FlipUtils.java

package com.aincc.libtest.activity.flip.internal;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.view.View;

/**
 * 
 * <h3><b>Utils</b></h3></br>
 * 
 * 플립 유틸리티
 * 
 * @author aincc@barusoft.com
 * @version 1.0.0
 * @since 1.0.0
 */
public class FlipUtils
{
	/**
	 * 텍스쳐 유효성 체크
	 * 
	 * @since 1.0.0
	 * @param t
	 * @return boolean
	 */
	public static boolean isValidTexture(Texture t)
	{
		return t != null && !t.isDestroyed();
	}

	/**
	 * 뷰의 스크린샷 생성
	 * 
	 * @since 1.0.0
	 * @param view
	 * @return bitmap
	 */
	public static Bitmap takeScreenShot(View view)
	{
		if (null == view)
		{
			return null;
		}

		assert view.getWidth() > 0 && view.getHeight() > 0;
		Bitmap.Config config = Bitmap.Config.ARGB_8888;

		Bitmap bitmap = null;
		try
		{
			bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), config);
			Canvas canvas = new Canvas(bitmap);
			view.draw(canvas);
		}
		catch (OutOfMemoryError e)
		{
			e.printStackTrace();
		}

		return bitmap;
	}

	/**
	 * degree to radian 변환
	 * 
	 * @since 1.0.0
	 * @param degree
	 * @return the radian
	 */
	public static float d2r(float degree)
	{
		return degree * (float) Math.PI / 180f;
	}

	/**
	 * 
	 * @since 1.0.0
	 * @param v
	 * @return the FloatBuffer
	 */
	public static FloatBuffer toFloatBuffer(float[] v)
	{
		ByteBuffer buf = ByteBuffer.allocateDirect(v.length * 4);
		buf.order(ByteOrder.nativeOrder());
		FloatBuffer buffer = buf.asFloatBuffer();
		buffer.put(v);
		buffer.position(0);
		return buffer;
	}

	/**
	 * 
	 * @since 1.0.0
	 * @param v
	 * @return the ShortBuffer
	 */
	public static ShortBuffer toShortBuffer(short[] v)
	{
		ByteBuffer buf = ByteBuffer.allocateDirect(v.length * 2);
		buf.order(ByteOrder.nativeOrder());
		ShortBuffer buffer = buf.asShortBuffer();
		buffer.put(v);
		buffer.position(0);
		return buffer;
	}
}