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dmime: Use linked list for tempotrack.

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Preparation for supporting setting TempoParam on tempotracks.
This commit is contained in:
Yuxuan Shui 2024-02-15 14:37:22 +00:00 committed by Alexandre Julliard
parent 9e79b9ffd9
commit 6a3f067eca
1 changed files with 54 additions and 25 deletions
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79
dlls/dmime/tempotrack.c
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@ -27,12 +27,17 @@ WINE_DECLARE_DEBUG_CHANNEL(dmfile);
* IDirectMusicTempoTrack implementation
*/
struct tempo_entry
{
struct list entry;
DMUS_IO_TEMPO_ITEM item;
};
typedef struct IDirectMusicTempoTrack {
IDirectMusicTrack8 IDirectMusicTrack8_iface;
struct dmobject dmobj; /* IPersistStream only */
LONG ref;
DMUS_IO_TEMPO_ITEM *items;
unsigned int count;
struct list items;
} IDirectMusicTempoTrack;
/* IDirectMusicTempoTrack IDirectMusicTrack8 part: */
@ -81,8 +86,14 @@ static ULONG WINAPI tempo_track_Release(IDirectMusicTrack8 *iface)
TRACE("(%p) ref=%ld\n", This, ref);
if (!ref) {
free(This->items);
if (!ref)
{
struct tempo_entry *item, *next_item;
LIST_FOR_EACH_ENTRY_SAFE(item, next_item, &This->items, struct tempo_entry, entry)
{
list_remove(&item->entry);
free(item);
}
free(This);
}
@ -141,31 +152,34 @@ static HRESULT WINAPI tempo_track_Play(IDirectMusicTrack8 *iface, void *pStateDa
}
static HRESULT WINAPI tempo_track_GetParam(IDirectMusicTrack8 *iface, REFGUID type, MUSIC_TIME music_time,
MUSIC_TIME *next_time, void *param)
MUSIC_TIME *out_next_time, void *param)
{
IDirectMusicTempoTrack *This = impl_from_IDirectMusicTrack8(iface);
DMUS_IO_TEMPO_ITEM *item = This->items, *end = item + This->count;
struct tempo_entry *item, *next_item;
DMUS_TEMPO_PARAM *tempo = param;
MUSIC_TIME next_time = 0;
TRACE("(%p, %s, %ld, %p, %p)\n", This, debugstr_dmguid(type), music_time, next_time, param);
TRACE("(%p, %s, %ld, %p, %p)\n", This, debugstr_dmguid(type), music_time, out_next_time, param);
if (!param) return E_POINTER;
if (!IsEqualGUID(type, &GUID_TempoParam)) return DMUS_E_GET_UNSUPPORTED;
if (item == end) return DMUS_E_NOT_FOUND;
if (list_empty(&This->items)) return DMUS_E_NOT_FOUND;
tempo->mtTime = item->lTime - music_time;
tempo->dblTempo = item->dblTempo;
for (; item < end; item++)
/* if music_time is before the first item, we return the first item. */
LIST_FOR_EACH_ENTRY_SAFE(item, next_item, &This->items, struct tempo_entry, entry)
{
MUSIC_TIME time = item->lTime - music_time;
if (next_time) *next_time = item->lTime - music_time;
if (time > 0) break;
tempo->mtTime = time;
tempo->dblTempo = item->dblTempo;
tempo->mtTime = item->item.lTime - music_time;
tempo->dblTempo = item->item.dblTempo;
next_time = tempo->mtTime;
if (next_time > 0) break;
next_time = 0;
if (item->entry.next == &This->items) break;
next_time = next_item->item.lTime - music_time;
if (next_time > 0) break;
}
if (next_time && item == end) *next_time = 0;
if (out_next_time) *out_next_time = next_time;
return S_OK;
}
@ -315,8 +329,10 @@ static HRESULT WINAPI tempo_IPersistStream_Load(IPersistStream *iface, IStream *
{
IDirectMusicTempoTrack *This = impl_from_IPersistStream(iface);
struct chunk_entry chunk = {0};
unsigned int i;
DMUS_IO_TEMPO_ITEM *items;
ULONG i = 0;
HRESULT hr;
UINT count;
TRACE("%p, %p\n", This, stream);
@ -328,18 +344,30 @@ static HRESULT WINAPI tempo_IPersistStream_Load(IPersistStream *iface, IStream *
if (chunk.id != DMUS_FOURCC_TEMPO_TRACK)
return DMUS_E_UNSUPPORTED_STREAM;
hr = stream_chunk_get_array(stream, &chunk, (void **)&This->items, &This->count,
hr = stream_chunk_get_array(stream, &chunk, (void **)&items, &count,
sizeof(DMUS_IO_TEMPO_ITEM));
if (FAILED(hr))
return hr;
for (i = 0; i < This->count; i++) {
TRACE_(dmfile)("DMUS_IO_TEMPO_ITEM #%u\n", i);
TRACE_(dmfile)(" - lTime = %lu\n", This->items[i].lTime);
TRACE_(dmfile)(" - dblTempo = %g\n", This->items[i].dblTempo);
for (i = 0; i < count; i++)
{
struct tempo_entry *entry = calloc(1, sizeof(*entry));
if (!entry)
{
hr = E_OUTOFMEMORY;
break;
}
entry->item = items[i];
list_add_tail(&This->items, &entry->entry);
TRACE_(dmfile)("DMUS_IO_TEMPO_ITEM #%lu\n", i);
TRACE_(dmfile)(" - lTime = %lu\n", items[i].lTime);
TRACE_(dmfile)(" - dblTempo = %g\n", items[i].dblTempo);
}
return S_OK;
free(items);
return hr;
}
static const IPersistStreamVtbl persiststream_vtbl = {
@ -366,6 +394,7 @@ HRESULT create_dmtempotrack(REFIID lpcGUID, void **ppobj)
dmobject_init(&track->dmobj, &CLSID_DirectMusicTempoTrack,
(IUnknown *)&track->IDirectMusicTrack8_iface);
track->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl;
list_init(&track->items);
hr = IDirectMusicTrack8_QueryInterface(&track->IDirectMusicTrack8_iface, lpcGUID, ppobj);
IDirectMusicTrack8_Release(&track->IDirectMusicTrack8_iface);