From: kramm <kramm>
Date: Tue, 17 Aug 2004 16:36:03 +0000 (+0000)
Subject: fixed freetype bounding boxes & ascent/descent/leading.
X-Git-Tag: xpdf-1-01-latest~12
X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=commitdiff_plain;h=46d9941a3140ef287a2cd0d4ed48d6d2c279aa5f

fixed freetype bounding boxes & ascent/descent/leading.
---

diff --git a/lib/modules/swffont.c b/lib/modules/swffont.c
index 95c19c2..4a7596b 100644
--- a/lib/modules/swffont.c
+++ b/lib/modules/swffont.c
@@ -21,7 +21,7 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
-static int loadfont_scale = 64;
+static int loadfont_scale = 4;
 static int skip_unused = 1;
 static int full_unicode = 0;
 
@@ -41,15 +41,15 @@ void swf_SetLoadFontParameters(int _scale, int _skip_unused, int _full_unicode)
 #include <freetype/ttnameid.h>
 #include <freetype/ftoutln.h>
 
-#define FT_SCALE loadfont_scale
+#define FT_SCALE 1
 #define FT_SUBPIXELS 64
 
 static int ft_move_to(FT_Vector* _to, void* user) 
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT to;
-    to.x = _to->x/(float)FT_SUBPIXELS;
-    to.y = -_to->y/(float)FT_SUBPIXELS;
+    to.x = _to->x*FT_SCALE/(float)FT_SUBPIXELS;
+    to.y = -_to->y*FT_SCALE/(float)FT_SUBPIXELS;
     draw->moveTo(draw, &to);
     return 0;
 }
@@ -57,8 +57,8 @@ static int ft_line_to(FT_Vector* _to, void* user)
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT to;
-    to.x = _to->x/(float)FT_SUBPIXELS;
-    to.y = -_to->y/(float)FT_SUBPIXELS;
+    to.x = _to->x*FT_SCALE/(float)FT_SUBPIXELS;
+    to.y = -_to->y*FT_SCALE/(float)FT_SUBPIXELS;
     draw->lineTo(draw, &to);
     return 0;
 }
@@ -66,12 +66,12 @@ static int ft_cubic_to(FT_Vector* _c1, FT_Vector* _c2, FT_Vector* _to, void* use
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT c1,c2,to;
-    to.x = _to->x/(float)FT_SUBPIXELS;
-    to.y = -_to->y/(float)FT_SUBPIXELS;
-    c1.x = _c1->x/(float)FT_SUBPIXELS;
-    c1.y = -_c1->y/(float)FT_SUBPIXELS;
-    c2.x = _c2->x/(float)FT_SUBPIXELS;
-    c2.y = -_c2->y/(float)FT_SUBPIXELS;
+    to.x = _to->x*FT_SCALE/(float)FT_SUBPIXELS;
+    to.y = -_to->y*FT_SCALE/(float)FT_SUBPIXELS;
+    c1.x = _c1->x*FT_SCALE/(float)FT_SUBPIXELS;
+    c1.y = -_c1->y*FT_SCALE/(float)FT_SUBPIXELS;
+    c2.x = _c2->x*FT_SCALE/(float)FT_SUBPIXELS;
+    c2.y = -_c2->y*FT_SCALE/(float)FT_SUBPIXELS;
     draw_cubicTo(draw, &c1, &c2, &to);
     return 0;
 }
@@ -79,10 +79,10 @@ static int ft_conic_to(FT_Vector* _c, FT_Vector* _to, void* user)
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT c,to;
-    to.x = _to->x/(float)FT_SUBPIXELS;
-    to.y = -_to->y/(float)FT_SUBPIXELS;
-    c.x = _c->x/(float)FT_SUBPIXELS;
-    c.y = -_c->y/(float)FT_SUBPIXELS;
+    to.x = _to->x*FT_SCALE/(float)FT_SUBPIXELS;
+    to.y = -_to->y*FT_SCALE/(float)FT_SUBPIXELS;
+    c.x = _c->x*FT_SCALE/(float)FT_SUBPIXELS;
+    c.y = -_c->y*FT_SCALE/(float)FT_SUBPIXELS;
     draw_conicTo(draw, &c, &to);
     return 0;
 }
@@ -117,7 +117,7 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 	}
     }
     error = FT_New_Face(ftlibrary, filename, 0, &face);
-    FT_Set_Pixel_Sizes (face, 16*FT_SCALE, 16*FT_SCALE);
+    FT_Set_Pixel_Sizes (face, 16*loadfont_scale, 16*loadfont_scale);
 
     if(error) {
 	fprintf(stderr, "Couldn't load file %s- not a TTF file?\n", filename);
@@ -148,9 +148,9 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 	memset(font->glyphnames,0,face->num_glyphs*sizeof(char*));
     }
 
-    font->layout->ascent = face->ascender*20/FT_SUBPIXELS; //face->bbox.xMin;
-    font->layout->descent = abs(face->descender)*20/FT_SUBPIXELS; //face->bbox.xMax;
-    font->layout->leading = abs(face->bbox.yMin - face->bbox.yMax); //-face->bbox.xMin*20/FT_SUBPIXELS;
+    font->layout->ascent = abs(face->ascender)*FT_SCALE*loadfont_scale*20/FT_SUBPIXELS/2; //face->bbox.xMin;
+    font->layout->descent = abs(face->descender)*FT_SCALE*loadfont_scale*20/FT_SUBPIXELS/2; //face->bbox.xMax;
+    font->layout->leading = font->layout->ascent + font->layout->descent;
     font->layout->kerningcount = 0;
     
     name = FT_Get_Postscript_Name(face);