79 lines
3.6 KiB
C
79 lines
3.6 KiB
C
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/******************************Module*Header*******************************\
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*
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* *******************
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* * GDI SAMPLE CODE *
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* *******************
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*
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* Module Name: driver.h
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*
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* contains prototypes for the frame buffer driver.
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*
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* Copyright (c) 1992-1998 Microsoft Corporation
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\**************************************************************************/
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#include "stddef.h"
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#include <stdarg.h>
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#include "windef.h"
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#include "wingdi.h"
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#include "winddi.h"
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#include "devioctl.h"
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#include "ntddvdeo.h"
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#include "debug.h"
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typedef struct _PDEV
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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 hsurfEng; // Engine's handle to surface
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HPALETTE hpalDefault; // Handle to the default palette for device.
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PBYTE pjScreen; // This is pointer to base screen address
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ULONG cxScreen; // Visible screen width
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ULONG cyScreen; // Visible screen height
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POINTL ptlOrg; // Where this display is anchored in
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// the virtual desktop.
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ULONG ulMode; // Mode the mini-port driver is in.
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LONG lDeltaScreen; // Distance from one scan to the next.
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ULONG cScreenSize; // size of video memory, including
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// offscreen memory.
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PVOID pOffscreenList; // linked list of DCI offscreen surfaces.
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FLONG flRed; // For bitfields device, Red Mask
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FLONG flGreen; // For bitfields device, Green Mask
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FLONG flBlue; // For bitfields device, Blue Mask
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ULONG cPaletteShift; // number of bits the 8-8-8 palette must
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// be shifted by to fit in the hardware
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// palette.
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ULONG ulBitCount; // # of bits per pel 8,16,24,32 are only supported.
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POINTL ptlHotSpot; // adjustment for pointer hot spot
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VIDEO_POINTER_CAPABILITIES PointerCapabilities; // HW pointer abilities
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PVIDEO_POINTER_ATTRIBUTES pPointerAttributes; // hardware pointer attributes
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DWORD cjPointerAttributes; // Size of buffer allocated
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BOOL fHwCursorActive; // Are we currently using the hw cursor
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PALETTEENTRY *pPal; // If this is pal managed, this is the pal
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BOOL bSupportDCI; // Does the miniport support DCI?
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FLONG flHooks;
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} PDEV, *PPDEV;
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DWORD getAvailableModes(HANDLE, PVIDEO_MODE_INFORMATION *, DWORD *);
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BOOL bInitPDEV(PPDEV, PDEVMODEW, GDIINFO *, DEVINFO *);
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BOOL bInitSURF(PPDEV, BOOL);
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BOOL bInitPaletteInfo(PPDEV, DEVINFO *);
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BOOL bInitPointer(PPDEV, DEVINFO *);
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BOOL bInit256ColorPalette(PPDEV);
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VOID vDisablePalette(PPDEV);
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VOID vDisableSURF(PPDEV);
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#define MAX_CLUT_SIZE (sizeof(VIDEO_CLUT) + (sizeof(ULONG) * 256))
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//
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// Determines the size of the DriverExtra information in the DEVMODE
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// structure passed to and from the display driver.
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//
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#define DRIVER_EXTRA_SIZE 0
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#define DLL_NAME L"framebuf" // Name of the DLL in UNICODE
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#define STANDARD_DEBUG_PREFIX "FRAMEBUF: " // All debug output is prefixed
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#define ALLOC_TAG 'bfDD' // Four byte tag (characters in
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// reverse order) used for memory
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// allocations
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