int save_defs(const char *, const Font *);
int save_png(const char *, const Image *, char);
-char verbose=0;
+char verbose = 0;
int main(int argc, char **argv)
{
char *fn;
- int begin=0;
- int end=255;
- int size=10;
- int cpl=0;
- int cell=0;
- char autohinter=0;
- char seq=0;
- char alpha=0;
- char pack=0;
+ int begin = 0;
+ int end = 255;
+ int size = 10;
+ int cpl = 0;
+ int cell = 0;
+ char autohinter = 0;
+ char seq = 0;
+ char alpha = 0;
+ char pack = 0;
FT_Library freetype;
FT_Face face;
int err;
int i;
- char *out_fn="font.png";
-
- char *def_fn=NULL;
+ char *out_fn = "font.png";
+ char *def_fn = NULL;
Font font;
return 1;
}
- while((i=getopt(argc, argv, "r:s:l:c:o:atvh?ed:p"))!=-1)
+ while((i = getopt(argc, argv, "r:s:l:c:o:atvh?ed:p")) != -1)
{
char *ptr;
int temp;
case 'r':
if(!strcmp(optarg, "all"))
{
- begin=0;
- end=0x110000;
+ begin = 0;
+ end = 0x110000;
}
else
{
if(!isdigit(optarg[0]))
- temp=-1;
+ temp = -1;
else
{
- temp=strtol(optarg, &ptr, 0);
+ temp = strtol(optarg, &ptr, 0);
if(ptr[0]!=',' || !isdigit(ptr[1]))
- temp=-1;
+ temp = -1;
}
if(temp<0)
{
}
else
{
- begin=temp;
- end=strtol(ptr+1, NULL, 0);
+ begin = temp;
+ end = strtol(ptr+1, NULL, 0);
}
}
break;
case 's':
- size=strtol(optarg, NULL, 0);
+ size = strtol(optarg, NULL, 0);
break;
case 'l':
- cpl=strtol(optarg, NULL, 0);
+ cpl = strtol(optarg, NULL, 0);
break;
case 'c':
- cell=strtol(optarg, NULL, 0);
+ cell = strtol(optarg, NULL, 0);
break;
case 'o':
- out_fn=optarg;
+ out_fn = optarg;
break;
case 'a':
- autohinter=1;
+ autohinter = 1;
break;
case 't':
- alpha=1;
+ alpha = 1;
break;
case 'v':
++verbose;
usage();
return 0;
case 'e':
- seq=1;
+ seq = 1;
break;
case 'd':
- def_fn=optarg;
+ def_fn = optarg;
break;
case 'p':
- pack=1;
+ pack = 1;
break;
}
}
if(!strcmp(out_fn, "-"))
- verbose=0;
+ verbose = 0;
if(optind!=argc-1)
{
usage();
return 1;
}
-
- fn=argv[optind];
- err=FT_Init_FreeType(&freetype);
+ fn = argv[optind];
+
+ err = FT_Init_FreeType(&freetype);
if(err)
{
fprintf(stderr, "Couldn't initialize FreeType library\n");
return 1;
}
- err=FT_New_Face(freetype, fn, 0, &face);
+ err = FT_New_Face(freetype, fn, 0, &face);
if(err)
{
fprintf(stderr, "Couldn't load font file\n");
if(verbose)
{
- const char *name=FT_Get_Postscript_Name(face);
+ const char *name = FT_Get_Postscript_Name(face);
printf("Font name: %s\n", name);
printf("Glyphs: %ld\n", face->num_glyphs);
}
- err=FT_Set_Pixel_Sizes(face, 0, size);
+ err = FT_Set_Pixel_Sizes(face, 0, size);
if(err)
{
fprintf(stderr, "Couldn't set size\n");
return 1;
}
- font.size=size;
+ font.size = size;
init_font(&font, face, begin, end, autohinter);
if(pack)
render_packed(&font);
unsigned round_to_pot(unsigned n)
{
- n-=1;
- n|=n>>1;
- n|=n>>2;
- n|=n>>4;
- n|=n>>8;
- n|=n>>16;
+ n -= 1;
+ n |= n>>1;
+ n |= n>>2;
+ n |= n>>4;
+ n |= n>>8;
+ n |= n>>16;
return n+1;
}
-
+
void usage()
{
printf("ttf2png - True Type Font to PNG converter\n"
void init_font(Font *font, FT_Face face, unsigned first, unsigned last, int autohinter)
{
unsigned i;
- unsigned size=0;
+ unsigned size = 0;
+
+ font->ascent = (face->size->metrics.ascender+63)>>6;
+ font->descent = (face->size->metrics.descender+63)>>6;
- font->ascent=(face->size->metrics.ascender+63)>>6;
- font->descent=(face->size->metrics.descender+63)>>6;
-
if(verbose>=1)
{
printf("Ascent: %d\n", font->ascent);
printf("Descent: %d\n", font->descent);
}
- font->n_glyphs=0;
- font->glyphs=NULL;
+ font->n_glyphs = 0;
+ font->glyphs = NULL;
for(i=first; i<=last; ++i)
{
unsigned n;
- FT_Bitmap *bmp=&face->glyph->bitmap;
+ FT_Bitmap *bmp = &face->glyph->bitmap;
int x, y;
- int flags=0;
+ int flags = 0;
Glyph *glyph;
- n=FT_Get_Char_Index(face, i);
- if(!n) continue;
+ n = FT_Get_Char_Index(face, i);
+ if(!n)
+ continue;
if(autohinter)
- flags|=FT_LOAD_FORCE_AUTOHINT;
+ flags |= FT_LOAD_FORCE_AUTOHINT;
FT_Load_Glyph(face, n, flags);
FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
if(font->n_glyphs>=size)
{
- size+=16;
- font->glyphs=(Glyph *)realloc(font->glyphs, size*sizeof(Glyph));
+ size += 16;
+ font->glyphs = (Glyph *)realloc(font->glyphs, size*sizeof(Glyph));
}
- glyph=&font->glyphs[font->n_glyphs++];
- glyph->code=i;
- glyph->image.w=bmp->width;
- glyph->image.h=bmp->rows;
- glyph->image.data=(char *)malloc(bmp->width*bmp->rows);
- glyph->offset_x=face->glyph->bitmap_left;
- glyph->offset_y=face->glyph->bitmap_top-bmp->rows;
- glyph->advance=(int)(face->glyph->advance.x+32)/64;
+ glyph = &font->glyphs[font->n_glyphs++];
+ glyph->code = i;
+ glyph->image.w = bmp->width;
+ glyph->image.h = bmp->rows;
+ glyph->image.data = (char *)malloc(bmp->width*bmp->rows);
+ glyph->offset_x = face->glyph->bitmap_left;
+ glyph->offset_y = face->glyph->bitmap_top-bmp->rows;
+ glyph->advance = (int)(face->glyph->advance.x+32)/64;
if(bmp->pitch<0)
{
for(y=0; y<bmp->rows; ++y) for(x=0; x<bmp->width; ++x)
- glyph->image.data[x+(glyph->image.h-1-y)*glyph->image.w]=bmp->buffer[x-y*bmp->pitch];
+ glyph->image.data[x+(glyph->image.h-1-y)*glyph->image.w] = bmp->buffer[x-y*bmp->pitch];
}
else
{
for(y=0; y<bmp->rows; ++y) for(x=0; x<bmp->width; ++x)
- glyph->image.data[x+y*glyph->image.w]=bmp->buffer[x+y*bmp->pitch];
+ glyph->image.data[x+y*glyph->image.w] = bmp->buffer[x+y*bmp->pitch];
}
}
void render_grid(Font *font, unsigned cell, unsigned cpl, int seq)
{
unsigned i;
- int top=0, bot=0;
+ int top = 0, bot = 0;
unsigned first, last;
- unsigned maxw=0, maxh=0;
+ unsigned maxw = 0, maxh = 0;
for(i=1;; i<<=1)
{
- first=font->glyphs[0].code&~(i-1);
- last=first+i-1;
+ first = font->glyphs[0].code&~(i-1);
+ last = first+i-1;
if(last>=font->glyphs[font->n_glyphs-1].code)
break;
}
{
int y;
- y=font->glyphs[i].offset_y+font->glyphs[i].image.h;
+ y = font->glyphs[i].offset_y+font->glyphs[i].image.h;
if(y>top)
- top=y;
+ top = y;
if(font->glyphs[i].offset_y<bot)
- bot=font->glyphs[i].offset_y;
+ bot = font->glyphs[i].offset_y;
if(font->glyphs[i].image.w>maxw)
- maxw=font->glyphs[i].image.w;
+ maxw = font->glyphs[i].image.w;
if(font->glyphs[i].image.h>maxh)
- maxh=font->glyphs[i].image.h;
+ maxh = font->glyphs[i].image.h;
}
if(cell==0)
{
- cell=top-bot;
+ cell = top-bot;
if(maxw>cell)
- cell=maxw;
+ cell = maxw;
}
if(verbose>=1)
printf("Max size: %u x %u\n", maxw, maxh);
printf("Y range: [%d %d]\n", bot, top);
if(maxw>cell || top-bot>cell)
- fprintf(stderr,"Warning: character size exceeds cell size (%d)\n", cell);
+ fprintf(stderr, "Warning: character size exceeds cell size (%d)\n", cell);
}
if(cpl==0)
{
- unsigned count=(seq ? font->n_glyphs : last-first+1);
+ unsigned count = (seq ? font->n_glyphs : last-first+1);
for(i=1;; i<<=1)
{
- cpl=i/cell;
+ cpl = i/cell;
if(cpl>0 && (count+cpl-1)/cpl<=cpl)
break;
}
}
- font->image.w=round_to_pot(cpl*cell);
+ font->image.w = round_to_pot(cpl*cell);
if(seq && font->n_glyphs<last-first+1)
- font->image.h=(font->n_glyphs+cpl-1)/cpl*cell;
+ font->image.h = (font->n_glyphs+cpl-1)/cpl*cell;
else
- font->image.h=(last-first+cpl)/cpl*cell;
- font->image.h=round_to_pot(font->image.h);
-
- font->image.data=(char *)malloc(font->image.w*font->image.h);
+ font->image.h = (last-first+cpl)/cpl*cell;
+ font->image.h = round_to_pot(font->image.h);
+
+ font->image.data = (char *)malloc(font->image.w*font->image.h);
memset(font->image.data, 255, font->image.w*font->image.h);
for(i=0; i<font->n_glyphs; ++i)
int cx, cy;
unsigned x, y;
- glyph=&font->glyphs[i];
+ glyph = &font->glyphs[i];
if(seq)
{
- cx=(i%cpl)*cell;
- cy=(i/cpl)*cell;
+ cx = (i%cpl)*cell;
+ cy = (i/cpl)*cell;
}
else
{
- cx=((glyph->code-first)%cpl)*cell;
- cy=((glyph->code-first)/cpl)*cell;
+ cx = ((glyph->code-first)%cpl)*cell;
+ cy = ((glyph->code-first)/cpl)*cell;
}
if(cell>glyph->image.w)
- cx+=(cell-glyph->image.w)/2;
- cy+=top-glyph->offset_y-glyph->image.h;
+ cx += (cell-glyph->image.w)/2;
+ cy += top-glyph->offset_y-glyph->image.h;
- glyph->x=cx;
- glyph->y=cy;
+ glyph->x = cx;
+ glyph->y = cy;
for(y=0; y<glyph->image.h; ++y) for(x=0; x<glyph->image.w; ++x)
{
- if(cx+x<0 || cx+x>=font->image.w || cy+y<0 || cy+y>=font->image.h) continue;
- font->image.data[cx+x+(cy+y)*font->image.w]=255-glyph->image.data[x+y*glyph->image.w];
+ if(cx+x<0 || cx+x>=font->image.w || cy+y<0 || cy+y>=font->image.h)
+ continue;
+ font->image.data[cx+x+(cy+y)*font->image.w] = 255-glyph->image.data[x+y*glyph->image.w];
}
}
}
void render_packed(Font *font)
{
unsigned i;
- unsigned area=0;
- unsigned last_h=0xFFFF;
+ unsigned area = 0;
+ unsigned last_h = 0xFFFF;
char *used_glyphs;
char *used_pixels;
- unsigned cx=0, cy;
+ unsigned cx = 0, cy;
for(i=0; i<font->n_glyphs; ++i)
area+=(font->glyphs[i].image.w+1)*(font->glyphs[i].image.h+1);
for(font->image.w=1;; font->image.w<<=1)
{
- font->image.h=(area*5/4)/font->image.w;
+ font->image.h = (area*5/4)/font->image.w;
if(font->image.h<=font->image.w)
break;
}
- font->image.h=round_to_pot(font->image.h);
-
- font->image.data=(char *)malloc(font->image.w*font->image.h);
+ font->image.h = round_to_pot(font->image.h);
+
+ font->image.data = (char *)malloc(font->image.w*font->image.h);
memset(font->image.data, 255, font->image.w*font->image.h);
- used_pixels=(char *)malloc(font->image.w*font->image.h);
+ used_pixels = (char *)malloc(font->image.w*font->image.h);
memset(used_pixels, 0, font->image.w*font->image.h);
- used_glyphs=(char *)malloc(font->n_glyphs);
+ used_glyphs = (char *)malloc(font->n_glyphs);
memset(used_glyphs, 0, font->n_glyphs);
for(cy=0; cy<font->image.h;)
{
unsigned w;
unsigned x, y;
- Glyph *glyph=NULL;
- unsigned best_score=0;
-
- for(; (cx<font->image.w && used_pixels[cx+cy*font->image.w]); ++cx);
+ Glyph *glyph = NULL;
+ unsigned best_score = 0;
+
+ for(; (cx<font->image.w && used_pixels[cx+cy*font->image.w]); ++cx) ;
if(cx>=font->image.w)
{
- cx=0;
+ cx = 0;
++cy;
- last_h=0xFFFF;
+ last_h = 0xFFFF;
continue;
}
- for(w=0; (cx+w<font->image.w && !used_pixels[cx+w+cy*font->image.w]); ++w);
+ for(w=0; (cx+w<font->image.w && !used_pixels[cx+w+cy*font->image.w]); ++w) ;
for(i=0; i<font->n_glyphs; ++i)
{
- Glyph *g;
+ Glyph *g;
- g=&font->glyphs[i];
+ g = &font->glyphs[i];
if(!used_glyphs[i] && g->image.w<=w)
{
unsigned score;
- score=g->image.h+1;
+ score = g->image.h+1;
if(g->image.h==last_h)
- score*=g->image.w;
+ score *= g->image.w;
else
- score+=g->image.w;
+ score += g->image.w;
if(score>best_score)
{
- glyph=g;
- best_score=score;
+ glyph = g;
+ best_score = score;
}
}
}
if(!glyph)
{
- cx+=w;
+ cx += w;
continue;
}
- used_glyphs[glyph-font->glyphs]=1;
- glyph->x=cx;
- glyph->y=cy;
+ used_glyphs[glyph-font->glyphs] = 1;
+ glyph->x = cx;
+ glyph->y = cy;
for(y=0; y<glyph->image.h; ++y) for(x=0; x<glyph->image.w; ++x)
{
- if(cx+x<0 || cx+x>=font->image.w || cy+y<0 || cy+y>=font->image.h) continue;
- font->image.data[cx+x+(cy+y)*font->image.w]=255-glyph->image.data[x+y*glyph->image.w];
+ if(cx+x<0 || cx+x>=font->image.w || cy+y<0 || cy+y>=font->image.h)
+ continue;
+ font->image.data[cx+x+(cy+y)*font->image.w] = 255-glyph->image.data[x+y*glyph->image.w];
}
for(y=0; y<glyph->image.h+2; ++y) for(x=0; x<glyph->image.w+2; ++x)
{
- if(cx+x<1 || cx+x>font->image.w || cy+y<1 || cy+y>font->image.h) continue;
- used_pixels[cx+x-1+(cy+y-1)*font->image.w]=1;
+ if(cx+x<1 || cx+x>font->image.w || cy+y<1 || cy+y>font->image.h)
+ continue;
+ used_pixels[cx+x-1+(cy+y-1)*font->image.w] = 1;
}
- last_h=glyph->image.h;
+ last_h = glyph->image.h;
}
}
FILE *out;
unsigned i;
- out=fopen(fn, "w");
+ out = fopen(fn, "w");
if(!out)
{
fprintf(stderr, "Couldn't open %s\n",fn);
fprintf(out, "%d %d %d %d %d\n", font->image.w, font->image.h, font->size, font->ascent, font->descent);
for(i=0; i<font->n_glyphs; ++i)
{
- const Glyph *g=&font->glyphs[i];
+ const Glyph *g = &font->glyphs[i];
fprintf(out, "%u %u %u %u %u %d %d %d\n", g->code, g->x, g->y, g->image.w, g->image.h, g->offset_x, g->offset_y, g->advance);
}
int color;
if(!strcmp(fn, "-"))
- out=stdout;
+ out = stdout;
else
{
- out=fopen(fn, "wb");
+ out = fopen(fn, "wb");
if(!out)
{
fprintf(stderr, "Couldn't open %s\n",fn);
}
}
- pngs=png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ pngs = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if(!pngs)
{
fprintf(stderr, "Error writing PNG file\n");
return -1;
}
- pngi=png_create_info_struct(pngs);
+ pngi = png_create_info_struct(pngs);
if(!pngi)
{
png_destroy_write_struct(&pngs, NULL);
png_init_io(pngs, out);
if(alpha)
{
- data2=(png_byte *)malloc(image->w*image->h*2);
+ data2 = (png_byte *)malloc(image->w*image->h*2);
for(i=0; i<image->w*image->h; ++i)
{
- data2[i*2]=255;
- data2[i*2+1]=255-image->data[i];
+ data2[i*2] = 255;
+ data2[i*2+1] = 255-image->data[i];
}
for(i=0; i<image->h; ++i)
- rows[i]=(png_byte *)(data2+i*image->w*2);
- color=PNG_COLOR_TYPE_GRAY_ALPHA;
+ rows[i] = (png_byte *)(data2+i*image->w*2);
+ color = PNG_COLOR_TYPE_GRAY_ALPHA;
}
else
{
for(i=0; i<image->h; ++i)
- rows[i]=(png_byte *)(image->data+i*image->w);
- color=PNG_COLOR_TYPE_GRAY;
+ rows[i] = (png_byte *)(image->data+i*image->w);
+ color = PNG_COLOR_TYPE_GRAY;
}
png_set_IHDR(pngs, pngi, image->w, image->h, 8, color, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_set_rows(pngs, pngi, rows);
if(alpha)
free(data2);
- if(verbose) printf("Saved %dx%d PNG image to %s\n", image->w, image->h, fn);
+ if(verbose)
+ printf("Saved %dx%d PNG image to %s\n", image->w, image->h, fn);
fclose(out);
projects / ttf2png.git / commitdiff