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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.
*
* $URL$
* $Id$
*
*/
// RSC Resource file management module (SAGA 1, used in ITE)
#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"
namespace Saga {
struct MacResMap {
int16 resAttr;
int16 typeOffset;
int16 nameOffset;
int16 numTypes;
};
struct MacResource {
int16 id;
int16 nameOffset;
byte attr;
int32 dataOffset;
byte name[255];
};
struct MacResType {
uint32 id;
int16 items;
int16 maxItemId;
int16 offset;
MacResource *resources;
};
#define ID_MIDI MKID_BE('Midi')
uint32 Resource_RSC::convertResourceId(uint32 resourceId) {
if (_vm->isMacResources()) {
if (resourceId > 1537) {
return resourceId - 2;
} else {
if (resourceId == 1535 || resourceId == 1536) {
error("Wrong resource number %d for Mac ITE", resourceId);
}
}
}
return resourceId;
}
bool Resource_RSC::loadMacContext(ResourceContext *context) {
int32 macDataSize, macDataSizePad;
int32 macResSize, macResSizePad;
int32 macResOffset;
uint32 macMapLength;
uint32 macDataLength;
uint32 macMapOffset;
uint32 macDataOffset;
MacResMap macResMap;
MacResType *macResTypes;
MacResType *macResType;
MacResource *macResource;
int i, j;
byte macNameLen;
bool notSagaContext = false;
if (context->file->size() < RSC_MIN_FILESIZE + MAC_BINARY_HEADER_SIZE) {
return false;
}
if (context->file->readByte() != 0) {
return false;
}
context->file->readByte(); //MAX Name Len
context->file->seek(74);
if (context->file->readByte() != 0) {
return false;
}
context->file->seek(82);
if (context->file->readByte() != 0) {
return false;
}
macDataSize = context->file->readSint32BE();
macResSize = context->file->readSint32BE();
macDataSizePad = (((macDataSize + 127) >> 7) << 7);
macResSizePad = (((macResSize + 127) >> 7) << 7);
macResOffset = MAC_BINARY_HEADER_SIZE + macDataSizePad;
context->file->seek(macResOffset);
macDataOffset = context->file->readUint32BE() + macResOffset;
macMapOffset = context->file->readUint32BE() + macResOffset;
macDataLength = context->file->readUint32BE();
macMapLength = context->file->readUint32BE();
if (macDataOffset >= (uint)context->file->size() || macMapOffset >= (uint)context->file->size() ||
macDataLength + macMapLength > (uint)context->file->size()) {
return false;
}
context->file->seek(macMapOffset + 22);
macResMap.resAttr = context->file->readUint16BE();
macResMap.typeOffset = context->file->readUint16BE();
macResMap.nameOffset = context->file->readUint16BE();
macResMap.numTypes = context->file->readUint16BE();
macResMap.numTypes++;
context->file->seek(macMapOffset + macResMap.typeOffset + 2);
macResTypes = (MacResType *)calloc(macResMap.numTypes, sizeof(*macResTypes));
for (i = macResMap.numTypes, macResType = macResTypes; i > 0; i--, macResType++) {
macResType->id = context->file->readUint32BE();
macResType->items = context->file->readUint16BE();
macResType->offset = context->file->readUint16BE();
macResType->items++;
macResType->resources = (MacResource*)calloc(macResType->items, sizeof(*macResType->resources));
}
for (i = macResMap.numTypes, macResType = macResTypes; i > 0; i--, macResType++) {
context->file->seek(macResType->offset + macMapOffset + macResMap.typeOffset);
for (j = macResType->items, macResource = macResType->resources; j > 0; j--, macResource++) {
macResource->id = context->file->readUint16BE();
macResource->nameOffset = context->file->readUint16BE();
macResource->dataOffset = context->file->readUint32BE();
macResSize = context->file->readUint32BE();
macResource->attr = macResource->dataOffset >> 24;
macResource->dataOffset &= 0xFFFFFF;
if (macResource->id > macResType->maxItemId) {
macResType->maxItemId = macResource->id;
}
}
for (j = macResType->items, macResource = macResType->resources; j > 0; j--, macResource++) {
if (macResource->nameOffset != -1) {
context->file->seek(macResource->nameOffset + macMapOffset + macResMap.nameOffset);
macNameLen = context->file->readByte();
context->file->read(macResource->name, macNameLen);
}
}
}
//
for (i = macResMap.numTypes, macResType = macResTypes; i > 0; i--, macResType++) {
//getting offsets & sizes of midi
if (((context->fileType & GAME_MUSICFILE_GM) > 0) && (macResType->id == ID_MIDI)) {
context->count = macResType->maxItemId + 1;
context->table = (ResourceData *)calloc(context->count, sizeof(*context->table));
for (j = macResType->items, macResource = macResType->resources; j > 0; j--, macResource++) {
context->file->seek(macDataOffset + macResource->dataOffset);
context->table[macResource->id].size = context->file->readUint32BE();
context->table[macResource->id].offset = context->file->pos();
}
notSagaContext = true;
break;
}
}
//free
for (i = 0; i < macResMap.numTypes; i++) {
free(macResTypes[i].resources);
}
free(macResTypes);
if ((!notSagaContext) && (!loadResContext(context, MAC_BINARY_HEADER_SIZE, macDataSize))) {
return false;
}
return true;
}
} // End of namespace Saga
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