1 files changed, 8 insertions, 0 deletions
diff --git a/thirdparty/thorvg/src/common/tvgMath.cpp b/thirdparty/thorvg/src/common/tvgMath.cpp
index c56b32249f..0254cce9b8 100644
--- a/thirdparty/thorvg/src/common/tvgMath.cpp
+++ b/thirdparty/thorvg/src/common/tvgMath.cpp
@@ -133,3 +133,11 @@ Point operator*(const Point& pt, const Matrix& m)
     auto ty = pt.x * m.e21 + pt.y * m.e22 + m.e23;
     return {tx, ty};
 }
+
+uint8_t mathLerp(const uint8_t &start, const uint8_t &end, float t)
+{
+    auto result = static_cast<int>(start + (end - start) * t);
+    if (result > 255) result = 255;
+    else if (result < 0) result = 0;
+    return static_cast<uint8_t>(result);
+}