mirror of
https://github.com/libretro/scummvm.git
synced 2025-01-05 09:10:29 +00:00
123 lines
3.8 KiB
C++
123 lines
3.8 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.
|
|
*
|
|
*/
|
|
|
|
#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 "engines/advancedDetector.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
|