💿🐜 Antkeeper source code
https://antkeeper.com
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95 lines
1.7 KiB
95 lines
1.7 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code 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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code 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 Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "image.hpp"
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image::image():
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hdr(false),
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width(0),
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height(0),
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channels(4),
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pixels(nullptr),
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size(0)
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{}
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image::~image()
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{
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free_pixels();
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}
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void image::format(unsigned int channels, bool hdr)
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{
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if (this->channels == channels && this->hdr == hdr)
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{
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return;
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}
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free_pixels();
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this->channels = channels;
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this->hdr = hdr;
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allocate_pixels();
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}
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void image::resize(unsigned int width, unsigned int height)
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{
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if (this->width == width && this->height == height)
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{
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return;
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}
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free_pixels();
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this->width = width;
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this->height = height;
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allocate_pixels();
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}
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void image::allocate_pixels()
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{
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size = width * height * channels;
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if (size != 0)
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{
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if (hdr)
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{
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pixels = new float[size];
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}
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else
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{
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pixels = new unsigned char[size];
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}
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}
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}
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void image::free_pixels()
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{
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if (pixels != nullptr)
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{
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if (hdr)
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{
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delete[] reinterpret_cast<float*>(pixels);
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}
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else
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{
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delete[] reinterpret_cast<unsigned char*>(pixels);
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}
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pixels = nullptr;
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size = 0;
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}
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}
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