| /* |
| * Copyright (C) 2011 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 android.animation.ObjectAnimator; |
| import android.animation.ValueAnimator; |
| import android.app.Activity; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.SurfaceTexture; |
| import android.opengl.GLUtils; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.TextureView; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.FrameLayout; |
| |
| 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; |
| import javax.microedition.khronos.opengles.GL; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.FloatBuffer; |
| |
| import static android.opengl.GLES20.*; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class GLTextureViewActivity extends Activity implements TextureView.SurfaceTextureListener { |
| private RenderThread mRenderThread; |
| private TextureView mTextureView; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| mTextureView = new TextureView(this); |
| mTextureView.setSurfaceTextureListener(this); |
| mTextureView.setOnClickListener(new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| Bitmap b = mTextureView.getBitmap(800, 800); |
| BufferedOutputStream out = null; |
| try { |
| File dump = new File(Environment.getExternalStorageDirectory(), "out.png"); |
| out = new BufferedOutputStream(new FileOutputStream(dump)); |
| b.compress(Bitmap.CompressFormat.PNG, 100, out); |
| } catch (FileNotFoundException e) { |
| e.printStackTrace(); |
| } finally { |
| if (out != null) try { |
| out.close(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| }); |
| |
| setContentView(mTextureView, new FrameLayout.LayoutParams( |
| ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT, |
| Gravity.CENTER)); |
| } |
| |
| @Override |
| public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { |
| mRenderThread = new RenderThread(getResources(), surface); |
| mRenderThread.start(); |
| |
| mTextureView.setCameraDistance(5000); |
| |
| ObjectAnimator animator = ObjectAnimator.ofFloat(mTextureView, "rotationY", 0.0f, 360.0f); |
| animator.setRepeatMode(ObjectAnimator.REVERSE); |
| animator.setRepeatCount(ObjectAnimator.INFINITE); |
| animator.setDuration(4000); |
| animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| mTextureView.invalidate(); |
| } |
| }); |
| animator.start(); |
| } |
| |
| @Override |
| public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { |
| } |
| |
| @Override |
| public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { |
| mRenderThread.finish(); |
| try { |
| mRenderThread.join(); |
| } catch (InterruptedException e) { |
| Log.e(RenderThread.LOG_TAG, "Could not wait for render thread"); |
| } |
| return true; |
| } |
| |
| @Override |
| public void onSurfaceTextureUpdated(SurfaceTexture surface) { |
| } |
| |
| private static class RenderThread extends Thread { |
| private static final String LOG_TAG = "GLTextureView"; |
| |
| static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; |
| static final int EGL_OPENGL_ES2_BIT = 4; |
| |
| private volatile boolean mFinished; |
| |
| private final Resources mResources; |
| private final SurfaceTexture mSurface; |
| |
| private EGL10 mEgl; |
| private EGLDisplay mEglDisplay; |
| private EGLConfig mEglConfig; |
| private EGLContext mEglContext; |
| private EGLSurface mEglSurface; |
| private GL mGL; |
| |
| RenderThread(Resources resources, SurfaceTexture surface) { |
| mResources = resources; |
| mSurface = surface; |
| } |
| |
| private static final String sSimpleVS = |
| "attribute vec4 position;\n" + |
| "attribute vec2 texCoords;\n" + |
| "varying vec2 outTexCoords;\n" + |
| "\nvoid main(void) {\n" + |
| " outTexCoords = texCoords;\n" + |
| " gl_Position = position;\n" + |
| "}\n\n"; |
| private static final String sSimpleFS = |
| "precision mediump float;\n\n" + |
| "varying vec2 outTexCoords;\n" + |
| "uniform sampler2D texture;\n" + |
| "\nvoid main(void) {\n" + |
| " gl_FragColor = texture2D(texture, outTexCoords);\n" + |
| "}\n\n"; |
| |
| private static final int FLOAT_SIZE_BYTES = 4; |
| private static final int TRIANGLE_VERTICES_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES; |
| private static final int TRIANGLE_VERTICES_DATA_POS_OFFSET = 0; |
| private static final int TRIANGLE_VERTICES_DATA_UV_OFFSET = 3; |
| private final float[] mTriangleVerticesData = { |
| // X, Y, Z, U, V |
| -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, |
| 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, |
| -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, |
| 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, |
| }; |
| |
| @Override |
| public void run() { |
| initGL(); |
| |
| FloatBuffer triangleVertices = ByteBuffer.allocateDirect(mTriangleVerticesData.length |
| * FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer(); |
| triangleVertices.put(mTriangleVerticesData).position(0); |
| |
| int texture = loadTexture(R.drawable.large_photo); |
| int program = buildProgram(sSimpleVS, sSimpleFS); |
| |
| int attribPosition = glGetAttribLocation(program, "position"); |
| checkGlError(); |
| |
| int attribTexCoords = glGetAttribLocation(program, "texCoords"); |
| checkGlError(); |
| |
| int uniformTexture = glGetUniformLocation(program, "texture"); |
| checkGlError(); |
| |
| glBindTexture(GL_TEXTURE_2D, texture); |
| checkGlError(); |
| |
| glUseProgram(program); |
| checkGlError(); |
| |
| glEnableVertexAttribArray(attribPosition); |
| checkGlError(); |
| |
| glEnableVertexAttribArray(attribTexCoords); |
| checkGlError(); |
| |
| glUniform1i(uniformTexture, 0); |
| checkGlError(); |
| |
| // drawQuad |
| triangleVertices.position(TRIANGLE_VERTICES_DATA_POS_OFFSET); |
| glVertexAttribPointer(attribPosition, 3, GL_FLOAT, false, |
| TRIANGLE_VERTICES_DATA_STRIDE_BYTES, triangleVertices); |
| checkGlError(); |
| |
| triangleVertices.position(TRIANGLE_VERTICES_DATA_UV_OFFSET); |
| glVertexAttribPointer(attribTexCoords, 3, GL_FLOAT, false, |
| TRIANGLE_VERTICES_DATA_STRIDE_BYTES, triangleVertices); |
| checkGlError(); |
| |
| glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
| checkGlError(); |
| |
| while (!mFinished) { |
| checkCurrent(); |
| |
| glClear(GL_COLOR_BUFFER_BIT); |
| checkGlError(); |
| |
| glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); |
| checkGlError(); |
| |
| if (!mEgl.eglSwapBuffers(mEglDisplay, mEglSurface)) { |
| throw new RuntimeException("Cannot swap buffers"); |
| } |
| checkEglError(); |
| |
| try { |
| Thread.sleep(2000); |
| } catch (InterruptedException e) { |
| // Ignore |
| } |
| } |
| |
| finishGL(); |
| } |
| |
| private int loadTexture(int resource) { |
| int[] textures = new int[1]; |
| |
| glActiveTexture(GL_TEXTURE0); |
| glGenTextures(1, textures, 0); |
| checkGlError(); |
| |
| int texture = textures[0]; |
| glBindTexture(GL_TEXTURE_2D, texture); |
| checkGlError(); |
| |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| |
| Bitmap bitmap = BitmapFactory.decodeResource(mResources, resource); |
| |
| GLUtils.texImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bitmap, GL_UNSIGNED_BYTE, 0); |
| checkGlError(); |
| |
| bitmap.recycle(); |
| |
| return texture; |
| } |
| |
| private static int buildProgram(String vertex, String fragment) { |
| int vertexShader = buildShader(vertex, GL_VERTEX_SHADER); |
| if (vertexShader == 0) return 0; |
| |
| int fragmentShader = buildShader(fragment, GL_FRAGMENT_SHADER); |
| if (fragmentShader == 0) return 0; |
| |
| int program = glCreateProgram(); |
| glAttachShader(program, vertexShader); |
| checkGlError(); |
| |
| glAttachShader(program, fragmentShader); |
| checkGlError(); |
| |
| glLinkProgram(program); |
| checkGlError(); |
| |
| int[] status = new int[1]; |
| glGetProgramiv(program, GL_LINK_STATUS, status, 0); |
| if (status[0] != GL_TRUE) { |
| String error = glGetProgramInfoLog(program); |
| Log.d(LOG_TAG, "Error while linking program:\n" + error); |
| glDeleteShader(vertexShader); |
| glDeleteShader(fragmentShader); |
| glDeleteProgram(program); |
| return 0; |
| } |
| |
| return program; |
| } |
| |
| private static int buildShader(String source, int type) { |
| int shader = glCreateShader(type); |
| |
| glShaderSource(shader, source); |
| checkGlError(); |
| |
| glCompileShader(shader); |
| checkGlError(); |
| |
| int[] status = new int[1]; |
| glGetShaderiv(shader, GL_COMPILE_STATUS, status, 0); |
| if (status[0] != GL_TRUE) { |
| String error = glGetShaderInfoLog(shader); |
| Log.d(LOG_TAG, "Error while compiling shader:\n" + error); |
| glDeleteShader(shader); |
| return 0; |
| } |
| |
| return shader; |
| } |
| |
| private void checkEglError() { |
| int error = mEgl.eglGetError(); |
| if (error != EGL10.EGL_SUCCESS) { |
| Log.w(LOG_TAG, "EGL error = 0x" + Integer.toHexString(error)); |
| } |
| } |
| |
| private static void checkGlError() { |
| int error = glGetError(); |
| if (error != GL_NO_ERROR) { |
| Log.w(LOG_TAG, "GL error = 0x" + Integer.toHexString(error)); |
| } |
| } |
| |
| private void finishGL() { |
| mEgl.eglDestroyContext(mEglDisplay, mEglContext); |
| mEgl.eglDestroySurface(mEglDisplay, mEglSurface); |
| } |
| |
| private void checkCurrent() { |
| if (!mEglContext.equals(mEgl.eglGetCurrentContext()) || |
| !mEglSurface.equals(mEgl.eglGetCurrentSurface(EGL10.EGL_DRAW))) { |
| if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) { |
| throw new RuntimeException("eglMakeCurrent failed " |
| + GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| } |
| } |
| |
| 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, mSurface, 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())); |
| } |
| |
| mGL = mEglContext.getGL(); |
| } |
| |
| |
| 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 static 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 |
| }; |
| } |
| |
| void finish() { |
| mFinished = true; |
| } |
| } |
| } |