From 5d3d866c0204cc40a6cc63807541a7bed9231993 Mon Sep 17 00:00:00 2001
From: Pullakavi Srinivas <spullaka@codeaurora.org>
Date: Wed, 7 Mar 2018 15:15:14 +0530
Subject: [PATCH] hwc2: Avoid overwriting metadata refresh rate.

-- Compute sanitized metadata refresh rate.
-- Populate display's operating refresh rate to all
   the layers that donot support metadata refresh rate.

Change-Id: Iaf17e4e10da543e110fcf6ba7648d60807069f98
---
 sdm/libs/hwc2/hwc_display.cpp | 16 +++++++++++++---
 sdm/libs/hwc2/hwc_display.h   |  1 +
 sdm/libs/hwc2/hwc_layers.cpp  |  1 +
 sdm/libs/hwc2/hwc_layers.h    |  2 ++
 4 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/sdm/libs/hwc2/hwc_display.cpp b/sdm/libs/hwc2/hwc_display.cpp
index decbe5cf..8f3a5073 100644
--- a/sdm/libs/hwc2/hwc_display.cpp
+++ b/sdm/libs/hwc2/hwc_display.cpp
@@ -596,11 +596,10 @@ void HWCDisplay::BuildLayerStack() {
       layer->src_rect.bottom = layer_buffer->height;
     }
 
-    if (layer->frame_rate > metadata_refresh_rate_) {
+    if (hwc_layer->HasMetaDataRefreshRate() && layer->frame_rate > metadata_refresh_rate_) {
       metadata_refresh_rate_ = SanitizeRefreshRate(layer->frame_rate);
-    } else {
-      layer->frame_rate = current_refresh_rate_;
     }
+
     display_rect_ = Union(display_rect_, layer->dst_rect);
     geometry_changes_ |= hwc_layer->GetGeometryChanges();
 
@@ -1051,6 +1050,7 @@ HWC2::Error HWCDisplay::PrepareLayerStack(uint32_t *out_num_types, uint32_t *out
     return HWC2::Error::BadDisplay;
   }
 
+  UpdateRefreshRate();
   if (!skip_prepare_) {
     DisplayError error = display_intf_->Prepare(&layer_stack_);
     if (error != kErrorNone) {
@@ -2135,4 +2135,14 @@ bool HWCDisplay::CanSkipValidate() {
   return true;
 }
 
+void HWCDisplay::UpdateRefreshRate() {
+  for (auto hwc_layer : layer_set_) {
+    if (hwc_layer->HasMetaDataRefreshRate()) {
+      continue;
+    }
+    auto layer = hwc_layer->GetSDMLayer();
+    layer->frame_rate = current_refresh_rate_;
+  }
+}
+
 }  // namespace sdm
diff --git a/sdm/libs/hwc2/hwc_display.h b/sdm/libs/hwc2/hwc_display.h
index f3b15658..fda8f054 100644
--- a/sdm/libs/hwc2/hwc_display.h
+++ b/sdm/libs/hwc2/hwc_display.h
@@ -311,6 +311,7 @@ class HWCDisplay : public DisplayEventHandler {
  private:
   void DumpInputBuffers(void);
   bool CanSkipValidate();
+  void UpdateRefreshRate();
   qService::QService *qservice_ = NULL;
   DisplayClass display_class_;
   uint32_t geometry_changes_ = GeometryChanges::kNone;
diff --git a/sdm/libs/hwc2/hwc_layers.cpp b/sdm/libs/hwc2/hwc_layers.cpp
index 4250335e..aa4fb063 100644
--- a/sdm/libs/hwc2/hwc_layers.cpp
+++ b/sdm/libs/hwc2/hwc_layers.cpp
@@ -735,6 +735,7 @@ DisplayError HWCLayer::SetMetaData(const private_handle_t *pvt_handle, Layer *la
   uint32_t frame_rate = layer->frame_rate;
   if (getMetaData(handle, GET_REFRESH_RATE, &fps) == 0) {
     frame_rate = (fps != 0) ? RoundToStandardFPS(fps) : layer->frame_rate;
+    has_metadata_refresh_rate_ = true;
   }
 
   int32_t interlaced = 0;
diff --git a/sdm/libs/hwc2/hwc_layers.h b/sdm/libs/hwc2/hwc_layers.h
index 92267445..41ec6ede 100644
--- a/sdm/libs/hwc2/hwc_layers.h
+++ b/sdm/libs/hwc2/hwc_layers.h
@@ -99,6 +99,7 @@ class HWCLayer {
   bool IsScalingPresent();
   bool IsRotationPresent();
   bool IsNonIntegralSourceCrop() { return non_integral_source_crop_; }
+  bool HasMetaDataRefreshRate() { return has_metadata_refresh_rate_; }
 
  private:
   Layer *layer_ = nullptr;
@@ -115,6 +116,7 @@ class HWCLayer {
   bool single_buffer_ = false;
   int buffer_fd_ = -1;
   bool non_integral_source_crop_ = false;
+  bool has_metadata_refresh_rate_ = false;
 
   // Composition requested by client(SF)
   HWC2::Composition client_requested_ = HWC2::Composition::Device;