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+/*
+ * PSX-Tools Bundle Pack
+ * Copyright (C) 2002-2005 Nicolas "Pixel" Noble
+ *
+ * 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
+ */
+
+#ifndef __SLIDING_WINDOW_H__
+#define __SLIDING_WINDOW_H__
+
+#include <Exceptions.h>
+#include <recycle.h>
+
+class sliding_window : public Base {
+ public:
+ struct entry_tree_t;
+ struct d_list_t {
+ struct entry_t * p;
+ struct d_list_t * next;
+ };
+ struct distance_t {
+ Uint32 d;
+ struct d_list_t * entries;
+ };
+ struct entry_tree_t {
+ struct entry_tree_t * hash[256];
+ struct distance_t * d;
+ };
+ sliding_window(Uint32 max_window, Uint32 max_size);
+ virtual ~sliding_window();
+ void push_byte(Uint8);
+ void push_bytes(Uint8 *, Uint32 size);
+ private:
+ struct entry_tree_t * root_entries[256];
+ Uint8 * stack;
+ Uint32 max_window;
+ Uint32 max_size;
+ reroot * entries_recycle;
+ Uint32 current_size;
+};
+
+#endif