mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-21 09:21:08 +00:00
91 lines
2.7 KiB
C++
91 lines
2.7 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.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* This code is based on original Hugo Trilogy source code
|
|
*
|
|
* Copyright (c) 1989-1995 David P. Gray
|
|
*
|
|
*/
|
|
|
|
#include "common/debug.h"
|
|
#include "common/system.h"
|
|
#include "common/textconsole.h"
|
|
|
|
#include "hugo/hugo.h"
|
|
#include "hugo/file.h"
|
|
#include "hugo/util.h"
|
|
|
|
namespace Hugo {
|
|
FileManager_v1w::FileManager_v1w(HugoEngine *vm) : FileManager_v2w(vm) {
|
|
}
|
|
|
|
FileManager_v1w::~FileManager_v1w() {
|
|
}
|
|
|
|
/**
|
|
* Open and read in an overlay file, close file
|
|
*/
|
|
void FileManager_v1w::readOverlay(const int screenNum, image_pt image, ovl_t overlayType) {
|
|
debugC(1, kDebugFile, "readOverlay(%d, ...)", screenNum);
|
|
|
|
image_pt tmpImage = image; // temp ptr to overlay file
|
|
_sceneryArchive1.seek((uint32)screenNum * sizeof(sceneBlock_t), SEEK_SET);
|
|
|
|
sceneBlock_t sceneBlock; // Database header entry
|
|
sceneBlock.scene_off = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.scene_len = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.b_off = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.b_len = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.o_off = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.o_len = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.ob_off = _sceneryArchive1.readUint32LE();
|
|
sceneBlock.ob_len = _sceneryArchive1.readUint32LE();
|
|
|
|
uint32 i = 0;
|
|
switch (overlayType) {
|
|
case kOvlBoundary:
|
|
_sceneryArchive1.seek(sceneBlock.b_off, SEEK_SET);
|
|
i = sceneBlock.b_len;
|
|
break;
|
|
case kOvlOverlay:
|
|
_sceneryArchive1.seek(sceneBlock.o_off, SEEK_SET);
|
|
i = sceneBlock.o_len;
|
|
break;
|
|
case kOvlBase:
|
|
_sceneryArchive1.seek(sceneBlock.ob_off, SEEK_SET);
|
|
i = sceneBlock.ob_len;
|
|
break;
|
|
default:
|
|
error("Bad overlayType: %d", overlayType);
|
|
break;
|
|
}
|
|
if (i == 0) {
|
|
memset(image, 0, sizeof(image));
|
|
return;
|
|
}
|
|
_sceneryArchive1.read(tmpImage, kOvlSize);
|
|
}
|
|
|
|
} // End of namespace Hugo
|
|
|