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-rw-r--r--src/emu/render.cpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/emu/render.cpp b/src/emu/render.cpp
index 5eac2f39d8e..62ad1e688cb 100644
--- a/src/emu/render.cpp
+++ b/src/emu/render.cpp
@@ -2583,7 +2583,15 @@ float render_manager::ui_aspect(render_container *rc)
// if we have a valid pixel aspect, apply that and return
if (m_ui_target->pixel_aspect() != 0.0f)
- aspect /= m_ui_target->pixel_aspect();
+ {
+ float pixel_aspect = m_ui_target->pixel_aspect();
+
+ if (orient & ORIENTATION_SWAP_XY)
+ pixel_aspect = 1.0f / pixel_aspect;
+
+ return aspect /= pixel_aspect;
+ }
+
} else {
// single screen container