/*
ttf2png - True Type Font to PNG converter
-Copyright (c) 2004 Mikkosoft Productions
+Copyright (c) 2004-2008 Mikko Rasa
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include <stdio.h>
+#include <ctype.h>
#include <unistd.h>
#include <getopt.h>
#include <png.h>
#include <ft2build.h>
#include FT_FREETYPE_H
+typedef struct sImage
+{
+ unsigned w, h;
+ char *data;
+} Image;
+
+typedef struct sGlyph
+{
+ unsigned code;
+ Image image;
+ unsigned x, y;
+ int offset_x;
+ int offset_y;
+ int advance;
+} Glyph;
+
+typedef struct sFont
+{
+ unsigned size;
+ int ascent;
+ int descent;
+ unsigned n_glyphs;
+ Glyph *glyphs;
+ Image image;
+} Font;
+
+unsigned round_to_pot(unsigned);
void usage();
-int save_png(char *, char *, int, int);
+void init_font(Font *, FT_Face, unsigned, unsigned, int);
+void render_grid(Font *, unsigned, unsigned, unsigned, int);
+void render_packed(Font *);
+int save_defs(const char *, const Font *);
+int save_png(const char *, const Image *, char);
-char verbose=0;
-char alpha=0;
+char verbose = 0;
int main(int argc, char **argv)
{
- FT_Library freetype;
- FT_Face face;
- int err;
- int o;
- int begin=0;
- int end=255;
- char *fn;
- int size=10;
- int cpl=16;
- int w,h;
- int i;
- char *data;
- int ch,cw;
- int cell=16;
- int ascent;
- char *out="font.png";
- const char *name;
- char autohinter=0;
- int count;
+ char *fn;
+ int begin = 0;
+ int end = 255;
+ int size = 10;
+ int cpl = 0;
+ int cellw = 0;
+ int cellh = 0;
+ char autohinter = 0;
+ char seq = 0;
+ char alpha = 0;
+ char invert = 0;
+ char pack = 0;
+
+ FT_Library freetype;
+ FT_Face face;
+
+ int err;
+ int i;
+
+ char *out_fn = "font.png";
+ char *def_fn = NULL;
+
+ Font font;
if(argc<2)
{
return 1;
}
- while((o=getopt(argc,argv,"r:s:l:c:o:atvh?"))!=-1)
+ while((i = getopt(argc, argv, "r:s:l:c:o:atvh?ed:pi")) != -1)
{
- char *ptr;
- int temp;
- switch(o)
+ char *ptr;
+ int temp;
+ switch(i)
{
case 'r':
- if(!isdigit(optarg[0])) temp=-1;
- else
+ if(!strcmp(optarg, "all"))
{
- temp=strtol(optarg,&ptr,0);
- if(ptr[0]!=',' || !isdigit(ptr[1])) temp=-1;
+ begin = 0;
+ end = 0x110000;
}
- if(temp<0)
- printf("Not a valid range: %s\n",optarg);
else
{
- begin=temp;
- end=strtol(ptr+1,NULL,0);
+ if(!isdigit(optarg[0]))
+ temp = -1;
+ else
+ {
+ temp = strtol(optarg, &ptr, 0);
+ if(ptr[0]!=',' || !isdigit(ptr[1]))
+ temp = -1;
+ }
+ if(temp<0)
+ {
+ printf("Not a valid range: %s\n", optarg);
+ exit(1);
+ }
+ else
+ {
+ 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);
+ if(!strcmp(optarg, "auto"))
+ {
+ cellw = 0;
+ cellh = 0;
+ }
+ else if(!strcmp(optarg, "autorect"))
+ {
+ cellw = 0;
+ cellh = 1;
+ }
+ else
+ {
+ cellw = strtol(optarg, &ptr, 0);
+ if(ptr[0]=='x' && isdigit(ptr[1]))
+ cellh = strtol(ptr+1, NULL, 0);
+ }
break;
case 'o':
- out=optarg;
+ out_fn = optarg;
break;
case 'a':
- autohinter=1;
+ autohinter = 1;
break;
case 't':
- alpha=1;
+ alpha = 1;
break;
case 'v':
++verbose;
case '?':
usage();
return 0;
+ case 'e':
+ seq = 1;
+ break;
+ case 'd':
+ def_fn = optarg;
+ break;
+ case 'p':
+ pack = 1;
+ break;
+ case 'i':
+ invert = 1;
+ break;
}
}
+ if(!strcmp(out_fn, "-"))
+ verbose = 0;
- if(optind>=argc)
+ 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");
+ 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");
+ fprintf(stderr, "Couldn't load font file\n");
if(err==FT_Err_Unknown_File_Format)
- fprintf(stderr,"Unknown file format\n");
+ fprintf(stderr, "Unknown file format\n");
return 1;
}
- name=FT_Get_Postscript_Name(face);
if(verbose)
{
- printf("Font name: %s\n",name);
- printf("Glyphs: %ld\n",face->num_glyphs);
+ 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");
+ fprintf(stderr, "Couldn't set size\n");
return 1;
}
- ascent=(face->bbox.yMax*face->size->metrics.x_scale)>>16;
- ascent=(ascent+63)/64;
- ch=((face->bbox.yMax-face->bbox.yMin)*face->size->metrics.y_scale)>>16;
- ch=(ch+63)/64;
- cw=((face->bbox.xMax-face->bbox.xMin)*face->size->metrics.x_scale)>>16;
- cw=(cw+63)/64;
- if(verbose)
+
+ font.size = size;
+ init_font(&font, face, begin, end, autohinter);
+ if(pack)
+ render_packed(&font);
+ else
+ render_grid(&font, cellw, cellh, cpl, seq);
+ if(invert)
{
- printf("Ascent %d\n",ascent);
- printf("Descent %ld\n",(((face->bbox.yMin*face->size->metrics.y_scale)>>16)+63)/64);
- printf("Max height %d\n",ch);
- printf("Max width %d\n",cw);
+ for(i=0; i<font.image.w*font.image.h; ++i)
+ font.image.data[i] = 255-font.image.data[i];
}
- if(verbose>=1 && (ch>cell || cw>cell)) fprintf(stderr,"Warning: character size exceeds cell size\n");
+ save_png(out_fn, &font.image, alpha);
+ if(def_fn)
+ save_defs(def_fn, &font);
+
+ for(i=0; i<font.n_glyphs; ++i)
+ free(font.glyphs[i].image.data);
+ free(font.glyphs);
+ free(font.image.data);
+
+ FT_Done_Face(face);
+ FT_Done_FreeType(freetype);
+
+ return 0;
+}
- w=cpl*cell;
- h=(end-begin+cpl-1)/cpl*cell;
- data=(char *)malloc(w*h);
- memset(data,255,w*h);
+unsigned round_to_pot(unsigned n)
+{
+ n -= 1;
+ n |= n>>1;
+ n |= n>>2;
+ n |= n>>4;
+ n |= n>>8;
+ n |= n>>16;
+
+ return n+1;
+}
- count=0;
- for(i=begin;i<=end;++i)
+void usage()
+{
+ printf("ttf2png - True Type Font to PNG converter\n"
+ "Copyright (c) 2004-2008 Mikko Rasa, Mikkosoft Productions\n"
+ "Distributed under the GNU General Public License\n\n"
+ "Usage: ttf2png [options] <TTF file>\n\n"
+ "Accepted options (default values in [brackets])\n"
+ " -r Range of characters to convert [0,255]\n"
+ " -s Font size to use, in pixels [10]\n"
+ " -l Number of characters to put in one line [auto]\n"
+ " -c Character cell size, in pixels [auto]\n"
+ " -o Output file name (or - for stdout) [font.png]\n"
+ " -a Force autohinter\n"
+ " -t Render glyphs to alpha channel\n"
+ " -i Invert colors of the glyphs\n"
+ " -v Increase the level of verbosity\n"
+ " -e Use cells in sequence, without gaps\n"
+ " -p Pack the glyphs tightly instead of in a grid\n"
+ " -d File name for writing glyph definitions\n"
+ " -h Print this message\n");
+}
+
+void init_font(Font *font, FT_Face face, unsigned first, unsigned last, int autohinter)
+{
+ unsigned i;
+ unsigned size = 0;
+
+ 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;
+ for(i=first; i<=last; ++i)
{
- int glyph=FT_Get_Char_Index(face,i);
- FT_Bitmap *bmp=&face->glyph->bitmap;
- int x,y;
- int cx=(i%cpl)*cell;
- int cy=(i/cpl)*cell;
- int flags=0;
- int dy;
- if(!glyph) continue;
- fflush(stdout);
- if(autohinter) flags|=FT_LOAD_FORCE_AUTOHINT;
- FT_Load_Glyph(face,glyph,flags);
- FT_Render_Glyph(face->glyph,FT_RENDER_MODE_NORMAL);
- if(cell>bmp->width) cx+=(cell-bmp->width)/2;
- dy=ascent-face->glyph->bitmap_top;
- cy+=dy;
+ unsigned n;
+ FT_Bitmap *bmp = &face->glyph->bitmap;
+ int x, y;
+ int flags = 0;
+ Glyph *glyph;
+
+ n = FT_Get_Char_Index(face, i);
+ if(!n)
+ continue;
+
+ if(autohinter)
+ flags |= FT_LOAD_FORCE_AUTOHINT;
+ FT_Load_Glyph(face, n, flags);
+ FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
+
if(verbose>=2)
+ printf(" Char %u: glyph %u, size %dx%d\n", i, n, bmp->width, bmp->rows);
+
+ if(bmp->pixel_mode!=FT_PIXEL_MODE_GRAY)
+ {
+ fprintf(stderr, "Warning: Glyph %u skipped, not grayscale\n", n);
+ continue;
+ }
+
+ if(font->n_glyphs>=size)
{
- printf(" Char %d: glyph %d, size %dx%d\n",i,glyph,bmp->width,bmp->rows);
- if(bmp->width>cell || dy+bmp->rows>cell || dy<0) printf(" Warning: Character %d does not fit in cell\n",i);
+ 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;
+
+ /* Copy the glyph image since FreeType uses a global buffer, which would
+ be overwritten by the next glyph. Negative pitch means the scanlines
+ start from the bottom */
if(bmp->pitch<0)
{
- fprintf(stderr,"Warning: Character %d not rendered (can't handle reversed bitmaps)\n",i);
- continue;
+ 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];
}
- for(y=0;y<bmp->rows;++y) for(x=0;x<bmp->width;++x)
+ else
{
- if(cx+x<0 || cx+x>=w || cy+y<0 || cy+y>=h) continue;
- data[cx+x+(cy+y)*w]=255-bmp->buffer[x+y*bmp->pitch];
+ 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];
}
- ++count;
}
- save_png(out,data,w,h);
+ if(verbose>=1)
+ printf("Loaded %u glyphs\n", font->n_glyphs);
+}
+
+void render_grid(Font *font, unsigned cellw, unsigned cellh, unsigned cpl, int seq)
+{
+ unsigned i;
+ int top = 0, bot = 0;
+ unsigned first, last;
+ unsigned maxw = 0, maxh = 0;
- if(verbose) printf("Converted %d glyphs\n",count);
+ /* Find extremes of the glyph images. */
+ for(i=0; i<font->n_glyphs; ++i)
+ {
+ int y;
- return 0;
+ y = font->glyphs[i].offset_y+font->glyphs[i].image.h;
+ if(y>top)
+ top = y;
+ if(font->glyphs[i].offset_y<bot)
+ bot = font->glyphs[i].offset_y;
+ if(font->glyphs[i].image.w>maxw)
+ maxw = font->glyphs[i].image.w;
+ if(font->glyphs[i].image.h>maxh)
+ maxh = font->glyphs[i].image.h;
+ }
+
+ if(cellw==0)
+ {
+ /* Establish a large enough cell to hold all glyphs in the range. */
+ int square = (cellh==cellw);
+ cellw = maxw;
+ cellh = top-bot;
+ if(square)
+ {
+ if(cellh>cellw)
+ cellw = cellh;
+ else
+ cellh = cellw;
+ }
+ }
+
+ if(verbose>=1)
+ {
+ printf("Max size: %u x %u\n", maxw, maxh);
+ printf("Y range: [%d %d]\n", bot, top);
+ printf("Cell size: %u x %u\n", cellw, cellh);
+ if(maxw>cellw || top-bot>cellh)
+ fprintf(stderr, "Warning: character size exceeds cell size\n");
+ }
+
+ if(cpl==0)
+ {
+ /* Determine number of characters per line, trying to fit all the glyphs
+ in a square image. */
+ for(i=1;; i<<=1)
+ {
+ cpl = i/cellw;
+ if(cpl>0 && font->n_glyphs/cpl*cellh<=cpl*cellw)
+ break;
+ }
+ }
+
+ first = font->glyphs[0].code;
+ if(!seq)
+ first -= first%cpl;
+ last = font->glyphs[font->n_glyphs-1].code;
+
+ font->image.w = round_to_pot(cpl*cellw);
+ font->image.h = round_to_pot((last-first+cpl)/cpl*cellh);
+
+ 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)
+ {
+ Glyph *glyph;
+ int ci, cx, cy;
+ unsigned x, y;
+
+ glyph = &font->glyphs[i];
+
+ if(seq)
+ ci = i;
+ else
+ ci = glyph->code-first;
+
+ cx = (ci%cpl)*cellw;
+ cy = (ci/cpl)*cellh;
+
+ if(cellw>glyph->image.w)
+ cx += (cellw-glyph->image.w)/2;
+ cy += top-glyph->offset_y-glyph->image.h;
+
+ 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];
+ }
+ }
}
-void usage()
+void render_packed(Font *font)
{
- printf("ttf2png - True Type Font to PNG converter\n"
- "Copyright (c) 2004 Mikkosoft Productions\n"
- "Distributed under the GNU General Public License\n\n"
- "Usage: ttf2png [options] <TTF file>\n\n"
- "Accepted options (default values in [brackets])\n"
- " -r Range of characters to convert in the format low,high [0,255]\n"
- " -s Font size to use, in pixels [10]\n"
- " -l Number of characters to put in one line [16]\n"
- " -c Character cell size, in pixels [16]\n"
- " -o Output file name [font.png]\n"
- " -a Force autohinter\n"
- " -t Render font to alpha channel\n"
- " -v Increase the level of verbosity\n"
- " -h Print this message\n");
+ unsigned i;
+ unsigned area = 0;
+ char *used_glyphs;
+ unsigned *used_pixels;
+ unsigned cx = 0, cy;
+ unsigned used_h = 0;
+
+ /* Compute the total area occupied by glyphs and padding. */
+ for(i=0; i<font->n_glyphs; ++i)
+ area += (font->glyphs[i].image.w+1)*(font->glyphs[i].image.h+1);
+
+ /* Find an image size that's no higher than wide, allowing for some
+ imperfections in the packing. */
+ for(font->image.w=1;; font->image.w<<=1)
+ {
+ 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);
+
+ /* Allocate arrays for storing the image and keeping track of used pixels and
+ glyphs. Since glyphs are rectangular and the image is filled starting from
+ the top, it's enough to track the number of used pixels at the top of each
+ column. */
+ font->image.data = (char *)malloc(font->image.w*font->image.h);
+ memset(font->image.data, 255, font->image.w*font->image.h);
+ used_pixels = (unsigned *)malloc(font->image.w*sizeof(unsigned));
+ memset(used_pixels, 0, font->image.w*sizeof(unsigned));
+ 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;
+ unsigned target_h = 0;
+
+ /* Find the leftmost free pixel on this row. Also record the lowest extent of glyphs
+ to the left of the free position. */
+ for(; (cx<font->image.w && used_pixels[cx]>cy); ++cx)
+ if(used_pixels[cx]-cy-1>target_h)
+ target_h = used_pixels[cx]-cy-1;
+
+ if(cx>=font->image.w)
+ {
+ cx = 0;
+ ++cy;
+ continue;
+ }
+
+ /* Count the free pixel at this position. */
+ for(w=0; (cx+w<font->image.w && used_pixels[cx+w]<=cy); ++w) ;
+
+ /* Find a suitable glyph to put here. */
+ for(i=0; i<font->n_glyphs; ++i)
+ {
+ Glyph *g;
+
+ g = &font->glyphs[i];
+ if(!used_glyphs[i] && g->image.w<=w)
+ {
+ unsigned score;
+
+ /* Prefer glyphs that would reach exactly as low as the ones left
+ of here. This aims to create a straight edge at the bottom for
+ lining up further glyphs. */
+ score = g->image.h+1;
+ if(g->image.h==target_h)
+ score *= g->image.w;
+ else
+ score += g->image.w;
+
+ if(score>best_score)
+ {
+ glyph = g;
+ best_score = score;
+ }
+ }
+ }
+
+ if(!glyph)
+ {
+ cx += w;
+ continue;
+ }
+
+ 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];
+ }
+ for(x=0; x<glyph->image.w+2; ++x)
+ {
+ if(cx+x<1 || cx+x>font->image.w)
+ continue;
+ if(used_pixels[cx+x-1]<cy+glyph->image.h+1)
+ used_pixels[cx+x-1] = cy+glyph->image.h+1;
+ }
+
+ if(cy+glyph->image.h>used_h)
+ used_h = cy+glyph->image.h;
+ }
+
+ /* Trim the image to the actually used size, in case the original estimate
+ was too pessimistic. */
+ font->image.h = round_to_pot(used_h);
}
-int save_png(char *fn, char *data, int w, int h)
+int save_defs(const char *fn, const Font *font)
{
- FILE *out;
- png_struct *pngs;
- png_info *pngi;
- png_byte *rows[h];
- int i;
- png_byte *data2;
- int color;
-
- out=fopen(fn,"wb");
+ FILE *out;
+ unsigned i;
+
+ out = fopen(fn, "w");
if(!out)
{
- fprintf(stderr,"Couldn't open output file\n");
+ fprintf(stderr, "Couldn't open %s\n",fn);
return -1;
}
- pngs=png_create_write_struct(PNG_LIBPNG_VER_STRING,NULL,NULL,NULL);
+ fprintf(out, "# Image/font info:\n");
+ fprintf(out, "# width height size ascent descent\n");
+ fprintf(out, "%d %d %d %d %d\n", font->image.w, font->image.h, font->size, font->ascent, font->descent);
+ fprintf(out, "\n# Glyph info:\n");
+ fprintf(out, "# code x y width height offset_x offset_y advance\n");
+ for(i=0; i<font->n_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);
+ }
+
+ fclose(out);
+
+ return 0;
+}
+
+int save_png(const char *fn, const Image *image, char alpha)
+{
+ FILE *out;
+ png_struct *pngs;
+ png_info *pngi;
+ png_byte *rows[image->h];
+ int i;
+ png_byte *data2;
+ int color;
+
+ if(!strcmp(fn, "-"))
+ out = stdout;
+ else
+ {
+ out = fopen(fn, "wb");
+ if(!out)
+ {
+ fprintf(stderr, "Couldn't open %s\n",fn);
+ return -1;
+ }
+ }
+
+ pngs = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if(!pngs)
{
- fprintf(stderr,"Error writing PNG file\n");
+ 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);
- fprintf(stderr,"Error writing PNG file\n");
+ png_destroy_write_struct(&pngs, NULL);
+ fprintf(stderr, "Error writing PNG file\n");
return -1;
}
- png_init_io(pngs,out);
+ png_init_io(pngs, out);
if(alpha)
{
- data2=(png_byte *)malloc(w*h*2);
- for(i=0;i<w*h;++i)
+ 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-data[i];
+ data2[i*2] = 255;
+ data2[i*2+1] = 255-image->data[i];
}
- for(i=0;i<h;++i)
- rows[i]=(png_byte *)(data2+i*w*2);
- color=PNG_COLOR_TYPE_GRAY_ALPHA;
+ for(i=0; i<image->h; ++i)
+ rows[i] = (png_byte *)(data2+i*image->w*2);
+ color = PNG_COLOR_TYPE_GRAY_ALPHA;
}
else
{
- for(i=0;i<h;++i)
- rows[i]=(png_byte *)(data+i*w);
- color=PNG_COLOR_TYPE_GRAY;
+ for(i=0; i<image->h; ++i)
+ rows[i] = (png_byte *)(image->data+i*image->w);
+ color = PNG_COLOR_TYPE_GRAY;
}
- png_set_IHDR(pngs,pngi,w,h,8,color,PNG_INTERLACE_NONE,PNG_COMPRESSION_TYPE_DEFAULT,PNG_FILTER_TYPE_DEFAULT);
- png_set_rows(pngs,pngi,rows);
- png_write_png(pngs,pngi,PNG_TRANSFORM_IDENTITY,NULL);
- png_destroy_write_struct(&pngs,&pngi);
- if(alpha) free(data2);
+ 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);
+ png_write_png(pngs, pngi, PNG_TRANSFORM_IDENTITY, NULL);
+ png_destroy_write_struct(&pngs, &pngi);
+ 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",w,h,fn);
+ fclose(out);
return 0;
}
projects / ttf2png.git / blobdiff