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+/**
+ * Copyright 2014 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.common.util;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.common.nio.Buffers;
+import com.jogamp.junit.util.JunitTracer;
+
+import static com.jogamp.common.util.BitstreamData.*;
+
+import org.junit.FixMethodOrder;
+import org.junit.runners.MethodSorters;
+
+/**
+ * Test {@link Bitstream} w/ int8 read/write access w/ semantics
+ * as well as with aligned and unaligned access.
+ * <ul>
+ * <li>{@link Bitstream#readInt8(boolean, boolean)}</li>
+ * <li>{@link Bitstream#writeInt8(boolean, boolean, byte)}</li>
+ * </ul>
+ */
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestBitstream02 extends JunitTracer {
+
+ @Test
+ public void test01Int8BitsAligned() throws IOException {
+ test01Int8BitsAlignedImpl((byte)0);
+ test01Int8BitsAlignedImpl((byte)1);
+ test01Int8BitsAlignedImpl((byte)7);
+ test01Int8BitsAlignedImpl(Byte.MIN_VALUE);
+ test01Int8BitsAlignedImpl(Byte.MAX_VALUE);
+ test01Int8BitsAlignedImpl((byte)0xff);
+ }
+ void test01Int8BitsAlignedImpl(byte val8) throws IOException {
+ // Test with buffer defined value
+ final ByteBuffer bb = ByteBuffer.allocate(Buffers.SIZEOF_BYTE);
+ System.err.println("XXX Test01Int8BitsAligned: value "+val8+", "+toHexBinaryString(val8, 8));
+ bb.put(0, val8);
+
+ final Bitstream.ByteBufferStream bbs = new Bitstream.ByteBufferStream(bb);
+ final Bitstream<ByteBuffer> bs = new Bitstream<ByteBuffer>(bbs, false /* outputMode */);
+ {
+ final byte r8 = (byte) bs.readInt8(true /* msbFirst */);
+ System.err.println("Read8.1 "+r8+", "+toHexBinaryString(r8, 8));
+ Assert.assertEquals(val8, r8);
+ }
+
+ // Test with written bitstream value
+ bs.setStream(bs.getSubStream(), true /* outputMode */);
+ bs.writeInt8(true /* msbFirst */, val8);
+ bs.setStream(bs.getSubStream(), false /* outputMode */); // switch to input-mode, implies flush()
+ {
+ final byte r8 = (byte) bs.readInt8(true /* msbFirst */);
+ System.err.println("Read8.2 "+r8+", "+toHexBinaryString(r8, 8));
+ Assert.assertEquals(val8, r8);
+ }
+ }
+
+ @Test
+ public void test02Int8BitsUnaligned() throws IOException {
+ test02Int8BitsUnalignedImpl(0);
+ test02Int8BitsUnalignedImpl(1);
+ test02Int8BitsUnalignedImpl(7);
+ test02Int8BitsUnalignedImpl(8);
+ test02Int8BitsUnalignedImpl(15);
+ test02Int8BitsUnalignedImpl(24);
+ test02Int8BitsUnalignedImpl(25);
+ }
+ void test02Int8BitsUnalignedImpl(final int preBits) throws IOException {
+ test02Int8BitsUnalignedImpl(preBits, (byte)0);
+ test02Int8BitsUnalignedImpl(preBits, (byte)1);
+ test02Int8BitsUnalignedImpl(preBits, (byte)7);
+ test02Int8BitsUnalignedImpl(preBits, Byte.MIN_VALUE);
+ test02Int8BitsUnalignedImpl(preBits, Byte.MAX_VALUE);
+ test02Int8BitsUnalignedImpl(preBits, (byte)0xff);
+ }
+ void test02Int8BitsUnalignedImpl(int preBits, byte val8) throws IOException {
+ final int preBytes = ( preBits + 7 ) >>> 3;
+ final int byteCount = preBytes + Buffers.SIZEOF_BYTE;
+ final ByteBuffer bb = ByteBuffer.allocate(byteCount);
+ System.err.println("XXX Test02Int8BitsUnaligned: preBits "+preBits+", value "+val8+", "+toHexBinaryString(val8, 8));
+
+ // Test with written bitstream value
+ final Bitstream.ByteBufferStream bbs = new Bitstream.ByteBufferStream(bb);
+ final Bitstream<ByteBuffer> bs = new Bitstream<ByteBuffer>(bbs, true /* outputMode */);
+ bs.writeBits31(true /* msbFirst */, preBits, 0);
+ bs.writeInt8(true /* msbFirst */, val8);
+ bs.setStream(bs.getSubStream(), false /* outputMode */); // switch to input-mode, implies flush()
+
+ final int rPre = (short) bs.readBits31(true /* msbFirst */, preBits);
+ final byte r8 = (byte) bs.readInt8(true /* msbFirst */);
+ System.err.println("ReadPre "+rPre+", "+toBinaryString(rPre, preBits));
+ System.err.println("Read8 "+r8+", "+toHexBinaryString(r8, 8));
+ Assert.assertEquals(val8, r8);
+ }
+
+ public static void main(String args[]) throws IOException {
+ String tstname = TestBitstream02.class.getName();
+ org.junit.runner.JUnitCore.main(tstname);
+ }
+
+}