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wine/dlls/mmsystem.dll16/mci16.c
Marcus Meissner a21c489f0f mmsystem.dll16: Free the correct pointer (Coverity).
2014-01-01 20:45:19 +01:00

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/*
* MMSYSTEM 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>
#include <stdio.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 "digitalv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mmsys);
/**************************************************************************
* MCI_MessageToString [internal]
*/
static const char* MCI_MessageToString(UINT wMsg)
{
static char buffer[100];
#define CASE(s) case (s): return #s
switch (wMsg) {
CASE(DRV_LOAD);
CASE(DRV_ENABLE);
CASE(DRV_OPEN);
CASE(DRV_CLOSE);
CASE(DRV_DISABLE);
CASE(DRV_FREE);
CASE(DRV_CONFIGURE);
CASE(DRV_QUERYCONFIGURE);
CASE(DRV_INSTALL);
CASE(DRV_REMOVE);
CASE(DRV_EXITSESSION);
CASE(DRV_EXITAPPLICATION);
CASE(DRV_POWER);
CASE(MCI_BREAK);
CASE(MCI_CLOSE);
CASE(MCI_CLOSE_DRIVER);
CASE(MCI_COPY);
CASE(MCI_CUE);
CASE(MCI_CUT);
CASE(MCI_DELETE);
CASE(MCI_ESCAPE);
CASE(MCI_FREEZE);
CASE(MCI_PAUSE);
CASE(MCI_PLAY);
CASE(MCI_GETDEVCAPS);
CASE(MCI_INFO);
CASE(MCI_LOAD);
CASE(MCI_OPEN);
CASE(MCI_OPEN_DRIVER);
CASE(MCI_PASTE);
CASE(MCI_PUT);
CASE(MCI_REALIZE);
CASE(MCI_RECORD);
CASE(MCI_RESUME);
CASE(MCI_SAVE);
CASE(MCI_SEEK);
CASE(MCI_SET);
CASE(MCI_SOUND);
CASE(MCI_SPIN);
CASE(MCI_STATUS);
CASE(MCI_STEP);
CASE(MCI_STOP);
CASE(MCI_SYSINFO);
CASE(MCI_UNFREEZE);
CASE(MCI_UPDATE);
CASE(MCI_WHERE);
CASE(MCI_WINDOW);
/* constants for digital video */
CASE(MCI_CAPTURE);
CASE(MCI_MONITOR);
CASE(MCI_RESERVE);
CASE(MCI_SETAUDIO);
CASE(MCI_SIGNAL);
CASE(MCI_SETVIDEO);
CASE(MCI_QUALITY);
CASE(MCI_LIST);
CASE(MCI_UNDO);
CASE(MCI_CONFIGURE);
CASE(MCI_RESTORE);
#undef CASE
default:
sprintf(buffer, "MCI_<<%04X>>", wMsg);
return buffer;
}
}
static LPWSTR MCI_strdupAtoW( LPCSTR str )
{
LPWSTR ret;
INT len;
if (!str) return NULL;
len = MultiByteToWideChar( CP_ACP, 0, str, -1, NULL, 0 );
ret = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
if (ret) MultiByteToWideChar( CP_ACP, 0, str, -1, ret, len );
return ret;
}
/**************************************************************************
* MCI_MapMsg16To32W [internal]
*/
static MMSYSTEM_MapType MCI_MapMsg16To32W(WORD wMsg, DWORD dwFlags, DWORD_PTR* lParam)
{
if (*lParam == 0)
return MMSYSTEM_MAP_OK;
/* FIXME: to add also (with seg/linear modifications to do):
* MCI_LIST, MCI_LOAD, MCI_QUALITY, MCI_RESERVE, MCI_RESTORE, MCI_SAVE
* MCI_SETAUDIO, MCI_SETTUNER, MCI_SETVIDEO
*/
switch (wMsg) {
/* case MCI_CAPTURE */
case MCI_CLOSE:
case MCI_CLOSE_DRIVER:
case MCI_CONFIGURE:
case MCI_COPY:
case MCI_CUE:
case MCI_CUT:
case MCI_DELETE:
case MCI_GETDEVCAPS:
/* case MCI_INDEX: */
/* case MCI_MARK: */
/* case MCI_MONITOR: */
case MCI_PASTE:
case MCI_PAUSE:
case MCI_PLAY:
case MCI_REALIZE:
case MCI_RECORD:
case MCI_RESUME:
case MCI_SEEK:
case MCI_SET:
/* case MCI_SETTIMECODE:*/
/* case MCI_SIGNAL:*/
case MCI_SPIN:
case MCI_STEP:
case MCI_STOP:
/* case MCI_UNDO: */
case MCI_UPDATE:
*lParam = (DWORD)MapSL(*lParam);
return MMSYSTEM_MAP_OK;
case MCI_WHERE:
case MCI_FREEZE:
case MCI_UNFREEZE:
case MCI_PUT:
{
LPMCI_DGV_RECT_PARMS mdrp32 = HeapAlloc(GetProcessHeap(), 0,
sizeof(LPMCI_DGV_RECT_PARMS16) + sizeof(MCI_DGV_RECT_PARMS));
LPMCI_DGV_RECT_PARMS16 mdrp16 = MapSL(*lParam);
if (mdrp32) {
*(LPMCI_DGV_RECT_PARMS16*)(mdrp32) = mdrp16;
mdrp32 = (LPMCI_DGV_RECT_PARMS)((char*)mdrp32 + sizeof(LPMCI_DGV_RECT_PARMS16));
mdrp32->dwCallback = mdrp16->dwCallback;
mdrp32->rc.left = mdrp16->rc.left;
mdrp32->rc.top = mdrp16->rc.top;
mdrp32->rc.right = mdrp16->rc.right;
mdrp32->rc.bottom = mdrp16->rc.bottom;
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mdrp32;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_STATUS:
{
if (dwFlags & (MCI_DGV_STATUS_REFERENCE | MCI_DGV_STATUS_DISKSPACE)) {
LPMCI_DGV_STATUS_PARMSW mdsp32w = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(LPMCI_DGV_STATUS_PARMS16) + sizeof(MCI_DGV_STATUS_PARMSW));
LPMCI_DGV_STATUS_PARMS16 mdsp16 = MapSL(*lParam);
if (mdsp32w) {
*(LPMCI_DGV_STATUS_PARMS16*)(mdsp32w) = mdsp16;
mdsp32w = (LPMCI_DGV_STATUS_PARMSW)((char*)mdsp32w + sizeof(LPMCI_DGV_STATUS_PARMS16));
mdsp32w->dwCallback = mdsp16->dwCallback;
mdsp32w->dwReturn = mdsp16->dwReturn;
mdsp32w->dwItem = mdsp16->dwItem;
mdsp32w->dwTrack = mdsp16->dwTrack;
if (dwFlags & MCI_DGV_STATUS_DISKSPACE)
mdsp32w->lpstrDrive = MCI_strdupAtoW(MapSL(mdsp16->lpstrDrive));
if (dwFlags & MCI_DGV_STATUS_REFERENCE)
mdsp32w->dwReference = mdsp16->dwReference;
*lParam = (DWORD)mdsp32w;
} else {
return MMSYSTEM_MAP_NOMEM;
}
} else {
*lParam = (DWORD)MapSL(*lParam);
return MMSYSTEM_MAP_OK;
}
}
return MMSYSTEM_MAP_OKMEM;
case MCI_WINDOW:
{
LPMCI_OVLY_WINDOW_PARMSW mowp32w = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MCI_OVLY_WINDOW_PARMSW));
LPMCI_OVLY_WINDOW_PARMS16 mowp16 = MapSL(*lParam);
if (mowp32w) {
mowp32w->dwCallback = mowp16->dwCallback;
mowp32w->hWnd = HWND_32(mowp16->hWnd);
mowp32w->nCmdShow = mowp16->nCmdShow;
if (dwFlags & (MCI_DGV_WINDOW_TEXT | MCI_OVLY_WINDOW_TEXT))
mowp32w->lpstrText = MCI_strdupAtoW(MapSL(mowp16->lpstrText));
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mowp32w;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_BREAK:
{
LPMCI_BREAK_PARMS mbp32 = HeapAlloc(GetProcessHeap(), 0, sizeof(MCI_BREAK_PARMS));
LPMCI_BREAK_PARMS16 mbp16 = MapSL(*lParam);
if (mbp32) {
mbp32->dwCallback = mbp16->dwCallback;
mbp32->nVirtKey = mbp16->nVirtKey;
mbp32->hwndBreak = HWND_32(mbp16->hwndBreak);
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mbp32;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_ESCAPE:
{
LPMCI_VD_ESCAPE_PARMSW mvep32w = HeapAlloc(GetProcessHeap(), 0, sizeof(MCI_VD_ESCAPE_PARMSW));
LPMCI_VD_ESCAPE_PARMS16 mvep16 = MapSL(*lParam);
if (mvep32w) {
mvep32w->dwCallback = mvep16->dwCallback;
mvep32w->lpstrCommand = MCI_strdupAtoW(MapSL(mvep16->lpstrCommand));
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mvep32w;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_INFO:
{
LPMCI_DGV_INFO_PARMSW mip32w = HeapAlloc(GetProcessHeap(), 0, sizeof(LPMCI_DGV_INFO_PARMS16) + sizeof(MCI_DGV_INFO_PARMSW));
LPMCI_DGV_INFO_PARMS16 mip16 = MapSL(*lParam);
if (mip32w) {
*(LPMCI_DGV_INFO_PARMS16*)(mip32w) = mip16;
mip32w = (LPMCI_DGV_INFO_PARMSW)((char*)mip32w + sizeof(LPMCI_DGV_INFO_PARMS16));
mip32w->dwCallback = mip16->dwCallback;
mip32w->lpstrReturn = HeapAlloc(GetProcessHeap(), 0, mip16->dwRetSize * sizeof(WCHAR));
mip32w->dwRetSize = mip16->dwRetSize;
if (dwFlags & MCI_DGV_INFO_ITEM)
mip32w->dwItem = mip16->dwItem;
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mip32w;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_OPEN:
case MCI_OPEN_DRIVER:
{
LPMCI_OPEN_PARMSW mop32w = HeapAlloc(GetProcessHeap(), 0, sizeof(LPMCI_OPEN_PARMS16) + sizeof(MCI_ANIM_OPEN_PARMSW));
LPMCI_OPEN_PARMS16 mop16 = MapSL(*lParam);
if (mop32w) {
*(LPMCI_OPEN_PARMS16*)(mop32w) = mop16;
mop32w = (LPMCI_OPEN_PARMSW)((char*)mop32w + sizeof(LPMCI_OPEN_PARMS16));
mop32w->dwCallback = mop16->dwCallback;
mop32w->wDeviceID = mop16->wDeviceID;
if( ( dwFlags & ( MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID)) == MCI_OPEN_TYPE)
mop32w->lpstrDeviceType = MCI_strdupAtoW(MapSL(mop16->lpstrDeviceType));
else
mop32w->lpstrDeviceType = (LPWSTR) mop16->lpstrDeviceType;
if( ( dwFlags & ( MCI_OPEN_ELEMENT | MCI_OPEN_ELEMENT_ID)) == MCI_OPEN_ELEMENT)
mop32w->lpstrElementName = MCI_strdupAtoW(MapSL(mop16->lpstrElementName));
else
mop32w->lpstrElementName = (LPWSTR) mop16->lpstrElementName;
if( ( dwFlags & MCI_OPEN_ALIAS))
mop32w->lpstrAlias = MCI_strdupAtoW(MapSL(mop16->lpstrAlias));
else
mop32w->lpstrAlias = (LPWSTR) mop16->lpstrAlias;
/* copy extended information if any...
* FIXME: this may seg fault if initial structure does not contain them and
* the reads after msip16 fail under LDT limits...
* NOTE: this should be split in two. First pass, while calling MCI_OPEN, and
* should not take care of extended parameters, and should be used by MCI_Open
* to fetch uDevType. When, this is known, the mapping for sending the
* MCI_OPEN_DRIVER shall be done depending on uDevType.
*/
if (HIWORD(dwFlags))
memcpy(mop32w + 1, mop16 + 1, sizeof(MCI_ANIM_OPEN_PARMS16) - sizeof(MCI_OPEN_PARMS16));
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mop32w;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_SYSINFO:
{
MCI_SYSINFO_PARMSW *origmsip32w;
MCI_SYSINFO_PARMSW *msip32w = HeapAlloc(GetProcessHeap(), 0, sizeof(MCI_OPEN_PARMS16 *) + sizeof(MCI_SYSINFO_PARMSW));
MCI_SYSINFO_PARMS16 *msip16 = MapSL(*lParam);
if (!msip32w)
return MMSYSTEM_MAP_NOMEM;
origmsip32w = msip32w;
*(MCI_SYSINFO_PARMS16 **)msip32w = msip16;
msip32w = (MCI_SYSINFO_PARMSW *)((char *)msip32w + sizeof(MCI_OPEN_PARMS16 *));
msip32w->dwCallback = msip16->dwCallback;
msip32w->lpstrReturn = HeapAlloc(GetProcessHeap(), 0, (dwFlags & MCI_SYSINFO_QUANTITY) ?
sizeof(DWORD) :
msip16->dwRetSize * sizeof(WCHAR));
if (!msip32w->lpstrReturn)
{
HeapFree(GetProcessHeap(), 0, origmsip32w);
return MMSYSTEM_MAP_NOMEM;
}
msip32w->dwRetSize = (dwFlags & MCI_SYSINFO_QUANTITY) ? sizeof(DWORD) : msip16->dwRetSize;
msip32w->dwNumber = msip16->dwNumber;
msip32w->wDeviceType = msip16->wDeviceType;
*lParam = (DWORD)msip32w;
}
return MMSYSTEM_MAP_OKMEM;
case MCI_SOUND:
{
LPMCI_SOUND_PARMSW mbp32 = HeapAlloc(GetProcessHeap(), 0, sizeof(MCI_SOUND_PARMSW));
LPMCI_SOUND_PARMS16 mbp16 = MapSL(*lParam);
if (mbp32) {
mbp32->dwCallback = mbp16->dwCallback;
mbp32->lpstrSoundName = MCI_strdupAtoW(MapSL(mbp16->lpstrSoundName));
} else {
return MMSYSTEM_MAP_NOMEM;
}
*lParam = (DWORD)mbp32;
}
return MMSYSTEM_MAP_OKMEM;
case DRV_LOAD:
case DRV_ENABLE:
case DRV_OPEN:
case DRV_CLOSE:
case DRV_DISABLE:
case DRV_FREE:
case DRV_CONFIGURE:
case DRV_QUERYCONFIGURE:
case DRV_INSTALL:
case DRV_REMOVE:
case DRV_EXITSESSION:
case DRV_EXITAPPLICATION:
case DRV_POWER:
FIXME("This is a hack\n");
return MMSYSTEM_MAP_OK;
default:
FIXME("Don't know how to map msg=%s\n", MCI_MessageToString(wMsg));
}
return MMSYSTEM_MAP_MSGERROR;
}
/**************************************************************************
* MCI_UnMapMsg16To32W [internal]
*/
static void MCI_UnMapMsg16To32W(WORD wMsg, DWORD dwFlags, DWORD_PTR lParam, DWORD result)
{
switch (wMsg) {
case MCI_WHERE:
case MCI_FREEZE:
case MCI_UNFREEZE:
case MCI_PUT:
if (lParam) {
LPMCI_DGV_RECT_PARMS mdrp32 = (LPMCI_DGV_RECT_PARMS)lParam;
char *base = (char*)lParam - sizeof(LPMCI_DGV_RECT_PARMS16);
LPMCI_DGV_RECT_PARMS16 mdrp16 = *(LPMCI_DGV_RECT_PARMS16*)base;
mdrp16->rc.left = mdrp32->rc.left;
mdrp16->rc.top = mdrp32->rc.top;
mdrp16->rc.right = mdrp32->rc.right;
mdrp16->rc.bottom = mdrp32->rc.bottom;
HeapFree(GetProcessHeap(), 0, base);
}
break;
case MCI_STATUS:
if (lParam) {
LPMCI_DGV_STATUS_PARMSW mdsp32w = (LPMCI_DGV_STATUS_PARMSW)lParam;
char *base = (char*)lParam - sizeof(LPMCI_DGV_STATUS_PARMS16);
LPMCI_DGV_STATUS_PARMS16 mdsp16 = *(LPMCI_DGV_STATUS_PARMS16*)base;
mdsp16->dwReturn = mdsp32w->dwReturn;
HeapFree(GetProcessHeap(), 0, (LPVOID)mdsp32w->lpstrDrive);
HeapFree(GetProcessHeap(), 0, base);
}
break;
case MCI_WINDOW:
if (lParam) {
LPMCI_OVLY_WINDOW_PARMSW mowp32w = (LPMCI_OVLY_WINDOW_PARMSW)lParam;
HeapFree(GetProcessHeap(), 0, (LPVOID)mowp32w->lpstrText);
HeapFree(GetProcessHeap(), 0, mowp32w);
}
break;
case MCI_BREAK:
HeapFree(GetProcessHeap(), 0, (LPVOID)lParam);
break;
case MCI_ESCAPE:
if (lParam) {
LPMCI_VD_ESCAPE_PARMSW mvep32W = (LPMCI_VD_ESCAPE_PARMSW)lParam;
HeapFree(GetProcessHeap(), 0, (LPVOID)mvep32W->lpstrCommand);
HeapFree(GetProcessHeap(), 0, (LPVOID)lParam);
}
break;
case MCI_INFO:
if (lParam) {
LPMCI_INFO_PARMSW mip32w = (LPMCI_INFO_PARMSW)lParam;
char *base = (char*)lParam - sizeof(LPMCI_INFO_PARMS16);
LPMCI_INFO_PARMS16 mip16 = *(LPMCI_INFO_PARMS16*)base;
if (result == MMSYSERR_NOERROR)
WideCharToMultiByte(CP_ACP, 0,
mip32w->lpstrReturn, mip32w->dwRetSize,
MapSL(mip16->lpstrReturn), mip16->dwRetSize,
NULL, NULL);
mip16->dwRetSize = mip32w->dwRetSize; /* never update prior to NT? */
HeapFree(GetProcessHeap(), 0, mip32w->lpstrReturn);
HeapFree(GetProcessHeap(), 0, base);
}
break;
case MCI_SYSINFO:
if (lParam) {
MCI_SYSINFO_PARMSW *msip32w = (MCI_SYSINFO_PARMSW *)lParam;
char *base = (char*)lParam - sizeof(MCI_SYSINFO_PARMS16 *);
MCI_SYSINFO_PARMS16 *msip16 = *(MCI_SYSINFO_PARMS16 **)base;
if (dwFlags & MCI_SYSINFO_QUANTITY) {
DWORD *quantity = MapSL(msip16->lpstrReturn);
*quantity = *(DWORD *)msip32w->lpstrReturn;
}
else if (result == MMSYSERR_NOERROR) {
WideCharToMultiByte(CP_ACP, 0,
msip32w->lpstrReturn, msip32w->dwRetSize,
MapSL(msip16->lpstrReturn), msip16->dwRetSize,
NULL, NULL);
}
HeapFree(GetProcessHeap(), 0, msip32w->lpstrReturn);
HeapFree(GetProcessHeap(), 0, base);
}
break;
case MCI_SOUND:
if (lParam) {
LPMCI_SOUND_PARMSW msp32W = (LPMCI_SOUND_PARMSW)lParam;
HeapFree(GetProcessHeap(), 0, (LPVOID)msp32W->lpstrSoundName);
HeapFree(GetProcessHeap(), 0, (LPVOID)lParam);
}
break;
case MCI_OPEN:
case MCI_OPEN_DRIVER:
if (lParam) {
LPMCI_OPEN_PARMSW mop32w = (LPMCI_OPEN_PARMSW)lParam;
char *base = (char*)lParam - sizeof(LPMCI_OPEN_PARMS16);
LPMCI_OPEN_PARMS16 mop16 = *(LPMCI_OPEN_PARMS16*)base;
mop16->wDeviceID = mop32w->wDeviceID;
if( ( dwFlags & ( MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID)) == MCI_OPEN_TYPE)
HeapFree(GetProcessHeap(), 0, (LPWSTR)mop32w->lpstrDeviceType);
if( ( dwFlags & ( MCI_OPEN_ELEMENT | MCI_OPEN_ELEMENT_ID)) == MCI_OPEN_ELEMENT)
HeapFree(GetProcessHeap(), 0, (LPWSTR)mop32w->lpstrElementName);
if( ( dwFlags & MCI_OPEN_ALIAS))
HeapFree(GetProcessHeap(), 0, (LPWSTR)mop32w->lpstrAlias);
HeapFree(GetProcessHeap(), 0, base);
}
break;
default:
FIXME("Map/Unmap internal error on msg=%s\n", MCI_MessageToString(wMsg));
}
}
/* ###################################################
* # MCI #
* ###################################################
*/
#include <pshpack1.h>
#define MCI_MAX_THUNKS 32
static struct mci_thunk
{
BYTE popl_eax; /* popl %eax (return address) */
BYTE pushl_func; /* pushl $pfn16 (16bit callback function) */
YIELDPROC16 yield16;
BYTE pushl_eax; /* pushl %eax */
BYTE jmp; /* ljmp MCI_Yield1632 */
DWORD callback;
MCIDEVICEID id;
} *MCI_Thunks;
#include <poppack.h>
static CRITICAL_SECTION mci_cs;
static CRITICAL_SECTION_DEBUG mci_critsect_debug =
{
0, 0, &mci_cs,
{ &mci_critsect_debug.ProcessLocksList, &mci_critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": mmsystem_mci_cs") }
};
static CRITICAL_SECTION mci_cs = { &mci_critsect_debug, -1, 0, 0, 0, 0 };
static UINT MCI_Yield1632(DWORD pfn16, MCIDEVICEID id, DWORD yield_data)
{
WORD args[8];
if (!pfn16)
{
MSG msg;
PeekMessageW( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE );
return 0;
}
/* 16 bit func, call it */
TRACE("Function (16 bit) !\n");
args[2] = (MCIDEVICEID16)id;
args[1] = HIWORD(yield_data);
args[0] = LOWORD(yield_data);
return WOWCallback16Ex(pfn16, WCB16_PASCAL, sizeof(args), args, NULL);
}
/******************************************************************
* MCI_AddThunk
*
*/
static struct mci_thunk* MCI_AddThunk(MCIDEVICEID id, YIELDPROC16 pfn16)
{
struct mci_thunk* thunk;
if (!MCI_Thunks)
{
MCI_Thunks = VirtualAlloc(NULL, MCI_MAX_THUNKS * sizeof(*MCI_Thunks), MEM_COMMIT,
PAGE_EXECUTE_READWRITE);
if (!MCI_Thunks) return NULL;
for (thunk = MCI_Thunks; thunk < &MCI_Thunks[MCI_MAX_THUNKS]; thunk++)
{
thunk->popl_eax = 0x58; /* popl %eax */
thunk->pushl_func = 0x68; /* pushl $pfn16 */
thunk->yield16 = 0;
thunk->pushl_eax = 0x50; /* pushl %eax */
thunk->jmp = 0xe9; /* jmp MCI_Yield1632 */
thunk->callback = (char *)MCI_Yield1632 - (char *)(&thunk->callback + 1);
thunk->id = 0;
}
}
for (thunk = MCI_Thunks; thunk < &MCI_Thunks[MCI_MAX_THUNKS]; thunk++)
{
if (thunk->yield16 == 0)
{
thunk->yield16 = pfn16;
thunk->id = id;
return thunk;
}
}
FIXME("Out of mci-thunks. Bump MCI_MAX_THUNKS\n");
return NULL;
}
/******************************************************************
* MCI_HasThunk
*
*/
static struct mci_thunk* MCI_HasThunk(YIELDPROC pfn)
{
struct mci_thunk* thunk;
if (!MCI_Thunks) return NULL;
for (thunk = MCI_Thunks; thunk < &MCI_Thunks[MCI_MAX_THUNKS]; thunk++)
{
if ((YIELDPROC)thunk == pfn) return thunk;
}
return NULL;
}
/**************************************************************************
* mciSetYieldProc [MMSYSTEM.714]
*/
BOOL16 WINAPI mciSetYieldProc16(UINT16 uDeviceID, YIELDPROC16 fpYieldProc, DWORD dwYieldData)
{
struct mci_thunk* thunk;
BOOL ret;
TRACE("(%u, %p, %08x)\n", uDeviceID, fpYieldProc, dwYieldData);
if (!(thunk = MCI_AddThunk(uDeviceID, fpYieldProc)))
return FALSE;
ret = mciSetYieldProc(uDeviceID, (YIELDPROC)thunk, dwYieldData);
if (!ret) thunk->yield16 = NULL;
return ret;
}
/**************************************************************************
* mciGetYieldProc [MMSYSTEM.716]
*/
YIELDPROC16 WINAPI mciGetYieldProc16(UINT16 uDeviceID, DWORD* lpdwYieldData)
{
YIELDPROC yield;
DWORD data;
struct mci_thunk* thunk;
TRACE("(%u, %p)\n", uDeviceID, lpdwYieldData);
yield = mciGetYieldProc(uDeviceID, &data);
if (!yield || !(thunk = MCI_HasThunk(yield))) return NULL;
if (lpdwYieldData) *lpdwYieldData = data;
return thunk->yield16;
}
/**************************************************************************
* mciGetErrorString [MMSYSTEM.706]
*/
BOOL16 WINAPI mciGetErrorString16(DWORD wError, LPSTR lpstrBuffer, UINT16 uLength)
{
return mciGetErrorStringA(wError, lpstrBuffer, uLength);
}
/**************************************************************************
* mciDriverNotify [MMSYSTEM.711]
*/
BOOL16 WINAPI mciDriverNotify16(HWND16 hWndCallBack, UINT16 wDevID, UINT16 wStatus)
{
TRACE("(%04X, %04x, %04X)\n", hWndCallBack, wDevID, wStatus);
return PostMessageA(HWND_32(hWndCallBack), MM_MCINOTIFY, wStatus, wDevID);
}
/**************************************************************************
* mciGetDriverData [MMSYSTEM.708]
*/
DWORD WINAPI mciGetDriverData16(UINT16 uDeviceID)
{
return mciGetDriverData(uDeviceID);
}
/**************************************************************************
* mciSetDriverData [MMSYSTEM.707]
*/
BOOL16 WINAPI mciSetDriverData16(UINT16 uDeviceID, DWORD data)
{
return mciSetDriverData(uDeviceID, data);
}
/**************************************************************************
* mciSendCommand [MMSYSTEM.701]
*/
DWORD WINAPI mciSendCommand16(UINT16 wDevID, UINT16 wMsg, DWORD dwParam1, DWORD p2)
{
DWORD dwRet;
BOOL to32;
DWORD_PTR dwParam2 = p2;
TRACE("(%04X, %s, %08X, %08lX)\n", wDevID, MCI_MessageToString(wMsg), dwParam1, dwParam2);
switch (wMsg) {
case MCI_CLOSE:
case MCI_OPEN:
case MCI_SYSINFO:
case MCI_BREAK:
case MCI_SOUND:
to32 = TRUE;
break;
default:
/* FIXME: this is suboptimal. If MCI driver is a 16bit one, we'll be
* doing 16=>32W, then 32W=>16 conversions.
* We could directly call the 16bit driver if we had the information.
*/
to32 = TRUE;
}
if (to32) {
MMSYSTEM_MapType res;
dwRet = MCIERR_INVALID_DEVICE_ID;
switch (res = MCI_MapMsg16To32W(wMsg, dwParam1, &dwParam2)) {
case MMSYSTEM_MAP_MSGERROR:
dwRet = MCIERR_DRIVER_INTERNAL;
break;
case MMSYSTEM_MAP_NOMEM:
TRACE("Problem mapping %s from 16 to 32\n", MCI_MessageToString(wMsg));
dwRet = MCIERR_OUT_OF_MEMORY;
break;
case MMSYSTEM_MAP_OK:
case MMSYSTEM_MAP_OKMEM:
dwRet = mciSendCommandW(wDevID, wMsg, dwParam1, dwParam2);
if (res == MMSYSTEM_MAP_OKMEM)
MCI_UnMapMsg16To32W(wMsg, dwParam1, dwParam2, dwRet);
break;
}
}
else
{
#if 0
if (wDevID == MCI_ALL_DEVICE_ID) {
FIXME("unhandled MCI_ALL_DEVICE_ID\n");
dwRet = MCIERR_CANNOT_USE_ALL;
} else {
dwRet = SendDriverMessage(hdrv, wMsg, dwParam1, dwParam2);
}
#endif
}
if (wMsg == MCI_CLOSE && dwRet == 0 && MCI_Thunks)
{
/* free yield thunks, if any */
unsigned i;
for (i = 0; i < MCI_MAX_THUNKS; i++)
{
if (MCI_Thunks[i].id == wDevID)
MCI_Thunks[i].yield16 = NULL;
}
}
return dwRet;
}
/**************************************************************************
* mciGetDeviceID [MMSYSTEM.703]
*/
UINT16 WINAPI mciGetDeviceID16(LPCSTR lpstrName)
{
TRACE("(\"%s\")\n", lpstrName);
return mciGetDeviceIDA(lpstrName);
}
/**************************************************************************
* mciGetDeviceIDFromElementID [MMSYSTEM.715]
*/
UINT16 WINAPI mciGetDeviceIDFromElementID16(DWORD dwElementID, LPCSTR lpstrType)
{
return mciGetDeviceIDFromElementIDA(dwElementID, lpstrType);
}
/**************************************************************************
* mciGetCreatorTask [MMSYSTEM.717]
*/
HTASK16 WINAPI mciGetCreatorTask16(UINT16 uDeviceID)
{
return HTASK_16(mciGetCreatorTask(uDeviceID));
}
/**************************************************************************
* mciDriverYield [MMSYSTEM.710]
*/
UINT16 WINAPI mciDriverYield16(UINT16 uDeviceID)
{
return mciDriverYield(uDeviceID);
}
/**************************************************************************
* mciSendString [MMSYSTEM.702]
*/
DWORD WINAPI mciSendString16(LPCSTR lpstrCommand, LPSTR lpstrRet,
UINT16 uRetLen, HWND16 hwndCallback)
{
return mciSendStringA(lpstrCommand, lpstrRet, uRetLen, HWND_32(hwndCallback));
}
/**************************************************************************
* mciLoadCommandResource [MMSYSTEM.705]
*/
UINT16 WINAPI mciLoadCommandResource16(HINSTANCE16 hInst, LPCSTR resname, UINT16 type)
{
TRACE("(%04x, %s, %x)!\n", hInst, resname, type);
return MCI_NO_COMMAND_TABLE;
}
/**************************************************************************
* mciFreeCommandResource [MMSYSTEM.713]
*/
BOOL16 WINAPI mciFreeCommandResource16(UINT16 uTable)
{
TRACE("(%04x)!\n", uTable);
return FALSE;
}
/**************************************************************************
* mciExecute [MMSYSTEM.712]
*/
BOOL16 WINAPI mciExecute16(LPCSTR lpstrCommand)
{
return mciExecute(lpstrCommand);
}
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