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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/ffwrapper.c
Initial commit
Diffstat (limited to 'dviware/dvisvgm/src/ffwrapper.c')
-rw-r--r--dviware/dvisvgm/src/ffwrapper.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/ffwrapper.c b/dviware/dvisvgm/src/ffwrapper.c
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+++ b/dviware/dvisvgm/src/ffwrapper.c
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+/*************************************************************************
+** ffwrapper.c **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2019 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** 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 3 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. **
+** **
+** You should have received a copy of the GNU General Public License **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#include <fontforge.h>
+#include "ffwrapper.h"
+
+#ifdef _NDEBUG
+static void no_post_error (const char *title, const char *error, ...) {}
+static void no_warning (const char *format, ...) {}
+#endif
+
+
+/** Initializes the FontForge library. */
+void ff_init () {
+ InitSimpleStuff();
+#ifdef _NDEBUG
+ ui_interface.post_error = &no_post_error;
+ ui_interface.logwarning = &no_warning;
+#endif
+}
+
+
+int ff_version () {
+ return FONTFORGE_VERSIONDATE_RAW;
+}
+
+
+/** Runs the autohinter for all glyphs in a given font.
+ * @param[in,out] sf the font to be autohinted
+ * @param[in] order2 if != 0, target font requires quadratic rather than cubic splines */
+static void ff_autohint (SplineFont *sf, int order2) {
+ BlueData bd;
+ GlobalInstrCt gic;
+ if (order2)
+ SFConvertToOrder2(sf);
+ QuickBlues(sf, ly_fore, &bd);
+ if (order2)
+ InitGlobalInstrCt(&gic, sf, ly_fore, &bd);
+ for (int i=0; i < sf->glyphcnt; i++) {
+ SplineChar *sc = sf->glyphs[i];
+ if (sc != NULL) {
+ SplineChar *sc = sf->glyphs[i];
+ SplineCharAutoHint(sc, ly_fore, &bd); // generate hints
+ if (order2)
+ NowakowskiSCAutoInstr(&gic, sc); // generate TTF instructions
+ }
+ }
+ if (order2)
+ FreeGlobalInstrCt(&gic);
+}
+
+
+/** Creates a TrueType font from a FontForge SFD file.
+ * @param[in] sfdname name of SFD file
+ * @param[in] ttfname name of TrueType file
+ * @param[in] autohint run the autohinter if != 0 */
+int ff_sfd_to_ttf (const char *sfdname, const char *ttfname, int autohint) {
+ int ret=0;
+ SplineFont *sf = SFDRead((char*)sfdname);
+ if (sf) {
+ if (autohint)
+ ff_autohint(sf, true);
+ ret = WriteTTFFont((char*)ttfname, sf, ff_ttf, 0, 0, 0, sf->map, ly_fore);
+ SplineFontFree(sf);
+ }
+ return ret;
+}