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nvnflinger: check for layers before compose

This commit is contained in:
Liam 2024-02-18 11:25:47 -05:00
parent a07f0883b9
commit 940a71422e
5 changed files with 13 additions and 7 deletions

View file

@ -44,6 +44,10 @@ struct Display {
return nullptr;
}
bool HasLayers() {
return !stack.layers.empty();
}
u64 id;
LayerStack stack;
};

View file

@ -33,16 +33,17 @@ void SurfaceFlinger::RemoveDisplay(u64 display_id) {
std::erase_if(m_displays, [&](auto& display) { return display.id == display_id; });
}
void SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
bool SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
u64 display_id) {
auto* const display = this->FindDisplay(display_id);
if (!display) {
return;
if (!display || !display->HasLayers()) {
return false;
}
*out_swap_interval =
m_composer.ComposeLocked(out_compose_speed_scale, *display,
*nvdrv->GetDevice<Nvidia::Devices::nvdisp_disp0>(disp_fd));
return true;
}
void SurfaceFlinger::AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id) {

View file

@ -34,7 +34,7 @@ public:
void AddDisplay(u64 display_id);
void RemoveDisplay(u64 display_id);
void ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
bool ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
void AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id);
void RemoveLayerFromDisplayStack(u64 display_id, s32 consumer_binder_id);

View file

@ -218,10 +218,11 @@ void Container::DestroyBufferQueueLocked(Layer* layer) {
layer->GetProducerBinderId());
}
void Container::ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
bool Container::ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
u64 display_id) {
std::scoped_lock lk{m_lock};
m_surface_flinger->ComposeDisplay(out_swap_interval, out_compose_speed_scale, display_id);
return m_surface_flinger->ComposeDisplay(out_swap_interval, out_compose_speed_scale,
display_id);
}
} // namespace Service::VI

View file

@ -76,7 +76,7 @@ private:
void DestroyBufferQueueLocked(Layer* layer);
public:
void ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
bool ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
private:
std::mutex m_lock{};