From f63b29b1ecde50618e92c069fb04d8e0ae6e63ae Mon Sep 17 00:00:00 2001 From: pixel Date: Mon, 6 Jun 2005 11:16:14 +0000 Subject: Updated zlib, adding hashing functions, and introducing first bits of a new sliding window generic algorithm. --- lib/sliding-window.cpp | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 lib/sliding-window.cpp (limited to 'lib') diff --git a/lib/sliding-window.cpp b/lib/sliding-window.cpp new file mode 100644 index 0000000..88b616a --- /dev/null +++ b/lib/sliding-window.cpp @@ -0,0 +1,37 @@ +/* + * 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 + */ + +#include + +sliding_window::sliding_window(Uint32 _max_window, Uint32 _max_size) : + stack((Uint8 *) malloc(_max_size)), max_window(_max_window), max_size(_max_size), entries_recycle(remkroot(sizeof(struct sliding_window::entry_tree_t))), current_size(0) { + memset(root_entries, 0, 256 * sizeof(struct entry_tree_t)); +} + +sliding_window::~sliding_window() { + refree(entries_recycle); +} + +void sliding_window::push_byte(Uint8 b) { + struct entry_tree_t * e = (struct entry_tree_t *) renewx(entries_recycle); + + memset(e->hash, 0, 256 * sizeof(struct entry_tree_t *)); + +// e->offset = current_size++; +} -- cgit v1.2.3