diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/common/galib.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/common/galib.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/common/galib.c b/board/MAI/bios_emulator/scitech/src/common/galib.c new file mode 100644 index 000000000..7c1fbe312 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/common/galib.c @@ -0,0 +1,269 @@ +/**************************************************************************** +* +* 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: Any 32-bit protected mode environment +* +* Description: C module for the Graphics Accelerator Driver API. Uses +* the SciTech PM library for interfacing with DOS +* extender specific functions. +* +****************************************************************************/ + +#include "nucleus/graphics.h" +#if defined(__WIN32_VXD__) || defined(__NT_DRIVER__) +#include "sdd/sddhelp.h" +#else +#include <stdio.h> +#include <stdlib.h> +#endif + +/*---------------------------- Global Variables ---------------------------*/ + +#ifndef TEST_HARNESS +GA_exports _VARAPI __GA_exports; +static int loaded = false; +static PE_MODULE *hModBPD = NULL; + +static N_imports _N_imports = { + sizeof(N_imports), + _OS_delay, + }; + +static GA_imports _GA_imports = { + sizeof(GA_imports), + GA_getSharedInfo, + GA_TimerInit, + GA_TimerRead, + GA_TimerDifference, + }; +#endif + +/*----------------------------- Implementation ----------------------------*/ + +#define DLL_NAME "graphics.bpd" + +/**************************************************************************** +REMARKS: +This function is no longer used but we must implement it and return NULL +for compatibility with older binary drivers. +****************************************************************************/ +GA_sharedInfo * NAPI GA_getSharedInfo( + int device) +{ + return NULL; +} + +#ifndef TEST_HARNESS +/**************************************************************************** +REMARKS: +Fatal error handler for non-exported GA_exports. +****************************************************************************/ +static void _GA_fatalErrorHandler(void) +{ + PM_fatalError("Unsupported Nucleus export function called! Please upgrade your copy of Nucleus!\n"); +} + +/**************************************************************************** +PARAMETERS: +shared - True to load the driver into shared memory. + +REMARKS: +Loads the Nucleus binary portable DLL into memory and initilises it. +****************************************************************************/ +static ibool LoadDriver( + ibool shared) +{ + GA_initLibrary_t GA_initLibrary; + GA_exports *gaExp; + char filename[PM_MAX_PATH]; + char bpdpath[PM_MAX_PATH]; + int i,max; + ulong *p; + + /* Check if we have already loaded the driver */ + if (loaded) + return true; + PM_init(); + + /* First try to see if we can find the system wide shared exports + * if they are available. Under OS/2 this connects to our global + * shared Nucleus loader in SDDPMI.DLL. + */ + __GA_exports.dwSize = sizeof(__GA_exports); + if (GA_getSharedExports(&__GA_exports,shared)) + return loaded = true; + + /* Open the BPD file */ + if (!PM_findBPD(DLL_NAME,bpdpath)) + return false; + strcpy(filename,bpdpath); + strcat(filename,DLL_NAME); + if ((hModBPD = PE_loadLibrary(filename,shared)) == NULL) + return false; + if ((GA_initLibrary = (GA_initLibrary_t)PE_getProcAddress(hModBPD,"_GA_initLibrary")) == NULL) + return false; + bpdpath[strlen(bpdpath)-1] = 0; + if (strcmp(bpdpath,PM_getNucleusPath()) == 0) + strcpy(bpdpath,PM_getNucleusConfigPath()); + else { + PM_backslash(bpdpath); + strcat(bpdpath,"config"); + } + if ((gaExp = GA_initLibrary(shared,bpdpath,filename,GA_getSystemPMImports(),&_N_imports,&_GA_imports)) == NULL) + PM_fatalError("GA_initLibrary failed!\n"); + + /* Initialize all default imports to point to fatal error handler + * for upwards compatibility, and copy the exported functions. + */ + max = sizeof(__GA_exports)/sizeof(GA_initLibrary_t); + for (i = 0,p = (ulong*)&__GA_exports; i < max; i++) + *p++ = (ulong)_GA_fatalErrorHandler; + memcpy(&__GA_exports,gaExp,MIN(sizeof(__GA_exports),gaExp->dwSize)); + loaded = true; + return true; +} + +/* The following are stub entry points that the application calls to + * initialise the Nucleus loader library, and we use this to load our + * driver DLL from disk and initialise the library using it. + */ + +/* {secret} */ +int NAPI GA_status(void) +{ + if (!loaded) + return nDriverNotFound; + return __GA_exports.GA_status(); +} + +/* {secret} */ +const char * NAPI GA_errorMsg( + N_int32 status) +{ + if (!loaded) + return "Unable to load Nucleus device driver!"; + return __GA_exports.GA_errorMsg(status); +} + +/* {secret} */ +int NAPI GA_getDaysLeft(N_int32 shared) +{ + if (!LoadDriver(shared)) + return -1; + return __GA_exports.GA_getDaysLeft(shared); +} + +/* {secret} */ +int NAPI GA_registerLicense(uchar *license,N_int32 shared) +{ + if (!LoadDriver(shared)) + return 0; + return __GA_exports.GA_registerLicense(license,shared); +} + +/* {secret} */ +ibool NAPI GA_loadInGUI(N_int32 shared) +{ + if (!LoadDriver(shared)) + return false; + return __GA_exports.GA_loadInGUI(shared); +} + +/* {secret} */ +int NAPI GA_enumerateDevices(N_int32 shared) +{ + if (!LoadDriver(shared)) + return 0; + return __GA_exports.GA_enumerateDevices(shared); +} + +/* {secret} */ +GA_devCtx * NAPI GA_loadDriver(N_int32 deviceIndex,N_int32 shared) +{ + if (!LoadDriver(shared)) + return NULL; + return __GA_exports.GA_loadDriver(deviceIndex,shared); +} + +/* {secret} */ +void NAPI GA_getGlobalOptions( + GA_globalOptions *options, + ibool shared) +{ + if (LoadDriver(shared)) + __GA_exports.GA_getGlobalOptions(options,shared); +} + +/* {secret} */ +PE_MODULE * NAPI GA_loadLibrary( + const char *szBPDName, + ulong *size, + ibool shared) +{ + if (!LoadDriver(shared)) + return NULL; + return __GA_exports.GA_loadLibrary(szBPDName,size,shared); +} + +/* {secret} */ +GA_devCtx * NAPI GA_getCurrentDriver( + N_int32 deviceIndex) +{ + /* Bail for older drivers that didn't export this function! */ + if (!__GA_exports.GA_getCurrentDriver) + return NULL; + return __GA_exports.GA_getCurrentDriver(deviceIndex); +} + +/* {secret} */ +REF2D_driver * NAPI GA_getCurrentRef2d( + N_int32 deviceIndex) +{ + /* Bail for older drivers that didn't export this function! */ + if (!__GA_exports.GA_getCurrentRef2d) + return NULL; + return __GA_exports.GA_getCurrentRef2d(deviceIndex); +} + +/* {secret} */ +int NAPI GA_isOEMVersion(ibool shared) +{ + if (!LoadDriver(shared)) + return 0; + return __GA_exports.GA_isOEMVersion(shared); +} + +/* {secret} */ +N_uint32 * NAPI GA_getLicensedDevices(ibool shared) +{ + if (!LoadDriver(shared)) + return 0; + return __GA_exports.GA_getLicensedDevices(shared); +} +#endif + |