/* * MMSYSTEM mmio* functions * * Copyright 1993 Martin Ayotte * 1998-2003,2009 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 */ #include <stdarg.h> #include <string.h> #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "windef.h" #include "winbase.h" #include "mmsystem.h" #include "winternl.h" #include "wownt32.h" #include "winnls.h" #include "wine/winuser16.h" #include "winemm16.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(mmsys); /* ################################################### * # MMIO # * ################################################### */ #include <pshpack1.h> #define MMIO_MAX_THUNKS 32 static struct mmio_thunk { BYTE popl_eax; /* popl %eax (return address) */ BYTE pushl_func; /* pushl $pfn16 (16bit callback function) */ LPMMIOPROC16 pfn16; BYTE pushl_eax; /* pushl %eax */ BYTE jmp; /* ljmp MMIO_Callback1632 */ DWORD callback; HMMIO hMmio; /* Handle to 32bit mmio object */ SEGPTR segbuffer; /* actual segmented ptr to buffer */ } *MMIO_Thunks; #include <poppack.h> static CRITICAL_SECTION mmio_cs; static CRITICAL_SECTION_DEBUG mmio_critsect_debug = { 0, 0, &mmio_cs, { &mmio_critsect_debug.ProcessLocksList, &mmio_critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": mmsystem_mmio_cs") } }; static CRITICAL_SECTION mmio_cs = { &mmio_critsect_debug, -1, 0, 0, 0, 0 }; /**************************************************************** * MMIO_Map32To16 [INTERNAL] */ static LRESULT MMIO_Map32To16(DWORD wMsg, LPARAM* lp1, LPARAM* lp2) { switch (wMsg) { case MMIOM_CLOSE: case MMIOM_SEEK: /* nothing to do */ break; case MMIOM_OPEN: case MMIOM_READ: case MMIOM_WRITE: case MMIOM_WRITEFLUSH: *lp1 = MapLS( (void *)*lp1 ); break; case MMIOM_RENAME: *lp1 = MapLS( (void *)*lp1 ); *lp2 = MapLS( (void *)*lp2 ); break; default: if (wMsg < MMIOM_USER) TRACE("Not a mappable message (%d)\n", wMsg); } return MMSYSERR_NOERROR; } /**************************************************************** * MMIO_UnMap32To16 [INTERNAL] */ static LRESULT MMIO_UnMap32To16(DWORD wMsg, LPARAM lParam1, LPARAM lParam2, LPARAM lp1, LPARAM lp2) { switch (wMsg) { case MMIOM_CLOSE: case MMIOM_SEEK: /* nothing to do */ break; case MMIOM_OPEN: case MMIOM_READ: case MMIOM_WRITE: case MMIOM_WRITEFLUSH: UnMapLS( lp1 ); break; case MMIOM_RENAME: UnMapLS( lp1 ); UnMapLS( lp2 ); break; default: if (wMsg < MMIOM_USER) TRACE("Not a mappable message (%d)\n", wMsg); } return MMSYSERR_NOERROR; } /****************************************************************** * MMIO_Callback3216 * * */ static LRESULT MMIO_Callback3216(SEGPTR cb16, LPMMIOINFO lpmmioinfo, UINT uMessage, LPARAM lParam1, LPARAM lParam2) { DWORD result; MMIOINFO16 mmioInfo16; SEGPTR segmmioInfo16; LPARAM lp1 = lParam1, lp2 = lParam2; WORD args[7]; if (!cb16) return MMSYSERR_INVALPARAM; memset(&mmioInfo16, 0, sizeof(MMIOINFO16)); mmioInfo16.lDiskOffset = lpmmioinfo->lDiskOffset; mmioInfo16.adwInfo[0] = lpmmioinfo->adwInfo[0]; mmioInfo16.adwInfo[1] = lpmmioinfo->adwInfo[1]; mmioInfo16.adwInfo[2] = lpmmioinfo->adwInfo[2]; /* map (lParam1, lParam2) into (lp1, lp2) 32=>16 */ if ((result = MMIO_Map32To16(uMessage, &lp1, &lp2)) != MMSYSERR_NOERROR) return result; segmmioInfo16 = MapLS(&mmioInfo16); args[6] = HIWORD(segmmioInfo16); args[5] = LOWORD(segmmioInfo16); args[4] = uMessage; args[3] = HIWORD(lp1); args[2] = LOWORD(lp1); args[1] = HIWORD(lp2); args[0] = LOWORD(lp2); WOWCallback16Ex( cb16, WCB16_PASCAL, sizeof(args), args, &result ); UnMapLS(segmmioInfo16); MMIO_UnMap32To16(uMessage, lParam1, lParam2, lp1, lp2); lpmmioinfo->lDiskOffset = mmioInfo16.lDiskOffset; lpmmioinfo->adwInfo[0] = mmioInfo16.adwInfo[0]; lpmmioinfo->adwInfo[1] = mmioInfo16.adwInfo[1]; lpmmioinfo->adwInfo[2] = mmioInfo16.adwInfo[2]; return result; } /****************************************************************** * MMIO_AddThunk * */ static struct mmio_thunk* MMIO_AddThunk(LPMMIOPROC16 pfn16, HPSTR segbuf) { struct mmio_thunk* thunk; if (!MMIO_Thunks) { MMIO_Thunks = VirtualAlloc(NULL, MMIO_MAX_THUNKS * sizeof(*MMIO_Thunks), MEM_COMMIT, PAGE_EXECUTE_READWRITE); if (!MMIO_Thunks) return NULL; for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++) { thunk->popl_eax = 0x58; /* popl %eax */ thunk->pushl_func = 0x68; /* pushl $pfn16 */ thunk->pfn16 = 0; thunk->pushl_eax = 0x50; /* pushl %eax */ thunk->jmp = 0xe9; /* jmp MMIO_Callback3216 */ thunk->callback = (char *)MMIO_Callback3216 - (char *)(&thunk->callback + 1); thunk->hMmio = NULL; thunk->segbuffer = 0; } } for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++) { if (thunk->pfn16 == 0 && thunk->hMmio == NULL) { thunk->pfn16 = pfn16; thunk->hMmio = NULL; thunk->segbuffer = (SEGPTR)segbuf; return thunk; } } FIXME("Out of mmio-thunks. Bump MMIO_MAX_THUNKS\n"); return NULL; } /****************************************************************** * MMIO_HasThunk * */ static struct mmio_thunk* MMIO_HasThunk(HMMIO hmmio) { struct mmio_thunk* thunk; if (!MMIO_Thunks) return NULL; for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++) { if (thunk->hMmio == hmmio) return thunk; } return NULL; } /****************************************************************** * MMIO_SetSegmentedBuffer * */ static void MMIO_SetSegmentedBuffer(struct mmio_thunk* thunk, SEGPTR ptr, BOOL release) { if (release) UnMapLS(thunk->segbuffer); thunk->segbuffer = ptr; } /************************************************************************** * mmioOpen [MMSYSTEM.1210] */ HMMIO16 WINAPI mmioOpen16(LPSTR szFileName, MMIOINFO16* lpmmioinfo16, DWORD dwOpenFlags) { HMMIO ret; if (lpmmioinfo16) { MMIOINFO mmioinfo; struct mmio_thunk* thunk = NULL; memset(&mmioinfo, 0, sizeof(mmioinfo)); EnterCriticalSection(&mmio_cs); if (lpmmioinfo16->pIOProc && !(thunk = MMIO_AddThunk(lpmmioinfo16->pIOProc, lpmmioinfo16->pchBuffer))) { LeaveCriticalSection(&mmio_cs); return 0; } mmioinfo.dwFlags = lpmmioinfo16->dwFlags; mmioinfo.fccIOProc = lpmmioinfo16->fccIOProc; mmioinfo.pIOProc = (LPMMIOPROC)thunk; mmioinfo.cchBuffer = lpmmioinfo16->cchBuffer; mmioinfo.pchBuffer = MapSL((DWORD)lpmmioinfo16->pchBuffer); mmioinfo.adwInfo[0] = lpmmioinfo16->adwInfo[0]; /* if we don't have a file name, it's likely a passed open file descriptor */ if (!szFileName) mmioinfo.adwInfo[0] = (DWORD)DosFileHandleToWin32Handle(mmioinfo.adwInfo[0]); mmioinfo.adwInfo[1] = lpmmioinfo16->adwInfo[1]; mmioinfo.adwInfo[2] = lpmmioinfo16->adwInfo[2]; ret = mmioOpenA(szFileName, &mmioinfo, dwOpenFlags); if (thunk) { if (!ret || (dwOpenFlags & (MMIO_PARSE|MMIO_EXIST))) { thunk->pfn16 = NULL; thunk->hMmio = NULL; } else thunk->hMmio = ret; } LeaveCriticalSection(&mmio_cs); lpmmioinfo16->wErrorRet = mmioinfo.wErrorRet; lpmmioinfo16->hmmio = HMMIO_16(mmioinfo.hmmio); } else { ret = mmioOpenA(szFileName, NULL, dwOpenFlags); } return HMMIO_16(ret); } /************************************************************************** * mmioClose [MMSYSTEM.1211] */ MMRESULT16 WINAPI mmioClose16(HMMIO16 hmmio, UINT16 uFlags) { MMRESULT ret; EnterCriticalSection(&mmio_cs); ret = mmioClose(HMMIO_32(hmmio), uFlags); if (ret == MMSYSERR_NOERROR) { struct mmio_thunk* thunk; if ((thunk = MMIO_HasThunk(HMMIO_32(hmmio)))) { MMIO_SetSegmentedBuffer(thunk, 0, TRUE); thunk->pfn16 = NULL; thunk->hMmio = NULL; } } LeaveCriticalSection(&mmio_cs); return ret; } /************************************************************************** * mmioRead [MMSYSTEM.1212] */ LONG WINAPI mmioRead16(HMMIO16 hmmio, HPSTR pch, LONG cch) { return mmioRead(HMMIO_32(hmmio), pch, cch); } /************************************************************************** * mmioWrite [MMSYSTEM.1213] */ LONG WINAPI mmioWrite16(HMMIO16 hmmio, HPCSTR pch, LONG cch) { return mmioWrite(HMMIO_32(hmmio),pch,cch); } /************************************************************************** * mmioSeek [MMSYSTEM.1214] */ LONG WINAPI mmioSeek16(HMMIO16 hmmio, LONG lOffset, INT16 iOrigin) { return mmioSeek(HMMIO_32(hmmio), lOffset, iOrigin); } /************************************************************************** * mmioGetInfo [MMSYSTEM.1215] */ MMRESULT16 WINAPI mmioGetInfo16(HMMIO16 hmmio, MMIOINFO16* lpmmioinfo, UINT16 uFlags) { MMIOINFO mmioinfo; MMRESULT ret; struct mmio_thunk* thunk; TRACE("(0x%04x,%p,0x%08x)\n", hmmio, lpmmioinfo, uFlags); EnterCriticalSection(&mmio_cs); if ((thunk = MMIO_HasThunk(HMMIO_32(hmmio))) == NULL) { LeaveCriticalSection(&mmio_cs); return MMSYSERR_INVALHANDLE; } ret = mmioGetInfo(HMMIO_32(hmmio), &mmioinfo, uFlags); if (ret != MMSYSERR_NOERROR) { LeaveCriticalSection(&mmio_cs); return ret; } lpmmioinfo->dwFlags = mmioinfo.dwFlags; lpmmioinfo->fccIOProc = mmioinfo.fccIOProc; lpmmioinfo->pIOProc = thunk->pfn16; lpmmioinfo->wErrorRet = mmioinfo.wErrorRet; lpmmioinfo->hTask = HTASK_16(mmioinfo.hTask); lpmmioinfo->cchBuffer = mmioinfo.cchBuffer; lpmmioinfo->pchBuffer = (void*)thunk->segbuffer; lpmmioinfo->pchNext = (void*)(thunk->segbuffer + (mmioinfo.pchNext - mmioinfo.pchBuffer)); lpmmioinfo->pchEndRead = (void*)(thunk->segbuffer + (mmioinfo.pchEndRead - mmioinfo.pchBuffer)); lpmmioinfo->pchEndWrite = (void*)(thunk->segbuffer + (mmioinfo.pchEndWrite - mmioinfo.pchBuffer)); lpmmioinfo->lBufOffset = mmioinfo.lBufOffset; lpmmioinfo->lDiskOffset = mmioinfo.lDiskOffset; lpmmioinfo->adwInfo[0] = mmioinfo.adwInfo[0]; lpmmioinfo->adwInfo[1] = mmioinfo.adwInfo[1]; lpmmioinfo->adwInfo[2] = mmioinfo.adwInfo[2]; lpmmioinfo->dwReserved1 = 0; lpmmioinfo->dwReserved2 = 0; lpmmioinfo->hmmio = HMMIO_16(mmioinfo.hmmio); LeaveCriticalSection(&mmio_cs); return MMSYSERR_NOERROR; } /************************************************************************** * mmioSetInfo [MMSYSTEM.1216] */ MMRESULT16 WINAPI mmioSetInfo16(HMMIO16 hmmio, const MMIOINFO16* lpmmioinfo, UINT16 uFlags) { MMIOINFO mmioinfo; MMRESULT ret; TRACE("(0x%04x,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags); ret = mmioGetInfo(HMMIO_32(hmmio), &mmioinfo, 0); if (ret != MMSYSERR_NOERROR) return ret; /* check if seg and lin buffers are the same */ if (mmioinfo.cchBuffer != lpmmioinfo->cchBuffer || mmioinfo.pchBuffer != MapSL((DWORD)lpmmioinfo->pchBuffer)) return MMSYSERR_INVALPARAM; /* check pointers coherence */ if (lpmmioinfo->pchNext < lpmmioinfo->pchBuffer || lpmmioinfo->pchNext > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer || lpmmioinfo->pchEndRead < lpmmioinfo->pchBuffer || lpmmioinfo->pchEndRead > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer || lpmmioinfo->pchEndWrite < lpmmioinfo->pchBuffer || lpmmioinfo->pchEndWrite > lpmmioinfo->pchBuffer + lpmmioinfo->cchBuffer) return MMSYSERR_INVALPARAM; mmioinfo.pchNext = mmioinfo.pchBuffer + (lpmmioinfo->pchNext - lpmmioinfo->pchBuffer); mmioinfo.pchEndRead = mmioinfo.pchBuffer + (lpmmioinfo->pchEndRead - lpmmioinfo->pchBuffer); mmioinfo.pchEndWrite = mmioinfo.pchBuffer + (lpmmioinfo->pchEndWrite - lpmmioinfo->pchBuffer); return mmioSetInfo(HMMIO_32(hmmio), &mmioinfo, uFlags); } /************************************************************************** * mmioSetBuffer [MMSYSTEM.1217] */ MMRESULT16 WINAPI mmioSetBuffer16(HMMIO16 hmmio, LPSTR pchBuffer, LONG cchBuffer, UINT16 uFlags) { MMRESULT ret = mmioSetBuffer(HMMIO_32(hmmio), MapSL((DWORD)pchBuffer), cchBuffer, uFlags); if (ret == MMSYSERR_NOERROR) { struct mmio_thunk* thunk; if ((thunk = MMIO_HasThunk(HMMIO_32(hmmio))) == NULL) { FIXME("really ?\n"); return MMSYSERR_INVALHANDLE; } MMIO_SetSegmentedBuffer(thunk, (DWORD)pchBuffer, TRUE); } else UnMapLS((DWORD)pchBuffer); return ret; } /************************************************************************** * mmioFlush [MMSYSTEM.1218] */ MMRESULT16 WINAPI mmioFlush16(HMMIO16 hmmio, UINT16 uFlags) { return mmioFlush(HMMIO_32(hmmio), uFlags); } /*********************************************************************** * mmioAdvance [MMSYSTEM.1219] */ MMRESULT16 WINAPI mmioAdvance16(HMMIO16 hmmio, MMIOINFO16* lpmmioinfo, UINT16 uFlags) { MMIOINFO mmioinfo; LRESULT ret; /* WARNING: this heavily relies on mmioAdvance implementation (for choosing which * fields to init */ if (lpmmioinfo) { mmioinfo.pchBuffer = MapSL((DWORD)lpmmioinfo->pchBuffer); mmioinfo.pchNext = MapSL((DWORD)lpmmioinfo->pchNext); mmioinfo.dwFlags = lpmmioinfo->dwFlags; mmioinfo.lBufOffset = lpmmioinfo->lBufOffset; ret = mmioAdvance(HMMIO_32(hmmio), &mmioinfo, uFlags); } else ret = mmioAdvance(HMMIO_32(hmmio), NULL, uFlags); if (ret != MMSYSERR_NOERROR) return ret; if (lpmmioinfo) { lpmmioinfo->dwFlags = mmioinfo.dwFlags; lpmmioinfo->pchNext = (void*)(lpmmioinfo->pchBuffer + (mmioinfo.pchNext - mmioinfo.pchBuffer)); lpmmioinfo->pchEndRead = (void*)(lpmmioinfo->pchBuffer + (mmioinfo.pchEndRead - mmioinfo.pchBuffer)); lpmmioinfo->pchEndWrite = (void*)(lpmmioinfo->pchBuffer + (mmioinfo.pchEndWrite - mmioinfo.pchBuffer)); lpmmioinfo->lBufOffset = mmioinfo.lBufOffset; lpmmioinfo->lDiskOffset = mmioinfo.lDiskOffset; } return MMSYSERR_NOERROR; } /************************************************************************** * mmioStringToFOURCC [MMSYSTEM.1220] */ FOURCC WINAPI mmioStringToFOURCC16(LPCSTR sz, UINT16 uFlags) { return mmioStringToFOURCCA(sz, uFlags); } /************************************************************************** * mmioInstallIOProc [MMSYSTEM.1221] */ LPMMIOPROC16 WINAPI mmioInstallIOProc16(FOURCC fccIOProc, LPMMIOPROC16 pIOProc, DWORD dwFlags) { struct mmio_thunk* thunk = NULL; LPMMIOPROC pIOProc32; EnterCriticalSection(&mmio_cs); switch (dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) { case MMIO_INSTALLPROC: if (!(thunk = MMIO_AddThunk(pIOProc, NULL))) { LeaveCriticalSection(&mmio_cs); return NULL; } if (!mmioInstallIOProcA(fccIOProc, (LPMMIOPROC)thunk, dwFlags)) { thunk->pfn16 = NULL; pIOProc = NULL; } break; case MMIO_REMOVEPROC: if (MMIO_Thunks) { for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++) { if (thunk->pfn16 == pIOProc && thunk->segbuffer == 0) { if (mmioInstallIOProcA(fccIOProc, (LPMMIOPROC)thunk, dwFlags)) thunk->pfn16 = NULL; else pIOProc = NULL; break; } } } if (!thunk) pIOProc = NULL; break; case MMIO_FINDPROC: if ((pIOProc32 = mmioInstallIOProcA(fccIOProc, NULL, dwFlags)) && MMIO_Thunks) { for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++) { if ((LPMMIOPROC)thunk == pIOProc32) { pIOProc = thunk->pfn16; break; } } } break; default: WINE_FIXME("Unsupported flags %08x\n", dwFlags); pIOProc = NULL; } LeaveCriticalSection(&mmio_cs); return pIOProc; } /************************************************************************** * mmioSendMessage [MMSYSTEM.1222] */ LRESULT WINAPI mmioSendMessage16(HMMIO16 hmmio, UINT16 uMessage, LPARAM lParam1, LPARAM lParam2) { struct mmio_thunk* thunk; if ((thunk = MMIO_HasThunk(HMMIO_32(hmmio)))) { MMIOINFO mmioinfo; if (mmioGetInfo(HMMIO_32(hmmio), &mmioinfo, 0) == MMSYSERR_NOERROR) { return MMIO_Callback3216((SEGPTR)thunk->pfn16, &mmioinfo, uMessage, lParam1, lParam2); } return MMSYSERR_INVALHANDLE; } else { /* FIXME: we need to map lParam1 and lParam2 to 32bit entities */ return mmioSendMessage(HMMIO_32(hmmio), uMessage, lParam1, lParam2); } } /************************************************************************** * mmioDescend [MMSYSTEM.1223] */ MMRESULT16 WINAPI mmioDescend16(HMMIO16 hmmio, LPMMCKINFO lpck, const MMCKINFO* lpckParent, UINT16 uFlags) { return mmioDescend(HMMIO_32(hmmio), lpck, lpckParent, uFlags); } /************************************************************************** * mmioAscend [MMSYSTEM.1224] */ MMRESULT16 WINAPI mmioAscend16(HMMIO16 hmmio, MMCKINFO* lpck, UINT16 uFlags) { return mmioAscend(HMMIO_32(hmmio),lpck,uFlags); } /************************************************************************** * mmioCreateChunk [MMSYSTEM.1225] */ MMRESULT16 WINAPI mmioCreateChunk16(HMMIO16 hmmio, MMCKINFO* lpck, UINT16 uFlags) { return mmioCreateChunk(HMMIO_32(hmmio), lpck, uFlags); } /************************************************************************** * mmioRename [MMSYSTEM.1226] */ MMRESULT16 WINAPI mmioRename16(LPCSTR szFileName, LPCSTR szNewFileName, MMIOINFO16* lpmmioinfo, DWORD dwRenameFlags) { BOOL inst = FALSE; MMRESULT ret; MMIOINFO mmioinfo; if (lpmmioinfo != NULL && lpmmioinfo->pIOProc != NULL && lpmmioinfo->fccIOProc == 0) { FIXME("Can't handle this case yet\n"); return MMSYSERR_ERROR; } /* this is a bit hacky, but it'll work if we get a fourCC code or nothing. * but a non installed ioproc without a fourcc won't do */ if (lpmmioinfo && lpmmioinfo->fccIOProc && lpmmioinfo->pIOProc) { mmioInstallIOProc16(lpmmioinfo->fccIOProc, lpmmioinfo->pIOProc, MMIO_INSTALLPROC); inst = TRUE; } memset(&mmioinfo, 0, sizeof(mmioinfo)); mmioinfo.fccIOProc = lpmmioinfo->fccIOProc; ret = mmioRenameA(szFileName, szNewFileName, &mmioinfo, dwRenameFlags); if (inst) { mmioInstallIOProc16(lpmmioinfo->fccIOProc, NULL, MMIO_REMOVEPROC); } return ret; }