fixed freetype bounding boxes & ascent/descent/leading.

[swftools.git] / lib / modules / swffont.c

diff --git a/lib/modules/swffont.c b/lib/modules/swffont.c
index abfc0c1..4a7596b 100644 (file)
--- a/lib/modules/swffont.c
+++ b/lib/modules/swffont.c
@@ -21,25 +21,27 @@
    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 = 1;
+static int loadfont_scale = 4;
 static int skip_unused = 1;
+static int full_unicode = 0;
 
-// TODO: should be named "setLoadFontParameters"
-void swf_SetLoadFontParameters(int _scale, int _skip_unused)
+void swf_SetLoadFontParameters(int _scale, int _skip_unused, int _full_unicode)
 {
-    loadfont_scale = _scale;
+    if(_scale) loadfont_scale = _scale;
     skip_unused = _skip_unused;
+    full_unicode = _full_unicode;
 }
 
 #ifdef HAVE_FREETYPE
 
 #include <freetype/freetype.h>
 #include <freetype/ftglyph.h>
+#include <freetype/ftsizes.h>
 #include <freetype/ftsnames.h>
 #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) 
@@ -105,6 +107,8 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
     SWFFONT* font;
     int t;
     int*glyph2glyph;
+    FT_Size size;
+    int max_unicode = 0;
    
     if(ftlibrary == 0) {
        if(FT_Init_FreeType(&ftlibrary)) {
@@ -113,6 +117,8 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
        }
     }
     error = FT_New_Face(ftlibrary, filename, 0, &face);
+    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);
        return 0;
@@ -142,9 +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);
@@ -178,6 +184,9 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
        }
        charcode = FT_Get_Next_Char(face, charcode, &gindex);
     }
+
+    if(full_unicode)
+       font->maxascii = 65535;
     
     font->ascii2glyph = malloc(font->maxascii*sizeof(int));
     
@@ -187,11 +196,13 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
            g = -1;
        font->ascii2glyph[t] = g;
        if(g>=0) {
+           max_unicode = t+1;
            if(!font->glyph2ascii[g]) {
                font->glyph2ascii[g] = t;
            }
        }
     }
+    font->maxascii = max_unicode;
 
     font->numchars = 0;
 
@@ -216,14 +227,14 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
        if(!font->glyph2ascii[t] && !hasname && skip_unused) {
            continue;
        }
-       error = FT_Load_Glyph(face, t, FT_LOAD_NO_BITMAP|FT_LOAD_NO_SCALE);
+       error = FT_Load_Glyph(face, t, FT_LOAD_NO_BITMAP);
        if(error) {
-           fprintf(stderr, "Couldn't load glyph %d\n", t);
+           fprintf(stderr, "Couldn't load glyph %d, error:%d\n", t, error);
            continue;
        }
        error = FT_Get_Glyph(face->glyph, &glyph);
        if(error) {
-           fprintf(stderr, "Couldn't get glyph %d\n", t);
+           fprintf(stderr, "Couldn't get glyph %d, error:%d\n", t, error);
            continue;
        }
 
@@ -255,8 +266,6 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
            continue;
        }
 
-       draw.finish(&draw);
-
 #if 0
        if(bbox.xMin > 0) {
            font->glyph[font->numchars].advance = (bbox.xMax*FT_SCALE)/FT_SUBPIXELS;
@@ -325,7 +334,9 @@ SWFFONT* swf_LoadT1Font(char*filename)
     int s,num;
     char**charnames;
     char**charname;
+    char*encoding[256];
     int c;
+    int t;
 
     if(!t1lib_initialized) {
        T1_SetBitmapPad(16);
@@ -339,6 +350,10 @@ SWFFONT* swf_LoadT1Font(char*filename)
     T1_LoadFont(nr);
 
     charnames = T1_GetAllCharNames(nr);
+    if(!charnames) {
+       fprintf(stderr, "No Charnames record- not a Type1 Font?\n");
+       return 0;
+    }
 
     angle = T1_GetItalicAngle(nr);
     fontname = T1_GetFontName(nr);
@@ -362,8 +377,16 @@ SWFFONT* swf_LoadT1Font(char*filename)
     charname = charnames;
     while(*charname) {
        charname++;
+       if(num<256) {
+           if(*charname) encoding[num] = strdup(*charname);
+           else          encoding[num] = strdup(".notdef");
+       }
        num++;
     }
+    for(t=num;t<256;t++)
+       encoding[t] = strdup(".notdef");
+    
+    //T1_ReencodeFont(nr, encoding);
 
     font->maxascii = num;
     font->numchars = num;
@@ -434,7 +457,9 @@ SWFFONT* swf_LoadT1Font(char*filename)
            }
            last = pos;
            outline = outline->link;
+           printf("(%f,%f) ", pos.x, pos.y);
        }
+       printf("\n");
        
        draw.finish(&draw);
 
@@ -449,6 +474,10 @@ SWFFONT* swf_LoadT1Font(char*filename)
        }
        charname++;
     }
+    T1_DeleteFont(nr);
+
+    for(t=0;t<256;t++)
+       free(encoding[t]);
     return font;
 }
 
@@ -498,6 +527,7 @@ SWFFONT* swf_LoadFont(char*filename)
     if(is_swf) {
        return swf_ReadFont(filename);
     }
+
 #if defined(HAVE_FREETYPE)
     return swf_LoadTrueTypeFont(filename);
 #elif defined(HAVE_T1LIB)