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Handle all IPlugView functions from the GUI thread

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Melda plugins will freeze if GetSize wasn't called from the GUI thread
before.
This commit is contained in:
Robbert van der Helm
2021-01-07 22:42:31 +01:00
parent 25af73c86e
commit c375441971
1 changed files with 32 additions and 13 deletions
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src/wine-host/bridges/vst3.cpp
+32 -13
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@@ -585,9 +585,15 @@ void Vst3Bridge::run() {
.get();
},
[&](YaPlugView::GetSize& request) -> YaPlugView::GetSize::Response {
// Melda plugins will refuse to open dialogs of this function is
// not run from the GUI thread
const tresult result =
object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->getSize(&request.size);
do_mutual_recursion_or_handle_in_main_context<tresult>(
[&]() {
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->getSize(
&request.size);
});
return YaPlugView::GetSizeResponse{
.result = result, .updated_size = std::move(request.size)};
@@ -629,24 +635,37 @@ void Vst3Bridge::run() {
Steinberg::owned(new Vst3PlugFrameProxyImpl(
*this, std::move(request.plug_frame_args)));
// TODO: Does this have to be run from the UI thread? Figure out
// if it does
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->setFrame(
object_instances[request.owner_instance_id]
.plug_frame_proxy);
// This likely doesn't have to be run from the GUI thread, but
// since 80% of the `IPlugView` functions have to be we'll do it
// here anyways
return main_context
.run_in_context<tresult>([&]() {
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->setFrame(
object_instances[request.owner_instance_id]
.plug_frame_proxy);
})
.get();
},
[&](YaPlugView::CanResize& request)
-> YaPlugView::CanResize::Response {
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->canResize();
// To prevent weird behaviour we'll perform all size related
// functions from the GUI thread, including this one
return do_mutual_recursion_or_handle_in_main_context<tresult>(
[&]() {
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->canResize();
});
},
[&](YaPlugView::CheckSizeConstraint& request)
-> YaPlugView::CheckSizeConstraint::Response {
const tresult result =
object_instances[request.owner_instance_id]
.plug_view_instance->plug_view->checkSizeConstraint(
&request.rect);
do_mutual_recursion_or_handle_in_main_context<tresult>(
[&]() {
return object_instances[request.owner_instance_id]
.plug_view_instance->plug_view
->checkSizeConstraint(&request.rect);
});
return YaPlugView::CheckSizeConstraintResponse{
.result = result, .updated_rect = std::move(request.rect)};