Merge "Support HIGH_INTERACTIVE category in native" into main
diff --git a/libs/nativewindow/include/system/window.h b/libs/nativewindow/include/system/window.h
index a98ea86..969a5cf 100644
--- a/libs/nativewindow/include/system/window.h
+++ b/libs/nativewindow/include/system/window.h
@@ -1095,10 +1095,19 @@
     ANATIVEWINDOW_FRAME_RATE_CATEGORY_NORMAL = 3,
 
     /**
+     * Indicates that, as a result of a user interaction, an animation is likely to start.
+     * This category is a signal that a user interaction heuristic determined the need of a
+     * high refresh rate, and is not an explicit request from the app.
+     * As opposed to FRAME_RATE_CATEGORY_HIGH, this vote may be ignored in favor of
+     * more explicit votes.
+     */
+    ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH_HINT = 4,
+
+    /**
      * Indicates a frame rate suitable for animations that require a high frame rate, which may
      * increase smoothness but may also increase power usage.
      */
-    ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH = 4
+    ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH = 5
 };
 
 /*
diff --git a/services/surfaceflinger/Scheduler/LayerInfo.cpp b/services/surfaceflinger/Scheduler/LayerInfo.cpp
index 2dd3c62..9c4f7a5 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfo.cpp
@@ -532,6 +532,8 @@
             return FrameRateCategory::Low;
         case ANATIVEWINDOW_FRAME_RATE_CATEGORY_NORMAL:
             return FrameRateCategory::Normal;
+        case ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH_HINT:
+            return FrameRateCategory::HighHint;
         case ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH:
             return FrameRateCategory::High;
         default:
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index e06221a..c3709e5 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -420,6 +420,11 @@
     const float seamlessness = isSeamlessSwitch ? 1.0f : kSeamedSwitchPenalty;
 
     if (layer.vote == LayerVoteType::ExplicitCategory) {
+        // HighHint is considered later for touch boost.
+        if (layer.frameRateCategory == FrameRateCategory::HighHint) {
+            return 0.f;
+        }
+
         if (getFrameRateCategoryRange(layer.frameRateCategory).includes(refreshRate)) {
             return 1.f;
         }
@@ -507,6 +512,7 @@
     int explicitExact = 0;
     int explicitGteLayers = 0;
     int explicitCategoryVoteLayers = 0;
+    int interactiveLayers = 0;
     int seamedFocusedLayers = 0;
     int categorySmoothSwitchOnlyLayers = 0;
 
@@ -534,7 +540,13 @@
                 explicitGteLayers++;
                 break;
             case LayerVoteType::ExplicitCategory:
-                explicitCategoryVoteLayers++;
+                if (layer.frameRateCategory == FrameRateCategory::HighHint) {
+                    // HighHint does not count as an explicit signal from an app. It may be
+                    // be a touch signal.
+                    interactiveLayers++;
+                } else {
+                    explicitCategoryVoteLayers++;
+                }
                 if (layer.frameRateCategory == FrameRateCategory::NoPreference) {
                     // Count this layer for Min vote as well. The explicit vote avoids
                     // touch boost and idle for choosing a category, while Min vote is for correct
@@ -831,13 +843,14 @@
     const auto touchRefreshRates = rankFrameRates(anchorGroup, RefreshRateOrder::Descending);
     using fps_approx_ops::operator<;
 
-    if (signals.touch && explicitDefaultVoteLayers == 0 && explicitCategoryVoteLayers == 0 &&
+    const bool hasInteraction = signals.touch || interactiveLayers > 0;
+    if (hasInteraction && explicitDefaultVoteLayers == 0 && explicitCategoryVoteLayers == 0 &&
         touchBoostForExplicitExact &&
         scores.front().frameRateMode.fps < touchRefreshRates.front().frameRateMode.fps) {
         ALOGV("Touch Boost");
         ATRACE_FORMAT_INSTANT("%s (Touch Boost [late])",
                               to_string(touchRefreshRates.front().frameRateMode.fps).c_str());
-        return {touchRefreshRates, GlobalSignals{.touch = true}};
+        return {touchRefreshRates, GlobalSignals{.touch = signals.touch}};
     }
 
     // If we never scored any layers, and we don't favor high refresh rates, prefer to stay with the
@@ -1512,6 +1525,7 @@
             return FpsRange{60_Hz, 90_Hz};
         case FrameRateCategory::Low:
             return FpsRange{30_Hz, 30_Hz};
+        case FrameRateCategory::HighHint:
         case FrameRateCategory::NoPreference:
         case FrameRateCategory::Default:
             LOG_ALWAYS_FATAL("Should not get fps range for frame rate category: %s",
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/Fps.h b/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
index 2806450..84ef89f 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
@@ -88,6 +88,7 @@
     NoPreference,
     Low,
     Normal,
+    HighHint,
     High,
 
     ftl_last = High
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index ba32c68..55b20b3 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -650,7 +650,7 @@
     // │   └── 13
     // └── 2
     setFrameRate(11, 244.f, 0, 0);
-    setFrameRateCategory(122, 3 /* Normal */);
+    setFrameRateCategory(122, ANATIVEWINDOW_FRAME_RATE_CATEGORY_NORMAL);
 
     UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
     // verify parent 1 gets no vote
@@ -845,7 +845,7 @@
     // │   │       └── 1221
     // │   └── 13
     // └── 2
-    setFrameRateCategory(12, 4 /* high */);
+    setFrameRateCategory(12, ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH);
     setFrameRate(122, 123.f, 0, 0);
     setFrameRateSelectionStrategy(12, 1 /* OverrideChildren */);
 
@@ -887,7 +887,7 @@
     // │   │       └── 1221
     // │   └── 13
     // └── 2
-    setFrameRateCategory(12, 0 /* default */);
+    setFrameRateCategory(12, ANATIVEWINDOW_FRAME_RATE_CATEGORY_DEFAULT);
     setFrameRateSelectionStrategy(12, 0 /* Default */);
     UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
     // verify parent 1 gets no vote
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
index 0cacf81..1e526ba 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
@@ -1607,6 +1607,82 @@
     }
 }
 
+TEST_P(RefreshRateSelectorTest, getBestFrameRateMode_withFrameRateCategory_HighHint) {
+    auto selector = createSelector(makeModes(kMode24, kMode30, kMode60, kMode120), kModeId60);
+
+    std::vector<LayerRequirement> layers = {{.weight = 1.f}, {.weight = 1.f}};
+    auto& lr1 = layers[0];
+    auto& lr2 = layers[1];
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::NoVote;
+    lr2.name = "NoVote";
+    auto actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    // Gets touch boost
+    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::ExplicitDefault;
+    lr2.desiredRefreshRate = 30_Hz;
+    lr2.name = "30Hz ExplicitDefault";
+    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    EXPECT_EQ(30_Hz, actualFrameRateMode.fps);
+    EXPECT_EQ(kModeId30, actualFrameRateMode.modePtr->getId());
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::ExplicitCategory;
+    lr2.frameRateCategory = FrameRateCategory::HighHint;
+    lr2.name = "ExplicitCategory HighHint#2";
+    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    // Gets touch boost
+    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::ExplicitCategory;
+    lr2.frameRateCategory = FrameRateCategory::Low;
+    lr2.name = "ExplicitCategory Low";
+    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    EXPECT_EQ(30_Hz, actualFrameRateMode.fps);
+    EXPECT_EQ(kModeId30, actualFrameRateMode.modePtr->getId());
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::ExplicitExactOrMultiple;
+    lr2.desiredRefreshRate = 30_Hz;
+    lr2.name = "30Hz ExplicitExactOrMultiple";
+    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    // Gets touch boost
+    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+
+    lr1.vote = LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = LayerVoteType::ExplicitExact;
+    lr2.desiredRefreshRate = 30_Hz;
+    lr2.name = "30Hz ExplicitExact";
+    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    if (selector.supportsAppFrameRateOverrideByContent()) {
+        // Gets touch boost
+        EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
+        EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+    } else {
+        EXPECT_EQ(30_Hz, actualFrameRateMode.fps);
+        EXPECT_EQ(kModeId30, actualFrameRateMode.modePtr->getId());
+    }
+}
+
 TEST_P(RefreshRateSelectorTest,
        getBestFrameRateMode_withFrameRateCategory_smoothSwitchOnly_60_120_nonVrr) {
     if (GetParam() != Config::FrameRateOverride::Enabled) {