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Diffstat (limited to 'WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java')
-rw-r--r--WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java438
1 files changed, 0 insertions, 438 deletions
diff --git a/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java b/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java
deleted file mode 100644
index 8a0505185..000000000
--- a/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * Copyright (C) 2013 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.photos.views;
-
-import android.content.Context;
-import android.graphics.SurfaceTexture;
-import android.opengl.GLSurfaceView.Renderer;
-import android.opengl.GLUtils;
-import android.util.Log;
-import android.view.TextureView;
-import android.view.TextureView.SurfaceTextureListener;
-
-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.GL10;
-
-/**
- * A TextureView that supports blocking rendering for synchronous drawing
- */
-public class BlockingGLTextureView extends TextureView
- implements SurfaceTextureListener {
-
- private RenderThread mRenderThread;
-
- public BlockingGLTextureView(Context context) {
- super(context);
- setSurfaceTextureListener(this);
- }
-
- public void setRenderer(Renderer renderer) {
- if (mRenderThread != null) {
- throw new IllegalArgumentException("Renderer already set");
- }
- mRenderThread = new RenderThread(renderer);
- }
-
- public void render() {
- mRenderThread.render();
- }
-
- public void destroy() {
- if (mRenderThread != null) {
- mRenderThread.finish();
- mRenderThread = null;
- }
- }
-
- @Override
- public void onSurfaceTextureAvailable(SurfaceTexture surface, int width,
- int height) {
- mRenderThread.setSurface(surface);
- mRenderThread.setSize(width, height);
- }
-
- @Override
- public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width,
- int height) {
- mRenderThread.setSize(width, height);
- }
-
- @Override
- public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
- if (mRenderThread != null) {
- mRenderThread.setSurface(null);
- }
- return false;
- }
-
- @Override
- public void onSurfaceTextureUpdated(SurfaceTexture surface) {
- }
-
- @Override
- protected void finalize() throws Throwable {
- try {
- destroy();
- } catch (Throwable t) {
- // Ignore
- }
- super.finalize();
- }
-
- /**
- * An EGL helper class.
- */
-
- private static class EglHelper {
- private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
- private static final int EGL_OPENGL_ES2_BIT = 4;
-
- EGL10 mEgl;
- EGLDisplay mEglDisplay;
- EGLSurface mEglSurface;
- EGLConfig mEglConfig;
- EGLContext mEglContext;
-
- 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
- };
- }
-
- EGLContext createContext(EGL10 egl, EGLDisplay eglDisplay, EGLConfig eglConfig) {
- int[] attribList = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE };
- return egl.eglCreateContext(eglDisplay, eglConfig, EGL10.EGL_NO_CONTEXT, attribList);
- }
-
- /**
- * Initialize EGL for a given configuration spec.
- */
- public void start() {
- /*
- * Get an EGL instance
- */
- mEgl = (EGL10) EGLContext.getEGL();
-
- /*
- * Get to the default display.
- */
- mEglDisplay = mEgl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
-
- if (mEglDisplay == EGL10.EGL_NO_DISPLAY) {
- throw new RuntimeException("eglGetDisplay failed");
- }
-
- /*
- * We can now initialize EGL for that display
- */
- int[] version = new int[2];
- if (!mEgl.eglInitialize(mEglDisplay, version)) {
- throw new RuntimeException("eglInitialize failed");
- }
- mEglConfig = chooseEglConfig();
-
- /*
- * Create an EGL context. We want to do this as rarely as we can, because an
- * EGL context is a somewhat heavy object.
- */
- mEglContext = createContext(mEgl, mEglDisplay, mEglConfig);
-
- if (mEglContext == null || mEglContext == EGL10.EGL_NO_CONTEXT) {
- mEglContext = null;
- throwEglException("createContext");
- }
-
- mEglSurface = null;
- }
-
- /**
- * Create an egl surface for the current SurfaceTexture surface. If a surface
- * already exists, destroy it before creating the new surface.
- *
- * @return true if the surface was created successfully.
- */
- public boolean createSurface(SurfaceTexture surface) {
- /*
- * Check preconditions.
- */
- if (mEgl == null) {
- throw new RuntimeException("egl not initialized");
- }
- if (mEglDisplay == null) {
- throw new RuntimeException("eglDisplay not initialized");
- }
- if (mEglConfig == null) {
- throw new RuntimeException("mEglConfig not initialized");
- }
-
- /*
- * The window size has changed, so we need to create a new
- * surface.
- */
- destroySurfaceImp();
-
- /*
- * Create an EGL surface we can render into.
- */
- if (surface != null) {
- mEglSurface = mEgl.eglCreateWindowSurface(mEglDisplay, mEglConfig, surface, null);
- } else {
- mEglSurface = null;
- }
-
- if (mEglSurface == null || mEglSurface == EGL10.EGL_NO_SURFACE) {
- int error = mEgl.eglGetError();
- if (error == EGL10.EGL_BAD_NATIVE_WINDOW) {
- Log.e("EglHelper", "createWindowSurface returned EGL_BAD_NATIVE_WINDOW.");
- }
- return false;
- }
-
- /*
- * Before we can issue GL commands, we need to make sure
- * the context is current and bound to a surface.
- */
- if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
- /*
- * Could not make the context current, probably because the underlying
- * SurfaceView surface has been destroyed.
- */
- logEglErrorAsWarning("EGLHelper", "eglMakeCurrent", mEgl.eglGetError());
- return false;
- }
-
- return true;
- }
-
- /**
- * Create a GL object for the current EGL context.
- */
- public GL10 createGL() {
- return (GL10) mEglContext.getGL();
- }
-
- /**
- * Display the current render surface.
- * @return the EGL error code from eglSwapBuffers.
- */
- public int swap() {
- if (!mEgl.eglSwapBuffers(mEglDisplay, mEglSurface)) {
- return mEgl.eglGetError();
- }
- return EGL10.EGL_SUCCESS;
- }
-
- public void destroySurface() {
- destroySurfaceImp();
- }
-
- private void destroySurfaceImp() {
- if (mEglSurface != null && mEglSurface != EGL10.EGL_NO_SURFACE) {
- mEgl.eglMakeCurrent(mEglDisplay, EGL10.EGL_NO_SURFACE,
- EGL10.EGL_NO_SURFACE,
- EGL10.EGL_NO_CONTEXT);
- mEgl.eglDestroySurface(mEglDisplay, mEglSurface);
- mEglSurface = null;
- }
- }
-
- public void finish() {
- if (mEglContext != null) {
- mEgl.eglDestroyContext(mEglDisplay, mEglContext);
- mEglContext = null;
- }
- if (mEglDisplay != null) {
- mEgl.eglTerminate(mEglDisplay);
- mEglDisplay = null;
- }
- }
-
- private void throwEglException(String function) {
- throwEglException(function, mEgl.eglGetError());
- }
-
- public static void throwEglException(String function, int error) {
- String message = formatEglError(function, error);
- throw new RuntimeException(message);
- }
-
- public static void logEglErrorAsWarning(String tag, String function, int error) {
- Log.w(tag, formatEglError(function, error));
- }
-
- public static String formatEglError(String function, int error) {
- return function + " failed: " + error;
- }
-
- }
-
- private static class RenderThread extends Thread {
- private static final int INVALID = -1;
- private static final int RENDER = 1;
- private static final int CHANGE_SURFACE = 2;
- private static final int RESIZE_SURFACE = 3;
- private static final int FINISH = 4;
-
- private EglHelper mEglHelper = new EglHelper();
-
- private Object mLock = new Object();
- private int mExecMsgId = INVALID;
- private SurfaceTexture mSurface;
- private Renderer mRenderer;
- private int mWidth, mHeight;
-
- private boolean mFinished = false;
- private GL10 mGL;
-
- public RenderThread(Renderer renderer) {
- super("RenderThread");
- mRenderer = renderer;
- start();
- }
-
- private void checkRenderer() {
- if (mRenderer == null) {
- throw new IllegalArgumentException("Renderer is null!");
- }
- }
-
- private void checkSurface() {
- if (mSurface == null) {
- throw new IllegalArgumentException("surface is null!");
- }
- }
-
- public void setSurface(SurfaceTexture surface) {
- // If the surface is null we're being torn down, don't need a
- // renderer then
- if (surface != null) {
- checkRenderer();
- }
- mSurface = surface;
- exec(CHANGE_SURFACE);
- }
-
- public void setSize(int width, int height) {
- checkRenderer();
- checkSurface();
- mWidth = width;
- mHeight = height;
- exec(RESIZE_SURFACE);
- }
-
- public void render() {
- checkRenderer();
- if (mSurface != null) {
- exec(RENDER);
- mSurface.updateTexImage();
- }
- }
-
- public void finish() {
- mSurface = null;
- exec(FINISH);
- try {
- join();
- } catch (InterruptedException e) {
- // Ignore
- }
- }
-
- private void exec(int msgid) {
- synchronized (mLock) {
- if (mExecMsgId != INVALID) {
- throw new IllegalArgumentException(
- "Message already set - multithreaded access?");
- }
- mExecMsgId = msgid;
- mLock.notify();
- try {
- mLock.wait();
- } catch (InterruptedException e) {
- // Ignore
- }
- }
- }
-
- private void handleMessageLocked(int what) {
- switch (what) {
- case CHANGE_SURFACE:
- if (mEglHelper.createSurface(mSurface)) {
- mGL = mEglHelper.createGL();
- mRenderer.onSurfaceCreated(mGL, mEglHelper.mEglConfig);
- }
- break;
- case RESIZE_SURFACE:
- mRenderer.onSurfaceChanged(mGL, mWidth, mHeight);
- break;
- case RENDER:
- mRenderer.onDrawFrame(mGL);
- mEglHelper.swap();
- break;
- case FINISH:
- mEglHelper.destroySurface();
- mEglHelper.finish();
- mFinished = true;
- break;
- }
- }
-
- @Override
- public void run() {
- synchronized (mLock) {
- mEglHelper.start();
- while (!mFinished) {
- while (mExecMsgId == INVALID) {
- try {
- mLock.wait();
- } catch (InterruptedException e) {
- // Ignore
- }
- }
- handleMessageLocked(mExecMsgId);
- mExecMsgId = INVALID;
- mLock.notify();
- }
- mExecMsgId = FINISH;
- }
- }
- }
-}