceHolder.Callback2 {
     42 
     43     private static final EGL10 EGL = (EGL10) EGLContext.getEGL();
     44     private EGLConfig eglConfig;
     45     private EGLDisplay display;
     46     private SurfaceHolder mSurfaceHolder;
     47     private String mRenderer = "";
     48 
     49     private final String TAG = this.getClass().getSimpleName();
     50 
     51     public GlesView(Context context) {
     52       super(context);
     53       this.setWillNotDraw(false);
     54       getHolder().addCallback(this);
     55       createEGL();
     56       getHolder().getSurface();
     57     }
     58 
     59     @TargetApi(VERSION_CODES.JELLY_BEAN_MR1)
     60     private void createEGL() {
     61         int[] version = new int[2];
     62         display = EGL.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
     63         EGL.eglInitialize(display, version);
     64 
     65         int[] numConfigs = new int[1];
     66         EGL.eglGetConfigs(display, null, 0, numConfigs);
     67         EGLConfig[] allConfigs = new EGLConfig[numConfigs[0]];
     68         EGL.eglGetConfigs(display, allConfigs, numConfigs[0], numConfigs);
     69 
     70         int[] configAttrib =
     71             new int[] {
     72                 EGL10.EGL_RENDERABLE_TYPE,
     73                 EGL14.EGL_OPENGL_ES2_BIT,
     74                 EGL10.EGL_SURFACE_TYPE,
     75                 EGL10.EGL_WINDOW_BIT,
     76                 EGL10.EGL_RED_SIZE,
     77                 8,
     78                 EGL10.EGL_GREEN_SIZE,
     79                 8,
     80                 EGL10.EGL_BLUE_SIZE,
     81                 8,
     82                 EGL10.EGL_ALPHA_SIZE,
     83                 8,
     84                 EGL10.EGL_DEPTH_SIZE,
     85                 16,
     86                 EGL_STENCIL_SIZE,
     87                 0,
     88                 EGL10.EGL_NONE
     89             };
     90 
     91         EGLConfig[] selectedConfig = new EGLConfig[1];
     92         EGL.eglChooseConfig(display, configAttrib, selectedConfig, 1, numConfigs);
     93         if (selectedConfig[0] != null) {
     94             eglConfig = selectedConfig[0];
     95             Log.i(TAG, "Found matching EGL config");
     96         } else {
     97             Log.e(TAG, "Could not find matching EGL config");
     98             throw new RuntimeException("No Matching EGL Config Found");
     99         }
    100     }
    101 
    102     @TargetApi(VERSION_CODES.JELLY_BEAN_MR1)
    103     @Override
    104     public void surfaceCreated(SurfaceHolder holder) {
    105       EGLSurface surface = EGL.eglCreateWindowSurface(display, eglConfig, this, null);
    106         int[] contextAttribs = new int[] {EGL14.EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE};
    107       EGLContext context = EGL
    108           .eglCreateContext(display, eglConfig, EGL10.EGL_NO_CONTEXT, contextAttribs);
    109         EGL.eglMakeCurrent(display, surface, surface, context);
    110 
    111         Log.i(TAG, "CTS ANGLE Test :: GLES GL_VENDOR   : " + GLES20.glGetString(GLES20.GL_VENDOR));
    112         Log.i(TAG, "CTS ANGLE Test :: GLES GL_VERSION  : " + GLES20.glGetString(GLES20.GL_VERSION));
    113         Log.i(TAG, "CTS ANGLE Test :: GLES GL_RENDERER : " + GLES20.glGetString(GLES20.GL_RENDERER));
    114         mRenderer = GLES20.glGetString(GLES20.GL_RENDERER);
    115     }
    116 
    117     @Override
    118     public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}
    119 
    120     @Override
    121     public void surfaceDestroyed(SurfaceHolder holder) {}
    122 
    123     @Override
    124     public void surfaceRedrawNeeded(SurfaceHolder holder) {}
    125 
    126     public String getRenderer() {
    127         return mRenderer;
    128     }
    129 }
    130