nvnflinger: check for layers before compose
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a07f0883b9
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@ -44,6 +44,10 @@ struct Display {
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return nullptr;
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}
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bool HasLayers() {
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return !stack.layers.empty();
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}
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u64 id;
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LayerStack stack;
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};
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@ -33,16 +33,17 @@ void SurfaceFlinger::RemoveDisplay(u64 display_id) {
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std::erase_if(m_displays, [&](auto& display) { return display.id == display_id; });
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}
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void SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
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bool SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
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u64 display_id) {
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auto* const display = this->FindDisplay(display_id);
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if (!display) {
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return;
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if (!display || !display->HasLayers()) {
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return false;
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}
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*out_swap_interval =
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m_composer.ComposeLocked(out_compose_speed_scale, *display,
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*nvdrv->GetDevice<Nvidia::Devices::nvdisp_disp0>(disp_fd));
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return true;
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}
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void SurfaceFlinger::AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id) {
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@ -34,7 +34,7 @@ public:
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void AddDisplay(u64 display_id);
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void RemoveDisplay(u64 display_id);
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void ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
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bool ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
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void AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id);
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void RemoveLayerFromDisplayStack(u64 display_id, s32 consumer_binder_id);
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@ -218,10 +218,11 @@ void Container::DestroyBufferQueueLocked(Layer* layer) {
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layer->GetProducerBinderId());
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}
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void Container::ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
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bool Container::ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
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u64 display_id) {
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std::scoped_lock lk{m_lock};
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m_surface_flinger->ComposeDisplay(out_swap_interval, out_compose_speed_scale, display_id);
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return m_surface_flinger->ComposeDisplay(out_swap_interval, out_compose_speed_scale,
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display_id);
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}
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} // namespace Service::VI
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@ -76,7 +76,7 @@ private:
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void DestroyBufferQueueLocked(Layer* layer);
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public:
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void ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
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bool ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
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private:
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std::mutex m_lock{};
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