320 lines
7.6 KiB
C
320 lines
7.6 KiB
C
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//
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// OS Isolation (BOGUS!)
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//
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#ifndef _H_OSI
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#define _H_OSI
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//
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// Control for shared code
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//
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//
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// Maximum number of entries in a palette.
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//
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#define OSI_MAX_PALETTE 256
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// Structure: OSI_ESCAPE_HEADER
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//
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// Description: Structure common to all display driver requests. These
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// fields are checked before the Display Driver will attempt to process the
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// request.
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//
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typedef struct tagOSI_ESCAPE_HEADER
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{
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DWORD padding; // For faulty drivers
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DWORD identifier; // Unique identifier for all our requests.
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DWORD escapeFn; // Function to be processed. In the case
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// of ESC_QUERYSUPPORT, this is the ID
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// of the function to be queried.
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DWORD version; // Version #
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}
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OSI_ESCAPE_HEADER;
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typedef OSI_ESCAPE_HEADER FAR * LPOSI_ESCAPE_HEADER;
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//
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// Unique identifier for all our requests
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//
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#define OSI_ESCAPE_IDENTIFIER 0xDC123BED
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//
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// Unique escape code for all our DC-Share specific requests.
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//
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#define OSI_ESC_CODE 31170
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//
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// Internal Windows NT Escape Function WNDOBJ_SETUP. This is the Escape
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// code that must be called in order for the Display Driver to be allowed
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// to call EngCreateWindow. Unfortunately, it is defined in winddi.h,
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// which can't be included in User-mode compilations.
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//
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// I define it here: if it changes in winddi.h, this line will fail to
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// compile in a Display Driver compilation.
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//
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#define WNDOBJ_SETUP 4354 // for live video ExtEscape
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//
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// Allowed ranges of escape functions
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//
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#define OSI_ESC_FIRST 0
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#define OSI_ESC_LAST 0xFF
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#define OSI_OE_ESC_FIRST 0x100
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#define OSI_OE_ESC_LAST 0x1FF
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#define OSI_HET_ESC_FIRST 0x200
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#define OSI_HET_ESC_LAST 0x2FF
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#define OSI_SBC_ESC_FIRST 0x400
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#define OSI_SBC_ESC_LAST 0x4FF
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#define OSI_HET_WO_ESC_FIRST 0x500
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#define OSI_HET_WO_ESC_LAST 0x5FF
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#define OSI_SSI_ESC_FIRST 0x600
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#define OSI_SSI_ESC_LAST 0x6FF
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#define OSI_CM_ESC_FIRST 0x700
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#define OSI_CM_ESC_LAST 0x7FF
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#define OSI_OA_ESC_FIRST 0x800
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#define OSI_OA_ESC_LAST 0x8FF
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#define OSI_BA_ESC_FIRST 0x900
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#define OSI_BA_ESC_LAST 0x9FF
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//
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// Specific values for OSI escape codes
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//
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#define OSI_ESC(code) (OSI_ESC_FIRST + code)
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#define OSI_ESC_INIT OSI_ESC(0)
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#define OSI_ESC_TERM OSI_ESC(1)
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#define OSI_ESC_SYNC_NOW OSI_ESC(2)
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//
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// Used to determine if our driver is around, hosting is possible, and to
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// returned mapped shared memory if so after initializing.
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//
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#define SHM_SIZE_USED (sizeof(SHM_SHARED_MEMORY) + 2*sizeof(OA_SHARED_DATA))
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#define SHM_MEDIUM_TILE_INDEX 0
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#define SHM_LARGE_TILE_INDEX 1
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#define SHM_NUM_TILE_SIZES 2
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typedef struct tagOSI_INIT_REQUEST
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{
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OSI_ESCAPE_HEADER header;
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DWORD result;
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LPVOID pSharedMemory;
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LPVOID poaData[2];
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DWORD sbcEnabled;
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LPVOID psbcTileData[SHM_NUM_TILE_SIZES];
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DWORD aBitmasks[3];
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} OSI_INIT_REQUEST;
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typedef OSI_INIT_REQUEST FAR* LPOSI_INIT_REQUEST;
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//
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// Used when shutting down to cleanup any allocated objects and memory
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//
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typedef struct tagOSI_TERM_REQUEST
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{
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OSI_ESCAPE_HEADER header;
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} OSI_TERM_REQUEST;
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typedef OSI_TERM_REQUEST FAR* LPOSI_TERM_REQUEST;
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#ifdef DLL_DISP
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#ifndef IS_16
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//
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// We have a circular structure dependency, so prototype the necessary data
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// here.
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//
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typedef struct tagOSI_DSURF OSI_DSURF;
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//
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// Tag used to identify all memory allocated by the display driver.
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//
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#define OSI_ALLOC_TAG 'DDCD'
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// Structure: OSI_PDEV
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//
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// Description:
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//
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// Contents of our private data pointer; GDI always passes this to us on
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// each call to the display driver. This structure is initialized in
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// DrvEnablePDEV handling.
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//
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typedef struct tagOSI_PDEV
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{
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//
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// Rendering extensions colour information.
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//
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HANDLE hDriver; // Handle to \Device\Screen
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HDEV hdevEng; // Engine's handle to PDEV
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HSURF hsurfScreen; // Engine's handle to screen
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OSI_DSURF* pdsurfScreen; // Our private DSURF for the screen
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LONG cxScreen; // Visible screen width
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LONG cyScreen; // Visible screen height
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LONG cBitsPerPel; // Bits per pel (8,15,16,24,32,etc)
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// This is only 8 or 24 on NT 5.0!
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//
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// Color/pixel format
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//
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ULONG iBitmapFormat; // Current colour depth as defined
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FLONG flRed; // Red mask for bitmask modes
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FLONG flGreen; // Green mask for bitmask modes
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FLONG flBlue; // Blue mask for bitmask modes // by the BMF_xBPP flags.
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//
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// Palette stuff
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//
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HPALETTE hpalCreated; // For NT 5.0 we have to return a palette
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PALETTEENTRY* pPal; // The palette if palette managed
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BOOL paletteChanged; // Set whenever the palette is
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// changed.
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}
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OSI_PDEV;
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typedef OSI_PDEV FAR * LPOSI_PDEV;
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// Structure: OSI_DSURF
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//
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// Description:
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//
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// Surface specific information. We need this structure to pass on to
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// EngCreateSurface() during initializtion. We ignore it subsequently.
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//
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typedef struct tagOSI_DSURF
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{
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SIZEL sizl; // Size of the original bitmap
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LPOSI_PDEV ppdev; // Pointer to the assocaited PDEV
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}
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OSI_DSURF;
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typedef OSI_DSURF FAR * LPOSI_DSURF;
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void OSI_DDInit(LPOSI_PDEV, LPOSI_INIT_REQUEST);
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void OSI_DDTerm(LPOSI_PDEV);
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#else
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void OSI_DDTerm(void);
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#endif // !IS_16
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#else
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//
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// Used for other desktops thread.
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//
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enum
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{
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OSI_WM_SETGUIEFFECTS = WM_USER,
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OSI_WM_DESKTOPREPAINT,
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OSI_WM_DESKTOPSWITCH,
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OSI_WM_MOUSEINJECT,
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OSI_WM_KEYBDINJECT,
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OSI_WM_INJECTSAS
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};
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#endif // DLL_DISP
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//
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// OSI_Load()
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// Called when nmas.dll is first loaded.
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//
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void OSI_Load(void);
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//
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// OSI_Unload()
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// Called when nmas.dll is unloaded.
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//
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void OSI_Unload(void);
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//
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// OSI_Init()
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// Called when app sharing initializes in its service thread. We determine
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// if we can host, and get hold of buffers, data structures, etc. needed
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// for hosting if so.
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//
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// Returns FALSE on severe failure. The display driver on NT not being
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// present isn't failure. The graphic patches on Win95 not being safe isn't
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// failure either. In those two cases, AS will simply mark itself as
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// unable to host, but can view fine.
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//
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void OSI_Init(void);
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//
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// OSI_Term()
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// Called when app sharing deinitializes in its service thread.
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//
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void OSI_Term(void);
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//
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// OSI_FunctionRequest()
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// Used to communicate with the display driver piece, the part which tracks
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// graphical output in shared apps on the screen.
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//
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BOOL OSI_FunctionRequest(DWORD functionId, LPOSI_ESCAPE_HEADER pRequest, DWORD requestLen);
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// NT only!
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void OSI_InitDriver50(BOOL fInit);
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// NT only!
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void OSI_RepaintDesktop(void);
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// NT only!
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void OSI_SetGUIEffects(BOOL fOff);
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// NT only!
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void WINAPI OSI_SetDriverName(LPCSTR szDriverName);
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#ifdef DLL_DISP
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#ifdef IS_16
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BOOL OSI_DDProcessRequest(UINT fnEscape, LPOSI_ESCAPE_HEADER pResult,
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DWORD cbResult);
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#else
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ULONG OSI_DDProcessRequest(SURFOBJ* pso, UINT cjIn, void* pvIn, UINT cjOut, void* pvOut);
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BOOL OSIInitializeMode(const GDIINFO* pGdiRequested, const DEVMODEW* pdmRequested,
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LPOSI_PDEV ppdev, GDIINFO* pgdiReturn, DEVINFO* pdiReturn);
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#endif // !IS_16
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#endif // DLL_DISP
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#endif // _H_OSI
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