Add missing function to free FontRenderer

src/font_renderer.cpp

@@ -9,6 +9,11 @@ FontRenderer *FontRendererNew(unsigned int flags) {
     return (FontRenderer *) font_renderer;
 }
 
+void FontRendererFree(FontRenderer *fr_) {
+    font_renderer_alpha *font_renderer = (font_renderer_alpha *) fr_;
+    delete font_renderer;    
+}
+
 int FontRendererLoadFont(FontRenderer *fr_, const char *filename) {
     font_renderer_alpha *font_renderer = (font_renderer_alpha *) fr_;
     bool success = font_renderer->load_font(filename);

src/font_renderer.h

@@ -21,6 +21,7 @@ enum {
 };
 
 FontRenderer *FontRendererNew(unsigned int flags);
+void FontRendererFree(FontRenderer *);
 int FontRendererLoadFont(FontRenderer *, const char *filename);
 int FontRendererGetFontHeight(FontRenderer *, float size);
 int FontRendererBakeFontBitmap(FontRenderer *, int font_height,

src/renderer.c

@@ -212,6 +212,7 @@ void ren_free_font(RenFont *font) {
     }
   }
   free(font->data);
+  FontRendererFree(font->renderer);
   free(font);
 }