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Clarify / clean up some comments

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This commit is contained in:
Stefan Haustein 2024-01-24 19:49:07 +01:00
parent 71d1a80d14
commit 1154264c54
1 changed files with 7 additions and 21 deletions
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28
src/tiv.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2023 Aaron Liu
* Copyright (c) 2017-2023, Stefan Haustein, Aaron Liu
*
* This file is free software: you may copy, redistribute and/or modify it
* under the terms of the GNU General Public License as published by the
@ -14,22 +14,8 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright (c) 2017—2021, Stefan Haustein
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* This file used to be licensed under the Apache license. Older version
* under this license are available via the git history of this repository.
*/
#include <array>
@ -71,9 +57,6 @@
#define EX_CONFIG 78 /* configuration error */
#endif
// using namespace std; // haha nope, bad style
// especially when we're also using the CImg namespace
// Implementation of flag representation for flags in the main() method
constexpr int FLAG_FG = 1;
constexpr int FLAG_BG = 2;
@ -82,15 +65,18 @@ constexpr int FLAG_24BIT = 8; // 24-bit color mode
constexpr int FLAG_NOOPT = 16; // Only use the same half-block character
constexpr int FLAG_TELETEXT = 32; // Use teletext characters
// Steps (@TODO: Figure out what exactly they represent)
// Color saturation value steps from 0 to 255
constexpr int COLOR_STEP_COUNT = 6;
constexpr int COLOR_STEPS[COLOR_STEP_COUNT] = {0, 0x5f, 0x87, 0xaf, 0xd7, 0xff};
// Grayscale saturation value steps from 0 to 255
constexpr int GRAYSCALE_STEP_COUNT = 24;
constexpr int GRAYSCALE_STEPS[GRAYSCALE_STEP_COUNT] = {
0x08, 0x12, 0x1c, 0x26, 0x30, 0x3a, 0x44, 0x4e, 0x58, 0x62, 0x6c, 0x76,
0x80, 0x8a, 0x94, 0x9e, 0xa8, 0xb2, 0xbc, 0xc6, 0xd0, 0xda, 0xe4, 0xee};
// An interleaved map of 4x8 bit character bitmaps (each hex digit represents a row)
// to the corresponding unicode character code point.
constexpr unsigned int BITMAPS[] = {
0x00000000, 0x00a0,