1 files changed, 110 insertions, 0 deletions
diff --git a/src/jake2/qcommon/SZ.java b/src/jake2/qcommon/SZ.java
new file mode 100644
index 0000000..f17daa2
--- /dev/null
+++ b/src/jake2/qcommon/SZ.java
@@ -0,0 +1,110 @@
+/*
+ * SZ.java
+ * Copyright (C) 2003
+ * 
+ * $Id: SZ.java,v 1.1 2004-07-07 19:59:33 hzi Exp $
+ */
+/*
+Copyright (C) 1997-2001 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+package jake2.qcommon;
+
+import java.util.Arrays;
+
+import jake2.Defines;
+
+/**
+ * SZ
+ */
+public final class SZ {
+
+	public static void Clear(sizebuf_t buf) {
+		buf.clear();
+	}
+
+	//===========================================================================
+	
+	public static void Init(sizebuf_t buf, byte data[], int length) {
+		//memset (buf, 0, sizeof(*buf));
+		//TODO: slow but safe;
+		Arrays.fill(data,(byte)0);
+		buf.data = data;
+		buf.maxsize = length;
+	}
+
+
+	/** Ask for the pointer using sizebuf_t.cursize (RST) */
+	public static int GetSpace(sizebuf_t buf, int length) {
+		int oldsize;
+	
+		if (buf.cursize + length > buf.maxsize) {
+			if (!buf.allowoverflow)
+				Com.Error(Defines.ERR_FATAL, "SZ_GetSpace: overflow without allowoverflow set");
+	
+			if (length > buf.maxsize)
+				Com.Error(Defines.ERR_FATAL, "SZ_GetSpace: " + length + " is > full buffer size");
+	
+			Com.Printf("SZ_GetSpace: overflow\n");
+			Clear(buf);
+			buf.overflowed = true;
+		}
+	
+		oldsize = buf.cursize;
+		buf.cursize += length;
+	
+		return oldsize;
+	}
+
+	public static void Write(sizebuf_t buf, byte data[], int length) {
+		//memcpy(SZ_GetSpace(buf, length), data, length);
+		System.arraycopy(data, 0, buf.data, GetSpace(buf, length), length);
+	}
+
+	public static void Write(sizebuf_t buf, byte data[], int offset, int length) {
+		System.arraycopy(data, offset, buf.data, GetSpace(buf, length), length);
+	}
+
+	public static void Write(sizebuf_t buf, byte data[]) {
+		int length = data.length;
+		//memcpy(SZ_GetSpace(buf, length), data, length);
+		System.arraycopy(data, 0, buf.data, GetSpace(buf, length), length);
+	}
+
+	// 
+	public static void Print(sizebuf_t buf, String data) {
+		int length = data.length();
+		byte str[] = data.getBytes();
+	
+		if (buf.cursize != 0) {
+	
+			if (buf.data[buf.cursize - 1] != 0) {
+				//memcpy( SZ_GetSpace(buf, len), data, len); // no trailing 0
+				System.arraycopy(str, 0, buf.data, GetSpace(buf, length+1), length);
+			} else {
+				System.arraycopy(str, 0, buf.data, GetSpace(buf, length)-1, length);
+				//memcpy(SZ_GetSpace(buf, len - 1) - 1, data, len); // write over trailing 0
+			}
+		} else
+			// first print.
+			System.arraycopy(str, 0, buf.data, GetSpace(buf, length), length);
+		//memcpy(SZ_GetSpace(buf, len), data, len);
+		
+		buf.data[buf.cursize - 1]=0;
+	}
+}