Add MRR guard logic to SF scheduler

Uses a flag to guard the new dVRR scheduler features
from MRR devices. This is to easily allow development on
dVRR devices and MRR devices separately.

Bug: 330224639
Test: atest libsurfaceflinger_unittest
Test: atest CtsSurfaceControlTestsStaging
Test: dumpsys and observe no category or GTE
Change-Id: I8be520b5630c1a8fbde5f0fb2265e803e46983a8
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
index 110f324..2fb80b1 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
@@ -274,6 +274,8 @@
 }
 
 TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     createLegacyAndFrontedEndLayer(1);
     setFrameRateCategory(1, ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH);
 
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
index 9b8ff42..c63aaeb 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
@@ -548,7 +548,41 @@
     EXPECT_EQ(0, frequentLayerCount(time));
 }
 
+TEST_F(LayerHistoryTest, oneLayerExplicitVoteWithCategory_vrrFeatureOff) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, false);
+
+    auto layer = createLayer();
+    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
+    EXPECT_CALL(*layer, getFrameRateForLayerTree())
+            .WillRepeatedly(
+                    Return(Layer::FrameRate(73.4_Hz, Layer::FrameRateCompatibility::Default,
+                                            Seamlessness::OnlySeamless, FrameRateCategory::High)));
+
+    // Set default to Min so it is obvious that the vote reset triggered.
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Min);
+
+    EXPECT_EQ(1, layerCount());
+    EXPECT_EQ(0, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
+                         LayerHistory::LayerUpdateType::Buffer);
+        time += HI_FPS_PERIOD;
+    }
+
+    // There is only 1 LayerRequirement due to the disabled flag frame_rate_category_mrr.
+    ASSERT_EQ(1, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
 TEST_F(LayerHistoryTest, oneLayerExplicitCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     auto layer = createLayer();
     EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
     EXPECT_CALL(*layer, getFrameRateForLayerTree())
@@ -588,6 +622,8 @@
 // This test case should be the same as oneLayerNoVote except instead of layer vote is NoVote,
 // the category is NoPreference.
 TEST_F(LayerHistoryTest, oneLayerCategoryNoPreference) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     auto layer = createLayer();
     EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
     EXPECT_CALL(*layer, getFrameRateForLayerTree())
@@ -617,6 +653,8 @@
 }
 
 TEST_F(LayerHistoryTest, oneLayerExplicitVoteWithCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     auto layer = createLayer();
     EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
     EXPECT_CALL(*layer, getFrameRateForLayerTree())
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 3baa48d..94989aa 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -17,6 +17,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include <common/test/FlagUtils.h>
 #include <renderengine/mock/FakeExternalTexture.h>
 
 #include "FrontEnd/LayerHierarchy.h"
@@ -26,6 +27,8 @@
 #include "LayerHierarchyTest.h"
 #include "ui/GraphicTypes.h"
 
+#include <com_android_graphics_surfaceflinger_flags.h>
+
 #define UPDATE_AND_VERIFY(BUILDER, ...)                                    \
     ({                                                                     \
         SCOPED_TRACE("");                                                  \
@@ -42,6 +45,7 @@
 
 using ftl::Flags;
 using namespace ftl::flag_operators;
+using namespace com::android::graphics::surfaceflinger;
 
 // To run test:
 /**
@@ -668,6 +672,8 @@
 // This test is similar to "frameRate" test case but checks that the setFrameRateCategory API
 // interaction also works correctly with the setFrameRate API within SF frontend.
 TEST_F(LayerSnapshotTest, frameRateWithCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     // ROOT
     // ├── 1
     // │   ├── 11 (frame rate set to 244.f)
@@ -864,6 +870,8 @@
 }
 
 TEST_F(LayerSnapshotTest, frameRateSelectionStrategyWithCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
     // ROOT
     // ├── 1
     // │   ├── 11