reactos/win32ss/drivers/displays/framebufacc/enable.c

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/*
* ReactOS Generic Framebuffer display driver
*
* Copyright (C) 2004 Filip Navara
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "framebufacc.h"
static DRVFN DrvFunctionTable[] =
{
{INDEX_DrvEnablePDEV, (PFN)DrvEnablePDEV},
{INDEX_DrvCompletePDEV, (PFN)DrvCompletePDEV},
{INDEX_DrvDisablePDEV, (PFN)DrvDisablePDEV},
{INDEX_DrvEnableSurface, (PFN)DrvEnableSurface},
{INDEX_DrvDisableSurface, (PFN)DrvDisableSurface},
{INDEX_DrvAssertMode, (PFN)DrvAssertMode},
{INDEX_DrvGetModes, (PFN)DrvGetModes},
{INDEX_DrvSetPalette, (PFN)DrvSetPalette},
{INDEX_DrvSetPointerShape, (PFN)DrvSetPointerShape},
{INDEX_DrvMovePointer, (PFN)DrvMovePointer}
};
/*
* DrvEnableDriver
*
* Initial driver entry point exported by the driver DLL. It fills in a
* DRVENABLEDATA structure with the driver's DDI version number and the
* calling addresses of all DDI functions supported by the driver.
*
* Status
* @implemented
*/
BOOL APIENTRY
DrvEnableDriver(
ULONG iEngineVersion,
ULONG cj,
PDRVENABLEDATA pded)
{
if (cj >= sizeof(DRVENABLEDATA))
{
pded->c = sizeof(DrvFunctionTable) / sizeof(DRVFN);
pded->pdrvfn = DrvFunctionTable;
pded->iDriverVersion = DDI_DRIVER_VERSION_NT5;
return TRUE;
}
else
{
return FALSE;
}
}
/*
* DrvEnablePDEV
*
* Returns a description of the physical device's characteristics to GDI.
*
* Status
* @implemented
*/
DHPDEV APIENTRY
DrvEnablePDEV(
IN DEVMODEW *pdm,
IN LPWSTR pwszLogAddress,
IN ULONG cPat,
OUT HSURF *phsurfPatterns,
IN ULONG cjCaps,
OUT ULONG *pdevcaps,
IN ULONG cjDevInfo,
OUT DEVINFO *pdi,
IN HDEV hdev,
IN LPWSTR pwszDeviceName,
IN HANDLE hDriver)
{
PPDEV ppdev;
GDIINFO GdiInfo;
DEVINFO DevInfo;
ULONG returnedDataLength = 0;
ppdev = EngAllocMem(FL_ZERO_MEMORY, sizeof(PDEV), ALLOC_TAG);
if (ppdev == NULL)
{
return NULL;
}
ppdev->hDriver = hDriver;
if (!IntInitScreenInfo(ppdev, pdm, &GdiInfo, &DevInfo))
{
EngFreeMem(ppdev);
return NULL;
}
/* hw mouse pointer */
ppdev->pPointerAttributes = NULL;
ppdev->PointerAttributesSize = 0;
/* Test see if the driver support hw mouse or not */
if (!EngDeviceIoControl(ppdev->hDriver,
IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES,
NULL,
sizeof(PVIDEO_MODE),
&ppdev->PointerCapabilities,
sizeof(VIDEO_POINTER_CAPABILITIES),
&returnedDataLength))
{
/* Test see if we got a hw mouse or not */
if ( (ppdev->PointerCapabilities.Flags & VIDEO_MODE_MONO_POINTER) ||
(ppdev->PointerCapabilities.Flags & VIDEO_MODE_COLOR_POINTER) )
{
/* determent the hw mouse mode */
if (!(ppdev->PointerCapabilities.Flags & VIDEO_MODE_ASYNC_POINTER))
{
DevInfo.flGraphicsCaps &= ~GCAPS_ASYNCMOVE;
}
else
{
DevInfo.flGraphicsCaps |= GCAPS_ASYNCMOVE;
}
}
}
/* setup paletted */
if (!IntInitDefaultPalette(ppdev, &DevInfo))
{
EngFreeMem(ppdev);
return NULL;
}
memcpy(pdi, &DevInfo, min(sizeof(DEVINFO), cjDevInfo));
memcpy(pdevcaps, &GdiInfo, min(sizeof(GDIINFO), cjCaps));
return (DHPDEV)ppdev;
}
/*
* DrvCompletePDEV
*
* Stores the GDI handle (hdev) of the physical device in dhpdev. The driver
* should retain this handle for use when calling GDI services.
*
* Status
* @implemented
*/
VOID APIENTRY
DrvCompletePDEV(
IN DHPDEV dhpdev,
IN HDEV hdev)
{
((PPDEV)dhpdev)->hDevEng = hdev;
}
/*
* DrvDisablePDEV
*
* Release the resources allocated in DrvEnablePDEV. If a surface has been
* enabled DrvDisableSurface will have already been called.
*
* Status
* @implemented
*/
VOID APIENTRY
DrvDisablePDEV(
IN DHPDEV dhpdev)
{
if (((PPDEV)dhpdev)->DefaultPalette)
{
EngDeletePalette(((PPDEV)dhpdev)->DefaultPalette);
}
if (((PPDEV)dhpdev)->PaletteEntries != NULL)
{
EngFreeMem(((PPDEV)dhpdev)->PaletteEntries);
}
EngFreeMem(dhpdev);
}