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Sweden-Number/multimedia/mmio.c

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/*
* MMIO functions
*
* Copyright 1998 Andrew Taylor
* Copyright 1998 Ove Kåven
*
*/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "windef.h"
#include "wine/winbase16.h"
#include "heap.h"
#include "file.h"
#include "mmsystem.h"
#include "debug.h"
#include "xmalloc.h"
/**************************************************************************
* mmioDosIOProc [internal]
*/
static LRESULT mmioDosIOProc(LPMMIOINFO16 lpmmioinfo, UINT16 uMessage, LPARAM lParam1, LPARAM lParam2) {
TRACE(mmio, "(%p, %X, %ld, %ld);\n", lpmmioinfo, uMessage, lParam1, lParam2);
switch (uMessage) {
case MMIOM_OPEN: {
/* Parameters:
* lParam1 = szFileName parameter from mmioOpen
* lParam2 = reserved (we use it for 16-bitness)
* Returns: zero on success, error code on error
* NOTE: lDiskOffset automatically set to zero
*/
OFSTRUCT ofs;
LPSTR szFileName = (LPSTR) lParam1;
if (lpmmioinfo->dwFlags & MMIO_GETTEMP) {
FIXME(mmio, "MMIO_GETTEMP not implemented\n");
return MMIOERR_CANNOTOPEN;
}
/* if filename NULL, assume open file handle in adwInfo[0] */
if (!szFileName) {
if (lParam2) lpmmioinfo->adwInfo[0] =
FILE_GetHandle(lpmmioinfo->adwInfo[0]);
return 0;
}
lpmmioinfo->adwInfo[0] =
(DWORD) OpenFile(szFileName, &ofs, lpmmioinfo->dwFlags);
if (lpmmioinfo->adwInfo[0] == -1)
return MMIOERR_CANNOTOPEN;
return 0;
}
case MMIOM_CLOSE: {
/* Parameters:
* lParam1 = wFlags parameter from mmioClose
* lParam2 = unused
* Returns: zero on success, error code on error
*/
UINT16 uFlags = (UINT16) lParam1;
if (uFlags & MMIO_FHOPEN)
return 0;
_lclose((HFILE)lpmmioinfo->adwInfo[0]);
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
*/
HPSTR pch = (HPSTR) lParam1;
LONG cch = (LONG) lParam2;
LONG count;
count = _lread((HFILE)lpmmioinfo->adwInfo[0], pch, cch);
if (count != -1)
lpmmioinfo->lDiskOffset += count;
return count;
}
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
*/
HPSTR pch = (HPSTR) lParam1;
LONG cch = (LONG) lParam2;
LONG count;
count = _hwrite((HFILE)lpmmioinfo->adwInfo[0], pch, cch);
if (count != -1)
lpmmioinfo->lDiskOffset += count;
return count;
}
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
*/
LONG Offset = (LONG) lParam1;
LONG Whence = (LONG) lParam2;
LONG pos;
pos = _llseek((HFILE)lpmmioinfo->adwInfo[0], Offset, Whence);
if (pos != -1)
lpmmioinfo->lDiskOffset = pos;
return pos;
}
case MMIOM_RENAME: {
/* Parameters:
* lParam1 = old name
* lParam2 = new name
* Returns: zero on success, non-zero on failure
*/
FIXME(mmio, "MMIOM_RENAME unimplemented\n");
return MMIOERR_FILENOTFOUND;
}
default:
FIXME(mmio, "unexpected message %u\n", uMessage);
return 0;
}
return 0;
}
/**************************************************************************
* mmioMemIOProc [internal]
*/
static LRESULT mmioMemIOProc(LPMMIOINFO16 lpmmioinfo, UINT16 uMessage, LPARAM lParam1, LPARAM lParam2) {
TRACE(mmio,"(%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 (we use it for 16-bitness)
* Returns: zero on success, error code on error
* NOTE: lDiskOffset automatically set to zero
*/
if (!(lpmmioinfo->dwFlags & MMIO_CREATE))
lpmmioinfo->pchEndRead = lpmmioinfo->pchEndWrite;
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
*/
/* HPSTR pch = (HPSTR) lParam1; */
/* LONG cch = (LONG) lParam2; */
FIXME(mmio,"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
*/
/* HPSTR pch = (HPSTR) lParam1; */
/* LONG cch = (LONG) lParam2; */
FIXME(mmio,"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
*/
/* LONG Offset = (LONG) lParam1; */
/* LONG Whence = (LONG) lParam2; */
FIXME(mmio,"MMIOM_SEEK on memory files should not occur, buffer may be lost!\n");
return -1;
}
default:
FIXME(mmio, "unexpected message %u\n", uMessage);
return 0;
}
return 0;
}
/**************************************************************************
* MMIO_Open [internal]
*/
static HMMIO16 MMIO_Open(LPSTR szFileName, MMIOINFO16 * lpmmioinfo,
DWORD dwOpenFlags, int use16)
{
LPMMIOINFO16 lpmminfo;
HMMIO16 hmmio;
UINT16 result;
TRACE(mmio, "('%s', %p, %08lX);\n", szFileName, lpmmioinfo, dwOpenFlags);
hmmio = GlobalAlloc16(GHND, sizeof(MMIOINFO16));
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL)
return 0;
memset(lpmminfo, 0, sizeof(MMIOINFO16));
/* assume DOS file if not otherwise specified */
if (!lpmmioinfo ||
(lpmmioinfo->fccIOProc == 0 && lpmmioinfo->pIOProc == NULL)) {
lpmminfo->fccIOProc = FOURCC_DOS;
lpmminfo->pIOProc = (LPMMIOPROC16) mmioDosIOProc;
}
/* if just the four character code is present, look up IO proc */
else if (lpmmioinfo->pIOProc == NULL) {
lpmminfo->fccIOProc = lpmmioinfo->fccIOProc;
lpmminfo->pIOProc = mmioInstallIOProc16(lpmmioinfo->fccIOProc, NULL, MMIO_FINDPROC);
}
/* if IO proc specified, use it and specified four character code */
else {
lpmminfo->fccIOProc = lpmmioinfo->fccIOProc;
lpmminfo->pIOProc = lpmmioinfo->pIOProc;
}
if (dwOpenFlags & MMIO_ALLOCBUF) {
if ((result = mmioSetBuffer16(hmmio, NULL, MMIO_DEFAULTBUFFER, 0))) {
if (lpmmioinfo)
lpmmioinfo->wErrorRet = result;
return 0;
}
} else
if (lpmminfo->fccIOProc == FOURCC_MEM) {
if ((result = mmioSetBuffer16(hmmio, lpmmioinfo->pchBuffer, lpmmioinfo->cchBuffer, 0))) {
if (lpmmioinfo)
lpmmioinfo->wErrorRet = result;
return 0;
}
}
lpmminfo->dwFlags = dwOpenFlags;
lpmminfo->hmmio = hmmio;
/* call IO proc to actually open file */
result = (UINT16) mmioSendMessage(hmmio, MMIOM_OPEN, (LPARAM) szFileName, (LPARAM) use16);
GlobalUnlock16(hmmio);
if (result != 0) {
GlobalFree16(hmmio);
return 0;
}
return hmmio;
}
/**************************************************************************
* mmioOpenW [WINMM.123]
*/
HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO * lpmmioinfo,
DWORD dwOpenFlags)
{
LPSTR szFn = HEAP_strdupWtoA(GetProcessHeap(),0,szFileName);
HMMIO ret = MMIO_Open(szFn,(LPMMIOINFO16)lpmmioinfo,dwOpenFlags,FALSE);
HeapFree(GetProcessHeap(),0,szFn);
return ret;
}
/**************************************************************************
* mmioOpenA [WINMM.122]
*/
HMMIO WINAPI mmioOpenA(LPSTR szFileName, MMIOINFO * lpmmioinfo,
DWORD dwOpenFlags)
{
return MMIO_Open(szFileName,(LPMMIOINFO16)lpmmioinfo,dwOpenFlags,FALSE);
}
/**************************************************************************
* mmioOpen [MMSYSTEM.1210]
*/
HMMIO16 WINAPI mmioOpen16(LPSTR szFileName, MMIOINFO16 * lpmmioinfo,
DWORD dwOpenFlags)
{
return MMIO_Open(szFileName,(LPMMIOINFO16)lpmmioinfo,dwOpenFlags,TRUE);
}
/**************************************************************************
* mmioClose [WINMM.114]
*/
MMRESULT WINAPI mmioClose(HMMIO hmmio, UINT uFlags)
{
LPMMIOINFO16 lpmminfo;
MMRESULT result;
TRACE(mmio, "(%04X, %04X);\n", hmmio, uFlags);
lpmminfo = (LPMMIOINFO16) GlobalLock16(hmmio);
if (lpmminfo == NULL)
return 0;
/* flush the file - if error reported, ignore */
if (mmioFlush(hmmio, MMIO_EMPTYBUF) != 0)
lpmminfo->dwFlags &= ~MMIO_DIRTY;
result = mmioSendMessage(hmmio,MMIOM_CLOSE,(LPARAM)uFlags,(LPARAM)0);
mmioSetBuffer16(hmmio, NULL, 0, 0);
GlobalUnlock16(hmmio);
GlobalFree16(hmmio);
return result;
}
/**************************************************************************
* mmioClose [MMSYSTEM.1211]
*/
MMRESULT16 WINAPI mmioClose16(HMMIO16 hmmio, UINT16 uFlags)
{
return mmioClose(hmmio,uFlags);
}
/**************************************************************************
* mmioRead [WINMM.124]
*/
LONG WINAPI mmioRead(HMMIO hmmio, HPSTR pch, LONG cch)
{
LONG count;
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "(%04X, %p, %ld);\n", hmmio, pch, cch);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL)
return -1;
if (lpmminfo->pchNext != lpmminfo->pchEndRead) {
count = lpmminfo->pchEndRead - lpmminfo->pchNext;
if (count > cch || count < 0) count = cch;
memcpy(pch, lpmminfo->pchNext, count);
lpmminfo->pchNext += count;
pch += count;
cch -= count;
} else
count = 0;
if (cch&&(lpmminfo->fccIOProc!=FOURCC_MEM)) {
if (lpmminfo->cchBuffer) {
mmioFlush(hmmio, MMIO_EMPTYBUF);
while (cch) {
LONG size;
lpmminfo->lBufOffset = lpmminfo->lDiskOffset;
lpmminfo->pchNext = lpmminfo->pchBuffer;
lpmminfo->pchEndRead = lpmminfo->pchBuffer;
size = mmioSendMessage(hmmio, MMIOM_READ,
(LPARAM) lpmminfo->pchBuffer,
(LPARAM) lpmminfo->cchBuffer);
if (size<=0) break;
lpmminfo->pchEndRead = lpmminfo->pchBuffer + size;
if (size > cch) size = cch;
memcpy(pch, lpmminfo->pchNext, size);
lpmminfo->pchNext += size;
pch += size;
cch -= size;
count += size;
}
} else {
count += mmioSendMessage(hmmio, MMIOM_READ, (LPARAM) pch, (LPARAM) cch);
if (count>0) lpmminfo->lBufOffset += count;
}
}
GlobalUnlock16(hmmio);
TRACE(mmio, "count=%ld\n", count);
return count;
}
/**************************************************************************
* mmioRead [MMSYSTEM.1212]
*/
LONG WINAPI mmioRead16(HMMIO16 hmmio, HPSTR pch, LONG cch)
{
return mmioRead(hmmio,pch,cch);
}
/**************************************************************************
* mmioWrite [WINMM.133]
*/
LONG WINAPI mmioWrite(HMMIO hmmio, HPCSTR pch, LONG cch)
{
LONG count;
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "(%04X, %p, %ld);\n", hmmio, pch, cch);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL)
return -1;
if (lpmminfo->cchBuffer) {
count = 0;
while (cch) {
if (lpmminfo->pchNext != lpmminfo->pchEndWrite) {
count = lpmminfo->pchEndWrite - lpmminfo->pchNext;
if (count > cch || count < 0) count = cch;
memcpy(lpmminfo->pchNext, pch, count);
lpmminfo->pchNext += count;
pch += count;
cch -= count;
lpmminfo->dwFlags |= MMIO_DIRTY;
} else
if (lpmminfo->fccIOProc==FOURCC_MEM) {
if (lpmminfo->adwInfo[0]) {
/* from where would we get the memory handle? */
FIXME(mmio, "memory file expansion not implemented!\n");
} else break;
}
if (lpmminfo->pchNext == lpmminfo->pchEndWrite
&& mmioFlush(hmmio, MMIO_EMPTYBUF)) break;
}
} else {
count = mmioSendMessage(hmmio, MMIOM_WRITE, (LPARAM) pch, (LPARAM) cch);
lpmminfo->lBufOffset = lpmminfo->lDiskOffset;
}
GlobalUnlock16(hmmio);
TRACE(mmio, "count=%ld\n", count);
return count;
}
/**************************************************************************
* mmioWrite [MMSYSTEM.1213]
*/
LONG WINAPI mmioWrite16(HMMIO16 hmmio, HPCSTR pch, LONG cch)
{
return mmioWrite(hmmio,pch,cch);
}
/**************************************************************************
* mmioSeek [MMSYSTEM.1214]
*/
LONG WINAPI mmioSeek(HMMIO hmmio, LONG lOffset, INT iOrigin)
{
int offset;
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "(%04X, %08lX, %d);\n", hmmio, lOffset, iOrigin);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL)
return -1;
offset = (iOrigin==SEEK_SET)?(lOffset - lpmminfo->lBufOffset):
(iOrigin==SEEK_CUR)?(lOffset +
(lpmminfo->pchNext - lpmminfo->pchBuffer)):-1;
if ((lpmminfo->cchBuffer<0)||
((offset>=0)&&(offset<=(lpmminfo->pchEndRead-lpmminfo->pchBuffer)))) {
lpmminfo->pchNext = lpmminfo->pchBuffer + offset;
GlobalUnlock16(hmmio);
return lpmminfo->lBufOffset + offset;
}
if ((lpmminfo->fccIOProc==FOURCC_MEM)||mmioFlush(hmmio, MMIO_EMPTYBUF)) {
GlobalUnlock16(hmmio);
return -1;
}
offset = mmioSendMessage(hmmio, MMIOM_SEEK, (LPARAM) lOffset, (LPARAM) iOrigin);
lpmminfo->lBufOffset = lpmminfo->lDiskOffset;
GlobalUnlock16(hmmio);
return offset;
}
/**************************************************************************
* mmioSeek [MMSYSTEM.1214]
*/
LONG WINAPI mmioSeek16(HMMIO16 hmmio, LONG lOffset, INT16 iOrigin)
{
return mmioSeek(hmmio,lOffset,iOrigin);
}
/**************************************************************************
* mmioGetInfo [MMSYSTEM.1215]
*/
UINT16 WINAPI mmioGetInfo16(HMMIO16 hmmio, MMIOINFO16 * lpmmioinfo, UINT16 uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "mmioGetInfo\n");
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
memcpy(lpmmioinfo, lpmminfo, sizeof(MMIOINFO16));
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioGetInfo [WINMM.118]
*/
UINT WINAPI mmioGetInfo(HMMIO hmmio, MMIOINFO*lpmmioinfo, UINT uFlags)
{
MMIOINFO16 mmioinfo;
LPMMIOINFO16 lpmminfo=&mmioinfo;
UINT16 ret;
TRACE(mmio, "(0x%04x,%p,0x%08x)\n",hmmio,lpmmioinfo,uFlags);
ret = mmioGetInfo16(hmmio,&mmioinfo,uFlags);
if (!ret)
return 0;
lpmmioinfo->dwFlags = lpmminfo->dwFlags;
lpmmioinfo->fccIOProc = lpmminfo->fccIOProc;
lpmmioinfo->pIOProc = (LPMMIOPROC)lpmminfo->pIOProc;
lpmmioinfo->wErrorRet = lpmminfo->wErrorRet;
lpmmioinfo->htask = lpmminfo->htask;
lpmmioinfo->cchBuffer = lpmminfo->cchBuffer;
lpmmioinfo->pchBuffer = lpmminfo->pchBuffer;
lpmmioinfo->pchNext = lpmminfo->pchNext;
lpmmioinfo->pchEndRead = lpmminfo->pchEndRead;
lpmmioinfo->pchEndWrite = lpmminfo->pchEndWrite;
lpmmioinfo->lBufOffset = lpmminfo->lBufOffset;
lpmmioinfo->lDiskOffset = lpmminfo->lDiskOffset;
memcpy(lpmmioinfo->adwInfo,lpmminfo->adwInfo,sizeof(lpmminfo->adwInfo));
lpmmioinfo->dwReserved1 = lpmminfo->dwReserved1;
lpmmioinfo->dwReserved2 = lpmminfo->dwReserved2;
lpmmioinfo->hmmio = lpmminfo->hmmio;
return 0;
}
/**************************************************************************
* mmioSetInfo [MMSYSTEM.1216]
*/
UINT16 WINAPI mmioSetInfo16(HMMIO16 hmmio, const MMIOINFO16 * lpmmioinfo, UINT16 uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "mmioSetInfo\n");
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
lpmminfo->pchNext = lpmmioinfo->pchNext;
lpmminfo->pchEndRead = lpmmioinfo->pchEndRead;
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioSetInfo [WINMM.130]
*/
UINT WINAPI mmioSetInfo(HMMIO hmmio, const MMIOINFO * lpmmioinfo, UINT uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "mmioSetInfo\n");
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
lpmminfo->pchNext = lpmmioinfo->pchNext;
lpmminfo->pchEndRead = lpmmioinfo->pchEndRead;
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioSetBuffer [WINMM.129]
*/
UINT WINAPI mmioSetBuffer(HMMIO hmmio, LPSTR pchBuffer,
LONG cchBuffer, UINT uFlags)
{
LPMMIOINFO16 lpmminfo;
if (mmioFlush(hmmio, MMIO_EMPTYBUF) != 0)
return MMIOERR_CANNOTWRITE;
TRACE(mmio, "(hmmio=%04x, pchBuf=%p, cchBuf=%ld, uFlags=%#08x)\n",
hmmio, pchBuffer, cchBuffer, uFlags);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
if ((!cchBuffer || pchBuffer) && lpmminfo->dwFlags&MMIO_ALLOCBUF) {
GlobalUnlock16(lpmminfo->dwReserved1);
GlobalFree16(lpmminfo->dwReserved1);
lpmminfo->dwFlags &= ~MMIO_ALLOCBUF;
}
if (pchBuffer) {
lpmminfo->pchBuffer = pchBuffer;
} else if (lpmminfo->dwFlags&MMIO_ALLOCBUF) {
HGLOBAL16 hNewBuf;
GlobalUnlock16(lpmminfo->dwReserved1);
hNewBuf = GlobalReAlloc16(lpmminfo->dwReserved1, cchBuffer, 0);
if (!hNewBuf) {
/* FIXME: this assumes the memory block didn't move */
GlobalLock16(lpmminfo->dwReserved1);
GlobalUnlock16(hmmio);
return MMIOERR_OUTOFMEMORY;
}
lpmminfo->dwReserved1 = hNewBuf;
lpmminfo->pchBuffer = GlobalLock16(hNewBuf);
} else if (cchBuffer) {
HGLOBAL16 hNewBuf = GlobalAlloc16(GMEM_MOVEABLE, cchBuffer);
if (!hNewBuf) {
GlobalUnlock16(hmmio);
return MMIOERR_OUTOFMEMORY;
}
lpmminfo->dwReserved1 = hNewBuf;
lpmminfo->pchBuffer = GlobalLock16(hNewBuf);
lpmminfo->dwFlags |= MMIO_ALLOCBUF;
} else
lpmminfo->pchBuffer = NULL;
lpmminfo->cchBuffer = cchBuffer;
lpmminfo->pchNext = lpmminfo->pchBuffer;
lpmminfo->pchEndRead = lpmminfo->pchBuffer;
lpmminfo->pchEndWrite = lpmminfo->pchBuffer + cchBuffer;
lpmminfo->lBufOffset = 0;
GlobalUnlock16(hmmio);
return (UINT16) 0;
}
/**************************************************************************
* mmioSetBuffer [MMSYSTEM.1217]
*/
UINT16 WINAPI mmioSetBuffer16(HMMIO16 hmmio, LPSTR pchBuffer,
LONG cchBuffer, UINT16 uFlags)
{
return mmioSetBuffer(hmmio, pchBuffer, cchBuffer, uFlags);
}
/**************************************************************************
* mmioFlush [WINMM.117]
*/
UINT WINAPI mmioFlush(HMMIO hmmio, UINT uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "(%04X, %04X)\n", hmmio, uFlags);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
if ((!lpmminfo->cchBuffer)||(lpmminfo->fccIOProc==FOURCC_MEM)) {
GlobalUnlock16(hmmio);
return 0;
}
/* not quite sure what to do here, but I'll guess */
if (lpmminfo->dwFlags & MMIO_DIRTY) {
mmioSendMessage(hmmio, MMIOM_SEEK,
(LPARAM) lpmminfo->lBufOffset,
(LPARAM) SEEK_SET);
mmioSendMessage(hmmio, MMIOM_WRITE,
(LPARAM) lpmminfo->pchBuffer,
(LPARAM) (lpmminfo->pchNext - lpmminfo->pchBuffer) );
lpmminfo->dwFlags &= ~MMIO_DIRTY;
}
if (uFlags & MMIO_EMPTYBUF) {
/* seems Windows doesn't do any seeking here, hopefully this
won't matter, otherwise a slight rewrite is necessary */
mmioSendMessage(hmmio, MMIOM_SEEK,
(LPARAM) (lpmminfo->lBufOffset +
(lpmminfo->pchNext - lpmminfo->pchBuffer)),
(LPARAM) SEEK_SET);
lpmminfo->pchNext = lpmminfo->pchBuffer;
lpmminfo->pchEndRead = lpmminfo->pchBuffer;
lpmminfo->lBufOffset = lpmminfo->lDiskOffset;
}
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioFlush [MMSYSTEM.1218]
*/
UINT16 WINAPI mmioFlush16(HMMIO16 hmmio, UINT16 uFlags)
{
return mmioFlush(hmmio,uFlags);
}
/**************************************************************************
* mmioAdvance [MMSYSTEM.1219]
*/
UINT WINAPI mmioAdvance(HMMIO hmmio,MMIOINFO*lpmmioinfo,UINT uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "mmioAdvance\n");
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
if (!lpmminfo->cchBuffer) {
GlobalUnlock16(hmmio);
return MMIOERR_UNBUFFERED;
}
lpmminfo->pchNext = lpmmioinfo->pchNext;
if (mmioFlush(hmmio, MMIO_EMPTYBUF)) {
GlobalUnlock16(hmmio);
return MMIOERR_CANNOTWRITE;
}
if (uFlags == MMIO_READ)
lpmmioinfo->pchEndRead = lpmmioinfo->pchBuffer +
mmioSendMessage(hmmio, MMIOM_READ,
(LPARAM) lpmmioinfo->pchBuffer,
(LPARAM) lpmmioinfo->cchBuffer);
#if 0 /* mmioFlush already did the writing */
if (uFlags == MMIO_WRITE)
mmioSendMessage(hmmio, MMIOM_WRITE,
(LPARAM) lpmmioinfo->pchBuffer,
(LPARAM) lpmmioinfo->cchBuffer);
#endif
lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioAdvance [MMSYSTEM.1219]
*/
UINT16 WINAPI mmioAdvance16(HMMIO16 hmmio,MMIOINFO16*lpmmioinfo,UINT16 uFlags)
{
LPMMIOINFO16 lpmminfo;
TRACE(mmio, "mmioAdvance\n");
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo == NULL) return 0;
if (!lpmminfo->cchBuffer) {
GlobalUnlock16(hmmio);
return MMIOERR_UNBUFFERED;
}
lpmminfo->pchNext = lpmmioinfo->pchNext;
if (mmioFlush(hmmio, MMIO_EMPTYBUF)) {
GlobalUnlock16(hmmio);
return MMIOERR_CANNOTWRITE;
}
if (uFlags == MMIO_READ)
lpmmioinfo->pchEndRead = lpmmioinfo->pchBuffer +
mmioSendMessage(hmmio, MMIOM_READ,
(LPARAM) lpmmioinfo->pchBuffer,
(LPARAM) lpmmioinfo->cchBuffer);
#if 0 /* mmioFlush already did the writing */
if (uFlags == MMIO_WRITE)
mmioSendMessage(hmmio, MMIOM_WRITE,
(LPARAM) lpmmioinfo->pchBuffer,
(LPARAM) lpmmioinfo->cchBuffer);
#endif
lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
GlobalUnlock16(hmmio);
return 0;
}
/**************************************************************************
* mmioStringToFOURCCA [WINMM.131]
*/
FOURCC WINAPI mmioStringToFOURCCA(LPCSTR sz, UINT uFlags)
{
return mmioStringToFOURCC16(sz,uFlags);
}
/**************************************************************************
* mmioStringToFOURCCW [WINMM.132]
*/
FOURCC WINAPI mmioStringToFOURCCW(LPCWSTR sz, UINT uFlags)
{
LPSTR szA = HEAP_strdupWtoA(GetProcessHeap(),0,sz);
FOURCC ret = mmioStringToFOURCCA(szA,uFlags);
HeapFree(GetProcessHeap(),0,szA);
return ret;
}
/**************************************************************************
* mmioStringToFOURCC [MMSYSTEM.1220]
*/
FOURCC WINAPI mmioStringToFOURCC16(LPCSTR sz, UINT16 uFlags)
{
return mmioFOURCC(sz[0],sz[1],sz[2],sz[3]);
}
/**************************************************************************
* mmioInstallIOProc16 [MMSYSTEM.1221]
*/
LPMMIOPROC16 WINAPI mmioInstallIOProc16(FOURCC fccIOProc,
LPMMIOPROC16 pIOProc, DWORD dwFlags)
{
TRACE(mmio, "(%ld, %p, %08lX)\n",
fccIOProc, pIOProc, dwFlags);
if (dwFlags & MMIO_GLOBALPROC) {
FIXME(mmio, " global procedures not implemented\n");
}
/* just handle the known procedures for now */
switch(dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) {
case MMIO_INSTALLPROC:
return NULL;
case MMIO_REMOVEPROC:
return NULL;
case MMIO_FINDPROC:
if (fccIOProc == FOURCC_DOS)
return (LPMMIOPROC16) mmioDosIOProc;
else if (fccIOProc == FOURCC_MEM)
return (LPMMIOPROC16) mmioMemIOProc;
else
return NULL;
default:
return NULL;
}
}
/**************************************************************************
* mmioInstallIOProcA [WINMM.120]
*/
LPMMIOPROC WINAPI mmioInstallIOProcA(FOURCC fccIOProc,
LPMMIOPROC pIOProc, DWORD dwFlags)
{
FIXME(mmio, "(%c%c%c%c,%p,0x%08lx) -- empty stub \n",
(char)((fccIOProc&0xff000000)>>24),
(char)((fccIOProc&0x00ff0000)>>16),
(char)((fccIOProc&0x0000ff00)>> 8),
(char)(fccIOProc&0x000000ff),
pIOProc, dwFlags );
return 0;
}
/**************************************************************************
* mmioSendMessage [MMSYSTEM.1222]
*/
LRESULT WINAPI mmioSendMessage(HMMIO16 hmmio, UINT16 uMessage,
LPARAM lParam1, LPARAM lParam2)
{
LPMMIOINFO16 lpmminfo;
LRESULT result;
const char *msg = NULL;
#ifdef DEBUG_RUNTIME
switch (uMessage) {
#define msgname(x) case x: msg = #x; break;
msgname(MMIOM_OPEN);
msgname(MMIOM_CLOSE);
msgname(MMIOM_READ);
msgname(MMIOM_WRITE);
msgname(MMIOM_WRITEFLUSH);
msgname(MMIOM_SEEK);
msgname(MMIOM_RENAME);
#undef msgname
}
#endif
if (msg)
TRACE(mmio, "(%04X, %s, %ld, %ld)\n",
hmmio, msg, lParam1, lParam2);
else
TRACE(mmio, "(%04X, %u, %ld, %ld)\n",
hmmio, uMessage, lParam1, lParam2);
lpmminfo = (LPMMIOINFO16)GlobalLock16(hmmio);
if (lpmminfo && lpmminfo->pIOProc)
result = (*lpmminfo->pIOProc)((LPSTR)lpmminfo, uMessage, lParam1, lParam2);
else
result = MMSYSERR_INVALPARAM;
GlobalUnlock16(hmmio);
return result;
}
/**************************************************************************
* mmioDescend [MMSYSTEM.1223]
*/
UINT16 WINAPI mmioDescend(HMMIO16 hmmio, MMCKINFO * lpck,
const MMCKINFO * lpckParent, UINT16 uFlags)
{
DWORD dwOldPos;
MMCKINFO searchcki;
char ckid[5],fcc[5];
TRACE(mmio,"(%04X, %p, %p, %04X);\n",hmmio,lpck,lpckParent,uFlags);
if (lpck == NULL)
return 0;
dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
TRACE(mmio, "dwOldPos=%ld\n", dwOldPos);
if (lpckParent != NULL) {
TRACE(mmio, "seek inside parent at %ld !\n", lpckParent->dwDataOffset);
dwOldPos = mmioSeek(hmmio,lpckParent->dwDataOffset,SEEK_SET);
}
/* The SDK docu says 'ckid' is used for all cases. Real World
* examples disagree -Marcus,990216.
*/
searchcki.fccType = 0;
/* find_chunk looks for 'ckid' */
if (uFlags & MMIO_FINDCHUNK)
searchcki.ckid = lpck->ckid;
/* find_riff and find_list look for 'fccType' */
if (uFlags & MMIO_FINDLIST) {
searchcki.ckid = FOURCC_LIST;
searchcki.fccType = lpck->fccType;
}
if (uFlags & MMIO_FINDRIFF) {
searchcki.ckid = FOURCC_RIFF;
searchcki.fccType = lpck->fccType;
}
memcpy(&fcc,&(searchcki.fccType),4);fcc[4]=0;
memcpy(&ckid,&(searchcki.ckid),4);ckid[4]=0;
TRACE(mmio,"searching for %s.%s\n",ckid,searchcki.fccType?fcc:"<any>");
if (uFlags & (MMIO_FINDCHUNK|MMIO_FINDLIST|MMIO_FINDRIFF)) {
while (TRUE) {
LONG ix;
ix = mmioRead(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD));
if (ix < 2*sizeof(DWORD)) {
mmioSeek(hmmio, dwOldPos, SEEK_SET);
WARN(mmio, "return ChunkNotFound\n");
return MMIOERR_CHUNKNOTFOUND;
}
lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
if (ix < lpck->dwDataOffset - dwOldPos) {
mmioSeek(hmmio, dwOldPos, SEEK_SET);
WARN(mmio, "return ChunkNotFound\n");
return MMIOERR_CHUNKNOTFOUND;
}
memcpy(ckid,&lpck->ckid,4);
memcpy(fcc,&lpck->fccType,4);
TRACE(mmio, "ckid=%s fcc=%s cksize=%08lX !\n",
ckid, searchcki.fccType?fcc:"<unused>",
lpck->cksize
);
if ((searchcki.ckid == lpck->ckid) &&
(!searchcki.fccType ||
(searchcki.fccType == lpck->fccType)
)
)
break;
dwOldPos = lpck->dwDataOffset + lpck->cksize;
mmioSeek(hmmio, dwOldPos, SEEK_SET);
}
/* If we were looking for RIFF/LIST chunks, the final dataptr
* 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 (uFlags & (MMIO_FINDLIST|MMIO_FINDRIFF))
lpck->dwDataOffset+=sizeof(DWORD);
} else {
/* FIXME: unverified, does it do this? */
if (mmioRead(hmmio, (LPSTR)lpck, sizeof(MMCKINFO)) < sizeof(MMCKINFO)) {
mmioSeek(hmmio, dwOldPos, SEEK_SET);
WARN(mmio, "return ChunkNotFound 2nd\n");
return MMIOERR_CHUNKNOTFOUND;
}
lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
lpck->dwDataOffset += sizeof(DWORD);
}
mmioSeek(hmmio, lpck->dwDataOffset, SEEK_SET);
memcpy(ckid,&(lpck->ckid),4);
TRACE(mmio, "lpck->ckid=%s lpck->cksize=%ld !\n", ckid, lpck->cksize);
memcpy(fcc,&(lpck->fccType),4);
TRACE(mmio, "lpck->fccType=%08lX (%s)!\n", lpck->fccType,searchcki.fccType?fcc:"");
return 0;
}
/**************************************************************************
* mmioAscend [WINMM.113]
*/
UINT WINAPI mmioAscend(HMMIO hmmio, MMCKINFO * lpck, UINT uFlags)
{
TRACE(mmio, "(%04X, %p, %04X);\n",
hmmio, lpck, uFlags);
if (lpck->dwFlags&MMIO_DIRTY) {
DWORD dwOldPos, dwNewSize, dwSizePos;
TRACE(mmio, "chunk is marked MMIO_DIRTY, correcting chunk size\n");
dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
TRACE(mmio, "dwOldPos=%ld\n", dwOldPos);
dwNewSize = dwOldPos - lpck->dwDataOffset;
if (dwNewSize != lpck->cksize) {
TRACE(mmio, "dwNewSize=%ld\n", dwNewSize);
lpck->cksize = dwNewSize;
dwSizePos = lpck->dwDataOffset - sizeof(DWORD);
if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
dwSizePos -= sizeof(DWORD);
TRACE(mmio, "dwSizePos=%ld\n", dwSizePos);
mmioSeek(hmmio, dwSizePos, SEEK_SET);
mmioWrite(hmmio, (LPSTR)&dwNewSize, sizeof(DWORD));
}
}
mmioSeek(hmmio,lpck->dwDataOffset+lpck->cksize,SEEK_SET);
return 0;
}
/**************************************************************************
* mmioAscend [MMSYSTEM.1224]
*/
UINT16 WINAPI mmioAscend16(HMMIO16 hmmio, MMCKINFO * lpck, UINT16 uFlags)
{
return mmioAscend(hmmio,lpck,uFlags);
}
/**************************************************************************
* mmioCreateChunk [MMSYSTEM.1225]
*/
UINT16 WINAPI mmioCreateChunk16(HMMIO16 hmmio, MMCKINFO * lpck, UINT16 uFlags)
{
DWORD dwOldPos;
LONG ix;
TRACE(mmio, "(%04X, %p, %04X);\n",
hmmio, lpck, uFlags);
dwOldPos = mmioSeek(hmmio, 0, SEEK_CUR);
TRACE(mmio, "dwOldPos=%ld\n", dwOldPos);
if (uFlags == MMIO_CREATELIST)
lpck->ckid = FOURCC_LIST;
else if (uFlags == MMIO_CREATERIFF)
lpck->ckid = FOURCC_RIFF;
TRACE(mmio, "ckid=%08lX\n", lpck->ckid);
lpck->dwDataOffset = dwOldPos + 2 * sizeof(DWORD);
if (lpck->ckid == FOURCC_RIFF || lpck->ckid == FOURCC_LIST)
lpck->dwDataOffset += sizeof(DWORD);
lpck->dwFlags = MMIO_DIRTY;
ix = mmioWrite(hmmio, (LPSTR)lpck, lpck->dwDataOffset - dwOldPos);
TRACE(mmio, "after mmioWrite ix = %ld req = %ld, errno = %d\n",ix,lpck->dwDataOffset - dwOldPos,errno);
if (ix < lpck->dwDataOffset - dwOldPos) {
mmioSeek(hmmio, dwOldPos, SEEK_SET);
WARN(mmio, "return CannotWrite\n");
return MMIOERR_CANNOTWRITE;
}
return 0;
}
/**************************************************************************
* mmioCreateChunk [WINMM.115]
*/
UINT WINAPI mmioCreateChunk(HMMIO hmmio, MMCKINFO * lpck, UINT uFlags)
{
return mmioCreateChunk16(hmmio, lpck, uFlags);
}
/**************************************************************************
* mmioRename [MMSYSTEM.1226]
*/
UINT16 WINAPI mmioRename16(LPCSTR szFileName, LPCSTR szNewFileName,
MMIOINFO16 * lpmmioinfo, DWORD dwRenameFlags)
{
UINT16 result;
LPMMIOINFO16 lpmminfo;
HMMIO16 hmmio;
TRACE(mmio, "('%s', '%s', %p, %08lX);\n",
szFileName, szNewFileName, lpmmioinfo, dwRenameFlags);
hmmio = GlobalAlloc16(GHND, sizeof(MMIOINFO16));
lpmminfo = (LPMMIOINFO16) GlobalLock16(hmmio);
if (lpmmioinfo)
memcpy(lpmminfo, lpmmioinfo, sizeof(MMIOINFO16));
/* assume DOS file if not otherwise specified */
if (lpmminfo->fccIOProc == 0 && lpmminfo->pIOProc == NULL) {
lpmminfo->fccIOProc = mmioFOURCC('D', 'O', 'S', ' ');
lpmminfo->pIOProc = (LPMMIOPROC16) mmioDosIOProc;
}
/* if just the four character code is present, look up IO proc */
else if (lpmminfo->pIOProc == NULL) {
lpmminfo->pIOProc = mmioInstallIOProc16(lpmminfo->fccIOProc, NULL, MMIO_FINDPROC);
}
/* (if IO proc specified, use it and specified four character code) */
result = (UINT16) mmioSendMessage(hmmio, MMIOM_RENAME, (LPARAM) szFileName, (LPARAM) szNewFileName);
GlobalUnlock16(hmmio);
GlobalFree16(hmmio);
return result;
}
/**************************************************************************
* mmioRenameA [WINMM.125]
*/
UINT WINAPI mmioRenameA(LPCSTR szFileName, LPCSTR szNewFileName,
MMIOINFO* lpmmioinfo, DWORD dwRenameFlags)
{
FIXME(mmio, "This may fail\n");
return mmioRename16(szFileName, szNewFileName, (MMIOINFO16*)lpmmioinfo, dwRenameFlags);
}
/**************************************************************************
* mmioRenameW [WINMM.126]
*/
UINT WINAPI mmioRenameW(LPCWSTR szFileName, LPCWSTR szNewFileName,
MMIOINFO* lpmmioinfo, DWORD dwRenameFlags)
{
LPSTR szFn = HEAP_strdupWtoA(GetProcessHeap(), 0, szFileName);
LPSTR sznFn = HEAP_strdupWtoA(GetProcessHeap(), 0, szNewFileName);
UINT ret = mmioRenameA(szFn, sznFn, lpmmioinfo, dwRenameFlags);
HeapFree(GetProcessHeap(),0,szFn);
HeapFree(GetProcessHeap(),0,sznFn);
return ret;
}
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