mirror of https://github.com/opencv/opencv.git
* Added manual port for getTextSize; * Fixed bugs in "native camera" sample; * Added 15-puzzle sample.pull/13383/head
Andrey Kamaev
14 years ago
parent
ae5dd1d748
commit
be2c4ddbdd
13 changed files with 560 additions and 31 deletions
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<?xml version="1.0" encoding="UTF-8"?> |
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<classpath> |
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<classpathentry kind="src" path="src"/> |
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<classpathentry kind="src" path="gen"/> |
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<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/> |
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<classpathentry kind="src" path="OpenCV-2.3.1_src"/> |
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<classpathentry kind="output" path="bin"/> |
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</classpath> |
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<?xml version="1.0" encoding="UTF-8"?> |
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<projectDescription> |
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<name>15-puzzle</name> |
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<comment></comment> |
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<projects> |
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</projects> |
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<buildSpec> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>org.eclipse.jdt.core.javabuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.ApkBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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</buildSpec> |
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<natures> |
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<nature>com.android.ide.eclipse.adt.AndroidNature</nature> |
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<nature>org.eclipse.jdt.core.javanature</nature> |
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</natures> |
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<linkedResources> |
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<link> |
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<name>OpenCV-2.3.1_src</name> |
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<type>2</type> |
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<locationURI>_android_OpenCV_2_3_1_df28900a/src</locationURI> |
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</link> |
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</linkedResources> |
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</projectDescription> |
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#Wed Jun 29 04:36:40 MSD 2011 |
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eclipse.preferences.version=1 |
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5 |
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org.eclipse.jdt.core.compiler.compliance=1.5 |
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org.eclipse.jdt.core.compiler.source=1.5 |
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<?xml version="1.0" encoding="utf-8"?> |
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" |
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package="org.opencv.samples.puzzle15" |
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android:versionCode="1" |
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android:versionName="1.0"> |
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|
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<application android:icon="@drawable/icon" android:label="@string/app_name"> |
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<activity android:name=".puzzle15Activity" |
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android:label="@string/app_name" |
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android:screenOrientation="landscape" |
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android:configChanges="keyboardHidden|orientation"> |
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<intent-filter> |
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<action android:name="android.intent.action.MAIN" /> |
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<category android:name="android.intent.category.LAUNCHER" /> |
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</intent-filter> |
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</activity> |
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</application> |
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|
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<uses-sdk android:minSdkVersion="8" /> |
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|
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<uses-permission android:name="android.permission.CAMERA"/> |
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<uses-feature android:name="android.hardware.camera" /> |
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<uses-feature android:name="android.hardware.camera.autofocus" /> |
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</manifest> |
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android.library.reference.1=../../../android/build |
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# Project target. |
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target=android-8 |
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After Width: | Height: | Size: 5.6 KiB |
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<?xml version="1.0" encoding="utf-8"?> |
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<resources> |
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<string name="app_name">15-puzzle</string> |
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</resources> |
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package org.opencv.samples.puzzle15; |
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import java.util.List; |
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import org.opencv.*; |
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import android.content.Context; |
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import android.graphics.Bitmap; |
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import android.graphics.Canvas; |
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import android.util.Log; |
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import android.view.SurfaceHolder; |
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import android.view.SurfaceView; |
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public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable { |
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private static final String TAG = "Sample::SurfaceView"; |
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private SurfaceHolder mHolder; |
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private VideoCapture mCamera; |
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public SampleViewBase(Context context) { |
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super(context); |
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mHolder = getHolder(); |
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mHolder.addCallback(this); |
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Log.i(TAG, "Instantiated new " + this.getClass()); |
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} |
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public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) { |
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Log.i(TAG, "surfaceCreated"); |
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synchronized (this) { |
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if (mCamera != null && mCamera.isOpened()) { |
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Log.i(TAG, "before mCamera.getSupportedPreviewSizes()"); |
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List<Size> sizes = mCamera.getSupportedPreviewSizes(); |
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Log.i(TAG, "after mCamera.getSupportedPreviewSizes()"); |
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int mFrameWidth = width; |
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int mFrameHeight = height; |
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// selecting optimal camera preview size
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{ |
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double minDiff = Double.MAX_VALUE; |
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for (Size size : sizes) { |
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if (Math.abs(size.height - height) < minDiff) { |
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mFrameWidth = (int) size.width; |
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mFrameHeight = (int) size.height; |
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minDiff = Math.abs(size.height - height); |
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} |
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} |
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} |
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mCamera.set(highgui.CV_CAP_PROP_FRAME_WIDTH, mFrameWidth); |
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mCamera.set(highgui.CV_CAP_PROP_FRAME_HEIGHT, mFrameHeight); |
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} |
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} |
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} |
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public void surfaceCreated(SurfaceHolder holder) { |
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Log.i(TAG, "surfaceCreated"); |
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mCamera = new VideoCapture(highgui.CV_CAP_ANDROID); |
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if (mCamera.isOpened()) { |
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(new Thread(this)).start(); |
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} else { |
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mCamera.release(); |
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mCamera = null; |
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Log.e(TAG, "Failed to open native camera"); |
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} |
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} |
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public void surfaceDestroyed(SurfaceHolder holder) { |
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Log.i(TAG, "surfaceDestroyed"); |
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if (mCamera != null) { |
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synchronized (this) { |
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mCamera.release(); |
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mCamera = null; |
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} |
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} |
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} |
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protected abstract Bitmap processFrame(VideoCapture capture); |
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public void run() { |
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Log.i(TAG, "Starting processing thread"); |
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while (true) { |
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Bitmap bmp = null; |
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synchronized (this) { |
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if (mCamera == null) |
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break; |
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if (!mCamera.grab()) { |
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Log.e(TAG, "mCamera.grab() failed"); |
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break; |
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} |
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bmp = processFrame(mCamera); |
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} |
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if (bmp != null) { |
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Canvas canvas = mHolder.lockCanvas(); |
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if (canvas != null) { |
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canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null); |
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mHolder.unlockCanvasAndPost(canvas); |
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} |
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bmp.recycle(); |
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} |
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} |
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Log.i(TAG, "Finishing processing thread"); |
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} |
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} |
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@ -0,0 +1,50 @@ |
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package org.opencv.samples.puzzle15; |
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import android.app.Activity; |
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import android.os.Bundle; |
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import android.util.Log; |
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import android.view.Menu; |
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import android.view.MenuItem; |
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import android.view.Window; |
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public class puzzle15Activity extends Activity { |
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private static final String TAG = "Sample::Activity"; |
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private MenuItem mItemNewGame; |
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private MenuItem mItemToggleNumbers; |
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private puzzle15View mView; |
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public puzzle15Activity() { |
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Log.i(TAG, "Instantiated new " + this.getClass()); |
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} |
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/** Called when the activity is first created. */ |
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@Override |
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public void onCreate(Bundle savedInstanceState) { |
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Log.i(TAG, "onCreate"); |
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super.onCreate(savedInstanceState); |
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requestWindowFeature(Window.FEATURE_NO_TITLE); |
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mView = new puzzle15View(this); |
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setContentView(mView); |
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} |
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@Override |
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public boolean onCreateOptionsMenu(Menu menu) { |
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Log.i(TAG, "onCreateOptionsMenu"); |
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mItemNewGame = menu.add("Start new game"); |
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mItemToggleNumbers = menu.add("Show/hide tile numbers"); |
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return true; |
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} |
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@Override |
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public boolean onOptionsItemSelected(MenuItem item) { |
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Log.i(TAG, "Menu Item selected " + item); |
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if (item == mItemNewGame) { |
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synchronized (mView) { |
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mView.startNewGame(); |
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} |
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} else if (item == mItemToggleNumbers) |
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mView.tolggleTileNumbers(); |
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return true; |
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} |
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} |
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@ -0,0 +1,221 @@ |
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package org.opencv.samples.puzzle15; |
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import org.opencv.*; |
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import android.content.Context; |
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import android.graphics.Bitmap; |
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import android.view.MotionEvent; |
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import android.view.SurfaceHolder; |
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import android.view.View; |
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import android.view.View.OnTouchListener; |
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public class puzzle15View extends SampleViewBase implements OnTouchListener { |
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private Mat mRgba; |
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private Mat mRgba15; |
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private Mat[] mCells; |
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private Mat[] mCells15; |
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private int[] mIndexses; |
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private int[] mTextWidths; |
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private int[] mTextHeights; |
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private boolean mShowTileNumbers = true; |
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int gridSize = 4; |
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int gridArea = gridSize * gridSize; |
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int gridEmptyIdx = gridArea - 1; |
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public puzzle15View(Context context) { |
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super(context); |
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setOnTouchListener(this); |
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mTextWidths = new int[gridArea]; |
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mTextHeights = new int[gridArea]; |
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for (int i = 0; i < gridArea; i++) { |
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Size s = core.getTextSize(Integer.toString(i + 1), 3/* CV_FONT_HERSHEY_COMPLEX */, 1, 2, null); |
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mTextHeights[i] = (int) s.height; |
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mTextWidths[i] = (int) s.width; |
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} |
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} |
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@Override |
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public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) { |
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super.surfaceChanged(_holder, format, width, height); |
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synchronized (this) { |
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// initialize Mat before usage
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mRgba = new Mat(); |
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} |
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} |
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public static void shuffle(int[] array) { |
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for (int i = array.length; i > 1; i--) { |
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int temp = array[i - 1]; |
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int randIx = (int) (Math.random() * i); |
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array[i - 1] = array[randIx]; |
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array[randIx] = temp; |
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} |
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} |
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public boolean isPuzzleSolvable() { |
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if (gridSize != 4) |
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return true; |
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int sum = 0; |
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for (int i = 0; i < gridArea; i++) { |
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if (mIndexses[i] == gridEmptyIdx) |
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sum += (i / gridSize) + 1; |
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else { |
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int smaller = 0; |
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for (int j = i + 1; j < gridArea; j++) { |
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if (mIndexses[j] < mIndexses[i]) |
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smaller++; |
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} |
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sum += smaller; |
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} |
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} |
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return sum % 2 == 0; |
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} |
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private void createPuzzle(int cols, int rows) { |
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mCells = new Mat[gridArea]; |
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mCells15 = new Mat[gridArea]; |
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mRgba15 = new Mat(rows, cols, mRgba.type()); |
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mIndexses = new int[gridArea]; |
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for (int i = 0; i < gridSize; i++) { |
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for (int j = 0; j < gridSize; j++) { |
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int k = i * gridSize + j; |
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mIndexses[k] = k; |
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mCells[k] = mRgba.submat(i * rows / gridSize, (i + 1) * rows / gridSize, j * cols / gridSize, (j + 1) * cols / gridSize); |
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mCells15[k] = mRgba15.submat(i * rows / gridSize, (i + 1) * rows / gridSize, j * cols / gridSize, (j + 1) * cols / gridSize); |
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} |
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} |
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startNewGame(); |
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} |
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public void startNewGame() { |
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do { |
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shuffle(mIndexses); |
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} while (!isPuzzleSolvable()); |
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} |
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public void tolggleTileNumbers() { |
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mShowTileNumbers = !mShowTileNumbers; |
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} |
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@Override |
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protected Bitmap processFrame(VideoCapture capture) { |
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capture.retrieve(mRgba, highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA); |
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int cols = mRgba.cols(); |
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int rows = mRgba.rows(); |
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if (mCells == null) |
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createPuzzle(cols, rows); |
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// copy shuffled tiles
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for (int i = 0; i < gridArea; i++) { |
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int idx = mIndexses[i]; |
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if (idx == gridEmptyIdx) |
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mCells15[i].setTo(new Scalar(0x33, 0x33, 0x33, 0xFF)); |
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else { |
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mCells[idx].copyTo(mCells15[i]); |
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if (mShowTileNumbers) { |
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core.putText(mCells15[i], Integer.toString(1 + idx), new Point((cols / gridSize - mTextWidths[idx]) / 2, |
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(rows / gridSize + mTextHeights[idx]) / 2), 3/* CV_FONT_HERSHEY_COMPLEX */, 1, new Scalar(255, 0, 0, 255), 2); |
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} |
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} |
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} |
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drawGrid(cols, rows); |
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Bitmap bmp = Bitmap.createBitmap(cols, rows, Bitmap.Config.ARGB_8888); |
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if (android.MatToBitmap(mRgba15, bmp)) |
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return bmp; |
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bmp.recycle(); |
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return null; |
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} |
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private void drawGrid(int cols, int rows) { |
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for (int i = 1; i < gridSize; i++) { |
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core.line(mRgba15, new Point(0, i * rows / gridSize), new Point(cols, i * rows / gridSize), new Scalar(0, 255, 0, 255), 3); |
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core.line(mRgba15, new Point(i * cols / gridSize, 0), new Point(i * cols / gridSize, rows), new Scalar(0, 255, 0, 255), 3); |
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} |
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} |
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@Override |
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public void run() { |
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super.run(); |
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synchronized (this) { |
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// Explicitly deallocate Mats
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if (mCells != null) { |
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for (Mat m : mCells) |
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m.dispose(); |
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} |
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if (mCells15 != null) { |
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for (Mat m : mCells15) |
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m.dispose(); |
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} |
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if (mRgba != null) |
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mRgba.dispose(); |
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if (mRgba15 != null) |
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mRgba15.dispose(); |
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mRgba = null; |
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mRgba15 = null; |
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mCells = null; |
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mCells15 = null; |
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mIndexses = null; |
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} |
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} |
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@Override |
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public boolean onTouch(View v, MotionEvent event) { |
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int cols = mRgba.cols(); |
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int rows = mRgba.rows(); |
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float xoffset = (getWidth() - cols) / 2; |
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float yoffset = (getHeight() - rows) / 2; |
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float x = event.getX() - xoffset; |
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float y = event.getY() - yoffset; |
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int row = (int) Math.floor(y * gridSize / rows); |
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int col = (int) Math.floor(x * gridSize / cols); |
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if (row < 0 || row >= gridSize || col < 0 || col >= gridSize) |
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return false; |
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int idx = row * gridSize + col; |
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int idxtoswap = -1; |
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// left
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if (idxtoswap < 0 && col > 0) |
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if (mIndexses[idx - 1] == gridEmptyIdx) |
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idxtoswap = idx - 1; |
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// right
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if (idxtoswap < 0 && col < gridSize - 1) |
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if (mIndexses[idx + 1] == gridEmptyIdx) |
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idxtoswap = idx + 1; |
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// top
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if (idxtoswap < 0 && row > 0) |
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if (mIndexses[idx - gridSize] == gridEmptyIdx) |
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idxtoswap = idx - gridSize; |
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// bottom
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if (idxtoswap < 0 && row < gridSize - 1) |
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if (mIndexses[idx + gridSize] == gridEmptyIdx) |
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idxtoswap = idx + gridSize; |
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// swap
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if (idxtoswap >= 0) { |
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synchronized (this) { |
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int touched = mIndexses[idx]; |
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mIndexses[idx] = mIndexses[idxtoswap]; |
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mIndexses[idxtoswap] = touched; |
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} |
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} |
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return false;// don't need subsequent touch events
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} |
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} |
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