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| -rw-r--r-- | engines/hdb/file-manager.cpp | 81 | ||||
| -rw-r--r-- | engines/hdb/file-manager.h | 114 |
2 files changed, 195 insertions, 0 deletions
diff --git a/engines/hdb/file-manager.cpp b/engines/hdb/file-manager.cpp new file mode 100644 index 0000000000..5b3c9963aa --- /dev/null +++ b/engines/hdb/file-manager.cpp @@ -0,0 +1,81 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "hdb/file-manager.h" +#include "common/debug.h" +#include "common/file.h" +#include "common/error.h" + +namespace HDB { + +bool FileMan::openMSD(const Common::String &filename) { + uint32 offset; + + if (!_msdFile->open(filename)) { + error("FileMan::openMSD(): Error reading the MSD file"); + return false; + } else { + dataHeader.id[0] = _msdFile->readByte(); + dataHeader.id[1] = _msdFile->readByte(); + dataHeader.id[2] = _msdFile->readByte(); + dataHeader.id[3] = _msdFile->readByte(); + + if (!strncmp(dataHeader.id, MSD_IDENT_COMPRESSED, 4)) { + _compressed = true; + debug("COMPRESSED FILE"); + return false; + } else if (!strncmp(dataHeader.id, MSD_IDENT_UNCOMPRESSED, 4)) { + _compressed = false; + + offset = _msdFile->readUint32LE(); + _msdFile->seek((int32)offset, SEEK_SET); + + // Note: The MPC archive format assumes the offset to be uint32, + // but Common::File::seek() takes the offset as int32. + + dataHeader.dirSize = _msdFile->readUint32LE(); + + for (uint32 fileIndex = 0; fileIndex < dataHeader.dirSize; fileIndex++) { + MSDEntry* dirEntry = new MSDEntry(); + + for (int fileNameIndex = 0; fileNameIndex < 64; fileNameIndex++) { + dirEntry->filename[fileNameIndex] = _msdFile->readByte(); + } + + dirEntry->offset = _msdFile->readUint32LE(); + dirEntry->length = _msdFile->readUint32LE(); + dirEntry->ulength = _msdFile->readUint32LE(); + dirEntry->type = (DataType)_msdFile->readUint32LE(); + + _dir.push_back(dirEntry); + } + + return true; + + } else { + error("Invalid MPC File."); + return false; + } + } +} + +}
\ No newline at end of file diff --git a/engines/hdb/file-manager.h b/engines/hdb/file-manager.h new file mode 100644 index 0000000000..b0f9ccc63e --- /dev/null +++ b/engines/hdb/file-manager.h @@ -0,0 +1,114 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef HDB_FILE_MANAGER_H +#define HDB_FILE_MANAGER_H + +#include "common/array.h" +#include "common/file.h" +#include "common/error.h" + +namespace HDB { + +// Each entry in a MSD file is of the following types + +enum DataType { + TYPE_ERROR, + TYPE_BINARY, + TYPE_TILE32, + TYPE_FONT, + TYPE_ICON32, + TYPE_PIC, + + ENDOFTYPES +}; + +struct MSDEntry { + char filename[64]; // filename + long offset; // offset in MSD file of data + long length; // compressed length of data + long ulength; // uncompressed length + DataType type; // type of data +}; + +// data structure for a TILE32 +// the actual 16-bit "565" PocketPC-formatted +// gfx data follows the structure in the .msd +// The imagesize will always be 2048 bytes (32*32*2) +struct Tile32Type { + long flags; // bit flags + char name[64]; // name of graphic +}; + +// data structure for a PIC +// the actual 16-bit "565" PocketPC-formatted +// gfx data follows the structure in the .msd +struct PicType { + int width, height; // width & height of pic + char name[64]; // name of pic +}; + +// data structure for a FONT +// the actual 16-bit "565" PocketPC-formatted +// gfx data follows the structure in the .msd +struct FontType { + int type; // 0 = mono, 1 = proportional + int numChars; // how many characters in font + int height; // height of entire font + int kerning; // space between chars + int leading; // space between lines +}; + +// each character in a font has width info and +// an offset from the beginning of the font chunk +struct CharInfo { + short width; // in pixels, of the character + long offset; // from the start of the font charInfo chunk +}; + +class FileMan { +private: + + Common::File* _msdFile; + Common::Array<MSDEntry*> _dir; + MSDEntry* _dirEntry; + int _numEntries; + bool _compressed; + +public: + + struct { + char id[4]; + unsigned long dirSize; + } dataHeader; + + long readOffset; + + bool openMSD(const Common::String &filename); +}; + +#define MSD_IDENT_COMPRESSED "MPCC" +#define MSD_IDENT_UNCOMPRESSED "MPCU" + +} // End of Namespace HDB + +#endif // !HDB_FILE_MANAGER_H |