libhwc2.1:vrrController: ensure notifyExpectedPresent is directed to VRR

Invoke the notifyExpectedPresent function and ensure that the call is
directed to the VRR (Variable Refresh Rate) controller

Bug: 316209922
Test: confirm that the VRR controller successfully receives each
notifyExpectedPresent call

Change-Id: I7f41d607a55a4cca74964637e603f1045581410a

5 files changed, 29 insertions, 5 deletions

diff --git a/hwc3/ComposerClient.cpp b/hwc3/ComposerClient.cpp
index dcba5b7..104bac6 100644
--- a/hwc3/ComposerClient.cpp
+++ b/hwc3/ComposerClient.cpp
@@ -84,9 +84,12 @@ ndk::ScopedAStatus ComposerClient::getDisplayConfigurations(
     return TO_BINDER_STATUS(err);
 }
 
-ndk::ScopedAStatus ComposerClient::notifyExpectedPresent(int64_t, const ClockMonotonicTimestamp&,
-                                                         int32_t) {
-    return TO_BINDER_STATUS(HWC2_ERROR_UNSUPPORTED);
+ndk::ScopedAStatus ComposerClient::notifyExpectedPresent(
+        int64_t display, const ClockMonotonicTimestamp& expectedPresentTime,
+        int32_t frameIntervalNs) {
+    DEBUG_DISPLAY_FUNC(display);
+    auto err = mHal->notifyExpectedPresent(display, expectedPresentTime, frameIntervalNs);
+    return TO_BINDER_STATUS(err);
 }
 
 ndk::ScopedAStatus ComposerClient::destroyLayer(int64_t display, int64_t layer) {
diff --git a/hwc3/impl/HalImpl.cpp b/hwc3/impl/HalImpl.cpp
index 259b779..37e7d9f 100644
--- a/hwc3/impl/HalImpl.cpp
+++ b/hwc3/impl/HalImpl.cpp
@@ -431,8 +431,15 @@ int32_t HalImpl::getDisplayConfigurations(int64_t display, int32_t,
     return HWC2_ERROR_NONE;
 }
 
-int32_t HalImpl::notifyExpectedPresent(int64_t, const ClockMonotonicTimestamp&, int32_t) {
-    return HWC2_ERROR_UNSUPPORTED;
+int32_t HalImpl::notifyExpectedPresent(int64_t display,
+                                       const ClockMonotonicTimestamp& expectedPresentTime,
+                                       int32_t frameIntervalNs) {
+    ExynosDisplay* halDisplay;
+    RET_IF_ERR(getHalDisplay(display, halDisplay));
+
+    RET_IF_ERR(
+            halDisplay->notifyExpectedPresent(expectedPresentTime.timestampNanos, frameIntervalNs));
+    return HWC2_ERROR_NONE;
 }
 
 int32_t HalImpl::getDisplayConnectionType(int64_t display, DisplayConnectionType* outType) {
diff --git a/libhwc2.1/libdevice/ExynosDisplay.h b/libhwc2.1/libdevice/ExynosDisplay.h
index cdb62d6..b329f11 100644
--- a/libhwc2.1/libdevice/ExynosDisplay.h
+++ b/libhwc2.1/libdevice/ExynosDisplay.h
@@ -1322,6 +1322,11 @@ class ExynosDisplay {
 
         displaycolor::DisplayType getDcDisplayType() const;
 
+        virtual int32_t notifyExpectedPresent(int64_t __unused timestamp,
+                                              int32_t __unused frameIntervalNs) {
+            return HWC2_ERROR_UNSUPPORTED;
+        };
+
     protected:
         virtual bool getHDRException(ExynosLayer *layer);
         virtual int32_t getActiveConfigInternal(hwc2_config_t* outConfig);
diff --git a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.cpp b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.cpp
index d15c4fe..d440ac2 100644
--- a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.cpp
+++ b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.cpp
@@ -708,6 +708,13 @@ void ExynosPrimaryDisplay::onVsync(int64_t timestamp) {
     }
 }
 
+int32_t ExynosPrimaryDisplay::notifyExpectedPresent(int64_t timestamp, int32_t frameIntervalNs) {
+    if (mVariableRefreshRateController) {
+        mVariableRefreshRateController->notifyExpectedPresent(timestamp, frameIntervalNs);
+    }
+    return NO_ERROR;
+}
+
 int32_t ExynosPrimaryDisplay::setLhbmDisplayConfigLocked(uint32_t peakRate) {
     auto hwConfig = mDisplayInterface->getActiveModeId();
     auto config = getConfigId(peakRate, mDisplayConfigs[hwConfig].width,
diff --git a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.h b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.h
index 2d5b657..f3b412d 100644
--- a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.h
+++ b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplay.h
@@ -80,6 +80,8 @@ class ExynosPrimaryDisplay : public ExynosDisplay {
 
         virtual void onVsync(int64_t timestamp) override;
 
+        int32_t notifyExpectedPresent(int64_t timestamp, int32_t frameIntervalNs) override;
+
     protected:
         /* setPowerMode(int32_t mode)
          * Descriptor: HWC2_FUNCTION_SET_POWER_MODE