62 lines
2.6 KiB
C
62 lines
2.6 KiB
C
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/******************************Module*Header*******************************\
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* Module Name: driver.h
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*
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* Contains prototypes for the display driver.
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*
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* Copyright (c) 1992-1995 Microsoft Corporation
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\**************************************************************************/
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typedef struct _PDEV PDEV; // Handy forward declaration
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//////////////////////////////////////////////////////////////////////
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// Miscellaneous shared stuff
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#define DLL_NAME L"vga" // Name of the DLL in UNICODE
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#define STANDARD_DEBUG_PREFIX "Vga risc: " // All debug output is prefixed
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// by this string
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#define ALLOC_TAG 'rgvD' // Dvgr
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// Four byte tag (characters in
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// reverse order) used for
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// memory allocations
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#define DRIVER_EXTRA_SIZE 0 // Size of the DriverExtra information in the
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// DEVMODE structure
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// Describes a single color tetrahedron vertex for dithering
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typedef struct _VERTEX_DATA {
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ULONG ulCount; // # of pixels in this vertex
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ULONG ulVertex; // vertex #
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} VERTEX_DATA;
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////////////////////////////////////////////////////////////////////////
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// The Physical Device data structure
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typedef struct _PDEV
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{
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ULONG iBitmapFormat; // BMF_4BPP (our current colour depth)
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BYTE* pjScreen; // Points to base screen address
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LONG lDelta; // Screen stride
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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 surface
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FLONG flHooks; // What we're hooking from GDI
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UCHAR* pjBase; // Mapped IO port base for this PDEV
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LONG cxScreen; // Visible screen width
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LONG cyScreen; // Visible screen height
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ULONG ulMode; // Mode the mini-port driver is in.
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HPALETTE hpalDefault; // GDI handle to the default palette.
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SURFOBJ* pso; // DIB copy of our surface to which we
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// have GDI draw everything
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} PDEV, *PPDEV;
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/////////////////////////////////////////////////////////////////////////
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// Miscellaneous prototypes:
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VOID vUpdate(PDEV*, RECTL*, CLIPOBJ*);
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BOOL bAssertModeHardware(PDEV*, BOOL);
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BOOL bEnableHardware(PDEV*);
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VOID vDisableHardware(PDEV*);
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