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-rw-r--r--scripts/gen-mplus-patch.sh203
1 files changed, 203 insertions, 0 deletions
diff --git a/scripts/gen-mplus-patch.sh b/scripts/gen-mplus-patch.sh
new file mode 100644
index 0000000..af7634f
--- /dev/null
+++ b/scripts/gen-mplus-patch.sh
@@ -0,0 +1,203 @@
+#!/bin/sh
+#
+# Generate a patch to add M+ fbcon fonts to Linux(-libre)
+#
+# Copyright (C) 2019 Patrick McDermott
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+set -eu
+
+VARIANTS='
+ 1m regular 16 22
+ 1m bold 16 22
+ 1mn regular 16 22
+ 1mn bold 16 22
+ '
+LF='
+'
+
+backup_orig()
+{
+ local f=
+
+ for f in include/linux/font.h lib/fonts/Kconfig lib/fonts/Makefile \
+ lib/fonts/fonts.c; do
+ if ! [ -e "tmp/src/${f}.orig" ]; then
+ mv "tmp/src/${f}" "tmp/src/${f}.orig"
+ fi
+ done
+}
+
+edit_font_h()
+{
+ local state=
+ local i=
+ local line=
+ local ft=
+
+ exec 3>'tmp/src/include/linux/font.h'
+ state='want_defs'
+ i=0
+ while IFS='' read -r line; do
+ if [ x"${state}" = x'want_defs' ] || [ x"${state}" = x'defs' ]
+ then
+ case "${line}" in '#define '*'_IDX'*)
+ state='defs'
+ printf '%s\n' "${line}" 1>&3
+ : $((i += 1))
+ continue
+ esac
+ fi
+ if [ x"${state}" = x'defs' ]; then # End of defines
+ while read fc wt wd ht; do
+ [ -z "${fc}" ] && continue
+ ft="MPLUS_$(printf '%s_%s' "${fc}" "${wt}" | \
+ tr '[a-z]' '[A-Z]')_${wd}x${ht}_IDX"
+ printf '#define %s\t%d\n' "${ft}" ${i} 1>&3
+ : $((i += 1))
+ done <<-EOF
+ ${VARIANTS}
+ EOF
+ state='want_decls'
+ fi
+ if [ x"${state}" = x'want_decls' ]; then
+ case "${line}" in *'struct font_desc'*)
+ state='decls'
+ esac
+ fi
+ if [ x"${state}" = x'decls' ]; then
+ case "${line}" in *';')
+ printf '%s\n' "${line%;}" 1>&3
+ while read fc wt wd ht; do
+ [ -z "${fc}" ] && continue
+ printf ',\t\t\tfont_mplus_%s_%s'"$(: \
+ )"'_%dx%d' "${fc}" "${wt}" \
+ "${wd}" "${ht}" 1>&3
+ done <<-EOF
+ ${VARIANTS}
+ EOF
+ printf ';\n' 1>&3
+ state='end'
+ continue
+ esac
+ printf '%s\n' "${line}" 1>&3
+ fi
+ printf '%s\n' "${line}" 1>&3
+ done 0<'tmp/src/include/linux/font.h.orig'
+
+ if ! [ x"${state}" = x'end' ]; then
+ printf 'Error editing include/linux/font.h\n' 1>&2
+ return 1
+ fi
+
+ return 0
+}
+
+edit_kconfig()
+{
+}
+
+edit_makefile()
+{
+}
+
+edit_fonts_c()
+{
+}
+
+
+gen_headers()
+{
+ local mplus_dir="${1}"
+ shift 1
+ local mplus_ver=
+
+ mplus_ver="$(tr '\0' '\n' <"${mplus_dir}/mplus-1m-regular.ttf" | \
+ sed -n 's/^Version 1.//p')"
+ cat <<-EOF
+ Author: Patrick McDermott <patrick.mcdermott@libiquity.com>
+ Subject: Add M+ fonts
+
+ Generated from M+ version ${mplus_ver} by ${0}
+ EOF
+ return 0
+}
+
+gen_diff()
+{
+ local headers="${1}"
+ shift 1
+ local files=
+ local fc=
+ local wt=
+ local wd=
+ local ht=
+ local f=
+ local diff=
+ local a=
+ local b=
+
+ files="include/linux/font.h${LF}lib/fonts/Kconfig${LF}"
+ files="${files}lib/fonts/Makefile${LF}"
+ while read fc wt wd ht; do
+ [ -z "${fc}" ] && continue
+ f="lib/fonts/font_mplus_${fc}_${wt}_${wd}x${ht}.c"
+ files="${files}${f}${LF}"
+ done <<-EOF
+ ${VARIANTS}
+ EOF
+ files="${files}lib/fonts/fonts.c${LF}"
+
+ diff=''
+ for f in ${files}; do
+ a="tmp/src/${f}"
+ b="tmp/src/${f}.orig"
+ case "${f}" in lib/fonts/font_*.c) a='/dev/null';; esac
+ diff="${diff}diff -Naurp a/${f} b/${f}${LF}"
+ diff="${diff}--- a/${f}${LF}"
+ diff="${diff}+++ a/${f}${LF}"
+ diff="${diff}$(diff -up "${a}" "${b}" | tail -n +3)${LF}"
+ done
+ diff="${headers}${LF}---${LF}$(printf '%s' "${diff}" | \
+ diffstat)${LF}${diff}"
+
+ return 0
+}
+
+main()
+{
+ local mplus_dir=
+ local bdf2fbcon=
+
+ if [ ${#} -ne 2 ]; then
+ printf 'Usage: %s <mplus-dir> <bdf2fbcon>\n' "${0}" 1>&2
+ return 1
+ fi
+ mplus_dir="${1}"
+ bdf2fbcon="${2}"
+ shift 2
+
+ conv_fonts "${mplus_dir}" "${bdf2fbcon}"
+ backup_orig
+ edit_font_h
+ edit_kconfig
+ edit_makefile
+ edit_fonts_c
+ gen_diff "$(gen_headers "${mplus_dir}")"
+
+ return 0
+}
+
+main "${@}"