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filter/dynamic-mask: Prevent recursive filter graphs

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2021-10-17 11:39:05 +02:00
parent 6a6929105a
commit e3563c7cf4
2 changed files with 55 additions and 22 deletions
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74
source/filters/filter-dynamic-mask.cpp
View file

@ -89,7 +89,10 @@ dynamic_mask_instance::dynamic_mask_instance(obs_data_t* settings, obs_source_t*
update(settings);
}
dynamic_mask_instance::~dynamic_mask_instance() {}
dynamic_mask_instance::~dynamic_mask_instance()
{
release();
}
void dynamic_mask_instance::load(obs_data_t* settings)
{
@ -101,27 +104,11 @@ void dynamic_mask_instance::migrate(obs_data_t* data, uint64_t version) {}
void dynamic_mask_instance::update(obs_data_t* settings)
{
// Update source.
try {
auto input = std::make_shared<obs::deprecated_source>(obs_data_get_string(settings, ST_KEY_INPUT));
auto gctx = streamfx::obs::gs::context();
auto capture = std::make_shared<streamfx::gfx::source_texture>(input, _self);
input->events.rename += std::bind(&dynamic_mask_instance::input_renamed, this, std::placeholders::_1,
std::placeholders::_2, std::placeholders::_3);
_input = input;
_input_capture = capture;
activate();
show();
} catch (std::exception const& ex) {
deactivate();
hide();
_input_capture.reset();
_input.reset();
DLOG_ERROR("Failed to update input: %s", ex.what());
if (auto v = obs_data_get_string(settings, ST_KEY_INPUT); (v != nullptr) && (strlen(v) > 0)) {
if (!acquire(v))
DLOG_ERROR("Failed to acquire Input source '%s'.", v);
} else {
release();
}
// Update data store
@ -411,6 +398,49 @@ void streamfx::filter::dynamic_mask::dynamic_mask_instance::deactivate()
_input_ac.reset();
}
bool dynamic_mask_instance::acquire(std::string_view name)
try {
// Prevent us from creating a circle.
if (auto v = obs_source_get_name(obs_filter_get_parent(_self)); (v != nullptr) && (name == v)) {
return false;
}
// Acquire a reference to the actual source.
auto input = std::make_shared<obs::deprecated_source>(std::string(name), true, true);
// Acquire a texture renderer for the source, with the parent source as the parent.
auto capture = std::make_shared<streamfx::gfx::source_texture>(input, obs_filter_get_parent(_self));
// Listed to the rename event.
input->events.rename += std::bind(&dynamic_mask_instance::input_renamed, this, std::placeholders::_1,
std::placeholders::_2, std::placeholders::_3);
// Update our local storage.
_input = input;
_input_capture = capture;
// Do the necessary things.
activate();
show();
return true;
} catch (const std::exception&) {
release();
return false;
} catch (...) {
release();
return false;
}
void dynamic_mask_instance::release()
{
_input.reset();
_input_capture.reset();
deactivate();
hide();
}
dynamic_mask_factory::dynamic_mask_factory()
{
_info.id = S_PREFIX "filter-dynamic-mask";

3
source/filters/filter-dynamic-mask.hpp
View file

@ -85,6 +85,9 @@ namespace streamfx::filter::dynamic_mask {
void hide() override;
void activate() override;
void deactivate() override;
bool acquire(std::string_view name);
void release();
};
class dynamic_mask_factory : public obs::source_factory<filter::dynamic_mask::dynamic_mask_factory,