From 124f869faae3a0f75a3825e6a8e195c17f3c626a Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Thu, 16 Oct 2014 23:34:20 +0400
Subject: initial for idea

---
 .../com/github/junrar/unpack/ppm/SEE2Context.java  | 102 +++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 org.fox.ttcomics/src/main/java/com/github/junrar/unpack/ppm/SEE2Context.java

(limited to 'org.fox.ttcomics/src/main/java/com/github/junrar/unpack/ppm/SEE2Context.java')

diff --git a/org.fox.ttcomics/src/main/java/com/github/junrar/unpack/ppm/SEE2Context.java b/org.fox.ttcomics/src/main/java/com/github/junrar/unpack/ppm/SEE2Context.java
new file mode 100644
index 0000000..1f42419
--- /dev/null
+++ b/org.fox.ttcomics/src/main/java/com/github/junrar/unpack/ppm/SEE2Context.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2007 innoSysTec (R) GmbH, Germany. All rights reserved.
+ * Original author: Edmund Wagner
+ * Creation date: 31.05.2007
+ *
+ * Source: $HeadURL$
+ * Last changed: $LastChangedDate$
+ * 
+ * the unrar licence applies to all junrar source and binary distributions 
+ * you are not allowed to use this source to re-create the RAR compression algorithm
+ * 
+ * Here some html entities which can be used for escaping javadoc tags:
+ * "&":  "&#038;" or "&amp;"
+ * "<":  "&#060;" or "&lt;"
+ * ">":  "&#062;" or "&gt;"
+ * "@":  "&#064;" 
+ */
+package com.github.junrar.unpack.ppm;
+
+/**
+ * DOCUMENT ME
+ * 
+ * @author $LastChangedBy$
+ * @version $LastChangedRevision$
+ */
+public class SEE2Context {
+	public static final int size = 4;
+	
+    // ushort Summ;
+	private int summ;
+
+    // byte Shift;
+	private int shift;
+
+    // byte Count;
+	private int count;
+
+	public void init(int initVal) {
+		shift = (ModelPPM.PERIOD_BITS - 4)&0xff;
+		summ = (initVal << shift)&0xffff;
+		count = 4;
+	}
+
+    public int getMean() {
+        int retVal = summ >>> shift;
+		summ -= retVal;
+		return retVal + ((retVal == 0) ? 1 : 0);
+	}
+
+	public void update() {
+		if (shift < ModelPPM.PERIOD_BITS && --count == 0) {
+			summ += summ;
+			count = (3 << shift++);
+		}
+        summ &= 0xffff;
+        count &= 0xff;
+        shift &= 0xff;
+	}
+
+	public int getCount() {
+		return count;
+	}
+
+	public void setCount(int count) {
+		this.count = count&0xff;
+	}
+
+	public int getShift() {
+		return shift;
+	}
+
+	public void setShift(int shift) {
+		this.shift = shift&0xff;
+	}
+
+	public int getSumm() {
+		return summ;
+	}
+
+	public void setSumm(int summ) {
+		this.summ = summ&0xffff;
+	}
+
+    public void incSumm(int dSumm) {
+        setSumm(getSumm() + dSumm);
+    }
+
+    public String toString() {
+        StringBuilder buffer = new StringBuilder();
+        buffer.append("SEE2Context[");
+        buffer.append("\n  size=");
+        buffer.append(size);
+        buffer.append("\n  summ=");
+        buffer.append(summ);
+        buffer.append("\n  shift=");
+        buffer.append(shift);
+        buffer.append("\n  count=");
+        buffer.append(count);
+        buffer.append("\n]");
+        return buffer.toString();
+    }
+}
-- 
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