| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.test.hwui; |
| |
| import static android.opengl.GLES20.GL_COLOR_BUFFER_BIT; |
| import static android.opengl.GLES20.glClear; |
| import static android.opengl.GLES20.glClearColor; |
| |
| import android.app.Activity; |
| import android.graphics.Color; |
| import android.graphics.SurfaceTexture; |
| import android.opengl.GLUtils; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.view.TextureView; |
| import android.view.TextureView.SurfaceTextureListener; |
| import android.view.View; |
| import android.view.ViewGroup.LayoutParams; |
| import android.widget.FrameLayout; |
| import android.widget.TextView; |
| |
| import javax.microedition.khronos.egl.EGL10; |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.egl.EGLContext; |
| import javax.microedition.khronos.egl.EGLDisplay; |
| import javax.microedition.khronos.egl.EGLSurface; |
| |
| public class SingleFrameTextureViewTestActivity extends Activity implements SurfaceTextureListener { |
| private static final String LOG_TAG = "SingleFrameTest"; |
| |
| private View mPreview; |
| private TextureView mTextureView; |
| private Thread mGLThread; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| TextView preview = new TextView(this); |
| preview.setText("This is a preview"); |
| preview.setBackgroundColor(Color.WHITE); |
| mPreview = preview; |
| mTextureView = new TextureView(this); |
| mTextureView.setSurfaceTextureListener(this); |
| |
| FrameLayout content = new FrameLayout(this); |
| content.addView(mTextureView, |
| LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); |
| content.addView(mPreview, |
| LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); |
| |
| setContentView(content); |
| } |
| |
| private void stopGlThread() { |
| if (mGLThread != null) { |
| try { |
| mGLThread.join(); |
| mGLThread = null; |
| } catch (InterruptedException e) { } |
| } |
| } |
| |
| @Override |
| public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { |
| Log.d(LOG_TAG, "onSurfaceAvailable"); |
| mGLThread = new Thread() { |
| static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; |
| static final int EGL_OPENGL_ES2_BIT = 4; |
| |
| private EGL10 mEgl; |
| private EGLDisplay mEglDisplay; |
| private EGLConfig mEglConfig; |
| private EGLContext mEglContext; |
| private EGLSurface mEglSurface; |
| |
| @Override |
| public void run() { |
| initGL(); |
| try { |
| Thread.sleep(500); |
| } catch (InterruptedException e) {} |
| |
| for (int i = 0; i < 2; i++) { |
| if (i == 0) { |
| glClearColor(0.0f, 0.0f, 1.0f, 1.0f); |
| } else { |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| } |
| glClear(GL_COLOR_BUFFER_BIT); |
| Log.d(LOG_TAG, "eglSwapBuffers"); |
| if (!mEgl.eglSwapBuffers(mEglDisplay, mEglSurface)) { |
| throw new RuntimeException("Cannot swap buffers"); |
| } |
| try { |
| Thread.sleep(50); |
| } catch (InterruptedException e) {} |
| } |
| |
| try { |
| Thread.sleep(500); |
| } catch (InterruptedException e) {} |
| |
| finishGL(); |
| } |
| |
| private void finishGL() { |
| mEgl.eglDestroyContext(mEglDisplay, mEglContext); |
| mEgl.eglDestroySurface(mEglDisplay, mEglSurface); |
| } |
| |
| private void initGL() { |
| mEgl = (EGL10) EGLContext.getEGL(); |
| |
| mEglDisplay = mEgl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY); |
| if (mEglDisplay == EGL10.EGL_NO_DISPLAY) { |
| throw new RuntimeException("eglGetDisplay failed " |
| + GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| int[] version = new int[2]; |
| if (!mEgl.eglInitialize(mEglDisplay, version)) { |
| throw new RuntimeException("eglInitialize failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| mEglConfig = chooseEglConfig(); |
| if (mEglConfig == null) { |
| throw new RuntimeException("eglConfig not initialized"); |
| } |
| |
| mEglContext = createContext(mEgl, mEglDisplay, mEglConfig); |
| |
| mEglSurface = mEgl.eglCreateWindowSurface(mEglDisplay, mEglConfig, surface, null); |
| |
| if (mEglSurface == null || mEglSurface == EGL10.EGL_NO_SURFACE) { |
| int error = mEgl.eglGetError(); |
| if (error == EGL10.EGL_BAD_NATIVE_WINDOW) { |
| Log.e(LOG_TAG, "createWindowSurface returned EGL_BAD_NATIVE_WINDOW."); |
| return; |
| } |
| throw new RuntimeException("createWindowSurface failed " |
| + GLUtils.getEGLErrorString(error)); |
| } |
| |
| if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) { |
| throw new RuntimeException("eglMakeCurrent failed " |
| + GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| } |
| |
| |
| EGLContext createContext(EGL10 egl, EGLDisplay eglDisplay, EGLConfig eglConfig) { |
| int[] attrib_list = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE }; |
| return egl.eglCreateContext(eglDisplay, eglConfig, EGL10.EGL_NO_CONTEXT, attrib_list); |
| } |
| |
| private EGLConfig chooseEglConfig() { |
| int[] configsCount = new int[1]; |
| EGLConfig[] configs = new EGLConfig[1]; |
| int[] configSpec = getConfig(); |
| if (!mEgl.eglChooseConfig(mEglDisplay, configSpec, configs, 1, configsCount)) { |
| throw new IllegalArgumentException("eglChooseConfig failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } else if (configsCount[0] > 0) { |
| return configs[0]; |
| } |
| return null; |
| } |
| |
| private int[] getConfig() { |
| return new int[] { |
| EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL10.EGL_RED_SIZE, 8, |
| EGL10.EGL_GREEN_SIZE, 8, |
| EGL10.EGL_BLUE_SIZE, 8, |
| EGL10.EGL_ALPHA_SIZE, 8, |
| EGL10.EGL_DEPTH_SIZE, 0, |
| EGL10.EGL_STENCIL_SIZE, 0, |
| EGL10.EGL_NONE |
| }; |
| } |
| }; |
| mGLThread.start(); |
| } |
| |
| @Override |
| public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { |
| Log.d(LOG_TAG, "onSurfaceTextureSizeChanged"); |
| } |
| |
| @Override |
| public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { |
| Log.d(LOG_TAG, "onSurfaceTextureDestroyed"); |
| stopGlThread(); |
| return true; |
| } |
| |
| @Override |
| public void onSurfaceTextureUpdated(SurfaceTexture surface) { |
| Log.d(LOG_TAG, "onSurfaceTextureUpdated"); |
| mPreview.setVisibility(View.GONE); |
| } |
| } |