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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 Ivan Dubrov
* Copyright (C) 2004-2006 The ScummVM project
*
* 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 GOB_GLOBAL_H
#define GOB_GLOBAL_H
#include "gob/dataio.h"
#include "gob/video.h"
#include "common/file.h"
namespace Gob {
#define VIDMODE_CGA 0x05
#define VIDMODE_EGA 0x0d
#define VIDMODE_VGA 0x13
#define VIDMODE_HER 7
#define PROAUDIO_FLAG 0x10
#define ADLIB_FLAG 0x08
#define BLASTER_FLAG 0x04
#define INTERSOUND_FLAG 0x02
#define SPEAKER_FLAG 0x01
#define MIDI_FLAG 0x4000
#define NO 0
#define YES 1
#define UNDEF 2
#define F1_KEY 0x3b00
#define F2_KEY 0x3c00
#define F3_KEY 0x3d00
#define F4_KEY 0x3e00
#define F5_KEY 0x3f00
#define F6_KEY 0x4000
#define ESCAPE 0x001b
#define ENTER 0x000d
#define MAX_FILES 30
/* Video drivers */
#define UNK_DRIVER 0
#define VGA_DRIVER 1
#define EGA_DRIVER 2
#define CGA_DRIVER 3
#define HER_DRIVER 4
class Global {
public:
char _pressedKeys[128];
char _useMouse;
int16 _mousePresent;
int16 _presentCGA;
int16 _presentEGA;
int16 _presentVGA;
int16 _presentHER;
int16 _videoMode;
int16 _fakeVideoMode;
int16 _disableVideoCfg;
uint16 _soundFlags;
int16 _disableSoundCfg;
int16 _blasterPort;
uint16 _disableLangCfg;
uint16 _language;
uint16 _languageWanted;
// Timer variables
int32 _startTime;
int16 _timer_delta;
int16 _frameWaitTime;
int32 _startFrameTime;
// Mouse
int16 _disableMouseCfg;
int16 _mouseXShift;
int16 _mouseYShift;
int16 _mouseMaxCol;
int16 _mouseMaxRow;
// Timer and delays
int16 _delayTime;
// Joystick
char _useJoystick;
// Files
Common::File _filesHandles[MAX_FILES];
// Data files
struct DataIO::ChunkDesc *_dataFiles[MAX_DATA_FILES];
int16 _numDataChunks[MAX_DATA_FILES];
int16 _dataFileHandles[MAX_DATA_FILES];
int32 _chunkPos[MAX_SLOT_COUNT * MAX_DATA_FILES];
int32 _chunkOffset[MAX_SLOT_COUNT * MAX_DATA_FILES];
int32 _chunkSize[MAX_SLOT_COUNT * MAX_DATA_FILES];
char _isCurrentSlot[MAX_SLOT_COUNT * MAX_DATA_FILES];
int32 _packedSize;
int16 _sprAllocated;
int16 _primaryWidth;
int16 _primaryHeight;
int16 _doRangeClamp;
char _redPalette[256];
char _greenPalette[256];
char _bluePalette[256];
int16 _setAllPalette;
Video::SurfaceDesc _primarySurfDesc;
Video::SurfaceDesc *_pPrimarySurfDesc;
int16 _oldMode;
char _dontSetPalette;
Video::PalDesc *_pPaletteDesc;
int16 _unusedPalette1[18];
int16 _unusedPalette2[16];
Video::Color _vgaPalette[16];
Video::PalDesc _paletteStruct;
int16 _debugFlag;
int16 _inVM;
int16 _colorCount;
char _inter_resStr[200];
int32 _inter_resVal;
byte *_inter_variablesSizes; // 0: single byte, 1: two bytes, 3: four bytes
char *_inter_variables;
char *_inter_execPtr;
int16 _inter_animDataSize;
int16 _inter_mouseX;
int16 _inter_mouseY;
// While using the notepad or changing the font, the original executable
// temporarily dumps Draw::_backSurface to a file. Since that's not really
// a nice thing to do, we work around it.
Video::SurfaceDesc *_savedBack;
Video::Color _savedPal[256];
int32 _savedBackSize;
inline void clearVars(uint32 count)
{
uint32 i;
for (i = 0; i < count; i++) {
_inter_variablesSizes[i * 4] = 3;
_inter_variablesSizes[i * 4 + 1] = 0;
_inter_variablesSizes[i * 4 + 2] = 0;
_inter_variablesSizes[i * 4 + 3] = 0;
_inter_variables[i * 4] = 0;
_inter_variables[i * 4 + 1] = 0;
_inter_variables[i * 4 + 2] = 0;
_inter_variables[i * 4 + 3] = 0;
}
}
inline void writeVarSizeStr(uint32 offset, uint32 len) {
uint32 i;
uint32 inVar;
uint32 varOff;
inVar = offset % 4;
varOff = (offset >> 2) << 2;
for (i = 0; i < 4; i++) {
if (_inter_variablesSizes[varOff + i] == 3)
_inter_variablesSizes[varOff + i] = 0;
else if ((inVar == (i+1)) && (_inter_variablesSizes[varOff + i] == 1))
_inter_variablesSizes[varOff + i] = 0;
}
memset(_inter_variablesSizes + offset, 0, len);
}
inline void writeVar(uint32 offset, uint32 val) {
(*(uint32 *)(_inter_variables + offset)) = val;
writeVarSize(offset, 3);
}
inline void writeVar(uint32 offset, uint16 val) {
(*(uint16 *)(_inter_variables + offset)) = val;
writeVarSize(offset, 1);
}
inline void writeVar(uint32 offset, uint8 val) {
(*(uint8 *)(_inter_variables + offset)) = val;
writeVarSize(offset, 0);
}
inline void writeVar(uint32 offset, const char *str) {
writeVarSizeStr(offset, strlen(str));
strcpy(_inter_variables + offset, str);
}
Global(GobEngine *vm);
~Global();
protected:
GobEngine *_vm;
inline void writeVarSize(uint32 offset, byte n) {
uint32 i;
uint32 inVar;
uint32 varOff;
inVar = offset % 4;
varOff = (offset >> 2) << 2;
for (i = 0; i < 4; i++) {
if (_inter_variablesSizes[varOff + i] == 3)
_inter_variablesSizes[varOff + i] = 0;
else if ((inVar == (i+1)) && (_inter_variablesSizes[varOff + i] == 1))
_inter_variablesSizes[varOff + i] = 0;
}
_inter_variablesSizes[offset] = n;
for (; n > 0; n--)
_inter_variablesSizes[offset + n] = 0;
}
};
} // End of namespace Gob
#endif
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