1197 lines
26 KiB
C++
1197 lines
26 KiB
C++
/* Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See file, 'COPYING', for details.
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*/
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#include <common/cmdlib.hh>
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#include <common/log.hh>
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#include <common/threads.hh>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef WIN32
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#include <direct.h>
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#include <windows.h>
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#endif
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#ifdef LINUX
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#include <sys/time.h>
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#include <unistd.h>
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#include <string.h>
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#endif
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#include <stdint.h>
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#include <string>
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#define PATHSEPERATOR '/'
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/* set these before calling CheckParm */
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int myargc;
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char **myargv;
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char com_token[1024];
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qboolean com_eof;
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qboolean archive;
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char archivedir[1024];
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/*
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* =================
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* Error
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* For abnormal program terminations
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* =================
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*/
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[[noreturn]] void
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Error(const char *error, ...)
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{
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va_list argptr;
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/* Using lockless prints so we can error out while holding the lock */
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InterruptThreadProgress__();
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logprint_locked__("************ ERROR ************\n");
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va_start(argptr, error);
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logvprint(error, argptr);
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va_end(argptr);
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logprint_locked__("\n");
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exit(1);
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}
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/*
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* qdir will hold the path up to the base directory (basedir), including the
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* slash:
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* c:\quake\
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* /usr/local/games/quake/
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*
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* gamedir will hold qdir + the game directory (id1, hipnotic, etc).
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* SetQdirFromPath requires an input containing both the basedir and the
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* gamedir:
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* c:\quake\id1\somefile.dat
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* /usr/local/games/quake/id1/somefile.dat
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* or similar partials:
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* id1\somefile.dat
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* quake/id1/somefile.dat
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*
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*/
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char qdir[1024]; // c:/Quake/, c:/Hexen II/ etc.
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char gamedir[1024]; // c:/Quake/mymod/
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char basedir[1024]; //mxd. c:/Quake/ID1/, c:/Quake 2/BASEQ2/ etc.
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void //mxd
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string_replaceall(std::string& str, const std::string& from, const std::string& to)
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{
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if (from.empty()) return;
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size_t start_pos = 0;
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while ((start_pos = str.find(from, start_pos)) != std::string::npos) {
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str.replace(start_pos, from.length(), to);
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start_pos += to.length(); // In case 'to' contains 'from', like replacing 'x' with 'yx'
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}
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}
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bool //mxd
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string_iequals(const std::string& a, const std::string& b)
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{
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const auto sz = a.size();
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if (b.size() != sz) return false;
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for (unsigned int i = 0; i < sz; ++i)
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if (tolower(a[i]) != tolower(b[i]))
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return false;
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return true;
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}
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int //mxd. Returns offset in path to the next updir, sets dirname to the name of updir
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up_dir_pos(const std::string& path, std::string& dirname)
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{
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const int pos = path.rfind(PATHSEPERATOR);
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if (pos > -1) dirname = path.substr(pos + 1, path.size() - pos - 1);
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return pos;
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}
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int //mxd. Finds dirname in path and returns offset to it
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find_dir(const std::string& path, const std::string& dirname)
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{
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std::string cur_path { path };
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std::string cur_dir {};
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int pos = 0;
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while (pos != -1) {
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pos = up_dir_pos(cur_path, cur_dir);
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if (pos > -1) {
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if (string_iequals(cur_dir, dirname)) return pos;
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cur_path = cur_path.substr(0, pos);
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}
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}
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return pos;
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}
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bool //mxd
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dir_exists(const char *path)
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{
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struct stat buf{};
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return (stat(path, &buf) == 0 && buf.st_mode & S_IFDIR);
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}
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/**
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* It's possible to compile quake 1/hexen 2 maps without a qdir
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*/
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static void
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ClearQdir(void)
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{
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qdir[0] = '\0';
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gamedir[0] = '\0';
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basedir[0] = '\0';
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}
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void //mxd. Expects the path to contain "maps" folder
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SetQdirFromPath(const char *basedirname, const char *path)
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{
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char temp[1024];
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if (!(path[0] == PATHSEPERATOR || path[0] == '\\' || path[1] == ':')) {
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// path is partial
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Q_getwd(temp);
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strcat(temp, "/");
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strcat(temp, path);
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path = temp;
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}
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const std::string basedir_s { basedirname };
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std::string path_s{ path };
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string_replaceall(path_s, "\\", "/");
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int pos = find_dir(path_s, "maps");
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if (pos == -1) {
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logprint("SetQdirFromPath: no \"maps\" in '%s'", path);
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ClearQdir();
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return;
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}
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// Expect mod folder to be above "maps" folder
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path_s = path_s.substr(0, pos);
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strcpy(gamedir, (path_s + PATHSEPERATOR).c_str());
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logprint("gamedir: %s\n", gamedir);
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// See if it's the main game data folder (ID1 / baseq2 / data1 etc.)
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std::string gamename_s;
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pos = up_dir_pos(path_s, gamename_s);
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if (pos == -1) {
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logprint("SetQdirFromPath: invalid path: '%s'", path);
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ClearQdir();
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return;
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}
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// Not the main game data folder...
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if (!string_iequals(gamename_s, basedir_s)) {
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pos = 0;
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while (pos != -1) {
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const std::string checkpath_s = path_s + PATHSEPERATOR + basedir_s;
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if (dir_exists(checkpath_s.c_str())) {
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// Set basedir
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strcpy(basedir, (checkpath_s + PATHSEPERATOR).c_str());
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logprint("basedir: %s\n", basedir);
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break;
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}
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pos = up_dir_pos(path_s, gamename_s);
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path_s = path_s.substr(0, pos);
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}
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if (pos == -1) {
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logprint("SetQ2dirFromPath: failed to find %s in '%s'\n", basedir, path);
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ClearQdir();
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return;
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}
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// qdir is already in path_s
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} else {
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// Set basedir
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strcpy(basedir, (path_s + PATHSEPERATOR).c_str());
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logprint("basedir: %s\n", basedir);
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// qdir shound be 1 level above basedir
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pos = up_dir_pos(path_s, gamename_s);
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path_s = path_s.substr(0, pos);
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}
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// Store qdir...
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strcpy(qdir, (path_s + PATHSEPERATOR).c_str());
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logprint("qdir: %s\n", qdir);
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}
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char *
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ExpandPath(char *path)
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{
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static char full[1024];
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if (!qdir[0])
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Error("ExpandPath called without qdir set");
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if (path[0] == '/' || path[0] == '\\' || path[1] == ':')
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return path;
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sprintf(full, "%s%s", qdir, path);
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return full;
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}
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char *
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ExpandPathAndArchive(char *path)
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{
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char *expanded;
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char archivename[1024];
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expanded = ExpandPath(path);
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if (archive) {
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sprintf(archivename, "%s/%s", archivedir, path);
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Q_CopyFile(expanded, archivename);
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}
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return expanded;
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}
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char *
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copystring(const char *s)
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{
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char *b;
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b = static_cast<char *>(malloc(strlen(s) + 1));
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strcpy(b, s);
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return b;
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}
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/*
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* ================
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* I_FloatTime
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* ================
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*/
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double
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I_FloatTime(void)
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{
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#ifdef WIN32
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FILETIME ft;
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uint64_t hundred_ns;
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GetSystemTimeAsFileTime(&ft);
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hundred_ns = (((uint64_t)ft.dwHighDateTime) << 32) + ((uint64_t)ft.dwLowDateTime);
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return (double)hundred_ns / 10000000.0;
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#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return (double)tv.tv_sec + (tv.tv_usec / 1000000.0);
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#endif
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}
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void
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Q_getwd(char *out)
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{
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#ifdef WIN32
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_getcwd(out, 256);
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strcat(out, "\\");
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#else
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#ifdef LINUX
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char *pwd;
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int len;
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pwd = getenv("PWD");
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if (!pwd)
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Error("Couldn't get working directory - "
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"PWD not set in environment\n");
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len = strlen(pwd);
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if (len > 255)
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Error("Not enough space to hold working dir\n");
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strcpy(out, pwd);
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#else
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getwd(out);
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#endif
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#endif
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}
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void
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Q_mkdir(const char *path)
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{
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#ifdef WIN32
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if (_mkdir(path) != -1)
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return;
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#else
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if (mkdir(path, 0777) != -1)
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return;
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#endif
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if (errno != EEXIST)
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Error("mkdir %s: %s", path, strerror(errno));
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}
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/*
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* ============
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* FileTime
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* returns -1 if not present
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* ============
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*/
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int
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FileTime(const char *path)
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{
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struct stat buf;
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if (stat(path, &buf) == -1)
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return -1;
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return buf.st_mtime;
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}
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/*
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* ==============
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* COM_Parse
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* Parse a token out of a string
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* ==============
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*/
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const char *
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COM_Parse(const char *data)
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{
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int c;
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int len;
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len = 0;
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com_token[0] = 0;
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if (!data)
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return NULL;
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/* skip whitespace */
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skipwhite:
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while ((c = *data) <= ' ') {
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if (c == 0) {
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com_eof = true;
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return NULL; /* end of file; */
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}
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data++;
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}
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/* skip // (double forward slash) comments */
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if (c == '/' && data[1] == '/') {
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while (*data && *data != '\n')
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data++;
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goto skipwhite;
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}
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/* skip C-style comments */
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if (c == '/' && data[1] == '*') {
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data += 2;
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while (*data && !(*data == '*' && data[1] == '/'))
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data++;
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if (*data)
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data += 2;
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goto skipwhite;
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}
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/* handle quoted strings specially */
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if (c == '\"') {
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data++;
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do {
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c = *data;
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if (c)
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data++;
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if (c == '\"') {
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com_token[len] = 0;
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return data;
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}
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com_token[len] = c;
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len++;
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} while (1);
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}
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/* parse single characters */
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if (c == '{' || c == '}' || c == ')' || c == '(' || c == '\'' || c == ':') {
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com_token[len] = c;
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len++;
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com_token[len] = 0;
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return data + 1;
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}
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/* parse a regular word */
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do {
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com_token[len] = c;
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data++;
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len++;
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c = *data;
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if (c == '{' || c == '}' || c == ')' || c == '(' || c == '\''
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|| c == ':')
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break;
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} while (c > 32);
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com_token[len] = 0;
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return data;
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}
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|
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int
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Q_strncasecmp(const char *s1, const char *s2, int n)
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{
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int c1, c2;
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while (1) {
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c1 = *s1++;
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c2 = *s2++;
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if (!n--)
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return 0; /* strings are equal until end point */
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if (c1 != c2) {
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if (c1 >= 'a' && c1 <= 'z')
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c1 -= ('a' - 'A');
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if (c2 >= 'a' && c2 <= 'z')
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c2 -= ('a' - 'A');
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if (c1 != c2)
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return -1; /* strings not equal */
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}
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if (!c1)
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return 0; /* strings are equal */
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}
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return -1;
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}
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|
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int
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Q_strcasecmp(const char *s1, const char *s2)
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{
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return Q_strncasecmp(s1, s2, 99999);
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}
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|
|
char *
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Q_strupr(char *start)
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|
{
|
|
char *in;
|
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|
|
in = start;
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while (*in) {
|
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*in = toupper(*in);
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in++;
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}
|
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return start;
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}
|
|
|
|
char *
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|
Q_strlower(char *start)
|
|
{
|
|
char *in;
|
|
|
|
in = start;
|
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while (*in) {
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*in = tolower(*in);
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in++;
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}
|
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return start;
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}
|
|
|
|
|
|
/* ============================================================================
|
|
* MISC FUNCTIONS
|
|
* ============================================================================
|
|
*/
|
|
|
|
/*
|
|
* =================
|
|
* CheckParm
|
|
* Checks for the given parameter in the program's command line arguments
|
|
* Returns the argument number (1 to argc-1) or 0 if not present
|
|
* =================
|
|
*/
|
|
int
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|
CheckParm(const char *check)
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|
{
|
|
int i;
|
|
|
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for (i = 1; i < myargc; i++) {
|
|
if (!Q_strcasecmp(check, myargv[i]))
|
|
return i;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* ===========
|
|
* filelength
|
|
* ===========
|
|
*/
|
|
int
|
|
Sys_filelength(FILE *f)
|
|
{
|
|
int pos;
|
|
int end;
|
|
|
|
pos = ftell(f);
|
|
fseek(f, 0, SEEK_END);
|
|
end = ftell(f);
|
|
fseek(f, pos, SEEK_SET);
|
|
|
|
return end;
|
|
}
|
|
|
|
FILE *
|
|
SafeOpenWrite(const char *filename)
|
|
{
|
|
FILE *f;
|
|
|
|
f = fopen(filename, "wb");
|
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|
|
if (!f)
|
|
Error("Error opening %s: %s", filename, strerror(errno));
|
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|
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return f;
|
|
}
|
|
|
|
FILE *
|
|
SafeOpenRead(const char *filename)
|
|
{
|
|
FILE *f;
|
|
|
|
f = fopen(filename, "rb");
|
|
|
|
if (!f)
|
|
Error("Error opening %s: %s", filename, strerror(errno));
|
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|
|
return f;
|
|
}
|
|
|
|
void
|
|
SafeRead(FILE *f, void *buffer, int count)
|
|
{
|
|
if (fread(buffer, 1, count, f) != (size_t) count)
|
|
Error("File read failure");
|
|
}
|
|
|
|
void
|
|
SafeWrite(FILE *f, const void *buffer, int count)
|
|
{
|
|
const size_t written = fwrite(buffer, 1, count, f);
|
|
if (written != (size_t) count)
|
|
Error("File write failure");
|
|
}
|
|
|
|
typedef struct {
|
|
char magic[4];
|
|
unsigned int tableofs;
|
|
unsigned int numfiles;
|
|
} pakheader_t;
|
|
typedef struct {
|
|
char name[56];
|
|
unsigned int offset;
|
|
unsigned int length;
|
|
} pakfile_t;
|
|
|
|
/*
|
|
* ==============
|
|
* LoadFilePak
|
|
* reads a file directly out of a pak, to make re-lighting friendlier
|
|
* writes to the filename, stripping the pak part of the name
|
|
* ==============
|
|
*/
|
|
int
|
|
LoadFilePak(char *filename, void *destptr)
|
|
{
|
|
uint8_t **bufferptr = static_cast<uint8_t **>(destptr);
|
|
uint8_t *buffer;
|
|
FILE *file;
|
|
int length;
|
|
char *e = NULL;
|
|
|
|
file = fopen(filename, "rb");
|
|
if (!file)
|
|
{
|
|
e = filename + strlen(filename);
|
|
for( ; e>filename ; )
|
|
{
|
|
while(e > filename)
|
|
if (*--e == '/')
|
|
break;
|
|
if (*e == '/')
|
|
{
|
|
*e = 0;
|
|
file = fopen(filename, "rb");
|
|
if (file)
|
|
{
|
|
uint8_t **bufferptr = static_cast<uint8_t **>(destptr);
|
|
pakheader_t header;
|
|
unsigned int i;
|
|
const char *innerfile = e+1;
|
|
length = -1;
|
|
SafeRead(file, &header, sizeof(header));
|
|
|
|
header.numfiles = LittleLong(header.numfiles) / sizeof(pakfile_t);
|
|
header.tableofs = LittleLong(header.tableofs);
|
|
|
|
if (!strncmp(header.magic, "PACK", 4))
|
|
{
|
|
pakfile_t *files = static_cast<pakfile_t *>(malloc(header.numfiles * sizeof(*files)));
|
|
// printf("%s: %u files\n", pakfilename, header.numfiles);
|
|
fseek(file, header.tableofs, SEEK_SET);
|
|
SafeRead(file, files, header.numfiles * sizeof(*files));
|
|
|
|
for (i = 0; i < header.numfiles; i++)
|
|
{
|
|
if (!strcmp(files[i].name, innerfile))
|
|
{
|
|
fseek(file, files[i].offset, SEEK_SET);
|
|
*bufferptr = static_cast<uint8_t*>(malloc(files[i].length + 1));
|
|
SafeRead(file, *bufferptr, files[i].length);
|
|
length = files[i].length;
|
|
break;
|
|
}
|
|
}
|
|
free(files);
|
|
}
|
|
|
|
fclose(file);
|
|
if (length < 0)
|
|
Error("Unable to find %s inside %s", innerfile, filename);
|
|
|
|
while(e > filename)
|
|
if (*--e == '/')
|
|
{
|
|
strcpy(e+1, innerfile);
|
|
return length;
|
|
}
|
|
strcpy(filename, innerfile);
|
|
return length;
|
|
}
|
|
*e = '/';
|
|
}
|
|
}
|
|
Error("Error opening %s: %s", filename, strerror(errno));
|
|
}
|
|
|
|
|
|
file = SafeOpenRead(filename);
|
|
length = Sys_filelength(file);
|
|
buffer = *bufferptr = static_cast<uint8_t*>(malloc(length + 1));
|
|
if (!buffer)
|
|
Error("%s: allocation of %i bytes failed.", __func__, length);
|
|
|
|
SafeRead(file, buffer, length);
|
|
fclose(file);
|
|
buffer[length] = 0;
|
|
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
* ==============
|
|
* LoadFile
|
|
* ==============
|
|
*/
|
|
int
|
|
LoadFile(const char *filename, void *destptr)
|
|
{
|
|
uint8_t **bufferptr = static_cast<uint8_t**>(destptr);
|
|
uint8_t *buffer;
|
|
FILE *file;
|
|
int length;
|
|
|
|
file = SafeOpenRead(filename);
|
|
length = Sys_filelength(file);
|
|
buffer = *bufferptr = static_cast<uint8_t*>(malloc(length + 1));
|
|
if (!buffer)
|
|
Error("%s: allocation of %i bytes failed.", __func__, length);
|
|
|
|
SafeRead(file, buffer, length);
|
|
fclose(file);
|
|
buffer[length] = 0;
|
|
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
* ==============
|
|
* SaveFile
|
|
* ==============
|
|
*/
|
|
void
|
|
SaveFile(const char *filename, const void *buffer, int count)
|
|
{
|
|
FILE *f;
|
|
|
|
f = SafeOpenWrite(filename);
|
|
SafeWrite(f, buffer, count);
|
|
fclose(f);
|
|
}
|
|
|
|
void
|
|
DefaultExtension(char *path, const char *extension)
|
|
{
|
|
char *src;
|
|
|
|
/* if path doesn't have a .EXT, append extension */
|
|
/* (extension should include the .) */
|
|
src = path + strlen(path) - 1;
|
|
|
|
while (*src != PATHSEPERATOR && src != path) {
|
|
if (*src == '.')
|
|
return; /* it has an extension */
|
|
src--;
|
|
}
|
|
|
|
strcat(path, extension);
|
|
}
|
|
|
|
void
|
|
DefaultPath(char *path, const char *basepath)
|
|
{
|
|
char temp[128];
|
|
|
|
if (path[0] == PATHSEPERATOR)
|
|
return; /* absolute path location */
|
|
strcpy(temp, path);
|
|
strcpy(path, basepath);
|
|
strcat(path, temp);
|
|
}
|
|
|
|
std::string
|
|
StrippedFilename(const std::string& path)
|
|
{
|
|
const size_t lastSlash = path.rfind(PATHSEPERATOR);
|
|
if (lastSlash == std::string::npos) {
|
|
return std::string();
|
|
}
|
|
// excludes the trailing slash
|
|
return path.substr(0, lastSlash);
|
|
}
|
|
|
|
void
|
|
StripExtension(char *path)
|
|
{
|
|
int length;
|
|
|
|
length = strlen(path) - 1;
|
|
while (length > 0 && path[length] != '.') {
|
|
length--;
|
|
if (path[length] == '/')
|
|
return; /* no extension */
|
|
}
|
|
if (length)
|
|
path[length] = 0;
|
|
}
|
|
|
|
std::string
|
|
StrippedExtension(const std::string& path) {
|
|
std::string result = path;
|
|
|
|
int length;
|
|
length = static_cast<int>(path.size()) - 1;
|
|
while (length > 0 && path[length] != '.') {
|
|
length--;
|
|
if (path[length] == '/')
|
|
return path; /* no extension */
|
|
}
|
|
if (length)
|
|
result = result.substr(0, static_cast<size_t>(length - 1));
|
|
|
|
return result;
|
|
}
|
|
|
|
int
|
|
IsAbsolutePath(const char *path)
|
|
{
|
|
return path[0] == PATHSEPERATOR || (isalpha(path[0]) && path[1] == ':');
|
|
}
|
|
|
|
/*
|
|
* ====================
|
|
* Extract file parts
|
|
* ====================
|
|
*/
|
|
void
|
|
ExtractFilePath(char *path, char *dest)
|
|
{
|
|
char *src;
|
|
|
|
src = path + strlen(path) - 1;
|
|
|
|
/* back up until a \ or the start */
|
|
while (src != path && *(src - 1) != PATHSEPERATOR)
|
|
src--;
|
|
|
|
memcpy(dest, path, src - path);
|
|
dest[src - path] = 0;
|
|
}
|
|
|
|
void
|
|
ExtractFileBase(char *path, char *dest)
|
|
{
|
|
char *src;
|
|
|
|
src = path + strlen(path) - 1;
|
|
|
|
/* back up until a \ or the start */
|
|
while (src != path && *(src - 1) != PATHSEPERATOR)
|
|
src--;
|
|
|
|
while (*src && *src != '.') {
|
|
*dest++ = *src++;
|
|
}
|
|
*dest = 0;
|
|
}
|
|
|
|
void
|
|
ExtractFileExtension(char *path, char *dest)
|
|
{
|
|
char *src;
|
|
|
|
src = path + strlen(path) - 1;
|
|
|
|
/* back up until a . or the start */
|
|
while (src != path && *(src - 1) != '.')
|
|
src--;
|
|
if (src == path) {
|
|
*dest = 0; /* no extension */
|
|
return;
|
|
}
|
|
|
|
strcpy(dest, src);
|
|
}
|
|
|
|
/*
|
|
* ==============
|
|
* ParseNum / ParseHex
|
|
* ==============
|
|
*/
|
|
int
|
|
ParseHex(char *hex)
|
|
{
|
|
char *str;
|
|
int num;
|
|
|
|
num = 0;
|
|
str = hex;
|
|
|
|
while (*str) {
|
|
num <<= 4;
|
|
if (*str >= '0' && *str <= '9')
|
|
num += *str - '0';
|
|
else if (*str >= 'a' && *str <= 'f')
|
|
num += 10 + *str - 'a';
|
|
else if (*str >= 'A' && *str <= 'F')
|
|
num += 10 + *str - 'A';
|
|
else
|
|
Error("Bad hex number: %s", hex);
|
|
str++;
|
|
}
|
|
|
|
return num;
|
|
}
|
|
|
|
int
|
|
ParseNum(char *str)
|
|
{
|
|
if (str[0] == '$')
|
|
return ParseHex(str + 1);
|
|
if (str[0] == '0' && str[1] == 'x')
|
|
return ParseHex(str + 2);
|
|
return atol(str);
|
|
}
|
|
|
|
|
|
/*
|
|
* ============================================================================
|
|
* BYTE ORDER FUNCTIONS
|
|
* ============================================================================
|
|
*/
|
|
|
|
#ifdef _SGI_SOURCE
|
|
#define __BIG_ENDIAN__
|
|
#endif
|
|
|
|
#ifdef __BIG_ENDIAN__
|
|
|
|
short
|
|
LittleShort(short l)
|
|
{
|
|
uint8_t b1, b2;
|
|
|
|
b1 = l & 255;
|
|
b2 = (l >> 8) & 255;
|
|
|
|
return (b1 << 8) + b2;
|
|
}
|
|
|
|
short
|
|
BigShort(short l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
|
|
int
|
|
LittleLong(int l)
|
|
{
|
|
uint8_t b1, b2, b3, b4;
|
|
|
|
b1 = l & 255;
|
|
b2 = (l >> 8) & 255;
|
|
b3 = (l >> 16) & 255;
|
|
b4 = (l >> 24) & 255;
|
|
|
|
return ((int)b1 << 24) + ((int)b2 << 16) + ((int)b3 << 8) + b4;
|
|
}
|
|
|
|
int
|
|
BigLong(int l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
float
|
|
LittleFloat(float l)
|
|
{
|
|
union {
|
|
uint8_t b[4];
|
|
float f;
|
|
} in , out;
|
|
|
|
in.f = l;
|
|
out.b[0] = in.b[3];
|
|
out.b[1] = in.b[2];
|
|
out.b[2] = in.b[1];
|
|
out.b[3] = in.b[0];
|
|
|
|
return out.f;
|
|
}
|
|
|
|
float
|
|
BigFloat(float l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
|
|
#else /* must be little endian */
|
|
|
|
|
|
short
|
|
BigShort(short l)
|
|
{
|
|
uint8_t b1, b2;
|
|
|
|
b1 = l & 255;
|
|
b2 = (l >> 8) & 255;
|
|
|
|
return (b1 << 8) + b2;
|
|
}
|
|
|
|
short
|
|
LittleShort(short l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
int
|
|
BigLong(int l)
|
|
{
|
|
uint8_t b1, b2, b3, b4;
|
|
|
|
b1 = l & 255;
|
|
b2 = (l >> 8) & 255;
|
|
b3 = (l >> 16) & 255;
|
|
b4 = (l >> 24) & 255;
|
|
|
|
return ((int)b1 << 24) + ((int)b2 << 16) + ((int)b3 << 8) + b4;
|
|
}
|
|
|
|
int
|
|
LittleLong(int l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
float
|
|
BigFloat(float l)
|
|
{
|
|
union {
|
|
uint8_t b[4];
|
|
float f;
|
|
} in , out;
|
|
|
|
in.f = l;
|
|
out.b[0] = in.b[3];
|
|
out.b[1] = in.b[2];
|
|
out.b[2] = in.b[1];
|
|
out.b[3] = in.b[0];
|
|
|
|
return out.f;
|
|
}
|
|
|
|
float
|
|
LittleFloat(float l)
|
|
{
|
|
return l;
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
/* ========================================================================= */
|
|
|
|
|
|
/*
|
|
* FIXME: byte swap?
|
|
*
|
|
* this is a 16 bit, non-reflected CRC using the polynomial 0x1021
|
|
* and the initial and final xor values shown below... in other words, the
|
|
* CCITT standard CRC used by XMODEM
|
|
*/
|
|
|
|
#define CRC_INIT_VALUE 0xffff
|
|
#define CRC_XOR_VALUE 0x0000
|
|
|
|
static unsigned short crctable[256] = {
|
|
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
|
|
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
|
|
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
|
|
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
|
|
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
|
|
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
|
|
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
|
|
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
|
|
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
|
|
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
|
|
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
|
|
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
|
|
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
|
|
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
|
|
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
|
|
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
|
|
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
|
|
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
|
|
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
|
|
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
|
|
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
|
|
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
|
|
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
|
|
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
|
|
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
|
|
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
|
|
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
|
|
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
|
|
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
|
|
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
|
|
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
|
|
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
|
|
};
|
|
|
|
void
|
|
CRC_Init(unsigned short *crcvalue)
|
|
{
|
|
*crcvalue = CRC_INIT_VALUE;
|
|
}
|
|
|
|
void
|
|
CRC_ProcessByte(unsigned short *crcvalue, uint8_t data)
|
|
{
|
|
*crcvalue = (*crcvalue << 8) ^ crctable[(*crcvalue >> 8) ^ data];
|
|
}
|
|
|
|
unsigned short
|
|
CRC_Value(unsigned short crcvalue)
|
|
{
|
|
return crcvalue ^ CRC_XOR_VALUE;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
/*
|
|
* ============
|
|
* CreatePath
|
|
* ============
|
|
*/
|
|
void
|
|
CreatePath(char *path)
|
|
{
|
|
char *ofs, c;
|
|
|
|
for (ofs = path + 1; *ofs; ofs++) {
|
|
c = *ofs;
|
|
if (c == '/' || c == '\\') { /* create the directory */
|
|
*ofs = 0;
|
|
Q_mkdir(path);
|
|
*ofs = c;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* ============
|
|
* Q_CopyFile
|
|
* Used to archive source files
|
|
*============
|
|
*/
|
|
void
|
|
Q_CopyFile(const char *from, char *to)
|
|
{
|
|
void *buffer;
|
|
int length;
|
|
|
|
length = LoadFile(from, &buffer);
|
|
CreatePath(to);
|
|
SaveFile(to, buffer, length);
|
|
free(buffer);
|
|
}
|
|
|
|
// from QuakeSpasm
|
|
|
|
/* platform dependant (v)snprintf function names: */
|
|
#if defined(_WIN32)
|
|
#define snprintf_func _snprintf
|
|
#define vsnprintf_func _vsnprintf
|
|
#else
|
|
#define snprintf_func snprintf
|
|
#define vsnprintf_func vsnprintf
|
|
#endif
|
|
|
|
int q_vsnprintf(char *str, size_t size, const char *format, va_list args)
|
|
{
|
|
int ret;
|
|
|
|
ret = vsnprintf_func(str, size, format, args);
|
|
|
|
if (ret < 0)
|
|
ret = (int)size;
|
|
if (size == 0) /* no buffer */
|
|
return ret;
|
|
if ((size_t)ret >= size)
|
|
str[size - 1] = '\0';
|
|
|
|
return ret;
|
|
}
|
|
|
|
int q_snprintf(char *str, size_t size, const char *format, ...)
|
|
{
|
|
int ret;
|
|
va_list argptr;
|
|
|
|
va_start(argptr, format);
|
|
ret = q_vsnprintf(str, size, format, argptr);
|
|
va_end(argptr);
|
|
|
|
return ret;
|
|
}
|