fix nearest_neighbour upscaling method

1 files changed, 4 insertions, 1 deletions

diff --git a/src/imv.c b/src/imv.c
index 4231fd4..5522223 100644
--- a/src/imv.c
+++ b/src/imv.c
@@ -92,6 +92,7 @@ struct imv {
   /* dirty state flags */
   bool need_redraw;
   bool need_rescale;
+  bool cache_invalidated;
 
   /* traverse sub-directories for more images */
   bool recursive_load;
@@ -1185,7 +1186,7 @@ static void render_window(struct imv *imv)
     double scale;
     imv_viewport_get_offset(imv->view, &x, &y);
     imv_viewport_get_scale(imv->view, &scale);
-    imv_canvas_draw_image(imv->canvas, imv->current_image, x, y, scale, imv->upscaling_method);
+    imv_canvas_draw_image(imv->canvas, imv->current_image, x, y, scale, imv->upscaling_method, imv->cache_invalidated);
   }
 
   imv_canvas_clear(imv->canvas);
@@ -1229,6 +1230,7 @@ static void render_window(struct imv *imv)
 
   /* redraw complete, unset the flag */
   imv->need_redraw = false;
+  imv->cache_invalidated = false;
 }
 
 static char *get_config_path(void)
@@ -1650,6 +1652,7 @@ static void command_set_upscaling_method(struct list *args, const char *argstr,
   }
 
   imv->need_redraw = true;
+  imv->cache_invalidated = true;
 }
 
 static void command_set_slideshow_duration(struct list *args, const char *argstr, void *data)