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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.
*
*/
#ifndef ACCESS_SCREEN_H
#define ACCESS_SCREEN_H
#include "common/scummsys.h"
#include "common/rect.h"
#include "common/stream.h"
#include "access/asurface.h"
namespace Access {
class AccessEngine;
#define PALETTE_COUNT 256
#define PALETTE_SIZE (256 * 3)
struct ScreenSave {
int _clipWidth;
int _clipHeight;
int _windowXAdd;
int _windowYAdd;
Common::Point _scroll;
int _scrollCol;
int _scrollRow;
Common::Point _bufferStart;
int _screenYOff;
};
class Screen: public ASurface {
private:
AccessEngine *_vm;
byte _tempPalette[PALETTE_SIZE];
byte _rawPalette[PALETTE_SIZE];
byte _savedPalettes[2][PALETTE_SIZE];
int _savedPaletteCount;
int _vesaCurrentWin;
int _currentPanel;
Common::Point _msVirtualOffset;
Common::Point _virtualOffsetsTable[4];
bool _hideFlag;
ScreenSave _screenSave;
void updatePalette();
public:
int _vesaMode;
bool _loadPalFlag;
int _startColor, _numColors;
Common::Point _bufferStart;
int _scrollCol, _scrollRow;
int _windowXAdd, _windowYAdd;
int _screenYOff;
byte _manPal[0x60];
byte _scaleTable1[256];
byte _scaleTable2[256];
int _vWindowWidth;
int _vWindowHeight;
int _vWindowBytesWide;
int _bufferBytesWide;
int _vWindowLinesTall;
bool _screenChangeFlag;
public:
Screen(AccessEngine *vm);
virtual ~Screen() {}
void setDisplayScan();
void setPanel(int num);
/**
* Update the underlying screen
*/
void updateScreen();
/**
* Fade out screen
*/
void forceFadeOut();
/**
* Fade in screen
*/
void forceFadeIn();
void fadeOut() { forceFadeOut(); }
void fadeIn() { forceFadeIn(); }
void clearScreen() { clearBuffer(); }
/**
* Set the initial palette
*/
void setInitialPalettte();
void loadPalette(Common::SeekableReadStream *stream);
void loadPalette(int fileNum, int subfile);
void setPalette();
void loadRawPalette(Common::SeekableReadStream *stream);
void savePalette();
void restorePalette();
/**
* Copy a buffer to the screen
*/
void copyBuffer(const byte *data);
void setBufferScan();
void setScaleTable(int scale);
/**
* Save all the screen display state variables
*/
void saveScreen();
/**
* Restores previously saved screen display state variables
*/
void restoreScreen();
void moveBufferLeft();
void moveBufferDown();
void moveBufferUp();
};
} // End of namespace Access
#endif /* ACCESS_SCREEN_H */
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