input_common: Map sticks correctly when mapped sideways

1 files changed, 16 insertions, 0 deletions

diff --git a/src/input_common/drivers/gc_adapter.cpp b/src/input_common/drivers/gc_adapter.cpp
index 155caae42..8abd41726 100644
--- a/src/input_common/drivers/gc_adapter.cpp
+++ b/src/input_common/drivers/gc_adapter.cpp
@@ -524,4 +524,20 @@ Common::Input::ButtonNames GCAdapter::GetUIName(const Common::ParamPackage& para
     return Common::Input::ButtonNames::Invalid;
 }
 
+bool GCAdapter::IsStickInverted(const Common::ParamPackage& params) {
+    if (!params.Has("port")) {
+        return false;
+    }
+
+    const auto x_axis = static_cast<PadAxes>(params.Get("axis_x", 0));
+    const auto y_axis = static_cast<PadAxes>(params.Get("axis_y", 0));
+    if (x_axis != PadAxes::StickY && x_axis != PadAxes::SubstickY) {
+        return false;
+    }
+    if (y_axis != PadAxes::StickX && y_axis != PadAxes::SubstickX) {
+        return false;
+    }
+    return true;
+}
+
 } // namespace InputCommon