[PATCH v2] dmime: Parse lyric track data

[Michael Stefaniuc]

Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>

On 4/30/20 8:41 AM, Alistair Leslie-Hughes wrote:
> Signed-off-by: Alistair Leslie-Hughes <leslie_alistair at hotmail.com>
> ---
>  dlls/dmime/lyricstrack.c | 93 +++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 91 insertions(+), 2 deletions(-)
> 
> diff --git a/dlls/dmime/lyricstrack.c b/dlls/dmime/lyricstrack.c
> index 49f44f52a34..64ce793cfa9 100644
> --- a/dlls/dmime/lyricstrack.c
> +++ b/dlls/dmime/lyricstrack.c
> @@ -37,6 +37,11 @@ static inline IDirectMusicLyricsTrack *impl_from_IDirectMusicTrack8(IDirectMusic
>      return CONTAINING_RECORD(iface, IDirectMusicLyricsTrack, IDirectMusicTrack8_iface);
>  }
>  
> +static inline IDirectMusicLyricsTrack *impl_from_IPersistStream(IPersistStream *iface)
> +{
> +    return CONTAINING_RECORD(iface, IDirectMusicLyricsTrack, dmobj.IPersistStream_iface);
> +}
> +
>  static HRESULT WINAPI lyrics_track_QueryInterface(IDirectMusicTrack8 *iface, REFIID riid,
>          void **ret_iface)
>  {
> @@ -236,10 +241,94 @@ static const IDirectMusicTrack8Vtbl dmtrack8_vtbl = {
>      lyrics_track_Join
>  };
>  
> +static HRESULT parse_lyrics_track_events(IDirectMusicLyricsTrack *This, IStream *stream,
> +                struct chunk_entry *lyric)
> +{
> +    struct chunk_entry chunk = {.parent = lyric};
> +    HRESULT hr;
> +    DMUS_IO_LYRICSTRACK_EVENTHEADER header;
> +    WCHAR name[256];
> +
> +    TRACE("Parsing segment form in %p: %s\n", stream, debugstr_chunk(lyric));
> +
> +    while ((hr = stream_next_chunk(stream, &chunk)) == S_OK) {
> +        if (chunk.id == FOURCC_LIST && chunk.type == DMUS_FOURCC_LYRICSTRACKEVENT_LIST) {
> +            struct chunk_entry child = {.parent = &chunk};
> +
> +            if (FAILED(hr = stream_next_chunk(stream, &child)))
> +                return  hr;
> +
> +            if (child.id != DMUS_FOURCC_LYRICSTRACKEVENTHEADER_CHUNK)
> +                return DMUS_E_UNSUPPORTED_STREAM;
> +
> +            if (FAILED(hr = stream_chunk_get_data(stream, &child, &header, child.size))) {
> +                WARN("Failed to read data of %s\n", debugstr_chunk(&child));
> +                return hr;
> +            }
> +
> +            TRACE("Found DMUS_IO_LYRICSTRACK_EVENTHEADER\n");
> +            TRACE("  - dwFlags 0x%08x\n", header.dwFlags);
> +            TRACE("  - dwTimingFlags 0x%08x\n", header.dwTimingFlags);
> +            TRACE("  - lTimeLogical %d\n", header.lTimeLogical);
> +            TRACE("  - lTimePhysical %d\n", header.lTimePhysical);
> +
> +            if (FAILED(hr = stream_next_chunk(stream, &child)))
> +                return  hr;
> +
> +            if (child.id != DMUS_FOURCC_LYRICSTRACKEVENTTEXT_CHUNK)
> +                return DMUS_E_UNSUPPORTED_STREAM;;
> +
> +            if (FAILED(hr = stream_chunk_get_data(stream, &child, &name, child.size))) {
> +                WARN("Failed to read data of %s\n", debugstr_chunk(&child));
> +                return hr;
> +            }
> +
> +            TRACE("Found DMUS_FOURCC_LYRICSTRACKEVENTTEXT_CHUNK\n");
> +            TRACE("  - name %s\n", debugstr_w(name));
> +        }
> +    }
> +
> +    return SUCCEEDED(hr) ? S_OK : hr;
> +}
> +
> +static HRESULT parse_lyricstrack_list(IDirectMusicLyricsTrack *This, IStream *stream, struct chunk_entry *lyric)
> +{
> +    HRESULT hr;
> +    struct chunk_entry chunk = {.parent = lyric};
> +
> +    TRACE("Parsing segment form in %p: %s\n", stream, debugstr_chunk(lyric));
> +
> +    if (FAILED(hr = stream_next_chunk(stream, &chunk)))
> +        return hr;
> +
> +    if (chunk.id == FOURCC_LIST && chunk.type == DMUS_FOURCC_LYRICSTRACKEVENTS_LIST)
> +        hr = parse_lyrics_track_events(This, stream, &chunk);
> +    else
> +        hr = DMUS_E_UNSUPPORTED_STREAM;
> +
> +    return SUCCEEDED(hr) ? S_OK : hr;
> +}
> +
>  static HRESULT WINAPI lyrics_IPersistStream_Load(IPersistStream *iface, IStream *stream)
>  {
> -	FIXME(": Loading not implemented yet\n");
> -	return S_OK;
> +    IDirectMusicLyricsTrack *This = impl_from_IPersistStream(iface);
> +    HRESULT hr;
> +    struct chunk_entry chunk = {0};
> +
> +    TRACE("%p, %p\n", This, stream);
> +
> +    if (!stream)
> +        return E_POINTER;
> +
> +    if ((hr = stream_get_chunk(stream, &chunk) != S_OK))
> +        return hr;
> +
> +    if (chunk.id == FOURCC_LIST && chunk.type == DMUS_FOURCC_LYRICSTRACK_LIST)
> +        hr = parse_lyricstrack_list(This, stream, &chunk);
> +    else
> +        hr = DMUS_E_UNSUPPORTED_STREAM;
> +
> +    return hr;
>  }
>  
>  static const IPersistStreamVtbl persiststream_vtbl = {
>