From 9ecc87713d5cc936c81d10230bd25bb94e42833a Mon Sep 17 00:00:00 2001
From: "Carsten Haitzler (Rasterman)" <raster@rasterman.com>
Date: Fri, 31 May 2013 20:06:21 +0900
Subject: [PATCH] fix slowdown as a result of fixing text ascent/descent for
 fontsets from tom.

---
 src/lib/evas/common/evas_font_main.c | 12 ++++++++++++
 src/lib/evas/include/evas_common.h   |  5 +++++
 2 files changed, 17 insertions(+)

diff --git a/src/lib/evas/common/evas_font_main.c b/src/lib/evas/common/evas_font_main.c
index 1048ad10d1..860574a1c0 100644
--- a/src/lib/evas/common/evas_font_main.c
+++ b/src/lib/evas/common/evas_font_main.c
@@ -185,11 +185,14 @@ evas_common_font_ascent_get(RGBA_Font *fn)
    Eina_List *l;
    RGBA_Font_Int *fi;
    
+   if (fn->have_ascent) return fn->ascent;
    EINA_LIST_FOREACH(fn->fonts, l, fi)
      {
         v = evas_common_font_instance_ascent_get(fi);
         if (v > max) max = v;
      }
+   fn->ascent = max;
+   fn->have_ascent = 1;
    return max;
 }
 
@@ -201,11 +204,14 @@ evas_common_font_descent_get(RGBA_Font *fn)
    Eina_List *l;
    RGBA_Font_Int *fi;
    
+   if (fn->have_descent) return fn->descent;
    EINA_LIST_FOREACH(fn->fonts, l, fi)
      {
         v = evas_common_font_instance_descent_get(fi);
         if (v > max) max = v;
      }
+   fn->descent = max;
+   fn->have_descent = 1;
    return max;
 }
 
@@ -217,11 +223,14 @@ evas_common_font_max_ascent_get(RGBA_Font *fn)
    Eina_List *l;
    RGBA_Font_Int *fi;
    
+   if (fn->have_max_ascent) return fn->max_ascent;
    EINA_LIST_FOREACH(fn->fonts, l, fi)
      {
         v = evas_common_font_instance_max_ascent_get(fi);
         if (v > max) max = v;
      }
+   fn->max_ascent = max;
+   fn->have_max_ascent = 1;
    return max;
 }
 
@@ -233,11 +242,14 @@ evas_common_font_max_descent_get(RGBA_Font *fn)
    Eina_List *l;
    RGBA_Font_Int *fi;
    
+   if (fn->have_max_descent) return fn->max_descent;
    EINA_LIST_FOREACH(fn->fonts, l, fi)
      {
         v = evas_common_font_instance_max_descent_get(fi);
         if (v > max) max = v;
      }
+   fn->max_descent = max;
+   fn->have_max_descent = 1;
    return max;
 }
 
diff --git a/src/lib/evas/include/evas_common.h b/src/lib/evas/include/evas_common.h
index 4d930dddc9..5e7bd34123 100644
--- a/src/lib/evas/include/evas_common.h
+++ b/src/lib/evas/include/evas_common.h
@@ -880,8 +880,13 @@ struct _RGBA_Font
    Fash_Int        *fash;
    Font_Hint_Flags  hinting;
    int              references;
+   short            ascent, descent, max_ascent, max_descent;
    LK(lock);
    unsigned char    sizeok : 1;
+   unsigned char    have_ascent : 1;
+   unsigned char    have_descent : 1;
+   unsigned char    have_max_ascent : 1;
+   unsigned char    have_max_descent : 1;
 };
 
 #include "../common/evas_font_ot.h"