How to add winmm.dll driver from within msacm32.dll?

I recently downloaded a Japanese RPG game
(http://download.sama.jp:8080/archives/shinkiro_pre.zip) and
tried to run
it under Wine. However, it crashed with the following fatal trace:

[alex@karlalex shinkiro_pre]$ pwd
/home/alex/.wine/drive_c/shinkiro_pre
[alex@karlalex shinkiro_pre]$ LANG=ja WINEDEBUG=msacm,winmm wine
game.exe
trace:winmm:DllMain 0x7f620000 0x1 0x1
trace:winmm:WINMM_CreateIData Initialized IData (0x7f67fba0)
trace:winmm:MMDRV_Init ()
trace:winmm:MMDRV_Install ('winealsa.drv', 'winealsa.drv',
mapper=N);
ALSA lib control.c:654:(snd_ctl_open_noupdate) Invalid CTL plug:hw:0
ALSA lib pcm_hw.c:1056:(snd_pcm_hw_open) open /dev/snd/pcmC1D0p
failed: Device or resource busy
ALSA lib pcm_hw.c:1056:(snd_pcm_hw_open) open /dev/snd/pcmC1D0c
failed: Device or resource busy
trace:winmm:MMDRV_Install Got 32 bit func 'midMessage'
trace:winmm:MMDRV_Install Got 32 bit func 'modMessage'
trace:winmm:MMDRV_Install Got 32 bit func 'widMessage'
trace:winmm:MMDRV_Install Got 32 bit func 'wodMessage'
trace:winmm:MMDRV_GetDescription32 (0x7fa9fc54, 0x7fa9f998, 128)
trace:winmm:MMDRV_GetDescription32 Can't find file winealsa.drv
trace:winmm:MMDRV_Install winealsa.drv => No description
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0000, 0003)
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0001, 0001)
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0002, 0035)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 1 dev for (winealsa.drv:MidiIn)
trace:winmm:MMDRV_InitPerType Setting min=0 max=1 (ttop=1) for
(winealsa.drv:MidiIn)
trace:winmm:MMDRV_InitPerType MidiIn:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0003, 0001)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 5 dev for (winealsa.drv:MidiOut)
trace:winmm:MMDRV_InitPerType Setting min=0 max=5 (ttop=5) for
(winealsa.drv:MidiOut)
trace:winmm:MMDRV_InitPerType MidiOut:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[1] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[2] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[3] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[4] -> winealsa.drv
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0004, 0032)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 1 dev for (winealsa.drv:WaveIn)
trace:winmm:MMDRV_InitPerType Setting min=0 max=1 (ttop=1) for
(winealsa.drv:WaveIn)
trace:winmm:MMDRV_InitPerType WaveIn:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_InitPerType (0x7f67f600, 0005, 0003)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 1 dev for (winealsa.drv:WaveOut)
trace:winmm:MMDRV_InitPerType Setting min=0 max=1 (ttop=1) for
(winealsa.drv:WaveOut)
trace:winmm:MMDRV_InitPerType WaveOut:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_Install ('wavemapper', 'msacm.drv', mapper=Y);
trace:msacm:DllMain 0x7f5f0000 0x1 (nil)
trace:msacm:MSACM_RegisterDriver (L"MSACM.imaadpcm",
L"imaadp32.acm", (nil))
trace:msacm:MSACM_RegisterDriver (L"MSACM.msadpcm",
L"msadp32.acm", (nil))
trace:msacm:MSACM_RegisterDriver (L"MSACM.msg711",
L"msg711.acm", (nil))
trace:msacm:MSACM_RegisterDriver (L"MSACM.winemp3",
L"winemp3.acm", (nil))
trace:msacm:MSACM_RegisterDriver (L"msacm32.dll",
L"msacm32.dll", (nil))
trace:winmm:MMDRV_Install Got 32 bit func 'widMessage'
trace:winmm:MMDRV_Install Got 32 bit func 'wodMessage'
trace:winmm:MMDRV_GetDescription32 (0x7fa9fb54, 0x7fa9f998, 128)
trace:winmm:MMDRV_GetDescription32 Can't find file msacm.drv
trace:winmm:MMDRV_Install msacm.drv => No description
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0000, 0003)
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0001, 0001)
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0002, 0035)
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0003, 0001)
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0004, 0032)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 1 dev for (wavemapper:WaveIn)
trace:winmm:MMDRV_InitPerType Setting min=0 max=0 (ttop=1) for
(wavemapper:WaveIn)
trace:winmm:MMDRV_InitPerType WaveIn:Trans[-1] -> wavemapper
trace:winmm:MMDRV_InitPerType WaveIn:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_InitPerType (0x7f67f654, 0005, 0003)
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:winmm:MMDRV_InitPerType Got 1 dev for (wavemapper:WaveOut)
trace:winmm:MMDRV_InitPerType Setting min=0 max=0 (ttop=1) for
(wavemapper:WaveOut)
trace:winmm:MMDRV_InitPerType WaveOut:Trans[-1] -> wavemapper
trace:winmm:MMDRV_InitPerType WaveOut:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_Install ('midimapper', 'midimap.drv', mapper=Y);
trace:winmm:MMDRV_GetNum (0003)
trace:winmm:midiOutGetDevCapsW (0, 0x7fa9f720, 84);
trace:winmm:MMDRV_Get ((nil), 0003, Y)
trace:winmm:MMDRV_GetByID (0000, 0003)
trace:winmm:MMDRV_Message (MidiOut 0 2 0x00000000 0x7fa9f720
0x00000054 Y)
trace:winmm:MMDRV_Message Calling message(dev=0 msg=2
usr=0x00000000 p1=0x7fa9f720 p2=0x00000054)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:midiOutGetDevCapsW (1, 0x7fa9f720, 84);
trace:winmm:MMDRV_Get (0x1, 0003, Y)
trace:winmm:MMDRV_GetByID (0001, 0003)
trace:winmm:MMDRV_Message (MidiOut 1 2 0x00000000 0x7fa9f720
0x00000054 Y)
trace:winmm:MMDRV_Message Calling message(dev=1 msg=2
usr=0x00000000 p1=0x7fa9f720 p2=0x00000054)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:midiOutGetDevCapsW (2, 0x7fa9f720, 84);
trace:winmm:MMDRV_Get (0x2, 0003, Y)
trace:winmm:MMDRV_GetByID (0002, 0003)
trace:winmm:MMDRV_Message (MidiOut 2 2 0x00000000 0x7fa9f720
0x00000054 Y)
trace:winmm:MMDRV_Message Calling message(dev=2 msg=2
usr=0x00000000 p1=0x7fa9f720 p2=0x00000054)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:midiOutGetDevCapsW (3, 0x7fa9f720, 84);
trace:winmm:MMDRV_Get (0x3, 0003, Y)
trace:winmm:MMDRV_GetByID (0003, 0003)
trace:winmm:MMDRV_Message (MidiOut 3 2 0x00000000 0x7fa9f720
0x00000054 Y)
trace:winmm:MMDRV_Message Calling message(dev=3 msg=2
usr=0x00000000 p1=0x7fa9f720 p2=0x00000054)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:midiOutGetDevCapsW (4, 0x7fa9f720, 84);
trace:winmm:MMDRV_Get (0x4, 0003, Y)
trace:winmm:MMDRV_GetByID (0004, 0003)
trace:winmm:MMDRV_Message (MidiOut 4 2 0x00000000 0x7fa9f720
0x00000054 Y)
trace:winmm:MMDRV_Message Calling message(dev=4 msg=2
usr=0x00000000 p1=0x7fa9f720 p2=0x00000054)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:MMDRV_Install Got 32 bit func 'modMessage'
trace:winmm:MMDRV_GetDescription32 (0x7fa9fa54, 0x7fa9f98c, 128)
trace:winmm:MMDRV_GetDescription32 Can't find file midimap.drv
trace:winmm:MMDRV_Install midimap.drv => No description
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0000, 0003)
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0001, 0001)
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0002, 0035)
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0003, 0001)
trace:msacm:MIDIMAP_modMessage (0, 0064, 00000000, 00000000,
00000000);
trace:winmm:MMDRV_InitPerType DRVM_INIT => MMSYSERR_NOERROR
trace:msacm:MIDIMAP_modMessage (0, 0001, 00000000, 00000000,
00000000);
trace:winmm:MMDRV_InitPerType Got 1 dev for (midimapper:MidiOut)
trace:winmm:MMDRV_InitPerType Setting min=0 max=0 (ttop=5) for
(midimapper:MidiOut)
trace:winmm:MMDRV_InitPerType MidiOut:Trans[-1] -> midimapper
trace:winmm:MMDRV_InitPerType MidiOut:Trans[0] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[1] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[2] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[3] -> winealsa.drv
trace:winmm:MMDRV_InitPerType MidiOut:Trans[4] -> winealsa.drv
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0004, 0032)
trace:winmm:MMDRV_InitPerType (0x7f67f6a8, 0005, 0003)
trace:winmm:joyGetPos (0, 0x7fa9f2b8);
trace:winmm:MMDRV_GetNum (0005)
trace:winmm:waveOutMessage ((nil), 2068, 2141844160, 0)
trace:winmm:MMDRV_Get ((nil), 0005, N)
trace:winmm:MMDRV_Get ((nil), 0005, Y)
trace:winmm:MMDRV_GetByID (0000, 0005)
trace:winmm:MMDRV_PhysicalFeatures (0x7fe01b8c, 0814, 7fa9f2c0,
00000000)
trace:winmm:MMDRV_Message (WaveOut 0 2068 0x00000000 0x7fa9f2c0
0x00000000 Y)
trace:winmm:MMDRV_Message Calling message(dev=0 msg=2068
usr=0x00000000 p1=0x7fa9f2c0 p2=0x00000000)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:WAVE_Open (0x7fe19304, 0, Out, 0x7fe163a0, 7D70B324,
7FE19068, 00030080, 32);
trace:winmm:WAVE_Open wFormatTag=1, nChannels=2,
nSamplesPerSec=22050, nAvgBytesPerSec=44100, nBlockAlign=2,
wBitsPerSample=8
trace:winmm:MMDRV_Alloc (28, 0005, 0x7fa9f298, 0x7fa9f2e8,
0x7fa9f2e0, 0x7fa9f2e4, Y)
trace:winmm:MMDRV_GetNum (0005)
trace:winmm:WAVE_Open cb=7d70b324
trace:winmm:MMDRV_Open (0x7fe18dd8, 0005, 0x7fa9f29c, 0x00030080)
trace:winmm:MMDRV_Open Setting mmdIndex to 0
trace:winmm:MMDRV_Message (WaveOut 0 5 0x7fa9f268 0x7fa9f29c
0x00030080 Y)
trace:winmm:MMDRV_Message Calling message(dev=0 msg=5
usr=0x7fa9f268 p1=0x7fa9f29c p2=0x00030080)
trace:winmm:MMDRV_Message => MMSYSERR_NOERROR
trace:winmm:WAVE_Open dwRet = MMSYSERR_NOERROR
trace:winmm:WAVE_Open => MMSYSERR_NOERROR hWave=0x8000
trace:msacm:acmDriverAddA (0x7fa9f3d4, 0x10000000, 10001040,
00000000, 00000003)
trace:msacm:MSACM_RegisterDriver ((null), (null), 0x10000000)
err:msacm:MSACM_GetRegistryKey No alias needed for registry entry
trace:msacm:acmDriverOpen (0x7fa9ebc0, 0x7d7d03f8, 00000000)
trace:msacm:acmDriverOpen '(null)' => 7d7d0430
wine: Unhandled exception (thread 0009), starting debugger...
WineDbg starting on pid 0x8
Unhandled exception: page fault on write access to 0x7b480000 in
32-bit code (0x47415b47).
In 32 bit mode.
Register dump:
 CS:0073 SS:007b DS:007b ES:007b FS:003b GS:0033
 EIP:47415b47 ESP:7fa9eb60 EBP:7fa9eb80 EFLAGS:00210246(   - 00
     -RIZP1)
 EAX:00000000 EBX:77ef5f14 ECX:3fffc006 EDX:00000000
 ESI:fffffff8 EDI:7b480000
Stack dump:
0x7fa9eb60:  7b470020 77eca05e 7b470020 00000000
0x7fa9eb70:  fffffff8 77ef5f14 7b470020 fffffff8
0x7fa9eb80:  7fa9eba8 77ec93b8 7b470020 fffffff8
0x7fa9eb90:  00000000 7d7d0000 7b470000 7f60798c
0x7fa9eba0:  7d7d03f8 7d7d03f8 7fa9f360 7f60069f
0x7fa9ebb0:  7d7d0000 0000000a fffffff8 77eea224
Backtrace:
=>1 0x47415b47 __GI_memset in libc.so.6 (0x7fa9eb80)
  2 0x77ec93b8 RtlAllocateHeap(heap=0x7d7d0000, flags=0xa,
size=0xfffffff8)
[/home/alex/install/wine/wine-20050524-patch/dlls/ntdll/heap.c:1179]
in ntdll (0x7fa9eba8)
  3 0x7f60069f MSACM_FillCache+0x197(padid=0x7d7d03f8)
[/home/alex/install/wine/wine-20050524-patch/dlls/msacm/internal.c:106]
in msacm32 (0x7fa9f360)
  4 0x7f600b1c MSACM_RegisterDriver(pszDriverAlias=0x0,
pszFileName=0x0, hinstModule=0x10000000)
[/home/alex/install/wine/wine-20050524-patch/dlls/msacm/internal.c:279]
in msacm32 (0x7fa9f37c)
  5 0x7f5fd580 acmDriverAddA+0x4c(phadid=0x7fa9f3d4,
hinstModule=0x10000000, lParam=0x10001040, dwPriority=0x0,
fdwAdd=0x3) [driver.c:79] in msacm32 (0x7fa9f39c)
  6 0x0045bb45 in game (+0x5bb45) (0x7fa9ff2c)
  7 0x7fd2105b start_process+0xc3(arg=0x0)
[/home/alex/install/wine/wine-20050524-patch/dlls/kernel/process.c:1044]
in kernel32 (0x7fa9fff4)
  8 0xb7f5b70d wine_switch_to_stack+0x11 in libwine.so.1
(0x00000000)
0x47415b47 __GI_memset+0x37 in libc.so.6: repe stosl    %es:(%edi)
Modules:
Module  Address                 Debug info      Name (81 modules)
ELF     0x001d5000-0027e000     Deferred        libasound.so.2
ELF     0x001d5000-0027e000     Deferred        libasound.so.2
ELF     0x002a1000-002b2000     Deferred        libz.so.1
ELF     0x002b4000-00319000     Deferred        libfreetype.so.6
ELF     0x0031b000-00342000     Deferred        libfontconfig.so.1
ELF     0x003b2000-0047a000     Deferred        libx11.so.6
PE      0x00400000-008d7000     Export          game
ELF     0x00cba000-00cc8000     Deferred        libxext.so.6
ELF     0x00cca000-00ce1000     Deferred        libice.so.6
ELF     0x00cdb000-00ce1000     Deferred        libxxf86dga.so.1
ELF     0x00ce3000-00ceb000     Deferred        libsm.so.6
ELF     0x00d01000-00d09000     Deferred        libxrender.so.1
ELF     0x00d0b000-00d0e000     Deferred        libxrandr.so.2
ELF     0x00d3b000-00d40000     Deferred        libxxf86vm.so.1
ELF     0x00dbf000-00dc8000     Deferred        libxcursor.so.1
PE      0x10000000-10138000     Deferred        vorbis.acm
ELF     0x47395000-473ac000     Deferred        ld-linux.so.2
ELF     0x473ae000-474ca000     Export          libc.so.6
ELF     0x474cc000-474ef000     Deferred        libm.so.6
ELF     0x474f1000-474f5000     Deferred        libdl.so.2
ELF     0x475e4000-475f6000     Deferred        libpthread.so.0
ELF     0x476ba000-476d9000     Deferred        libexpat.so.0
ELF     0x77e90000-77f00000     Stabs           ntdll<elf>
  -PE  0x77eb0000-77f00000     \               ntdll
ELF     0x77f00000-77f03000     Deferred        <wine-loader>
ELF     0x7b8c0000-7b8d4000     Deferred        joystick.drv<elf>
  -PE  0x7b8d0000-7b8d4000     \               joystick.drv
ELF     0x7d4b6000-7d4c0000     Deferred        xomgeneric.so.2
ELF     0x7d6dd000-7d722000     Deferred        dsound<elf>
  -PE  0x7d6f0000-7d722000     \               dsound
ELF     0x7d722000-7d790000     Deferred        ddraw<elf>
  -PE  0x7d740000-7d790000     \               ddraw
ELF     0x7d98c000-7d9b6000     Deferred        winealsa.drv<elf>
  -PE  0x7d9a0000-7d9b6000     \               winealsa.drv
ELF     0x7f0ec000-7f109000     Deferred        ximcp.so.2
ELF     0x7f110000-7f128000     Deferred        msacm.drv<elf>
  -PE  0x7f120000-7f128000     \               msacm.drv
ELF     0x7f29d000-7f311000     Deferred        winex11.drv<elf>
  -PE  0x7f2b0000-7f311000     \               winex11.drv
ELF     0x7f3b2000-7f3c7000     Deferred        midimap.drv<elf>
  -PE  0x7f3c0000-7f3c7000     \               midimap.drv
ELF     0x7f3c7000-7f3ca000     Deferred        xlcdef.so.2
ELF     0x7f3ca000-7f41d000     Deferred        shlwapi<elf>
  -PE  0x7f3e0000-7f41d000     \               shlwapi
ELF     0x7f41d000-7f4d1000     Deferred        shell32<elf>
  -PE  0x7f440000-7f4d1000     \               shell32
ELF     0x7f4d1000-7f56e000     Deferred        comctl32<elf>
  -PE  0x7f4e0000-7f56e000     \               comctl32
ELF     0x7f56e000-7f591000     Deferred        msvfw32<elf>
  -PE  0x7f580000-7f591000     \               msvfw32
ELF     0x7f591000-7f5cb000     Deferred        avifil32<elf>
  -PE  0x7f5a0000-7f5cb000     \               avifil32
ELF     0x7f5cb000-7f5e8000     Deferred        imm32<elf>
  -PE  0x7f5d0000-7f5e8000     \               imm32
ELF     0x7f5e8000-7f609000     Stabs           msacm32<elf>
  -PE  0x7f5f0000-7f609000     \               msacm32
ELF     0x7f609000-7f680000     Deferred        winmm<elf>
  -PE  0x7f620000-7f680000     \               winmm
ELF     0x7f680000-7f705000     Deferred        oleaut32<elf>
  -PE  0x7f6a0000-7f705000     \               oleaut32
ELF     0x7f705000-7f723000     Deferred        iphlpapi<elf>
  -PE  0x7f710000-7f723000     \               iphlpapi
ELF     0x7f723000-7f768000     Deferred        rpcrt4<elf>
  -PE  0x7f740000-7f768000     \               rpcrt4
ELF     0x7f768000-7f7e2000     Deferred        ole32<elf>
  -PE  0x7f780000-7f7e2000     \               ole32
ELF     0x7f7e2000-7f81b000     Deferred        advapi32<elf>
  -PE  0x7f7f0000-7f81b000     \               advapi32
ELF     0x7f81b000-7f898000     Deferred        gdi32<elf>
  -PE  0x7f830000-7f898000     \               gdi32
ELF     0x7f898000-7f9a0000     Deferred        user32<elf>
  -PE  0x7f8c0000-7f9a0000     \               user32
ELF     0x7fcb3000-7fdb0000     Stabs           kernel32<elf>
  -PE  0x7fce0000-7fdb0000     \               kernel32
ELF     0x7fec8000-7fed4000     Deferred        libnss_files.so.2
ELF     0x7feda000-7fef0000     Deferred        lz32<elf>
  -PE  0x7fee0000-7fef0000     \               lz32
ELF     0x7fef0000-7ffe4000     Deferred        libwine_unicode.so.1
ELF     0x7ffe5000-7fffe000     Deferred        version<elf>
  -PE  0x7fff0000-7fffe000     \               version
ELF     0xb7f57000-b7f6f000     DIA             libwine.so.1
Threads:
process  tid      prio (all id:s are in hex)
00000008 (D) C:\shinkiro_pre\game.exe
        0000000a   15
        00000009    0 <==
WineDbg terminated on pid 0x8
[alex@karlalex shinkiro_pre]$

I believe the following sequence of events is taking place:

- The function acmDriverAdd is called by the executable with
these parameters:
  trace:msacm:acmDriverAddA (0x7fa9f3d4, 0x10000000, 10001040,
00000000, 00000003)

That is: hinstModule == 0x10000000, fdwAdd ==
ACM_DRIVERADDF_FUNCTION, lParam (acmDriverProc) == 0x10001040
- After verifying that the parameters are valid, the function calls:
  *phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL, NULL,
hinstModule);

Note that lParam is ignored (it even says so in a comment
within the same file)

- The MSACM_RegisterDriver() function, in turn, calls
MSACM_FillCache().
- MSACM_FillCache() calls MSACM_Message() in order to initialize a
  ACMDRIVERDETAILSW structure. However, this function eventually
requires that
  hinstModule be a valid LPWINE_DRIVER reference, which it is
not - it is not
  even a valid pointer (as reported by
HeapValidate(GetProcessHeap(), 0, ptr)).
  Presumably hinstModule is a reference to the executable
itself, and
  lParam(acmDriverProc) was expected to be enough to build a
complete driver
  reference. The net result is that the ACMDRIVERDETAILSW
structure remains
  uninitialized.
- A HeapAlloc() is attempted based on the fields of the
uninitialized structure.
- (Segmentation fault)

I tried the following change in acmDriverAddA() at
dlls/msacm/driver.c:

if (!hinstModule) {
        return MMSYSERR_INVALHANDLE;
    } else {
#define WINE_DI_MAGIC   0x900F1B01
        unsigned int * d = (unsigned int *)hinstModule;
        if (HeapValidate(GetProcessHeap(), 0, d) && *d ==
WINE_DI_MAGIC) {
            *phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL,
NULL, hinstModule);
        } else {
            return MMSYSERR_INVALHANDLE;
        }
    }

This essentially checks for the preconditions required for the
remainder of the
code. However, I believe this to be incomplete. So, the obvious
solution should be
to build a LPWINE_DRIVER function and add its reference to the
chain maintained
by winmm.dll. However, I am not sure of how to proceed from
here. Since
dlls/msacm/driver.c and dlls/winmm/driver.c end up in different
DLLs, I don't
think writing a function to manipulate the chain at
dlls/winmm/driver.c could be
called from dlls/msacm/driver.c without exporting it in the spec
file. No
obvious documented function in the spec file of winmm suggests
itself as appropriate
for the task of building a driver reference from outside
winmm.dll, given only
the driverProc.

How is this solved in other cases (that is, in a way that does
not prevent the
resulting patch from being accepted)?

Alex Villacís Lasso

------------------------------------------------------------------------
Mail enviado desde PortalMail 1.4.2 Web based email system.
PaloSanto Solutions, Sunnyvale CA.
http://www.palosanto.com

[Eric Pouech]

> How is this solved in other cases (that is, in a way that does
> not prevent the
> resulting patch from being accepted)?

the way to go would be to no longer rely on winmm.SendDriverMessage, but to 
directly store in ACM structures the address of the DriverProc. In the case of 
acmDriverAdd, you would just store the function address, in the other cases you 
would grab the DriverProc address from the DLL. If you change this, you would be 
able to no longer export the driverProc from msacm and simply call acmDriverAdd 
for the internal msacm PCM handling driver.

A+

[Alex Villací­s Lasso]

[e-mail] wrote:
> I tried the following change in acmDriverAddA() at
> dlls/msacm/driver.c:
>
> if (!hinstModule) {
>        return MMSYSERR_INVALHANDLE;
>    } else {
> #define WINE_DI_MAGIC   0x900F1B01
>        unsigned int * d = (unsigned int *)hinstModule;
>        if (HeapValidate(GetProcessHeap(), 0, d) && *d ==
> WINE_DI_MAGIC) {
>            *phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL,
> NULL, hinstModule);
>        } else {
>            return MMSYSERR_INVALHANDLE;
>        }
>    }

I saw a mail in wine-devel mentioning the approach of abandoning the 
dependency on DriverSendMessage(). I will try to implement it. 
Meanwhile, this patch prevents the game from crashing, although it does 
not add any functionality. However, it will try to report the 
unsupported configuration as a guide for later implementation.

Alex Villacís Lasso