1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.example.plasma.llvm; 17 18 import android.app.Activity; 19 import android.os.Bundle; 20 import android.content.Context; 21 import android.view.View; 22 import android.view.Menu; 23 import android.view.MenuItem; 24 import android.view.MenuInflater; 25 import android.graphics.Bitmap; 26 import android.graphics.Canvas; 27 import android.graphics.Paint; 28 29 import java.io.InputStream; 30 import java.io.FileInputStream; 31 import java.io.FileOutputStream; 32 import java.io.BufferedOutputStream; 33 import java.io.IOException; 34 35 import android.content.res.Resources; 36 37 public class Plasma extends Activity 38 { 39 /** Called when the activity is first created. */ 40 @Override onCreate(Bundle savedInstanceState)41 public void onCreate(Bundle savedInstanceState) 42 { 43 super.onCreate(savedInstanceState); 44 view = new PlasmaView(this); 45 setContentView(view); 46 } 47 48 @Override onCreateOptionsMenu(Menu menu)49 public boolean onCreateOptionsMenu(Menu menu) { 50 MenuInflater inflater = getMenuInflater(); 51 inflater.inflate(R.menu.menu, menu); 52 return true; 53 } 54 55 @Override onOptionsItemSelected(MenuItem item)56 public boolean onOptionsItemSelected(MenuItem item) { 57 switch (item.getItemId()) { 58 case R.id.switch_mode: 59 view.switchMode(); 60 61 return true; 62 default: 63 return super.onOptionsItemSelected(item); 64 } 65 } 66 67 private PlasmaView view; 68 69 /* load our native library */ 70 static { 71 System.loadLibrary("plasma"); 72 } 73 } 74 75 class PlasmaView extends View { 76 private Bitmap mBitmap; 77 private long mStartTime; 78 79 /* implementend by libplasma.so */ nativeRenderPlasma(Bitmap bitmap, long time_ms, byte[] script, int scriptLength, boolean useLLVM)80 private static native int nativeRenderPlasma(Bitmap bitmap, long time_ms, byte[] script, int scriptLength, boolean useLLVM); 81 82 private byte[] pgm; 83 private int pgmLength; 84 85 private boolean mode = true; 86 private Paint paint = null; 87 switchMode()88 public void switchMode() { 89 mode = !mode; 90 } 91 PlasmaView(Context context)92 public PlasmaView(Context context) { 93 super(context); 94 95 mStartTime = System.currentTimeMillis(); 96 97 InputStream is = null; 98 is = getResources().openRawResource(R.raw.libplasma_portable); 99 try { 100 try { 101 pgm = new byte[1024]; 102 pgmLength = 0; 103 while(true) { 104 int bytesLeft = pgm.length - pgmLength; 105 if (bytesLeft == 0) { 106 byte[] buf2 = new byte[pgm.length * 2]; 107 System.arraycopy(pgm, 0, buf2, 0, pgm.length); 108 pgm = buf2; 109 bytesLeft = pgm.length - pgmLength; 110 } 111 int bytesRead = is.read(pgm, pgmLength, bytesLeft); 112 if (bytesRead <= 0) { 113 break; 114 } 115 pgmLength += bytesRead; 116 } 117 } finally { 118 is.close(); 119 } 120 } catch(IOException e) { 121 throw new Resources.NotFoundException(); 122 } 123 paint = new Paint(); 124 paint.setTextSize(40); 125 } 126 onDraw(Canvas canvas)127 @Override protected void onDraw(Canvas canvas) { 128 if (mBitmap == null || mBitmap.getWidth() != getWidth() || mBitmap.getHeight() != getHeight()) 129 mBitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.RGB_565); 130 131 int frameRate = nativeRenderPlasma(mBitmap, System.currentTimeMillis() - mStartTime, pgm, pgmLength, mode); 132 canvas.drawBitmap(mBitmap, 0, 0, null); 133 canvas.drawText((mode ? "LLVM" : "GCC") + " Frame: " + Integer.toString(frameRate), 100, 100, paint); 134 135 // force a redraw, with a different time-based pattern. 136 invalidate(); 137 } 138 } 139