fixed format warnings
[swftools.git] / lib / modules / swffont.c
index 6344fd3..986c07d 100644 (file)
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+#include <stdio.h>
+#include <stdlib.h>
+#include "../rfxswf.h"
+
 static int loadfont_scale = 4;
 static int skip_unused = 1;
 static int full_unicode = 0;
@@ -51,10 +55,15 @@ void swf_SetLoadFontParameters(int _scale, int _skip_unused, int _full_unicode)
 #include <freetype/ftoutln.h>
 #endif
 
+/* Setting subpixels to 64 also means that the "point size" of the
+   font outlines will be 64. So the font, when rendered at original
+   size (i.e., the swf fontsize is 1024) will have the same size as
+   if it was rendered at 64pt */
+
 #define FT_SCALE 1
 #define FT_SUBPIXELS 64
 
-static int ft_move_to(FT_Vector* _to, void* user) 
+static int ft_move_to(const FT_Vector* _to, void* user) 
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT to;
@@ -63,7 +72,7 @@ static int ft_move_to(FT_Vector* _to, void* user)
     draw->moveTo(draw, &to);
     return 0;
 }
-static int ft_line_to(FT_Vector* _to, void* user) 
+static int ft_line_to(const FT_Vector* _to, void* user) 
 {
     drawer_t* draw = (drawer_t*)user;
     FPOINT to;
@@ -72,28 +81,28 @@ static int ft_line_to(FT_Vector* _to, void* user)
     draw->lineTo(draw, &to);
     return 0;
 }
-static int ft_cubic_to(FT_Vector* _c1, FT_Vector* _c2, FT_Vector* _to, void* user)
+static int ft_conic_to(const FT_Vector* _c, const FT_Vector* _to, void* user) 
 {
     drawer_t* draw = (drawer_t*)user;
-    FPOINT c1,c2,to;
+    FPOINT c,to;
     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);
+    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;
 }
-static int ft_conic_to(FT_Vector* _c, FT_Vector* _to, void* user) 
+static int ft_cubic_to(const FT_Vector* _c1, const FT_Vector* _c2, const FT_Vector* _to, void* user)
 {
     drawer_t* draw = (drawer_t*)user;
-    FPOINT c,to;
+    FPOINT c1,c2,to;
     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);
+    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;
 }
 static FT_Outline_Funcs outline_functions =
@@ -107,7 +116,7 @@ static FT_Outline_Funcs outline_functions =
 
 static FT_Library ftlibrary = 0;
 
-SWFFONT* swf_LoadTrueTypeFont(char*filename)
+SWFFONT* swf_LoadTrueTypeFont(const char*filename, char flashtype)
 {
     FT_Face face;
     FT_Error error;
@@ -117,10 +126,9 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
     SWFFONT* font;
     int t;
     int*glyph2glyph;
-    FT_Size size;
     int max_unicode = 0;
     int charmap = -1;
-   
+
     if(ftlibrary == 0) {
        if(FT_Init_FreeType(&ftlibrary)) {
            fprintf(stderr, "Couldn't init freetype library!\n");
@@ -128,38 +136,41 @@ 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) {
+    if(error || !face) {
        fprintf(stderr, "Couldn't load file %s- not a TTF file?\n", filename);
        return 0;
     }
+   
+    int scale = flashtype?20:1;
+    FT_Set_Pixel_Sizes (face, 16*loadfont_scale*scale, 16*loadfont_scale*scale);
+
     if(face->num_glyphs <= 0) {
-       fprintf(stderr, "File %s contains %d glyphs\n", face->num_glyphs);
+       fprintf(stderr, "File %s contains %d glyphs\n", filename, (int)face->num_glyphs);
        return 0;
     }
 
-    font = rfx_calloc(sizeof(SWFFONT));
+    font = (SWFFONT*)rfx_calloc(sizeof(SWFFONT));
     font->id = -1;
-    font->version = 2;
-    font->layout = rfx_calloc(sizeof(SWFLAYOUT));
-    font->layout->bounds = rfx_calloc(face->num_glyphs*sizeof(SRECT));
+    font->version = flashtype?3:2;
+
+    font->layout = (SWFLAYOUT*)rfx_calloc(sizeof(SWFLAYOUT));
+    font->layout->bounds = (SRECT*)rfx_calloc(face->num_glyphs*sizeof(SRECT));
     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 = rfx_calloc(face->num_glyphs*sizeof(U16));
+    font->glyph2ascii = (U16*)rfx_calloc(face->num_glyphs*sizeof(U16));
     font->maxascii = 0;
-    font->glyph = rfx_calloc(face->num_glyphs*sizeof(SWFGLYPH));
+    font->glyph = (SWFGLYPH*)rfx_calloc(face->num_glyphs*sizeof(SWFGLYPH));
     if(FT_HAS_GLYPH_NAMES(face)) {
-       font->glyphnames = rfx_calloc(face->num_glyphs*sizeof(char*));
+       font->glyphnames = (char**)rfx_calloc(face->num_glyphs*sizeof(char*));
     }
-
-    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);
+    name = face->family_name;
+    if(!(name && *name))
+        name = FT_Get_Postscript_Name(face);
     if(name && *name)
        font->name = (U8*)strdup(name);
 
@@ -209,7 +220,7 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
     if(full_unicode)
        font->maxascii = 65535;
     
-    font->ascii2glyph = rfx_calloc(font->maxascii*sizeof(int));
+    font->ascii2glyph = (int*)rfx_calloc(font->maxascii*sizeof(int));
     
     for(t=0;t<font->maxascii;t++) {
        int g = FT_Get_Char_Index(face, t);
@@ -229,13 +240,13 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 
     glyph2glyph = (int*)rfx_calloc(face->num_glyphs*sizeof(int));
 
+    SRECT fontbbox = {0,0,0,0};
+
     for(t=0; t < face->num_glyphs; t++) {
        FT_Glyph glyph;
        FT_BBox bbox;
-       FT_Matrix matrix;
        char name[128];
        drawer_t draw;
-       int ret;
        char hasname = 0;
        name[0]=0;
        if(FT_HAS_GLYPH_NAMES(face)) {
@@ -250,16 +261,26 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
        }
        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_Get_Glyph(face->glyph, &glyph);
-       if(error) {
-           fprintf(stderr, "Couldn't get glyph %d, error:%d\n", t, error);
-           continue;
+           //tends to happen with some pdfs
+           fprintf(stderr, "Warning: Glyph %d has return code %d\n", t, error);
+           glyph=0;
+           if(skip_unused) 
+               continue;
+       } else {
+           error = FT_Get_Glyph(face->glyph, &glyph);
+           if(error) {
+               fprintf(stderr, "Couldn't get glyph %d, error:%d\n", t, error);
+               glyph=0;
+               if(skip_unused) 
+                   continue;
+           }
        }
 
-       FT_Glyph_Get_CBox(glyph, ft_glyph_bbox_unscaled, &bbox);
+       if(glyph)
+           FT_Glyph_Get_CBox(glyph, ft_glyph_bbox_unscaled, &bbox);
+       else
+           memset(&bbox, 0, sizeof(bbox));
+
        bbox.yMin = -bbox.yMin;
        bbox.yMax = -bbox.yMax;
        if(bbox.xMax < bbox.xMin) {
@@ -278,7 +299,10 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
        swf_Shape01DrawerInit(&draw, 0);
 
        //error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
-       error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
+       if(glyph)
+           error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
+       else
+           error = 0;
        draw.finish(&draw);
        
        if(error) {
@@ -289,28 +313,55 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 
 #if 0
        if(bbox.xMin > 0) {
-           font->glyph[font->numchars].advance = (bbox.xMax*FT_SCALE)/FT_SUBPIXELS;
+           font->glyph[font->numchars].advance = (bbox.xMax*20*FT_SCALE)/FT_SUBPIXELS;
        } else {
-           font->glyph[font->numchars].advance = ((bbox.xMax - bbox.xMin)*FT_SCALE)/FT_SUBPIXELS;
+           font->glyph[font->numchars].advance = ((bbox.xMax - bbox.xMin)*20*FT_SCALE)/FT_SUBPIXELS;
        }
 #else
-       font->glyph[font->numchars].advance = glyph->advance.x*20/65536;
+       if(glyph)
+           font->glyph[font->numchars].advance = glyph->advance.x*20/65536;
+       else
+           font->glyph[font->numchars].advance = 0;
 #endif
        
+       SRECT b = swf_ShapeDrawerGetBBox(&draw);
+
+       //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;
+
+       font->layout->bounds[font->numchars] = b;
        font->glyph[font->numchars].shape = swf_ShapeDrawerToShape(&draw);
-       
-       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;
+
+       swf_ExpandRect2(&fontbbox, &font->layout->bounds[font->numchars]);
 
        draw.dealloc(&draw);
 
-       FT_Done_Glyph(glyph);
+       if(glyph)
+           FT_Done_Glyph(glyph);
        font->glyph2ascii[font->numchars] = font->glyph2ascii[t];
        glyph2glyph[t] = font->numchars;
        font->numchars++;
     }
+    
+    //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;
+
+    if(-fontbbox.ymin < 0)
+        font->layout->ascent = 0;
+    else
+       font->layout->ascent = -fontbbox.ymin;
+
+    if(fontbbox.ymax < 0)
+        font->layout->descent = 0;
+    else
+       font->layout->descent = fontbbox.ymax;
+
+    int leading = fontbbox.ymax - fontbbox.ymin;
+    font->layout->leading = leading>0x7fff?0x7fff:leading;
+
     /* 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 */
@@ -329,7 +380,7 @@ SWFFONT* swf_LoadTrueTypeFont(char*filename)
 }
 #else  //HAVE_FREETYPE
 
-SWFFONT* swf_LoadTrueTypeFont(char*filename)
+SWFFONT* swf_LoadTrueTypeFont(const char*filename, char flashtype)
 {
     fprintf(stderr, "Warning: no freetype library- not able to load %s\n", filename);
     return 0;
@@ -345,7 +396,7 @@ static int t1lib_initialized = 0;
 
 static int counter = 0;
 
-SWFFONT* swf_LoadT1Font(char*filename)
+SWFFONT* swf_LoadT1Font(const char*filename)
 {
     SWFFONT * font;
     int nr;
@@ -471,9 +522,7 @@ SWFFONT* swf_LoadT1Font(char*filename)
            }
            last = pos;
            outline = outline->link;
-           printf("(%f,%f) ", pos.x, pos.y);
        }
-       printf("\n");
        
        draw.finish(&draw);
 
@@ -497,7 +546,7 @@ SWFFONT* swf_LoadT1Font(char*filename)
 
 #else
 
-SWFFONT* swf_LoadT1Font(char*filename)
+SWFFONT* swf_LoadT1Font(const char*filename)
 {
     fprintf(stderr, "Warning: no t1lib- not able to load %s\n", filename);
     return 0;
@@ -529,7 +578,7 @@ static int isSWF(const char*filename)
     return 0;
 }
 
-SWFFONT* swf_LoadFont(char*filename)
+SWFFONT* swf_LoadFont(const char*filename, char flashtype)
 {
     int is_swf;
     if(filename == 0)
@@ -538,11 +587,14 @@ SWFFONT* swf_LoadFont(char*filename)
     if(is_swf<0)
        return 0;
     if(is_swf) {
-       return swf_ReadFont(filename);
+       SWFFONT*font = swf_ReadFont(filename);
+       if(flashtype && font->version==2)
+           fprintf(stderr, "Warning: Can't load font v2 file as flashtype (%s)\n", filename);
+       return font;
     }
 
 #if defined(HAVE_FREETYPE)
-    return swf_LoadTrueTypeFont(filename);
+    return swf_LoadTrueTypeFont(filename, flashtype);
 #elif defined(HAVE_T1LIB)
     return swf_LoadT1Font(filename);
 #else