74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/* This file is part of libravatarserv.
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* Copyright © 2022 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program 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. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "image.hpp"
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#include "types.hpp"
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#include <identiconpp.hpp>
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#include <Magick++/Blob.h>
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#include <Magick++/Image.h>
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#include <algorithm>
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#include <cstdint>
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#include <ios>
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#include <iostream>
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namespace libravatarserv::image {
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void write(Magick::Image &img) {
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string magick{img.magick()};
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std::transform(magick.begin(), magick.end(), magick.begin(), ::tolower);
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Magick::Blob buffer;
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img.write(&buffer);
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std::cout << "Content-Type: image/" << magick << '\n';
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std::cout << "Content-Length: " << buffer.length() << "\n\n";
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std::cout.write(static_cast<const char *>(buffer.data()),
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static_cast<std::streamsize>(buffer.length()));
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}
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Magick::Image generate_identicon(const request_t &req) {
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const auto padwidth{[&req]() -> std::uint8_t {
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if (req.size < 60) {
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return 0;
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}
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return static_cast<std::uint8_t>(std::max(req.size / 10, 10));
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}()};
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Identiconpp identicon(5, 5, Identiconpp::algorithm::sigil, "fefefeff",
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{
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// The same colors ivatar uses.
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"2d4fffff", // Blue
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"feb42cff", // Yellow
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"e279eaff", // Bright pink
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"1eb3fdff", // Cyan
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"E84D41ff", // Red
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"31CB73ff", // Green
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"8D45AAff" // Dark pink
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},
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{padwidth, padwidth});
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Magick::Image img{
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identicon.generate(req.hash, static_cast<std::uint8_t>(req.size))};
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img.magick("PNG");
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return img;
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}
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} // namespace libravatarserv::image
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