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//
// OS Isolation (BOGUS!)
//
#ifndef _H_OSI
#define _H_OSI
//
// Control for shared code
//
//
// Maximum number of entries in a palette.
//
#define OSI_MAX_PALETTE 256
// Structure: OSI_ESCAPE_HEADER
//
// Description: Structure common to all display driver requests. These
// fields are checked before the Display Driver will attempt to process the
// request.
//
typedef struct tagOSI_ESCAPE_HEADER{ DWORD padding; // For faulty drivers
DWORD identifier; // Unique identifier for all our requests.
DWORD escapeFn; // Function to be processed. In the case
// of ESC_QUERYSUPPORT, this is the ID
// of the function to be queried.
DWORD version; // Version #
}OSI_ESCAPE_HEADER;typedef OSI_ESCAPE_HEADER FAR * LPOSI_ESCAPE_HEADER;
//
// Unique identifier for all our requests
//
#define OSI_ESCAPE_IDENTIFIER 0xED3B12DC
//
// Unique escape code for all our specific requests.
//
#define OSI_ESC_CODE 31170
//
// Internal Windows NT Escape Function WNDOBJ_SETUP. This is the Escape
// code that must be called in order for the Display Driver to be allowed
// to call EngCreateWindow. Unfortunately, it is defined in winddi.h,
// which can't be included in User-mode compilations.
//
// I define it here: if it changes in winddi.h, this line will fail to
// compile in a Display Driver compilation.
//
#define WNDOBJ_SETUP 4354 // for live video ExtEscape
//
// Allowed ranges of escape functions
//
#define OSI_ESC_FIRST 0
#define OSI_ESC_LAST 0xFF
#define OSI_OE_ESC_FIRST 0x100
#define OSI_OE_ESC_LAST 0x1FF
#define OSI_HET_ESC_FIRST 0x200
#define OSI_HET_ESC_LAST 0x2FF
#define OSI_SBC_ESC_FIRST 0x400
#define OSI_SBC_ESC_LAST 0x4FF
#define OSI_HET_WO_ESC_FIRST 0x500
#define OSI_HET_WO_ESC_LAST 0x5FF
#define OSI_SSI_ESC_FIRST 0x600
#define OSI_SSI_ESC_LAST 0x6FF
#define OSI_CM_ESC_FIRST 0x700
#define OSI_CM_ESC_LAST 0x7FF
#define OSI_OA_ESC_FIRST 0x800
#define OSI_OA_ESC_LAST 0x8FF
#define OSI_BA_ESC_FIRST 0x900
#define OSI_BA_ESC_LAST 0x9FF
//
// Specific values for OSI escape codes
//
#define OSI_ESC(code) (OSI_ESC_FIRST + code)
#define OSI_ESC_INIT OSI_ESC(0)
#define OSI_ESC_TERM OSI_ESC(1)
#define OSI_ESC_SYNC_NOW OSI_ESC(2)
//
// Used to determine if our driver is around, hosting is possible, and to
// returned mapped shared memory if so after initializing.
//
#define SHM_SIZE_USED (sizeof(SHM_SHARED_MEMORY) + 2*sizeof(OA_SHARED_DATA))
#define SHM_MEDIUM_TILE_INDEX 0
#define SHM_LARGE_TILE_INDEX 1
#define SHM_NUM_TILE_SIZES 2
typedef struct tagOSI_INIT_REQUEST{ OSI_ESCAPE_HEADER header; DWORD result; LPVOID pSharedMemory; LPVOID poaData[2];
DWORD sbcEnabled; LPVOID psbcTileData[SHM_NUM_TILE_SIZES]; DWORD aBitmasks[3];} OSI_INIT_REQUEST;typedef OSI_INIT_REQUEST FAR* LPOSI_INIT_REQUEST;
//
// Used when shutting down to cleanup any allocated objects and memory
//
typedef struct tagOSI_TERM_REQUEST{ OSI_ESCAPE_HEADER header;} OSI_TERM_REQUEST;typedef OSI_TERM_REQUEST FAR* LPOSI_TERM_REQUEST;
#ifdef DLL_DISP
#ifndef IS_16
//
// We have a circular structure dependency, so prototype the necessary data
// here.
//
typedef struct tagOSI_DSURF OSI_DSURF;
//
// Tag used to identify all memory allocated by the display driver.
//
#define OSI_ALLOC_TAG 'DDCD'
// Structure: OSI_PDEV
//
// Description:
//
// Contents of our private data pointer; GDI always passes this to us on
// each call to the display driver. This structure is initialized in
// DrvEnablePDEV handling.
//
typedef struct tagOSI_PDEV{ //
// Rendering extensions colour information.
//
HANDLE hDriver; // Handle to \Device\Screen
HDEV hdevEng; // Engine's handle to PDEV
HSURF hsurfScreen; // Engine's handle to screen
OSI_DSURF* pdsurfScreen; // Our private DSURF for the screen
LONG cxScreen; // Visible screen width
LONG cyScreen; // Visible screen height
LONG cBitsPerPel; // Bits per pel (8,15,16,24,32,etc)
// This is only 8 or 24 on NT 5.0!
//
// Color/pixel format
//
ULONG iBitmapFormat; // Current colour depth as defined
FLONG flRed; // Red mask for bitmask modes
FLONG flGreen; // Green mask for bitmask modes
FLONG flBlue; // Blue mask for bitmask modes // by the BMF_xBPP flags.
//
// Palette stuff
//
HPALETTE hpalCreated; // For NT 5.0 we have to return a palette
PALETTEENTRY* pPal; // The palette if palette managed
BOOL paletteChanged; // Set whenever the palette is
// changed.
}OSI_PDEV;typedef OSI_PDEV FAR * LPOSI_PDEV;
// Structure: OSI_DSURF
//
// Description:
//
// Surface specific information. We need this structure to pass on to
// EngCreateSurface() during initializtion. We ignore it subsequently.
//
typedef struct tagOSI_DSURF{ SIZEL sizl; // Size of the original bitmap
LPOSI_PDEV ppdev; // Pointer to the assocaited PDEV
}OSI_DSURF;typedef OSI_DSURF FAR * LPOSI_DSURF;
void OSI_DDInit(LPOSI_PDEV, LPOSI_INIT_REQUEST);void OSI_DDTerm(LPOSI_PDEV);#else
void OSI_DDTerm(void);#endif // !IS_16
#else
//
// Used for other desktops thread.
//
enum{ OSI_WM_SETGUIEFFECTS = WM_USER, OSI_WM_DESKTOPREPAINT, OSI_WM_DESKTOPSWITCH, OSI_WM_MOUSEINJECT, OSI_WM_KEYBDINJECT, OSI_WM_INJECTSAS};
#endif // DLL_DISP
//
// OSI_Load()
// Called when nmas.dll is first loaded.
//
void OSI_Load(void);
//
// OSI_Unload()
// Called when nmas.dll is unloaded.
//
void OSI_Unload(void);
//
// OSI_Init()
// Called when app sharing initializes in its service thread. We determine
// if we can host, and get hold of buffers, data structures, etc. needed
// for hosting if so.
//
// Returns FALSE on severe failure. The display driver on NT not being
// present isn't failure. The graphic patches on Win95 not being safe isn't
// failure either. In those two cases, AS will simply mark itself as
// unable to host, but can view fine.
//
void OSI_Init(void);
//
// OSI_Term()
// Called when app sharing deinitializes in its service thread.
//
void OSI_Term(void);
//
// OSI_FunctionRequest()
// Used to communicate with the display driver piece, the part which tracks
// graphical output in shared apps on the screen.
//
BOOL OSI_FunctionRequest(DWORD functionId, LPOSI_ESCAPE_HEADER pRequest, DWORD requestLen);
// NT only!
void OSI_InitDriver50(BOOL fInit);
// NT only!
void OSI_RepaintDesktop(void);
// NT only!
void OSI_SetGUIEffects(BOOL fOff);
// NT only!
void WINAPI OSI_SetDriverName(LPCSTR szDriverName);
#ifdef DLL_DISP
#ifdef IS_16
BOOL OSI_DDProcessRequest(UINT fnEscape, LPOSI_ESCAPE_HEADER pResult, DWORD cbResult);#else
ULONG OSI_DDProcessRequest(SURFOBJ* pso, UINT cjIn, void* pvIn, UINT cjOut, void* pvOut);
BOOL OSIInitializeMode(const GDIINFO* pGdiRequested, const DEVMODEW* pdmRequested, LPOSI_PDEV ppdev, GDIINFO* pgdiReturn, DEVINFO* pdiReturn);
#endif // !IS_16
#endif // DLL_DISP
#endif // _H_OSI
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