mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 13:50:13 +00:00
262 lines
6.7 KiB
C++
262 lines
6.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/file.h"
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#include "common/memstream.h"
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#include "common/str.h"
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#include "common/ustr.h"
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#include "common/winexe.h"
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#include "common/winexe_ne.h"
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#include "common/winexe_pe.h"
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namespace Common {
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WinResourceID &WinResourceID::operator=(const String &x) {
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_name = x;
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_idType = kIDTypeString;
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return *this;
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}
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WinResourceID &WinResourceID::operator=(uint32 x) {
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_id = x;
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_idType = kIDTypeNumerical;
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return *this;
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}
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bool WinResourceID::operator==(const String &x) const {
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return _idType == kIDTypeString && _name.equalsIgnoreCase(x);
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}
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bool WinResourceID::operator==(const uint32 &x) const {
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return _idType == kIDTypeNumerical && _id == x;
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}
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bool WinResourceID::operator==(const WinResourceID &x) const {
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if (_idType != x._idType)
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return false;
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if (_idType == kIDTypeString)
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return _name.equalsIgnoreCase(x._name);
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if (_idType == kIDTypeNumerical)
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return _id == x._id;
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return true;
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}
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String WinResourceID::getString() const {
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if (_idType != kIDTypeString)
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return "";
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return _name;
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}
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uint32 WinResourceID::getID() const {
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if (_idType != kIDTypeNumerical)
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return 0xffffffff;
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return _id;
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}
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String WinResourceID::toString() const {
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if (_idType == kIDTypeString)
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return _name;
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else if (_idType == kIDTypeNumerical)
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return String::format("0x%08x", _id);
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return "";
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}
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bool WinResources::loadFromEXE(const String &fileName) {
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if (fileName.empty())
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return false;
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File *file = new File();
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if (!file->open(fileName)) {
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delete file;
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return false;
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}
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return loadFromEXE(file);
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}
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bool WinResources::loadFromCompressedEXE(const String &fileName) {
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// Based on http://www.cabextract.org.uk/libmspack/doc/szdd_kwaj_format.html
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// TODO: Merge this with with loadFromEXE() so the handling of the compressed
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// EXE's is transparent
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File file;
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if (!file.open(fileName))
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return false;
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// First part of the signature
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if (file.readUint32BE() != MKTAG('S','Z','D','D'))
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return false;
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// Second part of the signature
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if (file.readUint32BE() != 0x88F02733)
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return false;
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// Compression mode must be 'A'
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if (file.readByte() != 'A')
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return false;
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file.readByte(); // file name character change
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uint32 unpackedLength = file.readUint32LE();
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byte *window = new byte[0x1000];
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int pos = 0x1000 - 16;
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memset(window, 0x20, 0x1000); // Initialize to all spaces
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byte *unpackedData = (byte *)malloc(unpackedLength);
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assert(unpackedData);
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byte *dataPos = unpackedData;
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// Apply simple LZSS decompression
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for (;;) {
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byte controlByte = file.readByte();
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if (file.eos())
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break;
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for (byte i = 0; i < 8; i++) {
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if (controlByte & (1 << i)) {
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*dataPos++ = window[pos++] = file.readByte();
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pos &= 0xFFF;
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} else {
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int matchPos = file.readByte();
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int matchLen = file.readByte();
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matchPos |= (matchLen & 0xF0) << 4;
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matchLen = (matchLen & 0xF) + 3;
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while (matchLen--) {
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*dataPos++ = window[pos++] = window[matchPos++];
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pos &= 0xFFF;
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matchPos &= 0xFFF;
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}
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}
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}
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}
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delete[] window;
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SeekableReadStream *stream = new MemoryReadStream(unpackedData, unpackedLength);
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return loadFromEXE(stream);
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}
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WinResources *WinResources::createFromEXE(const String &fileName) {
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WinResources *exe;
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// First try loading via the NE code
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exe = new Common::NEResources();
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if (exe->loadFromEXE(fileName)) {
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return exe;
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}
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delete exe;
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// Then try loading via the PE code
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exe = new Common::PEResources();
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if (exe->loadFromEXE(fileName)) {
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return exe;
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}
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delete exe;
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return nullptr;
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}
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WinResources::VersionInfo *WinResources::parseVersionInfo(SeekableReadStream *res) {
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VersionInfo *info = new VersionInfo;
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while (res->pos() < res->size() && !res->eos()) {
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while (res->pos() % 4 && !res->eos()) // Pad to 4
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res->readByte();
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/* uint16 len = */ res->readUint16LE();
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uint16 valLen = res->readUint16LE();
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uint16 type = res->readUint16LE();
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uint16 c;
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Common::U32String key;
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while ((c = res->readUint16LE()) != 0 && !res->eos())
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key += c;
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while (res->pos() % 4 && !res->eos()) // Pad to 4
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res->readByte();
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if (res->eos())
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break;
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if (type != 0) { // text
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Common::U32String value;
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for (int j = 0; j < valLen; j++)
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value += res->readUint16LE();
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info->hash.setVal(key.encode(), value);
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} else {
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if (key == "VS_VERSION_INFO") {
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// Signature check
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if (res->readUint32LE() != 0xFEEF04BD)
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return info;
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res->readUint32LE(); // struct version
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// The versions are stored a bit weird
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info->fileVersion[1] = res->readUint16LE();
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info->fileVersion[0] = res->readUint16LE();
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info->fileVersion[3] = res->readUint16LE();
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info->fileVersion[2] = res->readUint16LE();
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info->productVersion[1] = res->readUint16LE();
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info->productVersion[0] = res->readUint16LE();
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info->productVersion[3] = res->readUint16LE();
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info->productVersion[2] = res->readUint16LE();
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info->fileFlagsMask = res->readUint32LE();
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info->fileFlags = res->readUint32LE();
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info->fileOS = res->readUint32LE();
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info->fileType = res->readUint32LE();
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info->fileSubtype = res->readUint32LE();
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info->fileDate[0] = res->readUint32LE();
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info->fileDate[1] = res->readUint32LE();
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info->hash.setVal("File:", Common::String::format("%d.%d.%d.%d", info->fileVersion[0], info->fileVersion[1], info->fileVersion[2], info->fileVersion[3]));
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info->hash.setVal("Prod:", Common::String::format("%d.%d.%d.%d", info->productVersion[0], info->productVersion[1], info->productVersion[2], info->productVersion[3]));
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}
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}
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}
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return info;
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}
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WinResources::VersionInfo::VersionInfo() {
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fileVersion[0] = fileVersion[1] = fileVersion[2] = fileVersion[3] = 0;
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productVersion[0] = productVersion[1] = productVersion[2] = productVersion[3] = 0;
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fileFlagsMask = 0;
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fileFlags = 0;
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fileOS = 0;
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fileType = 0;
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fileSubtype = 0;
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fileDate[0] = fileDate[1] = 0;
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}
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} // End of namespace Common
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