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/* 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.
*
*/
#ifdef ENABLE_SAGA2
// HRS Resource file management module (SAGA 2, used in DINO and FTA2)
#include "saga/saga.h"
#include "saga/actor.h"
#include "saga/animation.h"
#include "saga/interface.h"
#include "saga/music.h"
#include "saga/resource.h"
#include "saga/scene.h"
#include "saga/sndres.h"
#include "common/endian.h"
namespace Saga {
void ResourceContext_HRS::readCategory(ResourceData &element) {
element.id = _file.readUint32BE();
element.offset = _file.readUint32LE();
element.size = _file.readUint32LE();
element.category = 0;
debug(3, "Category: id %u, offset %u, size %u", element.id, (uint)element.offset, (uint)element.size);
}
void ResourceContext_HRS::readEntry(ResourceData &element) {
element.id = _file.readUint32BE();
element.offset = _file.readUint32LE();
element.size = _file.readUint32LE();
element.category = getCategory(_file.pos());
debug(3, "Entry: id %u, offset %u, size %u", element.id, (uint)element.offset, (uint)element.size);
}
uint32 ResourceContext_HRS::getCategory(uint32 resourceOffset) {
for (int i = _categories.size() - 1; i >= 0; --i) {
if (resourceOffset >= _categories[i].offset)
return _categories[i].id;
}
error("Unknown category for offset %d", resourceOffset);
}
static bool categorySortHelper(const ResourceData &r1, const ResourceData &r2) {
return r1.offset < r2.offset;
}
bool ResourceContext_HRS::loadResV2(uint32 contextSize) {
ResourceData origin;
uint32 firstEntryOffset;
uint32 tableSize;
int i, count;
const uint32 resourceSize = 4 + 4 + 4; // id, size, offset
debug(3, "Context %s =====", _fileName);
_file.seek(0, SEEK_SET);
readCategory(origin);
// Check if the file is valid
if (origin.id != MKTAG('H','R','E','S')) { // header
return false;
}
// Read offset of first entry
_file.seek(origin.offset - sizeof(uint32), SEEK_SET);
firstEntryOffset = _file.readUint32LE();
// Allocate buffers for table, categories and data
_categories.resize(origin.size / resourceSize);
tableSize = origin.offset - firstEntryOffset - sizeof(uint32);
_table.resize(tableSize / resourceSize);
// Read categories
count = origin.size / resourceSize;
debug(3, "File: %s, categories: %d =====", _file.getName(), count);
for (i = 0; i < count; i++) {
readCategory(_categories[i]);
//uint32 id = _categories[i].id;
//debug("%i: %c%c%c%c, offset: %d, size: %d", i, (id >> 24), (id >> 16) & 0xFF, (id >> 8) & 0xFF, id & 0xFF, _categories[i].offset, _categories[i].size);
}
Common::sort(_categories.begin(), _categories.end(), categorySortHelper);
_file.seek(firstEntryOffset, SEEK_SET);
// Read table entries
count = tableSize / resourceSize;
debug(3, "File: %s, entries: %d =====", _file.getName(), count);
for (i = 0; i < count; i++) {
readEntry(_table[i]);
//debug("%i: offset: %d, size: %d", i, _table[i].offset, _table[i].size);
}
return true;
}
} // End of namespace Saga
#endif
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