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quartz/filtergraph: Always sort filter list before use. 

Some applications (e.g. Earth 2150) call IPin::Connect directly
instead of IFilterGraph::ConnectDirect.

Signed-off-by: Anton Baskanov <baskanov@gmail.com>
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Anton Baskanov 2020-06-12 14:57:09 +07:00 committed by Alexandre Julliard
parent 2d79e04bfe
commit ff38669c1a
2 changed files with 27 additions and 32 deletions
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48
dlls/quartz/filtergraph.c
View File

@ -151,7 +151,7 @@ typedef struct _ITF_CACHE_ENTRY {
struct filter
{
struct list entry, sorted_entry;
struct list entry;
IBaseFilter *filter;
IMediaSeeking *seeking;
WCHAR *name;
@ -187,17 +187,7 @@ typedef struct _IFilterGraphImpl {
LONG ref;
IUnknown *punkFilterMapper2;
/* We keep two lists of filters, one unsorted and one topologically sorted.
* The former is necessary for functions like IGraphBuilder::Connect() and
* IGraphBuilder::Render() that iterate through the filter list but may
* add to it while doing so; the latter is for functions like
* IMediaControl::Run() that should propagate messages to all filters
* (including unconnected ones) but must do so in topological order from
* sinks to sources. We can easily guarantee that the loop in Connect() will
* touch each filter exactly once so long as we aren't reordering it, but
* using the sorted filters list there would be hard. This seems to be the
* easiest and clearest solution. */
struct list filters, sorted_filters;
struct list filters;
unsigned int name_index;
IReferenceClock *refClock;
@ -686,7 +676,6 @@ static HRESULT WINAPI FilterGraph2_AddFilter(IFilterGraph2 *iface,
IBaseFilter_AddRef(entry->filter = filter);
list_add_head(&graph->filters, &entry->entry);
list_add_head(&graph->sorted_filters, &entry->sorted_entry);
entry->sorting = FALSE;
entry->seeking = NULL;
++graph->version;
@ -768,7 +757,6 @@ static HRESULT WINAPI FilterGraph2_RemoveFilter(IFilterGraph2 *iface, IBaseFilte
if (entry->seeking)
IMediaSeeking_Release(entry->seeking);
list_remove(&entry->entry);
list_remove(&entry->sorted_entry);
CoTaskMemFree(entry->name);
heap_free(entry);
This->version++;
@ -897,7 +885,7 @@ static struct filter *find_sorted_filter(IFilterGraphImpl *graph, IBaseFilter *i
{
struct filter *filter;
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
if (filter->filter == iface)
return filter;
@ -941,21 +929,21 @@ static void sort_filter_recurse(IFilterGraphImpl *graph, struct filter *filter,
filter->sorting = FALSE;
list_remove(&filter->sorted_entry);
list_add_head(sorted, &filter->sorted_entry);
list_remove(&filter->entry);
list_add_head(sorted, &filter->entry);
}
static void sort_filters(IFilterGraphImpl *graph)
{
struct list sorted = LIST_INIT(sorted), *cursor;
while ((cursor = list_head(&graph->sorted_filters)))
while ((cursor = list_head(&graph->filters)))
{
struct filter *filter = LIST_ENTRY(cursor, struct filter, sorted_entry);
struct filter *filter = LIST_ENTRY(cursor, struct filter, entry);
sort_filter_recurse(graph, filter, &sorted);
}
list_move_tail(&graph->sorted_filters, &sorted);
list_move_tail(&graph->filters, &sorted);
}
/* NOTE: despite the implication, it doesn't matter which
@ -1008,9 +996,6 @@ static HRESULT WINAPI FilterGraph2_ConnectDirect(IFilterGraph2 *iface, IPin *ppi
}
}
if (SUCCEEDED(hr))
sort_filters(This);
return hr;
}
@ -5138,9 +5123,11 @@ static HRESULT WINAPI MediaFilter_Stop(IMediaFilter *iface)
return S_OK;
}
sort_filters(graph);
if (graph->state == State_Running)
{
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
filter_hr = IBaseFilter_Pause(filter->filter);
if (hr == S_OK)
@ -5148,7 +5135,7 @@ static HRESULT WINAPI MediaFilter_Stop(IMediaFilter *iface)
}
}
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
filter_hr = IBaseFilter_Stop(filter->filter);
if (hr == S_OK)
@ -5194,6 +5181,7 @@ static HRESULT WINAPI MediaFilter_Pause(IMediaFilter *iface)
return S_OK;
}
sort_filters(graph);
update_render_count(graph);
if (graph->defaultclock && !graph->refClock)
@ -5207,7 +5195,7 @@ static HRESULT WINAPI MediaFilter_Pause(IMediaFilter *iface)
graph->current_pos += graph->stream_elapsed;
}
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
filter_hr = IBaseFilter_Pause(filter->filter);
if (hr == S_OK)
@ -5238,6 +5226,7 @@ static HRESULT WINAPI MediaFilter_Run(IMediaFilter *iface, REFERENCE_TIME start)
}
graph->EcCompleteCount = 0;
sort_filters(graph);
update_render_count(graph);
if (graph->defaultclock && !graph->refClock)
@ -5251,7 +5240,7 @@ static HRESULT WINAPI MediaFilter_Run(IMediaFilter *iface, REFERENCE_TIME start)
stream_start += 500000;
}
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
filter_hr = IBaseFilter_Run(filter->filter, stream_start);
if (hr == S_OK)
@ -5278,9 +5267,11 @@ static HRESULT WINAPI MediaFilter_GetState(IMediaFilter *iface, DWORD timeout, F
EnterCriticalSection(&graph->cs);
sort_filters(graph);
*state = graph->state;
LIST_FOR_EACH_ENTRY(filter, &graph->sorted_filters, struct filter, sorted_entry)
LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
{
FILTER_STATE filter_state;
int wait;
@ -5753,7 +5744,6 @@ static HRESULT filter_graph_common_create(IUnknown *outer, IUnknown **out, BOOL
fimpl->IVideoFrameStep_iface.lpVtbl = &VideoFrameStep_vtbl;
fimpl->ref = 1;
list_init(&fimpl->filters);
list_init(&fimpl->sorted_filters);
fimpl->name_index = 1;
fimpl->refClock = NULL;
fimpl->hEventCompletion = CreateEventW(0, TRUE, FALSE, 0);

11
dlls/quartz/tests/filtergraph.c
View File

@ -3166,7 +3166,9 @@ static void test_filter_state(void)
IFilterGraph2_AddFilter(graph, &source.IBaseFilter_iface, NULL);
IFilterGraph2_AddFilter(graph, &sink.IBaseFilter_iface, NULL);
IFilterGraph2_AddFilter(graph, &dummy.IBaseFilter_iface, NULL);
IFilterGraph2_ConnectDirect(graph, &source_pin.IPin_iface, &sink_pin.IPin_iface, NULL);
/* Using IPin::Connect instead of IFilterGraph2::ConnectDirect to show that */
/* FilterGraph does not rely on ::ConnectDirect to track filter connections. */
IPin_Connect(&source_pin.IPin_iface, &sink_pin.IPin_iface, NULL);
check_filter_state(graph, State_Stopped);
@ -3241,9 +3243,12 @@ static void test_filter_state(void)
IFilterGraph2_QueryInterface(graph, &IID_IMediaFilter, (void **)&filter);
IFilterGraph2_QueryInterface(graph, &IID_IMediaControl, (void **)&control);
IFilterGraph2_AddFilter(graph, &source.IBaseFilter_iface, NULL);
/* Add the filters in reverse order this time. */
IFilterGraph2_AddFilter(graph, &sink.IBaseFilter_iface, NULL);
IFilterGraph2_ConnectDirect(graph, &source_pin.IPin_iface, &sink_pin.IPin_iface, NULL);
IFilterGraph2_AddFilter(graph, &source.IBaseFilter_iface, NULL);
/* Using IPin::Connect instead of IFilterGraph2::ConnectDirect to show that */
/* FilterGraph does not rely on ::ConnectDirect to track filter connections. */
IPin_Connect(&source_pin.IPin_iface, &sink_pin.IPin_iface, NULL);
hr = IMediaFilter_Pause(filter);
ok(hr == S_OK, "Got hr %#x.\n", hr);