Add mpl_round_to_int

Author: oscargus

src/_backend_agg.h

@@ -780,10 +780,10 @@ inline void RendererAgg::draw_text_image(GCAgg &gc, ImageArray &image, int x, in
         if (gc.cliprect.x1 != 0.0 || gc.cliprect.y1 != 0.0 || gc.cliprect.x2 != 0.0 || gc.cliprect.y2 != 0.0) {
             agg::rect_i clip;
 
-            clip.init(int(mpl_round(gc.cliprect.x1)),
-                      int(mpl_round(height - gc.cliprect.y2)),
-                      int(mpl_round(gc.cliprect.x2)),
-                      int(mpl_round(height - gc.cliprect.y1)));
+            clip.init(mpl_round_to_int(gc.cliprect.x1),
+                      mpl_round_to_int(height - gc.cliprect.y2),
+                      mpl_round_to_int(gc.cliprect.x2),
+                      mpl_round_to_int(height - gc.cliprect.y1));
             text.clip(clip);
         }
 

src/mplutils.h

@@ -29,9 +29,14 @@
 #endif
 
 
+inline int mpl_round_to_int(double v)
+{
+    return (int)(v + ((v >= 0.0) ? 0.5 : -0.5));
+}
+
 inline double mpl_round(double v)
 {
-    return (double)(int)(v + ((v >= 0.0) ? 0.5 : -0.5));
+    return (double)mpl_round_to_int(v);
 }
 
 // 'kind' codes for paths.

src/path_converters.h

@@ -595,7 +595,7 @@ class PathSnapper
         m_snap = should_snap(source, snap_mode, total_vertices);
 
         if (m_snap) {
-            int is_odd = (int)mpl_round(stroke_width) % 2;
+            int is_odd = mpl_round_to_int(stroke_width) % 2;
             m_snap_value = (is_odd) ? 0.5 : 0.0;
         }