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tools/sfnt2fnt: Separate the building of the font data and the actual file creation.

This commit is contained in:
Alexandre Julliard 2008-03-22 14:56:16 +01:00
parent 94dc49ed12
commit a145b3069f
1 changed files with 108 additions and 94 deletions
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202
tools/sfnt2fnt.c
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@ -51,6 +51,7 @@ typedef struct
WORD dfVersion;
DWORD dfSize;
char dfCopyright[60];
FONTINFO16 fi;
} FNT_HEADER;
typedef struct {
@ -107,8 +108,17 @@ static FT_Version_t FT_Version;
#include "poppack.h"
struct fontinfo
{
FNT_HEADER hdr;
CHAR_TABLE_ENTRY dfCharTable[258];
BYTE *data;
};
static const char *output_name;
static FT_Library ft_library;
static void usage(char **argv)
{
fprintf(stderr, "%s foo.ttf ppem enc dpi def_char avg_width\n", argv[0]);
@ -142,6 +152,11 @@ static void error(const char *s, ...)
exit(1);
}
static const char *get_face_name( const struct fontinfo *info )
{
return (const char *)info->data + info->hdr.fi.dfFace - info->hdr.fi.dfBitsOffset;
}
static int lookup_charset(int enc)
{
/* FIXME: make winelib app and use TranslateCharsetInfo */
@ -234,14 +249,13 @@ static FT_Error load_sfnt_table(FT_Face ft_face, FT_ULong table, FT_Long offset,
return err;
}
static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned char def_char, int avg_width)
static struct fontinfo *fill_fontinfo( const char *face_name, int ppem, int enc, int dpi,
unsigned char def_char, int avg_width )
{
int ascent = 0, il, el, ppem, descent = 0, width_bytes = 0, space_size, max_width = 0;
FNT_HEADER hdr;
FONTINFO16 fi;
FT_Face face;
int ascent = 0, il, el, descent = 0, width_bytes = 0, space_size, max_width = 0;
BYTE left_byte, right_byte, byte;
DWORD start;
CHAR_TABLE_ENTRY *dfCharTable;
int i, x, y, x_off, x_end, first_char;
FT_UInt gi;
int num_names;
@ -252,6 +266,11 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
eblcHeader_t *eblc;
bitmapSizeTable_t *size_table;
int num_sizes;
struct fontinfo *info;
size_t data_pos;
if (FT_New_Face(ft_library, face_name, 0, &face)) error( "Cannot open face %s\n", face_name );
if (FT_Set_Pixel_Sizes(face, ppem, ppem)) error( "cannot set face size to %u\n", ppem );
cptable = wine_cp_get_table(enc);
if(!cptable)
@ -264,7 +283,7 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
error("Can't find codepage 1252\n");
}
ppem = face->size->metrics.y_ppem;
assert( face->size->metrics.y_ppem == ppem );
needed = 0;
if (load_sfnt_table(face, TTAG_EBLC, 0, NULL, &needed))
@ -303,7 +322,7 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
descent = ppem - ascent;
}
start = sizeof(FNT_HEADER) + sizeof(FONTINFO16);
start = sizeof(FNT_HEADER);
if(FT_Load_Char(face, 'M', FT_LOAD_DEFAULT))
error("Can't find M\n");
@ -323,22 +342,20 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
first_char = 32; /* FT_Get_Next_Char for some reason returns too high
number in this case */
dfCharTable = malloc((255 + 3) * sizeof(*dfCharTable));
memset(dfCharTable, 0, (255 + 3) * sizeof(*dfCharTable));
info = calloc( 1, sizeof(*info) );
memset(&fi, 0, sizeof(fi));
fi.dfFirstChar = first_char;
fi.dfLastChar = 0xff;
start += ((unsigned char)fi.dfLastChar - (unsigned char)fi.dfFirstChar + 3 ) * sizeof(*dfCharTable);
info->hdr.fi.dfFirstChar = first_char;
info->hdr.fi.dfLastChar = 0xff;
start += ((unsigned char)info->hdr.fi.dfLastChar - (unsigned char)info->hdr.fi.dfFirstChar + 3 ) * sizeof(*info->dfCharTable);
num_names = FT_Get_Sfnt_Name_Count(face);
for(i = 0; i <num_names; i++) {
FT_Get_Sfnt_Name(face, i, &sfntname);
if(sfntname.platform_id == 1 && sfntname.encoding_id == 0 &&
sfntname.language_id == 0 && sfntname.name_id == 0) {
size_t len = min( sfntname.string_len, sizeof(hdr.dfCopyright)-1 );
memcpy(hdr.dfCopyright, sfntname.string, len);
hdr.dfCopyright[len] = 0;
size_t len = min( sfntname.string_len, sizeof(info->hdr.dfCopyright)-1 );
memcpy(info->hdr.dfCopyright, sfntname.string, len);
info->hdr.dfCopyright[len] = 0;
}
}
@ -347,104 +364,104 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
int c = get_char(cptable, enc, i);
gi = FT_Get_Char_Index(face, c);
if(gi == 0)
fprintf(stderr, "Missing glyph for char %04x\n", cptable->sbcs.cp2uni[i]);
fprintf(stderr, "warning: %s %u: missing glyph for char %04x\n",
face->family_name, ppem, cptable->sbcs.cp2uni[i]);
if(FT_Load_Char(face, c, FT_LOAD_DEFAULT)) {
fprintf(stderr, "error loading char %d - bad news!\n", i);
continue;
}
dfCharTable[i].width = face->glyph->metrics.horiAdvance >> 6;
dfCharTable[i].offset = start + (width_bytes * ppem);
info->dfCharTable[i].width = face->glyph->metrics.horiAdvance >> 6;
info->dfCharTable[i].offset = start + (width_bytes * ppem);
width_bytes += ((face->glyph->metrics.horiAdvance >> 6) + 7) >> 3;
if(max_width < (face->glyph->metrics.horiAdvance >> 6))
max_width = face->glyph->metrics.horiAdvance >> 6;
}
/* space */
space_size = (ppem + 3) / 4;
dfCharTable[i].width = space_size;
dfCharTable[i].offset = start + (width_bytes * ppem);
info->dfCharTable[i].width = space_size;
info->dfCharTable[i].offset = start + (width_bytes * ppem);
width_bytes += (space_size + 7) >> 3;
/* sentinel */
dfCharTable[++i].width = 0;
dfCharTable[i].offset = start + (width_bytes * ppem);
info->dfCharTable[++i].width = 0;
info->dfCharTable[i].offset = start + (width_bytes * ppem);
fi.dfType = 0;
fi.dfPoints = ((ppem - il) * 72 + dpi/2) / dpi;
fi.dfVertRes = dpi;
fi.dfHorizRes = dpi;
fi.dfAscent = ascent;
fi.dfInternalLeading = il;
fi.dfExternalLeading = el;
fi.dfItalic = (face->style_flags & FT_STYLE_FLAG_ITALIC) ? 1 : 0;
fi.dfUnderline = 0;
fi.dfStrikeOut = 0;
fi.dfWeight = os2->usWeightClass;
fi.dfCharSet = lookup_charset(enc);
fi.dfPixWidth = (face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) ?
avg_width : 0;
fi.dfPixHeight = ppem;
fi.dfPitchAndFamily = FT_IS_FIXED_WIDTH(face) ? 0 : TMPF_FIXED_PITCH;
info->hdr.fi.dfType = 0;
info->hdr.fi.dfPoints = ((ppem - il) * 72 + dpi/2) / dpi;
info->hdr.fi.dfVertRes = dpi;
info->hdr.fi.dfHorizRes = dpi;
info->hdr.fi.dfAscent = ascent;
info->hdr.fi.dfInternalLeading = il;
info->hdr.fi.dfExternalLeading = el;
info->hdr.fi.dfItalic = (face->style_flags & FT_STYLE_FLAG_ITALIC) ? 1 : 0;
info->hdr.fi.dfUnderline = 0;
info->hdr.fi.dfStrikeOut = 0;
info->hdr.fi.dfWeight = os2->usWeightClass;
info->hdr.fi.dfCharSet = lookup_charset(enc);
info->hdr.fi.dfPixWidth = (face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) ? avg_width : 0;
info->hdr.fi.dfPixHeight = ppem;
info->hdr.fi.dfPitchAndFamily = FT_IS_FIXED_WIDTH(face) ? 0 : TMPF_FIXED_PITCH;
switch(os2->panose[PAN_FAMILYTYPE_INDEX]) {
case PAN_FAMILY_SCRIPT:
fi.dfPitchAndFamily |= FF_SCRIPT;
info->hdr.fi.dfPitchAndFamily |= FF_SCRIPT;
break;
case PAN_FAMILY_DECORATIVE:
case PAN_FAMILY_PICTORIAL:
fi.dfPitchAndFamily |= FF_DECORATIVE;
info->hdr.fi.dfPitchAndFamily |= FF_DECORATIVE;
break;
case PAN_FAMILY_TEXT_DISPLAY:
if(fi.dfPitchAndFamily == 0) /* fixed */
fi.dfPitchAndFamily = FF_MODERN;
if(info->hdr.fi.dfPitchAndFamily == 0) /* fixed */
info->hdr.fi.dfPitchAndFamily = FF_MODERN;
else {
switch(os2->panose[PAN_SERIFSTYLE_INDEX]) {
case PAN_SERIF_NORMAL_SANS:
case PAN_SERIF_OBTUSE_SANS:
case PAN_SERIF_PERP_SANS:
fi.dfPitchAndFamily |= FF_SWISS;
info->hdr.fi.dfPitchAndFamily |= FF_SWISS;
break;
default:
fi.dfPitchAndFamily |= FF_ROMAN;
info->hdr.fi.dfPitchAndFamily |= FF_ROMAN;
}
}
break;
default:
fi.dfPitchAndFamily |= FF_DONTCARE;
info->hdr.fi.dfPitchAndFamily |= FF_DONTCARE;
}
fi.dfAvgWidth = avg_width;
fi.dfMaxWidth = max_width;
fi.dfDefaultChar = def_char - fi.dfFirstChar;
fi.dfBreakChar = ' ' - fi.dfFirstChar;
fi.dfWidthBytes = (width_bytes + 1) & ~1;
info->hdr.fi.dfAvgWidth = avg_width;
info->hdr.fi.dfMaxWidth = max_width;
info->hdr.fi.dfDefaultChar = def_char - info->hdr.fi.dfFirstChar;
info->hdr.fi.dfBreakChar = ' ' - info->hdr.fi.dfFirstChar;
info->hdr.fi.dfWidthBytes = (width_bytes + 1) & ~1;
fi.dfFace = start + fi.dfWidthBytes * ppem;
fi.dfBitsOffset = start;
fi.dfFlags = 0x10; /* DFF_1COLOR */
fi.dfFlags |= FT_IS_FIXED_WIDTH(face) ? 1 : 2; /* DFF_FIXED : DFF_PROPORTIONAL */
info->hdr.fi.dfFace = start + info->hdr.fi.dfWidthBytes * ppem;
info->hdr.fi.dfBitsOffset = start;
info->hdr.fi.dfFlags = 0x10; /* DFF_1COLOR */
info->hdr.fi.dfFlags |= FT_IS_FIXED_WIDTH(face) ? 1 : 2; /* DFF_FIXED : DFF_PROPORTIONAL */
hdr.dfVersion = 0x300;
hdr.dfSize = start + fi.dfWidthBytes * ppem + strlen(face->family_name) + 1;
fwrite(&hdr, sizeof(hdr), 1, fp);
fwrite(&fi, sizeof(fi), 1, fp);
fwrite(dfCharTable + fi.dfFirstChar, sizeof(*dfCharTable), ((unsigned char)fi.dfLastChar - (unsigned char)fi.dfFirstChar) + 3, fp);
info->hdr.dfVersion = 0x300;
info->hdr.dfSize = start + info->hdr.fi.dfWidthBytes * ppem + strlen(face->family_name) + 1;
info->data = calloc( info->hdr.dfSize - start, 1 );
data_pos = 0;
for(i = first_char; i < 0x100; i++) {
int c = get_char(cptable, enc, i);
if(FT_Load_Char(face, c, FT_LOAD_DEFAULT)) {
continue;
}
assert(dfCharTable[i].width == face->glyph->metrics.horiAdvance >> 6);
assert(info->dfCharTable[i].width == face->glyph->metrics.horiAdvance >> 6);
for(x = 0; x < ((dfCharTable[i].width + 7) / 8); x++) {
for(x = 0; x < ((info->dfCharTable[i].width + 7) / 8); x++) {
for(y = 0; y < ppem; y++) {
if(y < ascent - face->glyph->bitmap_top ||
y >= face->glyph->bitmap.rows + ascent - face->glyph->bitmap_top) {
fputc('\0', fp);
info->data[data_pos++] = 0;
continue;
}
x_off = face->glyph->bitmap_left / 8;
x_end = (face->glyph->bitmap_left + face->glyph->bitmap.width - 1) / 8;
if(x < x_off || x > x_end) {
fputc('\0', fp);
info->data[data_pos++] = 0;
continue;
}
if(x == x_off)
@ -460,36 +477,40 @@ static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned cha
byte = (left_byte << (8 - (face->glyph->bitmap_left & 7))) & 0xff;
byte |= ((right_byte >> (face->glyph->bitmap_left & 7)) & 0xff);
fputc(byte, fp);
info->data[data_pos++] = byte;
}
}
}
for(x = 0; x < (space_size + 7) / 8; x++) {
for(y = 0; y < ppem; y++)
fputc('\0', fp);
}
data_pos += ((space_size + 7) / 8) * ppem;
if (width_bytes & 1) data_pos += ppem;
if(width_bytes & 1) {
for(y = 0; y < ppem; y++)
fputc('\0', fp);
}
fprintf(fp, "%s", face->family_name);
fputc('\0', fp);
memcpy( info->data + data_pos, face->family_name, strlen( face->family_name ));
data_pos += strlen( face->family_name ) + 1;
assert( start + data_pos == info->hdr.dfSize );
FT_Done_Face( face );
return info;
}
static void write_fontinfo( const struct fontinfo *info, FILE *fp )
{
fwrite( &info->hdr, sizeof(info->hdr), 1, fp );
fwrite( info->dfCharTable + info->hdr.fi.dfFirstChar, sizeof(*info->dfCharTable),
((unsigned char)info->hdr.fi.dfLastChar - (unsigned char)info->hdr.fi.dfFirstChar) + 3, fp );
fwrite( info->data, info->hdr.dfSize - info->hdr.fi.dfBitsOffset, 1, fp );
}
int main(int argc, char **argv)
{
int ppem, enc;
FT_Face face;
FT_Library lib;
int dpi, avg_width;
unsigned int def_char;
FILE *fp;
char output[256];
char name[256];
char *cp;
struct fontinfo *info;
if(argc != 7) {
usage(argv);
exit(0);
@ -501,25 +522,15 @@ int main(int argc, char **argv)
def_char = atoi(argv[5]);
avg_width = atoi(argv[6]);
if(FT_Init_FreeType(&lib))
if(FT_Init_FreeType(&ft_library))
error("ft init failure\n");
FT_Version.major=FT_Version.minor=FT_Version.patch=-1;
FT_Library_Version(lib,&FT_Version.major,&FT_Version.minor,&FT_Version.patch);
FT_Library_Version(ft_library,&FT_Version.major,&FT_Version.minor,&FT_Version.patch);
if(FT_New_Face(lib, argv[1], 0, &face)) {
fprintf(stderr, "Can't open face\n");
usage(argv);
exit(1);
}
if (!(info = fill_fontinfo( argv[1], ppem, enc, dpi, def_char, avg_width ))) exit(1);
if(FT_Set_Pixel_Sizes(face, ppem, ppem)) {
fprintf(stderr, "Can't set size\n");
usage(argv);
exit(1);
}
strcpy(name, face->family_name);
strcpy(name, get_face_name(info));
/* FIXME: should add a -o option instead */
for(cp = name; *cp; cp++)
{
@ -536,10 +547,13 @@ int main(int argc, char **argv)
signal( SIGHUP, exit_on_signal );
#endif
fp = fopen(output, "w");
if (!(fp = fopen(output, "w")))
{
perror( output );
exit(1);
}
output_name = output;
fill_fontinfo(face, enc, fp, dpi, def_char, avg_width);
write_fontinfo( info, fp );
fclose(fp);
output_name = NULL;
exit(0);