/* * MMIO functions * * Copyright 1998 Andrew Taylor * Copyright 1998 Ove Kåven * Copyright 2000,2002 Eric Pouech * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ /* Still to be done: * + correct handling of global/local IOProcs (and temporary IOProcs) * + mode of mmio objects is not used (read vs write vs readwrite) * + thread safeness * + 32 A <=> W message mapping */ #include <ctype.h> #include <stdarg.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <assert.h> #include "windef.h" #include "winbase.h" #include "winnls.h" #include "mmsystem.h" #include "winemm.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(mmio); LRESULT (*pFnMmioCallback16)(DWORD,LPMMIOINFO,UINT,LPARAM,LPARAM) /* = NULL */; static WINE_MMIO *MMIOList; /************************************************************************** * mmioDosIOProc [internal] */ static LRESULT CALLBACK mmioDosIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage, LPARAM lParam1, LPARAM lParam2) { LRESULT ret = MMSYSERR_NOERROR; TRACE("(%p, %X, 0x%lx, 0x%lx);\n", lpmmioinfo, uMessage, lParam1, lParam2); switch (uMessage) { case MMIOM_OPEN: { /* Parameters: * lParam1 = szFileName parameter from mmioOpen * lParam2 = reserved * Returns: zero on success, error code on error * NOTE: lDiskOffset automatically set to zero */ LPCSTR szFileName = (LPCSTR)lParam1; if (lpmmioinfo->dwFlags & MMIO_GETTEMP) { FIXME("MMIO_GETTEMP not implemented\n"); return MMIOERR_CANNOTOPEN; } /* if filename NULL, assume open file handle in adwInfo[0] */ if (szFileName) { OFSTRUCT ofs; lpmmioinfo->adwInfo[0] = (DWORD)OpenFile(szFileName, &ofs, lpmmioinfo->dwFlags & 0xFFFF); } if (lpmmioinfo->adwInfo[0] == (DWORD)HFILE_ERROR) ret = MMIOERR_CANNOTOPEN; } break; case MMIOM_CLOSE: /* Parameters: * lParam1 = wFlags parameter from mmioClose * lParam2 = unused * Returns: zero on success, error code on error */ if (!(lParam1 & MMIO_FHOPEN)) _lclose((HFILE)lpmmioinfo->adwInfo[0]); break; case MMIOM_READ: /* Parameters: * lParam1 = huge pointer to read buffer * lParam2 = number of bytes to read * Returns: number of bytes read, 0 for EOF, -1 for error (error code * in wErrorRet) */ ret = _lread((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2); if (ret != -1) lpmmioinfo->lDiskOffset += ret; break; case MMIOM_WRITE: case MMIOM_WRITEFLUSH: /* no internal buffering, so WRITEFLUSH handled same as WRITE */ /* Parameters: * lParam1 = huge pointer to write buffer * lParam2 = number of bytes to write * Returns: number of bytes written, -1 for error (error code in * wErrorRet) */ ret = _hwrite((HFILE)lpmmioinfo->adwInfo[0], (HPSTR)lParam1, (LONG)lParam2); if (ret != -1) lpmmioinfo->lDiskOffset += ret; break; case MMIOM_SEEK: /* Parameters: * lParam1 = new position * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END) * Returns: new file postion, -1 on error */ ret = _llseek((HFILE)lpmmioinfo->adwInfo[0], (LONG)lParam1, (LONG)lParam2); if (ret != -1) lpmmioinfo->lDiskOffset = ret; return ret; case MMIOM_RENAME: /* Parameters: * lParam1 = old name * lParam2 = new name * Returns: zero on success, non-zero on failure */ if (!MoveFileA((const char*)lParam1, (const char*)lParam2)) ret = MMIOERR_FILENOTFOUND; break; default: FIXME("unexpected message %u\n", uMessage); return 0; } return ret; } /************************************************************************** * mmioMemIOProc [internal] */ static LRESULT CALLBACK mmioMemIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage, LPARAM lParam1, LPARAM lParam2) { TRACE("(%p,0x%04x,0x%08lx,0x%08lx)\n", lpmmioinfo, uMessage, lParam1, lParam2); switch (uMessage) { case MMIOM_OPEN: /* Parameters: * lParam1 = filename (must be NULL) * lParam2 = reserved * Returns: zero on success, error code on error * NOTE: lDiskOffset automatically set to zero */ /* FIXME: io proc shouldn't change it */ if (!(lpmmioinfo->dwFlags & MMIO_CREATE)) lpmmioinfo->pchEndRead = lpmmioinfo->pchEndWrite; lpmmioinfo->adwInfo[0] = HFILE_ERROR; return 0; case MMIOM_CLOSE: /* Parameters: * lParam1 = wFlags parameter from mmioClose * lParam2 = unused * Returns: zero on success, error code on error */ return 0; case MMIOM_READ: /* Parameters: * lParam1 = huge pointer to read buffer * lParam2 = number of bytes to read * Returns: number of bytes read, 0 for EOF, -1 for error (error code * in wErrorRet) * NOTE: lDiskOffset should be updated */ FIXME("MMIOM_READ on memory files should not occur, buffer may be lost!\n"); return 0; case MMIOM_WRITE: case MMIOM_WRITEFLUSH: /* no internal buffering, so WRITEFLUSH handled same as WRITE */ /* Parameters: * lParam1 = huge pointer to write buffer * lParam2 = number of bytes to write * Returns: number of bytes written, -1 for error (error code in * wErrorRet) * NOTE: lDiskOffset should be updated */ FIXME("MMIOM_WRITE on memory files should not occur, buffer may be lost!\n"); return 0; case MMIOM_SEEK: /* Parameters: * lParam1 = new position * lParam2 = from whence to seek (SEEK_SET, SEEK_CUR, SEEK_END) * Returns: new file postion, -1 on error * NOTE: lDiskOffset should be updated */ FIXME("MMIOM_SEEK on memory files should not occur, buffer may be lost!\n"); return -1; default: FIXME("unexpected message %u\n", uMessage); return 0; } } /* This array will be the entire list for most apps * Note that temporary ioProcs will be stored with a 0 fourCC code */ static struct IOProcList defaultProcs[] = { {&defaultProcs[1], FOURCC_DOS, (LPMMIOPROC)mmioDosIOProc, MMIO_PROC_32A, 0}, {NULL, FOURCC_MEM, (LPMMIOPROC)mmioMemIOProc, MMIO_PROC_32A, 0}, }; static struct IOProcList* pIOProcListAnchor = &defaultProcs[0]; /**************************************************************** * MMIO_FindProcNode [INTERNAL] * * Finds the ProcList node associated with a given FOURCC code. */ static struct IOProcList* MMIO_FindProcNode(FOURCC fccIOProc) { struct IOProcList* pListNode; for (pListNode = pIOProcListAnchor; pListNode; pListNode = pListNode->pNext) { if (pListNode->fourCC == fccIOProc) { return pListNode; } } return NULL; } /**************************************************************** * MMIO_InstallIOProc [INTERNAL] */ LPMMIOPROC MMIO_InstallIOProc(FOURCC fccIOProc, LPMMIOPROC pIOProc, DWORD dwFlags, enum mmioProcType type) { LPMMIOPROC lpProc = NULL; struct IOProcList* pListNode; struct IOProcList** ppListNode; TRACE("(%08x, %p, %08X, %i)\n", fccIOProc, pIOProc, dwFlags, type); if (dwFlags & MMIO_GLOBALPROC) FIXME("Global procedures not implemented\n"); /* just handle the known procedures for now */ switch (dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) { case MMIO_INSTALLPROC: /* Create new entry for the IOProc list */ pListNode = HeapAlloc(GetProcessHeap(), 0, sizeof(*pListNode)); if (pListNode) { /* Fill in this node */ pListNode->fourCC = fccIOProc; pListNode->pIOProc = pIOProc; pListNode->type = type; pListNode->count = 0; /* Stick it on the end of the list */ pListNode->pNext = pIOProcListAnchor; pIOProcListAnchor = pListNode; /* Return this IOProc - that's how the caller knows we succeeded */ lpProc = pIOProc; } break; case MMIO_REMOVEPROC: /* * Search for the node that we're trying to remove * We search for a matching fourCC code if it's non null, or the proc * address otherwise * note that this method won't find the first item on the list, but * since the first two items on this list are ones we won't * let the user delete anyway, that's okay */ ppListNode = &pIOProcListAnchor; while ((*ppListNode) && ((fccIOProc != 0) ? (*ppListNode)->fourCC != fccIOProc : (*ppListNode)->pIOProc != pIOProc)) ppListNode = &((*ppListNode)->pNext); if (*ppListNode) { /* found it */ /* FIXME: what should be done if an open mmio object uses this proc ? * shall we return an error, nuke the mmio object ? */ if ((*ppListNode)->count) { ERR("Cannot remove a mmIOProc while in use\n"); break; } /* remove it, but only if it isn't builtin */ if ((*ppListNode) >= defaultProcs && (*ppListNode) < defaultProcs + sizeof(defaultProcs)) { WARN("Tried to remove built-in mmio proc. Skipping\n"); } else { /* Okay, nuke it */ struct IOProcList* ptmpNode = *ppListNode; lpProc = (*ppListNode)->pIOProc; *ppListNode = (*ppListNode)->pNext; HeapFree(GetProcessHeap(), 0, ptmpNode); } } break; case MMIO_FINDPROC: if ((pListNode = MMIO_FindProcNode(fccIOProc))) { lpProc = pListNode->pIOProc; } break; } return lpProc; } /**************************************************************** * send_message [INTERNAL] */ static LRESULT send_message(struct IOProcList* ioProc, LPMMIOINFO mmioinfo, DWORD wMsg, LPARAM lParam1, LPARAM lParam2, enum mmioProcType type) { LRESULT result = MMSYSERR_ERROR; LPARAM lp1 = lParam1, lp2 = lParam2; if (!ioProc) { ERR("brrr\n"); result = MMSYSERR_INVALPARAM; } switch (ioProc->type) { case MMIO_PROC_16: if (pFnMmioCallback16) result = pFnMmioCallback16((DWORD)ioProc->pIOProc, mmioinfo, wMsg, lp1, lp2); break; case MMIO_PROC_32A: case MMIO_PROC_32W: if (ioProc->type != type) { /* map (lParam1, lParam2) into (lp1, lp2) 32 A<=>W */ FIXME("NIY 32 A<=>W mapping\n"); } result = (ioProc->pIOProc)((LPSTR)mmioinfo, wMsg, lp1, lp2); #if 0 if (ioProc->type != type) { /* unmap (lParam1, lParam2) into (lp1, lp2) 32 A<=>W */ } #endif break; default: FIXME("Internal error\n"); } return result; } /************************************************************************** * MMIO_ParseExtA [internal] * * Parses a filename for the extension. * * RETURNS * The FOURCC code for the extension if found, else 0. */ static FOURCC MMIO_ParseExtA(LPCSTR szFileName) { /* Filenames are of the form file.ext{+ABC} For now, we take the last '+' if present */ FOURCC ret = 0; /* Note that ext{Start,End} point to the . and + respectively */ LPSTR extEnd; LPSTR extStart; TRACE("(%s)\n", debugstr_a(szFileName)); if (!szFileName) return ret; /* Find the last '.' */ extStart = strrchr(szFileName,'.'); if (!extStart) { ERR("No . in szFileName: %s\n", debugstr_a(szFileName)); } else { CHAR ext[5]; /* Find the '+' afterwards */ extEnd = strchr(extStart,'+'); if (extEnd) { if (extEnd - extStart - 1 > 4) WARN("Extension length > 4\n"); lstrcpynA(ext, extStart + 1, min(extEnd-extStart,5)); } else { /* No + so just an extension */ if (strlen(extStart) > 4) { WARN("Extension length > 4\n"); } lstrcpynA(ext, extStart + 1, 5); } TRACE("Got extension: %s\n", debugstr_a(ext)); /* FOURCC codes identifying file-extensions must be uppercase */ ret = mmioStringToFOURCCA(ext, MMIO_TOUPPER); } return ret; } /************************************************************************** * MMIO_Get [internal] * * Retrieves the mmio object from current process */ LPWINE_MMIO MMIO_Get(HMMIO h) { LPWINE_MMIO wm = NULL; EnterCriticalSection(&WINMM_cs); for (wm = MMIOList; wm; wm = wm->lpNext) { if (wm->info.hmmio == h) break; } LeaveCriticalSection(&WINMM_cs); return wm; } /************************************************************************** * MMIO_Create [internal] * * Creates an internal representation for a mmio instance */ static LPWINE_MMIO MMIO_Create(void) { static WORD MMIO_counter = 0; LPWINE_MMIO wm; wm = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WINE_MMIO)); if (wm) { EnterCriticalSection(&WINMM_cs); /* lookup next unallocated WORD handle, with a non NULL value */ while (++MMIO_counter == 0 || MMIO_Get((HMMIO)(ULONG_PTR)MMIO_counter)); wm->info.hmmio = (HMMIO)(ULONG_PTR)MMIO_counter; wm->lpNext = MMIOList; MMIOList = wm; LeaveCriticalSection(&WINMM_cs); } return wm; } /************************************************************************** * MMIO_Destroy [internal] *- * Destroys an internal representation for a mmio instance */ static BOOL MMIO_Destroy(LPWINE_MMIO wm) { LPWINE_MMIO* m; EnterCriticalSection(&WINMM_cs); /* search for the matching one... */ m = &MMIOList; while (*m && *m != wm) m = &(*m)->lpNext; /* ...and destroy */ if (*m) { *m = (*m)->lpNext; HeapFree(GetProcessHeap(), 0, wm); wm = NULL; } LeaveCriticalSection(&WINMM_cs); return wm ? FALSE : TRUE; } /**************************************************************** * MMIO_Flush [INTERNAL] */ static MMRESULT MMIO_Flush(WINE_MMIO* wm, UINT uFlags) { if (wm->info.cchBuffer && (wm->info.fccIOProc != FOURCC_MEM)) { /* not quite sure what to do here, but I'll guess */ if (wm->info.dwFlags & MMIO_DIRTY) { /* FIXME: error handling */ send_message(wm->ioProc, &wm->info, MMIOM_SEEK, wm->info.lBufOffset, SEEK_SET, MMIO_PROC_32A); send_message(wm->ioProc, &wm->info, MMIOM_WRITE, (LPARAM)wm->info.pchBuffer, wm->info.pchNext - wm->info.pchBuffer, MMIO_PROC_32A); } if (uFlags & MMIO_EMPTYBUF) wm->info.pchNext = wm->info.pchEndRead = wm->info.pchBuffer; } wm->info.dwFlags &= ~MMIO_DIRTY; return MMSYSERR_NOERROR; } /*************************************************************************** * MMIO_GrabNextBuffer [INTERNAL] */ static LONG MMIO_GrabNextBuffer(LPWINE_MMIO wm, int for_read) { LONG size = wm->info.cchBuffer; TRACE("bo=%x do=%x of=%lx\n", wm->info.lBufOffset, wm->info.lDiskOffset, send_message(wm->ioProc, &wm->info, MMIOM_SEEK, 0, SEEK_CUR, MMIO_PROC_32A)); wm->info.lBufOffset = wm->info.lDiskOffset; wm->info.pchNext = wm->info.pchBuffer; wm->info.pchEndRead = wm->info.pchBuffer; wm->info.pchEndWrite = wm->info.pchBuffer + wm->info.cchBuffer; wm->bBufferLoaded = TRUE; if (for_read) { size = send_message(wm->ioProc, &wm->info, MMIOM_READ, (LPARAM)wm->info.pchBuffer, size, MMIO_PROC_32A); if (size > 0) wm->info.pchEndRead += size; else wm->bBufferLoaded = FALSE; } return size; } /*************************************************************************** * MMIO_SetBuffer [INTERNAL] */ static MMRESULT MMIO_SetBuffer(WINE_MMIO* wm, void* pchBuffer, LONG cchBuffer, UINT uFlags) { TRACE("(%p %p %d %u)\n", wm, pchBuffer, cchBuffer, uFlags); if (cchBuffer > 0xFFFF) WARN("Untested handling of huge mmio buffers (%d >= 64k)\n", cchBuffer); if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR) return MMIOERR_CANNOTWRITE; /* free previous buffer if allocated */ if (wm->info.dwFlags & MMIO_ALLOCBUF) { HeapFree(GetProcessHeap(), 0, wm->info.pchBuffer); wm->info.pchBuffer = NULL; wm->info.dwFlags &= ~MMIO_ALLOCBUF; } if (pchBuffer) { wm->info.pchBuffer = pchBuffer; } else if (cchBuffer) { if (!(wm->info.pchBuffer = HeapAlloc(GetProcessHeap(), 0, cchBuffer))) return MMIOERR_OUTOFMEMORY; wm->info.dwFlags |= MMIO_ALLOCBUF; } else { wm->info.pchBuffer = NULL; } wm->info.cchBuffer = cchBuffer; wm->info.pchNext = wm->info.pchBuffer; wm->info.pchEndRead = wm->info.pchBuffer; wm->info.pchEndWrite = wm->info.pchBuffer + cchBuffer; wm->info.lBufOffset = wm->info.lDiskOffset; wm->bBufferLoaded = FALSE; return MMSYSERR_NOERROR; } /************************************************************************** * MMIO_Open [internal] */ HMMIO MMIO_Open(LPSTR szFileName, MMIOINFO* refmminfo, DWORD dwOpenFlags, enum mmioProcType type) { LPWINE_MMIO wm; MMIOINFO mmioinfo; TRACE("('%s', %p, %08X, %d);\n", szFileName, refmminfo, dwOpenFlags, type); if (!refmminfo) { refmminfo = &mmioinfo; mmioinfo.fccIOProc = 0; mmioinfo.pIOProc = NULL; mmioinfo.pchBuffer = NULL; mmioinfo.cchBuffer = 0; type = MMIO_PROC_32A; } if (dwOpenFlags & (MMIO_PARSE|MMIO_EXIST)) { char buffer[MAX_PATH]; if (GetFullPathNameA(szFileName, sizeof(buffer), buffer, NULL) >= sizeof(buffer)) return (HMMIO)FALSE; if ((dwOpenFlags & MMIO_EXIST) && (GetFileAttributesA(buffer) == INVALID_FILE_ATTRIBUTES)) return (HMMIO)FALSE; strcpy(szFileName, buffer); return (HMMIO)TRUE; } if ((wm = MMIO_Create()) == NULL) return 0; /* If both params are NULL, then parse the file name if available */ if (refmminfo->fccIOProc == 0 && refmminfo->pIOProc == NULL) { wm->info.fccIOProc = MMIO_ParseExtA(szFileName); /* Handle any unhandled/error case. Assume DOS file */ if (wm->info.fccIOProc == 0) wm->info.fccIOProc = FOURCC_DOS; if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) { /* If not found, retry with FOURCC_DOS */ wm->info.fccIOProc = FOURCC_DOS; if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2; } wm->bTmpIOProc = FALSE; } /* if just the four character code is present, look up IO proc */ else if (refmminfo->pIOProc == NULL) { wm->info.fccIOProc = refmminfo->fccIOProc; if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2; wm->bTmpIOProc = FALSE; } /* if IO proc specified, use it and specified four character code */ else { wm->info.fccIOProc = refmminfo->fccIOProc; MMIO_InstallIOProc(wm->info.fccIOProc, refmminfo->pIOProc, MMIO_INSTALLPROC, type); if (!(wm->ioProc = MMIO_FindProcNode(wm->info.fccIOProc))) goto error2; assert(wm->ioProc->pIOProc == refmminfo->pIOProc); wm->bTmpIOProc = TRUE; } wm->ioProc->count++; wm->info.dwFlags = dwOpenFlags; if (dwOpenFlags & MMIO_ALLOCBUF) { refmminfo->wErrorRet = MMIO_SetBuffer(wm, refmminfo->pchBuffer, refmminfo->cchBuffer ? refmminfo->cchBuffer : MMIO_DEFAULTBUFFER, 0); if (refmminfo->wErrorRet != MMSYSERR_NOERROR) goto error1; } else { refmminfo->wErrorRet = MMIO_SetBuffer(wm, refmminfo->pchBuffer, refmminfo->cchBuffer, 0); if (refmminfo->wErrorRet != MMSYSERR_NOERROR) goto error1; } if (wm->info.fccIOProc == FOURCC_MEM && !(wm->info.dwFlags & MMIO_ALLOCBUF)) wm->bBufferLoaded = TRUE; /* see mmioDosIOProc for that one */ wm->info.adwInfo[0] = refmminfo->adwInfo[0]; /* call IO proc to actually open file */ refmminfo->wErrorRet = send_message(wm->ioProc, &wm->info, MMIOM_OPEN, (LPARAM)szFileName, 0, MMIO_PROC_32A); /* grab file size, when possible */ wm->dwFileSize = GetFileSize((HANDLE)wm->info.adwInfo[0], NULL); if (refmminfo->wErrorRet == 0) return wm->info.hmmio; error1: if (wm->ioProc) wm->ioProc->count--; error2: MMIO_Destroy(wm); return 0; } /************************************************************************** * mmioOpenW [WINMM.@] */ HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo, DWORD dwOpenFlags) { HMMIO ret; LPSTR szFn = NULL; if (szFileName) { INT len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL ); szFn = HeapAlloc( GetProcessHeap(), 0, len ); if (!szFn) return NULL; WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL ); } ret = MMIO_Open(szFn, lpmmioinfo, dwOpenFlags, MMIO_PROC_32W); HeapFree(GetProcessHeap(), 0, szFn); return ret; } /************************************************************************** * mmioOpenA [WINMM.@] */ HMMIO WINAPI mmioOpenA(LPSTR szFileName, MMIOINFO* lpmmioinfo, DWORD dwOpenFlags) { return MMIO_Open(szFileName, lpmmioinfo, dwOpenFlags, MMIO_PROC_32A); } /************************************************************************** * mmioClose [WINMM.@] */ MMRESULT WINAPI mmioClose(HMMIO hmmio, UINT uFlags) { LPWINE_MMIO wm; MMRESULT result; TRACE("(%p, %04X);\n", hmmio, uFlags); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; if ((result = MMIO_Flush(wm, 0)) != MMSYSERR_NOERROR) return result; result = send_message(wm->ioProc, &wm->info, MMIOM_CLOSE, uFlags, 0, MMIO_PROC_32A); MMIO_SetBuffer(wm, NULL, 0, 0); wm->ioProc->count--; if (wm->bTmpIOProc) MMIO_InstallIOProc(wm->info.fccIOProc, wm->ioProc->pIOProc, MMIO_REMOVEPROC, wm->ioProc->type); MMIO_Destroy(wm); return result; } /************************************************************************** * mmioRead [WINMM.@] */ LONG WINAPI mmioRead(HMMIO hmmio, HPSTR pch, LONG cch) { LPWINE_MMIO wm; LONG count; TRACE("(%p, %p, %d);\n", hmmio, pch, cch); if ((wm = MMIO_Get(hmmio)) == NULL) return -1; /* unbuffered case first */ if (!wm->info.pchBuffer) return send_message(wm->ioProc, &wm->info, MMIOM_READ, (LPARAM)pch, cch, MMIO_PROC_32A); /* first try from current buffer */ if (wm->info.pchNext != wm->info.pchEndRead) { count = wm->info.pchEndRead - wm->info.pchNext; if (count > cch || count < 0) count = cch; memcpy(pch, wm->info.pchNext, count); wm->info.pchNext += count; pch += count; cch -= count; } else count = 0; if (cch && (wm->info.fccIOProc != FOURCC_MEM)) { assert(wm->info.cchBuffer); while (cch) { LONG size; size = MMIO_GrabNextBuffer(wm, TRUE); if (size <= 0) break; if (size > cch) size = cch; memcpy(pch, wm->info.pchBuffer, size); wm->info.pchNext += size; pch += size; cch -= size; count += size; } } TRACE("count=%d\n", count); return count; } /************************************************************************** * mmioWrite [WINMM.@] */ LONG WINAPI mmioWrite(HMMIO hmmio, HPCSTR pch, LONG cch) { LPWINE_MMIO wm; LONG count; TRACE("(%p, %p, %d);\n", hmmio, pch, cch); if ((wm = MMIO_Get(hmmio)) == NULL) return -1; if (wm->info.cchBuffer) { LONG bytesW = 0; count = 0; while (cch) { if (wm->info.pchNext != wm->info.pchEndWrite) { count = wm->info.pchEndWrite - wm->info.pchNext; if (count > cch || count < 0) count = cch; memcpy(wm->info.pchNext, pch, count); wm->info.pchNext += count; pch += count; cch -= count; bytesW += count; wm->info.dwFlags |= MMIO_DIRTY; } else { if (wm->info.fccIOProc == FOURCC_MEM) { if (wm->info.adwInfo[0]) { /* from where would we get the memory handle? */ FIXME("memory file expansion not implemented!\n"); break; } else break; } } if (wm->info.pchNext == wm->info.pchEndWrite) { MMIO_Flush(wm, MMIO_EMPTYBUF); MMIO_GrabNextBuffer(wm, FALSE); } else break; } count = bytesW; } else { count = send_message(wm->ioProc, &wm->info, MMIOM_WRITE, (LPARAM)pch, cch, MMIO_PROC_32A); wm->info.lBufOffset = wm->info.lDiskOffset; } TRACE("bytes written=%d\n", count); return count; } /************************************************************************** * mmioSeek [WINMM.@] */ LONG WINAPI mmioSeek(HMMIO hmmio, LONG lOffset, INT iOrigin) { LPWINE_MMIO wm; LONG offset; TRACE("(%p, %08X, %d);\n", hmmio, lOffset, iOrigin); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; /* not buffered, direct seek on file */ if (!wm->info.pchBuffer) return send_message(wm->ioProc, &wm->info, MMIOM_SEEK, lOffset, iOrigin, MMIO_PROC_32A); switch (iOrigin) { case SEEK_SET: offset = lOffset; break; case SEEK_CUR: offset = wm->info.lBufOffset + (wm->info.pchNext - wm->info.pchBuffer) + lOffset; break; case SEEK_END: offset = ((wm->info.fccIOProc == FOURCC_MEM)? wm->info.cchBuffer : wm->dwFileSize) - lOffset; break; default: return -1; } if (offset && offset >= wm->dwFileSize && wm->info.fccIOProc != FOURCC_MEM) { /* should check that write mode exists */ if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR) return -1; wm->info.lBufOffset = offset; wm->info.pchEndRead = wm->info.pchBuffer; wm->info.pchEndWrite = wm->info.pchBuffer + wm->info.cchBuffer; if ((wm->info.dwFlags & MMIO_RWMODE) == MMIO_READ) { wm->info.lDiskOffset = wm->dwFileSize; } } else if ((wm->info.cchBuffer > 0) && ((offset < wm->info.lBufOffset) || (offset >= wm->info.lBufOffset + wm->info.cchBuffer) || !wm->bBufferLoaded)) { /* stay in same buffer ? */ /* some memory mapped buffers are defined with -1 as a size */ /* condition to change buffer */ if ((wm->info.fccIOProc == FOURCC_MEM) || MMIO_Flush(wm, 0) != MMSYSERR_NOERROR || /* this also sets the wm->info.lDiskOffset field */ send_message(wm->ioProc, &wm->info, MMIOM_SEEK, (offset / wm->info.cchBuffer) * wm->info.cchBuffer, SEEK_SET, MMIO_PROC_32A) == -1) return -1; MMIO_GrabNextBuffer(wm, TRUE); } wm->info.pchNext = wm->info.pchBuffer + (offset - wm->info.lBufOffset); TRACE("=> %d\n", offset); return offset; } /************************************************************************** * mmioGetInfo [WINMM.@] */ MMRESULT WINAPI mmioGetInfo(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags) { LPWINE_MMIO wm; TRACE("(%p,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; *lpmmioinfo = wm->info; /* don't expose 16 bit ioproc:s */ if (wm->ioProc->type != MMIO_PROC_16) lpmmioinfo->pIOProc = wm->ioProc->pIOProc; return MMSYSERR_NOERROR; } /************************************************************************** * mmioSetInfo [WINMM.@] */ MMRESULT WINAPI mmioSetInfo(HMMIO hmmio, const MMIOINFO* lpmmioinfo, UINT uFlags) { LPWINE_MMIO wm; TRACE("(%p,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; /* check pointers coherence */ if (lpmmioinfo->pchNext < wm->info.pchBuffer || lpmmioinfo->pchNext > wm->info.pchBuffer + wm->info.cchBuffer || lpmmioinfo->pchEndRead < wm->info.pchBuffer || lpmmioinfo->pchEndRead > wm->info.pchBuffer + wm->info.cchBuffer || lpmmioinfo->pchEndWrite < wm->info.pchBuffer || lpmmioinfo->pchEndWrite > wm->info.pchBuffer + wm->info.cchBuffer) return MMSYSERR_INVALPARAM; wm->info.pchNext = lpmmioinfo->pchNext; wm->info.pchEndRead = lpmmioinfo->pchEndRead; return MMSYSERR_NOERROR; } /************************************************************************** * mmioSetBuffer [WINMM.@] */ MMRESULT WINAPI mmioSetBuffer(HMMIO hmmio, LPSTR pchBuffer, LONG cchBuffer, UINT uFlags) { LPWINE_MMIO wm; TRACE("(hmmio=%p, pchBuf=%p, cchBuf=%d, uFlags=%#08x)\n", hmmio, pchBuffer, cchBuffer, uFlags); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; return MMIO_SetBuffer(wm, pchBuffer, cchBuffer, uFlags); } /************************************************************************** * mmioFlush [WINMM.@] */ MMRESULT WINAPI mmioFlush(HMMIO hmmio, UINT uFlags) { LPWINE_MMIO wm; TRACE("(%p, %04X)\n", hmmio, uFlags); if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; return MMIO_Flush(wm, uFlags); } /************************************************************************** * mmioAdvance [WINMM.@] */ MMRESULT WINAPI mmioAdvance(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags) { LPWINE_MMIO wm; TRACE("hmmio=%p, lpmmioinfo=%p, uFlags=%04X\n", hmmio, lpmmioinfo, uFlags); /* NOTE: mmioAdvance16 heavily relies on parameters from lpmmioinfo we're using * here. be sure if you change something here to check mmioAdvance16 as well */ if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; if (!wm->info.cchBuffer) return MMIOERR_UNBUFFERED; if (uFlags != MMIO_READ && uFlags != MMIO_WRITE) return MMSYSERR_INVALPARAM; if (uFlags == MMIO_WRITE && (lpmmioinfo->dwFlags & MMIO_DIRTY)) { send_message(wm->ioProc, &wm->info, MMIOM_SEEK, lpmmioinfo->lBufOffset, SEEK_SET, MMIO_PROC_32A); send_message(wm->ioProc, &wm->info, MMIOM_WRITE, (LPARAM)lpmmioinfo->pchBuffer, lpmmioinfo->pchNext - lpmmioinfo->pchBuffer, MMIO_PROC_32A); lpmmioinfo->dwFlags &= ~MMIO_DIRTY; } if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR) return MMIOERR_CANNOTWRITE; if (lpmmioinfo) { wm->dwFileSize = max(wm->dwFileSize, lpmmioinfo->lBufOffset + (lpmmioinfo->pchNext - lpmmioinfo->pchBuffer)); } MMIO_GrabNextBuffer(wm, uFlags == MMIO_READ); if (lpmmioinfo) { lpmmioinfo->pchNext = lpmmioinfo->pchBuffer; lpmmioinfo->pchEndRead = lpmmioinfo->pchBuffer + (wm->info.pchEndRead - wm->info.pchBuffer); lpmmioinfo->pchEndWrite = lpmmioinfo->pchBuffer + (wm->info.pchEndWrite - wm->info.pchBuffer); lpmmioinfo->lDiskOffset = wm->info.lDiskOffset; lpmmioinfo->lBufOffset = wm->info.lBufOffset; } return MMSYSERR_NOERROR; } /************************************************************************** * mmioStringToFOURCCA [WINMM.@] */ FOURCC WINAPI mmioStringToFOURCCA(LPCSTR sz, UINT uFlags) { CHAR cc[4]; int i = 0; for (i = 0; i < 4 && sz[i]; i++) { if (uFlags & MMIO_TOUPPER) { cc[i] = toupper(sz[i]); } else { cc[i] = sz[i]; } } /* Pad with spaces */ while (i < 4) cc[i++] = ' '; TRACE("Got '%.4s'\n",cc); return mmioFOURCC(cc[0],cc[1],cc[2],cc[3]); } /************************************************************************** * mmioStringToFOURCCW [WINMM.@] */ FOURCC WINAPI mmioStringToFOURCCW(LPCWSTR sz, UINT uFlags) { char szA[4]; WideCharToMultiByte( CP_ACP, 0, sz, 4, szA, sizeof(szA), NULL, NULL ); return mmioStringToFOURCCA(szA,uFlags); } /************************************************************************** * mmioInstallIOProcA [WINMM.@] */ LPMMIOPROC WINAPI mmioInstallIOProcA(FOURCC fccIOProc, LPMMIOPROC pIOProc, DWORD dwFlags) { return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32A); } /************************************************************************** * mmioInstallIOProcW [WINMM.@] */ LPMMIOPROC WINAPI mmioInstallIOProcW(FOURCC fccIOProc, LPMMIOPROC pIOProc, DWORD dwFlags) { return MMIO_InstallIOProc(fccIOProc, pIOProc, dwFlags, MMIO_PROC_32W); } /****************************************************************** * MMIO_SendMessage * * */ LRESULT MMIO_SendMessage(HMMIO hmmio, UINT uMessage, LPARAM lParam1, LPARAM lParam2, enum mmioProcType type) { LPWINE_MMIO wm; TRACE("(%p, %u, %ld, %ld, %d)\n", hmmio, uMessage, lParam1, lParam2, type); if (uMessage < MMIOM_USER) return MMSYSERR_INVALPARAM; if ((wm = MMIO_Get(hmmio)) == NULL) return MMSYSERR_INVALHANDLE; return send_message(wm->ioProc, &wm->info, uMessage, lParam1, lParam2, type); } /************************************************************************** * mmioSendMessage [WINMM.@] */ LRESULT WINAPI mmioSendMessage(HMMIO hmmio, UINT uMessage, LPARAM lParam1, LPARAM lParam2) { return MMIO_SendMessage(hmmio, uMessage, lParam1, lParam2, MMIO_PROC_32A); } /************************************************************************** * mmioDescend [WINMM.@] */ MMRESULT WINAPI mmioDescend(HMMIO hmmio, LPMMCKINFO lpck, const MMCKINFO* lpckParent, UINT uFlags) { DWORD dwOldPos; FOURCC srchCkId; FOURCC srchType; TRACE("(%p, %p, %p, %04X);\n", hmmio, lpck, lpckParent, uFlags); if (lpck == NULL) return MMSYSERR_INVALPARAM; dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR); TRACE("dwOldPos=%d\n", dwOldPos); if (lpckParent != NULL) { TRACE("seek inside parent at %d !\n", lpckParent->dwDataOffset); /* EPP: was dwOldPos = mmioSeek(hmmio,lpckParent->dwDataOffset,SEEK_SET); */ if (dwOldPos < lpckParent->dwDataOffset || dwOldPos >= lpckParent->dwDataOffset + lpckParent->cksize) { WARN("outside parent chunk\n"); return MMIOERR_CHUNKNOTFOUND; } } /* The SDK docu says 'ckid' is used for all cases. Real World * examples disagree -Marcus,990216. */ srchCkId = 0; srchType = 0; /* find_chunk looks for 'ckid' */ if (uFlags & MMIO_FINDCHUNK) srchCkId = lpck->ckid; /* find_riff and find_list look for 'fccType' */ if (uFlags & MMIO_FINDLIST) { srchCkId = FOURCC_LIST; srchType = lpck->fccType; } if (uFlags & MMIO_FINDRIFF) { srchCkId = FOURCC_RIFF; srchType = lpck->fccType; } TRACE("searching for %4.4s.%4.4s\n", (LPCSTR)&srchCkId, srchType ? (LPCSTR)&srchType : "any"); while (TRUE) { LONG ix; ix = mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD)); if (ix < 2*sizeof(DWORD)) { mmioSeek(hmmio, dwOldPos, SEEK_SET); WARN("return ChunkNotFound\n"); return MMIOERR_CHUNKNOTFOUND; } lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD); TRACE("ckid=%4.4s fcc=%4.4s cksize=%08X !\n", (LPCSTR)&lpck->ckid, srchType ? (LPCSTR)&lpck->fccType:"<na>", lpck->cksize); if ( (!srchCkId || (srchCkId == lpck->ckid)) && (!srchType || (srchType == lpck->fccType)) ) break; dwOldPos = lpck->dwDataOffset + ((lpck->cksize + 1) & ~1); mmioSeek(hmmio, dwOldPos, SEEK_SET); } lpck->dwFlags = 0; /* If we were looking for RIFF/LIST chunks, the final file position * is after the chunkid. If we were just looking for the chunk * it is after the cksize. So add 4 in RIFF/LIST case. */ if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST) mmioSeek(hmmio, lpck->dwDataOffset + sizeof(DWORD), SEEK_SET); else { mmioSeek(hmmio, lpck->dwDataOffset, SEEK_SET); lpck->fccType = 0; } TRACE("lpck: ckid=%.4s, cksize=%d, dwDataOffset=%d fccType=%08X (%.4s)!\n", (LPSTR)&lpck->ckid, lpck->cksize, lpck->dwDataOffset, lpck->fccType, srchType?(LPSTR)&lpck->fccType:""); return MMSYSERR_NOERROR; } /************************************************************************** * mmioAscend [WINMM.@] */ MMRESULT WINAPI mmioAscend(HMMIO hmmio, LPMMCKINFO lpck, UINT uFlags) { TRACE("(%p, %p, %04X);\n", hmmio, lpck, uFlags); if (lpck->dwFlags & MMIO_DIRTY) { DWORD dwOldPos, dwNewSize; TRACE("Chunk is dirty, checking if chunk's size is correct\n"); dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR); TRACE("dwOldPos=%d lpck->dwDataOffset = %d\n", dwOldPos, lpck->dwDataOffset); dwNewSize = dwOldPos - lpck->dwDataOffset; if (dwNewSize != lpck->cksize) { TRACE("Nope: lpck->cksize=%d dwNewSize=%d\n", lpck->cksize, dwNewSize); lpck->cksize = dwNewSize; /* pad odd size with 0 */ if (dwNewSize & 1) { char ch = 0; mmioWrite(hmmio, &ch, 1); } mmioSeek(hmmio, lpck->dwDataOffset - sizeof(DWORD), SEEK_SET); mmioWrite(hmmio, (LPSTR)&dwNewSize, sizeof(DWORD)); } lpck->dwFlags = 0; } mmioSeek(hmmio, lpck->dwDataOffset + ((lpck->cksize + 1) & ~1), SEEK_SET); return MMSYSERR_NOERROR; } /************************************************************************** * mmioCreateChunk [WINMM.@] */ MMRESULT WINAPI mmioCreateChunk(HMMIO hmmio, MMCKINFO* lpck, UINT uFlags) { DWORD dwOldPos; LONG size; LONG ix; TRACE("(%p, %p, %04X);\n", hmmio, lpck, uFlags); dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR); TRACE("dwOldPos=%d\n", dwOldPos); if (uFlags == MMIO_CREATELIST) lpck->ckid = FOURCC_LIST; else if (uFlags == MMIO_CREATERIFF) lpck->ckid = FOURCC_RIFF; TRACE("ckid=%.4s\n", (LPSTR)&lpck->ckid); size = 2 * sizeof(DWORD); lpck->dwDataOffset = dwOldPos + size; if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST) size += sizeof(DWORD); lpck->dwFlags = MMIO_DIRTY; ix = mmioWrite(hmmio, (LPSTR)lpck, size); TRACE("after mmioWrite ix = %d req = %d, errno = %d\n", ix, size, errno); if (ix < size) { mmioSeek(hmmio, dwOldPos, SEEK_SET); WARN("return CannotWrite\n"); return MMIOERR_CANNOTWRITE; } return MMSYSERR_NOERROR; } /************************************************************************** * mmioRenameA [WINMM.@] */ MMRESULT WINAPI mmioRenameA(LPCSTR szFileName, LPCSTR szNewFileName, const MMIOINFO* lpmmioinfo, DWORD dwFlags) { struct IOProcList* ioProc = NULL; struct IOProcList tmp; FOURCC fcc; TRACE("('%s', '%s', %p, %08X);\n", debugstr_a(szFileName), debugstr_a(szNewFileName), lpmmioinfo, dwFlags); /* If both params are NULL, then parse the file name */ if (lpmmioinfo && lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL) { fcc = MMIO_ParseExtA(szFileName); if (fcc) ioProc = MMIO_FindProcNode(fcc); } /* Handle any unhandled/error case from above. Assume DOS file */ if (!lpmmioinfo || (lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL && ioProc == NULL)) ioProc = MMIO_FindProcNode(FOURCC_DOS); /* if just the four character code is present, look up IO proc */ else if (lpmmioinfo->pIOProc == NULL) ioProc = MMIO_FindProcNode(lpmmioinfo->fccIOProc); else /* use relevant ioProc */ { ioProc = &tmp; tmp.fourCC = lpmmioinfo->fccIOProc; tmp.pIOProc = lpmmioinfo->pIOProc; tmp.type = MMIO_PROC_32A; tmp.count = 1; } /* FIXME: should we actually pass lpmmioinfo down the drain ??? * or make a copy of it because it's const ??? */ return send_message(ioProc, (MMIOINFO*)lpmmioinfo, MMIOM_RENAME, (LPARAM)szFileName, (LPARAM)szNewFileName, MMIO_PROC_32A); } /************************************************************************** * mmioRenameW [WINMM.@] */ MMRESULT WINAPI mmioRenameW(LPCWSTR szFileName, LPCWSTR szNewFileName, const MMIOINFO* lpmmioinfo, DWORD dwFlags) { LPSTR szFn = NULL; LPSTR sznFn = NULL; UINT ret = MMSYSERR_NOMEM; INT len; if (szFileName) { len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL ); szFn = HeapAlloc( GetProcessHeap(), 0, len ); if (!szFn) goto done; WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL ); } if (szNewFileName) { len = WideCharToMultiByte( CP_ACP, 0, szNewFileName, -1, NULL, 0, NULL, NULL ); sznFn = HeapAlloc( GetProcessHeap(), 0, len ); if (!sznFn) goto done; WideCharToMultiByte( CP_ACP, 0, szNewFileName, -1, sznFn, len, NULL, NULL ); } ret = mmioRenameA(szFn, sznFn, lpmmioinfo, dwFlags); done: HeapFree(GetProcessHeap(),0,szFn); HeapFree(GetProcessHeap(),0,sznFn); return ret; }