build: add freebsd support (#4049)

tests/tests_common.h

@@ -126,6 +126,12 @@ namespace test_utils {
   #define IS_MACOS false
 #endif
 
+#ifdef __FreeBSD__
+  #define IS_FREEBSD true
+#else
+  #define IS_FREEBSD false
+#endif
+
 struct PlatformTestSuite: testing::Test {
   static void SetUpTestSuite() {
     ASSERT_FALSE(platf_deinit);

tests/unit/test_mouse.cpp

@@ -13,7 +13,7 @@ struct MouseHIDTest: PlatformTestSuite, testing::WithParamInterface<util::point_
     //       the alternative `platf::abs_mouse` method seem to work better during tests,
     //       but I'm not sure about real work
     GTEST_SKIP() << "TODO Windows";
-#elif __linux__
+#elif defined(__linux__) || defined(__FreeBSD__)
     // TODO: Inputtino waiting https://github.com/games-on-whales/inputtino/issues/6 is resolved.
     GTEST_SKIP() << "TODO Inputtino";
 #endif
@@ -88,7 +88,7 @@ TEST_P(MouseHIDTest, AbsMoveInputTest) {
     65535,
     65535
   };
-#elif __linux__
+#elif defined(__linux__) || defined(__FreeBSD__)
   platf::touch_port_t abs_port {
     0,
     0,

tests/unit/test_video.cpp

@@ -32,7 +32,7 @@ INSTANTIATE_TEST_SUITE_P(
     &video::amdvce,
     &video::quicksync,
 #endif
-#ifdef __linux__
+#if defined(__linux__) || defined(__FreeBSD__)
     &video::vaapi,
 #endif
 #ifdef __APPLE__