[21878] | 1 | /* $Id: initterm.cpp,v 1.18 2002-09-14 08:31:25 sandervl Exp $
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[9232] | 2 | *
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[21878] | 3 | * DSOUND DLL entry point
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[9232] | 4 | *
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| 5 | * Copyright 1998 Sander van Leeuwen
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| 6 | * Copyright 1998 Peter Fitzsimmons
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| 7 | *
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| 8 | * Project Odin Software License can be found in LICENSE.TXT
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| 9 | */
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| 10 |
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| 11 | #define INCL_DOSMODULEMGR
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| 12 | #define INCL_DOSPROCESS
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| 13 | #define INCL_DOSERRORS
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| 14 | #define INCL_OS2MM
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| 15 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 16 | #include <os2mewrap.h> //Odin32 OS/2 MMPM/2 api wrappers
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| 17 | #include <stdlib.h>
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| 18 | #include <stdio.h>
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| 19 | #include <string.h>
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| 20 | #include <odin.h>
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| 21 | #include <win32type.h>
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| 22 | #include <win32api.h>
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| 23 | #include <winconst.h>
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| 24 | #include <odinlx.h>
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| 25 | #include <misc.h> /*PLF Wed 98-03-18 23:18:15*/
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| 26 | #include <initdll.h>
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| 27 | #include <custombuild.h>
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| 28 | #include "initdsound.h"
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| 29 |
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[21878] | 30 | // Win32 resource table (produced by wrc)
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| 31 | extern DWORD dsound_PEResTab;
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[9232] | 32 |
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| 33 | static HMODULE dllHandle = 0;
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| 34 | static HMODULE MMPMLibraryHandle = 0;
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| 35 |
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[21878] | 36 | char dsoundPath[CCHMAXPATH] = "";
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| 37 |
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[9232] | 38 | BOOL fdsMMPMAvailable = TRUE;
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| 39 |
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| 40 | DWORD (APIENTRY *pfnDSmciSendCommand)(WORD wDeviceID,
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| 41 | WORD wMessage,
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| 42 | DWORD dwParam1,
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| 43 | PVOID dwParam2,
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| 44 | WORD wUserParm) = NULL;
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| 45 | DWORD (APIENTRY *pfnDSmciGetErrorString)(DWORD dwError,
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| 46 | LPSTR lpstrBuffer,
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| 47 | WORD wLength) = NULL;
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| 48 |
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| 49 | BOOL WINAPI LibMainDSound(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
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| 50 | {
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[21878] | 51 | char szError[CCHMAXPATH];
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| 52 | HKEY hKey;
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[9232] | 53 |
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[21878] | 54 | switch (fdwReason)
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| 55 | {
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| 56 | case DLL_PROCESS_ATTACH:
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[9232] | 57 |
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[21878] | 58 | if(fdsMMPMAvailable == TRUE)
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| 59 | {
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| 60 | // if audio access wasn't disabled already, check if mmpm2 is installed
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[9232] | 61 | // try to load the MDM library, not MMPM directly!!!
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| 62 | if (DosLoadModule(szError, sizeof(szError),
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[21578] | 63 | "MDM", &MMPMLibraryHandle) != NO_ERROR)
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[9232] | 64 | {
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| 65 | // this system has no MMPM :-(
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| 66 | fdsMMPMAvailable = FALSE;
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[21878] | 67 | }
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[9232] | 68 | else
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| 69 | {
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| 70 | /* detect if MMPM is available */
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| 71 | if (DosQueryProcAddr(MMPMLibraryHandle,
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| 72 | 1, /* ORD_MCISENDCOMMAND */
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| 73 | NULL,
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[21878] | 74 | (PFN*)&pfnDSmciSendCommand) != NO_ERROR)
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[9232] | 75 | {
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| 76 | fdsMMPMAvailable = FALSE;
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[21878] | 77 | }
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[9232] | 78 | else
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| 79 | {
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| 80 | fdsMMPMAvailable = TRUE;
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| 81 | }
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| 82 |
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| 83 | /* see if we can get the address for the mciGetErrorString function */
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| 84 | if (fdsMMPMAvailable == TRUE)
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| 85 | {
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| 86 | if (DosQueryProcAddr(MMPMLibraryHandle,
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| 87 | 3, /* ORD_MCIGETERRORSTRING */
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| 88 | NULL,
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| 89 | (PFN*)&pfnDSmciGetErrorString) != NO_ERROR)
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| 90 | pfnDSmciGetErrorString = NULL;
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| 91 | }
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| 92 | dprintf(("MMPM/2 is available; hmod %x", MMPMLibraryHandle));
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| 93 | dprintf(("mciSendCommand %x", pfnDSmciSendCommand));
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| 94 | dprintf(("mciGetErrorString %x", pfnDSmciGetErrorString));
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| 95 | }
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| 96 | }
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| 97 |
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[21878] | 98 | if(fdsMMPMAvailable && RegOpenKeyA(HKEY_LOCAL_MACHINE, CUSTOM_BUILD_OPTIONS_KEY, &hKey) == 0)
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[9232] | 99 | {
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| 100 | DWORD dwSize, dwType;
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| 101 | DWORD dwFlag;
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| 102 |
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| 103 | dwSize = sizeof(dwFlag);
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| 104 | LONG rc = RegQueryValueExA(hKey, DISABLE_AUDIO_KEY,
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| 105 | NULL, &dwType,
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| 106 | (LPBYTE)&dwFlag,
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| 107 | &dwSize);
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| 108 |
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| 109 | if(rc == 0 && dwType == REG_DWORD) {
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| 110 | if(dwFlag) {
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| 111 | fdsMMPMAvailable = FALSE;
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| 112 | pfnDSmciGetErrorString = NULL;
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| 113 | pfnDSmciSendCommand = NULL;
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| 114 | }
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| 115 | }
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| 116 | RegCloseKey(hKey);
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| 117 | }
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| 118 | return TRUE;
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| 119 |
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[21878] | 120 | case DLL_THREAD_ATTACH:
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| 121 | case DLL_THREAD_DETACH:
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[9232] | 122 | return TRUE;
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| 123 |
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[21878] | 124 | case DLL_PROCESS_DETACH:
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[9232] | 125 | if(MMPMLibraryHandle) DosFreeModule(MMPMLibraryHandle);
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| 126 | return TRUE;
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[21878] | 127 | }
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| 128 | return FALSE;
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[9232] | 129 | }
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| 130 |
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| 131 | DWORD APIENTRY dsmciSendCommand(WORD wDeviceID,
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| 132 | WORD wMessage,
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| 133 | DWORD dwParam1,
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| 134 | PVOID dwParam2,
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| 135 | WORD wUserParm)
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| 136 | {
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| 137 | if(pfnDSmciSendCommand == NULL) {
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| 138 | DebugInt3();
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| 139 | return MCIERR_CANNOT_LOAD_DRIVER;
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| 140 | }
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| 141 | USHORT sel = RestoreOS2FS();
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| 142 | DWORD ret = pfnDSmciSendCommand(wDeviceID, wMessage, dwParam1, dwParam2, wUserParm);
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| 143 | SetFS(sel);
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| 144 | return ret;
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| 145 | }
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[21878] | 146 |
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[9232] | 147 | DWORD APIENTRY dsmciGetErrorString(DWORD dwError,
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| 148 | LPSTR lpstrBuffer,
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| 149 | WORD wLength)
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| 150 | {
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| 151 | if(pfnDSmciGetErrorString == NULL) {
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| 152 | DebugInt3();
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| 153 | return MCIERR_CANNOT_LOAD_DRIVER;
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| 154 | }
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| 155 | USHORT sel = RestoreOS2FS();
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| 156 | DWORD ret = pfnDSmciGetErrorString(dwError, lpstrBuffer, wLength);
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| 157 | SetFS(sel);
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| 158 | return ret;
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| 159 | }
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[21878] | 160 |
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| 161 | ULONG SYSTEM DLL_InitDSound(ULONG hModule)
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| 162 | {
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| 163 | DosQueryModuleName(hModule, CCHMAXPATH, dsoundPath);
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| 164 | char *endofpath = strrchr(dsoundPath, '\\');
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| 165 | if (endofpath)
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| 166 | *(endofpath+1) = 0;
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| 167 |
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| 168 | CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
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| 169 |
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| 170 | dllHandle = RegisterLxDll(hModule, LibMainDSound, (PVOID)&dsound_PEResTab);
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| 171 | if(dllHandle == 0)
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| 172 | return -1;
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| 173 |
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| 174 | dprintf(("dsound init %s %s (%x)", __DATE__, __TIME__, DLL_InitDSound));
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| 175 |
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| 176 | return 0;
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| 177 | }
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| 178 |
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| 179 | void SYSTEM DLL_TermDSound(ULONG hModule)
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| 180 | {
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| 181 | if (dllHandle)
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| 182 | UnregisterLxDll(dllHandle);
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| 183 | }
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| 184 |
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| 185 | ULONG SYSTEM DLL_Init(ULONG hModule)
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| 186 | {
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| 187 | if (DLL_InitDefault(hModule) == -1)
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| 188 | return -1;
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| 189 | return DLL_InitDSound(hModule);
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| 190 | }
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| 191 |
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| 192 | void SYSTEM DLL_Term(ULONG hModule)
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| 193 | {
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| 194 | DLL_TermDSound(hModule);
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| 195 | DLL_TermDefault(hModule);
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| 196 | }
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