dlls/msacm32/internal.c

   1 /*
   2  *      MSACM32 library
   3  *
   4  *      Copyright 1998  Patrik Stridvall
   5  */
   6
   7 #include <string.h>
   8
   9 #include "winbase.h"
  10 #include "winuser.h"
  11 #include "winerror.h"
  12 #include "driver.h"
  13 #include "heap.h"
  14 #include "mmsystem.h"
  15 #include "msacm.h"
  16 #include "msacmdrv.h"
  17 #include "debugtools.h"
  18
  19 /**********************************************************************/
  20
  21 HANDLE MSACM_hHeap = (HANDLE) NULL;
  22 PWINE_ACMDRIVERID MSACM_pFirstACMDriverID = NULL;
  23 PWINE_ACMDRIVERID MSACM_pLastACMDriverID = NULL;
  24
  25 /***********************************************************************
  26  *           MSACM_RegisterDriver32()
  27  */
  28 PWINE_ACMDRIVERID MSACM_RegisterDriver(
  29   LPSTR pszDriverAlias, LPSTR pszFileName,
  30   PWINE_ACMLOCALDRIVER pLocalDriver)
  31 {
  32   PWINE_ACMDRIVERID padid;
  33   padid = (PWINE_ACMDRIVERID) HeapAlloc(
  34     MSACM_hHeap, 0, sizeof(WINE_ACMDRIVERID)
  35   );
  36   padid->pszDriverAlias =
  37     HEAP_strdupA(MSACM_hHeap, 0, pszDriverAlias);
  38   padid->pszFileName =
  39     HEAP_strdupA(MSACM_hHeap, 0, pszFileName);
  40   padid->pACMLocalDriver = pLocalDriver;
  41   padid->bEnabled = TRUE;
  42   padid->pACMDriver = NULL;
  43   padid->pNextACMDriverID = NULL;
  44   padid->pPreviousACMDriverID =
  45     MSACM_pLastACMDriverID;
  46   MSACM_pLastACMDriverID = padid;
  47   if(!MSACM_pFirstACMDriverID)
  48     MSACM_pFirstACMDriverID = padid;
  49
  50   return padid;
  51 }
  52
  53 /***********************************************************************
  54  *           MSACM_RegisterAllDrivers32()
  55  */
  56 void MSACM_RegisterAllDrivers()
  57 {
  58   PWINE_ACMBUILTINDRIVER pbd;
  59   LPSTR pszBuffer;
  60   DWORD dwBufferLength;
  61
  62   /* FIXME
  63    *  What if the user edits system.ini while the program is running?
  64    *  Does Windows handle that?
  65    */
  66   if(!MSACM_pFirstACMDriverID)
  67     return;
  68
  69   /* FIXME: Do not work! How do I determine the section length? */
  70   dwBufferLength =
  71     GetPrivateProfileSectionA("drivers32", NULL, 0, "system.ini");
  72
  73   pszBuffer = (LPSTR) HeapAlloc(
  74     MSACM_hHeap, 0, dwBufferLength
  75   );
  76   if(GetPrivateProfileSectionA(
  77     "drivers32", pszBuffer, dwBufferLength, "system.ini"))
  78     {
  79       char *s = pszBuffer;
  80       while(*s)
  81         {
  82           if(!lstrncmpiA("MSACM.", s, 6))
  83             {
  84               char *s2 = s;
  85               while(*s2 != '\0' && *s2 != '=') s2++;
  86               if(*s2)
  87                 {
  88                   *s2++='\0';
  89                   MSACM_RegisterDriver(s, s2, NULL);
  90                 }
  91             }
  92           s += lstrlenA(s) + 1; /* Either next char or \0 */
  93         }
  94     }
  95
  96   /* FIXME
  97    *   Check if any of the builtin driver was added
  98    *   when the external drivers was.
  99    */
 100
 101   pbd = MSACM_BuiltinDrivers;
 102   while(pbd->pszDriverAlias)
 103     {
 104       PWINE_ACMLOCALDRIVER pld;
 105       pld = HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMLOCALDRIVER));
 106       pld->pfnDriverProc = pbd->pfnDriverProc;
 107       MSACM_RegisterDriver(pbd->pszDriverAlias, NULL, pld);
 108       pbd++;
 109     }
 110    HeapFree(MSACM_hHeap, 0, pszBuffer);
 111 }
 112
 113 /***********************************************************************
 114  *           MSACM_UnregisterDriver32()
 115  */
 116 PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p)
 117 {
 118   PWINE_ACMDRIVERID pNextACMDriverID;
 119
 120   if(p->pACMDriver)
 121     acmDriverClose((HACMDRIVER) p->pACMDriver, 0);
 122
 123   if(p->pszDriverAlias)
 124     HeapFree(MSACM_hHeap, 0, p->pszDriverAlias);
 125   if(p->pszFileName)
 126     HeapFree(MSACM_hHeap, 0, p->pszFileName);
 127   if(p->pACMLocalDriver)
 128     HeapFree(MSACM_hHeap, 0, p->pACMLocalDriver);
 129
 130   if(p->pPreviousACMDriverID)
 131     p->pPreviousACMDriverID->pNextACMDriverID = p->pNextACMDriverID;
 132   if(p->pNextACMDriverID)
 133     p->pNextACMDriverID->pPreviousACMDriverID = p->pPreviousACMDriverID;
 134
 135   pNextACMDriverID = p->pNextACMDriverID;
 136
 137   HeapFree(MSACM_hHeap, 0, p);
 138
 139   return pNextACMDriverID;
 140 }
 141
 142 /***********************************************************************
 143  *           MSACM_UnregisterAllDrivers32()
 144  * FIXME
 145  *   Where should this function be called?
 146  */
 147 void MSACM_UnregisterAllDrivers()
 148 {
 149   PWINE_ACMDRIVERID p = MSACM_pFirstACMDriverID;
 150   while(p) p = MSACM_UnregisterDriver(p);
 151 }
 152
 153 /***********************************************************************
 154  *           MSACM_GetDriverID32()
 155  */
 156 PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID)
 157 {
 158   return (PWINE_ACMDRIVERID) hDriverID;
 159 }
 160
 161 /***********************************************************************
 162  *           MSACM_GetDriver32()
 163  */
 164 PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver)
 165 {
 166   return (PWINE_ACMDRIVER) hDriver;
 167 }
 168
 169 /***********************************************************************
 170  *           MSACM_GetObj32()
 171  */
 172 PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj)
 173 {
 174   return (PWINE_ACMOBJ) hObj;
 175 }
 176
 177 /***********************************************************************
 178  *           MSACM_OpenDriverProc32
 179  * FIXME
 180  *  This function should be integrated with OpenDriver,
 181  *  renamed and moved there.
 182  */
 183 HDRVR MSACM_OpenDriverProc(DRIVERPROC pfnDriverProc)
 184 {
 185 #if 0
 186   LPDRIVERITEMA pDrvr;
 187
 188   /* FIXME: This is a very bad solution */
 189   pDrvr = (LPDRIVERITEMA) HeapAlloc(MSACM_hHeap, HEAP_ZERO_MEMORY, sizeof(DRIVERITEMA));
 190   pDrvr->count = 1;
 191   pDrvr->driverproc = pfnDriverProc;
 192
 193   /* FIXME: Send DRV_OPEN among others to DriverProc */
 194
 195   return (HDRVR) pDrvr;
 196 #else
 197   return (HDRVR) 0;
 198 #endif
 199 }
 200
 201
 202