evas gl - fix leak with font glyph textures

some font glyphs are still allocated after tyhe last gl window is
freed which means we can't make current anymore to free textures after
that. this fixes that by flushing gl texture info from the font cache
when the last gl windows are gone.

@fix

2 files changed, 58 insertions, 0 deletions

diff --git a/src/lib/evas/common/evas_font.h b/src/lib/evas/common/evas_font.h
index 5017262078..3d59201776 100644
--- a/src/lib/evas/common/evas_font.h
+++ b/src/lib/evas/common/evas_font.h
@@ -68,6 +68,7 @@ EAPI void              evas_common_font_flush                (void);
 EAPI void              evas_common_font_flush_last           (void);
 EAPI RGBA_Font_Int    *evas_common_font_int_find             (const char *name, int size, Font_Rend_Flags wanted_rend);
 EAPI void              evas_common_font_all_clear            (void);
+EAPI void              evas_common_font_ext_clear            (void);
 
 /* query */
 
diff --git a/src/lib/evas/common/evas_font_load.c b/src/lib/evas/common/evas_font_load.c
index 041fe00029..2afd124941 100644
--- a/src/lib/evas/common/evas_font_load.c
+++ b/src/lib/evas/common/evas_font_load.c
@@ -962,3 +962,60 @@ evas_common_font_int_find(const char *name, int size,
    eina_stringshare_del(tmp_fn.name);
    return fi;
 }
+
+static void
+_font_int_ext_clear(RGBA_Font_Int *fi)
+{
+   RGBA_Font_Glyph *fg;
+   Fash_Glyph_Map *fmap;
+   Fash_Glyph_Map2 *fash2;
+   Fash_Glyph *fash;
+   int i, j, k;
+
+   fash = fi->fash;
+   if (!fash) return;
+   for (k = 0; k <= 0xff; k++)
+     {
+        fash2 = fash->bucket[k];
+        if (fash2)
+          {
+             for (j = 0; j <= 0xff; j++)
+               {
+                  fmap = fash2->bucket[j];
+                  if (fmap)
+                    {
+                       for (i = 0; i <= 0xff; i++)
+                         {
+                            fg = fmap->item[i];
+                            if ((fg) && (fg != (void *)(-1)))
+                              {
+                                 if (fg->ext_dat)
+                                   {
+                                      if (fg->ext_dat_free)
+                                        fg->ext_dat_free(fg->ext_dat);
+                                      fg->ext_dat = NULL;
+                                      fg->ext_dat_free = NULL;
+                                   }
+                              }
+                         }
+                    }
+               }
+          }
+     }
+}
+
+static Eina_Bool
+_cb_hash_font_ext(const Eina_Hash *hash EINA_UNUSED,
+                  const void *key EINA_UNUSED,
+                  void *data EINA_UNUSED,
+                  void *fdata EINA_UNUSED)
+{
+   _font_int_ext_clear(data);
+   return EINA_TRUE;
+}
+
+EAPI void
+evas_common_font_ext_clear(void)
+{
+   eina_hash_foreach(fonts, _cb_hash_font_ext, NULL);
+}