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/* main.cc -- driver for mmafm program
*
* Copyright (c) 1997-2006 Eddie Kohler
*
* 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 the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. This program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <efont/findmet.hh>
#include <efont/psres.hh>
#include <lcdf/slurper.hh>
#include <efont/afm.hh>
#include <efont/afmw.hh>
#include <efont/amfm.hh>
#include <lcdf/error.hh>
#include <lcdf/clp.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <math.h>
#ifdef HAVE_CTIME
# include <time.h>
#endif
#define WEIGHT_OPT 300
#define WIDTH_OPT 301
#define OPSIZE_OPT 302
#define STYLE_OPT 303
#define N1_OPT 304
#define N2_OPT 305
#define N3_OPT 306
#define N4_OPT 307
#define VERSION_OPT 308
#define HELP_OPT 309
#define OUTPUT_OPT 310
#define PRECISION_OPT 311
#define KERN_PREC_OPT 312
Clp_Option options[] = {
{ "1", '1', N1_OPT, Clp_ArgDouble, 0 },
{ "2", '2', N2_OPT, Clp_ArgDouble, 0 },
{ "3", '3', N3_OPT, Clp_ArgDouble, 0 },
{ "4", '4', N4_OPT, Clp_ArgDouble, 0 },
{ "weight", 'w', WEIGHT_OPT, Clp_ArgDouble, 0 },
{ "width", 'W', WIDTH_OPT, Clp_ArgDouble, 0 },
{ "optical-size", 'O', OPSIZE_OPT, Clp_ArgDouble, 0 },
{ "style", 0, STYLE_OPT, Clp_ArgDouble, 0 },
{ "wt", 0, WEIGHT_OPT, Clp_ArgDouble, 0 },
{ "wd", 0, WIDTH_OPT, Clp_ArgDouble, 0 },
{ "min-kern", 'k', KERN_PREC_OPT, Clp_ArgDouble, 0 },
{ "minimum-kern", 'k', KERN_PREC_OPT, Clp_ArgDouble, 0 },
{ "kern-precision", 'k', KERN_PREC_OPT, Clp_ArgDouble, 0 },
{ "output", 'o', OUTPUT_OPT, Clp_ArgString, 0 },
{ "precision", 'p', PRECISION_OPT, Clp_ArgInt, 0 },
{ "version", 'v', VERSION_OPT, 0, 0 },
{ "help", 'h', HELP_OPT, 0, 0 },
};
using namespace Efont;
static const char *program_name;
static ErrorHandler *errh;
static AmfmMetrics *amfm;
static Vector<PermString> ax_names;
static Vector<int> ax_nums;
static Vector<double> values;
static void
set_design(PermString a, double v)
{
ax_names.push_back(a);
ax_nums.push_back(-1);
values.push_back(v);
}
static void
set_design(int a, double v)
{
ax_names.push_back(PermString());
ax_nums.push_back(a);
values.push_back(v);
}
static void
set_amfm(AmfmMetrics *a)
{
if (a) {
if (amfm) errh->fatal("already read one AMFM file");
amfm = a;
}
}
// apply precision
static inline void
pround(double &v, double multiplier, double divider)
{
if (KNOWN(v))
v = floor(v * multiplier + 0.5) * divider;
}
static void
apply_precision(Metrics *m, int precision)
{
if (precision < 0)
return;
double multiplier = 1, divider = 1;
for (int i = 0; i < precision; i++)
multiplier *= 10, divider /= 10;
for (int i = 0; i < m->nfd(); i++)
pround(m->fd(i), multiplier, divider);
for (int i = 0; i < m->nglyphs(); i++) {
pround(m->wd(i), multiplier, divider);
pround(m->lf(i), multiplier, divider);
pround(m->bt(i), multiplier, divider);
pround(m->rt(i), multiplier, divider);
pround(m->tp(i), multiplier, divider);
}
for (int i = 0; i < m->nkv(); i++)
pround(m->kv(i), multiplier, divider);
}
static void
apply_kern_precision(Metrics *m, double kern_precision)
{
if (kern_precision <= 0)
return;
for (int i = 0; i < m->nkv(); i++)
if (fabs(m->kv(i)) < kern_precision)
m->kv(i) = 0;
}
static void
read_file(const char *fn, MetricsFinder *finder)
{
Filename filename;
FILE *file;
if (strcmp(fn, "-") == 0) {
filename = Filename("<stdin>");
file = stdin;
} else {
filename = Filename(fn);
file = filename.open_read();
}
int save_errno = errno;
if (!file) {
// look for a font by name
AmfmMetrics *new_amfm = finder->find_amfm(fn, errh);
if (new_amfm) {
set_amfm(new_amfm);
return;
}
if (finder->find_metrics(fn, errh))
return;
// check for instance name. don't use InstanceMetricsFinder.
const char *underscore = strchr(fn, '_');
if (underscore)
new_amfm = finder->find_amfm(PermString(fn, underscore - fn), errh);
if (!new_amfm)
errh->fatal("%s: %s", fn, strerror(save_errno));
set_amfm(new_amfm);
int i = 0;
while (underscore[0] == '_' && underscore[1]) {
double x = strtod(underscore + 1, const_cast<char **>(&underscore));
set_design(i, x);
i++;
}
return;
}
Slurper slurper(filename, file);
bool is_afm = false;
if (file != stdin) {
char *first_line = slurper.peek_line();
if (first_line)
is_afm = strncmp(first_line, "StartFontMetrics", 16) == 0;
}
if (is_afm) {
Metrics *afm = AfmReader::read(slurper, errh);
if (afm)
finder->record(afm);
} else
set_amfm(AmfmReader::read(slurper, finder, errh));
}
static void
usage_error(const char *error_message, ...)
{
va_list val;
va_start(val, error_message);
if (!error_message)
errh->message("Usage: %s [OPTION | FONT]...", program_name);
else
errh->verror(ErrorHandler::ERR_ERROR, String(), error_message, val);
errh->message("Type %s --help for more information.", program_name);
exit(1);
}
static void
usage()
{
printf("\
'Mmafm' creates an AFM font metrics file for a multiple master font by\n\
interpolating at a point you specify and writes it to the standard output.\n\
\n\
Usage: %s [OPTION | FONT]...\n\
\n\
Each FONT is either an AFM or AMFM file name, or the font name of a multiple\n\
master font. In the second case, mmafm will find the actual AMFM file using\n\
the PSRESOURCEPATH environment variable.\n\
\n\
General options:\n\
-o, --output=FILE Write output to FILE.\n\
-h, --help Print this message and exit.\n\
-v, --version Print version number and warranty and exit.\n\
\n\
Interpolation settings:\n\
-w, --weight=N Set weight to N.\n\
-W, --width=N Set width to N.\n\
-O, --optical-size=N Set optical size to N.\n\
--style=N Set style axis to N.\n\
--1=N, --2=N, --3=N, --4=N Set first (second, third, fourth) axis to N.\n\
-p, --precision=N Allow N digits of fraction (default 3).\n\
-k, --min-kern=N Remove kerns smaller than N (default 2).\n\
\n\
Report bugs to <kohler@cs.ucla.edu>.\n", program_name);
}
int
main(int argc, char *argv[])
{
MetricsFinder *finder = new CacheMetricsFinder;
PsresDatabase *psres = new PsresDatabase;
psres->add_psres_path(getenv("PSRESOURCEPATH"), 0, false);
PsresMetricsFinder *psres_finder = new PsresMetricsFinder(psres);
finder->add_finder(psres_finder);
Clp_Parser *clp =
Clp_NewParser(argc, (const char * const *)argv, sizeof(options) / sizeof(options[0]), options);
program_name = Clp_ProgramName(clp);
errh = ErrorHandler::static_initialize(new FileErrorHandler(stderr, String(program_name) + ": "));
FILE *output_file = 0;
int precision = 3;
double kern_precision = 2.0;
while (1) {
int opt = Clp_Next(clp);
switch (opt) {
case WEIGHT_OPT:
set_design("Weight", clp->val.d);
break;
case WIDTH_OPT:
set_design("Width", clp->val.d);
break;
case OPSIZE_OPT:
set_design("OpticalSize", clp->val.d);
break;
case STYLE_OPT:
set_design("Style", clp->val.d);
break;
case N1_OPT:
case N2_OPT:
case N3_OPT:
case N4_OPT:
set_design(opt - N1_OPT, clp->val.d);
break;
case PRECISION_OPT:
precision = clp->val.i;
break;
case KERN_PREC_OPT:
kern_precision = clp->val.d;
break;
case OUTPUT_OPT:
if (output_file) errh->fatal("output file already specified");
if (strcmp(clp->arg, "-") == 0)
output_file = stdout;
else {
output_file = fopen(clp->arg, "wb");
if (!output_file)
errh->fatal("%s: %s", clp->arg, strerror(errno));
}
break;
case HELP_OPT:
usage();
exit(0);
break;
case VERSION_OPT:
printf("mmafm (LCDF typetools) %s\n", VERSION);
printf("Copyright (C) 1997-2006 Eddie Kohler\n\
This is free software; see the source for copying conditions.\n\
There is NO warranty, not even for merchantability or fitness for a\n\
particular purpose.\n");
exit(0);
break;
case Clp_NotOption:
read_file(clp->arg, finder);
break;
case Clp_Done:
goto done;
case Clp_BadOption:
usage_error(0);
break;
}
}
done:
if (!amfm) usage_error("missing font argument");
MultipleMasterSpace *mmspace = amfm->mmspace();
#if MMAFM_RUN_MMPFB
if (!mmspace->check_intermediate()) {
char *buf = new char[amfm->font_name().length() + 30];
sprintf(buf, "mmpfb -q --amcp-info '%s'", amfm->font_name().c_str());
FILE *f = popen(buf, "r");
if (f) {
Filename fake("<mmpfb output>");
Slurper slurpy(fake, f);
AmfmReader::add_amcp_file(slurpy, amfm, errh);
pclose(f);
}
delete[] buf;
}
#endif
Vector<double> design = mmspace->default_design_vector();
for (int i = 0; i < values.size(); i++)
if (ax_names[i])
mmspace->set_design(design, ax_names[i], values[i], errh);
else
mmspace->set_design(design, ax_nums[i], values[i], errh);
Vector<double> weight;
if (!mmspace->design_to_weight(design, weight, errh)) {
if (!mmspace->check_intermediate()) {
errh->message("(I can't interpolate font programs with intermediate masters on my own.");
#if MMAFM_RUN_MMPFB
errh->message("I tried to run `mmpfb --amcp-info %s', but it didn't work.", amfm->font_name().c_str());
errh->message("Maybe your PSRESOURCEPATH environment variable is not set?");
#endif
errh->fatal("See the manual page for more information.)");
} else
errh->fatal("can't create weight vector");
}
// Need to check for case when all design coordinates are unspecified. The
// AMFM file contains a default WeightVector, but often NOT a default
// DesignVector; we don't want to generate a file with a FontName like
// `MyriadMM_-9.79797979e97_-9.79797979e97_' because the DesignVector
// components are unknown.
if (!KNOWN(design[0]))
errh->fatal("must specify %s's %s coordinate", amfm->font_name().c_str(),
mmspace->axis_type(0).c_str());
Metrics *m = amfm->interpolate(design, weight, errh);
if (m) {
// Add a comment identifying this as interpolated by mmafm
if (MetricsXt *xt = m->find_xt("AFM")) {
AfmMetricsXt *afm_xt = (AfmMetricsXt *)xt;
#if HAVE_CTIME
time_t cur_time = time(0);
char *time_str = ctime(&cur_time);
int time_len = strlen(time_str) - 1;
char *buf = new char[strlen(VERSION) + time_len + 100];
sprintf(buf, "Interpolated by mmafm-%s on %.*s.", VERSION,
time_len, time_str);
#else
char *buf = new char[strlen(VERSION) + 100];
sprintf(buf, "Interpolated by mmafm-%s.", VERSION);
#endif
afm_xt->opening_comments.push_back(buf);
afm_xt->opening_comments.push_back("Mmafm is free software. See <http://www.lcdf.org/type/>.");
delete[] buf;
}
// round numbers if necessary
if (precision >= 0)
apply_precision(m, precision);
if (kern_precision > 0)
apply_kern_precision(m, kern_precision);
// write the output file
if (!output_file)
output_file = stdout;
AfmWriter::write(m, output_file);
return 0;
} else
return 1;
}
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