identiconpp/src/c_interface.cpp

98 lines
2.6 KiB
C++

/* This file is part of identiconpp.
* Copyright © 2019 tastytea <tastytea@tastytea.de>
*
* 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, version 3.
*
* 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/>.
*/
#include <vector>
#include <memory>
#include <exception>
#include <Magick++/Image.h>
#include <Magick++/Blob.h>
#include "identiconpp.hpp"
#include "debug.hpp"
#include "identiconpp_c.h"
static std::unique_ptr<Identiconpp> identicon;
static string base64;
bool identiconpp_setup(const uint8_t columns, const uint8_t rows,
identiconpp_algorithm type,
const char background[9],
const char foreground[][9],
const uint8_t foreground_len,
const uint8_t padding[2])
{
Identiconpp::algorithm algo;
switch (type)
{
case identiconpp_ltr_symmetric:
{
algo = Identiconpp::algorithm::ltr_symmetric;
break;
}
case identiconpp_ltr_asymmetric:
{
algo = Identiconpp::algorithm::ltr_asymmetric;
break;
}
case identiconpp_sigil:
{
algo = Identiconpp::algorithm::sigil;
break;
}
}
std::vector<string> vforeground;
for (uint8_t i = 0; i < foreground_len; ++i)
{
vforeground.push_back(foreground[i]);
}
try
{
identicon = std::make_unique<Identiconpp>(
Identiconpp(columns, rows, algo, background, vforeground,
{ padding[0], padding[1] }));
}
catch (const std::exception &e)
{
return false;
}
return true;
}
uint64_t identiconpp_generate(const char magick[],
const char digest[], const uint16_t width)
{
try
{
Magick::Image img = identicon->generate(digest, width);
Magick::Blob blob;
img.magick(magick);
img.write(&blob);
base64 = blob.base64();
return blob.base64().length();
}
catch (const std::exception &e)
{
return 0;
}
}
const char *identiconpp_base64()
{
return base64.c_str();
}