scummvm/engines/pink/file.cpp
2018-06-28 23:51:32 +02:00

160 lines
3.9 KiB
C++

/* 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 "common/str.h"
#include "pink/pink.h"
#include "pink/objects/pages/game_page.h"
namespace Pink {
OrbFile::OrbFile()
: File(), _timestamp(0),
_tableOffset(0),
_tableSize(0),
_table(nullptr) {}
OrbFile::~OrbFile() {
delete[] _table;
}
bool OrbFile::open(const Common::String &name) {
if (!File::open(name))
return false;
if (readUint32BE() != 'ORB\0'){
return false;
}
uint16 minor = readUint16LE();
uint16 major = readUint16LE();
debug("Orb v%hu.%hu loaded", major, minor);
if (major != kOrbMajorVersion || minor != kOrbMinorVersion){
return false;
}
if (!(_timestamp = readUint32LE())){
return false;
}
_tableOffset = readUint32LE();
_tableSize = readUint32LE();
_table = new ObjectDescription[_tableSize];
seek(_tableOffset);
for (uint i = 0; i < _tableSize; ++i) {
_table[i].load(*this);
}
return true;
}
void OrbFile::loadGame(PinkEngine *game) {
seekToObject(kPinkGame);
Archive archive(this);
archive.mapObject(reinterpret_cast<Object*>(game)); // hack
game->load(archive);
}
void OrbFile::loadObject(Object *obj, const Common::String &name) {
seekToObject(name.c_str());
Archive archive(this);
obj->load(archive);
}
void OrbFile::loadObject(Object *obj, ObjectDescription *objDesc) {
seek(objDesc->objectsOffset);
Archive archive(this);
obj->load(archive);
}
uint32 OrbFile::getTimestamp() {
return _timestamp;
}
void OrbFile::seekToObject(const char *name) {
ObjectDescription *desc = getObjDesc(name);
seek(desc->objectsOffset);
}
static int objDescComp(const void *a, const void *b) {
return scumm_stricmp((char *) a, (char *) b);
}
ObjectDescription *OrbFile::getObjDesc(const char *name){
ObjectDescription *desc = (ObjectDescription*) bsearch(name, _table, _tableSize, sizeof(ObjectDescription), objDescComp);
assert(desc != nullptr);
return desc;
}
ResourceDescription *OrbFile::getResDescTable(ObjectDescription *objDesc){
ResourceDescription *table = new ResourceDescription[objDesc->resourcesCount];
seek(objDesc->resourcesOffset);
for (uint i = 0; i < objDesc->resourcesCount; ++i) {
table[i].load(*this);
}
return table;
}
bool BroFile::open(const Common::String &name, uint32 orbTimestamp) {
if (!File::open(name) || readUint32BE() != 'BRO\0')
return false;
uint16 minor = readUint16LE();
uint16 major = readUint16LE();
debug("Bro v%hu.%hu loaded", major, minor);
if (major != kBroMajorVersion || minor != kBroMinorVersion){
return false;
}
uint32 timestamp = readUint32LE();
return timestamp == orbTimestamp;
}
void ObjectDescription::load(Common::File &file) {
file.read(name, sizeof(name));
objectsOffset = file.readUint32LE();
objectsCount = file.readUint32LE();
resourcesOffset = file.readUint32LE();
resourcesCount = file.readUint32LE();
}
void ResourceDescription::load(Common::File &file) {
file.read(name, sizeof(name));
offset = file.readUint32LE();
size = file.readUint32LE();
inBro = (bool) file.readUint16LE();
}
} // End of namespace Pink