mirror of
https://github.com/reactos/reactos.git
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79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* ReactOS W32 Subsystem
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* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* $Id$
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: Engine floating point functions
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* FILE: subsys/win32k/eng/float.c
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* PROGRAMER: Jason Filby
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* REVISION HISTORY:
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*/
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/* INCLUDES *****************************************************************/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS *****************************************************************/
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BOOL
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APIENTRY
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EngRestoreFloatingPointState ( IN VOID *Buffer )
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{
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NTSTATUS Status;
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Status = KeRestoreFloatingPointState((PKFLOATING_SAVE)Buffer);
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if (!NT_SUCCESS(Status))
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{
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return FALSE;
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}
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return TRUE;
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}
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ULONG
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APIENTRY
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EngSaveFloatingPointState(OUT VOID *Buffer,
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IN ULONG BufferSize)
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{
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KFLOATING_SAVE TempBuffer;
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NTSTATUS Status;
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if (Buffer == NULL || BufferSize == 0)
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{
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/* Check for floating point support. */
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Status = KeSaveFloatingPointState(&TempBuffer);
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if (Status != STATUS_SUCCESS)
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{
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return(0);
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}
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KeRestoreFloatingPointState(&TempBuffer);
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return(sizeof(KFLOATING_SAVE));
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}
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if (BufferSize < sizeof(KFLOATING_SAVE))
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{
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return(0);
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}
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Status = KeSaveFloatingPointState((PKFLOATING_SAVE)Buffer);
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if (!NT_SUCCESS(Status))
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{
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return FALSE;
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}
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return TRUE;
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}
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