From 6b138cd1062709392384c286dba3d2d9371e3c16 Mon Sep 17 00:00:00 2001
From: handa <handa>
Date: Mon, 10 Sep 2007 04:50:49 +0000
Subject: [PATCH] *** empty log message ***

---
 flt.c |   81 ++++++++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 52 insertions(+), 29 deletions(-)

diff --git a/flt.c b/flt.c
index 5b5c9c4..70e6abe 100644
--- a/flt.c
+++ b/flt.c
@@ -177,13 +177,20 @@ typedef struct {
 } FontInfo;
 
 int
-get_glyph_id (MFLTFont *font, MFLTGlyph *g)
+get_glyph_id (MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
 {
   FT_Face face = ((FontInfo *) font)->face;
 
-  g->code = FT_Get_Char_Index (face, g->code);
+  for (; from < to; from++)
+    {
+      MFLTGlyph *g = gstring->glyphs + from;
 
-  return (g->code ? 0 : -1);
+      if (! g->encoded
+	  && ! (g->code = FT_Get_Char_Index (face, g->code)))
+	return -1;
+      g->encoded = 1;
+    }
+  return 0;
 }
 
 int 
@@ -194,17 +201,22 @@ get_metric (MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
   for (; from < to; from++)
     {
       MFLTGlyph *g = gstring->glyphs + from;
-      FT_Glyph_Metrics *metrics;
 
-      if (FT_Load_Glyph (face, g->code, FT_LOAD_DEFAULT))
-	return -1;
-      metrics = &face->glyph->metrics;
-      g->lbearing = metrics->horiBearingX;
-      g->rbearing = metrics->horiBearingX + metrics->width;
-      g->xadv = metrics->horiAdvance;
-      g->yadv = metrics->vertAdvance;
-      g->ascent = metrics->horiBearingY;
-      g->descent = metrics->height - metrics->horiBearingY;
+      if (! g->measured)
+	{
+	  FT_Glyph_Metrics *metrics;
+
+	  if (FT_Load_Glyph (face, g->code, FT_LOAD_DEFAULT))
+	    return -1;
+	  metrics = &face->glyph->metrics;
+	  g->lbearing = metrics->horiBearingX;
+	  g->rbearing = metrics->horiBearingX + metrics->width;
+	  g->xadv = metrics->horiAdvance;
+	  g->yadv = metrics->vertAdvance;
+	  g->ascent = metrics->horiBearingY;
+	  g->descent = metrics->height - metrics->horiBearingY;
+	  g->measured = 1;
+	}
     }
   return 0;
 }
@@ -997,17 +1009,25 @@ typedef struct {
 } FontInfoPango;
 
 int
-get_glyph_id (MFLTFont *font, MFLTGlyph *g)
+get_glyph_id (MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
 {
   FontInfoPango *font_info = (FontInfoPango *) font;
 
-  g->code = pango_fc_font_get_glyph (font_info->pango_font, g->code);
-  return (g->code ? 0 : -1);
+  for (; from < to; from++)
+    {
+      MFLTGlyph *g = gstring->glyphs + from;
+
+      if (! g->encoded
+	  && ! (g->code = pango_fc_font_get_glyph (font_info->pango_font,
+						   g->code)))
+	return -1;
+      g->encoded = 1;
+    }
+  return 0;
 }
 
 #define PANGO_SCALE_TO_26_6 (PANGO_SCALE / (1<<6))
 
-#if 0
 int
 get_metric (MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
 {
@@ -1017,22 +1037,25 @@ get_metric (MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
   for (i = from; i < to; i++)
     {
       MFLTGlyph *g = gstring->glyphs + from;
-      PangoRectangle inc, logical;
 
-      pango_font_get_glyph_extents (PANGO_FONT (font_info->pango_font),
-				    gstring->glyphs[i].code, &inc, &logical);
-      g->lbearing = inc.x / PANGO_SCALE_TO_26_6;
-      g->rbearing = (inc.x + inc.width) / PANGO_SCALE_TO_26_6;
-      g->xadv = logical.width / PANGO_SCALE_TO_26_6;
-      g->yadv = 0;
-      g->ascent = - inc.y / PANGO_SCALE_TO_26_6;
-      g->descent = (inc.height + inc.y) / PANGO_SCALE_TO_26_6;
+      if (! g->measured)
+	{
+	  PangoRectangle inc, logical;
+
+	  pango_font_get_glyph_extents (PANGO_FONT (font_info->pango_font),
+					gstring->glyphs[i].code, &inc, &logical);
+	  g->lbearing = inc.x / PANGO_SCALE_TO_26_6;
+	  g->rbearing = (inc.x + inc.width) / PANGO_SCALE_TO_26_6;
+	  g->xadv = logical.width / PANGO_SCALE_TO_26_6;
+	  g->yadv = 0;
+	  g->ascent = - inc.y / PANGO_SCALE_TO_26_6;
+	  g->descent = (inc.height + inc.y) / PANGO_SCALE_TO_26_6;
+	  g->measured = 1;
+	}
     }
   return 0;
 }
-#else
-int (*get_metric) (MFLTFont *font, MFLTGlyphString *gstring, int from, int to) = NULL;
-#endif
+
 
 #ifndef PANGO_OT_DEFAULT_LANGUAGE
 #define PANGO_OT_DEFAULT_LANGUAGE ((guint) 0xFFFF)
-- 
1.7.10.4