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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.
*
*/
/*
* This code is based on original Hugo Trilogy source code
*
* Copyright (c) 1989-1995 David P. Gray
*
*/
#ifndef HUGO_DISPLAY_H
#define HUGO_DISPLAY_H
namespace Hugo {
enum OverlayState {kOvlUndef, kOvlForeground, kOvlBackground}; // Overlay state
static const int kCenter = -1; // Used to center text in x
class Screen {
public:
struct Rect { // Rectangle used in Display list
int16 _x; // Position in dib
int16 _y; // Position in dib
int16 _dx; // width
int16 _dy; // height
};
Screen(HugoEngine *vm);
virtual ~Screen();
virtual void loadFont(int16 fontId) = 0;
virtual void loadFontArr(Common::ReadStream &in) = 0;
int16 fontHeight() const;
int16 stringLength(const char *s) const;
void displayBackground();
void displayFrame(const int sx, const int sy, Seq *seq, const bool foreFl);
void displayList(Dupdate update, ...);
void displayRect(const int16 x, const int16 y, const int16 dx, const int16 dy);
void drawBoundaries();
void drawRectangle(const bool filledFl, const int16 x1, const int16 y1, const int16 x2, const int16 y2, const int color);
void drawShape(const int x, const int y, const int color1, const int color2);
void drawStatusText();
void freeScreen();
void hideCursor();
void initDisplay();
void initNewScreenDisplay();
void loadPalette(Common::ReadStream &in);
void moveImage(ImagePtr srcImage, const int16 x1, const int16 y1, const int16 dx, int16 dy, const int16 width1, ImagePtr dstImage, const int16 x2, const int16 y2, const int16 width2);
void remapPal(uint16 oldIndex, uint16 newIndex);
void resetInventoryObjId();
void restorePal(Common::ReadStream *f);
void savePal(Common::WriteStream *f) const;
void setBackgroundColor(const uint16 color);
void setCursorPal();
void selectInventoryObjId(const int16 objId);
void shadowStr(int16 sx, const int16 sy, const char *s, const byte color);
void showCursor();
void userHelp() const;
void writeStr(int16 sx, const int16 sy, const char *s, const byte color);
Icondib &getIconBuffer();
Viewdib &getBackBuffer();
Viewdib &getBackBufferBackup();
Viewdib &getFrontBuffer();
Viewdib &getGUIBuffer();
protected:
HugoEngine *_vm;
static const int kRectListSize = 16; // Size of add/restore rect lists
static const int kBlitListSize = kRectListSize * 2; // Size of dirty rect blit list
static const int kShapeSize = 24;
static const int kFontLength = 128; // Number of chars in font
static const int kFontSize = 1200; // Max size of font data
static const int kNumFonts = 3; // Number of dib fonts
static const byte stdMouseCursorHeight = 20;
static const byte stdMouseCursorWidth = 12;
bool fontLoadedFl[kNumFonts];
// Fonts used in dib (non-GDI)
byte *_arrayFont[kNumFonts];
byte _fnt; // Current font number
byte _fontdata[kNumFonts][kFontSize]; // Font data
byte *_font[kNumFonts][kFontLength]; // Ptrs to each char
byte *_mainPalette;
int16 _arrayFontSize[kNumFonts];
Viewdib _frontBuffer;
inline bool isInX(const int16 x, const Rect *rect) const;
inline bool isInY(const int16 y, const Rect *rect) const;
inline bool isOverlapping(const Rect *rectA, const Rect *rectB) const;
virtual OverlayState findOvl(Seq *seqPtr, ImagePtr dstPtr, uint16 y) = 0;
private:
byte *_curPalette;
byte _iconImage[kInvDx * kInvDy];
byte _paletteSize;
Icondib _iconBuffer; // Inventory icon DIB
int16 mergeLists(Rect *list, Rect *blist, const int16 len, int16 blen);
int16 center(const char *s) const;
Viewdib _backBuffer;
Viewdib _GUIBuffer; // User interface images
Viewdib _backBufferBackup; // Backup _backBuffer during inventory
// Formerly static variables used by displayList()
int16 _dlAddIndex, _dlRestoreIndex; // Index into add/restore lists
Rect _dlRestoreList[kRectListSize]; // The restore list
Rect _dlAddList[kRectListSize]; // The add list
Rect _dlBlistList[kBlitListSize]; // The blit list
//
void createPal();
void merge(const Rect *rectA, Rect *rectB);
void writeChr(const int sx, const int sy, const byte color, const char *local_fontdata);
};
class Screen_v1d : public Screen {
public:
Screen_v1d(HugoEngine *vm);
~Screen_v1d();
void loadFont(int16 fontId);
void loadFontArr(Common::ReadStream &in);
protected:
OverlayState findOvl(Seq *seqPtr, ImagePtr dstPtr, uint16 y);
};
class Screen_v1w : public Screen {
public:
Screen_v1w(HugoEngine *vm);
~Screen_v1w();
void loadFont(int16 fontId);
void loadFontArr(Common::ReadStream &in);
protected:
OverlayState findOvl(Seq *seqPtr, ImagePtr dstPtr, uint16 y);
};
} // End of namespace Hugo
#endif //HUGO_DISPLAY_H
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