5 #define ASIODRV_DESC "description"
6 #define INPROC_SERVER "InprocServer32"
7 #define ASIO_PATH "software\\asio"
8 #define COM_CLSID "clsid"
10 // ******************************************************************
12 // ******************************************************************
13 static LONG findDrvPath (char *clsidstr,char *dllpath,int dllpathsize)
15 HKEY hkEnum,hksub,hkpath;
18 DWORD datatype,datasize;
25 CharLowerBuffA(clsidstr,strlen(clsidstr));
26 if ((cr = RegOpenKeyA(HKEY_CLASSES_ROOT,COM_CLSID,&hkEnum)) == ERROR_SUCCESS) {
29 while (cr == ERROR_SUCCESS && !found) {
30 cr = RegEnumKeyA(hkEnum,index++,databuf,512);
31 if (cr == ERROR_SUCCESS) {
32 CharLowerBuffA(databuf,strlen(databuf));
33 if (!(strcmp(databuf,clsidstr))) {
34 if ((cr = RegOpenKeyExA(hkEnum,databuf,0,KEY_READ,&hksub)) == ERROR_SUCCESS) {
35 if ((cr = RegOpenKeyExA(hksub,INPROC_SERVER,0,KEY_READ,&hkpath)) == ERROR_SUCCESS) {
36 datatype = REG_SZ; datasize = (DWORD)dllpathsize;
37 cr = RegQueryValueEx(hkpath,0,0,&datatype,(LPBYTE)dllpath,&datasize);
38 if (cr == ERROR_SUCCESS) {
39 memset(&ofs,0,sizeof(OFSTRUCT));
40 ofs.cBytes = sizeof(OFSTRUCT);
41 hfile = OpenFile(dllpath,&ofs,OF_EXIST);
48 found = TRUE; // break out
55 CharLowerBuff(clsidstr,strlen(clsidstr));
56 if ((cr = RegOpenKey(HKEY_CLASSES_ROOT,COM_CLSID,&hkEnum)) == ERROR_SUCCESS) {
59 while (cr == ERROR_SUCCESS && !found) {
60 cr = RegEnumKey(hkEnum,index++,databuf,512);
61 if (cr == ERROR_SUCCESS) {
62 CharLowerBuff(databuf,strlen(databuf));
63 if (!(strcmp(databuf,clsidstr))) {
64 if ((cr = RegOpenKeyEx(hkEnum,databuf,0,KEY_READ,&hksub)) == ERROR_SUCCESS) {
65 if ((cr = RegOpenKeyEx(hksub,INPROC_SERVER,0,KEY_READ,&hkpath)) == ERROR_SUCCESS) {
66 datatype = REG_SZ; datasize = (DWORD)dllpathsize;
67 cr = RegQueryValueEx(hkpath,0,0,&datatype,(LPBYTE)dllpath,&datasize);
68 if (cr == ERROR_SUCCESS) {
69 memset(&ofs,0,sizeof(OFSTRUCT));
70 ofs.cBytes = sizeof(OFSTRUCT);
71 hfile = OpenFile(dllpath,&ofs,OF_EXIST);
78 found = TRUE; // break out
89 static LPASIODRVSTRUCT newDrvStruct (HKEY hkey,char *keyname,int drvID,LPASIODRVSTRUCT lpdrv)
93 char dllpath[MAXPATHLEN];
96 DWORD datatype,datasize;
100 if ((cr = RegOpenKeyExA(hkey,keyname,0,KEY_READ,&hksub)) == ERROR_SUCCESS) {
102 datatype = REG_SZ; datasize = 256;
103 cr = RegQueryValueExA(hksub,COM_CLSID,0,&datatype,(LPBYTE)databuf,&datasize);
104 if (cr == ERROR_SUCCESS) {
105 rc = findDrvPath (databuf,dllpath,MAXPATHLEN);
107 lpdrv = new ASIODRVSTRUCT[1];
109 memset(lpdrv,0,sizeof(ASIODRVSTRUCT));
110 lpdrv->drvID = drvID;
111 MultiByteToWideChar(CP_ACP,0,(LPCSTR)databuf,-1,(LPWSTR)wData,100);
112 if ((cr = CLSIDFromString((LPOLESTR)wData,(LPCLSID)&clsid)) == S_OK) {
113 memcpy(&lpdrv->clsid,&clsid,sizeof(CLSID));
116 datatype = REG_SZ; datasize = 256;
117 cr = RegQueryValueExA(hksub,ASIODRV_DESC,0,&datatype,(LPBYTE)databuf,&datasize);
118 if (cr == ERROR_SUCCESS) {
119 strcpy(lpdrv->drvname,databuf);
121 else strcpy(lpdrv->drvname,keyname);
128 else lpdrv->next = newDrvStruct(hkey,keyname,drvID+1,lpdrv->next);
133 static void deleteDrvStruct (LPASIODRVSTRUCT lpdrv)
138 deleteDrvStruct(lpdrv->next);
139 if (lpdrv->asiodrv) {
140 iasio = (IASIO *)lpdrv->asiodrv;
148 static LPASIODRVSTRUCT getDrvStruct (int drvID,LPASIODRVSTRUCT lpdrv)
151 if (lpdrv->drvID == drvID) return lpdrv;
156 // ******************************************************************
159 // ******************************************************************
161 // ******************************************************************
162 AsioDriverList::AsioDriverList ()
165 char keyname[MAXDRVNAMELEN];
175 cr = RegOpenKeyA(HKEY_LOCAL_MACHINE,ASIO_PATH,&hkEnum);
177 cr = RegOpenKey(HKEY_LOCAL_MACHINE,ASIO_PATH,&hkEnum);
179 while (cr == ERROR_SUCCESS) {
181 if ((cr = RegEnumKeyA(hkEnum,index++,keyname,MAXDRVNAMELEN))== ERROR_SUCCESS) {
183 if ((cr = RegEnumKey(hkEnum,index++,keyname,MAXDRVNAMELEN))== ERROR_SUCCESS) {
185 lpdrvlist = newDrvStruct (hkEnum,keyname,0,lpdrvlist);
189 if (hkEnum) RegCloseKey(hkEnum);
197 if (numdrv) CoInitialize(0); // initialize COM
200 AsioDriverList::~AsioDriverList ()
203 deleteDrvStruct(lpdrvlist);
209 LONG AsioDriverList::asioGetNumDev (VOID)
215 LONG AsioDriverList::asioOpenDriver (int drvID,LPVOID *asiodrv)
217 LPASIODRVSTRUCT lpdrv = 0;
220 if (!asiodrv) return DRVERR_INVALID_PARAM;
222 if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
223 if (!lpdrv->asiodrv) {
224 rc = CoCreateInstance(lpdrv->clsid,0,CLSCTX_INPROC_SERVER,lpdrv->clsid,asiodrv);
226 lpdrv->asiodrv = *asiodrv;
229 // else if (rc == REGDB_E_CLASSNOTREG)
230 // strcpy (info->messageText, "Driver not registered in the Registration Database!");
232 else rc = DRVERR_DEVICE_ALREADY_OPEN;
234 else rc = DRVERR_DEVICE_NOT_FOUND;
240 LONG AsioDriverList::asioCloseDriver (int drvID)
242 LPASIODRVSTRUCT lpdrv = 0;
245 if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
246 if (lpdrv->asiodrv) {
247 iasio = (IASIO *)lpdrv->asiodrv;
256 LONG AsioDriverList::asioGetDriverName (int drvID,char *drvname,int drvnamesize)
258 LPASIODRVSTRUCT lpdrv = 0;
260 if (!drvname) return DRVERR_INVALID_PARAM;
262 if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
263 if (strlen(lpdrv->drvname) < (unsigned int)drvnamesize) {
264 strcpy(drvname,lpdrv->drvname);
267 memcpy(drvname,lpdrv->drvname,drvnamesize-4);
268 drvname[drvnamesize-4] = '.';
269 drvname[drvnamesize-3] = '.';
270 drvname[drvnamesize-2] = '.';
271 drvname[drvnamesize-1] = 0;
275 return DRVERR_DEVICE_NOT_FOUND;
278 LONG AsioDriverList::asioGetDriverPath (int drvID,char *dllpath,int dllpathsize)
280 LPASIODRVSTRUCT lpdrv = 0;
282 if (!dllpath) return DRVERR_INVALID_PARAM;
284 if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
285 if (strlen(lpdrv->dllpath) < (unsigned int)dllpathsize) {
286 strcpy(dllpath,lpdrv->dllpath);
290 return DRVERR_INVALID_PARAM;
292 return DRVERR_DEVICE_NOT_FOUND;
295 LONG AsioDriverList::asioGetDriverCLSID (int drvID,CLSID *clsid)
297 LPASIODRVSTRUCT lpdrv = 0;
299 if (!clsid) return DRVERR_INVALID_PARAM;
301 if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
302 memcpy(clsid,&lpdrv->clsid,sizeof(CLSID));
305 return DRVERR_DEVICE_NOT_FOUND;