reactos/subsystems/win32/win32k/eng/float.c
Timo Kreuzer 6afbc8f483 Hopefully create a branch and not destroy the svn repository.
svn path=/branches/reactos-yarotows/; revision=45219
2010-01-23 23:25:04 +00:00

80 lines
2.1 KiB
C

/*
* ReactOS W32 Subsystem
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
*
* 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.
*/
/* $Id$
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Engine floating point functions
* FILE: subsys/win32k/eng/float.c
* PROGRAMER: Jason Filby
* REVISION HISTORY:
*/
/* INCLUDES *****************************************************************/
#include <w32k.h>
#define NDEBUG
#include <debug.h>
/* FUNCTIONS *****************************************************************/
BOOL
APIENTRY
EngRestoreFloatingPointState ( IN VOID *Buffer )
{
NTSTATUS Status;
Status = KeRestoreFloatingPointState((PKFLOATING_SAVE)Buffer);
if (!NT_SUCCESS(Status))
{
return FALSE;
}
return TRUE;
}
ULONG
APIENTRY
EngSaveFloatingPointState(OUT VOID *Buffer,
IN ULONG BufferSize)
{
KFLOATING_SAVE TempBuffer;
NTSTATUS Status;
if (Buffer == NULL || BufferSize == 0)
{
/* Check for floating point support. */
Status = KeSaveFloatingPointState(&TempBuffer);
if (Status != STATUS_SUCCESS)
{
return(0);
}
KeRestoreFloatingPointState(&TempBuffer);
return(sizeof(KFLOATING_SAVE));
}
if (BufferSize < sizeof(KFLOATING_SAVE))
{
return(0);
}
Status = KeSaveFloatingPointState((PKFLOATING_SAVE)Buffer);
if (!NT_SUCCESS(Status))
{
return FALSE;
}
return TRUE;
}