diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/common/aaos2.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/common/aaos2.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/common/aaos2.c b/board/MAI/bios_emulator/scitech/src/common/aaos2.c new file mode 100644 index 0000000000..486b96a9c0 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/common/aaos2.c @@ -0,0 +1,124 @@ +/**************************************************************************** +* +* SciTech Nucleus Graphics Architecture +* +* Copyright (C) 1991-1998 SciTech Software, Inc. +* All rights reserved. +* +* ====================================================================== +* |REMOVAL OR MODIFICATION OF THIS HEADER IS STRICTLY PROHIBITED BY LAW| +* | | +* |This copyrighted computer code contains proprietary technology | +* |owned by SciTech Software, Inc., located at 505 Wall Street, | +* |Chico, CA 95928 USA (http://www.scitechsoft.com). | +* | | +* |The contents of this file are subject to the SciTech Nucleus | +* |License; you may *not* use this file or related software except in | +* |compliance with the License. You may obtain a copy of the License | +* |at http://www.scitechsoft.com/nucleus-license.txt | +* | | +* |Software distributed under the License is distributed on an | +* |"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | +* |implied. See the License for the specific language governing | +* |rights and limitations under the License. | +* | | +* |REMOVAL OR MODIFICATION OF THIS HEADER IS STRICTLY PROHIBITED BY LAW| +* ====================================================================== +* +* Language: ANSI C +* Environment: OS/2 32-bit +* +* Description: OS specific Nucleus Graphics Architecture services for +* the OS/2 operating system environments. +* +****************************************************************************/ + +#include "pm_help.h" +#define INCL_DOSERRORS +#define INCL_DOS +#define INCL_SUB +#define INCL_VIO +#define INCL_KBD +#include <os2.h> + +/*---------------------------- Global Variables ---------------------------*/ + +static HFILE hSDDHelp; +static ulong outLen; /* Must not cross 64Kb boundary! */ +static ulong result; /* Must not cross 64Kb boundary! */ +static ibool haveRDTSC; + +/*-------------------------- Implementation -------------------------------*/ + +/**************************************************************************** +REMARKS: +This function returns a pointer to the common graphics driver loaded in the +helper VxD. The memory for the VxD is shared between all processes via +the VxD, so that the VxD, 16-bit code and 32-bit code all see the same +state when accessing the graphics binary portable driver. +****************************************************************************/ +GA_sharedInfo * NAPI GA_getSharedInfo( + int device) +{ + /* Initialise the PM library and connect to our runtime DLL's */ + PM_init(); + + /* Open our helper device driver */ + if (DosOpen(PMHELP_NAME,&hSDDHelp,&result,0,0, + FILE_OPEN, OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE, + NULL)) + PM_fatalError("Unable to open SDDHELP$ helper device driver!"); + outLen = sizeof(result); + DosDevIOCtl(hSDDHelp,PMHELP_IOCTL,PMHELP_GETSHAREDINFO, + NULL, 0, NULL, + &result, outLen, &outLen); + DosClose(hSDDHelp); + if (result) { + /* We have found the shared Nucleus packet. Because not all processes + * map to SDDPMI.DLL, we need to ensure that we connect to this + * DLL so that it gets mapped into our address space (that is + * where the shared Nucleus packet is located). Simply doing a + * DosLoadModule on it is enough for this. + */ + HMODULE hModSDDPMI; + char buf[80]; + DosLoadModule((PSZ)buf,sizeof(buf),(PSZ)"SDDPMI.DLL",&hModSDDPMI); + } + return (GA_sharedInfo*)result; +} + +/**************************************************************************** +REMARKS: +Nothing special for this OS. +****************************************************************************/ +ibool NAPI GA_getSharedExports( + GA_exports *gaExp) +{ + (void)gaExp; + return false; +} + +/**************************************************************************** +REMARKS: +This function initialises the high precision timing functions for the +Nucleus loader library. +****************************************************************************/ +ibool NAPI GA_TimerInit(void) +{ + if (_GA_haveCPUID() && (_GA_getCPUIDFeatures() & CPU_HaveRDTSC) != 0) + haveRDTSC = true; + return true; +} + +/**************************************************************************** +REMARKS: +This function reads the high resolution timer. +****************************************************************************/ +void NAPI GA_TimerRead( + GA_largeInteger *value) +{ + if (haveRDTSC) + _GA_readTimeStamp(value); + else + DosTmrQueryTime((QWORD*)value); +} |
