/*
* ==========================================================================
* Name: nt_fulsc.h
* Author: Jerry Sexton
* Derived From:
* Created On: 5th February 1992
* Purpose: This header file contains definitions etc. for
* full-screen graphics modules.
*
* (c)Copyright Insignia Solutions Ltd., 1992. All rights reserved.
* ==========================================================================
*/
/*
* ==========================================================================
* Macros
* ==========================================================================
*/
#define ErrorExit() DisplayErrorTerm(EHS_FUNC_FAILED,GetLastError(),__FILE__,__LINE__);
#define CURRENT_OFFSET(r) ((DWORD) (r) - (DWORD) videoState)
#define GET_OFFSET(offset) ((BYTE *) videoState + videoState->offset)
#define MID_VAL(x, y) (x + (y - x) / 2)
#define NUM_SEQ_REGS 5
#define NUM_CRTC_REGS 25
#define NUM_GC_REGS 9
#define NUM_AC_REGS 21
#define NUM_DAC_REGS 256
#define STATELENGTH sizeof(VIDEO_HARDWARE_STATE_HEADER)
#define LATCHLENGTH 4
#define RGBLENGTH 3
#define PLANELENGTH 0x10000
#define BASICSEQUENCEROFFSET STATELENGTH
#define BASICCRTCONTOFFSET BASICSEQUENCEROFFSET + NUM_SEQ_REGS
#define BASICGRAPHCONTOFFSET BASICCRTCONTOFFSET + NUM_CRTC_REGS
#define BASICATTRIBCONTOFFSET BASICGRAPHCONTOFFSET + NUM_GC_REGS
#define BASICDACOFFSET BASICATTRIBCONTOFFSET + NUM_AC_REGS
#define BASICLATCHESOFFSET BASICDACOFFSET + NUM_DAC_REGS * RGBLENGTH
#define PLANE1OFFSET BASICLATCHESOFFSET + LATCHLENGTH
#define PLANE2OFFSET PLANE1OFFSET + PLANELENGTH
#define PLANE3OFFSET PLANE2OFFSET + PLANELENGTH
#define PLANE4OFFSET PLANE3OFFSET + PLANELENGTH
#define VIDEO_PAGE_SIZE (80 * 25 * 2) // Cols * rows * (char + attrib)
#define BIT_PLANE_SIZE 65536
#define VGA_WIDTH 80
#define VGA_HEIGHT_0 22
#define VGA_HEIGHT_1 25
#define VGA_HEIGHT_2 28
#define VGA_HEIGHT_3 43
#define VGA_HEIGHT_4 50
#define MAX_TITLE_LEN 256
#define MAX_CONSOLE_HEIGHT 50
#define MAX_CONSOLE_WIDTH 80
#define MAX_CONSOLE_SIZE (MAX_CONSOLE_HEIGHT * MAX_CONSOLE_WIDTH)
#define DEF_FONT_WIDTH 8
#define DEF_FONT_HEIGHT 8
#define GET FALSE
#define SET TRUE
#define DISPLAY_TYPE 0x40
#define AC_MODE_CONTROL_REG 16
#ifndef PROD
/* Debug stuff. */
#define FullScreenTrace0(s) \
if (FullScreenDebug) always_trace0(s)
#define FullScreenTrace1(s ,p0) \
if (FullScreenDebug) always_trace1(s, p0)
#define FullScreenTrace2(s, p0, p1) \
if (FullScreenDebug) always_trace2(s, p0, p1)
#define FullScreenTrace3(s, p0, p1, p2) \
if (FullScreenDebug) always_trace3(s, p0, p1, p2)
#define FullScreenTrace4(s, p0, p1, p2, p3) \
if (FullScreenDebug) always_trace4(s, p0, p1, p2, p3)
#define FullScreenTrace5(s, p0, p1, p2, p3, p4) \
if (FullScreenDebug) always_trace5(s, p0, p1, p2, p3, p4)
#define FullScreenTrace6(s, p0, p1, p2, p3, p4, p5) \
if (FullScreenDebug) always_trace6(s, p0, p1, p2, p3, p4, p5)
#define FullScreenTrace7(s, p0, p1, p2, p3, p4, p5, p6) \
if (FullScreenDebug) always_trace7(s, p0, p1, p2, p3, p4, p5, p6)
#define FullScreenTrace8(s, p0, p1, p2, p3, p4, p5, p6, p7) \
if (FullScreenDebug) always_trace7(s, p0, p1, p2, p3, p4, p5, p6, p7)
#else /* !PROD */
#define FullScreenTrace0(s)
#define FullScreenTrace1(s ,p0)
#define FullScreenTrace2(s, p0, p1)
#define FullScreenTrace3(s, p0, p1, p2)
#define FullScreenTrace4(s, p0, p1, p2, p3)
#define FullScreenTrace5(s, p0, p1, p2, p3, p4)
#define FullScreenTrace6(s, p0, p1, p2, p3, p4, p5)
#define FullScreenTrace7(s, p0, p1, p2, p3, p4, p5, p6)
#define FullScreenTrace8(s, p0, p1, p2, p3, p4, p5, p6, p7)
#endif /* !PROD */
/*
* ==========================================================================
* Typedefs
* ==========================================================================
*/
/* Structure for saving video block name in. */
typedef struct
{
WCHAR *Name;
ULONG NameLen;
} WCHAR_STRING;
/* Valid hardware state table entry. */
typedef struct
{
USHORT LinesOnScreen;
COORD Resolution;
COORD FontSize;
} HARDWARE_STATE;
/*
* ==========================================================================
* Global Data
* ==========================================================================
*/
IMPORT HANDLE MainThread;
IMPORT DWORD stateLength;
#ifdef X86GFX
IMPORT HANDLE hStartHardwareEvent;
IMPORT HANDLE hEndHardwareEvent;
IMPORT PVIDEO_HARDWARE_STATE_HEADER videoState;
#endif
IMPORT PVOID textState; //Tim Nov 92.
IMPORT WCHAR_STRING videoSection;
IMPORT WCHAR_STRING textSection;
IMPORT BOOL NoTicks;
IMPORT HANDLE StartTToG;
IMPORT HANDLE EndTToG;
IMPORT BOOL BiosModeChange;
#ifndef PROD
IMPORT UTINY FullScreenDebug;
#endif /* PROD */
extern DWORD savedScreenState;
extern BOOL ConsoleInitialised;
extern BOOL ConsoleNoUpdates;
#ifdef X86GFX
extern DWORD mouse_buffer_width;
extern DWORD mouse_buffer_height;
#endif /* X86GFX */
extern BOOL blocked_in_gfx_mode;
/*
* ==========================================================================
* Imported Functions
* ==========================================================================
*/
IMPORT VOID nt_init_event_thread(VOID);
IMPORT VOID ConsoleInit(VOID);
IMPORT VOID GfxReset(VOID);
IMPORT VOID ResetConsoleState(VOID);
IMPORT VOID InitTToG(VOID);
IMPORT VOID TextToGraphics(VOID);
IMPORT VOID CheckForFullscreenSwitch(VOID);
IMPORT UTINY getNtScreenState(VOID);
IMPORT BOOL hostModeChange(VOID);
IMPORT VOID DoFullScreenResume(VOID);
IMPORT VOID GfxCloseDown(VOID);
IMPORT VOID FreezeWinTitle(VOID);
IMPORT VOID UnFreezeWinTitle(VOID);
IMPORT VOID TextSectionName(WCHAR **, ULONG *);
IMPORT VOID VideoSectionName(WCHAR **, ULONG *);
IMPORT PVOID *CreateVideoSection(ULONG);
IMPORT PVOID *CreateTextSection(ULONG);
IMPORT VOID CommitSection(PVOID *, ULONG *);
IMPORT VOID CloseSection(PVOID);
IMPORT VOID LoseRegenMemory(VOID);
IMPORT VOID RegainRegenMemory(VOID);
IMPORT VOID DoHandShake(VOID);
IMPORT HANDLE GetDetectEvent(VOID);
IMPORT VOID ResetConsoleState IPT0();
IMPORT int getModeType(VOID);
#ifdef X86GFX
#define CPI_FILENAME_LENGTH 9
#define CPI_FILENAME "\\ega.cpi"
#define CPI_SIGNATURE_LENGTH 8
#define CPI_SIGNATURE_NT "\xFF""FONT.NT"
#define CPI_SIGNATURE_DOS "\xFF""FONT "
#pragma pack(1)
typedef struct _CPIFILEHEADER {
CHAR Signature[8]; // "\xFF""FONT.NT" for nt ega.cpi
// "\xFF""FONT " for dos ega.cpi
BYTE Reserved[8];
WORD NumberOfPointers;
BYTE TypeOfPointer;
DWORD OffsetToCodePageHeader;
} CPIFILEHEADER, * PCPIFILEHEADER;
typedef struct _CPICODEPAGEHEADER{
WORD NumberOfCodePages;
} CPICODEPAGEHEADER, *PCPICODEPAGEHEADER;
typedef struct _CPICODEPAGEENTRY {
WORD HeaderSize;
DWORD OffsetToNextCodePageEntry;
WORD DeviceType;
CHAR DevieSubTypeID[8];
WORD CodePageID;
BYTE Reserved[6];
DWORD OffsetToFontHeader; // absolute for DOS CPI
// relative for NT CPI
} CPICODEPAGEENTRY, *PCPICODEPAGEENTRY;
typedef struct _CPIFONTHEADER {
WORD Reserved;
WORD NumberOfFonts;
WORD LengthOfFontData;
} CPIFONTHEADER, *PCPIFONTHEADER;
typedef struct _CPIFONTDATA{
BYTE FontHeight;
BYTE FontWidth;
WORD AspectRatio;
WORD NumberOfCharacters;
} CPIFONTDATA, *PCPIFONTDATA;
#pragma pack()
IMPORT BOOL LoadCPIFont(UINT, WORD, WORD);
#endif
#ifdef X86GFX
VOID locateNativeBIOSfonts(VOID);
VOID GetROMsMapped(VOID);
VOID LoseRegenMemory(VOID);
VOID RegainRegenMemory(VOID);
#endif
