diff options
Diffstat (limited to 'src/common/metafile.cpp')
-rw-r--r-- | src/common/metafile.cpp | 832 |
1 files changed, 416 insertions, 416 deletions
diff --git a/src/common/metafile.cpp b/src/common/metafile.cpp index 7a67931..9d54f78 100644 --- a/src/common/metafile.cpp +++ b/src/common/metafile.cpp @@ -1,416 +1,416 @@ -// * This file is part of the COLOBOT source code
-// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
-// *
-// * 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 3 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, see http://www.gnu.org/licenses/.
-
-// metafile.cpp
-
-
-#include <windows.h>
-#include <stdio.h>
-
-#include "common/language.h"
-#include "common/metafile.h"
-
-
-
-
-#if _FULL | _NET
-static unsigned char table_codec[23] =
-{
- 0x85, 0x91, 0x73, 0xcf, 0xa2, 0xbb, 0xf4, 0x77,
- 0x58, 0x39, 0x37, 0xfd, 0x2a, 0xcc, 0x5f, 0x55,
- 0x96, 0x90, 0x07, 0xcd, 0x11, 0x88, 0x21,
-};
-
-void Codec(void* buffer, int len, int start)
-{
- unsigned char *b = (unsigned char*)buffer;
- int i;
-
- for ( i=0 ; i<len ; i++ )
- {
- b[i] ^= table_codec[(start++)%23];
- }
-}
-#endif
-
-#if _SCHOOL
-#if _CEEBOTDEMO
-static unsigned char table_codec[136] =
-{
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
- 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
-};
-
-void Codec(void* buffer, int len, int start)
-{
- unsigned char *b = (unsigned char*)buffer;
- int i;
-
- for ( i=0 ; i<len ; i++ )
- {
- b[i] ^= table_codec[(start++)%136];
- }
-}
-#else
-static unsigned char table_codec[29] =
-{
- 0x72, 0x91, 0x37, 0xdf, 0xa1, 0xcc, 0xf5, 0x67,
- 0x53, 0x40, 0xd3, 0xed, 0x3a, 0xbb, 0x5e, 0x43,
- 0x67, 0x9a, 0x0c, 0xed, 0x33, 0x77, 0x2f, 0xf2,
- 0xe3, 0x42, 0x11, 0x5e, 0xc2,
-};
-
-void Codec(void* buffer, int len, int start)
-{
- unsigned char *b = (unsigned char*)buffer;
- int i;
-
- for ( i=0 ; i<len ; i++ )
- {
- b[i] ^= table_codec[(start++)%29];
- }
-}
-#endif
-#endif
-
-#if _DEMO
-static unsigned char table_codec[27] =
-{
- 0x85, 0x91, 0x77, 0xcf, 0xa3, 0xbb, 0xf4, 0x77,
- 0x58, 0x39, 0x37, 0xfd, 0x2a, 0xcc, 0x7f, 0x55,
- 0x96, 0x80, 0x07, 0xcd, 0x11, 0x88, 0x21, 0x44,
- 0x17, 0xee, 0xf0,
-};
-
-void Codec(void* buffer, int len, int start)
-{
- unsigned char *b = (unsigned char*)buffer;
- int i;
-
- for ( i=0 ; i<len ; i++ )
- {
- b[i] ^= table_codec[(start++)%27];
- }
-}
-#endif
-
-
-
-// Object's constructor.
-
-CMetaFile::CMetaFile()
-{
- int i;
-
- for ( i=0 ; i<METAMAX ; i++ )
- {
- m_list[i].stream = 0;
- m_list[i].headers = 0;
- }
-
- m_bMeta = false;
- m_bOpen = false;
- m_start = 0;
- m_pos = 0;
- m_len = 0;
- m_stream = 0;
-}
-
-// Object's destructor.
-
-CMetaFile::~CMetaFile()
-{
- MetaClose();
-}
-
-
-// Test if a file exists.
-
-bool CMetaFile::IsExist(char *metaname, char *filename)
-{
- FILE* file;
- int index, i;
-
- if ( metaname[0] == 0 )
- {
- file = fopen(filename, "rb");
- if ( file == NULL ) return false;
- fclose(file);
- return true;
- }
- else
- {
- index = MetaOpen(metaname);
- if ( index == -1 ) return 1;
-
- for ( i=0 ; i<m_list[index].total ; i++ )
- {
- if ( strcmp(m_list[index].headers[i].name, filename) == 0 )
- {
- return true;
- }
- }
- return false;
- }
-}
-
-// Opens a file. If metaname is empty, it normally opens a file.
-
-int CMetaFile::Open(char *metaname, char *filename)
-{
- int index, i;
-
- if ( m_bOpen ) // file already open?
- {
- Close();
- }
-
- if ( metaname[0] == 0 )
- {
- m_stream = fopen(filename, "rb");
- if ( m_stream == 0 ) return 1;
- m_bOpen = true;
- m_bMeta = false;
- return 0;
- }
- else
- {
- index = MetaOpen(metaname);
- if ( index == -1 ) return 1;
-
- for ( i=0 ; i<m_list[index].total ; i++ )
- {
- if ( strcmp(m_list[index].headers[i].name, filename) == 0 )
- {
- m_stream = m_list[index].stream;
- m_start = m_list[index].headers[i].start;
- m_len = m_list[index].headers[i].len;
- m_bOpen = true;
- m_bMeta = true;
- Seek(0);
- return 0;
- }
- }
- return 1;
- }
-}
-
-// Returns the length of a file.
-
-int CMetaFile::RetLength()
-{
- int len;
-
- if ( !m_bOpen ) return 0;
-
- if ( m_bMeta )
- {
- len = m_len;
- }
- else
- {
- fseek(m_stream, 0, SEEK_END);
- len = ftell(m_stream);
- fseek(m_stream, 0, SEEK_SET);
- }
- return len;
-}
-
-// Positioning in the file, relative to the beginning.
-
-int CMetaFile::Seek(int offset)
-{
- if ( !m_bOpen ) return 1;
-
- if ( m_bMeta )
- {
- m_pos = m_start+offset;
- return fseek(m_stream, m_start+offset, SEEK_SET);
- }
- else
- {
- return fseek(m_stream, offset, SEEK_SET);
- }
-}
-
-// Reads bytes number.
-
-int CMetaFile::Read(void *buffer, int size)
-{
- int err;
-
- if ( !m_bOpen ) return 1;
-
- if ( m_bMeta )
- {
- err = fread(buffer, size, 1, m_stream);
- Codec(buffer, size, m_pos);
- m_pos += size;
- return err;
- }
- else
- {
- return fread(buffer, size, 1, m_stream);
- }
-}
-
-// Reads a byte.
-
-int CMetaFile::GetByte()
-{
- BYTE b;
-
- if ( !m_bOpen ) return 1;
-
- b = getc(m_stream);
- if ( m_bMeta )
- {
- Codec(&b, 1, m_pos);
- m_pos += 1;
- }
- return b;
-}
-
-// Reads 2 bytes.
-
-int CMetaFile::GetWord()
-{
- WORD w;
-
- if ( !m_bOpen ) return 1;
-
- w = getc(m_stream);
- if ( m_bMeta )
- {
- Codec(&w, 2, m_pos);
- m_pos += 2;
- }
- return w;
-}
-
-// Closes the file.
-
-int CMetaFile::Close()
-{
- if ( !m_bOpen ) return 1;
-
- if ( !m_bMeta )
- {
- fclose(m_stream);
- }
- m_bOpen = false;
- m_stream = 0;
-
- return 0;
-}
-
-
-// Opens a metafile. Returns the index or -1.
-
-int CMetaFile::MetaOpen(char *metaname)
-{
- int i, j, offset;
-
- i = MetaSearch(metaname);
- if ( i != -1 ) return i;
-
- for ( i=0 ; i<METAMAX ; i++ )
- {
- if ( m_list[i].stream == 0 )
- {
- m_list[i].stream = fopen(metaname, "rb");
- if ( m_list[i].stream == 0 ) return -1;
-
- strcpy(m_list[i].name, metaname); // memorized the name
-
- fread(&m_list[i].total, sizeof(int), 1, m_list[i].stream);
- m_list[i].headers = (MetaHeader*)malloc(sizeof(MetaHeader)*m_list[i].total);
-
- offset = 4;
- for ( j=0 ; j<m_list[i].total ; j++ )
- {
- fread(&m_list[i].headers[j], sizeof(MetaHeader), 1, m_list[i].stream);
- Codec(&m_list[i].headers[j], sizeof(MetaHeader), offset);
- offset += sizeof(MetaHeader);
- }
- return i;
- }
- }
-
- return -1;
-}
-
-// Seeks if the metafile is already open. Returns the index or -1.
-
-int CMetaFile::MetaSearch(char *metaname)
-{
- int i;
-
- for ( i=0 ; i<METAMAX ; i++ )
- {
- if ( m_list[i].stream != 0 )
- {
- if ( strcmp(m_list[i].name, metaname) == 0 ) return i;
- }
- }
-
- return -1;
-}
-
-// Closes all metafiles.
-
-int CMetaFile::MetaClose()
-{
- int i;
-
- if ( m_stream != 0 )
- {
- fclose(m_stream);
- m_stream = 0;
- }
-
- for ( i=0 ; i<METAMAX ; i++ )
- {
- if ( m_list[i].stream != 0 )
- {
- free(m_list[i].headers);
- m_list[i].headers = 0;
-
- fclose(m_list[i].stream);
- m_list[i].stream = 0;
- }
- }
-
- return 0;
-}
-
-
-
+// * This file is part of the COLOBOT source code +// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch +// * +// * 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 3 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, see http://www.gnu.org/licenses/. + +// metafile.cpp + + +#include <windows.h> +#include <stdio.h> + +#include "common/language.h" +#include "common/metafile.h" + + + + +#if _FULL | _NET +static unsigned char table_codec[23] = +{ + 0x85, 0x91, 0x73, 0xcf, 0xa2, 0xbb, 0xf4, 0x77, + 0x58, 0x39, 0x37, 0xfd, 0x2a, 0xcc, 0x5f, 0x55, + 0x96, 0x90, 0x07, 0xcd, 0x11, 0x88, 0x21, +}; + +void Codec(void* buffer, int len, int start) +{ + unsigned char *b = (unsigned char*)buffer; + int i; + + for ( i=0 ; i<len ; i++ ) + { + b[i] ^= table_codec[(start++)%23]; + } +} +#endif + +#if _SCHOOL +#if _CEEBOTDEMO +static unsigned char table_codec[136] = +{ + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, + 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, +}; + +void Codec(void* buffer, int len, int start) +{ + unsigned char *b = (unsigned char*)buffer; + int i; + + for ( i=0 ; i<len ; i++ ) + { + b[i] ^= table_codec[(start++)%136]; + } +} +#else +static unsigned char table_codec[29] = +{ + 0x72, 0x91, 0x37, 0xdf, 0xa1, 0xcc, 0xf5, 0x67, + 0x53, 0x40, 0xd3, 0xed, 0x3a, 0xbb, 0x5e, 0x43, + 0x67, 0x9a, 0x0c, 0xed, 0x33, 0x77, 0x2f, 0xf2, + 0xe3, 0x42, 0x11, 0x5e, 0xc2, +}; + +void Codec(void* buffer, int len, int start) +{ + unsigned char *b = (unsigned char*)buffer; + int i; + + for ( i=0 ; i<len ; i++ ) + { + b[i] ^= table_codec[(start++)%29]; + } +} +#endif +#endif + +#if _DEMO +static unsigned char table_codec[27] = +{ + 0x85, 0x91, 0x77, 0xcf, 0xa3, 0xbb, 0xf4, 0x77, + 0x58, 0x39, 0x37, 0xfd, 0x2a, 0xcc, 0x7f, 0x55, + 0x96, 0x80, 0x07, 0xcd, 0x11, 0x88, 0x21, 0x44, + 0x17, 0xee, 0xf0, +}; + +void Codec(void* buffer, int len, int start) +{ + unsigned char *b = (unsigned char*)buffer; + int i; + + for ( i=0 ; i<len ; i++ ) + { + b[i] ^= table_codec[(start++)%27]; + } +} +#endif + + + +// Object's constructor. + +CMetaFile::CMetaFile() +{ + int i; + + for ( i=0 ; i<METAMAX ; i++ ) + { + m_list[i].stream = 0; + m_list[i].headers = 0; + } + + m_bMeta = false; + m_bOpen = false; + m_start = 0; + m_pos = 0; + m_len = 0; + m_stream = 0; +} + +// Object's destructor. + +CMetaFile::~CMetaFile() +{ + MetaClose(); +} + + +// Test if a file exists. + +bool CMetaFile::IsExist(char *metaname, char *filename) +{ + FILE* file; + int index, i; + + if ( metaname[0] == 0 ) + { + file = fopen(filename, "rb"); + if ( file == NULL ) return false; + fclose(file); + return true; + } + else + { + index = MetaOpen(metaname); + if ( index == -1 ) return 1; + + for ( i=0 ; i<m_list[index].total ; i++ ) + { + if ( strcmp(m_list[index].headers[i].name, filename) == 0 ) + { + return true; + } + } + return false; + } +} + +// Opens a file. If metaname is empty, it normally opens a file. + +int CMetaFile::Open(char *metaname, char *filename) +{ + int index, i; + + if ( m_bOpen ) // file already open? + { + Close(); + } + + if ( metaname[0] == 0 ) + { + m_stream = fopen(filename, "rb"); + if ( m_stream == 0 ) return 1; + m_bOpen = true; + m_bMeta = false; + return 0; + } + else + { + index = MetaOpen(metaname); + if ( index == -1 ) return 1; + + for ( i=0 ; i<m_list[index].total ; i++ ) + { + if ( strcmp(m_list[index].headers[i].name, filename) == 0 ) + { + m_stream = m_list[index].stream; + m_start = m_list[index].headers[i].start; + m_len = m_list[index].headers[i].len; + m_bOpen = true; + m_bMeta = true; + Seek(0); + return 0; + } + } + return 1; + } +} + +// Returns the length of a file. + +int CMetaFile::RetLength() +{ + int len; + + if ( !m_bOpen ) return 0; + + if ( m_bMeta ) + { + len = m_len; + } + else + { + fseek(m_stream, 0, SEEK_END); + len = ftell(m_stream); + fseek(m_stream, 0, SEEK_SET); + } + return len; +} + +// Positioning in the file, relative to the beginning. + +int CMetaFile::Seek(int offset) +{ + if ( !m_bOpen ) return 1; + + if ( m_bMeta ) + { + m_pos = m_start+offset; + return fseek(m_stream, m_start+offset, SEEK_SET); + } + else + { + return fseek(m_stream, offset, SEEK_SET); + } +} + +// Reads bytes number. + +int CMetaFile::Read(void *buffer, int size) +{ + int err; + + if ( !m_bOpen ) return 1; + + if ( m_bMeta ) + { + err = fread(buffer, size, 1, m_stream); + Codec(buffer, size, m_pos); + m_pos += size; + return err; + } + else + { + return fread(buffer, size, 1, m_stream); + } +} + +// Reads a byte. + +int CMetaFile::GetByte() +{ + BYTE b; + + if ( !m_bOpen ) return 1; + + b = getc(m_stream); + if ( m_bMeta ) + { + Codec(&b, 1, m_pos); + m_pos += 1; + } + return b; +} + +// Reads 2 bytes. + +int CMetaFile::GetWord() +{ + WORD w; + + if ( !m_bOpen ) return 1; + + w = getc(m_stream); + if ( m_bMeta ) + { + Codec(&w, 2, m_pos); + m_pos += 2; + } + return w; +} + +// Closes the file. + +int CMetaFile::Close() +{ + if ( !m_bOpen ) return 1; + + if ( !m_bMeta ) + { + fclose(m_stream); + } + m_bOpen = false; + m_stream = 0; + + return 0; +} + + +// Opens a metafile. Returns the index or -1. + +int CMetaFile::MetaOpen(char *metaname) +{ + int i, j, offset; + + i = MetaSearch(metaname); + if ( i != -1 ) return i; + + for ( i=0 ; i<METAMAX ; i++ ) + { + if ( m_list[i].stream == 0 ) + { + m_list[i].stream = fopen(metaname, "rb"); + if ( m_list[i].stream == 0 ) return -1; + + strcpy(m_list[i].name, metaname); // memorized the name + + fread(&m_list[i].total, sizeof(int), 1, m_list[i].stream); + m_list[i].headers = (MetaHeader*)malloc(sizeof(MetaHeader)*m_list[i].total); + + offset = 4; + for ( j=0 ; j<m_list[i].total ; j++ ) + { + fread(&m_list[i].headers[j], sizeof(MetaHeader), 1, m_list[i].stream); + Codec(&m_list[i].headers[j], sizeof(MetaHeader), offset); + offset += sizeof(MetaHeader); + } + return i; + } + } + + return -1; +} + +// Seeks if the metafile is already open. Returns the index or -1. + +int CMetaFile::MetaSearch(char *metaname) +{ + int i; + + for ( i=0 ; i<METAMAX ; i++ ) + { + if ( m_list[i].stream != 0 ) + { + if ( strcmp(m_list[i].name, metaname) == 0 ) return i; + } + } + + return -1; +} + +// Closes all metafiles. + +int CMetaFile::MetaClose() +{ + int i; + + if ( m_stream != 0 ) + { + fclose(m_stream); + m_stream = 0; + } + + for ( i=0 ; i<METAMAX ; i++ ) + { + if ( m_list[i].stream != 0 ) + { + free(m_list[i].headers); + m_list[i].headers = 0; + + fclose(m_list[i].stream); + m_list[i].stream = 0; + } + } + + return 0; +} + + + |