diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/common/gawin32.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/common/gawin32.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/common/gawin32.c b/board/MAI/bios_emulator/scitech/src/common/gawin32.c deleted file mode 100644 index 69443344f4..0000000000 --- a/board/MAI/bios_emulator/scitech/src/common/gawin32.c +++ /dev/null @@ -1,255 +0,0 @@ -/**************************************************************************** -* -* 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 ------------------------------*/ - -#define DLL_NAME "nga_w32.dll" - -extern HANDLE _PM_hDevice; -static HMODULE hModDLL = NULL; -static ibool useRing0Driver = false; -static ibool haveRDTSC; -static GA_largeInteger countFreq; - -/*-------------------------- Implementation -------------------------------*/ - -/**************************************************************************** -REMARKS: -Loads the shared "nga_w32.dll" library from disk and connects to it. This -library is *always* located in the same directory as the Nucleus -graphics.bpd file. -****************************************************************************/ -static ibool LoadSharedDLL(void) -{ - char filename[PM_MAX_PATH]; - char bpdpath[PM_MAX_PATH]; - - /* Check if we have already loaded the DLL */ - if (hModDLL) - return true; - PM_init(); - - /* Open the DLL file */ - if (!PM_findBPD(DLL_NAME,bpdpath)) - return false; - strcpy(filename,bpdpath); - strcat(filename,DLL_NAME); - if ((hModDLL = LoadLibrary(filename)) == NULL) - return false; - return true; -} - -/**************************************************************************** -PARAMETERS: -path - Local path to the Nucleus driver files. - -REMARKS: -This function is used by the application program to override the location -of the Nucleus driver files that are loaded. Normally the loader code -will look in the system Nucleus directories first, then in the 'drivers' -directory relative to the current working directory, and finally relative -to the MGL_ROOT environment variable. - -Note that for Win32 we also call into the loaded PMHELP device driver -as necessary to change the local Nucleus path for system wide Nucleus -drivers. -****************************************************************************/ -void NAPI GA_setLocalPath( - const char *path) -{ - DWORD inBuf[1]; - DWORD outBuf[1],outCnt; - - PM_setLocalBPDPath(path); - if (_PM_hDevice != INVALID_HANDLE_VALUE) { - inBuf[0] = (DWORD)path; - DeviceIoControl(_PM_hDevice, PMHELP_GASETLOCALPATH32, - inBuf, sizeof(inBuf), outBuf, sizeof(outBuf), &outCnt, NULL); - } -} - -/**************************************************************************** -RETURNS: -Pointer to the system wide PM library imports, or the internal version if none - -REMARKS: -In order to support deploying new Nucleus drivers that may require updated -PM library functions, we check here to see if there is a system wide version -of the PM functions available. If so we return those functions for use with -the system wide Nucleus drivers, otherwise the compiled in version of the PM -library is used with the application local version of Nucleus. -****************************************************************************/ -PM_imports * NAPI GA_getSystemPMImports(void) -{ - PM_imports * pmImp; - PM_imports * (NAPIP _GA_getSystemPMImports)(void); - - if (LoadSharedDLL()) { - /* Note that Visual C++ build DLL's with only a single underscore in front - * of the exported name while Watcom C provides two of them. We check for - * both to allow working with either compiled DLL. - */ - if ((_GA_getSystemPMImports = (void*)GetProcAddress(hModDLL,"_GA_getSystemPMImports")) != NULL) { - if ((_GA_getSystemPMImports = (void*)GetProcAddress(hModDLL,"__GA_getSystemPMImports")) != NULL) { - pmImp = _GA_getSystemPMImports(); - memcpy(&_PM_imports,pmImp,MIN(_PM_imports.dwSize,pmImp->dwSize)); - return pmImp; - } - } - } - return &_PM_imports; -} - -/**************************************************************************** -PARAMETERS: -gaExp - Place to store the exported functions -shared - True if connecting to the shared, global Nucleus driver - -REMARKS: -For Win32 if we are connecting to the shared, global Nucleus driver (loaded -at ring 0) then we need to load a special nga_w32.dll library which contains -thunks to call down into the Ring 0 device driver as necessary. If we are -connecting to the application local Nucleus drivers (ie: Nucleus on DirectDraw -emulation layer) then we do nothing here. -****************************************************************************/ -ibool NAPI GA_getSharedExports( - GA_exports *gaExp, - ibool shared) -{ - GA_exports * exp; - GA_exports * (NAPIP _GA_getSystemGAExports)(void); - - useRing0Driver = false; - if (shared) { - if (!LoadSharedDLL()) - PM_fatalError("Unable to load " DLL_NAME "!"); - if ((_GA_getSystemGAExports = (void*)GetProcAddress(hModDLL,"_GA_getSystemGAExports")) == NULL) - if ((_GA_getSystemGAExports = (void*)GetProcAddress(hModDLL,"__GA_getSystemGAExports")) == NULL) - PM_fatalError("Unable to load " DLL_NAME "!"); - exp = _GA_getSystemGAExports(); - memcpy(gaExp,exp,MIN(gaExp->dwSize,exp->dwSize)); - useRing0Driver = true; - return true; - } - return false; -} - -#ifndef TEST_HARNESS -/**************************************************************************** -REMARKS: -Nothing special for this OS -****************************************************************************/ -ibool NAPI GA_queryFunctions( - GA_devCtx *dc, - N_uint32 id, - void _FAR_ *funcs) -{ - static ibool (NAPIP _GA_queryFunctions)(GA_devCtx *dc,N_uint32 id,void _FAR_ *funcs) = NULL; - - if (useRing0Driver) { - /* Call the version in nga_w32.dll if it is loaded */ - if (!_GA_queryFunctions) { - if ((_GA_queryFunctions = (void*)GetProcAddress(hModDLL,"_GA_queryFunctions")) == NULL) - if ((_GA_queryFunctions = (void*)GetProcAddress(hModDLL,"__GA_queryFunctions")) == NULL) - PM_fatalError("Unable to get exports from " DLL_NAME "!"); - } - return _GA_queryFunctions(dc,id,funcs); - } - return __GA_exports.GA_queryFunctions(dc,id,funcs); -} - -/**************************************************************************** -REMARKS: -Nothing special for this OS -****************************************************************************/ -ibool NAPI REF2D_queryFunctions( - REF2D_driver *ref2d, - N_uint32 id, - void _FAR_ *funcs) -{ - static ibool (NAPIP _REF2D_queryFunctions)(REF2D_driver *ref2d,N_uint32 id,void _FAR_ *funcs) = NULL; - - if (useRing0Driver) { - /* Call the version in nga_w32.dll if it is loaded */ - if (!_REF2D_queryFunctions) { - if ((_REF2D_queryFunctions = (void*)GetProcAddress(hModDLL,"_REF2D_queryFunctions")) == NULL) - if ((_REF2D_queryFunctions = (void*)GetProcAddress(hModDLL,"__REF2D_queryFunctions")) == NULL) - PM_fatalError("Unable to get exports from " DLL_NAME "!"); - } - return _REF2D_queryFunctions(ref2d,id,funcs); - } - return __GA_exports.REF2D_queryFunctions(ref2d,id,funcs); -} -#endif - -/**************************************************************************** -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); -} |