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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/common/aawin32.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/common/aawin32.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/common/aawin32.c b/board/MAI/bios_emulator/scitech/src/common/aawin32.c new file mode 100644 index 00000000000..f63f004f99d --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/common/aawin32.c @@ -0,0 +1,264 @@ +/**************************************************************************** +* +* 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: Win32 +* +* Description: OS specific Nucleus Graphics Architecture services for +* the Win32 operating system environments. +* +****************************************************************************/ + +#include "pm_help.h" +#include "pmapi.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#define STRICT +#define WIN32_LEAN_AND_MEAN +#include <windows.h> + +/*------------------------- Global Variables ------------------------------*/ + +#if GA_MAX_DEVICES > 4 +#error GA_MAX_DEVICES has changed! +#endif + +static ibool haveRDTSC; +static GA_largeInteger countFreq; +static GA_loadDriver_t ORG_GA_loadDriver; +extern HANDLE _PM_hDevice; + +/*-------------------------- Implementation -------------------------------*/ + +/**************************************************************************** +DESCRIPTION: +Get the current graphics driver imports from the VxD + +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) +{ + DWORD inBuf[1]; /* Buffer to send data to VxD */ + DWORD outBuf[2]; /* Buffer to receive data from VxD */ + DWORD count; /* Count of bytes returned from VxD */ + + PM_init(); + inBuf[0] = device; + if (DeviceIoControl(_PM_hDevice, PMHELP_GETSHAREDINFO32, inBuf, sizeof(inBuf), + outBuf, sizeof(outBuf), &count, NULL)) { + return (GA_sharedInfo*)outBuf[0]; + } + return NULL; +} + +/**************************************************************************** +REMARKS: +Nothing special for this OS. +****************************************************************************/ +ibool NAPI GA_getSharedExports( + GA_exports *gaExp) +{ + (void)gaExp; + return false; +} + +/**************************************************************************** +REMARKS: +This function initialises the software stereo module by either calling +the Nucleus libraries directly, or calling into the VxD if we are running +on the shared Nucleus libraries loaded by the Windows VxD. +****************************************************************************/ +static ibool NAPI _GA_softStereoInit( + GA_devCtx *dc) +{ + if (_PM_hDevice) { + DWORD inBuf[1]; /* Buffer to send data to VxD */ + DWORD outBuf[1]; /* Buffer to receive data from VxD */ + DWORD count; /* Count of bytes returned from VxD */ + + inBuf[0] = (ulong)dc; + if (DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOINIT32, inBuf, sizeof(inBuf), + outBuf, sizeof(outBuf), &count, NULL)) { + return outBuf[0]; + } + } + return false; +} + +/**************************************************************************** +REMARKS: +This function turns on software stereo mode, either directly or via the VxD. +****************************************************************************/ +static void NAPI _GA_softStereoOn(void) +{ + if (_PM_hDevice) { + DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOON32, NULL, 0, + NULL, 0, NULL, NULL); + } +} + +/**************************************************************************** +REMARKS: +This function schedules a software stereo mode page flip, either directly +or via the VxD. +****************************************************************************/ +static void NAPI _GA_softStereoScheduleFlip( + N_uint32 leftAddr, + N_uint32 rightAddr) +{ + if (_PM_hDevice) { + DWORD inBuf[2]; /* Buffer to send data to VxD */ + DWORD count; /* Count of bytes returned from VxD */ + + inBuf[0] = (ulong)leftAddr; + inBuf[1] = (ulong)rightAddr; + DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOFLIP32, inBuf, sizeof(inBuf), + NULL, 0, &count, NULL); + } +} + +/**************************************************************************** +REMARKS: +This function turns off software stereo mode, either directly or via the VxD. +****************************************************************************/ +static N_int32 NAPI _GA_softStereoGetFlipStatus(void) +{ + if (_PM_hDevice) { + DWORD outBuf[1]; /* Buffer to receive data from VxD */ + DWORD count; /* Count of bytes returned from VxD */ + + if (DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOFLIPSTATUS32, NULL, 0, + outBuf, sizeof(outBuf), &count, NULL)) { + return outBuf[0]; + } + } + return 0; +} + +/**************************************************************************** +REMARKS: +This function turns off software stereo mode, either directly or via the VxD. +****************************************************************************/ +static void NAPI _GA_softStereoWaitTillFlipped(void) +{ + while (!_GA_softStereoGetFlipStatus()) + ; +} + +/**************************************************************************** +REMARKS: +This function turns off software stereo mode, either directly or via the VxD. +****************************************************************************/ +static void NAPI _GA_softStereoOff(void) +{ + if (_PM_hDevice) { + DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOOFF32, NULL, 0, + NULL, 0, NULL, NULL); + } +} + +/**************************************************************************** +REMARKS: +This function disable the software stereo handler, either directly or via +the VxD. +****************************************************************************/ +static void NAPI _GA_softStereoExit(void) +{ + if (_PM_hDevice) { + DeviceIoControl(_PM_hDevice, PMHELP_GASTEREOEXIT32, NULL, 0, + NULL, 0, NULL, NULL); + } +} + +/**************************************************************************** +REMARKS: +We hook this function in here so that we can avoid the memory detect and +other destructive sequences in the drivers if we are loading the driver +from a Win32 application (our display drivers in contrast load them inside +the VxD directly, but the control panel applets use this function). +****************************************************************************/ +static GA_devCtx * NAPI _GA_loadDriver( + N_int32 deviceIndex, + N_int32 shared) +{ + GA_devCtx *dc; + DWORD inBuf[1]; + DWORD outBuf[1]; + N_int32 totalMemory = 0,oldIOPL; + + if (deviceIndex >= GA_MAX_DEVICES) + PM_fatalError("DeviceIndex too large in GA_loadDriver!"); + PM_init(); + inBuf[0] = deviceIndex; + if (DeviceIoControl(_PM_hDevice, PMHELP_GETMEMSIZE32, + inBuf, sizeof(inBuf), outBuf, sizeof(outBuf), NULL, NULL)) + totalMemory = outBuf[0]; + if (totalMemory == 0) + totalMemory = 8192; + _GA_exports.GA_forceMemSize(totalMemory,shared); + oldIOPL = PM_setIOPL(3); + dc = ORG_GA_loadDriver(deviceIndex,shared); + PM_setIOPL(oldIOPL); + return dc; +} + +/**************************************************************************** +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; + } + else if (QueryPerformanceFrequency((LARGE_INTEGER*)&countFreq)) { + haveRDTSC = false; + return true; + } + return false; +} + +/**************************************************************************** +REMARKS: +This function reads the high resolution timer. +****************************************************************************/ +void NAPI GA_TimerRead( + GA_largeInteger *value) +{ + if (haveRDTSC) + _GA_readTimeStamp(value); + else + QueryPerformanceCounter((LARGE_INTEGER*)value); +} |