69 lines
2.9 KiB
C
69 lines
2.9 KiB
C
/* *****************************************************************************
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* libg1m/format/fkey.h -- the G1M function keys file format description.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libg1m.
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* libg1m is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libg1m is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libg1m; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************** */
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#ifndef LIBG1M_FORMAT_FKEY_H
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# define LIBG1M_FORMAT_FKEY_H
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# include <libg1m.h>
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# pragma pack(1)
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/* Function keys are the little boxes at the bottom with text in it, to tell
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* you what you're going to access if you press F1-F6. */
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/* ************************************************************************** */
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/* G1N - Function-keys files for fx calculators */
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/* ************************************************************************** */
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/* In G1Ns, function keys are 19x8 1-bit with fill bits images.
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*
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* TODO: it is unknown yet how to identify G1N files, as no non-community-made
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* one of them was found and the calculator software just skips
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* StandardHeader. It has to be found for a correct integration in libg1m!
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*
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* The format looks a lot like G1L files. The header is the following: */
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# define FKEY_WIDTH 24
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# define FKEY_HEIGHT 8
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struct g1n_subheader {
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/* usually "PowerUSB" */
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uint8_t identifier[8];
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/* useless data */
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uint8_t _useless[4];
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/* number of icons */
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uint16_t fkey_count;
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};
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/* Then there is a table of 16-bits offsets (iconXXX - icon0), then the icons.
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* The first "icon" is in fact the name of the language. */
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/* ************************************************************************** */
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/* G3L-N - Function-keys files for CG calculators */
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/* ************************************************************************** */
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/* G3L-N have exactly the same header and subheader as G3Ls, except
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* the magic field is "0201" and not "0401" like for "normal" G3Ls.
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*
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* TODO: it is unknown yet how to identify G3N files using the StandardHeader,
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* as no non-community-made one of them was found and the calculator software
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* just skips StandardHeader. It has to be found for a correct integration
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* in libg1m!
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*
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* In G3L-Ns, function keys are 64x24 1-bit images. */
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# define FKEY3_WIDTH 64
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# define FKEY3_HEIGHT 24
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# pragma pack()
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#endif /* LIBG1M_FORMAT_FKEY_H */
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