git.oblomov.eu Git - wine/blob - dlls/winmm/mmio.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2 /*
   3  * MMIO functions
   4  *
   5  * Copyright 1998 Andrew Taylor
   6  * Copyright 1998 Ove Kåven
   7  * Copyright 2000 Eric Pouech
   8  */
   9
  10 /* Still to be done:
  11  *      + correct handling of global/local IOProcs
  12  *      + mode of mmio objects is not used (read vs write vs readwrite)
  13  *      + IO buffering is limited to 64k
  14  *      + optimization of internal buffers (seg / lin)
  15  *      + even in 32 bit only, a seg ptr IO buffer is allocated (after this is
  16  *        fixed, we'll have a proper 32/16 separation)
  17  *      + thread safeness
  18  *      + rename operation is broken
  19  */
  20
  21 #include <ctype.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <errno.h>
  25 #include <assert.h>
  26 #include "windef.h"
  27 #include "wine/winbase16.h"
  28 #include "heap.h"
  29 #include "selectors.h"
  30 #include "file.h"
  31 #include "mmsystem.h"
  32 #include "debugtools.h"
  33 #include "winemm.h"
  34
  35 DEFAULT_DEBUG_CHANNEL(mmio);
  36
  37 /**************************************************************************
  38  *                      mmioDosIOProc                           [internal]
  39  */
  40 static LRESULT CALLBACK mmioDosIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage,
  41                                       LPARAM lParam1, LPARAM lParam2)
  42 {
  43     LRESULT     ret = MMSYSERR_NOERROR;
  44
  45     TRACE("(%p, %X, %ld, %ld);\n", lpmmioinfo, uMessage, lParam1, lParam2);
  46
  47     switch (uMessage) {
  48     case MMIOM_OPEN:
  49         {
  50             /* Parameters:
  51              * lParam1 = szFileName parameter from mmioOpen
  52              * lParam2 = reserved (we use it for 16-bitness)
  53              * Returns: zero on success, error code on error
  54              * NOTE: lDiskOffset automatically set to zero
  55              */
  56             OFSTRUCT ofs;
  57             LPCSTR szFileName = (LPCSTR)lParam1;
  58
  59             if (lpmmioinfo->dwFlags & MMIO_GETTEMP) {
  60                 FIXME("MMIO_GETTEMP not implemented\n");
  61                 return MMIOERR_CANNOTOPEN;
  62             }
  63
  64             /* if filename NULL, assume open file handle in adwInfo[0] */
  65             if (!szFileName) {
  66                 if (lParam2)
  67                     lpmmioinfo->adwInfo[0] = FILE_GetHandle(lpmmioinfo->adwInfo[0]);
  68                 break;
  69             }
  70
  71             lpmmioinfo->adwInfo[0] = (DWORD)OpenFile(szFileName, &ofs,
  72                                                      lpmmioinfo->dwFlags);
  73             if (lpmmioinfo->adwInfo[0] == -1)
  74                 ret = MMIOERR_CANNOTOPEN;
  75         }
  76         break;
  77
  78     case MMIOM_CLOSE:
  79         /* Parameters:
  80          * lParam1 = wFlags parameter from mmioClose
  81          * lParam2 = unused
  82          * Returns: zero on success, error code on error
  83          */
  84         if (!(lParam1 & MMIO_FHOPEN))
  85             _lclose((HFILE)lpmmioinfo->adwInfo[0]);
  86         break;
  87
  88     case MMIOM_READ:
  89         /* Parameters:
  90          * lParam1 = huge pointer to read buffer
  91          * lParam2 = number of bytes to read
  92          * Returns: number of bytes read, 0 for EOF, -1 for error (error code
  93          *         in wErrorRet)
  94          */
  95         ret = _lread((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2);
  96         if (ret != -1)
  97             lpmmioinfo->lDiskOffset += ret;
  98
  99         break;
 100
 101     case MMIOM_WRITE:
 102     case MMIOM_WRITEFLUSH:
 103         /* no internal buffering, so WRITEFLUSH handled same as WRITE */
 104
 105         /* Parameters:
 106          * lParam1 = huge pointer to write buffer
 107          * lParam2 = number of bytes to write
 108          * Returns: number of bytes written, -1 for error (error code in
 109          *              wErrorRet)
 110          */
 111         ret = _hwrite((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2);
 112         if (ret != -1)
 113             lpmmioinfo->lDiskOffset += ret;
 114         break;
 115
 116     case MMIOM_SEEK:
 117         /* Parameters:
 118          * lParam1 = new position
 119          * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END)
 120          * Returns: new file postion, -1 on error
 121          */
 122         ret = _llseek((HFILE)lpmmioinfo->adwInfo[0], (LONG)lParam1, (LONG)lParam2);
 123         if (ret != -1)
 124             lpmmioinfo->lDiskOffset = ret;
 125         return ret;
 126
 127     case MMIOM_RENAME:
 128         /* Parameters:
 129          * lParam1 = old name
 130          * lParam2 = new name
 131          * Returns: zero on success, non-zero on failure
 132          */
 133          FIXME("MMIOM_RENAME incomplete\n");
 134          if (!MoveFileA((const char*)lParam1, (const char*)lParam2))
 135              ret = MMIOERR_FILENOTFOUND;
 136          break;
 137
 138     default:
 139         FIXME("unexpected message %u\n", uMessage);
 140         return 0;
 141     }
 142
 143     return ret;
 144 }
 145
 146 /**************************************************************************
 147  *                      mmioMemIOProc                           [internal]
 148  */
 149 static LRESULT CALLBACK mmioMemIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage,
 150                                       LPARAM lParam1, LPARAM lParam2)
 151 {
 152     TRACE("(%p,0x%04x,0x%08lx,0x%08lx)\n", lpmmioinfo, uMessage, lParam1, lParam2);
 153
 154     switch (uMessage) {
 155
 156     case MMIOM_OPEN:
 157         /* Parameters:
 158          * lParam1 = filename (must be NULL)
 159          * lParam2 = reserved (we use it for 16-bitness)
 160          * Returns: zero on success, error code on error
 161          * NOTE: lDiskOffset automatically set to zero
 162          */
 163         /* FIXME: io proc shouldn't change it */
 164         if (!(lpmmioinfo->dwFlags & MMIO_CREATE))
 165             lpmmioinfo->pchEndRead = lpmmioinfo->pchEndWrite;
 166         return 0;
 167
 168     case MMIOM_CLOSE:
 169         /* Parameters:
 170          * lParam1 = wFlags parameter from mmioClose
 171          * lParam2 = unused
 172          * Returns: zero on success, error code on error
 173          */
 174         return 0;
 175
 176     case MMIOM_READ:
 177         /* Parameters:
 178          * lParam1 = huge pointer to read buffer
 179          * lParam2 = number of bytes to read
 180          * Returns: number of bytes read, 0 for EOF, -1 for error (error code
 181          *         in wErrorRet)
 182          * NOTE: lDiskOffset should be updated
 183          */
 184         FIXME("MMIOM_READ on memory files should not occur, buffer may be lost!\n");
 185         return 0;
 186
 187     case MMIOM_WRITE:
 188     case MMIOM_WRITEFLUSH:
 189         /* no internal buffering, so WRITEFLUSH handled same as WRITE */
 190
 191         /* Parameters:
 192          * lParam1 = huge pointer to write buffer
 193          * lParam2 = number of bytes to write
 194          * Returns: number of bytes written, -1 for error (error code in
 195          *              wErrorRet)
 196          * NOTE: lDiskOffset should be updated
 197          */
 198         FIXME("MMIOM_WRITE on memory files should not occur, buffer may be lost!\n");
 199         return 0;
 200
 201     case MMIOM_SEEK:
 202         /* Parameters:
 203          * lParam1 = new position
 204          * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END)
 205          * Returns: new file postion, -1 on error
 206          * NOTE: lDiskOffset should be updated
 207          */
 208         FIXME("MMIOM_SEEK on memory files should not occur, buffer may be lost!\n");
 209         return -1;
 210
 211     default:
 212         FIXME("unexpected message %u\n", uMessage);
 213         return 0;
 214     }
 215
 216     return 0;
 217 }
 218
 219
 220 enum mmioProcType {MMIO_PROC_16,MMIO_PROC_32A,MMIO_PROC_32W};
 221
 222 struct IOProcList
 223 {
 224     struct IOProcList*pNext;       /* Next item in linked list */
 225     FOURCC            fourCC;      /* four-character code identifying IOProc */
 226     LPMMIOPROC        pIOProc;     /* pointer to IProc */
 227     enum mmioProcType type;        /* 16, 32A or 32W */
 228     int               count;       /* number of objects linked to it */
 229 };
 230
 231 /* This array will be the entire list for most apps */
 232
 233 static struct IOProcList defaultProcs[] = {
 234     {&defaultProcs[1], FOURCC_DOS, (LPMMIOPROC)mmioDosIOProc, MMIO_PROC_32A, 0},
 235     {NULL,             FOURCC_MEM, (LPMMIOPROC)mmioMemIOProc, MMIO_PROC_32A, 0},
 236 };
 237
 238 static struct IOProcList*       pIOProcListAnchor = &defaultProcs[0];
 239
 240 /****************************************************************
 241  *              MMIO_FindProcNode                       [INTERNAL]
 242  *
 243  * Finds the ProcList node associated with a given FOURCC code.
 244  */
 245 static struct IOProcList*       MMIO_FindProcNode(FOURCC fccIOProc)
 246 {
 247     struct IOProcList*  pListNode;
 248
 249     for (pListNode = pIOProcListAnchor; pListNode; pListNode = pListNode->pNext) {
 250         if (pListNode->fourCC == fccIOProc) {
 251             return pListNode;
 252         }
 253     }
 254     return NULL;
 255 }
 256
 257 /****************************************************************
 258  *              MMIO_InstallIOProc                      [INTERNAL]
 259  */
 260 static LPMMIOPROC MMIO_InstallIOProc(FOURCC fccIOProc, LPMMIOPROC pIOProc,
 261                                      DWORD dwFlags, enum mmioProcType type)
 262 {
 263     LPMMIOPROC          lpProc = NULL;
 264     struct IOProcList*  pListNode;
 265     struct IOProcList** ppListNode;
 266
 267     TRACE("(%ld, %p, %08lX, %i)\n", fccIOProc, pIOProc, dwFlags, type);
 268
 269     if (dwFlags & MMIO_GLOBALPROC)
 270         FIXME("Global procedures not implemented\n");
 271
 272     /* just handle the known procedures for now */
 273     switch (dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) {
 274     case MMIO_INSTALLPROC:
 275         /* Create new entry for the IOProc list */
 276         pListNode = HeapAlloc(GetProcessHeap(), 0, sizeof(*pListNode));
 277         if (pListNode) {
 278             /* Fill in this node */
 279             pListNode->fourCC = fccIOProc;
 280             pListNode->pIOProc = pIOProc;
 281             pListNode->type = type;
 282             pListNode->count = 0;
 283
 284             /* Stick it on the end of the list */
 285             pListNode->pNext = pIOProcListAnchor;
 286             pIOProcListAnchor = pListNode;
 287
 288             /* Return this IOProc - that's how the caller knows we succeeded */
 289             lpProc = pIOProc;
 290         }
 291         break;
 292
 293     case MMIO_REMOVEPROC:
 294         /*
 295          * Search for the node that we're trying to remove - note
 296          * that this method won't find the first item on the list, but
 297          * since the first two items on this list are ones we won't
 298          * let the user delete anyway, that's okay
 299          */
 300         ppListNode = &pIOProcListAnchor;
 301         while ((*ppListNode) && (*ppListNode)->fourCC != fccIOProc)
 302             ppListNode = &((*ppListNode)->pNext);
 303
 304         if (*ppListNode) { /* found it */
 305             /* FIXME: what should be done if an open mmio object uses this proc ?
 306              * shall we return an error, nuke the mmio object ?
 307              */
 308             if ((*ppListNode)->count) {
 309                 ERR("Cannot remove a mmIOProc while in use\n");
 310                 break;
 311             }
 312             /* remove it, but only if it isn't builtin */
 313             if ((*ppListNode) >= defaultProcs &&
 314                 (*ppListNode) < defaultProcs + sizeof(defaultProcs)) {
 315                 WARN("Tried to remove built-in mmio proc. Skipping\n");
 316             } else {
 317                 /* Okay, nuke it */
 318                 struct IOProcList*  ptmpNode = *ppListNode;
 319                 lpProc = (*ppListNode)->pIOProc;
 320                 *ppListNode = (*ppListNode)->pNext;
 321                 HeapFree(GetProcessHeap(), 0, ptmpNode);
 322             }
 323         }
 324         break;
 325
 326     case MMIO_FINDPROC:
 327         if ((pListNode = MMIO_FindProcNode(fccIOProc))) {
 328             lpProc = pListNode->pIOProc;
 329         }
 330         break;
 331     }
 332
 333     return lpProc;
 334 }
 335
 336 /****************************************************************
 337  *                      MMIO_Map32To16                  [INTERNAL]
 338  */
 339 static LRESULT  MMIO_Map32To16(DWORD wMsg, LPARAM* lp1, LPARAM* lp2)
 340 {
 341     switch (wMsg) {
 342     case MMIOM_OPEN:
 343         {
 344             void*       lp = SEGPTR_ALLOC(strlen((LPSTR)*lp1) + 1);
 345             if (!lp) return MMSYSERR_NOMEM;
 346
 347             strcpy((void*)SEGPTR_GET(lp), (LPSTR)*lp1);
 348             *lp1 = (LPARAM)lp;
 349         }
 350         break;
 351     case MMIOM_CLOSE:
 352     case MMIOM_SEEK:
 353         /* nothing to do */
 354         break;
 355     case MMIOM_READ:
 356     case MMIOM_WRITE:
 357     case MMIOM_WRITEFLUSH:
 358         {
 359             void*       lp = SEGPTR_ALLOC(*lp2);
 360             if (!lp) return MMSYSERR_NOMEM;
 361
 362             if (wMsg != MMIOM_READ)
 363                 memcpy((void*)SEGPTR_GET(lp), (void*)*lp1, *lp2);
 364             *lp1 = (LPARAM)lp;
 365         }
 366         break;
 367     default:
 368         TRACE("Not a mappable message (%ld)\n", wMsg);
 369     }
 370     return MMSYSERR_NOERROR;
 371 }
 372
 373 /****************************************************************
 374  *              MMIO_UnMap32To16                        [INTERNAL]
 375  */
 376 static LRESULT  MMIO_UnMap32To16(DWORD wMsg, LPARAM lParam1, LPARAM lParam2,
 377                                  LPARAM lp1, LPARAM lp2)
 378 {
 379     switch (wMsg) {
 380     case MMIOM_OPEN:
 381         if (!SEGPTR_FREE((void*)lp1)) {
 382             FIXME("bad free line=%d\n", __LINE__);
 383         }
 384         break;
 385     case MMIOM_CLOSE:
 386     case MMIOM_SEEK:
 387         /* nothing to do */
 388         break;
 389     case MMIOM_READ:
 390         memcpy((void*)lParam1, (void*)SEGPTR_GET((void*)lp1), lp2);
 391         /* fall thru */
 392     case MMIOM_WRITE:
 393     case MMIOM_WRITEFLUSH:
 394         if (!SEGPTR_FREE((void*)lp1)) {
 395             FIXME("bad free line=%d\n", __LINE__);
 396         }
 397         break;
 398     default:
 399         TRACE("Not a mappable message (%ld)\n", wMsg);
 400     }
 401     return MMSYSERR_NOERROR;
 402 }
 403
 404 /****************************************************************
 405  *              MMIO_GenerateInfoForIOProc              [INTERNAL]
 406  */
 407 static  SEGPTR  MMIO_GenerateInfoForIOProc(const WINE_MMIO* wm)
 408 {
 409     SEGPTR              lp = (SEGPTR)SEGPTR_ALLOC(sizeof(MMIOINFO16));
 410     LPMMIOINFO16        mmioInfo16 = (LPMMIOINFO16)SEGPTR_GET((void*)lp);
 411
 412     memset(mmioInfo16, 0, sizeof(MMIOINFO16));
 413
 414     mmioInfo16->lDiskOffset = wm->info.lDiskOffset;
 415     mmioInfo16->adwInfo[0]  = wm->info.adwInfo[0];
 416     mmioInfo16->adwInfo[1]  = wm->info.adwInfo[1];
 417     mmioInfo16->adwInfo[2]  = wm->info.adwInfo[2];
 418     mmioInfo16->adwInfo[3]  = wm->info.adwInfo[3];
 419
 420     return lp;
 421 }
 422
 423 /****************************************************************
 424  *              MMIO_UpdateInfoForIOProc                [INTERNAL]
 425  */
 426 static  LRESULT MMIO_UpdateInfoForIOProc(WINE_MMIO* wm, SEGPTR segmmioInfo16)
 427 {
 428     const MMIOINFO16*   mmioInfo16;
 429
 430     mmioInfo16 = (const MMIOINFO16*)SEGPTR_GET((void*)segmmioInfo16);
 431
 432     wm->info.lDiskOffset = mmioInfo16->lDiskOffset;
 433     wm->info.adwInfo[0]  = mmioInfo16->adwInfo[0];
 434     wm->info.adwInfo[1]  = mmioInfo16->adwInfo[1];
 435     wm->info.adwInfo[2]  = mmioInfo16->adwInfo[2];
 436     wm->info.adwInfo[3]  = mmioInfo16->adwInfo[3];
 437
 438     if (!SEGPTR_FREE((void*)segmmioInfo16)) {
 439         FIXME("bad free line=%d\n", __LINE__);
 440     }
 441
 442     return MMSYSERR_NOERROR;
 443 }
 444
 445 /****************************************************************
 446  *              MMIO_SendMessage                        [INTERNAL]
 447  */
 448 static LRESULT  MMIO_SendMessage(LPWINE_MMIO wm, DWORD wMsg, LPARAM lParam1,
 449                                  LPARAM lParam2, enum mmioProcType type)
 450 {
 451     LRESULT             result;
 452     SEGPTR              segmmioInfo16;
 453     LPARAM              lp1 = lParam1, lp2 = lParam2;
 454
 455     if (!wm->ioProc || !wm->info.pIOProc) {
 456         ERR("brrr\n");
 457         result = MMSYSERR_INVALPARAM;
 458     }
 459
 460     switch (wm->ioProc->type) {
 461     case MMIO_PROC_16:
 462         segmmioInfo16 = MMIO_GenerateInfoForIOProc(wm);
 463         if (wm->ioProc->type != type) {
 464             /* map (lParam1, lParam2) into (lp1, lp2) 32=>16 */
 465             if ((result = MMIO_Map32To16(wMsg, &lp1, &lp2)) != MMSYSERR_NOERROR)
 466                 return result;
 467         }
 468         /* FIXME: is wm->info.pIOProc a segmented or a linear address ?
 469          * sounds to me it's a segmented one, should use a thunk somewhere
 470          */
 471         result = ((LPMMIOPROC16)wm->info.pIOProc)((LPSTR)segmmioInfo16,
 472                                                   wMsg, lp1, lp2);
 473
 474         if (wm->ioProc->type != type) {
 475             MMIO_UnMap32To16(wMsg, lParam1, lParam2, lp1, lp2);
 476         }
 477         MMIO_UpdateInfoForIOProc(wm, segmmioInfo16);
 478         break;
 479     case MMIO_PROC_32A:
 480     case MMIO_PROC_32W:
 481         if (wm->ioProc->type != type) {
 482             /* map (lParam1, lParam2) into (lp1, lp2) 16=>32 */
 483             WARN("NIY\n");
 484         }
 485         result = (wm->info.pIOProc)((LPSTR)&wm->info, wMsg, lp1, lp2);
 486
 487 #if 0
 488         if (wm->ioProc->type != type) {
 489             /* unmap (lParam1, lParam2) into (lp1, lp2) 16=>32 */
 490         }
 491 #endif
 492         break;
 493     default:
 494         FIXME("Internal error\n");
 495         result = MMSYSERR_ERROR;
 496     }
 497
 498     return result;
 499 }
 500
 501 /**************************************************************************
 502  *                              MMIO_ParseExt                   [internal]
 503  *
 504  * Parses a filename for the extension.
 505  *
 506  * RETURNS
 507  *  The FOURCC code for the extension if found, else 0.
 508  */
 509 static FOURCC MMIO_ParseExt(LPCSTR szFileName)
 510 {
 511     /* Filenames are of the form file.ext+ABC
 512        FIXME: What if a '+' is part of the file name?
 513        For now, we take the last '+' present */
 514
 515     FOURCC ret = 0;
 516
 517     /* Note that ext{Start,End} point to the . and + respectively */
 518     LPSTR extEnd;
 519
 520     TRACE("(%s)\n",debugstr_a(szFileName));
 521
 522     extEnd = strrchr(szFileName,'+');
 523     if (extEnd) {
 524         /* Need to parse to find the extension */
 525         LPSTR extStart;
 526
 527         extStart = extEnd;
 528         while (extStart > szFileName && extStart[0] != '.') {
 529             extStart--;
 530         }
 531
 532         if (extStart == szFileName) {
 533             ERR("+ but no . in szFileName: %s\n", debugstr_a(szFileName));
 534         } else {
 535             CHAR ext[5];
 536
 537             if (extEnd - extStart - 1 > 4)
 538                 WARN("Extension length > 4\n");
 539             lstrcpynA(ext,extStart + 1,min(extEnd-extStart,5));
 540             TRACE("Got extension: %s\n", debugstr_a(ext));
 541             /* FOURCC codes identifying file-extentions must be uppercase */
 542             ret = mmioStringToFOURCCA(ext, MMIO_TOUPPER);
 543         }
 544     }
 545     return ret;
 546 }
 547
 548 /**************************************************************************
 549  *                              MMIO_Get                        [internal]
 550  *
 551  * Retirieves from current process the mmio object
 552  */
 553 static  LPWINE_MMIO     MMIO_Get(LPWINE_MM_IDATA iData, HMMIO h)
 554 {
 555     LPWINE_MMIO         wm = NULL;
 556
 557     if (!iData) iData = MULTIMEDIA_GetIData();
 558
 559     EnterCriticalSection(&iData->cs);
 560     for (wm = iData->lpMMIO; wm; wm = wm->lpNext) {
 561         if (wm->info.hmmio == h)
 562             break;
 563     }
 564     LeaveCriticalSection(&iData->cs);
 565     return wm;
 566 }
 567
 568 /**************************************************************************
 569  *                              MMIO_Create                     [internal]
 570  *
 571  * Creates an internal representation for a mmio instance
 572  */
 573 static  LPWINE_MMIO             MMIO_Create(void)
 574 {
 575     static      WORD    MMIO_counter = 0;
 576     LPWINE_MMIO         wm;
 577     LPWINE_MM_IDATA     iData = MULTIMEDIA_GetIData();
 578
 579     wm = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WINE_MMIO));
 580     if (wm) {
 581         EnterCriticalSection(&iData->cs);
 582         while (MMIO_Get(iData, ++MMIO_counter));
 583         wm->info.hmmio = MMIO_counter;
 584         wm->lpNext = iData->lpMMIO;
 585         iData->lpMMIO = wm;
 586         LeaveCriticalSection(&iData->cs);
 587     }
 588     return wm;
 589 }
 590
 591 /**************************************************************************
 592  *                              MMIO_Destroy                    [internal]
 593  *-
 594  * Destroys an internal representation for a mmio instance
 595  */
 596 static  BOOL            MMIO_Destroy(LPWINE_MMIO wm)
 597 {
 598     LPWINE_MM_IDATA     iData = MULTIMEDIA_GetIData();
 599     LPWINE_MMIO*        m;
 600
 601     EnterCriticalSection(&iData->cs);
 602     for (m = &(iData->lpMMIO); *m && *m != wm; m = &(*m)->lpNext);
 603     if (*m) {
 604         *m = (*m)->lpNext;
 605         HeapFree(GetProcessHeap(), 0, wm);
 606         wm = NULL;
 607     }
 608     LeaveCriticalSection(&iData->cs);
 609     return wm ? FALSE : TRUE;
 610 }
 611
 612 /****************************************************************
 613  *                      MMIO_Flush                      [INTERNAL]
 614  */
 615 static  LRESULT MMIO_Flush(WINE_MMIO* wm, UINT uFlags)
 616 {
 617     if ((!wm->info.cchBuffer) || (wm->info.fccIOProc == FOURCC_MEM)) {
 618         return 0;
 619     }
 620
 621     /* not quite sure what to do here, but I'll guess */
 622     if (wm->info.dwFlags & MMIO_DIRTY) {
 623         MMIO_SendMessage(wm, MMIOM_SEEK, wm->info.lDiskOffset,
 624                          SEEK_SET, MMIO_PROC_32A);
 625         MMIO_SendMessage(wm, MMIOM_WRITE, (LPARAM)wm->info.pchBuffer,
 626                          wm->info.pchNext - wm->info.pchBuffer, MMIO_PROC_32A);
 627         wm->info.dwFlags &= ~MMIO_DIRTY;
 628     }
 629     if (uFlags & MMIO_EMPTYBUF)
 630         wm->info.pchNext = wm->info.pchBuffer;
 631
 632     return 0;
 633 }
 634
 635 /***************************************************************************
 636  *                      MMIO_GrabNextBuffer                     [INTERNAL]
 637  */
 638 static LONG     MMIO_GrabNextBuffer(LPWINE_MMIO wm, int for_read)
 639 {
 640     LONG        size = wm->info.cchBuffer;
 641
 642     TRACE("bo=%lx do=%lx of=%lx\n",
 643           wm->info.lBufOffset, wm->info.lDiskOffset,
 644           MMIO_SendMessage(wm, MMIOM_SEEK, 0, SEEK_CUR, MMIO_PROC_32A));
 645
 646     wm->info.lBufOffset = wm->info.lDiskOffset;
 647     wm->info.pchNext = wm->info.pchBuffer;
 648     wm->info.pchEndRead = wm->info.pchBuffer;
 649     wm->info.pchEndWrite = wm->info.pchBuffer;
 650
 651     if (for_read) {
 652         size = MMIO_SendMessage(wm, MMIOM_READ, (LPARAM)wm->info.pchBuffer,
 653                                 size, MMIO_PROC_32A);
 654         if (size > 0)
 655             wm->info.pchEndRead += size;
 656     }
 657     wm->bBufferLoaded = TRUE;
 658     return size;
 659 }
 660
 661 /***************************************************************************
 662  *                      MMIO_SetBuffer                          [INTERNAL]
 663  */
 664 static  UINT    MMIO_SetBuffer(WINE_MMIO* wm, void* pchBuffer, LONG cchBuffer,
 665                                UINT uFlags, BOOL bFrom32)
 666 {
 667     TRACE("(%p %p %ld %u %d)\n", wm, pchBuffer, cchBuffer, uFlags, bFrom32);
 668
 669     if (uFlags)                 return MMSYSERR_INVALPARAM;
 670     if (cchBuffer > 0xFFFF) {
 671         FIXME("Not handling huge mmio buffers yet (%ld >= 64k)\n", cchBuffer);
 672         return MMSYSERR_INVALPARAM;
 673     }
 674
 675     if (MMIO_Flush(wm, MMIO_EMPTYBUF) != 0)
 676         return MMIOERR_CANNOTWRITE;
 677
 678     if ((!cchBuffer || pchBuffer) && (wm->info.dwFlags & MMIO_ALLOCBUF)) {
 679         GlobalUnlock16(wm->hMem);
 680         GlobalFree16(wm->hMem);
 681         wm->info.dwFlags &= ~MMIO_ALLOCBUF;
 682     }
 683     if (pchBuffer) {
 684         if (bFrom32) {
 685             wm->info.pchBuffer = pchBuffer;
 686             wm->buffer16 = 0;
 687         } else {
 688             wm->info.pchBuffer = PTR_SEG_TO_LIN(pchBuffer);
 689             wm->buffer16 = (SEGPTR)pchBuffer;
 690         }
 691         wm->hMem = 0;
 692     } else if (cchBuffer && (wm->info.dwFlags & MMIO_ALLOCBUF)) {
 693         HGLOBAL16 hNewBuf;
 694         GlobalUnlock16(wm->hMem);
 695         hNewBuf = GlobalReAlloc16(wm->hMem, cchBuffer, 0);
 696         if (!hNewBuf) {
 697             /* FIXME: this assumes the memory block didn't move */
 698             GlobalLock16(wm->hMem);
 699             return MMIOERR_OUTOFMEMORY;
 700         }
 701         wm->hMem = hNewBuf;
 702     } else if (cchBuffer) {
 703         if (!(wm->hMem = GlobalAlloc16(GMEM_MOVEABLE, cchBuffer)))
 704             return MMIOERR_OUTOFMEMORY;
 705         wm->info.dwFlags |= MMIO_ALLOCBUF;
 706     } else {
 707         wm->info.pchBuffer = NULL;
 708         wm->hMem = 0;
 709         wm->buffer16 = 0;
 710     }
 711
 712     if (wm->hMem) {
 713         wm->buffer16 = WIN16_GlobalLock16(wm->hMem);
 714         wm->info.pchBuffer = (void*)PTR_SEG_TO_LIN((void*)wm->buffer16);
 715     }
 716
 717     wm->info.cchBuffer = cchBuffer;
 718     wm->info.pchNext = wm->info.pchBuffer;
 719     wm->info.pchEndRead = wm->info.pchBuffer;
 720     wm->info.pchEndWrite = wm->info.pchBuffer + cchBuffer;
 721     wm->info.lBufOffset = 0;
 722     wm->bBufferLoaded = FALSE;
 723
 724     return 0;
 725 }
 726
 727 /**************************************************************************
 728  *                      MMIO_Open                               [internal]
 729  */
 730 static HMMIO MMIO_Open(LPSTR szFileName, MMIOINFO* refmminfo,
 731                        DWORD dwOpenFlags, enum mmioProcType type)
 732 {
 733     LPWINE_MMIO         wm;
 734
 735     TRACE("('%s', %p, %08lX, %d);\n", szFileName, refmminfo, dwOpenFlags, type);
 736
 737     if (dwOpenFlags & (MMIO_PARSE|MMIO_EXIST)) {
 738         char    buffer[MAX_PATH];
 739
 740         if (GetFullPathNameA(szFileName, sizeof(buffer), buffer, NULL) >= sizeof(buffer))
 741             return (HMMIO16)FALSE;
 742         if ((dwOpenFlags & MMIO_EXIST) && (GetFileAttributesA(buffer) == -1))
 743             return (HMMIO)FALSE;
 744         strcpy(szFileName, buffer);
 745         return (HMMIO)TRUE;
 746     }
 747
 748     if ((wm = MMIO_Create()) == NULL)
 749         return 0;
 750
 751     /* If both params are NULL, then parse the file name */
 752     if (refmminfo->fccIOProc == 0 && refmminfo->pIOProc == NULL) {
 753         wm->info.fccIOProc = MMIO_ParseExt(szFileName);
 754         /* Handle any unhandled/error case. Assume DOS file */
 755         if (wm->info.fccIOProc == 0)
 756             wm->info.fccIOProc = FOURCC_DOS;
 757         if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2;
 758         wm->info.pIOProc = wm->ioProc->pIOProc;
 759         wm->bTmpIOProc = FALSE;
 760     }
 761     /* if just the four character code is present, look up IO proc */
 762     else if (refmminfo->pIOProc == NULL) {
 763         wm->info.fccIOProc = refmminfo->fccIOProc;
 764         if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2;
 765         wm->info.pIOProc = wm->ioProc->pIOProc;
 766         wm->bTmpIOProc = FALSE;
 767     }
 768     /* if IO proc specified, use it and specified four character code */
 769     else {
 770         wm->info.fccIOProc = refmminfo->fccIOProc;
 771         wm->info.pIOProc = refmminfo->pIOProc;
 772         MMIO_InstallIOProc(wm->info.fccIOProc, wm->info.pIOProc,
 773                            MMIO_INSTALLPROC, type);
 774         if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2;
 775         assert(wm->ioProc->pIOProc == refmminfo->pIOProc);
 776         wm->info.pIOProc = wm->ioProc->pIOProc;
 777         wm->bTmpIOProc = TRUE;
 778     }
 779
 780     wm->bBufferLoaded = FALSE;
 781     wm->ioProc->count++;
 782
 783     if (dwOpenFlags & MMIO_ALLOCBUF) {
 784         if ((refmminfo->wErrorRet = mmioSetBuffer(wm->info.hmmio, NULL,
 785                                                   MMIO_DEFAULTBUFFER, 0)))
 786             goto error1;
 787     } else if (wm->info.fccIOProc == FOURCC_MEM) {
 788         refmminfo->wErrorRet = MMIO_SetBuffer(wm, refmminfo->pchBuffer,
 789                                               refmminfo->cchBuffer, 0,
 790                                               type != MMIO_PROC_16);
 791         if (refmminfo->wErrorRet != MMSYSERR_NOERROR)
 792             goto error1;
 793     } /* else => unbuffered, wm->info.pchBuffer == NULL */
 794
 795     /* see mmioDosIOProc for that one */
 796     wm->info.adwInfo[0] = refmminfo->adwInfo[0];
 797     wm->info.dwFlags = dwOpenFlags;
 798
 799     /* call IO proc to actually open file */
 800     refmminfo->wErrorRet = MMIO_SendMessage(wm, MMIOM_OPEN, (LPARAM)szFileName,
 801                                             type == MMIO_PROC_16, MMIO_PROC_32A);
 802
 803     if (refmminfo->wErrorRet == 0)
 804         return wm->info.hmmio;
 805  error1:
 806     if (wm->ioProc) wm->ioProc->count--;
 807  error2:
 808     MMIO_Destroy(wm);
 809     return 0;
 810 }
 811
 812 /**************************************************************************
 813  *                              mmioOpenW                       [WINMM.123]
 814  */
 815 HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo,
 816                        DWORD dwOpenFlags)
 817 {
 818     HMMIO       ret;
 819     LPSTR       szFn = HEAP_strdupWtoA(GetProcessHeap(), 0, szFileName);
 820
 821     if (lpmmioinfo) {
 822         ret = MMIO_Open(szFn, lpmmioinfo, dwOpenFlags, MMIO_PROC_32W);
 823     } else {
 824         MMIOINFO        mmioinfo;
 825
 826         mmioinfo.fccIOProc = 0;
 827         mmioinfo.pIOProc = NULL;
 828         mmioinfo.pchBuffer = NULL;
 829         mmioinfo.cchBuffer = 0;
 830
 831         ret = MMIO_Open(szFn, &mmioinfo, dwOpenFlags, MMIO_PROC_32W);
 832     }
 833
 834     HeapFree(GetProcessHeap(), 0, szFn);
 835     return ret;
 836 }
 837
 838 /**************************************************************************
 839  *                              mmioOpenA                       [WINMM.122]
 840  */
 841 HMMIO WINAPI mmioOpenA(LPSTR szFileName, MMIOINFO* lpmmioinfo,
 842                        DWORD dwOpenFlags)
 843 {
 844     HMMIO       ret;
 845
 846     if (lpmmioinfo) {
 847         ret = MMIO_Open(szFileName, lpmmioinfo, dwOpenFlags, MMIO_PROC_32A);
 848     } else {
 849         MMIOINFO        mmioinfo;
 850
 851         mmioinfo.fccIOProc = 0;
 852         mmioinfo.pIOProc = NULL;
 853         mmioinfo.pchBuffer = NULL;
 854         mmioinfo.cchBuffer = 0;
 855
 856         ret = MMIO_Open(szFileName, &mmioinfo, dwOpenFlags, MMIO_PROC_32A);
 857     }
 858     return ret;
 859 }
 860
 861 /**************************************************************************
 862  *                              mmioOpen                [MMSYSTEM.1210]
 863  */
 864 HMMIO16 WINAPI mmioOpen16(LPSTR szFileName, MMIOINFO16* lpmmioinfo16,
 865                           DWORD dwOpenFlags)
 866 {
 867     HMMIO       ret;
 868     MMIOINFO    mmio;
 869
 870     if (lpmmioinfo16) {
 871         MMIOINFO        mmioinfo;
 872
 873         memset(&mmioinfo, 0, sizeof(mmioinfo));
 874
 875         mmioinfo.dwFlags     = lpmmioinfo16->dwFlags;
 876         mmioinfo.fccIOProc   = lpmmioinfo16->fccIOProc;
 877         mmioinfo.pIOProc     = (LPMMIOPROC)lpmmioinfo16->pIOProc;
 878         mmioinfo.cchBuffer   = lpmmioinfo16->cchBuffer;
 879         mmioinfo.pchBuffer   = lpmmioinfo16->pchBuffer;
 880         mmioinfo.adwInfo[0]  = lpmmioinfo16->adwInfo[0];
 881         mmioinfo.adwInfo[1]  = lpmmioinfo16->adwInfo[1];
 882         mmioinfo.adwInfo[2]  = lpmmioinfo16->adwInfo[2];
 883         mmioinfo.adwInfo[3]  = lpmmioinfo16->adwInfo[3];
 884
 885         ret = MMIO_Open(szFileName, &mmioinfo, dwOpenFlags, MMIO_PROC_16);
 886
 887         mmioGetInfo16(mmioinfo.hmmio, lpmmioinfo16, 0);
 888         lpmmioinfo16->wErrorRet = ret;
 889     } else {
 890         mmio.fccIOProc = 0;
 891         mmio.pIOProc = NULL;
 892         mmio.pchBuffer = NULL;
 893         mmio.cchBuffer = 0;
 894         ret = MMIO_Open(szFileName, &mmio, dwOpenFlags, FALSE);
 895     }
 896     return ret;
 897 }
 898
 899
 900 /**************************************************************************
 901  *                              mmioClose               [WINMM.114]
 902  */
 903 MMRESULT WINAPI mmioClose(HMMIO hmmio, UINT uFlags)
 904 {
 905     LPWINE_MMIO wm;
 906     MMRESULT    result;
 907
 908     TRACE("(%04X, %04X);\n", hmmio, uFlags);
 909
 910     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
 911         return MMSYSERR_INVALHANDLE;
 912
 913     if ((result = MMIO_Flush(wm, MMIO_EMPTYBUF)) != 0)
 914         return result;
 915
 916     result = MMIO_SendMessage(wm, MMIOM_CLOSE, uFlags, 0, MMIO_PROC_32A);
 917
 918     mmioSetBuffer(hmmio, NULL, 0, 0);
 919
 920     wm->ioProc->count--;
 921
 922     if (wm->bTmpIOProc)
 923         MMIO_InstallIOProc(wm->info.fccIOProc, NULL,
 924                            MMIO_REMOVEPROC, wm->ioProc->type);
 925
 926     MMIO_Destroy(wm);
 927
 928     return result;
 929 }
 930
 931 /**************************************************************************
 932  *                              mmioClose               [MMSYSTEM.1211]
 933  */
 934 MMRESULT16 WINAPI mmioClose16(HMMIO16 hmmio, UINT16 uFlags)
 935 {
 936     return mmioClose(hmmio, uFlags);
 937 }
 938
 939 /**************************************************************************
 940  *                              mmioRead                [WINMM.124]
 941  */
 942 LONG WINAPI mmioRead(HMMIO hmmio, HPSTR pch, LONG cch)
 943 {
 944     LPWINE_MMIO wm;
 945     LONG        count;
 946
 947     TRACE("(%04X, %p, %ld);\n", hmmio, pch, cch);
 948
 949     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
 950         return -1;
 951
 952     /* unbuffered case first */
 953     if (!wm->info.pchBuffer)
 954         return MMIO_SendMessage(wm, MMIOM_READ, (LPARAM)pch, cch, MMIO_PROC_32A);
 955
 956     /* first try from current buffer */
 957     if (wm->info.pchNext != wm->info.pchEndRead) {
 958         count = wm->info.pchEndRead - wm->info.pchNext;
 959         if (count > cch || count < 0) count = cch;
 960         memcpy(pch, wm->info.pchNext, count);
 961         wm->info.pchNext += count;
 962         pch += count;
 963         cch -= count;
 964     } else
 965         count = 0;
 966
 967     if (cch && (wm->info.fccIOProc != FOURCC_MEM)) {
 968         assert(wm->info.cchBuffer);
 969
 970         while (cch) {
 971             LONG size;
 972
 973             size = MMIO_GrabNextBuffer(wm, TRUE);
 974             if (size <= 0) break;
 975             if (size > cch) size = cch;
 976             memcpy(pch, wm->info.pchBuffer, size);
 977             wm->info.pchNext += size;
 978             pch += size;
 979             cch -= size;
 980             count += size;
 981         }
 982     }
 983
 984     TRACE("count=%ld\n", count);
 985     return count;
 986 }
 987
 988 /**************************************************************************
 989  *                              mmioRead                [MMSYSTEM.1212]
 990  */
 991 LONG WINAPI mmioRead16(HMMIO16 hmmio, HPSTR pch, LONG cch)
 992 {
 993     return mmioRead(hmmio, pch, cch);
 994 }
 995
 996 /**************************************************************************
 997  *                              mmioWrite               [WINMM.133]
 998  */
 999 LONG WINAPI mmioWrite(HMMIO hmmio, HPCSTR pch, LONG cch)
1000 {
1001     LPWINE_MMIO wm;
1002     LONG count,bytesW=0;
1003
1004     TRACE("(%04X, %p, %ld);\n", hmmio, pch, cch);
1005
1006     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1007         return -1;
1008
1009     if (wm->info.cchBuffer) {
1010         count = 0;
1011         while (cch) {
1012             if (wm->info.pchNext != wm->info.pchEndWrite) {
1013                 count = wm->info.pchEndWrite - wm->info.pchNext;
1014                 if (count > cch || count < 0) count = cch;
1015                 memcpy(wm->info.pchNext, pch, count);
1016                 wm->info.pchNext += count;
1017                 pch += count;
1018                 cch -= count;
1019                 bytesW+=count;
1020                 wm->info.dwFlags |= MMIO_DIRTY;
1021             } else
1022                 if (wm->info.fccIOProc == FOURCC_MEM) {
1023                     if (wm->info.adwInfo[0]) {
1024                         /* from where would we get the memory handle? */
1025                         FIXME("memory file expansion not implemented!\n");
1026                         break;
1027                     } else break;
1028                 }
1029
1030             if (wm->info.pchNext == wm->info.pchEndWrite) MMIO_Flush(wm, MMIO_EMPTYBUF);
1031             else break;
1032         }
1033     } else {
1034         bytesW = MMIO_SendMessage(wm, MMIOM_WRITE, (LPARAM)pch, cch, MMIO_PROC_32A);
1035         wm->info.lBufOffset = wm->info.lDiskOffset;
1036     }
1037
1038     TRACE("bytes written=%ld\n", bytesW);
1039     return bytesW;
1040 }
1041
1042 /**************************************************************************
1043  *                              mmioWrite               [MMSYSTEM.1213]
1044  */
1045 LONG WINAPI mmioWrite16(HMMIO16 hmmio, HPCSTR pch, LONG cch)
1046 {
1047     return mmioWrite(hmmio,pch,cch);
1048 }
1049
1050 /**************************************************************************
1051  *                              mmioSeek                [MMSYSTEM.1214]
1052  */
1053 LONG WINAPI mmioSeek(HMMIO hmmio, LONG lOffset, INT iOrigin)
1054 {
1055     LPWINE_MMIO wm;
1056     LONG        offset;
1057
1058     TRACE("(%04X, %08lX, %d);\n", hmmio, lOffset, iOrigin);
1059
1060     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1061         return MMSYSERR_INVALHANDLE;
1062
1063     /* not buffered, direct seek on file */
1064     if (!wm->info.pchBuffer)
1065         return MMIO_SendMessage(wm, MMIOM_SEEK, lOffset, iOrigin, MMIO_PROC_32A);
1066
1067     switch (iOrigin) {
1068     case SEEK_SET:
1069         offset = lOffset;
1070         break;
1071     case SEEK_CUR:
1072         offset = wm->info.lBufOffset + (wm->info.pchNext - wm->info.pchBuffer) + lOffset;
1073         break;
1074     case SEEK_END:
1075         if (wm->info.fccIOProc == FOURCC_MEM) {
1076             offset = wm->info.cchBuffer;
1077         } else {
1078             assert(MMIO_SendMessage(wm, MMIOM_SEEK, 0, SEEK_CUR, MMIO_PROC_32A) == wm->info.lDiskOffset);
1079             offset = MMIO_SendMessage(wm, MMIOM_SEEK, 0, SEEK_END, MMIO_PROC_32A);
1080             MMIO_SendMessage(wm, MMIOM_SEEK, wm->info.lDiskOffset, SEEK_SET, MMIO_PROC_32A);
1081         }
1082         offset -= lOffset;
1083         break;
1084     default:
1085         return -1;
1086     }
1087
1088     /* stay in same buffer ? */
1089     /* some memory mapped buffers are defined with -1 as a size */
1090     if ((wm->info.cchBuffer > 0) &&
1091         ((offset < wm->info.lBufOffset) ||
1092          (offset >= wm->info.lBufOffset + wm->info.cchBuffer) ||
1093          !wm->bBufferLoaded)) {
1094
1095         /* condition to change buffer */
1096         if ((wm->info.fccIOProc == FOURCC_MEM) ||
1097             MMIO_Flush(wm, MMIO_EMPTYBUF) ||
1098             /* this also sets the wm->info.lDiskOffset field */
1099             MMIO_SendMessage(wm, MMIOM_SEEK,
1100                              (offset / wm->info.cchBuffer) * wm->info.cchBuffer,
1101                              SEEK_SET, MMIO_PROC_32A) == -1)
1102             return -1;
1103         MMIO_GrabNextBuffer(wm, TRUE);
1104     }
1105
1106     wm->info.pchNext = wm->info.pchBuffer + (offset - wm->info.lBufOffset);
1107
1108     TRACE("=> %ld\n", offset);
1109     return offset;
1110 }
1111
1112 /**************************************************************************
1113  *                              mmioSeek                [MMSYSTEM.1214]
1114  */
1115 LONG WINAPI mmioSeek16(HMMIO16 hmmio, LONG lOffset, INT16 iOrigin)
1116 {
1117     return mmioSeek(hmmio, lOffset, iOrigin);
1118 }
1119
1120 /**************************************************************************
1121  *                              mmioGetInfo             [MMSYSTEM.1215]
1122  */
1123 UINT16 WINAPI mmioGetInfo16(HMMIO16 hmmio, MMIOINFO16* lpmmioinfo, UINT16 uFlags)
1124 {
1125     LPWINE_MMIO wm;
1126
1127     TRACE("mmioGetInfo\n");
1128
1129     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1130         return MMSYSERR_INVALHANDLE;
1131
1132     if (!wm->buffer16)
1133         return MMSYSERR_ERROR;
1134
1135     lpmmioinfo->dwFlags     = wm->info.dwFlags;
1136     lpmmioinfo->fccIOProc   = wm->info.fccIOProc;
1137     lpmmioinfo->pIOProc     = (LPMMIOPROC16)wm->info.pIOProc;
1138     lpmmioinfo->wErrorRet   = wm->info.wErrorRet;
1139     lpmmioinfo->hTask       = wm->info.hTask;
1140     lpmmioinfo->cchBuffer   = wm->info.cchBuffer;
1141     lpmmioinfo->pchBuffer   = (void*)wm->buffer16;
1142     lpmmioinfo->pchNext     = (void*)(wm->buffer16 + (wm->info.pchNext - wm->info.pchBuffer));
1143     lpmmioinfo->pchEndRead  = (void*)(wm->buffer16 + (wm->info.pchEndRead - wm->info.pchBuffer));
1144     lpmmioinfo->pchEndWrite = (void*)(wm->buffer16 + (wm->info.pchEndWrite - wm->info.pchBuffer));
1145     lpmmioinfo->lBufOffset  = wm->info.lBufOffset;
1146     lpmmioinfo->lDiskOffset = wm->info.lDiskOffset;
1147     lpmmioinfo->adwInfo[0]  = wm->info.adwInfo[0];
1148     lpmmioinfo->adwInfo[1]  = wm->info.adwInfo[1];
1149     lpmmioinfo->adwInfo[2]  = wm->info.adwInfo[2];
1150     lpmmioinfo->adwInfo[3]  = wm->info.adwInfo[3];
1151     lpmmioinfo->dwReserved1 = 0;
1152     lpmmioinfo->dwReserved2 = 0;
1153     lpmmioinfo->hmmio = wm->info.hmmio;
1154
1155     return 0;
1156 }
1157
1158 /**************************************************************************
1159  *                              mmioGetInfo             [WINMM.118]
1160  */
1161 UINT WINAPI mmioGetInfo(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags)
1162 {
1163     LPWINE_MMIO         wm;
1164
1165     TRACE("(0x%04x,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags);
1166
1167     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1168         return MMSYSERR_INVALHANDLE;
1169
1170     memcpy(lpmmioinfo, &wm->info, sizeof(MMIOINFO));
1171
1172     return 0;
1173 }
1174
1175 /**************************************************************************
1176  *                              mmioSetInfo16           [MMSYSTEM.1216]
1177  */
1178 UINT16 WINAPI mmioSetInfo16(HMMIO16 hmmio, const MMIOINFO16* lpmmioinfo, UINT16 uFlags)
1179 {
1180     LPWINE_MMIO         wm;
1181
1182     TRACE("mmioSetInfo\n");
1183
1184     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1185         return MMSYSERR_INVALHANDLE;
1186
1187     /* check if seg and lin buffers are the same */
1188     if (wm->info.cchBuffer != lpmmioinfo->cchBuffer ||
1189         wm->info.pchBuffer != PTR_SEG_TO_LIN((void*)wm->buffer16))
1190         return MMSYSERR_INVALPARAM;
1191
1192     /* check pointers coherence */
1193     if (lpmmioinfo->pchNext < lpmmioinfo->pchBuffer ||
1194         lpmmioinfo->pchNext > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer ||
1195         lpmmioinfo->pchEndRead < lpmmioinfo->pchBuffer ||
1196         lpmmioinfo->pchEndRead > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer ||
1197         lpmmioinfo->pchEndWrite < lpmmioinfo->pchBuffer ||
1198         lpmmioinfo->pchEndWrite > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer)
1199         return MMSYSERR_INVALPARAM;
1200
1201     wm->info.pchNext     = wm->info.pchBuffer + (lpmmioinfo->pchNext     - lpmmioinfo->pchBuffer);
1202     wm->info.pchEndRead  = wm->info.pchBuffer + (lpmmioinfo->pchEndRead  - lpmmioinfo->pchBuffer);
1203     wm->info.pchEndWrite = wm->info.pchBuffer + (lpmmioinfo->pchEndWrite - lpmmioinfo->pchBuffer);
1204
1205     return 0;
1206 }
1207
1208 /**************************************************************************
1209  *                              mmioSetInfo             [WINMM.130]
1210  */
1211 UINT WINAPI mmioSetInfo(HMMIO hmmio, const MMIOINFO* lpmmioinfo, UINT uFlags)
1212 {
1213     LPWINE_MMIO         wm;
1214
1215     TRACE("mmioSetInfo\n");
1216
1217     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1218         return MMSYSERR_INVALHANDLE;
1219
1220     /* check pointers coherence */
1221     if (lpmmioinfo->pchNext < wm->info.pchBuffer ||
1222         lpmmioinfo->pchNext > wm->info.pchBuffer + wm->info.cchBuffer ||
1223         lpmmioinfo->pchEndRead < wm->info.pchBuffer ||
1224         lpmmioinfo->pchEndRead > wm->info.pchBuffer + wm->info.cchBuffer ||
1225         lpmmioinfo->pchEndWrite < wm->info.pchBuffer ||
1226         lpmmioinfo->pchEndWrite > wm->info.pchBuffer + wm->info.cchBuffer)
1227         return MMSYSERR_INVALPARAM;
1228
1229     wm->info.pchNext = lpmmioinfo->pchNext;
1230     wm->info.pchEndRead = lpmmioinfo->pchEndRead;
1231
1232     return 0;
1233 }
1234
1235 /**************************************************************************
1236 *                               mmioSetBuffer           [WINMM.129]
1237 */
1238 UINT WINAPI mmioSetBuffer(HMMIO hmmio, LPSTR pchBuffer, LONG cchBuffer, UINT uFlags)
1239 {
1240     LPWINE_MMIO         wm;
1241
1242     TRACE("(hmmio=%04x, pchBuf=%p, cchBuf=%ld, uFlags=%#08x)\n",
1243           hmmio, pchBuffer, cchBuffer, uFlags);
1244
1245     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1246         return MMSYSERR_INVALHANDLE;
1247
1248     return MMIO_SetBuffer(wm, pchBuffer, cchBuffer, uFlags, TRUE);
1249 }
1250
1251 /**************************************************************************
1252  *                              mmioSetBuffer           [MMSYSTEM.1217]
1253  */
1254 UINT16 WINAPI mmioSetBuffer16(HMMIO16 hmmio, LPSTR segpchBuffer,
1255                               LONG cchBuffer, UINT16 uFlags)
1256 {
1257     LPWINE_MMIO         wm;
1258
1259     TRACE("(hmmio=%04x, segpchBuf=%p, cchBuf=%ld, uFlags=%#08x)\n",
1260           hmmio, segpchBuffer, cchBuffer, uFlags);
1261
1262     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1263         return MMSYSERR_INVALHANDLE;
1264
1265     return MMIO_SetBuffer(wm, segpchBuffer, cchBuffer, uFlags, FALSE);
1266 }
1267
1268 /**************************************************************************
1269  *                              mmioFlush               [WINMM.117]
1270  */
1271 UINT WINAPI mmioFlush(HMMIO hmmio, UINT uFlags)
1272 {
1273     LPWINE_MMIO         wm;
1274
1275     TRACE("(%04X, %04X)\n", hmmio, uFlags);
1276
1277     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1278         return MMSYSERR_INVALHANDLE;
1279
1280     return MMIO_Flush(wm, uFlags);
1281 }
1282
1283 /**************************************************************************
1284  *                              mmioFlush               [MMSYSTEM.1218]
1285  */
1286 UINT16 WINAPI mmioFlush16(HMMIO16 hmmio, UINT16 uFlags)
1287 {
1288     return mmioFlush(hmmio, uFlags);
1289 }
1290
1291 /**************************************************************************
1292  *                              mmioAdvance             [MMSYSTEM.1219]
1293  */
1294 UINT WINAPI mmioAdvance(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags)
1295 {
1296     LPWINE_MMIO         wm;
1297
1298     TRACE("hmmio=%04X, lpmmioinfo=%p, uFlags=%04X\n", hmmio, lpmmioinfo, uFlags);
1299
1300     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1301         return MMSYSERR_INVALHANDLE;
1302
1303     if (!wm->info.cchBuffer)
1304         return MMIOERR_UNBUFFERED;
1305
1306     if (uFlags != MMIO_READ && uFlags != MMIO_WRITE)
1307         return MMSYSERR_INVALPARAM;
1308
1309     if (MMIO_Flush(wm, MMIO_EMPTYBUF))
1310         return MMIOERR_CANNOTWRITE;
1311
1312     MMIO_GrabNextBuffer(wm, uFlags == MMIO_READ);
1313
1314     lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
1315     lpmmioinfo->pchEndRead  = lpmmioinfo->pchBuffer +
1316         (wm->info.pchEndRead - wm->info.pchBuffer);
1317     lpmmioinfo->pchEndWrite = lpmmioinfo->pchBuffer +
1318         (wm->info.pchEndWrite - wm->info.pchBuffer);
1319     lpmmioinfo->lDiskOffset = wm->info.lDiskOffset;
1320     lpmmioinfo->lBufOffset = wm->info.lBufOffset;
1321     return 0;
1322 }
1323
1324 /***********************************************************************
1325  *                              mmioAdvance             [MMSYSTEM.1219]
1326  */
1327 UINT16 WINAPI mmioAdvance16(HMMIO16 hmmio, MMIOINFO16* lpmmioinfo, UINT16 uFlags)
1328 {
1329     LPWINE_MMIO         wm;
1330
1331     TRACE("mmioAdvance\n");
1332
1333     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1334         return MMSYSERR_INVALHANDLE;
1335
1336     if (!wm->info.cchBuffer)
1337         return MMIOERR_UNBUFFERED;
1338
1339     if (uFlags != MMIO_READ && uFlags != MMIO_WRITE)
1340         return MMSYSERR_INVALPARAM;
1341
1342     if (MMIO_Flush(wm, MMIO_EMPTYBUF))
1343         return MMIOERR_CANNOTWRITE;
1344
1345     MMIO_GrabNextBuffer(wm, uFlags == MMIO_READ);
1346
1347     lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
1348     lpmmioinfo->pchEndRead  = lpmmioinfo->pchBuffer +
1349         (wm->info.pchEndRead - wm->info.pchBuffer);
1350     lpmmioinfo->pchEndWrite = lpmmioinfo->pchBuffer +
1351         (wm->info.pchEndWrite - wm->info.pchBuffer);
1352     lpmmioinfo->lDiskOffset = wm->info.lDiskOffset;
1353     lpmmioinfo->lBufOffset = wm->info.lBufOffset;
1354
1355     return 0;
1356 }
1357
1358 /**************************************************************************
1359  *                              mmioStringToFOURCCA     [WINMM.131]
1360  */
1361 FOURCC WINAPI mmioStringToFOURCCA(LPCSTR sz, UINT uFlags)
1362 {
1363     CHAR cc[4];
1364     int i = 0;
1365
1366     for (i = 0; i < 4 && sz[i]; i++) {
1367         if (uFlags & MMIO_TOUPPER) {
1368             cc[i] = toupper(sz[i]);
1369         } else {
1370             cc[i] = sz[i];
1371         }
1372     }
1373
1374     /* Pad with spaces */
1375     while (i < 4) {
1376         cc[i] = ' ';
1377         i++;
1378     }
1379
1380     TRACE("Got %c%c%c%c\n",cc[0],cc[1],cc[2],cc[3]);
1381     return mmioFOURCC(cc[0],cc[1],cc[2],cc[3]);
1382 }
1383
1384 /**************************************************************************
1385  *                              mmioStringToFOURCCW     [WINMM.132]
1386  */
1387 FOURCC WINAPI mmioStringToFOURCCW(LPCWSTR sz, UINT uFlags)
1388 {
1389     LPSTR       szA = HEAP_strdupWtoA(GetProcessHeap(),0,sz);
1390     FOURCC      ret = mmioStringToFOURCCA(szA,uFlags);
1391
1392     HeapFree(GetProcessHeap(),0,szA);
1393     return ret;
1394 }
1395
1396 /**************************************************************************
1397  *                              mmioStringToFOURCC      [MMSYSTEM.1220]
1398  */
1399 FOURCC WINAPI mmioStringToFOURCC16(LPCSTR sz, UINT16 uFlags)
1400 {
1401     return mmioStringToFOURCCA(sz, uFlags);
1402 }
1403
1404 /**************************************************************************
1405  *              mmioInstallIOProc16    [MMSYSTEM.1221]
1406  */
1407 LPMMIOPROC16 WINAPI mmioInstallIOProc16(FOURCC fccIOProc, LPMMIOPROC16 pIOProc,
1408                                         DWORD dwFlags)
1409 {
1410     return (LPMMIOPROC16)MMIO_InstallIOProc(fccIOProc, (LPMMIOPROC)pIOProc,
1411                                             dwFlags, MMIO_PROC_16);
1412 }
1413
1414 /**************************************************************************
1415  *                              mmioInstallIOProcA         [WINMM.120]
1416  */
1417 LPMMIOPROC WINAPI mmioInstallIOProcA(FOURCC fccIOProc,
1418                                      LPMMIOPROC pIOProc, DWORD dwFlags)
1419 {
1420     return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32A);
1421 }
1422
1423 /**************************************************************************
1424  *                              mmioInstallIOProcW         [WINMM.]
1425  */
1426 LPMMIOPROC WINAPI mmioInstallIOProcW(FOURCC fccIOProc,
1427                                      LPMMIOPROC pIOProc, DWORD dwFlags)
1428 {
1429     return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32W);
1430 }
1431
1432 /**************************************************************************
1433  *                              mmioSendMessage16       [MMSYSTEM.1222]
1434  */
1435 LRESULT WINAPI mmioSendMessage16(HMMIO16 hmmio, UINT16 uMessage,
1436                                  LPARAM lParam1, LPARAM lParam2)
1437 {
1438     LPWINE_MMIO         wm;
1439
1440     TRACE("(%04X, %u, %ld, %ld)\n", hmmio, uMessage, lParam1, lParam2);
1441
1442     if (uMessage < MMIOM_USER)
1443         return MMSYSERR_INVALPARAM;
1444
1445     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1446         return MMSYSERR_INVALHANDLE;
1447
1448     return MMIO_SendMessage(wm, uMessage, lParam1, lParam2, MMIO_PROC_16);
1449 }
1450
1451 /**************************************************************************
1452  *                              mmioSendMessage         [WINMM.]
1453  */
1454 LRESULT WINAPI mmioSendMessage(HMMIO hmmio, UINT uMessage,
1455                                LPARAM lParam1, LPARAM lParam2)
1456 {
1457     LPWINE_MMIO         wm;
1458
1459     TRACE("(%04X, %u, %ld, %ld)\n", hmmio, uMessage, lParam1, lParam2);
1460
1461     if (uMessage < MMIOM_USER)
1462         return MMSYSERR_INVALPARAM;
1463
1464     if ((wm = MMIO_Get(NULL, hmmio)) == NULL)
1465         return MMSYSERR_INVALHANDLE;
1466
1467     return MMIO_SendMessage(wm, uMessage, lParam1, lParam2, MMIO_PROC_32A);
1468 }
1469
1470 /**************************************************************************
1471  *                              mmioDescend             [MMSYSTEM.1223]
1472  */
1473 UINT WINAPI mmioDescend(HMMIO hmmio, LPMMCKINFO lpck,
1474                         const MMCKINFO* lpckParent, UINT uFlags)
1475 {
1476     DWORD               dwOldPos;
1477     FOURCC              srchCkId;
1478     FOURCC              srchType;
1479
1480
1481     TRACE("(%04X, %p, %p, %04X);\n", hmmio, lpck, lpckParent, uFlags);
1482
1483     if (lpck == NULL)
1484         return MMSYSERR_INVALPARAM;
1485
1486     dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1487     TRACE("dwOldPos=%ld\n", dwOldPos);
1488
1489     if (lpckParent != NULL) {
1490         TRACE("seek inside parent at %ld !\n", lpckParent->dwDataOffset);
1491         /* EPP: was dwOldPos = mmioSeek(hmmio,lpckParent->dwDataOffset,SEEK_SET); */
1492         if (dwOldPos < lpckParent->dwDataOffset ||
1493             dwOldPos >= lpckParent->dwDataOffset + lpckParent->cksize) {
1494             WARN("outside parent chunk\n");
1495             return MMIOERR_CHUNKNOTFOUND;
1496         }
1497     }
1498
1499     /* The SDK docu says 'ckid' is used for all cases. Real World
1500      * examples disagree -Marcus,990216.
1501      */
1502
1503     srchType = 0;
1504     /* find_chunk looks for 'ckid' */
1505     if (uFlags & MMIO_FINDCHUNK)
1506         srchCkId = lpck->ckid;
1507     /* find_riff and find_list look for 'fccType' */
1508     if (uFlags & MMIO_FINDLIST) {
1509         srchCkId = FOURCC_LIST;
1510         srchType = lpck->fccType;
1511     }
1512     if (uFlags & MMIO_FINDRIFF) {
1513         srchCkId = FOURCC_RIFF;
1514         srchType = lpck->fccType;
1515     }
1516
1517     if (uFlags & (MMIO_FINDCHUNK|MMIO_FINDLIST|MMIO_FINDRIFF)) {
1518         TRACE("searching for %.4s.%.4s\n",
1519               (LPSTR)&srchCkId,
1520               srchType?(LPSTR)&srchType:"any ");
1521
1522         while (TRUE) {
1523             LONG ix;
1524
1525             ix = mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD));
1526             if (ix < 2*sizeof(DWORD)) {
1527                 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1528                 WARN("return ChunkNotFound\n");
1529                 return MMIOERR_CHUNKNOTFOUND;
1530             }
1531             lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
1532             if (ix < lpck->dwDataOffset - dwOldPos) {
1533                 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1534                 WARN("return ChunkNotFound\n");
1535                 return MMIOERR_CHUNKNOTFOUND;
1536             }
1537             TRACE("ckid=%.4s fcc=%.4s cksize=%08lX !\n",
1538                   (LPSTR)&lpck->ckid,
1539                   srchType?(LPSTR)&lpck->fccType:"<na>",
1540                   lpck->cksize);
1541             if ((srchCkId == lpck->ckid) &&
1542                 (!srchType || (srchType == lpck->fccType))
1543                 )
1544                 break;
1545
1546             dwOldPos = lpck->dwDataOffset + ((lpck->cksize + 1) & ~1);
1547             mmioSeek(hmmio, dwOldPos, SEEK_SET);
1548         }
1549     } else {
1550         /* FIXME: unverified, does it do this? */
1551         /* NB: This part is used by WAVE_mciOpen, among others */
1552         if (mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD)) < 3 * sizeof(DWORD)) {
1553             mmioSeek(hmmio, dwOldPos, SEEK_SET);
1554             WARN("return ChunkNotFound 2nd\n");
1555             return MMIOERR_CHUNKNOTFOUND;
1556         }
1557         lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
1558     }
1559     lpck->dwFlags = 0;
1560     /* If we were looking for RIFF/LIST chunks, the final file position
1561      * is after the chunkid. If we were just looking for the chunk
1562      * it is after the cksize. So add 4 in RIFF/LIST case.
1563      */
1564     if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
1565         mmioSeek(hmmio, lpck->dwDataOffset + sizeof(DWORD), SEEK_SET);
1566     else
1567         mmioSeek(hmmio, lpck->dwDataOffset, SEEK_SET);
1568     TRACE("lpck: ckid=%.4s, cksize=%ld, dwDataOffset=%ld fccType=%08lX (%.4s)!\n",
1569           (LPSTR)&lpck->ckid, lpck->cksize, lpck->dwDataOffset,
1570           lpck->fccType, srchType?(LPSTR)&lpck->fccType:"");
1571     return 0;
1572 }
1573
1574 /**************************************************************************
1575  *                              mmioDescend16           [MMSYSTEM.1223]
1576  */
1577 UINT16 WINAPI mmioDescend16(HMMIO16 hmmio, LPMMCKINFO lpck,
1578                             const MMCKINFO* lpckParent, UINT16 uFlags)
1579 {
1580     return mmioDescend(hmmio, lpck, lpckParent, uFlags);
1581 }
1582
1583 /**************************************************************************
1584  *                              mmioAscend              [WINMM.113]
1585  */
1586 UINT WINAPI mmioAscend(HMMIO hmmio, LPMMCKINFO lpck, UINT uFlags)
1587 {
1588     TRACE("(%04X, %p, %04X);\n", hmmio, lpck, uFlags);
1589
1590     if (lpck->dwFlags & MMIO_DIRTY) {
1591         DWORD   dwOldPos, dwNewSize, dwSizePos;
1592
1593         TRACE("chunk is marked MMIO_DIRTY, correcting chunk size\n");
1594         dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1595         TRACE("dwOldPos=%ld\n", dwOldPos);
1596         dwNewSize = dwOldPos - lpck->dwDataOffset;
1597         if (dwNewSize != lpck->cksize) {
1598             TRACE("dwNewSize=%ld\n", dwNewSize);
1599             lpck->cksize = dwNewSize;
1600
1601             dwSizePos = lpck->dwDataOffset - sizeof(DWORD);
1602             TRACE("dwSizePos=%ld\n", dwSizePos);
1603
1604             mmioSeek(hmmio, dwSizePos, SEEK_SET);
1605             mmioWrite(hmmio, (LPSTR)&dwNewSize, sizeof(DWORD));
1606         }
1607     }
1608
1609     mmioSeek(hmmio, lpck->dwDataOffset + ((lpck->cksize + 1) & ~1), SEEK_SET);
1610
1611     return 0;
1612 }
1613
1614 /**************************************************************************
1615  *                              mmioAscend              [MMSYSTEM.1224]
1616  */
1617 UINT16 WINAPI mmioAscend16(HMMIO16 hmmio, MMCKINFO* lpck, UINT16 uFlags)
1618 {
1619     return mmioAscend(hmmio,lpck,uFlags);
1620 }
1621
1622 /**************************************************************************
1623  *                              mmioCreateChunk         [MMSYSTEM.1225]
1624  */
1625 UINT16 WINAPI mmioCreateChunk16(HMMIO16 hmmio, MMCKINFO* lpck, UINT16 uFlags)
1626 {
1627     DWORD       dwOldPos;
1628     LONG        size;
1629     LONG        ix;
1630
1631     TRACE("(%04X, %p, %04X);\n", hmmio, lpck, uFlags);
1632
1633     dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1634     TRACE("dwOldPos=%ld\n", dwOldPos);
1635
1636     if (uFlags == MMIO_CREATELIST)
1637         lpck->ckid = FOURCC_LIST;
1638     else if (uFlags == MMIO_CREATERIFF)
1639         lpck->ckid = FOURCC_RIFF;
1640
1641     TRACE("ckid=%08lX\n", lpck->ckid);
1642
1643     size = 2 * sizeof(DWORD);
1644     lpck->dwDataOffset = dwOldPos + size;
1645
1646     if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
1647         size += sizeof(DWORD);
1648     lpck->dwFlags = MMIO_DIRTY;
1649
1650     ix = mmioWrite(hmmio, (LPSTR)lpck, size);
1651     TRACE("after mmioWrite ix = %ld req = %ld, errno = %d\n",ix, size, errno);
1652     if (ix < size) {
1653         mmioSeek(hmmio, dwOldPos, SEEK_SET);
1654         WARN("return CannotWrite\n");
1655         return MMIOERR_CANNOTWRITE;
1656     }
1657
1658     return 0;
1659 }
1660
1661 /**************************************************************************
1662  *                      mmioCreateChunk                         [WINMM.115]
1663  */
1664 UINT WINAPI mmioCreateChunk(HMMIO hmmio, MMCKINFO* lpck, UINT uFlags)
1665 {
1666     return mmioCreateChunk16(hmmio, lpck, uFlags);
1667 }
1668
1669 /**************************************************************************
1670  *                              mmioRename              [MMSYSTEM.1226]
1671  */
1672 UINT16 WINAPI mmioRename16(LPCSTR szFileName, LPCSTR szNewFileName,
1673                            MMIOINFO16* lpmmioinfo, DWORD dwRenameFlags)
1674 {
1675     UINT16              result = MMSYSERR_ERROR;
1676     LPMMIOPROC16        ioProc;
1677
1678     TRACE("('%s', '%s', %p, %08lX);\n",
1679           szFileName, szNewFileName, lpmmioinfo, dwRenameFlags);
1680
1681     /* If both params are NULL, then parse the file name */
1682     if (lpmmioinfo && lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL)
1683         lpmmioinfo->fccIOProc = MMIO_ParseExt(szFileName);
1684
1685     /* Handle any unhandled/error case from above. Assume DOS file */
1686     if (!lpmmioinfo || (lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL))
1687         ioProc = (LPMMIOPROC16)mmioDosIOProc;
1688     /* if just the four character code is present, look up IO proc */
1689     else if (lpmmioinfo->pIOProc == NULL)
1690         ioProc = mmioInstallIOProc16(lpmmioinfo->fccIOProc, NULL, MMIO_FINDPROC);
1691     else
1692         ioProc = lpmmioinfo->pIOProc;
1693
1694     /* FIXME: ioProc is likely a segmented address, thus needing a
1695      * thunk somewhere. The main issue is that Wine's current thunking
1696      * 32 to 16 only supports pascal calling convention
1697      */
1698     if (ioProc)
1699         result = (ioProc)(0, MMIOM_RENAME,
1700                           (LPARAM)szFileName, (LPARAM)szNewFileName);
1701
1702     return result;
1703 }
1704
1705 /**************************************************************************
1706  *                              mmioRenameA                     [WINMM.125]
1707  */
1708 UINT WINAPI mmioRenameA(LPCSTR szFileName, LPCSTR szNewFileName,
1709                         MMIOINFO* lpmmioinfo, DWORD dwRenameFlags)
1710 {
1711     UINT        result = MMSYSERR_ERROR;
1712     LPMMIOPROC  ioProc;
1713
1714     TRACE("('%s', '%s', %p, %08lX);\n",
1715           szFileName, szNewFileName, lpmmioinfo, dwRenameFlags);
1716
1717     /* If both params are NULL, then parse the file name */
1718     if (lpmmioinfo && lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL)
1719         lpmmioinfo->fccIOProc = MMIO_ParseExt(szFileName);
1720
1721     /* Handle any unhandled/error case from above. Assume DOS file */
1722     if (!lpmmioinfo || (lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL))
1723         ioProc = (LPMMIOPROC)mmioDosIOProc;
1724     /* if just the four character code is present, look up IO proc */
1725     else if (lpmmioinfo->pIOProc == NULL)
1726         ioProc = MMIO_InstallIOProc(lpmmioinfo->fccIOProc, NULL,
1727                                     MMIO_FINDPROC, MMIO_PROC_32A);
1728     else /* use relevant ioProc */
1729         ioProc = lpmmioinfo->pIOProc;
1730
1731     if (ioProc)
1732         result = (ioProc)(0, MMIOM_RENAME,
1733                           (LPARAM)szFileName, (LPARAM)szNewFileName);
1734
1735     return result;
1736 }
1737
1738 /**************************************************************************
1739  *                              mmioRenameW                     [WINMM.126]
1740  */
1741 UINT WINAPI mmioRenameW(LPCWSTR szFileName, LPCWSTR szNewFileName,
1742                         MMIOINFO* lpmmioinfo, DWORD dwRenameFlags)
1743 {
1744     LPSTR       szFn = HEAP_strdupWtoA(GetProcessHeap(), 0, szFileName);
1745     LPSTR       sznFn = HEAP_strdupWtoA(GetProcessHeap(), 0, szNewFileName);
1746     UINT        ret = mmioRenameA(szFn, sznFn, lpmmioinfo, dwRenameFlags);
1747
1748     HeapFree(GetProcessHeap(),0,szFn);
1749     HeapFree(GetProcessHeap(),0,sznFn);
1750     return ret;
1751 }