X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fgfxfont.c;h=549e50d58931d3272f6d1c50bfaa9c703a5947a5;hp=5004e18359b02a90f3201107b885a0586fe9ab8e;hb=879d0eec420fe0fd5ddcd56c8fe62b82a6744edd;hpb=b27d77f8a6343e60e2d3ae2c22a8096a6357a927

diff --git a/lib/gfxfont.c b/lib/gfxfont.c
index 5004e18..549e50d 100644
--- a/lib/gfxfont.c
+++ b/lib/gfxfont.c
@@ -21,11 +21,16 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+#include <assert.h>
+#include <stdio.h>
+#include <memory.h>
 #include "../config.h"
 #include "gfxdevice.h"
 #include "gfxtools.h"
 #include "gfxfont.h"
 #include "ttf.h"
+#include "mem.h"
+#include "log.h"
 
 static int loadfont_scale = 64;
 static int full_unicode = 1;
@@ -140,7 +145,7 @@ static int errorno = 0;
 
 //#define DEBUG 1
 
-gfxfont_t* gfxfont_load(char*id, char*filename, unsigned int flags, double quality)
+gfxfont_t* gfxfont_load(const char*id, const char*filename, unsigned int flags, double quality)
 {
     FT_Face face;
     FT_Error error;
@@ -489,7 +494,7 @@ gfxfont_t* gfxfont_load(char*id, char*filename, unsigned int flags, double quali
 }
 #else
 
-gfxfont_t* gfxfont_load(char*id, char*filename, unsigned int flags, double quality)
+gfxfont_t* gfxfont_load(const char*id, const char*filename, unsigned int flags, double quality)
 {
     fprintf(stderr, "No freetype support compiled in! Not able to load %s\n", filename);
     return 0;
@@ -520,7 +525,92 @@ void gfxfont_free(gfxfont_t*font)
     free(font);
 }
 
-ttf_t* gfxfont_to_ttf(gfxfont_t*font)
+static inline int invalid_unicode(int u)
+{
+    return (u<32 || (u>=0xe000 && u<0xf900));
+}
+void gfxfont_fix_unicode(gfxfont_t*font)
+{
+    int t;
+
+    /* find the current maximum unicode2glyph */
+    int max = 0;
+    for(t=0;t<font->num_glyphs;t++) {
+	int u = font->glyphs[t].unicode;
+	if(u > max)
+	    max = u;
+    }
+    char*used = rfx_calloc(max+1);
+
+    /* now, remap all duplicates (and invalid characters) and
+       calculate the new maximum */
+    int remap_pos=0;
+    max = 0;
+    for(t=0;t<font->num_glyphs;t++) {
+	int u = font->glyphs[t].unicode;
+	if(u>=0) {
+	    if(used[u] || invalid_unicode(u)) {
+		u = font->glyphs[t].unicode = 0xe000 + remap_pos++;
+	    } else {
+		used[u] = 1;
+	    }
+	}
+	if(u > max)
+	    max = u;
+    }
+    free(used);
+    if(font->unicode2glyph) {
+	free(font->unicode2glyph);
+    }
+    font->unicode2glyph = 0;
+    font->max_unicode = 0;
+}
+
+void gfxfont_add_unicode2glyph(gfxfont_t*font)
+{ 
+    int t;
+    int max = 0;
+    for(t=0;t<font->num_glyphs;t++) {
+	int u = font->glyphs[t].unicode;
+	if(u > max)
+	    max = u;
+    }
+    if(!font->unicode2glyph) {
+	/* (re)generate unicode2glyph-to-glyph mapping table by reverse mapping
+	   the glyph unicode2glyph's indexes into the mapping table. For collisions,
+   	   we prefer the smaller unicode2glyph value.*/
+	font->max_unicode = max+1;
+	font->unicode2glyph = malloc(sizeof(font->unicode2glyph[0])*(font->max_unicode));
+	memset(font->unicode2glyph, -1, sizeof(font->unicode2glyph[0])*(font->max_unicode));
+	
+	for(t=0;t<font->num_glyphs;t++) {
+	    int u = font->glyphs[t].unicode;
+	    if(u>=0) {
+		assert(font->unicode2glyph[u]<0); // we took care of duplicates, right?
+		assert(u<font->max_unicode);
+		font->unicode2glyph[u] = t;
+	    }
+	}
+    } else {
+	/* add the new glyph indexes (most probably, that's only the remapped values
+	   at 0xe000) to the unicode2glyph table. Notice: Unlike glyph2unicode, we don't
+	   care about collisions in the unicode2glyph table */
+	int new_max_unicode = max+1;
+	if(font->max_unicode < new_max_unicode) {
+	    font->unicode2glyph = rfx_realloc(font->unicode2glyph, sizeof(font->unicode2glyph[0])*(font->max_unicode));
+	    memset(font->unicode2glyph+font->max_unicode, -1, sizeof(font->unicode2glyph[0])*(new_max_unicode - font->max_unicode));
+	}
+	for(t=0;t<font->num_glyphs;t++) {
+	    int u = font->glyphs[t].unicode;
+	    if(u>=0 && font->unicode2glyph[u]<0) {
+		font->unicode2glyph[u] = t;
+	    }
+	}
+	font->max_unicode = new_max_unicode;
+    }
+}
+
+ttf_t* gfxfont_to_ttf(gfxfont_t*font, char eot)
 {
     ttf_t*ttf = ttf_new();
     int num_glyphs = font->num_glyphs;
@@ -539,6 +629,7 @@ ttf_t* gfxfont_to_ttf(gfxfont_t*font)
     ttf->glyphs = rfx_calloc(num_glyphs*sizeof(ttfglyph_t));
     double scale = 1.0;
     int max_unicode = font->max_unicode;
+    int remap_pos=0;
     for(t=0;t<font->num_glyphs;t++) {
 	gfxglyph_t*src = &font->glyphs[t];
 	ttfglyph_t*dest = &ttf->glyphs[t+offset];
@@ -591,36 +682,75 @@ ttf_t* gfxfont_to_ttf(gfxfont_t*font)
 	    }
 	}
 
+	if(eot) {
+	    dest->bearing = dest->xmin;
+	    /* for windows font rendering, make sure coordinates are always 
+	       to the right of the origin (and use bearing to shift them "back".)
+	       Don't do this for non-windows platforms though because e.g. OS X 
+	       ignores bearing. */
+	    int xshift=0;
+	    if(dest->xmin < 0) {
+		xshift = -dest->xmin;
+		for(s=0;s<count;s++) {
+		    dest->points[s].x += xshift;
+		}
+		dest->xmin += xshift;
+		dest->xmax += xshift;
+	    }
+	}
 	dest->advance = src->advance*scale;
-	if(src->unicode > max_unicode)
-	    max_unicode = src->unicode;
+
+	//dest->xmin=0; //TODO: might be necessary for some font engines?
+
+	dest->advance = src->advance*scale;
+
+	int u = font->glyphs[t].unicode;
+	if(u > max_unicode)
+	    max_unicode = u;
     }
     ttf->unicode_size = max_unicode+1;
     ttf->unicode = rfx_calloc(sizeof(unicode_t)*ttf->unicode_size);
-    int remap_pos=0;
-    for(t=0;t<font->num_glyphs;t++) {
-	gfxglyph_t*src = &font->glyphs[t];
-	int u = font->glyphs[t].unicode;
-	if(u<32 || (u>=0xe000 && u<0xf900)) {
-	    u = 0xe000 + remap_pos++;
+    
+    if(!font->unicode2glyph) {
+	for(t=0;t<font->num_glyphs;t++) {
+	    gfxglyph_t*src = &font->glyphs[t];
+	    int u = font->glyphs[t].unicode;
+	    if(u<=0)
+		continue;
+	    if(u<32) {
+		msg("<warning> gfxfont_to_ttf: glyph %d has an invalid unicode (%d)", t, u);
+		continue;
+	    } else if(ttf->unicode[u]) {
+		msg("<warning> gfxfont_to_ttf: glyph %d has a duplicate unicode (%d)", t, u);
+		continue;
+	    }
+	    if(u<ttf->unicode_size)
+		ttf->unicode[u] = t+offset;
 	}
-	if(u>=0)
-	    ttf->unicode[u] = t+offset;
-    }
-    int u;
-    for(u=0;u<font->max_unicode;u++) {
-	int g = font->unicode2glyph[u];
-	if(u<32 || (u>=0xe000 && u<0xf900))
-	    continue;
-	if(g>=0 && !ttf->unicode[u]) {
-	    ttf->unicode[u] = g+offset;
+    } else {
+	int u;
+	for(u=1;u<font->max_unicode;u++) {
+	    int g = font->unicode2glyph[u];
+	    if(g>=0 && u<32) {
+		msg("<warning> gfxfont_to_ttf: Font contains an invalid unicode (%d)", u);
+		continue;
+	    }
+	    if(g>=0 && g<font->num_glyphs && !ttf->unicode[u]) {
+		ttf->unicode[u] = g+offset;
+	    }
 	}
     }
+	
     ttf->ascent = font->ascent;
-    ttf->descent = font->descent;
-    ttf->lineGap = font->ascent + font->descent;
+    ttf->descent = -font->descent;
+    ttf->lineGap = 0;
 
-    ttf->name = strdup(font->id);
+    ttf->full_name = strdup(font->id);
+    ttf->family_name = strdup(font->id);
+    ttf->subfamily_name = strdup(font->id);
+    ttf->postscript_name = strdup(font->id);
+    ttf->version_string = strdup("Version 1.0");
+    ttf->font_uid = strdup(font->id);
 
     ttf_create_truetype_tables(ttf);
     return ttf;
@@ -628,7 +758,15 @@ ttf_t* gfxfont_to_ttf(gfxfont_t*font)
 
 void gfxfont_save(gfxfont_t*font, const char*filename)
 {
-    ttf_t*ttf = gfxfont_to_ttf(font);
+    ttf_t*ttf = gfxfont_to_ttf(font, 0);
     ttf_save(ttf, filename);
+    ttf_destroy(ttf);
+}
+
+void gfxfont_save_eot(gfxfont_t*font, const char*filename)
+{
+    ttf_t*ttf = gfxfont_to_ttf(font, 1);
+    ttf_save_eot(ttf, filename);
+    ttf_destroy(ttf);
 }