2 * ReactOS W32 Subsystem
3 * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * COPYRIGHT: See COPYING in the top level directory
22 * PROJECT: ReactOS kernel
23 * PURPOSE: Engine floating point functions
24 * FILE: subsys/win32k/eng/float.c
25 * PROGRAMER: Jason Filby
29 /* INCLUDES *****************************************************************/
36 /* FUNCTIONS *****************************************************************/
40 EngRestoreFloatingPointState ( IN VOID
*Buffer
)
43 Status
= KeRestoreFloatingPointState((PKFLOATING_SAVE
)Buffer
);
44 if (!NT_SUCCESS(Status
))
53 EngSaveFloatingPointState(OUT VOID
*Buffer
,
56 KFLOATING_SAVE TempBuffer
;
58 if (Buffer
== NULL
|| BufferSize
== 0)
60 /* Check for floating point support. */
61 Status
= KeSaveFloatingPointState(&TempBuffer
);
62 if (Status
!= STATUS_SUCCESS
)
66 KeRestoreFloatingPointState(&TempBuffer
);
67 return(sizeof(KFLOATING_SAVE
));
69 if (BufferSize
< sizeof(KFLOATING_SAVE
))
73 Status
= KeSaveFloatingPointState((PKFLOATING_SAVE
)Buffer
);
74 if (!NT_SUCCESS(Status
))