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convttf: Switch to c99 fixed size integers for fnt file header

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Change-Id: Idff55a88a9bddaec42e568cf3c3ff3f6df15ec34
This commit is contained in:
Solomon Peachy 2025-05-23 08:44:46 -04:00
parent adaae1731f
commit 2f6ecaf3c2
1 changed files with 53 additions and 52 deletions
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105
tools/convttf.c
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@ -35,6 +35,7 @@
#include FT_TRUETYPE_TABLES_H #include FT_TRUETYPE_TABLES_H
#include <string.h> #include <string.h>
#include <stdint.h>
/* /*
* Set the default values used to generate a BDF font. * Set the default values used to generate a BDF font.
*/ */
@ -114,26 +115,26 @@ int trim_aa = 0; /* trim ascent actual */
int ft_load_opts = FT_LOAD_RENDER | FT_LOAD_NO_BITMAP; int ft_load_opts = FT_LOAD_RENDER | FT_LOAD_NO_BITMAP;
struct font_header_struct { struct font_header_struct {
char header[4]; /* magic number and version bytes */ uint8_t header[4]; /* magic number and version bytes */
unsigned short maxwidth; /* max width in pixels */ uint16_t maxwidth; /* max width in pixels */
unsigned short height; /* height in pixels */ uint16_t height; /* height in pixels */
unsigned short ascent; /* ascent (baseline) height */ uint16_t ascent; /* ascent (baseline) height */
unsigned short depth; /* depth 0=1-bit, 1=4-bit */ uint16_t depth; /* depth 0=1-bit, 1=4-bit */
unsigned long firstchar; /* first character in font */ uint32_t firstchar; /* first character in font */
unsigned long defaultchar; /* default character in font */ uint32_t defaultchar; /* default character in font */
unsigned long size; /* # characters in font */ uint32_t size; /* # characters in font */
unsigned long nbits; /* # bytes imagebits data in file */ /* = bits_size */ uint32_t nbits; /* # bytes imagebits data in file */ /* = bits_size */
FT_Long noffset; /* # longs offset data in file */ uint32_t noffset; /* # longs offset data in file */
FT_Long nwidth; /* # bytes width data in file */ uint32_t nwidth; /* # bytes width data in file */
}; };
struct font_struct { struct font_struct {
struct font_header_struct header; struct font_header_struct header;
unsigned char *chars_data; uint8_t *chars_data;
unsigned short *offset; uint16_t *offset;
FT_Long *offset_long; uint32_t *offset_long;
unsigned char *width; uint8_t *width;
}; };
struct ttc_table{ struct ttc_table{
@ -189,7 +190,7 @@ void usage(void)
" Default output-file : <font-size>-<basename>.fnt.\n" " Default output-file : <font-size>-<basename>.fnt.\n"
" When '-ta' or '-tc' is specified in command line,\n " " When '-ta' or '-tc' is specified in command line,\n "
" default output-file is: \n" " default output-file is: \n"
" <font-size>-<internal postscript-name of input-file>.fnt.\n" " <font-size>-<internal postscript-name of input-file>.fnt.\n"
"Options:\n" "Options:\n"
" -s N Start output at character encodings >= N\n" " -s N Start output at character encodings >= N\n"
" -l N Limit output to character encodings <= N\n" " -l N Limit output to character encodings <= N\n"
@ -421,7 +422,7 @@ int get_ttc_table(char *path, struct ttc_table *ttcname )
ttcname->ttc_count = 0; ttcname->ttc_count = 0;
/* Initialize engine */ /* Initialize engine */
if ( ( err = FT_Init_FreeType( &library ) ) != 0 ) if ( ( err = FT_Init_FreeType( &library ) ) != 0 )
{ {
panic( "Error while initializing engine" ); panic( "Error while initializing engine" );
return err; return err;
@ -499,11 +500,11 @@ void print_raw_glyph( FT_Face face)
width = face->glyph->metrics.width >> 6; width = face->glyph->metrics.width >> 6;
printf("\n---Raw-Glyph---\n"); printf("\n---Raw-Glyph---\n");
for(row=0; row < face->glyph->metrics.height >> 6; row++) for(row=0; row < face->glyph->metrics.height >> 6; row++)
{ {
printf("_"); printf("_");
for(col=0; col < width; col++) for(col=0; col < width; col++)
{ {
pixel = *(face->glyph->bitmap.buffer+width*row+col)/26; pixel = *(face->glyph->bitmap.buffer+width*row+col)/26;
if ( pixel ) printf("%d",pixel); else printf(" "); if ( pixel ) printf("%d",pixel); else printf(" ");
} }
@ -561,7 +562,7 @@ FT_Long check_digit_width( FT_Face face )
return last_advance >> 6; return last_advance >> 6;
} }
void trim_glyph( FT_GlyphSlot glyph, int *empty_first_col, void trim_glyph( FT_GlyphSlot glyph, int *empty_first_col,
int *empty_last_col, int *width ) int *empty_last_col, int *width )
{ {
int row; int row;
@ -629,7 +630,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
unsigned char pixel_per_byte = CHAR_BIT / bit_shift; unsigned char pixel_per_byte = CHAR_BIT / bit_shift;
struct font_struct export_font; struct font_struct export_font;
char pad[] = {0,0,0,0}; char pad[] = {0,0,0,0};
int skip,i; unsigned int skip,i;
FILE *file; FILE *file;
/* Initialize engine */ /* Initialize engine */
@ -697,8 +698,8 @@ void convttf(char* path, char* destfile, FT_Long face_index)
empty_first_col = empty_last_col = 0; empty_first_col = empty_last_col = 0;
if(trimming) if(trimming)
trim_glyph( face->glyph, &empty_first_col, &empty_last_col, &w); trim_glyph( face->glyph, &empty_first_col, &empty_last_col, &w);
if (export_font.header.maxwidth < w) if (export_font.header.maxwidth < w)
export_font.header.maxwidth = w; export_font.header.maxwidth = w;
@ -717,7 +718,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
export_font.header.nbits = idx; export_font.header.nbits = idx;
export_font.header.noffset = export_font.header.size; export_font.header.noffset = export_font.header.size;
export_font.header.nwidth = export_font.header.size; export_font.header.nwidth = export_font.header.size;
/* check if we need to use long offsets */ /* check if we need to use long offsets */
use_long_offset = (export_font.header.nbits >= 0xFFDB ); use_long_offset = (export_font.header.nbits >= 0xFFDB );
@ -725,17 +726,17 @@ void convttf(char* path, char* destfile, FT_Long face_index)
export_font.offset = NULL; export_font.offset = NULL;
export_font.offset_long = NULL; export_font.offset_long = NULL;
if (use_long_offset) if (use_long_offset)
export_font.offset_long = export_font.offset_long =
malloc( sizeof(FT_Long)* export_font.header.noffset ); malloc( sizeof(FT_Long)* export_font.header.noffset );
else else
export_font.offset = export_font.offset =
malloc( sizeof(unsigned short)* export_font.header.noffset ); malloc( sizeof(unsigned short)* export_font.header.noffset );
export_font.width = export_font.width =
malloc( sizeof(unsigned char) * export_font.header.nwidth ); malloc( sizeof(unsigned char) * export_font.header.nwidth );
export_font.chars_data = export_font.chars_data =
malloc( sizeof(unsigned char) * export_font.header.nbits ); malloc( sizeof(unsigned char) * export_font.header.nbits );
/* for now we use the full height for each character */ /* for now we use the full height for each character */
h = export_font.header.height; h = export_font.header.height;
@ -761,7 +762,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
/* Get gylph index from the char and render it */ /* Get gylph index from the char and render it */
charindex = getcharindex( face, code); charindex = getcharindex( face, code);
if ( !charindex ) if ( !charindex )
{ {
if ( use_long_offset ) if ( use_long_offset )
export_font.offset_long[code - firstchar] = export_font.offset_long[0]; export_font.offset_long[code - firstchar] = export_font.offset_long[0];
@ -770,7 +771,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
export_font.width[code - firstchar] = export_font.width[0]; export_font.width[code - firstchar] = export_font.width[0];
continue; continue;
} }
err = FT_Load_Glyph(face, charindex, ft_load_opts); err = FT_Load_Glyph(face, charindex, ft_load_opts);
if ( err ) { if ( err ) {
continue; continue;
@ -791,7 +792,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
if(trimming) if(trimming)
trim_glyph( face->glyph, &empty_first_col, &empty_last_col, &w ); trim_glyph( face->glyph, &empty_first_col, &empty_last_col, &w );
if ( use_long_offset ) if ( use_long_offset )
export_font.offset_long[code - firstchar] = idx; export_font.offset_long[code - firstchar] = idx;
else else
@ -839,7 +840,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
field = 0; field = 0;
numbits = pixel_per_byte; numbits = pixel_per_byte;
for(row=0; row < h; row++) for(row=0; row < h; row++)
{ {
for(col=0; col < w; col++) for(col=0; col < w; col++)
{ {
@ -937,23 +938,23 @@ void convttf(char* path, char* destfile, FT_Long face_index)
writeint(file, export_font.header.noffset); writeint(file, export_font.header.noffset);
writeint(file, export_font.header.nwidth); writeint(file, export_font.header.nwidth);
fwrite( (char*)export_font.chars_data, 1, fwrite( (char*)export_font.chars_data, 1,
export_font.header.nbits, file); export_font.header.nbits, file);
free(export_font.chars_data); free(export_font.chars_data);
if ( use_long_offset ) if ( use_long_offset )
{ {
skip = ((export_font.header.nbits + 3) & ~3) - skip = ((export_font.header.nbits + 3) & ~3) -
export_font.header.nbits; export_font.header.nbits;
fwrite(pad, 1, skip, file); /* pad */ fwrite(pad, 1, skip, file); /* pad */
for(i = 0; i < export_font.header.noffset; i++) for(i = 0; i < export_font.header.noffset; i++)
writeint(file, export_font.offset_long[i]); writeint(file, export_font.offset_long[i]);
} }
else else
{ {
skip = ((export_font.header.nbits + 1) & ~1) - skip = ((export_font.header.nbits + 1) & ~1) -
export_font.header.nbits; export_font.header.nbits;
fwrite(pad, 1, skip, file); /* pad */ fwrite(pad, 1, skip, file); /* pad */
for(i = 0; i < export_font.header.noffset; i++) for(i = 0; i < export_font.header.noffset; i++)
@ -964,9 +965,9 @@ void convttf(char* path, char* destfile, FT_Long face_index)
writebyte(file, export_font.width[i]); writebyte(file, export_font.width[i]);
free(export_font.width); free(export_font.width);
if ( use_long_offset ) if ( use_long_offset )
free(export_font.offset_long); free(export_font.offset_long);
else else
free(export_font.offset); free(export_font.offset);
fclose(file); fclose(file);
@ -984,14 +985,14 @@ void convttc(char* path)
get_ttc_table(path, &ttcname); get_ttc_table(path, &ttcname);
if (ttcname.ttc_count == 0) if (ttcname.ttc_count == 0)
{ {
printf("This file is a not true type font.\n"); printf("This file is a not true type font.\n");
return; return;
} }
/* default */ /* default */
if (!flg_all_ttc && ttc_index == -1) if (!flg_all_ttc && ttc_index == -1)
{ {
if (!oflag) if (!oflag)
{ /* generate filename */ { /* generate filename */
@ -1005,12 +1006,12 @@ void convttc(char* path)
else if (!flg_all_ttc) else if (!flg_all_ttc)
{ {
print_ttc_table(path); print_ttc_table(path);
if ( !oflag ) if ( !oflag )
{ {
if (ttc_index >= 0 && if (ttc_index >= 0 &&
ttc_index < ttcname.ttc_count) ttc_index < ttcname.ttc_count)
{ {
if (strcmp(ttcname.ttf_name[ttc_index], "") != 0) if (strcmp(ttcname.ttf_name[ttc_index], "") != 0)
{ {
snprintf(outfile, sizeof(outfile), "%d-%s.fnt", snprintf(outfile, sizeof(outfile), "%d-%s.fnt",
pixel_size, ttcname.ttf_name[ttc_index]); pixel_size, ttcname.ttf_name[ttc_index]);
@ -1060,7 +1061,7 @@ void getopts(int *pac, char ***pav)
start_char = 0; start_char = 0;
while (ac > 0 && av[0][0] == '-') { while (ac > 0 && av[0][0] == '-') {
p = &av[0][1]; p = &av[0][1];
while( *p) while( *p)
switch(*p++) { switch(*p++) {
case 'h':case 'H': case 'h':case 'H':
@ -1278,13 +1279,13 @@ int main(int ac, char **av)
getopts(&ac, &av); /* read command line options*/ getopts(&ac, &av); /* read command line options*/
if (ac < 1) if (ac < 1)
{ {
usage(); usage();
} }
if (oflag) if (oflag)
{ {
if (ac > 1) if (ac > 1)
{ {
usage(); usage();
} }
@ -1296,14 +1297,14 @@ int main(int ac, char **av)
exit(0); exit(0);
} }
while (pct && ac > 0) while (pct && ac > 0)
{ {
print_ttc_table(av[0]); print_ttc_table(av[0]);
++av; --ac; ++av; --ac;
exit(0); exit(0);
} }
while (ac > 0) while (ac > 0)
{ {
convttc(av[0]); convttc(av[0]);
++av; --ac; ++av; --ac;
@ -1330,7 +1331,7 @@ typedef struct {
static node_t *nodes; static node_t *nodes;
static unsigned long nodes_used = 0; static unsigned long nodes_used = 0;
int int
otf2bdf_remap(unsigned short *code) otf2bdf_remap(unsigned short *code)
{ {
unsigned long i, n, t; unsigned long i, n, t;