From d5a5e3215c023c08f74ebed46d58cf224030071f Mon Sep 17 00:00:00 2001
From: Hermet Park <hermet@lottiefiles.com>
Date: Thu, 12 Jun 2025 23:03:15 +0900
Subject: [PATCH] renderer: hotfix

added exceptional handling
---
 src/renderer/tvgRender.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/renderer/tvgRender.h b/src/renderer/tvgRender.h
index 46bd0e82..f45dae6e 100644
--- a/src/renderer/tvgRender.h
+++ b/src/renderer/tvgRender.h
@@ -104,7 +104,11 @@ struct RenderRegion
 
     static constexpr RenderRegion intersect(const RenderRegion& lhs, const RenderRegion& rhs)
     {
-        return {{std::max(lhs.min.x, rhs.min.x), std::max(lhs.min.y, rhs.min.y)}, {std::min(lhs.max.x, rhs.max.x), std::min(lhs.max.y, rhs.max.y)}};
+        RenderRegion ret = {{std::max(lhs.min.x, rhs.min.x), std::max(lhs.min.y, rhs.min.y)}, {std::min(lhs.max.x, rhs.max.x), std::min(lhs.max.y, rhs.max.y)}};
+        // Not intersected: collapse to zero-area region
+        if (ret.min.x > ret.max.x) ret.max.x = ret.min.x;
+        if (ret.min.y > ret.max.y) ret.max.y = ret.min.y;
+        return ret;
     }
 
     void intersect(const RenderRegion& rhs);