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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.
*
* $URL$
* $Id$
*
*/
#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 readElement(Common::File *file, Saga::ResourceData *element) {
element->id = file->readUint32BE();
element->offset = file->readUint32LE();
element->size = file->readUint32LE();
debug(3, "Entry: id %u, offset %u, size %u", element->id, (uint)element->offset, (uint)element->size);
}
bool Resource_HRS::loadResContext_v2(ResourceContext *context, uint32 contextSize) {
ResourceData *origin = new ResourceData();
uint32 firstEntryOffset;
uint32 tableSize;
int i, count;
const uint32 resourceSize = 4 + 4 + 4; // id, size, offset
debug(3, "Context %s =====", context->fileName);
context->file->seek(0, SEEK_SET);
readElement(context->file, origin);
// Check if the file is valid
if (origin->id != MKID_BE('HRES')) { // header
free(origin);
return false;
}
// Read offset of first entry
context->file->seek(origin->offset - sizeof(uint32), SEEK_SET);
firstEntryOffset = context->file->readUint32LE();
// Allocate buffers for table, categories and data
context->categories = (ResourceData *) calloc(origin->size / resourceSize, sizeof(*context->categories));
tableSize = origin->offset - firstEntryOffset - sizeof(uint32);
context->table = (ResourceData *) calloc(tableSize / resourceSize, sizeof(*context->table));
if (context->categories == NULL || context->table == NULL) {
free(origin);
return false;
}
// Read categories
count = origin->size / resourceSize;
debug(3, "Categories: %d =====", count);
for (i = 0; i < count; i++) {
readElement(context->file, &context->categories[i]);
}
context->file->seek(firstEntryOffset, SEEK_SET);
// Read table entries
count = tableSize / resourceSize;
debug(3, "Entries: %d =====", count);
for (i = 0; i < count; i++) {
readElement(context->file, &context->table[i]);
}
context->count = tableSize / resourceSize;
free(origin);
return true;
}
} // End of namespace Saga
#endif
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