dlls/msacm32/internal.c

   1 /*
   2  *      MSACM32 library
   3  *
   4  *      Copyright 1998  Patrik Stridvall
   5  */
   6
   7 #include "windows.h"
   8 #include "winerror.h"
   9 #include "wintypes.h"
  10 #include "debug.h"
  11 #include "driver.h"
  12 #include "heap.h"
  13 #include "mmsystem.h"
  14 #include "msacm.h"
  15 #include "msacmdrv.h"
  16
  17 /**********************************************************************/
  18
  19 HANDLE32 MSACM_hHeap32 = (HANDLE32) NULL;
  20 PWINE_ACMDRIVERID32 MSACM_pFirstACMDriverID32 = NULL;
  21 PWINE_ACMDRIVERID32 MSACM_pLastACMDriverID32 = NULL;
  22
  23 /***********************************************************************
  24  *           MSACM_RegisterDriver32()
  25  */
  26 PWINE_ACMDRIVERID32 MSACM_RegisterDriver32(
  27   LPSTR pszDriverAlias, LPSTR pszFileName,
  28   PWINE_ACMLOCALDRIVER32 pLocalDriver)
  29 {
  30   PWINE_ACMDRIVERID32 padid;
  31   padid = (PWINE_ACMDRIVERID32) HeapAlloc(
  32     MSACM_hHeap32, 0, sizeof(WINE_ACMDRIVERID32)
  33   );
  34   padid->pszDriverAlias =
  35     HEAP_strdupA(MSACM_hHeap32, 0, pszDriverAlias);
  36   padid->pszFileName =
  37     HEAP_strdupA(MSACM_hHeap32, 0, pszFileName);
  38   padid->pACMLocalDriver = pLocalDriver;
  39   padid->bEnabled = TRUE;
  40   padid->pACMDriver = NULL;
  41   padid->pNextACMDriverID = NULL;
  42   padid->pPreviousACMDriverID =
  43     MSACM_pLastACMDriverID32;
  44   MSACM_pLastACMDriverID32 = padid;
  45   if(!MSACM_pFirstACMDriverID32)
  46     MSACM_pFirstACMDriverID32 = padid;
  47
  48   return padid;
  49 }
  50
  51 /***********************************************************************
  52  *           MSACM_RegisterAllDrivers32()
  53  */
  54 void MSACM_RegisterAllDrivers32()
  55 {
  56   PWINE_ACMBUILTINDRIVER32 pbd;
  57   LPSTR pszBuffer;
  58   DWORD dwBufferLength;
  59
  60   /* FIXME
  61    *  What if the user edits system.ini while the program is running?
  62    *  Does Windows handle that?
  63    */
  64   if(!MSACM_pFirstACMDriverID32)
  65     return;
  66
  67   /* FIXME: Do not work! How do I determine the section length? */
  68   dwBufferLength =
  69     GetPrivateProfileSection32A("drivers32", NULL, 0, "system.ini");
  70
  71   pszBuffer = (LPSTR) HeapAlloc(
  72     MSACM_hHeap32, 0, dwBufferLength
  73   );
  74   if(GetPrivateProfileSection32A(
  75     "drivers32", pszBuffer, dwBufferLength, "system.ini"))
  76     {
  77       char *s = pszBuffer;
  78       while(*s)
  79         {
  80           if(!lstrncmpi32A("MSACM.", s, 6))
  81             {
  82               char *s2 = s;
  83               while(*s2 != '\0' && *s2 != '=') s2++;
  84               if(*s2)
  85                 {
  86                   *s2++='\0';
  87                   MSACM_RegisterDriver32(s, s2, NULL);
  88                 }
  89             }
  90           s += lstrlen32A(s) + 1; /* Either next char or \0 */
  91         }
  92     }
  93
  94   /* FIXME
  95    *   Check if any of the builtin driver was added
  96    *   when the external drivers was.
  97    */
  98
  99   pbd = MSACM_BuiltinDrivers32;
 100   while(pbd->pszDriverAlias)
 101     {
 102       PWINE_ACMLOCALDRIVER32 pld;
 103       pld = HeapAlloc(MSACM_hHeap32, 0, sizeof(WINE_ACMLOCALDRIVER32));
 104       pld->pfnDriverProc = pbd->pfnDriverProc;
 105       MSACM_RegisterDriver32(pbd->pszDriverAlias, NULL, pld);
 106       pbd++;
 107     }
 108    HeapFree(MSACM_hHeap32, 0, pszBuffer);
 109 }
 110
 111 /***********************************************************************
 112  *           MSACM_UnregisterDriver32()
 113  */
 114 PWINE_ACMDRIVERID32 MSACM_UnregisterDriver32(PWINE_ACMDRIVERID32 p)
 115 {
 116   PWINE_ACMDRIVERID32 pNextACMDriverID;
 117
 118   if(p->pACMDriver)
 119     acmDriverClose32((HACMDRIVER32) p->pACMDriver, 0);
 120
 121   if(p->pszDriverAlias)
 122     HeapFree(MSACM_hHeap32, 0, p->pszDriverAlias);
 123   if(p->pszFileName)
 124     HeapFree(MSACM_hHeap32, 0, p->pszFileName);
 125   if(p->pACMLocalDriver)
 126     HeapFree(MSACM_hHeap32, 0, p->pACMLocalDriver);
 127
 128   if(p->pPreviousACMDriverID)
 129     p->pPreviousACMDriverID->pNextACMDriverID = p->pNextACMDriverID;
 130   if(p->pNextACMDriverID)
 131     p->pNextACMDriverID->pPreviousACMDriverID = p->pPreviousACMDriverID;
 132
 133   pNextACMDriverID = p->pNextACMDriverID;
 134
 135   HeapFree(MSACM_hHeap32, 0, p);
 136
 137   return pNextACMDriverID;
 138 }
 139
 140 /***********************************************************************
 141  *           MSACM_UnregisterAllDrivers32()
 142  * FIXME
 143  *   Where should this function be called?
 144  */
 145 void MSACM_UnregisterAllDrivers32()
 146 {
 147   PWINE_ACMDRIVERID32 p = MSACM_pFirstACMDriverID32;
 148   while(p) p = MSACM_UnregisterDriver32(p);
 149 }
 150
 151 /***********************************************************************
 152  *           MSACM_GetDriverID32()
 153  */
 154 PWINE_ACMDRIVERID32 MSACM_GetDriverID32(HACMDRIVERID32 hDriverID)
 155 {
 156   return (PWINE_ACMDRIVERID32) hDriverID;
 157 }
 158
 159 /***********************************************************************
 160  *           MSACM_GetDriver32()
 161  */
 162 PWINE_ACMDRIVER32 MSACM_GetDriver32(HACMDRIVER32 hDriver)
 163 {
 164   return (PWINE_ACMDRIVER32) hDriver;
 165 }
 166
 167 /***********************************************************************
 168  *           MSACM_GetObj32()
 169  */
 170 PWINE_ACMOBJ32 MSACM_GetObj32(HACMOBJ32 hObj)
 171 {
 172   return (PWINE_ACMOBJ32) hObj;
 173 }
 174
 175 /***********************************************************************
 176  *           MSACM_OpenDriverProc32
 177  * FIXME
 178  *  This function should be integrated with OpenDriver,
 179  *  renamed and moved there.
 180  */
 181 HDRVR32 MSACM_OpenDriverProc32(DRIVERPROC32 pfnDriverProc)
 182 {
 183   LPDRIVERITEM32A pDrvr;
 184
 185   /* FIXME: This is a very bad solution */
 186   pDrvr = (LPDRIVERITEM32A) HeapAlloc(MSACM_hHeap32, HEAP_ZERO_MEMORY, sizeof(DRIVERITEM32A));
 187   pDrvr->count = 1;
 188   pDrvr->driverproc = pfnDriverProc;
 189
 190   /* FIXME: Send DRV_OPEN among others to DriverProc */
 191
 192   return (HDRVR32) pDrvr;
 193 }
 194
 195
 196