[gtk/big-glyphs] gl: Fix glyph cache aging



commit 840581e4b0179849fc39e60ea00de444e13f199d
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jun 2 20:55:34 2019 +0000

    gl: Fix glyph cache aging
    
    The logic here seems faulty. We want to keep
    a timestamp that tells us when the glyph was
    last used, so always update the timestamp.
    And whenever we use a glyph, it turns 'young'
    again, so remove it from the old pixels
    accounting.

 gsk/gl/gskglglyphcache.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gsk/gl/gskglglyphcache.c b/gsk/gl/gskglglyphcache.c
index 40a94a9bea..b8e45cbd0b 100644
--- a/gsk/gl/gskglglyphcache.c
+++ b/gsk/gl/gskglglyphcache.c
@@ -308,15 +308,15 @@ gsk_gl_glyph_cache_lookup (GskGLGlyphCache *cache,
     {
       const guint age = cache->timestamp - value->timestamp;
 
-      if (MAX_AGE <= age && age < MAX_AGE + CHECK_INTERVAL)
+      if (MAX_AGE <= age)
         {
           GskGLGlyphAtlas *atlas = value->atlas;
 
           if (atlas)
             atlas->old_pixels -= value->draw_width * value->draw_height;
-
-          value->timestamp = cache->timestamp;
         }
+
+      value->timestamp = cache->timestamp;
     }
 
   if (create && value == NULL)


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