X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fmodules%2Fswffont.c;h=a812275611f396eb48af1994aba73fc0ba48281a;hb=cabd1ffdcf5cffd42fba19c15bdbd93adb55a0c7;hp=f2727a462571a9653efcb8aaba2ab59014ba4537;hpb=e38d3a125e8bb4459e26cc4b42ee63f010c56ffb;p=swftools.git

diff --git a/lib/modules/swffont.c b/lib/modules/swffont.c
index f2727a4..a812275 100644
--- a/lib/modules/swffont.c
+++ b/lib/modules/swffont.c
@@ -21,13 +21,30 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
-#ifdef USE_FREETYPE
+static int loadfont_scale = 4;
+static int skip_unused = 1;
+static int full_unicode = 0;
 
+void swf_SetLoadFontParameters(int _scale, int _skip_unused, int _full_unicode)
+{
+    if(_scale) loadfont_scale = _scale;
+    skip_unused = _skip_unused;
+    full_unicode = _full_unicode;
+}
+
+#ifdef HAVE_FREETYPE
+
+#ifdef HAVE_FREETYPE_FT2BUILD_H
+#include <freetype/ft2build.h>
+#include FT_FREETYPE_H
+#else
 #include <freetype/freetype.h>
 #include <freetype/ftglyph.h>
+#include <freetype/ftsizes.h>
 #include <freetype/ftsnames.h>
 #include <freetype/ttnameid.h>
 #include <freetype/ftoutln.h>
+#endif
 
 #define FT_SCALE 1
 #define FT_SUBPIXELS 64
@@ -94,6 +111,10 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
     FT_UInt gindex;
     SWFFONT* font;
     int t;
+    int*glyph2glyph;
+    FT_Size size;
+    int max_unicode = 0;
+    int charmap = -1;
    
     if(ftlibrary == 0) {
 	if(FT_Init_FreeType(&ftlibrary)) {
@@ -102,12 +123,16 @@ 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;
     }
-    if(face->num_glyphs <= 0)
+    if(face->num_glyphs <= 0) {
+	fprintf(stderr, "File %s contains %d glyphs\n", face->num_glyphs);
 	return 0;
+    }
 
     font = malloc(sizeof(SWFFONT));
     memset(font, 0, sizeof(SWFFONT));
@@ -116,64 +141,93 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
     font->layout = malloc(sizeof(SWFLAYOUT));
     memset(font->layout, 0, sizeof(SWFLAYOUT));
     font->layout->bounds = malloc(face->num_glyphs*sizeof(SRECT));
-    font->numchars = face->num_glyphs;
     font->style =  ((face->style_flags&FT_STYLE_FLAG_ITALIC)?FONT_STYLE_ITALIC:0)
 	          |((face->style_flags&FT_STYLE_FLAG_BOLD)?FONT_STYLE_BOLD:0);
     font->encoding = FONT_ENCODING_UNICODE;
     font->glyph2ascii = malloc(face->num_glyphs*sizeof(U16));
     memset(font->glyph2ascii, 0, face->num_glyphs*sizeof(U16));
     font->maxascii = 0;
-    memset(font->ascii2glyph, -1, font->maxascii*sizeof(int));
     font->glyph = malloc(face->num_glyphs*sizeof(SWFGLYPH));
-    memset(font->glyph, 0, face->num_glyphs*sizeof(U16));
+    memset(font->glyph, 0, face->num_glyphs*sizeof(SWFGLYPH));
     if(FT_HAS_GLYPH_NAMES(face)) {
 	font->glyphnames = malloc(face->num_glyphs*sizeof(char*));
+	memset(font->glyphnames,0,face->num_glyphs*sizeof(char*));
     }
 
-    font->layout->ascent = face->ascender; //face->bbox.xMin;
-    font->layout->descent = face->descender; //face->bbox.xMax;
-    font->layout->leading = -face->bbox.xMin;
+    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);
     if(name && *name)
 	font->name = (U8*)strdup(name);
 
-/*    // Map Glyphs to Unicode, version 1 (quick and dirty):
-    int t;
-    for(t=0;t<65536;t++) {
-	int index = FT_Get_Char_Index(face, t);
-	if(index>=0 && index<face->num_glyphs) {
-	    if(font->glyph2ascii[index]<0)
-		font->glyph2ascii[index] = t;
-	}
-    }*/
-    
-    // Map Glyphs to Unicode, version 2 (much nicer):
-    // (The third way would be the AGL algorithm, as proposed
-    //  by Werner Lemberg on freetype@freetype.org)
-
-    charcode = FT_Get_First_Char(face, &gindex);
-    while(gindex != 0)
+    while(1) 
     {
-	if(gindex >= 0 && gindex<face->num_glyphs) {
-	    if(!font->glyph2ascii[gindex]) {
-		font->glyph2ascii[gindex] = charcode;
-		if(charcode + 1 > font->maxascii) {
-		    font->maxascii = charcode + 1;
+    /*    // Map Glyphs to Unicode, version 1 (quick and dirty):
+	int t;
+	for(t=0;t<65536;t++) {
+	    int index = FT_Get_Char_Index(face, t);
+	    if(index>=0 && index<face->num_glyphs) {
+		if(font->glyph2ascii[index]<0)
+		    font->glyph2ascii[index] = t;
+	    }
+	}*/
+	
+	// Map Glyphs to Unicode, version 2 (much nicer):
+	// (The third way would be the AGL algorithm, as proposed
+	//  by Werner Lemberg on freetype@freetype.org)
+
+	charcode = FT_Get_First_Char(face, &gindex);
+	while(gindex != 0)
+	{
+	    if(gindex >= 0 && gindex<face->num_glyphs) {
+		if(!font->glyph2ascii[gindex]) {
+		    font->glyph2ascii[gindex] = charcode;
+		    if(charcode + 1 > font->maxascii) {
+			font->maxascii = charcode + 1;
+		    }
 		}
 	    }
+	    charcode = FT_Get_Next_Char(face, charcode, &gindex);
 	}
-	charcode = FT_Get_Next_Char(face, charcode, &gindex);
+
+	/* if we didn't find a single encoding character, try
+	   the font's charmaps instead. That usually means that
+	   the encoding is no longer unicode. 
+	   TODO: find a way to convert the encoding to unicode
+	 */
+	if(font->maxascii == 0 && charmap < face->num_charmaps - 1) {
+	    charmap++;
+	    FT_Set_Charmap(face, face->charmaps[charmap]);
+	    font->encoding = 0;//anything but unicode FIXME
+	} else 
+	    break;
     }
+
+    if(full_unicode)
+	font->maxascii = 65535;
     
     font->ascii2glyph = malloc(font->maxascii*sizeof(int));
     
     for(t=0;t<font->maxascii;t++) {
-	font->ascii2glyph[t] = FT_Get_Char_Index(face, t);
-	if(!font->ascii2glyph[t])
-	    font->ascii2glyph[t] = -1;
+	int g = FT_Get_Char_Index(face, t);
+	if(!g || g>=face->num_glyphs)
+	    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;
+
+    glyph2glyph = (int*)malloc(face->num_glyphs*sizeof(int));
 
     for(t=0; t < face->num_glyphs; t++) {
 	FT_Glyph glyph;
@@ -182,16 +236,28 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 	char name[128];
 	drawer_t draw;
 	int ret;
+	char hasname = 0;
 	name[0]=0;
 	if(FT_HAS_GLYPH_NAMES(face)) {
 	    error = FT_Get_Glyph_Name(face, t, name, 127);
-	    if(!error) 
-		font->glyphnames[t] = strdup(name);
+	    if(!error && name[0] && !strstr(name, "notdef")) {
+		font->glyphnames[font->numchars] = strdup(name);
+		hasname = 1;
+	    }
+	}
+	if(!font->glyph2ascii[t] && !hasname && skip_unused) {
+	    continue;
+	}
+	error = FT_Load_Glyph(face, t, FT_LOAD_NO_BITMAP);
+	if(error) {
+	    fprintf(stderr, "Couldn't load glyph %d, error:%d\n", t, error);
+	    continue;
 	}
-	error = FT_Load_Glyph(face, t, FT_LOAD_NO_BITMAP|FT_LOAD_NO_SCALE);
-	if(error) return 0;
 	error = FT_Get_Glyph(face->glyph, &glyph);
-	if(error) return 0;
+	if(error) {
+	    fprintf(stderr, "Couldn't get glyph %d, error:%d\n", t, error);
+	    continue;
+	}
 
 	FT_Glyph_Get_CBox(glyph, ft_glyph_bbox_unscaled, &bbox);
 	bbox.yMin = -bbox.yMin;
@@ -213,38 +279,55 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 
 	//error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
 	error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
-	if(error) return 0;
-
 	draw.finish(&draw);
+	
+	if(error) {
+	    fprintf(stderr, "Couldn't decompose glyph %d\n", t);
+	    draw.dealloc(&draw);
+	    continue;
+	}
 
 #if 0
 	if(bbox.xMin > 0) {
-	    font->glyph[t].advance = (bbox.xMax*FT_SCALE)/FT_SUBPIXELS;
+	    font->glyph[font->numchars].advance = (bbox.xMax*FT_SCALE)/FT_SUBPIXELS;
 	} else {
-	    font->glyph[t].advance = ((bbox.xMax - bbox.xMin)*FT_SCALE)/FT_SUBPIXELS;
+	    font->glyph[font->numchars].advance = ((bbox.xMax - bbox.xMin)*FT_SCALE)/FT_SUBPIXELS;
 	}
 #else
-	font->glyph[t].advance = glyph->advance.x/65536;
+	font->glyph[font->numchars].advance = glyph->advance.x*20/65536;
 #endif
 	
-	font->glyph[t].shape = swf_ShapeDrawerToShape(&draw);
+	font->glyph[font->numchars].shape = swf_ShapeDrawerToShape(&draw);
 	
-	font->layout->bounds[t].xmin = (bbox.xMin*FT_SCALE*20)/FT_SUBPIXELS;
-	font->layout->bounds[t].ymin = (bbox.yMin*FT_SCALE*20)/FT_SUBPIXELS;
-	font->layout->bounds[t].xmax = (bbox.xMax*FT_SCALE*20)/FT_SUBPIXELS;
-	font->layout->bounds[t].ymax = (bbox.yMax*FT_SCALE*20)/FT_SUBPIXELS;
+	font->layout->bounds[font->numchars].xmin = (bbox.xMin*FT_SCALE*20)/FT_SUBPIXELS;
+	font->layout->bounds[font->numchars].ymin = (bbox.yMin*FT_SCALE*20)/FT_SUBPIXELS;
+	font->layout->bounds[font->numchars].xmax = (bbox.xMax*FT_SCALE*20)/FT_SUBPIXELS;
+	font->layout->bounds[font->numchars].ymax = (bbox.yMax*FT_SCALE*20)/FT_SUBPIXELS;
 
 	draw.dealloc(&draw);
 
 	FT_Done_Glyph(glyph);
+	font->glyph2ascii[font->numchars] = font->glyph2ascii[t];
+	glyph2glyph[t] = font->numchars;
+	font->numchars++;
+    }
+    /* notice: if skip_unused is true, font->glyph2ascii, font->glyphnames and font->layout->bounds will 
+	       have more memory allocated than just font->numchars, but only the first font->numchars 
+	       are used/valid */
+
+    for(t=0;t<font->maxascii;t++) {
+	if(font->ascii2glyph[t]>=0) {
+	    font->ascii2glyph[t] = glyph2glyph[font->ascii2glyph[t]];
+	}
     }
+    free(glyph2glyph);
 
     FT_Done_Face(face);
     FT_Done_FreeType(ftlibrary);ftlibrary=0;
 
     return font;
 }
-#else  //USE_FREETYPE
+#else  //HAVE_FREETYPE
 
 SWFFONT* swf_LoadTrueTypeFont(char*filename)
 {
@@ -260,6 +343,8 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 
 static int t1lib_initialized = 0;
 
+static int counter = 0;
+
 SWFFONT* swf_LoadT1Font(char*filename)
 {
     SWFFONT * font;
@@ -268,10 +353,11 @@ SWFFONT* swf_LoadT1Font(char*filename)
     char*fontname,*fullname,*familyname;
     BBox bbox;
     int s,num;
-    char*encoding[256];
     char**charnames;
     char**charname;
+    char*encoding[256];
     int c;
+    int t;
 
     if(!t1lib_initialized) {
 	T1_SetBitmapPad(16);
@@ -284,10 +370,11 @@ SWFFONT* swf_LoadT1Font(char*filename)
     nr = T1_AddFont(filename);
     T1_LoadFont(nr);
 
-    num = T1_SetDefaultEncoding(encoding);
-    for(;num<256;num++) encoding[num] = 0;
-
     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);
@@ -300,7 +387,10 @@ SWFFONT* swf_LoadT1Font(char*filename)
     memset(font, 0, sizeof(SWFFONT));
 
     font->version = 2;
-    font->name = (U8*)strdup(fontname);
+    if(fontname) 
+	font->name = (U8*)strdup(fontname);
+    else 
+	font->name = 0;
     font->layout = (SWFLAYOUT*)malloc(sizeof(SWFLAYOUT));
     memset(font->layout, 0, sizeof(SWFLAYOUT));
 
@@ -308,8 +398,16 @@ 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;
@@ -380,7 +478,9 @@ SWFFONT* swf_LoadT1Font(char*filename)
 	    }
 	    last = pos;
 	    outline = outline->link;
+	    printf("(%f,%f) ", pos.x, pos.y);
 	}
+	printf("\n");
 	
 	draw.finish(&draw);
 
@@ -389,12 +489,16 @@ SWFFONT* swf_LoadT1Font(char*filename)
 	draw.dealloc(&draw);
 	    
 	font->layout->bounds[c] = bbox;
-	font->glyph[c].advance = bbox.xmax/20;
+	font->glyph[c].advance = bbox.xmax;
 	if(!font->glyph[c].advance) {
 	    font->glyph[c].advance = firstx;
 	}
 	charname++;
     }
+    T1_DeleteFont(nr);
+
+    for(t=0;t<256;t++)
+	free(encoding[t]);
     return font;
 }
 
@@ -408,13 +512,20 @@ SWFFONT* swf_LoadT1Font(char*filename)
 
 #endif
 
+SWFFONT* swf_DummyFont()
+{
+    SWFFONT*font = (SWFFONT*)malloc(sizeof(SWFFONT));
+    memset(font, 0, sizeof(SWFFONT));
+    return font;
+}
+
 static int isSWF(const char*filename)
 {
     FILE*fi = fopen(filename, "rb");
     char a[8];
     if(!fi) {
 	perror(filename);
-	return 0;
+	return -1;
     }
     memset(a, 0, sizeof(a));
     fread(a, 4, 1, fi);
@@ -428,15 +539,22 @@ static int isSWF(const char*filename)
 
 SWFFONT* swf_LoadFont(char*filename)
 {
-    if(isSWF(filename)) {
+    int is_swf;
+    if(filename == 0)
+	return swf_DummyFont();
+    is_swf = isSWF(filename);
+    if(is_swf<0)
+	return 0;
+    if(is_swf) {
 	return swf_ReadFont(filename);
     }
-#if defined(USE_FREETYPE)
+
+#if defined(HAVE_FREETYPE)
     return swf_LoadTrueTypeFont(filename);
 #elif defined(HAVE_T1LIB)
     return swf_LoadT1Font(filename);
 #else
-    fprintf(stderr, "Error: Neither T1lib nor FreeType support compiled in. Could not load %s\n", infile);
+    fprintf(stderr, "Error: Neither T1lib nor FreeType support compiled in. Could not load %s\n", filename);
     return 0;
 #endif
 }