mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 01:39:57 +00:00
371 lines
9.6 KiB
C++
371 lines
9.6 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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* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/scummsys.h"
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#include "common/archive.h"
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#include "common/textconsole.h"
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#include "mads/mads.h"
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#include "mads/resources.h"
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namespace MADS {
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enum ResourceType {RESTYPE_ROOM, RESTYPE_SC, RESTYPE_TEXT, RESTYPE_QUO, RESTYPE_I,
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RESTYPE_OB, RESTYPE_FONT, RESTYPE_SOUND, RESTYPE_SPEECH, RESTYPE_HAS_EXT, RESTYPE_NO_EXT};
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/**
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* HAG Archives implementation
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*/
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class HagArchive : public Common::Archive {
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private:
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/**
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* Details of a single entry in a HAG file index
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*/
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struct HagEntry {
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Common::String _resourceName;
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uint32 _offset;
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uint32 _size;
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HagEntry(): _offset(0), _size(0) {}
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HagEntry(Common::String resourceName, uint32 offset, uint32 size):
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_resourceName(resourceName), _offset(offset), _size(size) {}
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};
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class HagIndex {
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public:
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Common::List<HagEntry> _entries;
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Common::String _filename;
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};
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Common::Array<HagIndex> _index;
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/**
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* Load the index of all the game's HAG files
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*/
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void loadIndex();
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/**
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* Given a resource name, opens up the correct HAG file and returns whether
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* an entry with the given name exists.
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*/
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bool getHeaderEntry(const Common::String &resourceName, HagIndex &hagIndex, HagEntry &hagEntry) const;
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/**
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* Returns the HAG resource filename that will contain a given resource
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*/
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Common::String getResourceFilename(const Common::String &resourceName) const;
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/**
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* Return a resource type given a resource name
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*/
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ResourceType getResourceType(const Common::String &resourceName) const;
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public:
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HagArchive();
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virtual ~HagArchive();
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// Archive implementation
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virtual bool hasFile(const Common::String &name) const;
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virtual int listMembers(Common::ArchiveMemberList &list) const;
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virtual const Common::ArchiveMemberPtr getMember(const Common::String &name) const;
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virtual Common::SeekableReadStream *createReadStreamForMember(const Common::String &name) const;
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};
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const char *const MADSCONCAT_STRING = "MADSCONCAT";
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HagArchive::HagArchive() {
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loadIndex();
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}
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HagArchive::~HagArchive() {
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}
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// Archive implementation
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bool HagArchive::hasFile(const Common::String &name) const {
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HagIndex hagIndex;
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HagEntry hagEntry;
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return getHeaderEntry(name, hagIndex, hagEntry);
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}
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int HagArchive::listMembers(Common::ArchiveMemberList &list) const {
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int members = 0;
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for (uint hagCtr = 0; hagCtr < _index.size(); ++hagCtr) {
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HagIndex hagIndex = _index[hagCtr];
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Common::List<HagEntry>::iterator i;
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for (i = hagIndex._entries.begin(); i != hagIndex._entries.end(); ++i) {
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list.push_back(Common::ArchiveMemberList::value_type(
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new Common::GenericArchiveMember((*i)._resourceName, this)));
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++members;
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}
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}
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return members;
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}
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const Common::ArchiveMemberPtr HagArchive::getMember(const Common::String &name) const {
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if (!hasFile(name))
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return Common::ArchiveMemberPtr();
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return Common::ArchiveMemberPtr(new Common::GenericArchiveMember(name, this));
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}
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Common::SeekableReadStream *HagArchive::createReadStreamForMember(const Common::String &name) const {
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HagIndex hagIndex;
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HagEntry hagEntry;
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if (getHeaderEntry(name, hagIndex, hagEntry)) {
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// Entry found. If the correct file is not already open, open it
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Common::File f;
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if (!f.open(hagIndex._filename))
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error("Could not open HAG file");
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// Return a new stream for the specific resource
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f.seek(hagEntry._offset);
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return f.readStream(hagEntry._size);
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}
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return nullptr;
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}
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void HagArchive::loadIndex() {
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Common::File hagFile;
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for (int sectionIndex = -1; sectionIndex < 10; ++sectionIndex) {
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Common::String filename = (sectionIndex == -1) ? "GLOBAL.HAG" :
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Common::String::format("SECTION%d.HAG", sectionIndex);
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if (!hagFile.open(filename))
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error("Could not locate HAG file - %s", filename.c_str());
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// Check for header
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char headerBuffer[16];
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if ((hagFile.read(headerBuffer, 16) != 16) ||
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(strncmp(headerBuffer, MADSCONCAT_STRING, 10) != 0))
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error("Invalid HAG file opened");
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// Scan through the HAG index
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int numEntries = hagFile.readUint16LE();
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HagIndex hagIndex;
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hagIndex._filename = filename;
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for (int idx = 0; idx < numEntries; ++idx) {
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// Read in the details of the next resource
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char resourceBuffer[14];
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uint32 offset = hagFile.readUint32LE();
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uint32 size = hagFile.readUint32LE();
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hagFile.read(resourceBuffer, 14);
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hagIndex._entries.push_back(HagEntry(resourceBuffer, offset, size));
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}
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hagFile.close();
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_index.push_back(hagIndex);
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}
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}
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bool HagArchive::getHeaderEntry(const Common::String &resourceName,
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HagIndex &hagIndex, HagEntry &hagEntry) const {
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Common::String resName = resourceName;
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resName.toUppercase();
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if (resName[0] == '*')
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resName.deleteChar(0);
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Common::String hagFilename = getResourceFilename(resName);
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// Find the index for the given file
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for (uint hagCtr = 0; hagCtr < _index.size(); ++hagCtr) {
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hagIndex = _index[hagCtr];
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if (hagIndex._filename == hagFilename) {
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Common::List<HagEntry>::iterator ei;
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for (ei = hagIndex._entries.begin(); ei != hagIndex._entries.end(); ++ei) {
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hagEntry = *ei;
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if (hagEntry._resourceName.compareToIgnoreCase(resName) == 0)
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return true;
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}
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}
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}
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return false;
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}
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Common::String HagArchive::getResourceFilename(const Common::String &resourceName) const {
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ResourceType resType = getResourceType(resourceName);
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Common::String outputFilename = "GLOBAL.HAG";
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if ((resType == RESTYPE_ROOM) || (resType == RESTYPE_SC)) {
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int value = atoi(resourceName.c_str() + 2);
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int hagFileNum = (resType == RESTYPE_ROOM) ? value / 100 : value;
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if (hagFileNum > 0)
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outputFilename = Common::String::format("SECTION%d.HAG", hagFileNum);
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}
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if (resType == RESTYPE_SPEECH)
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outputFilename = "SPEECH.HAG";
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return outputFilename;
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}
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ResourceType HagArchive::getResourceType(const Common::String &resourceName) const {
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if (resourceName.hasPrefix("RM")) {
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// Room resource
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return RESTYPE_ROOM;
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} else if (resourceName.hasPrefix("SC")) {
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// SC resource
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return RESTYPE_SC;
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} else if (resourceName.hasSuffix(".TXT")) {
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// Text resource
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return RESTYPE_TEXT;
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} else if (resourceName.hasSuffix(".QUO")) {
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// QUO resource
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return RESTYPE_QUO;
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} else if (resourceName.hasPrefix("I")) {
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// I resource
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return RESTYPE_I;
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} else if (resourceName.hasPrefix("OB")) {
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// OB resource
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return RESTYPE_OB;
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} else if (resourceName.hasPrefix("FONT")) {
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// FONT resource
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return RESTYPE_FONT;
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} else if (resourceName.hasPrefix("SOUND")) {
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// SOUND resource
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return RESTYPE_SOUND;
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} else if (resourceName.hasPrefix("SPCHC")) {
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// SPEECH resource
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return RESTYPE_SPEECH;
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}
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// Check for a known extension
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const char *extPos = strchr(resourceName.c_str(), '.');
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if (extPos) {
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++extPos;
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if (!strcmp(extPos, "FL") || !strcmp(extPos, "LBM") || !strcmp(extPos, "ANM") ||
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!strcmp(extPos, "AA") || !strcmp(extPos, "SS")) {
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return RESTYPE_HAS_EXT;
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}
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}
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return RESTYPE_NO_EXT;
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}
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/*------------------------------------------------------------------------*/
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void Resources::init(MADSEngine *vm) {
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SearchMan.add("HAG", new HagArchive());
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}
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Common::String Resources::formatName(RESPREFIX resType, int id, const Common::String &ext) {
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Common::String result = "*";
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if (resType == 3 && !id) {
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id = id / 100;
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}
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if (!ext.empty()) {
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switch (resType) {
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case RESPREFIX_GL:
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result += "GL000";
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break;
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case RESPREFIX_SC:
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result += Common::String::format("SC%.3d", id);
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break;
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case RESPREFIX_RM:
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result += Common::String::format("RM%.3d", id);
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break;
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default:
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break;
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}
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result += ext;
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}
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return result;
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}
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Common::String Resources::formatName(int prefix, char asciiCh, int id, EXTTYPE extType,
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const Common::String &suffix) {
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Common::String result;
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if (prefix <= 0) {
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result = "*";
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} else {
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result = Common::String::format("%s%.3d",
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(prefix < 100) ? "*SC" : "*RM", prefix);
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}
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result += Common::String::format("%c%d", asciiCh, id);
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if (!suffix.empty())
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result += suffix;
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switch (extType) {
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case EXT_SS:
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result += ".SS";
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break;
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case EXT_AA:
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result += ".AA";
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break;
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case EXT_DAT:
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result += ".DAT";
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break;
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case EXT_HH:
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result += ".HH";
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break;
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case EXT_ART:
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result += ".ART";
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break;
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case EXT_INT:
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result += ".INT";
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break;
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default:
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break;
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}
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return result;
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}
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Common::String Resources::formatResource(const Common::String &resName,
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const Common::String &hagFilename) {
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// int v1 = 0, v2 = 0;
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if (resName.hasPrefix("*")) {
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// Resource file specified
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error("TODO: formatResource");
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} else {
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// File outside of hag file
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return resName;
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}
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}
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Common::String Resources::formatAAName(int idx) {
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return formatName(0, 'I', idx, EXT_AA, "");
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}
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/*------------------------------------------------------------------------*/
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void File::openFile(const Common::String &filename) {
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if (!Common::File::open(filename))
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error("Could not open file - %s", filename.c_str());
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}
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} // End of namespace MADS
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