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[reactos.git] / reactos / lib / winmm / mmio.c
1 /*
2 * MMIO functions
3 *
4 * Copyright 1998 Andrew Taylor
5 * Copyright 1998 Ove Kåven
6 * Copyright 2000,2002 Eric Pouech
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 /* Still to be done:
24 * + correct handling of global/local IOProcs (and temporary IOProcs)
25 * + mode of mmio objects is not used (read vs write vs readwrite)
26 * + thread safeness
27 * + 32 A <=> W message mapping
28 */
29
30
31 #include <ctype.h>
32 #include <stdarg.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <errno.h>
36 #include <assert.h>
37
38 #include "windef.h"
39 #include "winbase.h"
40 #include "winnls.h"
41 #include "mmsystem.h"
42 #include "winemm.h"
43
44 #include "wine/debug.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(mmio);
47
48 LRESULT (*pFnMmioCallback16)(DWORD,LPMMIOINFO,UINT,LPARAM,LPARAM) /* = NULL */;
49
50 /**************************************************************************
51 * mmioDosIOProc [internal]
52 */
53 static LRESULT CALLBACK mmioDosIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage,
54 LPARAM lParam1, LPARAM lParam2)
55 {
56 LRESULT ret = MMSYSERR_NOERROR;
57
58 TRACE("(%p, %X, 0x%lx, 0x%lx);\n", lpmmioinfo, uMessage, lParam1, lParam2);
59
60 switch (uMessage) {
61 case MMIOM_OPEN:
62 {
63 /* Parameters:
64 * lParam1 = szFileName parameter from mmioOpen
65 * lParam2 = reserved
66 * Returns: zero on success, error code on error
67 * NOTE: lDiskOffset automatically set to zero
68 */
69 LPCSTR szFileName = (LPCSTR)lParam1;
70
71 if (lpmmioinfo->dwFlags & MMIO_GETTEMP) {
72 FIXME("MMIO_GETTEMP not implemented\n");
73 return MMIOERR_CANNOTOPEN;
74 }
75
76 /* if filename NULL, assume open file handle in adwInfo[0] */
77 if (szFileName) {
78 OFSTRUCT ofs;
79 lpmmioinfo->adwInfo[0] = (DWORD)OpenFile(szFileName, &ofs, lpmmioinfo->dwFlags & 0xFFFF);
80 }
81 if (lpmmioinfo->adwInfo[0] == (DWORD)HFILE_ERROR)
82 ret = MMIOERR_CANNOTOPEN;
83 }
84 break;
85
86 case MMIOM_CLOSE:
87 /* Parameters:
88 * lParam1 = wFlags parameter from mmioClose
89 * lParam2 = unused
90 * Returns: zero on success, error code on error
91 */
92 if (!(lParam1 & MMIO_FHOPEN))
93 _lclose((HFILE)lpmmioinfo->adwInfo[0]);
94 break;
95
96 case MMIOM_READ:
97 /* Parameters:
98 * lParam1 = huge pointer to read buffer
99 * lParam2 = number of bytes to read
100 * Returns: number of bytes read, 0 for EOF, -1 for error (error code
101 * in wErrorRet)
102 */
103 ret = _lread((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2);
104 if (ret != -1)
105 lpmmioinfo->lDiskOffset += ret;
106
107 break;
108
109 case MMIOM_WRITE:
110 case MMIOM_WRITEFLUSH:
111 /* no internal buffering, so WRITEFLUSH handled same as WRITE */
112
113 /* Parameters:
114 * lParam1 = huge pointer to write buffer
115 * lParam2 = number of bytes to write
116 * Returns: number of bytes written, -1 for error (error code in
117 * wErrorRet)
118 */
119 ret = _hwrite((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2);
120 if (ret != -1)
121 lpmmioinfo->lDiskOffset += ret;
122 break;
123
124 case MMIOM_SEEK:
125 /* Parameters:
126 * lParam1 = new position
127 * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END)
128 * Returns: new file postion, -1 on error
129 */
130 ret = _llseek((HFILE)lpmmioinfo->adwInfo[0], (LONG)lParam1, (LONG)lParam2);
131 if (ret != -1)
132 lpmmioinfo->lDiskOffset = ret;
133 return ret;
134
135 case MMIOM_RENAME:
136 /* Parameters:
137 * lParam1 = old name
138 * lParam2 = new name
139 * Returns: zero on success, non-zero on failure
140 */
141 if (!MoveFileA((const char*)lParam1, (const char*)lParam2))
142 ret = MMIOERR_FILENOTFOUND;
143 break;
144
145 default:
146 FIXME("unexpected message %u\n", uMessage);
147 return 0;
148 }
149
150 return ret;
151 }
152
153 /**************************************************************************
154 * mmioMemIOProc [internal]
155 */
156 static LRESULT CALLBACK mmioMemIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage,
157 LPARAM lParam1, LPARAM lParam2)
158 {
159 TRACE("(%p,0x%04x,0x%08lx,0x%08lx)\n", lpmmioinfo, uMessage, lParam1, lParam2);
160
161 switch (uMessage) {
162
163 case MMIOM_OPEN:
164 /* Parameters:
165 * lParam1 = filename (must be NULL)
166 * lParam2 = reserved
167 * Returns: zero on success, error code on error
168 * NOTE: lDiskOffset automatically set to zero
169 */
170 /* FIXME: io proc shouldn't change it */
171 if (!(lpmmioinfo->dwFlags & MMIO_CREATE))
172 lpmmioinfo->pchEndRead = lpmmioinfo->pchEndWrite;
173 lpmmioinfo->adwInfo[0] = HFILE_ERROR;
174 return 0;
175
176 case MMIOM_CLOSE:
177 /* Parameters:
178 * lParam1 = wFlags parameter from mmioClose
179 * lParam2 = unused
180 * Returns: zero on success, error code on error
181 */
182 return 0;
183
184 case MMIOM_READ:
185 /* Parameters:
186 * lParam1 = huge pointer to read buffer
187 * lParam2 = number of bytes to read
188 * Returns: number of bytes read, 0 for EOF, -1 for error (error code
189 * in wErrorRet)
190 * NOTE: lDiskOffset should be updated
191 */
192 FIXME("MMIOM_READ on memory files should not occur, buffer may be lost!\n");
193 return 0;
194
195 case MMIOM_WRITE:
196 case MMIOM_WRITEFLUSH:
197 /* no internal buffering, so WRITEFLUSH handled same as WRITE */
198
199 /* Parameters:
200 * lParam1 = huge pointer to write buffer
201 * lParam2 = number of bytes to write
202 * Returns: number of bytes written, -1 for error (error code in
203 * wErrorRet)
204 * NOTE: lDiskOffset should be updated
205 */
206 FIXME("MMIOM_WRITE on memory files should not occur, buffer may be lost!\n");
207 return 0;
208
209 case MMIOM_SEEK:
210 /* Parameters:
211 * lParam1 = new position
212 * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END)
213 * Returns: new file postion, -1 on error
214 * NOTE: lDiskOffset should be updated
215 */
216 FIXME("MMIOM_SEEK on memory files should not occur, buffer may be lost!\n");
217 return -1;
218
219 default:
220 FIXME("unexpected message %u\n", uMessage);
221 return 0;
222 }
223 }
224
225 /* This array will be the entire list for most apps
226 * Note that temporary ioProcs will be stored with a 0 fourCC code
227 */
228
229 static struct IOProcList defaultProcs[] = {
230 {&defaultProcs[1], FOURCC_DOS, (LPMMIOPROC)mmioDosIOProc, MMIO_PROC_32A, 0},
231 {NULL, FOURCC_MEM, (LPMMIOPROC)mmioMemIOProc, MMIO_PROC_32A, 0},
232 };
233
234 static struct IOProcList* pIOProcListAnchor = &defaultProcs[0];
235
236 /****************************************************************
237 * MMIO_FindProcNode [INTERNAL]
238 *
239 * Finds the ProcList node associated with a given FOURCC code.
240 */
241 static struct IOProcList* MMIO_FindProcNode(FOURCC fccIOProc)
242 {
243 struct IOProcList* pListNode;
244
245 for (pListNode = pIOProcListAnchor; pListNode; pListNode = pListNode->pNext) {
246 if (pListNode->fourCC == fccIOProc) {
247 return pListNode;
248 }
249 }
250 return NULL;
251 }
252
253 /****************************************************************
254 * MMIO_InstallIOProc [INTERNAL]
255 */
256 LPMMIOPROC MMIO_InstallIOProc(FOURCC fccIOProc, LPMMIOPROC pIOProc,
257 DWORD dwFlags, enum mmioProcType type)
258 {
259 LPMMIOPROC lpProc = NULL;
260 struct IOProcList* pListNode;
261 struct IOProcList** ppListNode;
262
263 TRACE("(%08lx, %p, %08lX, %i)\n", fccIOProc, pIOProc, dwFlags, type);
264
265 if (dwFlags & MMIO_GLOBALPROC)
266 FIXME("Global procedures not implemented\n");
267
268 /* just handle the known procedures for now */
269 switch (dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) {
270 case MMIO_INSTALLPROC:
271 /* Create new entry for the IOProc list */
272 pListNode = HeapAlloc(GetProcessHeap(), 0, sizeof(*pListNode));
273 if (pListNode) {
274 /* Fill in this node */
275 pListNode->fourCC = fccIOProc;
276 pListNode->pIOProc = pIOProc;
277 pListNode->type = type;
278 pListNode->count = 0;
279
280 /* Stick it on the end of the list */
281 pListNode->pNext = pIOProcListAnchor;
282 pIOProcListAnchor = pListNode;
283
284 /* Return this IOProc - that's how the caller knows we succeeded */
285 lpProc = pIOProc;
286 }
287 break;
288
289 case MMIO_REMOVEPROC:
290 /*
291 * Search for the node that we're trying to remove
292 * We search for a matching fourCC code if it's non null, or the proc
293 * address otherwise
294 * note that this method won't find the first item on the list, but
295 * since the first two items on this list are ones we won't
296 * let the user delete anyway, that's okay
297 */
298 ppListNode = &pIOProcListAnchor;
299 while ((*ppListNode) &&
300 ((fccIOProc != 0) ?
301 (*ppListNode)->fourCC != fccIOProc :
302 (*ppListNode)->pIOProc != pIOProc))
303 ppListNode = &((*ppListNode)->pNext);
304
305 if (*ppListNode) { /* found it */
306 /* FIXME: what should be done if an open mmio object uses this proc ?
307 * shall we return an error, nuke the mmio object ?
308 */
309 if ((*ppListNode)->count) {
310 ERR("Cannot remove a mmIOProc while in use\n");
311 break;
312 }
313 /* remove it, but only if it isn't builtin */
314 if ((*ppListNode) >= defaultProcs &&
315 (*ppListNode) < defaultProcs + sizeof(defaultProcs)) {
316 WARN("Tried to remove built-in mmio proc. Skipping\n");
317 } else {
318 /* Okay, nuke it */
319 struct IOProcList* ptmpNode = *ppListNode;
320 lpProc = (*ppListNode)->pIOProc;
321 *ppListNode = (*ppListNode)->pNext;
322 HeapFree(GetProcessHeap(), 0, ptmpNode);
323 }
324 }
325 break;
326
327 case MMIO_FINDPROC:
328 if ((pListNode = MMIO_FindProcNode(fccIOProc))) {
329 lpProc = pListNode->pIOProc;
330 }
331 break;
332 }
333
334 return lpProc;
335 }
336
337 /****************************************************************
338 * send_message [INTERNAL]
339 */
340 static LRESULT send_message(struct IOProcList* ioProc, LPMMIOINFO mmioinfo,
341 DWORD wMsg, LPARAM lParam1,
342 LPARAM lParam2, enum mmioProcType type)
343 {
344 LRESULT result = MMSYSERR_ERROR;
345 LPARAM lp1 = lParam1, lp2 = lParam2;
346
347 if (!ioProc) {
348 ERR("brrr\n");
349 result = MMSYSERR_INVALPARAM;
350 }
351
352 switch (ioProc->type) {
353 case MMIO_PROC_16:
354 if (pFnMmioCallback16)
355 result = pFnMmioCallback16((DWORD)ioProc->pIOProc,
356 mmioinfo, wMsg, lp1, lp2);
357 break;
358 case MMIO_PROC_32A:
359 case MMIO_PROC_32W:
360 if (ioProc->type != type) {
361 /* map (lParam1, lParam2) into (lp1, lp2) 32 A<=>W */
362 FIXME("NIY 32 A<=>W mapping\n");
363 }
364 result = (ioProc->pIOProc)((LPSTR)mmioinfo, wMsg, lp1, lp2);
365
366 #if 0
367 if (ioProc->type != type) {
368 /* unmap (lParam1, lParam2) into (lp1, lp2) 32 A<=>W */
369 }
370 #endif
371 break;
372 default:
373 FIXME("Internal error\n");
374 }
375
376 return result;
377 }
378
379 /**************************************************************************
380 * MMIO_ParseExtA [internal]
381 *
382 * Parses a filename for the extension.
383 *
384 * RETURNS
385 * The FOURCC code for the extension if found, else 0.
386 */
387 static FOURCC MMIO_ParseExtA(LPCSTR szFileName)
388 {
389 /* Filenames are of the form file.ext{+ABC}
390 For now, we take the last '+' if present */
391
392 FOURCC ret = 0;
393
394 /* Note that ext{Start,End} point to the . and + respectively */
395 LPSTR extEnd;
396 LPSTR extStart;
397
398 TRACE("(%s)\n", debugstr_a(szFileName));
399
400 if (!szFileName)
401 return ret;
402
403 /* Find the last '.' */
404 extStart = strrchr(szFileName,'.');
405
406 if (!extStart) {
407 ERR("No . in szFileName: %s\n", debugstr_a(szFileName));
408 } else {
409 CHAR ext[5];
410
411 /* Find the '+' afterwards */
412 extEnd = strchr(extStart,'+');
413 if (extEnd) {
414
415 if (extEnd - extStart - 1 > 4)
416 WARN("Extension length > 4\n");
417 lstrcpynA(ext, extStart + 1, min(extEnd-extStart,5));
418
419 } else {
420 /* No + so just an extension */
421 if (strlen(extStart) > 4) {
422 WARN("Extension length > 4\n");
423 }
424 lstrcpynA(ext, extStart + 1, 5);
425 }
426 TRACE("Got extension: %s\n", debugstr_a(ext));
427
428 /* FOURCC codes identifying file-extensions must be uppercase */
429 ret = mmioStringToFOURCCA(ext, MMIO_TOUPPER);
430 }
431 return ret;
432 }
433
434 /**************************************************************************
435 * MMIO_Get [internal]
436 *
437 * Retrieves the mmio object from current process
438 */
439 LPWINE_MMIO MMIO_Get(HMMIO h)
440 {
441 LPWINE_MMIO wm = NULL;
442
443 EnterCriticalSection(&WINMM_IData->cs);
444 for (wm = WINMM_IData->lpMMIO; wm; wm = wm->lpNext) {
445 if (wm->info.hmmio == h)
446 break;
447 }
448 LeaveCriticalSection(&WINMM_IData->cs);
449 return wm;
450 }
451
452 /**************************************************************************
453 * MMIO_Create [internal]
454 *
455 * Creates an internal representation for a mmio instance
456 */
457 static LPWINE_MMIO MMIO_Create(void)
458 {
459 static WORD MMIO_counter = 0;
460 LPWINE_MMIO wm;
461
462 wm = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WINE_MMIO));
463 if (wm) {
464 EnterCriticalSection(&WINMM_IData->cs);
465 /* lookup next unallocated WORD handle, with a non NULL value */
466 while (++MMIO_counter == 0 || MMIO_Get((HMMIO)(ULONG_PTR)MMIO_counter));
467 wm->info.hmmio = (HMMIO)(ULONG_PTR)MMIO_counter;
468 wm->lpNext = WINMM_IData->lpMMIO;
469 WINMM_IData->lpMMIO = wm;
470 LeaveCriticalSection(&WINMM_IData->cs);
471 }
472 return wm;
473 }
474
475 /**************************************************************************
476 * MMIO_Destroy [internal]
477 *-
478 * Destroys an internal representation for a mmio instance
479 */
480 static BOOL MMIO_Destroy(LPWINE_MMIO wm)
481 {
482 LPWINE_MMIO* m;
483
484 EnterCriticalSection(&WINMM_IData->cs);
485 /* search for the matching one... */
486 m = &(WINMM_IData->lpMMIO);
487 while (*m && *m != wm) m = &(*m)->lpNext;
488 /* ...and destroy */
489 if (*m) {
490 *m = (*m)->lpNext;
491 HeapFree(GetProcessHeap(), 0, wm);
492 wm = NULL;
493 }
494 LeaveCriticalSection(&WINMM_IData->cs);
495 return wm ? FALSE : TRUE;
496 }
497
498 /****************************************************************
499 * MMIO_Flush [INTERNAL]
500 */
501 static MMRESULT MMIO_Flush(WINE_MMIO* wm, UINT uFlags)
502 {
503 if (wm->info.cchBuffer && (wm->info.fccIOProc != FOURCC_MEM)) {
504 /* not quite sure what to do here, but I'll guess */
505 if (wm->info.dwFlags & MMIO_DIRTY) {
506 /* FIXME: error handling */
507 send_message(wm->ioProc, &wm->info, MMIOM_SEEK,
508 wm->info.lBufOffset, SEEK_SET, MMIO_PROC_32A);
509 send_message(wm->ioProc, &wm->info, MMIOM_WRITE,
510 (LPARAM)wm->info.pchBuffer,
511 wm->info.pchNext - wm->info.pchBuffer, MMIO_PROC_32A);
512 }
513 if (uFlags & MMIO_EMPTYBUF)
514 wm->info.pchNext = wm->info.pchEndRead = wm->info.pchBuffer;
515 }
516 wm->info.dwFlags &= ~MMIO_DIRTY;
517
518 return MMSYSERR_NOERROR;
519 }
520
521 /***************************************************************************
522 * MMIO_GrabNextBuffer [INTERNAL]
523 */
524 static LONG MMIO_GrabNextBuffer(LPWINE_MMIO wm, int for_read)
525 {
526 LONG size = wm->info.cchBuffer;
527
528 TRACE("bo=%lx do=%lx of=%lx\n",
529 wm->info.lBufOffset, wm->info.lDiskOffset,
530 send_message(wm->ioProc, &wm->info, MMIOM_SEEK, 0, SEEK_CUR, MMIO_PROC_32A));
531
532 wm->info.lBufOffset = wm->info.lDiskOffset;
533 wm->info.pchNext = wm->info.pchBuffer;
534 wm->info.pchEndRead = wm->info.pchBuffer;
535 wm->info.pchEndWrite = wm->info.pchBuffer + wm->info.cchBuffer;
536
537 wm->bBufferLoaded = TRUE;
538 if (for_read) {
539 size = send_message(wm->ioProc, &wm->info, MMIOM_READ,
540 (LPARAM)wm->info.pchBuffer, size, MMIO_PROC_32A);
541 if (size > 0)
542 wm->info.pchEndRead += size;
543 else
544 wm->bBufferLoaded = FALSE;
545 }
546
547 return size;
548 }
549
550 /***************************************************************************
551 * MMIO_SetBuffer [INTERNAL]
552 */
553 static MMRESULT MMIO_SetBuffer(WINE_MMIO* wm, void* pchBuffer, LONG cchBuffer,
554 UINT uFlags)
555 {
556 TRACE("(%p %p %ld %u)\n", wm, pchBuffer, cchBuffer, uFlags);
557
558 if (uFlags) return MMSYSERR_INVALPARAM;
559 if (cchBuffer > 0xFFFF)
560 WARN("Untested handling of huge mmio buffers (%ld >= 64k)\n", cchBuffer);
561
562 if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR)
563 return MMIOERR_CANNOTWRITE;
564
565 /* free previous buffer if allocated */
566 if (wm->info.dwFlags & MMIO_ALLOCBUF) {
567 HeapFree(GetProcessHeap(), 0, wm->info.pchBuffer);
568 wm->info.pchBuffer = NULL;
569 wm->info.dwFlags &= ~MMIO_ALLOCBUF;
570 }
571
572 if (pchBuffer) {
573 wm->info.pchBuffer = pchBuffer;
574 } else if (cchBuffer) {
575 if (!(wm->info.pchBuffer = HeapAlloc(GetProcessHeap(), 0, cchBuffer)))
576 return MMIOERR_OUTOFMEMORY;
577 wm->info.dwFlags |= MMIO_ALLOCBUF;
578 } else {
579 wm->info.pchBuffer = NULL;
580 }
581
582 wm->info.cchBuffer = cchBuffer;
583 wm->info.pchNext = wm->info.pchBuffer;
584 wm->info.pchEndRead = wm->info.pchBuffer;
585 wm->info.pchEndWrite = wm->info.pchBuffer + cchBuffer;
586 wm->info.lBufOffset = 0;
587 wm->bBufferLoaded = FALSE;
588
589 return MMSYSERR_NOERROR;
590 }
591
592 /**************************************************************************
593 * MMIO_Open [internal]
594 */
595 HMMIO MMIO_Open(LPSTR szFileName, MMIOINFO* refmminfo, DWORD dwOpenFlags,
596 enum mmioProcType type)
597 {
598 LPWINE_MMIO wm;
599 MMIOINFO mmioinfo;
600
601 TRACE("('%s', %p, %08lX, %d);\n", szFileName, refmminfo, dwOpenFlags, type);
602
603 if (!refmminfo) {
604 refmminfo = &mmioinfo;
605
606 mmioinfo.fccIOProc = 0;
607 mmioinfo.pIOProc = NULL;
608 mmioinfo.pchBuffer = NULL;
609 mmioinfo.cchBuffer = 0;
610 type = MMIO_PROC_32A;
611 }
612
613 if (dwOpenFlags & (MMIO_PARSE|MMIO_EXIST)) {
614 char buffer[MAX_PATH];
615
616 if (GetFullPathNameA(szFileName, sizeof(buffer), buffer, NULL) >= sizeof(buffer))
617 return (HMMIO)FALSE;
618 if ((dwOpenFlags & MMIO_EXIST) && (GetFileAttributesA(buffer) == INVALID_FILE_ATTRIBUTES))
619 return (HMMIO)FALSE;
620 strcpy(szFileName, buffer);
621 return (HMMIO)TRUE;
622 }
623
624 if ((wm = MMIO_Create()) == NULL)
625 return 0;
626
627 /* If both params are NULL, then parse the file name if available */
628 if (refmminfo->fccIOProc == 0 && refmminfo->pIOProc == NULL) {
629 wm->info.fccIOProc = MMIO_ParseExtA(szFileName);
630 /* Handle any unhandled/error case. Assume DOS file */
631 if (wm->info.fccIOProc == 0)
632 wm->info.fccIOProc = FOURCC_DOS;
633 if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) {
634 /* If not found, retry with FOURCC_DOS */
635 wm->info.fccIOProc = FOURCC_DOS;
636 if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc)))
637 goto error2;
638 }
639 wm->bTmpIOProc = FALSE;
640 }
641 /* if just the four character code is present, look up IO proc */
642 else if (refmminfo->pIOProc == NULL) {
643 wm->info.fccIOProc = refmminfo->fccIOProc;
644 if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2;
645 wm->bTmpIOProc = FALSE;
646 }
647 /* if IO proc specified, use it and specified four character code */
648 else {
649 wm->info.fccIOProc = refmminfo->fccIOProc;
650 MMIO_InstallIOProc(wm->info.fccIOProc, refmminfo->pIOProc,
651 MMIO_INSTALLPROC, type);
652 if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2;
653 assert(wm->ioProc->pIOProc == refmminfo->pIOProc);
654 wm->bTmpIOProc = TRUE;
655 }
656
657 wm->bBufferLoaded = FALSE;
658 wm->ioProc->count++;
659
660 if (dwOpenFlags & MMIO_ALLOCBUF) {
661 if ((refmminfo->wErrorRet = MMIO_SetBuffer(wm, NULL, MMIO_DEFAULTBUFFER, 0)))
662 goto error1;
663 } else if (wm->info.fccIOProc == FOURCC_MEM) {
664 refmminfo->wErrorRet = MMIO_SetBuffer(wm, refmminfo->pchBuffer, refmminfo->cchBuffer, 0);
665 if (refmminfo->wErrorRet != MMSYSERR_NOERROR)
666 goto error1;
667 wm->bBufferLoaded = TRUE;
668 } /* else => unbuffered, wm->info.pchBuffer == NULL */
669
670 /* see mmioDosIOProc for that one */
671 wm->info.adwInfo[0] = refmminfo->adwInfo[0];
672 wm->info.dwFlags = dwOpenFlags;
673
674 /* call IO proc to actually open file */
675 refmminfo->wErrorRet = send_message(wm->ioProc, &wm->info, MMIOM_OPEN,
676 (LPARAM)szFileName, 0, MMIO_PROC_32A);
677
678 /* grab file size, when possible */
679 wm->dwFileSize = GetFileSize((HANDLE)wm->info.adwInfo[0], NULL);
680
681 if (refmminfo->wErrorRet == 0)
682 return wm->info.hmmio;
683 error1:
684 if (wm->ioProc) wm->ioProc->count--;
685 error2:
686 MMIO_Destroy(wm);
687 return 0;
688 }
689
690 /**************************************************************************
691 * mmioOpenW [WINMM.@]
692 */
693 HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo,
694 DWORD dwOpenFlags)
695 {
696 HMMIO ret;
697 LPSTR szFn = NULL;
698
699 if (szFileName)
700 {
701 INT len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL );
702 szFn = HeapAlloc( GetProcessHeap(), 0, len );
703 if (!szFn) return NULL;
704 WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL );
705 }
706
707 ret = MMIO_Open(szFn, lpmmioinfo, dwOpenFlags, MMIO_PROC_32W);
708
709 HeapFree(GetProcessHeap(), 0, szFn);
710 return ret;
711 }
712
713 /**************************************************************************
714 * mmioOpenA [WINMM.@]
715 */
716 HMMIO WINAPI mmioOpenA(LPSTR szFileName, MMIOINFO* lpmmioinfo,
717 DWORD dwOpenFlags)
718 {
719 return MMIO_Open(szFileName, lpmmioinfo, dwOpenFlags, MMIO_PROC_32A);
720 }
721
722 /**************************************************************************
723 * mmioClose [WINMM.@]
724 */
725 MMRESULT WINAPI mmioClose(HMMIO hmmio, UINT uFlags)
726 {
727 LPWINE_MMIO wm;
728 MMRESULT result;
729
730 TRACE("(%p, %04X);\n", hmmio, uFlags);
731
732 if ((wm = MMIO_Get(hmmio)) == NULL)
733 return MMSYSERR_INVALHANDLE;
734
735 if ((result = MMIO_Flush(wm, 0)) != MMSYSERR_NOERROR)
736 return result;
737
738 result = send_message(wm->ioProc, &wm->info, MMIOM_CLOSE,
739 uFlags, 0, MMIO_PROC_32A);
740
741 MMIO_SetBuffer(wm, NULL, 0, 0);
742
743 wm->ioProc->count--;
744
745 if (wm->bTmpIOProc)
746 MMIO_InstallIOProc(wm->info.fccIOProc, wm->ioProc->pIOProc,
747 MMIO_REMOVEPROC, wm->ioProc->type);
748
749 MMIO_Destroy(wm);
750
751 return result;
752 }
753
754 /**************************************************************************
755 * mmioRead [WINMM.@]
756 */
757 LONG WINAPI mmioRead(HMMIO hmmio, HPSTR pch, LONG cch)
758 {
759 LPWINE_MMIO wm;
760 LONG count;
761
762 TRACE("(%p, %p, %ld);\n", hmmio, pch, cch);
763
764 if ((wm = MMIO_Get(hmmio)) == NULL)
765 return -1;
766
767 /* unbuffered case first */
768 if (!wm->info.pchBuffer)
769 return send_message(wm->ioProc, &wm->info, MMIOM_READ,
770 (LPARAM)pch, cch, MMIO_PROC_32A);
771
772 /* first try from current buffer */
773 if (wm->info.pchNext != wm->info.pchEndRead) {
774 count = wm->info.pchEndRead - wm->info.pchNext;
775 if (count > cch || count < 0) count = cch;
776 memcpy(pch, wm->info.pchNext, count);
777 wm->info.pchNext += count;
778 pch += count;
779 cch -= count;
780 } else
781 count = 0;
782
783 if (cch && (wm->info.fccIOProc != FOURCC_MEM)) {
784 assert(wm->info.cchBuffer);
785
786 while (cch) {
787 LONG size;
788
789 size = MMIO_GrabNextBuffer(wm, TRUE);
790 if (size <= 0) break;
791 if (size > cch) size = cch;
792 memcpy(pch, wm->info.pchBuffer, size);
793 wm->info.pchNext += size;
794 pch += size;
795 cch -= size;
796 count += size;
797 }
798 }
799
800 TRACE("count=%ld\n", count);
801 return count;
802 }
803
804 /**************************************************************************
805 * mmioWrite [WINMM.@]
806 */
807 LONG WINAPI mmioWrite(HMMIO hmmio, HPCSTR pch, LONG cch)
808 {
809 LPWINE_MMIO wm;
810 LONG count;
811
812 TRACE("(%p, %p, %ld);\n", hmmio, pch, cch);
813
814 if ((wm = MMIO_Get(hmmio)) == NULL)
815 return -1;
816
817 if (wm->info.cchBuffer) {
818 LONG bytesW = 0;
819
820 count = 0;
821 while (cch) {
822 if (wm->info.pchNext != wm->info.pchEndWrite) {
823 count = wm->info.pchEndWrite - wm->info.pchNext;
824 if (count > cch || count < 0) count = cch;
825 memcpy(wm->info.pchNext, pch, count);
826 wm->info.pchNext += count;
827 pch += count;
828 cch -= count;
829 bytesW += count;
830 wm->info.dwFlags |= MMIO_DIRTY;
831 } else {
832 if (wm->info.fccIOProc == FOURCC_MEM) {
833 if (wm->info.adwInfo[0]) {
834 /* from where would we get the memory handle? */
835 FIXME("memory file expansion not implemented!\n");
836 break;
837 } else break;
838 }
839 }
840
841 if (wm->info.pchNext == wm->info.pchEndWrite)
842 {
843 MMIO_Flush(wm, MMIO_EMPTYBUF);
844 MMIO_GrabNextBuffer(wm, FALSE);
845 }
846 else break;
847 }
848 count = bytesW;
849 } else {
850 count = send_message(wm->ioProc, &wm->info, MMIOM_WRITE,
851 (LPARAM)pch, cch, MMIO_PROC_32A);
852 wm->info.lBufOffset = wm->info.lDiskOffset;
853 }
854
855 TRACE("bytes written=%ld\n", count);
856 return count;
857 }
858
859 /**************************************************************************
860 * mmioSeek [WINMM.@]
861 */
862 LONG WINAPI mmioSeek(HMMIO hmmio, LONG lOffset, INT iOrigin)
863 {
864 LPWINE_MMIO wm;
865 LONG offset;
866
867 TRACE("(%p, %08lX, %d);\n", hmmio, lOffset, iOrigin);
868
869 if ((wm = MMIO_Get(hmmio)) == NULL)
870 return MMSYSERR_INVALHANDLE;
871
872 /* not buffered, direct seek on file */
873 if (!wm->info.pchBuffer)
874 return send_message(wm->ioProc, &wm->info, MMIOM_SEEK,
875 lOffset, iOrigin, MMIO_PROC_32A);
876
877 switch (iOrigin) {
878 case SEEK_SET:
879 offset = lOffset;
880 break;
881 case SEEK_CUR:
882 offset = wm->info.lBufOffset + (wm->info.pchNext - wm->info.pchBuffer) + lOffset;
883 break;
884 case SEEK_END:
885 offset = ((wm->info.fccIOProc == FOURCC_MEM)? wm->info.cchBuffer : wm->dwFileSize) - lOffset;
886 break;
887 default:
888 return -1;
889 }
890
891 if (offset && offset >= wm->dwFileSize && wm->info.fccIOProc != FOURCC_MEM) {
892 /* should check that write mode exists */
893 if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR)
894 return -1;
895 wm->info.lBufOffset = offset;
896 wm->info.pchEndRead = wm->info.pchBuffer;
897 wm->info.pchEndWrite = wm->info.pchBuffer + wm->info.cchBuffer;
898 if ((wm->info.dwFlags & MMIO_RWMODE) == MMIO_READ) {
899 wm->info.lDiskOffset = wm->dwFileSize;
900 }
901 } else if ((wm->info.cchBuffer > 0) &&
902 ((offset < wm->info.lBufOffset) ||
903 (offset >= wm->info.lBufOffset + wm->info.cchBuffer) ||
904 !wm->bBufferLoaded)) {
905 /* stay in same buffer ? */
906 /* some memory mapped buffers are defined with -1 as a size */
907
908 /* condition to change buffer */
909 if ((wm->info.fccIOProc == FOURCC_MEM) ||
910 MMIO_Flush(wm, 0) != MMSYSERR_NOERROR ||
911 /* this also sets the wm->info.lDiskOffset field */
912 send_message(wm->ioProc, &wm->info, MMIOM_SEEK,
913 (offset / wm->info.cchBuffer) * wm->info.cchBuffer,
914 SEEK_SET, MMIO_PROC_32A) == -1)
915 return -1;
916 MMIO_GrabNextBuffer(wm, TRUE);
917 }
918
919 wm->info.pchNext = wm->info.pchBuffer + (offset - wm->info.lBufOffset);
920
921 TRACE("=> %ld\n", offset);
922 return offset;
923 }
924
925 /**************************************************************************
926 * mmioGetInfo [WINMM.@]
927 */
928 MMRESULT WINAPI mmioGetInfo(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags)
929 {
930 LPWINE_MMIO wm;
931
932 TRACE("(%p,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags);
933
934 if ((wm = MMIO_Get(hmmio)) == NULL)
935 return MMSYSERR_INVALHANDLE;
936
937 memcpy(lpmmioinfo, &wm->info, sizeof(MMIOINFO));
938 /* don't expose 16 bit ioproc:s */
939 if (wm->ioProc->type != MMIO_PROC_16)
940 lpmmioinfo->pIOProc = wm->ioProc->pIOProc;
941
942 return MMSYSERR_NOERROR;
943 }
944
945 /**************************************************************************
946 * mmioSetInfo [WINMM.@]
947 */
948 MMRESULT WINAPI mmioSetInfo(HMMIO hmmio, const MMIOINFO* lpmmioinfo, UINT uFlags)
949 {
950 LPWINE_MMIO wm;
951
952 TRACE("(%p,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags);
953
954 if ((wm = MMIO_Get(hmmio)) == NULL)
955 return MMSYSERR_INVALHANDLE;
956
957 /* check pointers coherence */
958 if (lpmmioinfo->pchNext < wm->info.pchBuffer ||
959 lpmmioinfo->pchNext > wm->info.pchBuffer + wm->info.cchBuffer ||
960 lpmmioinfo->pchEndRead < wm->info.pchBuffer ||
961 lpmmioinfo->pchEndRead > wm->info.pchBuffer + wm->info.cchBuffer ||
962 lpmmioinfo->pchEndWrite < wm->info.pchBuffer ||
963 lpmmioinfo->pchEndWrite > wm->info.pchBuffer + wm->info.cchBuffer)
964 return MMSYSERR_INVALPARAM;
965
966 wm->info.pchNext = lpmmioinfo->pchNext;
967 wm->info.pchEndRead = lpmmioinfo->pchEndRead;
968
969 return MMSYSERR_NOERROR;
970 }
971
972 /**************************************************************************
973 * mmioSetBuffer [WINMM.@]
974 */
975 MMRESULT WINAPI mmioSetBuffer(HMMIO hmmio, LPSTR pchBuffer, LONG cchBuffer, UINT uFlags)
976 {
977 LPWINE_MMIO wm;
978
979 TRACE("(hmmio=%p, pchBuf=%p, cchBuf=%ld, uFlags=%#08x)\n",
980 hmmio, pchBuffer, cchBuffer, uFlags);
981
982 if ((wm = MMIO_Get(hmmio)) == NULL)
983 return MMSYSERR_INVALHANDLE;
984
985 return MMIO_SetBuffer(wm, pchBuffer, cchBuffer, uFlags);
986 }
987
988 /**************************************************************************
989 * mmioFlush [WINMM.@]
990 */
991 MMRESULT WINAPI mmioFlush(HMMIO hmmio, UINT uFlags)
992 {
993 LPWINE_MMIO wm;
994
995 TRACE("(%p, %04X)\n", hmmio, uFlags);
996
997 if ((wm = MMIO_Get(hmmio)) == NULL)
998 return MMSYSERR_INVALHANDLE;
999
1000 return MMIO_Flush(wm, uFlags);
1001 }
1002
1003 /**************************************************************************
1004 * mmioAdvance [WINMM.@]
1005 */
1006 MMRESULT WINAPI mmioAdvance(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags)
1007 {
1008 LPWINE_MMIO wm;
1009
1010 TRACE("hmmio=%p, lpmmioinfo=%p, uFlags=%04X\n", hmmio, lpmmioinfo, uFlags);
1011
1012 /* NOTE: mmioAdvance16 heavily relies on parameters from lpmmioinfo we're using
1013 * here. be sure if you change something here to check mmioAdvance16 as well
1014 */
1015 if ((wm = MMIO_Get(hmmio)) == NULL)
1016 return MMSYSERR_INVALHANDLE;
1017
1018 if (!wm->info.cchBuffer)
1019 return MMIOERR_UNBUFFERED;
1020
1021 if (uFlags != MMIO_READ && uFlags != MMIO_WRITE)
1022 return MMSYSERR_INVALPARAM;
1023
1024 if (uFlags == MMIO_WRITE && (lpmmioinfo->dwFlags & MMIO_DIRTY))
1025 {
1026 send_message(wm->ioProc, &wm->info, MMIOM_SEEK,
1027 lpmmioinfo->lBufOffset, SEEK_SET, MMIO_PROC_32A);
1028 send_message(wm->ioProc, &wm->info, MMIOM_WRITE,
1029 (LPARAM)lpmmioinfo->pchBuffer,
1030 lpmmioinfo->pchNext - lpmmioinfo->pchBuffer, MMIO_PROC_32A);
1031 lpmmioinfo->dwFlags &= ~MMIO_DIRTY;
1032 }
1033 if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR)
1034 return MMIOERR_CANNOTWRITE;
1035
1036 if (lpmmioinfo) {
1037 wm->dwFileSize = max(wm->dwFileSize, lpmmioinfo->lBufOffset +
1038 (lpmmioinfo->pchNext - lpmmioinfo->pchBuffer));
1039 }
1040 MMIO_GrabNextBuffer(wm, uFlags == MMIO_READ);
1041
1042 if (lpmmioinfo) {
1043 lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
1044 lpmmioinfo->pchEndRead = lpmmioinfo->pchBuffer +
1045 (wm->info.pchEndRead - wm->info.pchBuffer);
1046 lpmmioinfo->pchEndWrite = lpmmioinfo->pchBuffer +
1047 (wm->info.pchEndWrite - wm->info.pchBuffer);
1048 lpmmioinfo->lDiskOffset = wm->info.lDiskOffset;
1049 lpmmioinfo->lBufOffset = wm->info.lBufOffset;
1050 }
1051 return MMSYSERR_NOERROR;
1052 }
1053
1054 /**************************************************************************
1055 * mmioStringToFOURCCA [WINMM.@]
1056 */
1057 FOURCC WINAPI mmioStringToFOURCCA(LPCSTR sz, UINT uFlags)
1058 {
1059 CHAR cc[4];
1060 int i = 0;
1061
1062 for (i = 0; i < 4 && sz[i]; i++) {
1063 if (uFlags & MMIO_TOUPPER) {
1064 cc[i] = toupper(sz[i]);
1065 } else {
1066 cc[i] = sz[i];
1067 }
1068 }
1069
1070 /* Pad with spaces */
1071 while (i < 4) cc[i++] = ' ';
1072
1073 TRACE("Got '%.4s'\n",cc);
1074 return mmioFOURCC(cc[0],cc[1],cc[2],cc[3]);
1075 }
1076
1077 /**************************************************************************
1078 * mmioStringToFOURCCW [WINMM.@]
1079 */
1080 FOURCC WINAPI mmioStringToFOURCCW(LPCWSTR sz, UINT uFlags)
1081 {
1082 char szA[4];
1083
1084 WideCharToMultiByte( CP_ACP, 0, sz, 4, szA, sizeof(szA), NULL, NULL );
1085 return mmioStringToFOURCCA(szA,uFlags);
1086 }
1087
1088 /**************************************************************************
1089 * mmioInstallIOProcA [WINMM.@]
1090 */
1091 LPMMIOPROC WINAPI mmioInstallIOProcA(FOURCC fccIOProc,
1092 LPMMIOPROC pIOProc, DWORD dwFlags)
1093 {
1094 return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32A);
1095 }
1096
1097 /**************************************************************************
1098 * mmioInstallIOProcW [WINMM.@]
1099 */
1100 LPMMIOPROC WINAPI mmioInstallIOProcW(FOURCC fccIOProc,
1101 LPMMIOPROC pIOProc, DWORD dwFlags)
1102 {
1103 return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32W);
1104 }
1105
1106 /******************************************************************
1107 * MMIO_SendMessage
1108 *
1109 *
1110 */
1111 LRESULT MMIO_SendMessage(HMMIO hmmio, UINT uMessage, LPARAM lParam1,
1112 LPARAM lParam2, enum mmioProcType type)
1113 {
1114 LPWINE_MMIO wm;
1115
1116 TRACE("(%p, %u, %ld, %ld, %d)\n", hmmio, uMessage, lParam1, lParam2, type);
1117
1118 if (uMessage < MMIOM_USER)
1119 return MMSYSERR_INVALPARAM;
1120
1121 if ((wm = MMIO_Get(hmmio)) == NULL)
1122 return MMSYSERR_INVALHANDLE;
1123
1124 return send_message(wm->ioProc, &wm->info, uMessage, lParam1, lParam2, type);
1125 }
1126
1127 /**************************************************************************
1128 * mmioSendMessage [WINMM.@]
1129 */
1130 LRESULT WINAPI mmioSendMessage(HMMIO hmmio, UINT uMessage,
1131 LPARAM lParam1, LPARAM lParam2)
1132 {
1133 return MMIO_SendMessage(hmmio, uMessage, lParam1, lParam2, MMIO_PROC_32A);
1134 }
1135
1136 /**************************************************************************
1137 * mmioDescend [WINMM.@]
1138 */
1139 MMRESULT WINAPI mmioDescend(HMMIO hmmio, LPMMCKINFO lpck,
1140 const MMCKINFO* lpckParent, UINT uFlags)
1141 {
1142 DWORD dwOldPos;
1143 FOURCC srchCkId;
1144 FOURCC srchType;
1145
1146
1147 TRACE("(%p, %p, %p, %04X);\n", hmmio, lpck, lpckParent, uFlags);
1148
1149 if (lpck == NULL)
1150 return MMSYSERR_INVALPARAM;
1151
1152 dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1153 TRACE("dwOldPos=%ld\n", dwOldPos);
1154
1155 if (lpckParent != NULL) {
1156 TRACE("seek inside parent at %ld !\n", lpckParent->dwDataOffset);
1157 /* EPP: was dwOldPos = mmioSeek(hmmio,lpckParent->dwDataOffset,SEEK_SET); */
1158 if (dwOldPos < lpckParent->dwDataOffset ||
1159 dwOldPos >= lpckParent->dwDataOffset + lpckParent->cksize) {
1160 WARN("outside parent chunk\n");
1161 return MMIOERR_CHUNKNOTFOUND;
1162 }
1163 }
1164
1165 /* The SDK docu says 'ckid' is used for all cases. Real World
1166 * examples disagree -Marcus,990216.
1167 */
1168
1169 srchType = 0;
1170 /* find_chunk looks for 'ckid' */
1171 if (uFlags & MMIO_FINDCHUNK)
1172 srchCkId = lpck->ckid;
1173 /* find_riff and find_list look for 'fccType' */
1174 if (uFlags & MMIO_FINDLIST) {
1175 srchCkId = FOURCC_LIST;
1176 srchType = lpck->fccType;
1177 }
1178 if (uFlags & MMIO_FINDRIFF) {
1179 srchCkId = FOURCC_RIFF;
1180 srchType = lpck->fccType;
1181 }
1182
1183 if (uFlags & (MMIO_FINDCHUNK|MMIO_FINDLIST|MMIO_FINDRIFF)) {
1184 TRACE("searching for %.4s.%.4s\n",
1185 (LPSTR)&srchCkId,
1186 srchType?(LPSTR)&srchType:"any ");
1187
1188 while (TRUE) {
1189 LONG ix;
1190
1191 ix = mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD));
1192 if (ix < 2*sizeof(DWORD)) {
1193 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1194 WARN("return ChunkNotFound\n");
1195 return MMIOERR_CHUNKNOTFOUND;
1196 }
1197 lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
1198 if (ix < lpck->dwDataOffset - dwOldPos) {
1199 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1200 WARN("return ChunkNotFound\n");
1201 return MMIOERR_CHUNKNOTFOUND;
1202 }
1203 TRACE("ckid=%.4s fcc=%.4s cksize=%08lX !\n",
1204 (LPSTR)&lpck->ckid,
1205 srchType?(LPSTR)&lpck->fccType:"<na>",
1206 lpck->cksize);
1207 if ((srchCkId == lpck->ckid) &&
1208 (!srchType || (srchType == lpck->fccType))
1209 )
1210 break;
1211
1212 dwOldPos = lpck->dwDataOffset + ((lpck->cksize + 1) & ~1);
1213 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1214 }
1215 } else {
1216 /* FIXME: unverified, does it do this? */
1217 /* NB: This part is used by WAVE_mciOpen, among others */
1218 if (mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD)) < 3 * sizeof(DWORD)) {
1219 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1220 WARN("return ChunkNotFound 2nd\n");
1221 return MMIOERR_CHUNKNOTFOUND;
1222 }
1223 lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
1224 }
1225 lpck->dwFlags = 0;
1226 /* If we were looking for RIFF/LIST chunks, the final file position
1227 * is after the chunkid. If we were just looking for the chunk
1228 * it is after the cksize. So add 4 in RIFF/LIST case.
1229 */
1230 if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
1231 mmioSeek(hmmio, lpck->dwDataOffset + sizeof(DWORD), SEEK_SET);
1232 else
1233 mmioSeek(hmmio, lpck->dwDataOffset, SEEK_SET);
1234 TRACE("lpck: ckid=%.4s, cksize=%ld, dwDataOffset=%ld fccType=%08lX (%.4s)!\n",
1235 (LPSTR)&lpck->ckid, lpck->cksize, lpck->dwDataOffset,
1236 lpck->fccType, srchType?(LPSTR)&lpck->fccType:"");
1237 return MMSYSERR_NOERROR;
1238 }
1239
1240 /**************************************************************************
1241 * mmioAscend [WINMM.@]
1242 */
1243 MMRESULT WINAPI mmioAscend(HMMIO hmmio, LPMMCKINFO lpck, UINT uFlags)
1244 {
1245 TRACE("(%p, %p, %04X);\n", hmmio, lpck, uFlags);
1246
1247 if (lpck->dwFlags & MMIO_DIRTY) {
1248 DWORD dwOldPos, dwNewSize;
1249
1250 TRACE("Chunk is dirty, checking if chunk's size is correct\n");
1251 dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1252 TRACE("dwOldPos=%ld lpck->dwDataOffset = %ld\n", dwOldPos, lpck->dwDataOffset);
1253 dwNewSize = dwOldPos - lpck->dwDataOffset;
1254 if (dwNewSize != lpck->cksize) {
1255 TRACE("Nope: lpck->cksize=%ld dwNewSize=%ld\n", lpck->cksize, dwNewSize);
1256 lpck->cksize = dwNewSize;
1257
1258 /* pad odd size with 0 */
1259 if (dwNewSize & 1) {
1260 char ch = 0;
1261 mmioWrite(hmmio, &ch, 1);
1262 }
1263 mmioSeek(hmmio, lpck->dwDataOffset - sizeof(DWORD), SEEK_SET);
1264 mmioWrite(hmmio, (LPSTR)&dwNewSize, sizeof(DWORD));
1265 }
1266 lpck->dwFlags = 0;
1267 }
1268
1269 mmioSeek(hmmio, lpck->dwDataOffset + ((lpck->cksize + 1) & ~1), SEEK_SET);
1270
1271 return MMSYSERR_NOERROR;
1272 }
1273
1274 /**************************************************************************
1275 * mmioCreateChunk [WINMM.@]
1276 */
1277 MMRESULT WINAPI mmioCreateChunk(HMMIO hmmio, MMCKINFO* lpck, UINT uFlags)
1278 {
1279 DWORD dwOldPos;
1280 LONG size;
1281 LONG ix;
1282
1283 TRACE("(%p, %p, %04X);\n", hmmio, lpck, uFlags);
1284
1285 dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
1286 TRACE("dwOldPos=%ld\n", dwOldPos);
1287
1288 if (uFlags == MMIO_CREATELIST)
1289 lpck->ckid = FOURCC_LIST;
1290 else if (uFlags == MMIO_CREATERIFF)
1291 lpck->ckid = FOURCC_RIFF;
1292
1293 TRACE("ckid=%.4s\n", (LPSTR)&lpck->ckid);
1294
1295 size = 2 * sizeof(DWORD);
1296 lpck->dwDataOffset = dwOldPos + size;
1297
1298 if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
1299 size += sizeof(DWORD);
1300 lpck->dwFlags = MMIO_DIRTY;
1301
1302 ix = mmioWrite(hmmio, (LPSTR)lpck, size);
1303 TRACE("after mmioWrite ix = %ld req = %ld, errno = %d\n",ix, size, errno);
1304 if (ix < size) {
1305 mmioSeek(hmmio, dwOldPos, SEEK_SET);
1306 WARN("return CannotWrite\n");
1307 return MMIOERR_CANNOTWRITE;
1308 }
1309
1310 return MMSYSERR_NOERROR;
1311 }
1312
1313 /**************************************************************************
1314 * mmioRenameA [WINMM.@]
1315 */
1316 MMRESULT WINAPI mmioRenameA(LPCSTR szFileName, LPCSTR szNewFileName,
1317 const MMIOINFO* lpmmioinfo, DWORD dwFlags)
1318 {
1319 struct IOProcList* ioProc = NULL;
1320 struct IOProcList tmp;
1321 FOURCC fcc;
1322
1323 TRACE("('%s', '%s', %p, %08lX);\n",
1324 debugstr_a(szFileName), debugstr_a(szNewFileName), lpmmioinfo, dwFlags);
1325
1326 /* If both params are NULL, then parse the file name */
1327 if (lpmmioinfo && lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL)
1328 {
1329 fcc = MMIO_ParseExtA(szFileName);
1330 if (fcc) ioProc = MMIO_FindProcNode(fcc);
1331 }
1332
1333 /* Handle any unhandled/error case from above. Assume DOS file */
1334 if (!lpmmioinfo || (lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL && ioProc == NULL))
1335 ioProc = MMIO_FindProcNode(FOURCC_DOS);
1336 /* if just the four character code is present, look up IO proc */
1337 else if (lpmmioinfo->pIOProc == NULL)
1338 ioProc = MMIO_FindProcNode(lpmmioinfo->fccIOProc);
1339 else /* use relevant ioProc */
1340 {
1341 ioProc = &tmp;
1342 tmp.fourCC = lpmmioinfo->fccIOProc;
1343 tmp.pIOProc = lpmmioinfo->pIOProc;
1344 tmp.type = MMIO_PROC_32A;
1345 tmp.count = 1;
1346 }
1347
1348 /* FIXME: should we actually pass lpmmioinfo down the drain ???
1349 * or make a copy of it because it's const ???
1350 */
1351 return send_message(ioProc, (MMIOINFO*)lpmmioinfo, MMIOM_RENAME,
1352 (LPARAM)szFileName, (LPARAM)szNewFileName, MMIO_PROC_32A);
1353 }
1354
1355 /**************************************************************************
1356 * mmioRenameW [WINMM.@]
1357 */
1358 MMRESULT WINAPI mmioRenameW(LPCWSTR szFileName, LPCWSTR szNewFileName,
1359 const MMIOINFO* lpmmioinfo, DWORD dwFlags)
1360 {
1361 LPSTR szFn = NULL;
1362 LPSTR sznFn = NULL;
1363 UINT ret = MMSYSERR_NOMEM;
1364 INT len;
1365
1366 if (szFileName)
1367 {
1368 len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL );
1369 szFn = HeapAlloc( GetProcessHeap(), 0, len );
1370 if (!szFn) goto done;
1371 WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL );
1372 }
1373 if (szNewFileName)
1374 {
1375 len = WideCharToMultiByte( CP_ACP, 0, szNewFileName, -1, NULL, 0, NULL, NULL );
1376 sznFn = HeapAlloc( GetProcessHeap(), 0, len );
1377 if (!sznFn) goto done;
1378 WideCharToMultiByte( CP_ACP, 0, szNewFileName, -1, sznFn, len, NULL, NULL );
1379 }
1380
1381 ret = mmioRenameA(szFn, sznFn, lpmmioinfo, dwFlags);
1382
1383 done:
1384 HeapFree(GetProcessHeap(),0,szFn);
1385 HeapFree(GetProcessHeap(),0,sznFn);
1386 return ret;
1387 }
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