drm_hwcomposer: Move client flattening closer to the frontend
Remove unnecessary code from DrmCompositor.
Drops ~100 LoC.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/DrmHwcTwo.h b/DrmHwcTwo.h
index 19355cd..0d213fd 100644
--- a/DrmHwcTwo.h
+++ b/DrmHwcTwo.h
@@ -293,7 +293,40 @@
return total_stats_;
}
+ /* returns true if composition should be sent to client */
+ bool ProcessClientFlatteningState(bool skip) {
+ int flattenning_state = flattenning_state_;
+ if (flattenning_state == ClientFlattenningState::Disabled) {
+ return false;
+ }
+
+ if (skip) {
+ flattenning_state_ = ClientFlattenningState::NotRequired;
+ return false;
+ }
+
+ if (flattenning_state == ClientFlattenningState::ClientRefreshRequested) {
+ flattenning_state_ = ClientFlattenningState::Flattened;
+ return true;
+ }
+
+ flattening_vsync_worker_.VSyncControl(true);
+ flattenning_state_ = ClientFlattenningState::VsyncCountdownMax;
+ return false;
+ }
+
private:
+ enum ClientFlattenningState : int32_t {
+ Disabled = -3,
+ NotRequired = -2,
+ Flattened = -1,
+ ClientRefreshRequested = 0,
+ VsyncCountdownMax = 60, /* 1 sec @ 60FPS */
+ };
+
+ std::atomic_int flattenning_state_{ClientFlattenningState::NotRequired};
+ VSyncWorker flattening_vsync_worker_;
+
void AddFenceToPresentFence(UniqueFd fd);
constexpr static size_t MATRIX_SIZE = 16;