diff options
Diffstat (limited to 'src/jake2/qcommon')
| -rw-r--r-- | src/jake2/qcommon/FS.java | 229 |
1 files changed, 161 insertions, 68 deletions
diff --git a/src/jake2/qcommon/FS.java b/src/jake2/qcommon/FS.java index 9081cd3..2eb591c 100644 --- a/src/jake2/qcommon/FS.java +++ b/src/jake2/qcommon/FS.java @@ -2,12 +2,12 @@ * FS.java * Copyright (C) 2003 * - * $Id: FS.java,v 1.8 2004-10-18 19:45:54 cawe Exp $ + * $Id: FS.java,v 1.9 2004-10-19 17:23:20 cawe Exp $ */ /* Copyright (C) 1997-2001 Id Software, Inc. -This program is free software; you can redistribute it and/or + 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. @@ -31,7 +31,9 @@ import jake2.game.cvar_t; import jake2.sys.Sys; import java.io.*; +import java.nio.ByteBuffer; import java.nio.ByteOrder; +import java.nio.channels.FileChannel; import java.util.*; import javax.imageio.stream.FileImageInputStream; @@ -44,11 +46,11 @@ import javax.imageio.stream.FileImageInputStream; public final class FS extends Globals { /* - * ============================================================================= + * ================================================== * * QUAKE FILESYSTEM * - * ============================================================================= + * ================================================== */ public static class packfile_t { @@ -93,25 +95,23 @@ public final class FS extends Globals { String to; } - public static List fs_links = new LinkedList(); // with - // filelink_t - // entries + // with filelink_t entries + public static List fs_links = new LinkedList(); public static class searchpath_t { String filename; - pack_t pack; // only one of filename / pack will be used + pack_t pack; // only one of filename or pack will be used searchpath_t next; } public static searchpath_t fs_searchpaths; - public static searchpath_t fs_base_searchpaths; // without - // gamedirs + // without gamedirs + public static searchpath_t fs_base_searchpaths; /* - * * All of Quake's data access is through a hierchal file system, but the * contents of the file system can be transparently merged from several * sources. @@ -132,9 +132,9 @@ public final class FS extends Globals { */ /* - * ============ FS_CreatePath + * CreatePath * - * Creates any directories needed to store the given filename ============ + * Creates any directories needed to store the given filename. */ public static void CreatePath(String path) { int index = path.lastIndexOf('/'); @@ -148,10 +148,10 @@ public final class FS extends Globals { } /* - * ============== FS_FCloseFile + * FCloseFile * * For some reason, other dll's can't just call fclose() on files returned - * by FS_FOpenFile... ============== + * by FS_FOpenFile... */ public static void FCloseFile(RandomAccessFile file) throws IOException { file.close(); @@ -185,7 +185,7 @@ public final class FS extends Globals { } } - // search through the path, one element at a time + // search through the path, one element at a time for (search = fs_searchpaths; search != null; search = search.next) { // is the element a pak file? @@ -225,16 +225,14 @@ public final class FS extends Globals { return -1; } + public static int file_from_pak = 0; + /* - * =========== FS_FOpenFile + * FOpenFile * - * Finds the file in the search path. returns filesize and an open FILE * - * Used for streaming data out of either a pak file or a seperate file. - * =========== + * Finds the file in the search path. returns a RadomAccesFile. Used for + * streaming data out of either a pak file or a seperate file. */ - - public static int file_from_pak = 0; - public static RandomAccessFile FOpenFile(String filename) throws IOException { searchpath_t search; @@ -263,7 +261,7 @@ public final class FS extends Globals { } // - // search through the path, one element at a time + // search through the path, one element at a time // for (search = fs_searchpaths; search != null; search = search.next) { // is the element a pak file? @@ -310,15 +308,14 @@ public final class FS extends Globals { return null; } - /* - * ================= FS_ReadFile + // read in blocks of 64k + public static final int MAX_READ = 0x10000; + + /** + * Read * - * Properly handles partial reads ================= + * Properly handles partial reads */ - public static final int MAX_READ = 0x10000; // read in - // blocks of - // 64k - public static void Read(byte[] buffer, int len, RandomAccessFile f) { int block, remaining; @@ -343,7 +340,7 @@ public final class FS extends Globals { Com.Error(Globals.ERR_FATAL, "FS_Read: -1 bytes read"); } // - // do some progress bar thing here... + // do some progress bar thing here... // remaining -= read; offset += read; @@ -351,10 +348,10 @@ public final class FS extends Globals { } /* - * ============ FS_LoadFile + * LoadFile * * Filename are reletive to the quake search path a null buffer will just - * return the file length without loading ============ + * return the file content as byte[] */ public static byte[] LoadFile(String path) { RandomAccessFile file; @@ -362,7 +359,7 @@ public final class FS extends Globals { byte[] buf = null; int len = 0; - // TODO bughack for bad strings (fuck \0) + // TODO hack for bad strings (fuck \0) int index = path.indexOf('\0'); if (index != -1) path = path.substring(0, index); @@ -386,7 +383,111 @@ public final class FS extends Globals { } /* - * ============= FS_FreeFile ============= + * LoadMappedFile + * + * Filename are reletive to the quake search path a null buffer will just + * return the file content as ByteBuffer (memory mapped) + */ + public static ByteBuffer LoadMappedFile(String filename) { + searchpath_t search; + String netpath; + pack_t pak; + int i; + filelink_t link; + File file = null; + + int fileLength = 0; + FileChannel channel = null; + FileInputStream input = null; + ByteBuffer buffer = null; + + file_from_pak = 0; + + try { + // check for links first + for (Iterator it = fs_links.iterator(); it.hasNext();) { + link = (filelink_t) it.next(); + + if (filename.regionMatches(0, link.from, 0, link.fromlength)) { + netpath = link.to + filename.substring(link.fromlength); + file = new File(netpath); + if (file.canRead()) { + input = new FileInputStream(file); + channel = input.getChannel(); + fileLength = (int) channel.size(); + buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, + fileLength); + input.close(); + return buffer; + } + return null; + } + } + + // + // search through the path, one element at a time + // + for (search = fs_searchpaths; search != null; search = search.next) { + // is the element a pak file? + if (search.pack != null) { + // look through all the pak file elements + pak = search.pack; + filename = filename.toLowerCase(); + packfile_t entry = (packfile_t) pak.files.get(filename); + + if (entry != null) { + // found it! + file_from_pak = 1; + //Com.DPrintf ("PackFile: " + pak.filename + " : " + + // filename + '\n'); + file = new File(pak.filename); + if (!file.canRead()) + Com.Error(Globals.ERR_FATAL, "Couldn't reopen " + + pak.filename); + if (pak.handle == null || !pak.handle.getFD().valid()) { + // hold the pakfile handle open + pak.handle = new RandomAccessFile(pak.filename, "r"); + } + // open a new file on the pakfile + + channel = pak.handle.getChannel(); + buffer = channel.map(FileChannel.MapMode.READ_ONLY, + entry.filepos, entry.filelen); + channel.close(); + return buffer; + } + } else { + // check a file in the directory tree + netpath = search.filename + '/' + filename; + + file = new File(netpath); + if (!file.canRead()) + continue; + + //Com.DPrintf("FindFile: " + netpath +'\n'); + input = new FileInputStream(file); + channel = input.getChannel(); + fileLength = (int) channel.size(); + buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, + fileLength); + input.close(); + return buffer; + } + } + } catch (Exception e) { + } + try { + if (input != null) + input.close(); + else if (channel != null && channel.isOpen()) + channel.close(); + } catch (IOException ioe) { + } + return null; + } + + /* + * FreeFile */ public static void FreeFile(byte[] buffer) { buffer = null; @@ -395,7 +496,7 @@ public final class FS extends Globals { static final int IDPAKHEADER = (('K' << 24) + ('C' << 16) + ('A' << 8) + 'P'); static class dpackheader_t { - int ident; // == IDPAKHEADER + int ident; // IDPAKHEADER int dirofs; @@ -404,13 +505,16 @@ public final class FS extends Globals { static final int MAX_FILES_IN_PACK = 4096; + // buffer for C-Strings char[56] + static byte[] tmpText = new byte[packfile_t.NAME_SIZE]; + /* - * ================= FS_LoadPackFile + * LoadPackFile * * Takes an explicit (not game tree related) path to a pak file. * * Loads the header and directory, adding the files at the beginning of the - * list so they override previous pack files. ================= + * list so they override previous pack files. */ static pack_t LoadPackFile(String packfile) { @@ -448,26 +552,22 @@ public final class FS extends Globals { packhandle.seek(header.dirofs); - // buffer for C-Strings char[56] - byte[] text = new byte[packfile_t.NAME_SIZE]; // parse the directory packfile_t entry = null; for (int i = 0; i < numpackfiles; i++) { - packhandle.readFully(text); + packhandle.readFully(tmpText); entry = new packfile_t(); - entry.name = new String(text).trim(); + entry.name = new String(tmpText).trim(); entry.filepos = packhandle.readInt(); entry.filelen = packhandle.readInt(); newfiles.put(entry.name.toLowerCase(), entry); - - //logger.log(Level.FINEST, i + ".\t" + entry); } } catch (IOException e) { - //logger.log(Level.WARNING, e.toString()); + Com.DPrintf(e.getMessage() + '\n'); return null; } @@ -484,10 +584,10 @@ public final class FS extends Globals { } /* - * ================ FS_AddGameDirectory + * AddGameDirectory * * Sets fs_gamedir, adds the directory to the head of the path, then loads - * and adds pak1.pak pak2.pak ... ================ + * and adds pak1.pak pak2.pak ... */ static void AddGameDirectory(String dir) { int i; @@ -530,18 +630,17 @@ public final class FS extends Globals { } /* - * ============ FS_Gamedir + * Gamedir * - * Called to find where to write a file (demos, savegames, etc) ============ + * Called to find where to write a file (demos, savegames, etc) */ public static String Gamedir() { return (fs_userdir != null) ? fs_userdir : Globals.BASEDIRNAME; } /* - * ============= FS_ExecAutoexec ============= + * ExecAutoexec */ - public static void ExecAutoexec() { String dir; @@ -565,16 +664,13 @@ public final class FS extends Globals { } /* - * ================ FS_SetGamedir + * SetGamedir * - * Sets the gamedir and path to a different directory. ================ + * Sets the gamedir and path to a different directory. */ public static void SetGamedir(String dir) { searchpath_t next; - // if (strstr(dir, "..") || strstr(dir, "/") - // || strstr(dir, "\\") || strstr(dir, ":") ) - if (dir.indexOf("..") != -1 || dir.indexOf("/") != -1 || dir.indexOf("\\") != -1 || dir.indexOf(":") != -1) { Com.Printf("Gamedir should be a single filename, not a path\n"); @@ -589,7 +685,7 @@ public final class FS extends Globals { try { fs_searchpaths.pack.handle.close(); } catch (IOException e) { - //logger.log(Level.WARNING, e.toString()); + Com.DPrintf(e.getMessage() + '\n'); } // clear the hashtable fs_searchpaths.pack.files.clear(); @@ -622,9 +718,9 @@ public final class FS extends Globals { } /* - * ================ FS_Link_f + * Link_f * - * Creates a filelink_t ================ + * Creates a filelink_t */ public static void Link_f() { filelink_t entry = null; @@ -660,7 +756,7 @@ public final class FS extends Globals { } /* - * * FS_ListFiles + * ListFiles */ public static String[] ListFiles(String findname, int musthave, int canthave) { String[] list = null; @@ -678,7 +774,7 @@ public final class FS extends Globals { } /* - * * FS_Dir_f + * Dir_f */ public static void Dir_f() { String path = null; @@ -720,9 +816,7 @@ public final class FS extends Globals { } /* - * ============ FS_Path_f - * - * ============ + * Path_f */ public static void Path_f() { @@ -748,10 +842,9 @@ public final class FS extends Globals { } /* - * ================ FS_NextPath + * NextPath * * Allows enumerating all of the directories in the search path - * ================ */ public static String NextPath(String prevpath) { searchpath_t s; @@ -775,7 +868,7 @@ public final class FS extends Globals { } /* - * ================ FS_InitFilesystem ================ + * InitFilesystem */ public static void InitFilesystem() { Cmd.AddCommand("path", new xcommand_t() { |