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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.
*
* $URL$
* $Id$
*
*/
#ifndef SCI_GRAPHICS_SCREEN_H
#define SCI_GRAPHICS_SCREEN_H
#include "sci/sci.h"
#include "sci/graphics/helpers.h"
namespace Sci {
#define SCI_SCREEN_MAXHEIGHT 400
#define SCI_SCREEN_MASK_VISUAL 1
#define SCI_SCREEN_MASK_PRIORITY 2
#define SCI_SCREEN_MASK_CONTROL 4
#define SCI_SCREEN_MASK_DISPLAY 8 // not official sierra sci
#define SCI_SCREEN_MASK_ALL SCI_SCREEN_MASK_VISUAL|SCI_SCREEN_MASK_PRIORITY|SCI_SCREEN_MASK_CONTROL
#define SCI_SCREEN_UNDITHERMEMORIAL_SIZE 256
/**
* Screen class, actually creates 3 (4) screens internally - which is visual/display (for the user),
* priority (contains priority information) and control (contains control information). Handles all operations to it
* and copies parts of visual/display screen to the actual screen, so the user can really see it.
*/
class GfxScreen {
public:
GfxScreen(ResourceManager *resMan, int16 width = 320, int16 height = 200, bool upscaledHires = false);
~GfxScreen();
uint16 getWidth() { return _width; };
uint16 getHeight() { return _height; };
uint16 getDisplayWidth() { return _displayWidth; };
uint16 getDisplayHeight() { return _displayHeight; };
byte getColorWhite() { return _colorWhite; };
byte getColorDefaultVectorData() { return _colorDefaultVectorData; };
void copyToScreen();
void copyFromScreen(byte *buffer);
void kernelSyncWithFramebuffer();
void copyRectToScreen(const Common::Rect &rect);
void copyDisplayRectToScreen(const Common::Rect &rect);
void copyRectToScreen(const Common::Rect &rect, int16 x, int16 y);
byte getDrawingMask(byte color, byte prio, byte control);
void putPixel(int x, int y, byte drawMask, byte color, byte prio, byte control);
void putPixelOnDisplay(int x, int y, byte color);
void drawLine(Common::Point startPoint, Common::Point endPoint, byte color, byte prio, byte control);
void drawLine(int16 left, int16 top, int16 right, int16 bottom, byte color, byte prio, byte control) {
drawLine(Common::Point(left, top), Common::Point(right, bottom), color, prio, control);
}
bool getUpscaledHires() {
return _upscaledHires;
}
byte getVisual(int x, int y);
byte getPriority(int x, int y);
byte getControl(int x, int y);
byte isFillMatch(int16 x, int16 y, byte drawMask, byte t_color, byte t_pri, byte t_con);
int bitsGetDataSize(Common::Rect rect, byte mask);
void bitsSave(Common::Rect rect, byte mask, byte *memoryPtr);
void bitsGetRect(byte *memoryPtr, Common::Rect *destRect);
void bitsRestore(byte *memoryPtr);
void setPalette(Palette*pal);
void setVerticalShakePos(uint16 shakePos);
void scale2x(byte *src, byte *dst, int16 srcWidth, int16 srcHeight);
void dither(bool addToFlag);
void debugUnditherSetState(bool flag);
int16 *unditherGetMemorial();
void debugShowMap(int mapNo);
int _picNotValid; // possible values 0, 1 and 2
int _picNotValidSci11; // another variable that is used by kPicNotValid in sci1.1
int16 kernelPicNotValid(int16 newPicNotValid);
private:
uint16 _width;
uint16 _height;
uint _pixels;
uint16 _displayWidth;
uint16 _displayHeight;
uint _displayPixels;
byte _colorWhite;
byte _colorDefaultVectorData;
void bitsRestoreScreen(Common::Rect rect, byte *&memoryPtr, byte *screen, uint16 screenWidth);
void bitsRestoreDisplayScreen(Common::Rect rect, byte *&memoryPtr);
void bitsSaveScreen(Common::Rect rect, byte *screen, uint16 screenWidth, byte *&memoryPtr);
void bitsSaveDisplayScreen(Common::Rect rect, byte *&memoryPtr);
bool _unditherState;
int16 _unditherMemorial[SCI_SCREEN_UNDITHERMEMORIAL_SIZE];
// these screens have the real resolution of the game engine (320x200 for SCI0/SCI1/SCI11 games, 640x480 for SCI2 games)
// SCI0 games will be dithered in here at any time
byte *_visualScreen;
byte *_priorityScreen;
byte *_controlScreen;
// this screen is the one that is actually displayed to the user. It may be 640x480 for japanese SCI1 games
// SCI0 games may be undithered in here. Only read from this buffer for Save/ShowBits usage.
byte *_displayScreen;
Common::Rect getScaledRect(Common::Rect rect);
ResourceManager *_resMan;
// this is a pointer to the currently active screen (changing it only required for debug purposes)
byte *_activeScreen;
bool _upscaledHires;
};
} // End of namespace Sci
#endif
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