SF: Polish Fps class
For consistent comparison (which will later be changed to check ULP
distance instead of the magnitude-dependent threshold), express the
inequality operators in terms of equality, and avoid hashing floats.
Add Hz literals and (namespaced) operators.
Bug: 129481165
Bug: 185535769
Test: libsurfaceflinger_unittest
Test: dumpsys SurfaceFlinger --vsync
Change-Id: I79be5d2dd031218c4054774d2645efb337211538
diff --git a/services/surfaceflinger/tests/unittests/FpsOps.h b/services/surfaceflinger/tests/unittests/FpsOps.h
new file mode 100644
index 0000000..23c2841
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/FpsOps.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "Fps.h"
+
+namespace android {
+
+// Pull Fps operators into its namespace to enable ADL for EXPECT_EQ, EXPECT_LT, etc.
+
+inline bool operator==(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator==(lhs, rhs);
+}
+
+inline bool operator<(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator<(lhs, rhs);
+}
+
+inline bool operator!=(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator!=(lhs, rhs);
+}
+
+inline bool operator>(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator>(lhs, rhs);
+}
+
+inline bool operator<=(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator<=(lhs, rhs);
+}
+
+inline bool operator>=(Fps lhs, Fps rhs) {
+ return fps_approx_ops::operator>=(lhs, rhs);
+}
+
+} // namespace android