/* * Copyright 2025 Henri Verbeet * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ /* The glyph data is derived from etl16-unicode.bdf as found on * ftp://ftp.ring.gr.jp/pub/X/opengroup/contrib/fonts/etl-unicode.tar.gz * with the following license: * * Public domain font. Share and enjoy. */ /* Each line in etl16_unicode[] below contains the bitmap data for a single * 8x16 glyph, starting at ASCII 0x20 (space). Each byte corresponds to a * single line in the glyph. * * The BDF bitmap data is essentially the same format we're using here, so we * could have extracted the glyphs manually, or perhaps using a small script. * However, bdf2psf can do most of the work for us, by creating a PSF1 font * from the BDF. * * A PSF1 font has a 4 byte header, followed by at least 256 glyphs. * For a 8x16 font, each glyph consists of 16 bytes, one byte for each row. * * We're not interested in control characters or extended ASCII, so we skip * the first 0x4 (header) + 0x20 (control characters) * 0x10 = 516 bytes, and * extract the next (0x80 - 0x20) * 0x10 = 1536 bytes: * * bdf2psf etl16-unicode.bdf standard.equivalents ascii.set 256 /dev/stdout | xxd -i -c 16 -s 516 -l 1536 * * and we're done. */ static const uint8_t etl16_unicode[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x08, 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