Android samples are renamed

2026-07-29 15:23:05 +04:00 · 2011-07-15 15:56:08 +00:00
parent 39dab5e0cf
commit 7c6fc6e18a
62 changed files with 28 additions and 28 deletions
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="gen"/>
+	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Sample 2 Native API</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
@@ -0,0 +1,5 @@
+#Wed Jun 29 04:36:40 MSD 2011
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.source=1.5
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="org.opencv.samples.s2"
+      android:versionCode="1"
+      android:versionName="1.0">
+
+    <supports-screens android:resizeable="true"
+                      android:smallScreens="true" 
+                      android:normalScreens="true" 
+                      android:largeScreens="true" 
+                      android:anyDensity="true" />
+
+    <application android:label="@string/app_name" android:icon="@drawable/icon">
+        <activity android:name="Sample2Native"
+                  android:label="@string/app_name"
+                  android:screenOrientation="landscape"
+                  android:configChanges="keyboardHidden|orientation">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+    
+    <uses-sdk android:minSdkVersion="8" />
+
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-feature android:name="android.hardware.camera" />
+    <uses-feature android:name="android.hardware.camera.autofocus" />
+
+</manifest> 
@@ -0,0 +1,2 @@
+# Project target.
+target=android-8
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+include ../includeOpenCV.mk
+ifeq ("$(wildcard $(OPENCV_MK_PATH))","")
+	#try to load OpenCV.mk from default install location
+	include $(TOOLCHAIN_PREBUILT_ROOT)/user/share/OpenCV/OpenCV.mk
+else
+	include $(OPENCV_MK_PATH)
+endif
+
+LOCAL_MODULE    := native_sample
+LOCAL_SRC_FILES := jni_part.cpp
+LOCAL_LDLIBS +=  -llog -ldl
+
+include $(BUILD_SHARED_LIBRARY)
@@ -0,0 +1,3 @@
+APP_STL := gnustl_static
+APP_CPPFLAGS := -frtti -fexceptions
+APP_ABI := armeabi-v7a
@@ -0,0 +1,33 @@
+#include <jni.h>
+#include <opencv2/core/core.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+#include <opencv2/features2d/features2d.hpp>
+#include <vector>
+
+using namespace std;
+using namespace cv;
+
+extern "C" {
+JNIEXPORT void JNICALL Java_org_opencv_samples_s2_Sample2View_FindFeatures(JNIEnv* env, jobject thiz, jint width, jint height, jbyteArray yuv, jintArray rgba)
+{
+    jbyte* _yuv  = env->GetByteArrayElements(yuv, 0);
+    jint*  _rgba = env->GetIntArrayElements(rgba, 0);
+
+    Mat myuv(height + height/2, width, CV_8UC1, (unsigned char *)_yuv);
+    Mat mrgba(height, width, CV_8UC4, (unsigned char *)_rgba);
+    Mat mgray(height, width, CV_8UC1, (unsigned char *)_yuv);
+
+    cvtColor(myuv, mrgba, CV_YUV420i2BGR, 4);
+
+    vector<KeyPoint> v;
+
+    FastFeatureDetector detector(50);
+    detector.detect(mgray, v);
+    for( size_t i = 0; i < v.size(); i++ )
+        circle(mrgba, Point(v[i].pt.x, v[i].pt.y), 10, Scalar(0,0,255,255));
+
+    env->ReleaseIntArrayElements(rgba, _rgba, 0);
+    env->ReleaseByteArrayElements(yuv, _yuv, 0);
+}
+
+}
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Sample 2: Native API</string>
+</resources>
@@ -0,0 +1,23 @@
+package org.opencv.samples.s2;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Window;
+
+public class Sample2Native extends Activity {
+    private static final String TAG = "Sample::Activity";
+
+    public Sample2Native() {
+        Log.i(TAG, "Instantiated new " + this.getClass());
+    }
+
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        Log.i(TAG, "onCreate");
+        super.onCreate(savedInstanceState);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        setContentView(new Sample2View(this));
+    }
+}
@@ -0,0 +1,29 @@
+package org.opencv.samples.s2;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+
+class Sample2View extends SampleViewBase {
+
+    public Sample2View(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected Bitmap processFrame(byte[] data) {
+        int frameSize = getFrameWidth() * getFrameHeight();
+        int[] rgba = new int[frameSize];
+
+        FindFeatures(getFrameWidth(), getFrameHeight(), data, rgba);
+
+        Bitmap bmp = Bitmap.createBitmap(getFrameWidth(), getFrameHeight(), Bitmap.Config.ARGB_8888);
+        bmp.setPixels(rgba, 0/* offset */, getFrameWidth() /* stride */, 0, 0, getFrameWidth(), getFrameHeight());
+        return bmp;
+    }
+
+    public native void FindFeatures(int width, int height, byte yuv[], int[] rgba);
+
+    static {
+        System.loadLibrary("native_sample");
+    }
+}
@@ -0,0 +1,119 @@
+package org.opencv.samples.s2;
+
+import java.util.List;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.hardware.Camera;
+import android.hardware.Camera.PreviewCallback;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
+    private static final String TAG = "Sample::SurfaceView";
+
+    private Camera              mCamera;
+    private SurfaceHolder       mHolder;
+    private int                 mFrameWidth;
+    private int                 mFrameHeight;
+    private byte[]              mFrame;
+    private boolean             mThreadRun;
+
+    public SampleViewBase(Context context) {
+        super(context);
+        mHolder = getHolder();
+        mHolder.addCallback(this);
+        Log.i(TAG, "Instantiated new " + this.getClass());
+    }
+
+    public int getFrameWidth() {
+        return mFrameWidth;
+    }
+
+    public int getFrameHeight() {
+        return mFrameHeight;
+    }
+
+    public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
+        Log.i(TAG, "surfaceCreated");
+        if (mCamera != null) {
+            Camera.Parameters params = mCamera.getParameters();
+            List<Camera.Size> sizes = params.getSupportedPreviewSizes();
+            mFrameWidth = width;
+            mFrameHeight = height;
+
+            // selecting optimal camera preview size
+            {
+                double minDiff = Double.MAX_VALUE;
+                for (Camera.Size size : sizes) {
+                    if (Math.abs(size.height - height) < minDiff) {
+                        mFrameWidth = size.width;
+                        mFrameHeight = size.height;
+                        minDiff = Math.abs(size.height - height);
+                    }
+                }
+            }
+
+            params.setPreviewSize(getFrameWidth(), getFrameHeight());
+            mCamera.setParameters(params);
+            mCamera.startPreview();
+        }
+    }
+
+    public void surfaceCreated(SurfaceHolder holder) {
+        Log.i(TAG, "surfaceCreated");
+        mCamera = Camera.open();
+        mCamera.setPreviewCallback(new PreviewCallback() {
+            public void onPreviewFrame(byte[] data, Camera camera) {
+                synchronized (SampleViewBase.this) {
+                    mFrame = data;
+                    SampleViewBase.this.notify();
+                }
+            }
+        });
+        (new Thread(this)).start();
+    }
+
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        Log.i(TAG, "surfaceDestroyed");
+        mThreadRun = false;
+        if (mCamera != null) {
+            synchronized (this) {
+                mCamera.stopPreview();
+                mCamera.setPreviewCallback(null);
+                mCamera.release();
+                mCamera = null;
+            }
+        }
+    }
+
+    protected abstract Bitmap processFrame(byte[] data);
+
+    public void run() {
+        mThreadRun = true;
+        Log.i(TAG, "Starting processing thread");
+        while (mThreadRun) {
+            Bitmap bmp = null;
+
+            synchronized (this) {
+                try {
+                    this.wait();
+                    bmp = processFrame(mFrame);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+
+            if (bmp != null) {
+                Canvas canvas = mHolder.lockCanvas();
+                if (canvas != null) {
+                    canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
+                    mHolder.unlockCanvasAndPost(canvas);
+                }
+                bmp.recycle();
+            }
+        }
+    }
+}