[SF#1058] Change size of large thumbnails to 512.

256*256 appears to be small on hi-res displays.

NEWS

@@ -2,6 +2,9 @@ Changes on 1.3.1 since 1.3.0.2:
 
 * Fixed crash on reload while directory changes (folder might be not ready yet).
 
+* Changed size of large thumbnails to 512 since 256*256 appears to be small on
+    hi-res displays.
+
 
 Changes on 1.3.0.2 since 1.3.0:
 

src/base/fm-thumbnail-loader.c

@@ -2,7 +2,7 @@
  * fm-thumbnail-loader.c
  *
  * Copyright 2010 - 2013 Hong Jen Yee (PCMan) <[email protected]>
- * Copyright 2012-2015 Andriy Grytsenko (LStranger) <[email protected]>
+ * Copyright 2012-2018 Andriy Grytsenko (LStranger) <[email protected]>
  *
  * This file is a part of the Libfm library.
  *
@@ -822,7 +822,7 @@ static void generate_thumbnails(ThumbnailTask* task)
 static GObject* scale_pix(GObject* ori_pix, int size)
 {
     GObject* scaled_pix;
-    /* keep aspect ratio and scale to thumbnail size: 128 or 256 */
+    /* keep aspect ratio and scale to thumbnail size: 128 or 512 */
     int width = backend.get_image_width(ori_pix);
     int height = backend.get_image_height(ori_pix);
     int new_width;
@@ -1015,14 +1015,14 @@ static gboolean generate_thumbnails_with_builtin(ThumbnailTask* task)
         if(task->flags & GENERATE_LARGE)
         {
             /* don't create thumbnails for images which are too small */
-            if(width <=256 && height <= 256)
+            if (width <= 512 && height <= 512)
             {
                 large_pix = (GObject*)g_object_ref(ori_pix);
                 need_save = FALSE;
             }
             else
             {
-                large_pix = scale_pix(ori_pix, 256);
+                large_pix = scale_pix(ori_pix, 512);
                 need_save = TRUE;
             }
             if(rotate_degrees != 0)
@@ -1172,7 +1172,7 @@ static void generate_thumbnails_with_thumbnailers(ThumbnailTask* task)
             }
             if((task->flags & GENERATE_LARGE) && !(generated & GENERATE_LARGE))
             {
-                if(run_thumbnailer(thumbnailer, task, task->large_path, 256))
+                if (run_thumbnailer(thumbnailer, task, task->large_path, 512))
                 {
                     generated |= GENERATE_LARGE;
                     large_pix = backend.read_image_from_file(task->large_path);