100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
#pragma once
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/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2019 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee 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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* RawTherapee 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 RawTherapee. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <cstdint>
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#include <cstring>
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#include <vector>
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#include "noncopyable.h"
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namespace rtengine
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{
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struct badPix {
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uint16_t x;
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uint16_t y;
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badPix(uint16_t xc, uint16_t yc): x(xc), y(yc) {}
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};
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class PixelsMap :
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public NonCopyable
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{
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int w; // line width in base_t units
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int h; // height
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typedef unsigned long base_t;
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static constexpr size_t base_t_size = sizeof(base_t);
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base_t *pm;
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public:
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PixelsMap(int width, int height)
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: w((width / (base_t_size * 8)) + 1), h(height), pm(new base_t[h * w])
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{
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clear();
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}
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~PixelsMap()
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{
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delete [] pm;
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}
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int width() const
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{
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return w;
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}
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int height() const
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{
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return h;
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}
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// if a pixel is set returns true
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bool get(int x, int y) const
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{
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return (pm[y * w + x / (base_t_size * 8)] & (base_t)1 << (x % (base_t_size * 8))) != 0;
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}
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// set a pixel
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void set(int x, int y)
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{
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pm[y * w + x / (base_t_size * 8)] |= (base_t)1 << (x % (base_t_size * 8)) ;
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}
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// set pixels from a list
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int set(const std::vector<badPix>& bp)
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{
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for (const auto& bad_pix : bp) {
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set(bad_pix.x, bad_pix.y);
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}
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return bp.size();
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}
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void clear()
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{
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std::memset(pm, 0, h * w * base_t_size);
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}
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// return 0 if at least one pixel in the word(base_t) is set, otherwise return the number of pixels to skip to the next word base_t
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int skipIfZero(int x, int y) const
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{
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return pm[y * w + x / (base_t_size * 8)] == 0 ? base_t_size * 8 - x % (base_t_size * 8) : 0;
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}
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};
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}
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