Large matrix test

#

# Copyright (C) 2012 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.

#

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := tests

LOCAL_SRC_FILES := $(call all-java-files-under, src) \

                   $(call all-renderscript-files-under, src)

LOCAL_PACKAGE_NAME := LargeMatrix

include $(BUILD_PACKAGE)

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.android.rs.matrix">

    <uses-sdk android:minSdkVersion="16" />

    <application android:label="Large Matrix"

                 android:hardwareAccelerated="true">

        <activity android:name="MatrixActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

/*

 * Copyright (C) 2012 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.android.rs.matrix;

import java.lang.Math;

import android.app.Activity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.os.Bundle;

import android.renderscript.*;

import android.util.Log;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.view.View;

import android.widget.ImageView;

import android.widget.SeekBar;

import android.widget.TextView;

public class MatrixActivity extends Activity {

    private RenderScript mRS;

    private ScriptC_large_matrix mScript;

    private Allocation mVectorIn;

    private Allocation mVectorOut;

    private Allocation mMatrix;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        mRS = RenderScript.create(this);

        Type.Builder tb = new Type.Builder(mRS, Element.F32_4(mRS));

        tb.setX(2000);

        tb.setY(500);

        Type t = tb.create();

        mMatrix = Allocation.createTyped(mRS, t);

        mVectorIn = Allocation.createSized(mRS, Element.F32_4(mRS), 500);

        mVectorOut = Allocation.createSized(mRS, Element.F32_4(mRS), 500);

        mScript = new ScriptC_large_matrix(mRS, getResources(), R.raw.large_matrix);

        mScript.set_gMatrix(mMatrix);

        mRS.finish();

        long dt = java.lang.System.currentTimeMillis();

        for (int i=0; i<100; i++) {

            mScript.forEach_multiply_row(mVectorIn, mVectorOut);

        }

        mRS.finish();

        dt = (java.lang.System.currentTimeMillis() - dt);

        Log.v("rs", "LargeMatrix  mult time ms " + dt);

        float gflop = 2000.f * 2000.f * 2.f / dt / 1000000.f;

        gflop *= 100;

        Log.v("rs", "LargeMatrix  gflop " + gflop);

    }

}

/*

 * Copyright (C) 2012 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.android.rs.matrix)

rs_allocation gMatrix;

void multiply_row(const float4 *in, float4 *out, uint32_t x) {

    uint32_t dimX = rsAllocationGetDimX(gMatrix);

    const float4 *m = (const float4 *)rsGetElementAt(gMatrix, 0, x);

    float4 sum = m[0] * in[0];

    for(uint32_t ct=1; ct < dimX; ct++) {

        sum += m[ct] * in[0];

    }

    *out = sum;

}