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Commit 02bd3636 authored by Jason Sams's avatar Jason Sams
Browse files

Add mandelbrot to compute perf

Change-Id: I8217134a703fcd72f6c9a3bdd4e2a6b389ea0fd3
parent be3ffd56
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@@ -27,6 +27,7 @@ import android.widget.ImageView;
public class ComputePerf extends Activity {

    private LaunchTest mLT;
    private Mandelbrot mMandel;
    private RenderScript mRS;

    @Override
@@ -38,6 +39,10 @@ public class ComputePerf extends Activity {
        mLT = new LaunchTest(mRS, getResources());
        mLT.run();
        mLT.run();

        mMandel = new Mandelbrot(mRS, getResources());
        mMandel.run();

    }

}
+45 −0
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/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.rs.computeperf;

import android.content.res.Resources;
import android.renderscript.*;

public class Mandelbrot implements Runnable {
    private RenderScript mRS;
    private Allocation mAllocationXY;
    private ScriptC_mandelbrot mScript;

    Mandelbrot(RenderScript rs, Resources res) {
        mRS = rs;
        mScript = new ScriptC_mandelbrot(mRS, res, R.raw.mandelbrot);

        Type.Builder tb = new Type.Builder(rs, Element.U8_4(rs));
        tb.setX(mScript.get_gDimX());
        tb.setY(mScript.get_gDimY());
        mAllocationXY = Allocation.createTyped(rs, tb.create());
    }

    public void run() {
        long t = java.lang.System.currentTimeMillis();
        mScript.forEach_root(mAllocationXY);
        mRS.finish();
        t = java.lang.System.currentTimeMillis() - t;
        android.util.Log.v("ComputePerf", "mandelbrot  ms " + t);
    }

}
+42 −0
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// Copyright (C) 2011 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma version(1)
#pragma rs java_package_name(com.example.android.rs.computeperf)

const int gMaxIteration = 500;
const int gDimX = 1024;
const int gDimY = 1024;

void root(uchar4 *v_out, uint32_t x, uint32_t y) {
    float2 p;
    p.x = -2.5f + ((float)x / gDimX) * 3.5f;
    p.y = -1.f + ((float)y / gDimY) * 2.f;

    float2 t = 0;
    int iteration = 0;
    while((t.x*t.x + t.y*t.y < 4.f) && (iteration < gMaxIteration)) {
        float2 t2 = t * t;
        float xtemp = t2.x - t2.y + p.x;
        t.y = 2 * t.x * t.y + p.y;
        t.x = xtemp;
        iteration++;
    }

    if(iteration >= gMaxIteration) {
        *v_out = 0;
    } else {
        *v_out = (uchar4){iteration & 0xff, (iteration >> 6) & 0xff, 0x8f, 0xff};
    }
}