[PATCH 4/4] [v2] winmm: Support TIME_MIDI position in MIDI stream.

[Akihiro Sagawa]

In v2,
Remove awkward goto statement, duplicate TIME_MS code fragment instead.
Andrew, as an alternative, do you prefer the following way?

---
redo:
 switch (lpMMT->wType) {
     :  :  :
   /* fall through to alternative format */
   case TIME_MS:
     lpMMT->u.ms = midistream_get_playing_position(lpMidiStrm);
     break;
   default:
     lpMMT->wType = TIME_MS;
     goto redo;
 }
---

Signed-off-by: Akihiro Sagawa 
---
 dlls/winmm/tests/midi.c |  4 ++--
 dlls/winmm/winmm.c      | 21 ++++++++++++++++++---
 2 files changed, 20 insertions(+), 5 deletions(-)

[Andrew Eikum]

Signed-off-by: Andrew Eikum

On Wed, Jul 11, 2018 at 10:33:25PM +0900, Akihiro Sagawa wrote:
> In v2,
> Remove awkward goto statement, duplicate TIME_MS code fragment instead.
> Andrew, as an alternative, do you prefer the following way?
>
> redo:
>  switch (lpMMT->wType) {
>      :  :  :
>    /* fall through to alternative format */
>    case TIME_MS:
>      lpMMT->u.ms = midistream_get_playing_position(lpMidiStrm);
>      break;
>    default:
>      lpMMT->wType = TIME_MS;
>      goto redo;
>  }
> Signed-off-by: Akihiro Sagawa
>
> dlls/winmm/tests/midi.c |  4 ++--
>  dlls/winmm/winmm.c      | 21 ++++++++++++++++++---
>  2 files changed, 20 insertions(+), 5 deletions(-)
> diff --git a/dlls/winmm/tests/midi.c b/dlls/winmm/tests/midi.c
> index 66f35ef..2b1e91f 100644
> --- a/dlls/winmm/tests/midi.c
> +++ b/dlls/winmm/tests/midi.c
> @@ -698,7 +698,7 @@ static void test_midiStream(UINT udev, HWND hwnd)
>      test_position(hm, TIME_MS,      TIME_MS);
>      test_position(hm, TIME_TICKS,   TIME_TICKS);
> -
>    todo_wine test_position(hm, TIME_MIDI,    TIME_MIDI);
> -
>    test_position(hm, TIME_MIDI,    TIME_MIDI);
>    test_position(hm, TIME_SMPTE,   TIME_MS);
>    test_position(hm, TIME_SAMPLES, TIME_MS);
>    test_position(hm, TIME_BYTES,   TIME_MS);
>
> @@ -933,7 +933,7 @@ static void test_midiStream(UINT udev, HWND hwnd)
>      /* TIME_MIDI value is a quarter of TIME_TICKS, rounded */
>      expected = (ret + midiprop.tdiv.dwTimeDiv/8) / (midiprop.tdiv.dwTimeDiv/4);
>      ret = get_position(hm, TIME_MIDI);
> - todo_wine ok(ret == expected, "expected song pointer %u, got %u\n", expected, ret);
> -
>
> ok(ret == expected, "expected song pointer %u, got %u\n", expected, ret);
>
> ok(records.count == 2, "expected 2 MM_MOM_DONE messages, got %d\n", records.count);
>
> diff --git a/dlls/winmm/winmm.c b/dlls/winmm/winmm.c
> index f2dfae9..487bbff 100644
> --- a/dlls/winmm/winmm.c
> +++ b/dlls/winmm/winmm.c
> @@ -1508,9 +1508,17 @@ MMRESULT WINAPI midiStreamPosition(HMIDISTRM hMidiStrm, LPMMTIME lpMMT, UINT cbm
>      } else {
>    EnterCriticalSection(&lpMidiStrm->lock);
>    switch (lpMMT->wType) {
> - default:
> -
>    FIXME("Unsupported time type %x\n", lpMMT->wType);
> -
>    /* fall through */
> - case TIME_MIDI:
> -
>    if (lpMidiStrm->dwTimeDiv < 0x8000) {
> -
> DWORD tdiv, pulses;
> -
> tdiv = (lpMidiStrm->dwTimeDiv > 24) ? lpMidiStrm->dwTimeDiv : 24;
> -
> pulses = midistream_get_current_pulse(lpMidiStrm);
> -
> lpMMT->u.midi.songptrpos = (pulses + tdiv/8) / (tdiv/4);
> -
> if (!lpMMT->u.midi.songptrpos && pulses) lpMMT->u.midi.songptrpos++;
> -
> TRACE("=> song position %d (pulses %u, tdiv %u)\n", lpMMT->u.midi.songptrpos, pulses, tdiv);
> -
> break;
> -
>    }
> - /* fall through */
> case TIME_BYTES:
> case TIME_SAMPLES:
>   lpMMT->wType = TIME_MS;
>
> @@ -1523,6 +1531,13 @@ MMRESULT WINAPI midiStreamPosition(HMIDISTRM hMidiStrm, LPMMTIME lpMMT, UINT cbm
>        lpMMT->u.ticks = midistream_get_current_pulse(lpMidiStrm);
>        TRACE("=> %d ticks\n", lpMMT->u.ticks);
>        break;
> - default:
> -
>    FIXME("Unsupported time type %x\n", lpMMT->wType);
> -
>    /* use TIME_MS instead */
> -
>    lpMMT->wType = TIME_MS;
> -
>    lpMMT->u.ms = midistream_get_playing_position(lpMidiStrm);
> -
>    TRACE("=> %d ms\n", lpMMT->u.ms);
> -
>    break;
> }
>  LeaveCriticalSection(&lpMidiStrm->lock);
>    }
>