1 /* 2 * Copyright (C) 2012 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 17 package com.android.rs.levels; 18 19 import android.app.Activity; 20 import android.graphics.Bitmap; 21 import android.graphics.BitmapFactory; 22 import android.graphics.Canvas; 23 import android.os.Bundle; 24 import android.graphics.SurfaceTexture; 25 import android.view.Surface; 26 import android.renderscript.Allocation; 27 import android.renderscript.Matrix3f; 28 import android.renderscript.RenderScript; 29 import android.util.Log; 30 import android.view.TextureView; 31 import android.view.View; 32 import android.widget.ImageView; 33 import android.widget.SeekBar; 34 import android.widget.TextView; 35 36 public class LevelsRSActivity extends Activity 37 implements SeekBar.OnSeekBarChangeListener, 38 TextureView.SurfaceTextureListener 39 { 40 private final String TAG = "Img"; 41 private Bitmap mBitmapIn; 42 private float mInBlack = 0.0f; 43 private SeekBar mInBlackSeekBar; 44 private float mOutBlack = 0.0f; 45 private SeekBar mOutBlackSeekBar; 46 private float mInWhite = 255.0f; 47 private SeekBar mInWhiteSeekBar; 48 private float mOutWhite = 255.0f; 49 private SeekBar mOutWhiteSeekBar; 50 private float mGamma = 1.0f; 51 private SeekBar mGammaSeekBar; 52 private float mSaturation = 1.0f; 53 private SeekBar mSaturationSeekBar; 54 private TextView mBenchmarkResult; 55 private TextureView mDisplayView; 56 57 Matrix3f satMatrix = new Matrix3f(); 58 float mInWMinInB; 59 float mOutWMinOutB; 60 float mOverInWMinInB; 61 62 private RenderScript mRS; 63 private Allocation mInPixelsAllocation; 64 private Allocation mOutPixelsAllocation; 65 private ScriptC_levels mScript; 66 67 private void setLevels() { 68 mInWMinInB = mInWhite - mInBlack; 69 mOutWMinOutB = mOutWhite - mOutBlack; 70 mOverInWMinInB = 1.f / mInWMinInB; 71 72 mScript.set_inBlack(mInBlack); 73 mScript.set_outBlack(mOutBlack); 74 mScript.set_inWMinInB(mInWMinInB); 75 mScript.set_outWMinOutB(mOutWMinOutB); 76 mScript.set_overInWMinInB(mOverInWMinInB); 77 } 78 79 private void setSaturation() { 80 float rWeight = 0.299f; 81 float gWeight = 0.587f; 82 float bWeight = 0.114f; 83 float oneMinusS = 1.0f - mSaturation; 84 85 satMatrix.set(0, 0, oneMinusS * rWeight + mSaturation); 86 satMatrix.set(0, 1, oneMinusS * rWeight); 87 satMatrix.set(0, 2, oneMinusS * rWeight); 88 satMatrix.set(1, 0, oneMinusS * gWeight); 89 satMatrix.set(1, 1, oneMinusS * gWeight + mSaturation); 90 satMatrix.set(1, 2, oneMinusS * gWeight); 91 satMatrix.set(2, 0, oneMinusS * bWeight); 92 satMatrix.set(2, 1, oneMinusS * bWeight); 93 satMatrix.set(2, 2, oneMinusS * bWeight + mSaturation); 94 mScript.set_colorMat(satMatrix); 95 } 96 97 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 98 if (fromUser) { 99 if (seekBar == mInBlackSeekBar) { 100 mInBlack = (float)progress; 101 setLevels(); 102 } else if (seekBar == mOutBlackSeekBar) { 103 mOutBlack = (float)progress; 104 setLevels(); 105 } else if (seekBar == mInWhiteSeekBar) { 106 mInWhite = (float)progress + 127.0f; 107 setLevels(); 108 } else if (seekBar == mOutWhiteSeekBar) { 109 mOutWhite = (float)progress + 127.0f; 110 setLevels(); 111 } else if (seekBar == mGammaSeekBar) { 112 mGamma = (float)progress/100.0f; 113 mGamma = Math.max(mGamma, 0.1f); 114 mGamma = 1.0f / mGamma; 115 mScript.set_gamma(mGamma); 116 } else if (seekBar == mSaturationSeekBar) { 117 mSaturation = (float)progress / 50.0f; 118 setSaturation(); 119 } 120 121 filter(); 122 mDisplayView.invalidate(); 123 } 124 } 125 126 public void onStartTrackingTouch(SeekBar seekBar) { 127 } 128 129 public void onStopTrackingTouch(SeekBar seekBar) { 130 } 131 132 @Override 133 protected void onCreate(Bundle savedInstanceState) { 134 super.onCreate(savedInstanceState); 135 setContentView(R.layout.rs); 136 137 mBitmapIn = loadBitmap(R.drawable.city); 138 mDisplayView = (TextureView) findViewById(R.id.display); 139 140 mInBlackSeekBar = (SeekBar)findViewById(R.id.inBlack); 141 mInBlackSeekBar.setOnSeekBarChangeListener(this); 142 mInBlackSeekBar.setMax(128); 143 mInBlackSeekBar.setProgress(0); 144 mOutBlackSeekBar = (SeekBar)findViewById(R.id.outBlack); 145 mOutBlackSeekBar.setOnSeekBarChangeListener(this); 146 mOutBlackSeekBar.setMax(128); 147 mOutBlackSeekBar.setProgress(0); 148 149 mInWhiteSeekBar = (SeekBar)findViewById(R.id.inWhite); 150 mInWhiteSeekBar.setOnSeekBarChangeListener(this); 151 mInWhiteSeekBar.setMax(128); 152 mInWhiteSeekBar.setProgress(128); 153 mOutWhiteSeekBar = (SeekBar)findViewById(R.id.outWhite); 154 mOutWhiteSeekBar.setOnSeekBarChangeListener(this); 155 mOutWhiteSeekBar.setMax(128); 156 mOutWhiteSeekBar.setProgress(128); 157 158 mGammaSeekBar = (SeekBar)findViewById(R.id.inGamma); 159 mGammaSeekBar.setOnSeekBarChangeListener(this); 160 mGammaSeekBar.setMax(150); 161 mGammaSeekBar.setProgress(100); 162 163 mSaturationSeekBar = (SeekBar)findViewById(R.id.inSaturation); 164 mSaturationSeekBar.setOnSeekBarChangeListener(this); 165 mSaturationSeekBar.setProgress(50); 166 167 mBenchmarkResult = (TextView) findViewById(R.id.benchmarkText); 168 mBenchmarkResult.setText("Result: not run"); 169 170 mRS = RenderScript.create(this); 171 mInPixelsAllocation = Allocation.createFromBitmap(mRS, mBitmapIn, 172 Allocation.MipmapControl.MIPMAP_NONE, 173 Allocation.USAGE_SCRIPT); 174 mOutPixelsAllocation = Allocation.createTyped(mRS, mInPixelsAllocation.getType(), 175 Allocation.USAGE_SCRIPT | 176 Allocation.USAGE_IO_OUTPUT); 177 mDisplayView.setSurfaceTextureListener(this); 178 179 mScript = new ScriptC_levels(mRS); 180 mScript.set_gamma(mGamma); 181 182 setSaturation(); 183 setLevels(); 184 } 185 186 private Bitmap loadBitmap(int resource) { 187 final BitmapFactory.Options options = new BitmapFactory.Options(); 188 options.inPreferredConfig = Bitmap.Config.ARGB_8888; 189 Bitmap b = BitmapFactory.decodeResource(getResources(), resource, options); 190 Bitmap b2 = Bitmap.createBitmap(b.getWidth(), b.getHeight(), b.getConfig()); 191 Canvas c = new Canvas(b2); 192 c.drawBitmap(b, 0, 0, null); 193 b.recycle(); 194 return b2; 195 } 196 197 private void filter() { 198 mScript.forEach_root(mInPixelsAllocation, mOutPixelsAllocation); 199 mOutPixelsAllocation.ioSend(); 200 mRS.finish(); 201 } 202 203 public void benchmark(View v) { 204 filter(); 205 long t = java.lang.System.currentTimeMillis(); 206 filter(); 207 t = java.lang.System.currentTimeMillis() - t; 208 mDisplayView.invalidate(); 209 mBenchmarkResult.setText("Result: " + t + " ms"); 210 } 211 212 213 @Override 214 public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 215 if (surface != null) { 216 mOutPixelsAllocation.setSurface(new Surface(surface)); 217 } 218 filter(); 219 } 220 221 @Override 222 public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 223 if (surface != null) { 224 mOutPixelsAllocation.setSurface(new Surface(surface)); 225 } 226 } 227 228 @Override 229 public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 230 mOutPixelsAllocation.setSurface(null); 231 return true; 232 } 233 234 @Override 235 public void onSurfaceTextureUpdated(SurfaceTexture surface) { 236 } 237 } 238
