Revert of Made EglBase an abstract class and cleaned up.

talk/app/webrtc/java/android/org/webrtc/EglBase10.java

Index: talk/app/webrtc/java/android/org/webrtc/EglBase10.java
diff --git a/talk/app/webrtc/java/android/org/webrtc/EglBase10.java b/talk/app/webrtc/java/android/org/webrtc/EglBase10.java
deleted file mode 100644
index f2aa9857faf09e223f40c610ab816d3f8969f84c..0000000000000000000000000000000000000000
--- a/talk/app/webrtc/java/android/org/webrtc/EglBase10.java
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * libjingle
- * Copyright 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.webrtc;
-
-import android.graphics.Canvas;
-import android.graphics.SurfaceTexture;
-import android.graphics.Rect;
-import android.view.Surface;
-import android.view.SurfaceHolder;
-
-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;
-
-/**
- * Holds EGL state and utility methods for handling an egl 1.0 EGLContext, an EGLDisplay,
- * and an EGLSurface.
- */
-final class EglBase10 extends EglBase {
-  // This constant is taken from EGL14.EGL_CONTEXT_CLIENT_VERSION.
-  private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
-
-  private final EGL10 egl;
-  private EGLContext eglContext;
-  private EGLConfig eglConfig;
-  private EGLDisplay eglDisplay;
-  private EGLSurface eglSurface = EGL10.EGL_NO_SURFACE;
-
-  // EGL wrapper for an actual EGLContext.
-  public static class Context extends EglBase.Context {
-    private final EGLContext eglContext;
-
-    public Context(EGLContext eglContext) {
-      this.eglContext = eglContext;
-    }
-  }
-
-  // Create a new context with the specified config type, sharing data with sharedContext.
-  EglBase10(Context sharedContext, int[] configAttributes) {
-    this.egl = (EGL10) EGLContext.getEGL();
-    eglDisplay = getEglDisplay();
-    eglConfig = getEglConfig(eglDisplay, configAttributes);
-    eglContext = createEglContext(sharedContext, eglDisplay, eglConfig);
-  }
-
-  @Override
-  public void createSurface(Surface surface) {
-    /**
-     * We have to wrap Surface in a SurfaceHolder because for some reason eglCreateWindowSurface
-     * couldn't actually take a Surface object until API 17. Older versions fortunately just call
-     * SurfaceHolder.getSurface(), so we'll do that. No other methods are relevant.
-     */
-    class FakeSurfaceHolder implements SurfaceHolder {
-      private final Surface surface;
-
-      FakeSurfaceHolder(Surface surface) {
-        this.surface = surface;
-      }
-
-      @Override
-      public void addCallback(Callback callback) {}
-
-      @Override
-      public void removeCallback(Callback callback) {}
-
-      @Override
-      public boolean isCreating() {
-        return false;
-      }
-
-      @Deprecated
-      @Override
-      public void setType(int i) {}
-
-      @Override
-      public void setFixedSize(int i, int i2) {}
-
-      @Override
-      public void setSizeFromLayout() {}
-
-      @Override
-      public void setFormat(int i) {}
-
-      @Override
-      public void setKeepScreenOn(boolean b) {}
-
-      @Override
-      public Canvas lockCanvas() {
-        return null;
-      }
-
-      @Override
-      public Canvas lockCanvas(Rect rect) {
-        return null;
-      }
-
-      @Override
-      public void unlockCanvasAndPost(Canvas canvas) {}
-
-      @Override
-      public Rect getSurfaceFrame() {
-        return null;
-      }
-
-      @Override
-      public Surface getSurface() {
-        return surface;
-      }
-    }
-
-    createSurfaceInternal(new FakeSurfaceHolder(surface));
-  }
-
-  // Create EGLSurface from the Android SurfaceTexture.
-  @Override
-  public void createSurface(SurfaceTexture surfaceTexture) {
-    createSurfaceInternal(surfaceTexture);
-  }
-
-  // Create EGLSurface from either a SurfaceHolder or a SurfaceTexture.
-  private void createSurfaceInternal(Object nativeWindow) {
-    if (!(nativeWindow instanceof SurfaceHolder) && !(nativeWindow instanceof SurfaceTexture)) {
-      throw new IllegalStateException("Input must be either a SurfaceHolder or SurfaceTexture");
-    }
-    checkIsNotReleased();
-    if (eglSurface != EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("Already has an EGLSurface");
-    }
-    int[] surfaceAttribs = {EGL10.EGL_NONE};
-    eglSurface = egl.eglCreateWindowSurface(eglDisplay, eglConfig, nativeWindow, surfaceAttribs);
-    if (eglSurface == EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("Failed to create window surface");
-    }
-  }
-
-  // Create dummy 1x1 pixel buffer surface so the context can be made current.
-  @Override
-  public void createDummyPbufferSurface() {
-    createPbufferSurface(1, 1);
-  }
-
-  @Override
-  public void createPbufferSurface(int width, int height) {
-    checkIsNotReleased();
-    if (eglSurface != EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("Already has an EGLSurface");
-    }
-    int[] surfaceAttribs = {EGL10.EGL_WIDTH, width, EGL10.EGL_HEIGHT, height, EGL10.EGL_NONE};
-    eglSurface = egl.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs);
-    if (eglSurface == EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("Failed to create pixel buffer surface");
-    }
-  }
-
-  @Override
-  public org.webrtc.EglBase.Context getEglBaseContext() {
-    return new EglBase10.Context(eglContext);
-  }
-
-  @Override
-  public boolean hasSurface() {
-    return eglSurface != EGL10.EGL_NO_SURFACE;
-  }
-
-  @Override
-  public int surfaceWidth() {
-    final int widthArray[] = new int[1];
-    egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_WIDTH, widthArray);
-    return widthArray[0];
-  }
-
-  @Override
-  public int surfaceHeight() {
-    final int heightArray[] = new int[1];
-    egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_HEIGHT, heightArray);
-    return heightArray[0];
-  }
-
-  @Override
-  public void releaseSurface() {
-    if (eglSurface != EGL10.EGL_NO_SURFACE) {
-      egl.eglDestroySurface(eglDisplay, eglSurface);
-      eglSurface = EGL10.EGL_NO_SURFACE;
-    }
-  }
-
-  private void checkIsNotReleased() {
-    if (eglDisplay == EGL10.EGL_NO_DISPLAY || eglContext == EGL10.EGL_NO_CONTEXT
-        || eglConfig == null) {
-      throw new RuntimeException("This object has been released");
-    }
-  }
-
-  @Override
-  public void release() {
-    checkIsNotReleased();
-    releaseSurface();
-    detachCurrent();
-    egl.eglDestroyContext(eglDisplay, eglContext);
-    egl.eglTerminate(eglDisplay);
-    eglContext = EGL10.EGL_NO_CONTEXT;
-    eglDisplay = EGL10.EGL_NO_DISPLAY;
-    eglConfig = null;
-  }
-
-  @Override
-  public void makeCurrent() {
-    checkIsNotReleased();
-    if (eglSurface == EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("No EGLSurface - can't make current");
-    }
-    if (!egl.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
-      throw new RuntimeException("eglMakeCurrent failed");
-    }
-  }
-
-  // Detach the current EGL context, so that it can be made current on another thread.
-  @Override
-  public void detachCurrent() {
-    if (!egl.eglMakeCurrent(
-        eglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT)) {
-      throw new RuntimeException("eglMakeCurrent failed");
-    }
-  }
-
-  @Override
-  public void swapBuffers() {
-    checkIsNotReleased();
-    if (eglSurface == EGL10.EGL_NO_SURFACE) {
-      throw new RuntimeException("No EGLSurface - can't swap buffers");
-    }
-    egl.eglSwapBuffers(eglDisplay, eglSurface);
-  }
-
-  // Return an EGLDisplay, or die trying.
-  private EGLDisplay getEglDisplay() {
-    EGLDisplay eglDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
-    if (eglDisplay == EGL10.EGL_NO_DISPLAY) {
-      throw new RuntimeException("Unable to get EGL10 display");
-    }
-    int[] version = new int[2];
-    if (!egl.eglInitialize(eglDisplay, version)) {
-      throw new RuntimeException("Unable to initialize EGL10");
-    }
-    return eglDisplay;
-  }
-
-  // Return an EGLConfig, or die trying.
-  private EGLConfig getEglConfig(EGLDisplay eglDisplay, int[] configAttributes) {
-    EGLConfig[] configs = new EGLConfig[1];
-    int[] numConfigs = new int[1];
-    if (!egl.eglChooseConfig(
-        eglDisplay, configAttributes, configs, configs.length, numConfigs)) {
-      throw new RuntimeException("Unable to find any matching EGL config");
-    }
-    return configs[0];
-  }
-
-  // Return an EGLConfig, or die trying.
-  private EGLContext createEglContext(
-      Context sharedContext, EGLDisplay eglDisplay, EGLConfig eglConfig) {
-    int[] contextAttributes = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE};
-    EGLContext rootContext =
-        sharedContext == null ? EGL10.EGL_NO_CONTEXT : sharedContext.eglContext;
-    EGLContext eglContext =
-        egl.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes);
-    if (eglContext == EGL10.EGL_NO_CONTEXT) {
-      throw new RuntimeException("Failed to create EGL context");
-    }
-    return eglContext;
-  }
-}