diff --git a/src/lib/sw_engine/tvgSwCommon.h b/src/lib/sw_engine/tvgSwCommon.h
index 168a31f9..6f26e8c4 100644
--- a/src/lib/sw_engine/tvgSwCommon.h
+++ b/src/lib/sw_engine/tvgSwCommon.h
@@ -273,6 +273,7 @@ SwFixed mathDiff(SwFixed angle1, SwFixed angle2);
 SwFixed mathLength(SwPoint& pt);
 bool mathSmallCubic(SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed& angleOut);
 SwFixed mathMean(SwFixed angle1, SwFixed angle2);
+SwPoint mathTransform(const Point* to, const Matrix* transform);
 
 void shapeReset(SwShape* shape);
 bool shapeGenOutline(SwShape* shape, const Shape* sdata, unsigned tid, const Matrix* transform);
@@ -353,14 +354,4 @@ static inline void rasterRGBA32(uint32_t *dst, uint32_t val, uint32_t offset, in
 #endif
 }
 
-static inline SwPoint mathTransform(const Point* to, const Matrix* transform)
-{
-    if (!transform) return {TO_SWCOORD(to->x), TO_SWCOORD(to->y)};
-
-    auto tx = ((to->x * transform->e11 + to->y * transform->e12 + transform->e13) + 0.5f);
-    auto ty = ((to->x * transform->e21 + to->y * transform->e22 + transform->e23) + 0.5f);
-
-    return {TO_SWCOORD(tx), TO_SWCOORD(ty)};
-}
-
 #endif /* _TVG_SW_COMMON_H_ */
diff --git a/src/lib/sw_engine/tvgSwMath.cpp b/src/lib/sw_engine/tvgSwMath.cpp
index 56ce40fc..3ba1b868 100644
--- a/src/lib/sw_engine/tvgSwMath.cpp
+++ b/src/lib/sw_engine/tvgSwMath.cpp
@@ -19,6 +19,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+#include <math.h>
 #include "tvgSwCommon.h"
 
 
@@ -414,4 +415,15 @@ SwFixed mathDiff(SwFixed angle1, SwFixed angle2)
     if (delta > SW_ANGLE_PI) delta -= SW_ANGLE_2PI;
 
     return delta;
-}
\ No newline at end of file
+}
+
+
+SwPoint mathTransform(const Point* to, const Matrix* transform)
+{
+    if (!transform) return {TO_SWCOORD(to->x), TO_SWCOORD(to->y)};
+
+    auto tx = round(to->x * transform->e11 + to->y * transform->e12 + transform->e13);
+    auto ty = round(to->x * transform->e21 + to->y * transform->e22 + transform->e23);
+
+    return {TO_SWCOORD(tx), TO_SWCOORD(ty)};
+}