From: handa <handa>
Date: Thu, 16 Aug 2007 06:00:02 +0000 (+0000)
Subject: (adjust_anchor): Argument changed.  Calculte based on
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=46f852202f81dff6a2b13ddf5608881fc695e85e;p=m17n%2Fm17n-lib.git

(adjust_anchor): Argument changed.  Calculte based on
26.6 fixed point.
(mfont__ft_drive_otf): Don't call OTF_check_features for GPOS.
Adjusted for the argument change of adjust_anchor.  Calculte based
on 26.6 fixed point.
---

diff --git a/src/font-ft.c b/src/font-ft.c
index c68e1a2..95a8a5e 100644
--- a/src/font-ft.c
+++ b/src/font-ft.c
@@ -2350,7 +2350,7 @@ mfont__ft_unparse_name (MFont *font)
 
 void
 adjust_anchor (OTF_Anchor *anchor, FT_Face ft_face,
-	       unsigned code, int size, int *x, int *y)
+	       unsigned code, int x_ppem, int y_ppem, int *x, int *y)
 {
   if (anchor->AnchorFormat == 2)
     {
@@ -2361,16 +2361,16 @@ adjust_anchor (OTF_Anchor *anchor, FT_Face ft_face,
       outline = &ft_face->glyph->outline;
       if (ap < outline->n_points)
 	{
-	  *x = outline->points[ap].x;
-	  *y = outline->points[ap].y;
+	  *x = outline->points[ap].x << 6;
+	  *y = outline->points[ap].y << 6;
 	}
     }
   else if (anchor->AnchorFormat == 3)
     {
       if (anchor->f.f2.XDeviceTable.offset)
-	*x += DEVICE_DELTA (anchor->f.f2.XDeviceTable, size);
+	*x += (DEVICE_DELTA (anchor->f.f2.XDeviceTable, x_ppem)) << 6;
       if (anchor->f.f2.YDeviceTable.offset)
-      *y += DEVICE_DELTA (anchor->f.f2.YDeviceTable, size);
+	*y += (DEVICE_DELTA (anchor->f.f2.YDeviceTable, y_ppem)) << 6;
     }
 }
 
@@ -2508,17 +2508,19 @@ mfont__ft_drive_otf (MGlyphString *gstring, int from, int to,
 
   if (gpos_features)
     {
-      int u;
-      int size10, size;
+      FT_Face face;
       MGlyph *base = NULL, *mark = NULL;
+      int x_ppem, y_ppem, x_scale, y_scale;
 
       if (OTF_drive_gpos (otf, &otf_gstring, script, langsys, gpos_features)
 	  < 0)
 	return to;
 
-      u = otf->head->unitsPerEm;
-      size10 = rfont->spec.size;
-      size = size10 / 10;
+      face = ((MRealizedFontFT *) rfont->info)->ft_face;
+      x_ppem = face->size->metrics.x_ppem;
+      y_ppem = face->size->metrics.y_ppem;
+      x_scale = face->size->metrics.x_scale;
+      y_scale = face->size->metrics.y_scale;
 
       for (i = 0, otfg = otf_gstring.glyphs, g = MGLYPH (gidx);
 	   i < otf_gstring.used; i++, otfg++, g++)
@@ -2536,17 +2538,22 @@ mfont__ft_drive_otf (MGlyphString *gstring, int from, int to,
 		int format = otfg->f.f1.format;
 
 		if (format & OTF_XPlacement)
-		  g->xoff = otfg->f.f1.value->XPlacement * size10 / u / 10;
+		  g->xoff = otfg->f.f1.value->XPlacement * x_scale / 0x400000;
 		if (format & OTF_XPlaDevice)
-		  g->xoff += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, size);
+		  g->xoff
+		    += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem);
 		if (format & OTF_YPlacement)
-		  g->yoff = - (otfg->f.f1.value->YPlacement * size10 / u / 10);
+		  g->yoff
+		    = - (otfg->f.f1.value->YPlacement * y_scale / 0x400000);
 		if (format & OTF_YPlaDevice)
-		  g->yoff -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, size);
+		  g->yoff
+		    -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem);
 		if (format & OTF_XAdvance)
-		  g->width += otfg->f.f1.value->XAdvance * size10 / u / 10;
+		  g->width
+		    += otfg->f.f1.value->XAdvance * x_scale / 0x400000;
 		if (format & OTF_XAdvDevice)
-		  g->width += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, size);
+		  g->width
+		    += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, y_ppem);
 	      }
 	      break;
 	    case 3:
@@ -2566,19 +2573,19 @@ mfont__ft_drive_otf (MGlyphString *gstring, int from, int to,
 	      {
 		int base_x, base_y, mark_x, mark_y;
 
-		base_x = otfg->f.f4.base_anchor->XCoordinate * size10 / u / 10;
-		base_y = otfg->f.f4.base_anchor->YCoordinate * size10 / u / 10;
-		mark_x = otfg->f.f4.mark_anchor->XCoordinate * size10 / u / 10;
-		mark_y = otfg->f.f4.mark_anchor->YCoordinate * size10 / u / 10;
+		base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000;
+		base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000;
+		mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000;
+		mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000;
 
 		if (otfg->f.f4.base_anchor->AnchorFormat != 1)
 		  adjust_anchor (otfg->f.f4.base_anchor, rfont->fontp,
-				 prev->code, size, &base_x, &base_y);
+				 prev->code, x_ppem, y_ppem, &base_x, &base_y);
 		if (otfg->f.f4.mark_anchor->AnchorFormat != 1)
 		  adjust_anchor (otfg->f.f4.mark_anchor, rfont->fontp,
-				 g->code, size, &mark_x, &mark_y);
-		g->xoff = prev->xoff + (base_x - prev->width) - mark_x;
-		g->yoff = prev->yoff + mark_y - base_y;
+				 g->code, x_ppem, y_ppem, &mark_x, &mark_y);
+		g->xoff = prev->xoff - prev->width + ((base_x - mark_x) >> 6);
+		g->yoff = prev->yoff + ((mark_y - base_y) >> 6);
 		g->combining_code = MAKE_PRECOMPUTED_COMBINDING_CODE ();
 	      }
 	    }