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package com.andraskindler.sandbox.activity;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.support.v8.renderscript.Allocation;
import android.support.v8.renderscript.RenderScript;
import android.widget.FrameLayout;
import android.widget.ImageView;
import com.andraskindler.sandbox.R;
import com.andraskindler.sandbox.ScriptC_dim;
import hugo.weaving.DebugLog;
import rx.Observable;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
public class RenderScriptActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final FrameLayout root = (FrameLayout) getLayoutInflater().inflate(R.layout.activity_main, null);
setContentView(root);
final ImageView imageView = (ImageView) root.findViewById(R.id.iv_main);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.test_image);
dimWithRenderScript(bitmap).subscribe(new Action1<Bitmap>() {
@Override public void call(Bitmap bitmap) {
imageView.setImageBitmap(bitmap);
}
});
}
@DebugLog
private Observable<Bitmap> dimWithRenderScript(final Bitmap in) {
return Observable.create(new Observable.OnSubscribe<Bitmap>() {
@Override public void call(Subscriber<? super Bitmap> subscriber) {
final RenderScript renderScript = RenderScript.create(RenderScriptActivity.this);
final ScriptC_dim script = new ScriptC_dim(renderScript);
script.set_dimmingValue(0.6f);
final Allocation alloc1 = Allocation.createFromBitmap(renderScript, in, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
final Allocation alloc2 = Allocation.createTyped(renderScript, alloc1.getType());
script.forEach_dim(alloc1, alloc2);
alloc2.copyTo(in);
renderScript.destroy();
subscriber.onNext(in);
subscriber.onCompleted();
}
}).subscribeOn(AndroidSchedulers.mainThread());
}
}
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