Android Open Source - FPlayAndroid Open G L Visualizer Jni






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The source code is released under:

Copyright (c) 2013-2014, Carlos Rafael Gimenes das Neves All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the followin...

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Java Source Code

//
// FPlayAndroid is distributed under the FreeBSD License
////  w  ww  .  j  a v a2s.com
// Copyright (c) 2013-2014, Carlos Rafael Gimenes das Neves
// All rights reserved.
//
// 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.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
//
// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.
//
// https://github.com/carlosrafaelgn/FPlayAndroid
//
package br.com.carlosrafaelgn.fplay.visualizer;

import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.PixelFormat;
import android.graphics.Point;
import android.net.Uri;
import android.opengl.GLSurfaceView;
import android.os.Build;
import android.os.Message;
import android.view.ContextMenu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.ViewDebug.ExportedProperty;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;

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;

import br.com.carlosrafaelgn.fplay.R;
import br.com.carlosrafaelgn.fplay.activity.MainHandler;
import br.com.carlosrafaelgn.fplay.list.Song;
import br.com.carlosrafaelgn.fplay.ui.UI;
import br.com.carlosrafaelgn.fplay.ui.drawable.TextIconDrawable;
import br.com.carlosrafaelgn.fplay.util.ArraySorter;
import br.com.carlosrafaelgn.fplay.util.SafeURLSpan;

public final class OpenGLVisualizerJni extends GLSurfaceView implements GLSurfaceView.Renderer, GLSurfaceView.EGLContextFactory, GLSurfaceView.EGLWindowSurfaceFactory, Visualizer, VisualizerView, MenuItem.OnMenuItemClickListener, MainHandler.Callback, DialogInterface.OnClickListener {
  private static final int MNU_COLOR = MNU_VISUALIZER + 1, MNU_SPEED0 = MNU_VISUALIZER + 2, MNU_SPEED1 = MNU_VISUALIZER + 3, MNU_SPEED2 = MNU_VISUALIZER + 4, MNU_CHOOSE_IMAGE = MNU_VISUALIZER + 5, MNU_ABOUT = MNU_VISUALIZER + 6;

  private static final int MSG_OPENGL_ERROR = 0x0700;
  private static final int MSG_CHOOSE_IMAGE = 0x0701;

  private static int GLVersion = -1;

  public static final String EXTRA_VISUALIZER_TYPE = "br.com.carlosrafaelgn.fplay.OpenGLVisualizerJni.EXTRA_VISUALIZER_TYPE";

  public static final int TYPE_SPECTRUM = 0;
  public static final int TYPE_LIQUID = 1;
  public static final int TYPE_SPIN = 2;
  public static final int TYPE_PARTICLE = 3;

  private final int type;
  private byte[] bfft;
  private volatile boolean supported, alerted, okToRender, imageChoosenAtLeastOnce;
  private volatile int error;
  private volatile Uri selectedUri;
  private boolean browsing;
  private int colorIndex, speed, viewWidth, viewHeight;
  private EGLConfig config;
  private Activity activity;
  
  public OpenGLVisualizerJni(Context context, Activity activity, boolean landscape, Intent extras) {
    super(context);
    final int t = extras.getIntExtra(EXTRA_VISUALIZER_TYPE, TYPE_SPECTRUM);
    type = ((t < TYPE_LIQUID || t > TYPE_PARTICLE) ? TYPE_SPECTRUM : t);
    bfft = new byte[2048];
    setClickable(true);
    setFocusable(false);
    colorIndex = 0;
    speed = ((type == TYPE_LIQUID || type == TYPE_PARTICLE) ? 0 : 2);
    this.activity = activity;

    //initialize these with default values to be used in
    if (landscape) {
      viewWidth = 1024;
      viewHeight = 512;
    } else {
      viewWidth = 512;
      viewHeight = 1024;
    }

    if (GLVersion != -1) {
      supported = (GLVersion >= 0x00020000);
      if (!supported)
        MainHandler.sendMessage(this, MSG_OPENGL_ERROR);
    }
    
    //http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.3_r1/android/opengl/GLSurfaceView.java
    //getHolder().setFormat(PixelFormat.RGB_565);
    //setEGLContextClientVersion(2);
    //setEGLConfigChooser(5, 6, 5, 0, 0, 0);
    setEGLContextFactory(this);
    setEGLWindowSurfaceFactory(this);
    setRenderer(this);
    setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
      setPreserveEGLContext();
  }

  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  private void setPreserveEGLContext() {
    setPreserveEGLContextOnPause(false);
  }

  @Override
  public EGLSurface createWindowSurface(EGL10 egl, EGLDisplay display, EGLConfig config, Object native_window) {
    try {
      EGLSurface s = egl.eglCreateWindowSurface(display, (this.config != null) ? this.config : config, native_window, null);
      return s;
    } catch (Throwable ex) {
      ex.printStackTrace();
    }
    return null;
  }
  
  @Override
  public void destroySurface(EGL10 egl, EGLDisplay display, EGLSurface surface) {
    if (egl != null && display != null && surface != null)
      egl.eglDestroySurface(display, surface);
  }
  
  @Override
  public EGLContext createContext(final EGL10 egl, final EGLDisplay display, EGLConfig config) {
    
    //https://www.khronos.org/registry/egl/sdk/docs/man/html/eglChooseConfig.xhtml
    //https://www.khronos.org/registry/egl/sdk/docs/man/html/eglCreateContext.xhtml
    
    egl.eglMakeCurrent(display, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
    this.config = null;
    //EGL_FALSE = 0
    //EGL_TRUE = 1
    //EGL_OPENGL_ES2_BIT = 4
    //EGL_CONTEXT_CLIENT_VERSION = 0x3098
    final EGLConfig[] configs = new EGLConfig[64], selectedConfigs = new EGLConfig[64];
    final int[] num_config = { 0 }, value = new int[1];
    final int[] none = { EGL10.EGL_NONE };
    final int[] v2 = { 0x3098, 2, EGL10.EGL_NONE };
    int selectedCount = 0;
    if (egl.eglGetConfigs(display, configs, 32, num_config) && num_config[0] > 0) {
      for (int i = 0; i < num_config[0]; i++) {
        egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_RENDERABLE_TYPE, value);
        if ((value[0] & 4) == 0) continue;
        egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_SURFACE_TYPE, value);
        if ((value[0] & EGL10.EGL_WINDOW_BIT) == 0) continue;
        //egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_COLOR_BUFFER_TYPE, value);
        //if (value[0] != EGL10.EGL_RGB_BUFFER) continue;
        egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_RED_SIZE, value);
        if (value[0] < 4) continue;
        egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_GREEN_SIZE, value);
        if (value[0] < 4) continue;
        egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_BLUE_SIZE, value);
        if (value[0] < 4) continue;
        selectedConfigs[selectedCount++] = configs[i];
      }
    }
    if (selectedCount == 0) {
      supported = false;
      MainHandler.sendMessage(this, MSG_OPENGL_ERROR);
      return egl.eglCreateContext(display, config, EGL10.EGL_NO_CONTEXT, none);
    }
    ArraySorter.sort(selectedConfigs, 0, selectedCount, new ArraySorter.Comparer<EGLConfig>() {
      @Override
      public int compare(EGLConfig a, EGLConfig b) {
        int x;
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_COLOR_BUFFER_TYPE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_COLOR_BUFFER_TYPE, value);
        //prefer rgb buffers
        if (x != value[0])
          return (x == EGL10.EGL_RGB_BUFFER) ? -1 : 1;
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_NATIVE_RENDERABLE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_NATIVE_RENDERABLE, value);
        //prefer native configs
        if (x != value[0])
          return (x != 0) ? -1 : 1;
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_SAMPLE_BUFFERS, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_SAMPLE_BUFFERS, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_SAMPLES, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_SAMPLES, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_BUFFER_SIZE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_BUFFER_SIZE, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_DEPTH_SIZE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_DEPTH_SIZE, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_STENCIL_SIZE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_STENCIL_SIZE, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_ALPHA_MASK_SIZE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_ALPHA_MASK_SIZE, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_ALPHA_SIZE, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_ALPHA_SIZE, value);
        //prefer smaller values
        if (x != value[0])
          return (x - value[0]);
        egl.eglGetConfigAttrib(display, a, EGL10.EGL_CONFIG_ID, value);
        x = value[0];
        egl.eglGetConfigAttrib(display, b, EGL10.EGL_CONFIG_ID, value);
        //prefer smaller values
        return (x - value[0]);
      }
    });
    //according to this:
    //http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.3_r1/android/opengl/GLSurfaceView.java#941
    //the native_window parameter in cretaeWindowSurface is this SurfaceHolder 
    final SurfaceHolder holder = getHolder();
    for (int i = 0; i < selectedCount; i++) {
      final int r, g, b;
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_BUFFER_SIZE, value);
      //System.out.print(i + " bs" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_SAMPLE_BUFFERS, value);
      //System.out.print(" sp" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_SAMPLES, value);
      //System.out.print(" s" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_DEPTH_SIZE, value);
      //System.out.print(" d" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_STENCIL_SIZE, value);
      //System.out.print(" st" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_ALPHA_SIZE, value);
      //System.out.print(" a" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_ALPHA_MASK_SIZE, value);
      //System.out.print(" am" + value[0]);
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_RED_SIZE, value);
      r = value[0];
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_GREEN_SIZE, value);
      g = value[0];
      egl.eglGetConfigAttrib(display, selectedConfigs[i], EGL10.EGL_BLUE_SIZE, value);
      b = value[0];
      //System.out.println(" rgb" + r + " " + g + " " + b);
      if (r != 8 || g != 8 || b != 8) {
        if (r != 5 || g != 6 || b != 5)
          continue;
      }
      EGLSurface surface = null;
      try {
        this.config = selectedConfigs[i];
        EGLContext ctx = egl.eglCreateContext(display, this.config, EGL10.EGL_NO_CONTEXT, v2);
        if (ctx == null || ctx == EGL10.EGL_NO_CONTEXT)
          ctx = egl.eglCreateContext(display, this.config, EGL10.EGL_NO_CONTEXT, none);
        if (ctx != null && ctx != EGL10.EGL_NO_CONTEXT) {
          //try to create a surface and make it current successfully
          //before confirming this is the right config/context
          holder.setFormat((r == 5) ? PixelFormat.RGB_565 : PixelFormat.RGBA_8888);
          surface = egl.eglCreateWindowSurface(display, this.config, holder, null);
          if (surface != null && surface != EGL10.EGL_NO_SURFACE) {
            //try to make current
            if (egl.eglMakeCurrent(display, surface, surface, ctx)) {
              //yes! this combination works!!!
              return ctx;
            }
            this.config = null;
          }
        }
      } catch (Throwable ex) {
      } finally {
        egl.eglMakeCurrent(display, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
        if (surface != null && surface != EGL10.EGL_NO_SURFACE)
          egl.eglDestroySurface(display, surface);
        surface = null;
      }
    }
    this.config = null;
    supported = false;
    MainHandler.sendMessage(this, MSG_OPENGL_ERROR);
    return egl.eglCreateContext(display, config, EGL10.EGL_NO_CONTEXT, none);
  }
  
  @Override
  public void destroyContext(EGL10 egl, EGLDisplay display, EGLContext context) {
    if (egl != null && display != null && context != null)
      egl.eglDestroyContext(display, context);
  }
  
  //Runs on a SECONDARY thread (A)
  @Override
  public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    if (type == TYPE_SPECTRUM)
      SimpleVisualizerJni.commonSetColorIndex(colorIndex);
    SimpleVisualizerJni.commonSetSpeed(speed);
    if (GLVersion == -1) {
      supported = true;
      Process ifc = null;
      BufferedReader bis = null;
      try {
        ifc = Runtime.getRuntime().exec("getprop ro.opengles.version");
        bis = new BufferedReader(new InputStreamReader(ifc.getInputStream()));
        String line = bis.readLine();
        GLVersion = Integer.parseInt(line);
        supported = (GLVersion >= 0x00020000);
        if (!supported)
          MainHandler.sendMessage(this, MSG_OPENGL_ERROR);
      } catch (Throwable ex) {
      } finally {
        try {
          if (bis != null)
            bis.close();
        } catch (Throwable ex) {
        }
        try {
          if (ifc != null)
            ifc.destroy();
        } catch (Throwable ex) {
        }
      }
    }
    if (!supported)
      return;
    if ((error = SimpleVisualizerJni.glOnSurfaceCreated(UI.color_visualizer, type)) != 0) {
      supported = false;
      MainHandler.sendMessage(this, MSG_OPENGL_ERROR);
    }
  }
  
  //Runs on a SECONDARY thread (A)
  @Override
  public void onSurfaceChanged(GL10 gl, int width, int height) {
    if (!supported)
      return;
    viewWidth = width;
    viewHeight = height;
    SimpleVisualizerJni.glOnSurfaceChanged(width, height);
    okToRender = true;
    /*if (type == TYPE_LIQUID && !imageChoosenAtLeastOnce) {
      imageChoosenAtLeastOnce = true;
      MainHandler.sendMessage(this, MSG_CHOOSE_IMAGE);
    }*/
  }
  
  //Runs on the MAIN thread
  @Override
  public void surfaceDestroyed(SurfaceHolder holder) {
    //is it really necessary to call any cleanup code for OpenGL in Android??????
    okToRender = false;
    super.surfaceDestroyed(holder);
    //some times surfaceDestroyed is called, but after resuming,
    //onSurfaceCreated is not called, only onSurfaceChanged is! :/
  }

  private void loadBitmap() {
    if (activity == null || selectedUri == null)
      return;

    /*String path = null;
    int orientation = 1;

    //Try to fetch the image's rotation from EXIF (this process needs the exact path)
    //Based on: http://stackoverflow.com/q/2169649/3569421
    try {
      final String[] projection = {MediaStore.Images.Media.DATA};
      final Cursor cursor = activity.managedQuery(selectedUri, projection, null, null, null);
      if (cursor != null) {
        final int column_index = cursor.getColumnIndex(MediaStore.Images.Media.DATA);
        if (column_index >= 0) {
          cursor.moveToFirst();
          path = cursor.getString(column_index);
        }
      }
    } catch (Throwable ex) {
    }
    try {
      //OI FILE Manager
      if (path == null)
        path = selectedUri.getPath();
      orientation = (new ExifInterface(path)).getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
    } catch (Throwable ex) {
    }*/

    InputStream input = null;
    Bitmap bitmap = null;
    try {
      input = activity.getContentResolver().openInputStream(selectedUri);
      BitmapFactory.Options opts = new BitmapFactory.Options();
      opts.inJustDecodeBounds = true;
      bitmap = BitmapFactory.decodeStream(input, null, opts);
      input.close();
      input = null;

      final int maxDim = Math.max(320, Math.min(1024, Math.max(viewWidth, viewHeight)));

      opts.inSampleSize = 1;
      int largest = ((opts.outWidth >= opts.outHeight) ? opts.outWidth : opts.outHeight);
      while (largest > maxDim) {
        opts.inSampleSize <<= 1;
        largest >>= 1;
      }

      input = activity.getContentResolver().openInputStream(selectedUri);
      opts.inJustDecodeBounds = false;
      opts.inPreferredConfig = Bitmap.Config.RGB_565;
      opts.inDither = true;
      bitmap = BitmapFactory.decodeStream(input, null, opts);

      if (bitmap != null) {
        if (opts.outWidth != opts.outHeight && ((opts.outWidth > opts.outHeight) != (viewWidth > viewHeight))) {
          //rotate the image 90 degress
          final Matrix matrix = new Matrix();
          matrix.postRotate(-90);
          final Bitmap newBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
          if (bitmap != newBitmap && newBitmap != null) {
            bitmap.recycle();
            bitmap = newBitmap;
          }
          System.gc();
        }
        SimpleVisualizerJni.glLoadBitmapFromJava(bitmap);
      }
    } catch (Throwable ex) {
    } finally {
      if (input != null) {
        try {
          input.close();
        } catch (Throwable ex) {
        }
      }
      if (bitmap != null)
        bitmap.recycle();
      System.gc();
    }
  }

  //Runs on a SECONDARY thread (A)
  @Override
  public void onDrawFrame(GL10 gl) {
    if (okToRender) {
      if (selectedUri != null) {
        loadBitmap();
        selectedUri = null;
      }
      SimpleVisualizerJni.glDrawFrame();
    }
  }

  @Override
  public boolean handleMessage(Message msg) {
    switch (msg.what) {
    case MSG_OPENGL_ERROR:
      if (!alerted) {
        alerted = true;
        final Context ctx = getContext();
        UI.toast(ctx, ctx.getText(R.string.sorry) + " " + ((error != 0) ? (ctx.getText(R.string.opengl_error).toString() + ": " + error) : ctx.getText(R.string.opengl_not_supported).toString()) + " :(");
      }
      break;
    case MSG_CHOOSE_IMAGE:
      chooseImage();
      break;
    }
    return true;
  }
  
  @Override
  @ExportedProperty(category = "drawing")
  public final boolean isOpaque() {
    return true;
  }

  private void chooseImage() {
    //Based on: http://stackoverflow.com/a/20177611/3569421
    //Based on: http://stackoverflow.com/a/4105966/3569421
    if (activity != null && selectedUri == null && !browsing && okToRender) {
      browsing = true;
      imageChoosenAtLeastOnce = true;
      final Intent intent = new Intent();
      intent.setType("image/*");
      intent.setAction(Intent.ACTION_GET_CONTENT);
      activity.startActivityForResult(intent, 1234);
    }
  }

  @Override
  public boolean onMenuItemClick(MenuItem item) {
    final int id = item.getItemId();
    switch (id) {
    case MNU_COLOR:
      colorIndex = ((colorIndex == 0) ? 257 : 0);
      SimpleVisualizerJni.commonSetColorIndex(colorIndex);
      break;
    case MNU_SPEED0:
    case MNU_SPEED1:
    case MNU_SPEED2:
      speed = id - MNU_SPEED0;
      SimpleVisualizerJni.commonSetSpeed(speed);
      break;
    case MNU_CHOOSE_IMAGE:
      chooseImage();
      break;
    case MNU_ABOUT:
      if (activity == null)
        break;
      UI.prepareDialogAndShow((new AlertDialog.Builder(activity))
        .setTitle(activity.getText(R.string.about))
        .setView(UI.createDialogView(activity, SafeURLSpan.parseSafeHtml("I/O fragment shader by movAX13h, August 2013<br/><a href=\"https://www.shadertoy.com/view/XsfGDS\">shadertoy.com/view/XsfGDS</a>")))
        .setCancelable(true)
        .setPositiveButton(R.string.ok, this)
        .create());
      break;
    }
    return true;
  }
  
  //Runs on the MAIN thread
  @Override
  public VisualizerView getView() {
    return this;
  }

  //Runs on the MAIN thread
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 1234) {
      browsing = false;
      if (resultCode == Activity.RESULT_OK)
        selectedUri = data.getData();
    }
  }

  //Runs on the MAIN thread
  @Override
  public void onCreateContextMenu(ContextMenu menu) {
    final Context ctx = getContext();
    if (type != TYPE_SPIN && type != TYPE_PARTICLE)
      UI.separator(menu, 1, 0);

    switch (type) {
    case TYPE_LIQUID:
      menu.add(1, MNU_CHOOSE_IMAGE, 1, R.string.choose_image)
        .setOnMenuItemClickListener(this)
        .setIcon(new TextIconDrawable(UI.ICON_PALETTE));
      break;
    case TYPE_SPIN:
    case TYPE_PARTICLE:
      break;
    default:
      menu.add(1, MNU_COLOR, 1, (colorIndex == 0) ? R.string.green : R.string.blue)
        .setOnMenuItemClickListener(this)
        .setIcon(new TextIconDrawable(UI.ICON_PALETTE));
      break;
    }
    UI.separator(menu, 1, 2);
    menu.add(2, MNU_SPEED0, 0, ctx.getText(R.string.speed) + ": 0")
      .setOnMenuItemClickListener(this)
      .setIcon(new TextIconDrawable((speed != 1 && speed != 2) ? UI.ICON_RADIOCHK : UI.ICON_RADIOUNCHK));
    menu.add(2, MNU_SPEED1, 1, ctx.getText(R.string.speed) + ": 1")
      .setOnMenuItemClickListener(this)
      .setIcon(new TextIconDrawable((speed == 1) ? UI.ICON_RADIOCHK : UI.ICON_RADIOUNCHK));
    menu.add(2, MNU_SPEED2, 2, ctx.getText(R.string.speed) + ": 2")
      .setOnMenuItemClickListener(this)
      .setIcon(new TextIconDrawable((speed == 2) ? UI.ICON_RADIOCHK : UI.ICON_RADIOUNCHK));
  }
  
  //Runs on the MAIN thread
  @Override
  public void onClick() {
  }

  //Runs on the MAIN thread
  @Override
  public void onPlayerChanged(Song currentSong, boolean songHasChanged, Throwable ex) {
  }

  //Runs on the MAIN thread (returned value MUST always be the same)
  @Override
  public boolean requiresScreen() {
    return true;
  }

  //Runs on ANY thread (returned value MUST always be the same)
  @Override
  public int getDesiredPointCount() {
    return 1024;
  }
  
  //Runs on a SECONDARY thread (B)
  @Override
  public void load(Context context) {
    SimpleVisualizerJni.commonCheckNeonMode();
  }
  
  //Runs on ANY thread
  @Override
  public boolean isLoading() {
    return false;
  }
  
  //Runs on ANY thread
  @Override
  public void cancelLoading() {
    
  }
  
  //Runs on the MAIN thread
  @Override
  public void configurationChanged(boolean landscape) {
    
  }

  //Runs on a SECONDARY thread (B)
  @Override
  public void processFrame(android.media.audiofx.Visualizer visualizer, boolean playing, int deltaMillis) {
    if (okToRender) {
      //WE MUST NEVER call any method from visualizer
      //while the player is not actually playing
      if (!playing)
        Arrays.fill(bfft, 0, 1024, (byte)0);
      else
        visualizer.getFft(bfft);
      SimpleVisualizerJni.commonProcess(bfft, deltaMillis, 0);
      //requestRender();
    }
  }
  
  //Runs on a SECONDARY thread (B)
  @Override
  public void release() {
    bfft = null;
  }
  
  //Runs on the MAIN thread (returned value MUST always be the same)
  @Override
  public boolean isFullscreen() {
    return true;
  }
  
  //Runs on the MAIN thread (called only if isFullscreen() returns false)
  public Point getDesiredSize(int availableWidth, int availableHeight) {
    return new Point(availableWidth, availableHeight);
  }
  
  //Runs on the MAIN thread (AFTER Visualizer.release())
  @Override
  public void releaseView() {
    activity = null;
    SimpleVisualizerJni.glReleaseView();
  }

  @Override
  public void onClick(DialogInterface dialogInterface, int which) {

  }
}




Java Source Code List

br.com.carlosrafaelgn.fplay.ActivityAbout.java
br.com.carlosrafaelgn.fplay.ActivityBrowser2.java
br.com.carlosrafaelgn.fplay.ActivityBrowserRadio.java
br.com.carlosrafaelgn.fplay.ActivityBrowserView.java
br.com.carlosrafaelgn.fplay.ActivityEffects.java
br.com.carlosrafaelgn.fplay.ActivityFileSelection.java
br.com.carlosrafaelgn.fplay.ActivityItemView.java
br.com.carlosrafaelgn.fplay.ActivityMain.java
br.com.carlosrafaelgn.fplay.ActivitySettings.java
br.com.carlosrafaelgn.fplay.ExternalReceiver.java
br.com.carlosrafaelgn.fplay.WidgetMain.java
br.com.carlosrafaelgn.fplay.activity.ActivityHost.java
br.com.carlosrafaelgn.fplay.activity.ActivityVisualizer.java
br.com.carlosrafaelgn.fplay.activity.ClientActivity.java
br.com.carlosrafaelgn.fplay.activity.MainHandler.java
br.com.carlosrafaelgn.fplay.list.AlbumArtFetcher.java
br.com.carlosrafaelgn.fplay.list.BaseItem.java
br.com.carlosrafaelgn.fplay.list.BaseList.java
br.com.carlosrafaelgn.fplay.list.FileFetcher.java
br.com.carlosrafaelgn.fplay.list.FileList.java
br.com.carlosrafaelgn.fplay.list.FileSt.java
br.com.carlosrafaelgn.fplay.list.RadioStationList.java
br.com.carlosrafaelgn.fplay.list.RadioStation.java
br.com.carlosrafaelgn.fplay.list.SongList.java
br.com.carlosrafaelgn.fplay.list.Song.java
br.com.carlosrafaelgn.fplay.playback.BassBoost.java
br.com.carlosrafaelgn.fplay.playback.Equalizer.java
br.com.carlosrafaelgn.fplay.playback.MetadataExtractor.java
br.com.carlosrafaelgn.fplay.playback.Player.java
br.com.carlosrafaelgn.fplay.playback.PresetReverb.java
br.com.carlosrafaelgn.fplay.playback.Virtualizer.java
br.com.carlosrafaelgn.fplay.ui.BgButton.java
br.com.carlosrafaelgn.fplay.ui.BgColorStateList.java
br.com.carlosrafaelgn.fplay.ui.BgListView.java
br.com.carlosrafaelgn.fplay.ui.BgSeekBar.java
br.com.carlosrafaelgn.fplay.ui.BgTextView.java
br.com.carlosrafaelgn.fplay.ui.ColorPickerView.java
br.com.carlosrafaelgn.fplay.ui.CustomContextMenu.java
br.com.carlosrafaelgn.fplay.ui.FileView.java
br.com.carlosrafaelgn.fplay.ui.InterceptableLayout.java
br.com.carlosrafaelgn.fplay.ui.ObservableScrollView.java
br.com.carlosrafaelgn.fplay.ui.RadioStationView.java
br.com.carlosrafaelgn.fplay.ui.SettingView.java
br.com.carlosrafaelgn.fplay.ui.SongAddingMonitor.java
br.com.carlosrafaelgn.fplay.ui.SongView.java
br.com.carlosrafaelgn.fplay.ui.UI.java
br.com.carlosrafaelgn.fplay.ui.drawable.BorderDrawable.java
br.com.carlosrafaelgn.fplay.ui.drawable.ColorDrawable.java
br.com.carlosrafaelgn.fplay.ui.drawable.NullDrawable.java
br.com.carlosrafaelgn.fplay.ui.drawable.StateDrawable.java
br.com.carlosrafaelgn.fplay.ui.drawable.TextIconDrawable.java
br.com.carlosrafaelgn.fplay.util.ArraySorter.java
br.com.carlosrafaelgn.fplay.util.BitmapLruCache.java
br.com.carlosrafaelgn.fplay.util.BluetoothConnectionManager.java
br.com.carlosrafaelgn.fplay.util.ColorUtils.java
br.com.carlosrafaelgn.fplay.util.ReleasableBitmapWrapper.java
br.com.carlosrafaelgn.fplay.util.SafeURLSpan.java
br.com.carlosrafaelgn.fplay.util.SerializableMap.java
br.com.carlosrafaelgn.fplay.util.Serializer.java
br.com.carlosrafaelgn.fplay.util.SlimLock.java
br.com.carlosrafaelgn.fplay.util.Timer.java
br.com.carlosrafaelgn.fplay.visualizer.BluetoothVisualizerJni.java
br.com.carlosrafaelgn.fplay.visualizer.OpenGLVisualizerJni.java
br.com.carlosrafaelgn.fplay.visualizer.SimpleVisualizerJni.java
br.com.carlosrafaelgn.fplay.visualizer.VisualizerView.java
br.com.carlosrafaelgn.fplay.visualizer.Visualizer.java