/*
* Copyright (C) 2009 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.almalence.util;
/**
* Collection of utility functions used in this package.
*/
public class HeapUtil
{
/**
* Return information about native heap memory:
*
* [0] = megabytes used [1] = megabytes free
*/
public static native int[] getMemoryInfo();
//Method based on similar method from AugmentedPanorama plugin.
public static long getAmountOfMemoryToFitFrames()
{
// activityManager returning crap (way less than really available)
final int[] mi = HeapUtil.getMemoryInfo();
//Log.e(TAG, "Memory: used: " + mi[0] + "Mb free: " + mi[1] + "Mb");
return (long) ((mi[1] - 10.f) * 1000000.f * 0.6f); // use up to 60% and
// ensure at least
// 64Mb left free
}
public static int getRAWFrameSizeInBytes(int width, int height)
{
return (2 * width * height);
}
static
{
System.loadLibrary("utils-image");
System.loadLibrary("utils-jni");
}
}