Android RenderScript development problems

Question

I am trying to run my first RenderScript application. Yet I am having the following problems: First are the error messages:

Description Resource Path Location Type The constructor ScriptC_simplers(RenderScript, Resources, int) is undefined MainActivity.java /SimpleRS/src/com/benchmark/simplers line 57 Java Problem

The method forEach_root(Allocation, Allocation) in the type ScriptC_simplers is not applicable for the arguments (Allocation, Allocation) MainActivity.java /SimpleRS/src/com/benchmark/simplers line 60 Java Problem

I am using Eclipse ADT, the API level is 19.1.0

The R.java file and ScriptC_simplers.java have been successfully generated. Here is the MainActivity file:

package com.benchmark.simplers;


import android.app.Activity;
import android.os.Bundle;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.renderscript.Allocation;
import android.renderscript.RenderScript;
import android.renderscript.ScriptC;
import android.widget.ImageView;

import android.support.v8.renderscript.*;


public class MainActivity extends Activity {
private Bitmap mBitmapIn;
private Bitmap mBitmapOut;


private RenderScript mRS;
private Allocation mInAllocation;
private Allocation mOutAllocation;
private ScriptC_simplers mScript;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mBitmapIn = loadBitmap(R.drawable.android);
    mBitmapOut = Bitmap.createBitmap(
    mBitmapIn.getWidth(), mBitmapIn.getHeight(), mBitmapIn.getConfig());
    ImageView in = (ImageView) findViewById(R.id.displayin);
    in.setImageBitmap(mBitmapIn);


    ImageView out = (ImageView) findViewById(R.id.displayout);
    out.setImageBitmap(mBitmapOut);


    createScript();
}

private void createScript() {
    mRS = RenderScript.create(this);


    mInAllocation = Allocation.createFromBitmap(mRS, mBitmapIn,
    Allocation.MipmapControl.MIPMAP_NONE,
    Allocation.USAGE_SCRIPT);
    mOutAllocation = Allocation.createTyped(mRS, mInAllocation.getType());


    mScript = new ScriptC_simplers(mRS, getResources(), R.raw.simplers);


    mScript.forEach_root(mInAllocation, mOutAllocation);
    mOutAllocation.copyTo(mBitmapOut);
}

private Bitmap loadBitmap(int resource) {
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inPreferredConfig = Bitmap.Config.ARGB_8888;
    return BitmapFactory.decodeResource(getResources(), resource, options);
}

}

Here is simplers.rs file:

#pragma version(1)
#pragma rs java_package_name(com.benchmark.simplers)


const static float3 gMonoMult = {0.299f, 0.587f, 0.114f};


void root(const uchar4 *v_in, uchar4 *v_out) {
    float4 f4 = rsUnpackColor8888(*v_in);
    float3 mono = dot(f4.rgb, gMonoMult);
    *v_out = rsPackColorTo8888(mono);
}

In the generated file ScriptC_simplers.java, I can see the constructor:

public  ScriptC_simplers(RenderScript rs, Resources resources, int id) {
    super(rs, resources, id);
    __U8_4 = Element.U8_4(rs);
}

I just do not know why ADT cannot find the constructor. If you know solutions, please help me, thank u!

Stephen Hines Stephen Hines · Accepted Answer · 2014-10-21T21:03:29

You are mixing android.renderscript.* and android.support.v8.renderscript.*, which is not allowed. You end up importing two different versions of "Allocation", so you are likely not getting the one you intended. Are you trying to get a simple RS application to work using regular RS or the support library version? Remove one of those sets of imports and see if that changes the behavior.

Android RenderScript development problems

1 Answers