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quicktex/quicktex/Texture.cpp

62 lines
2.3 KiB
C++

/* Python-rgbcx Texture Compression Library
Copyright (C) 2021 Andrew Cassidy <drewcassidy@me.com>
Partially derived from rgbcx.h written by Richard Geldreich <richgel99@gmail.com>
and licenced under the public domain
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Texture.h"
#include <stdexcept>
#include <type_traits>
#include "Color.h"
namespace quicktex {
RawTexture::RawTexture(int width, int height) : Base(width, height) { _pixels = new Color[(size_t)(_width * _height)]; }
RawTexture::RawTexture(RawTexture&& other) : Base(other._width, other._height) {
_pixels = other._pixels;
other._pixels = nullptr;
}
RawTexture::RawTexture(const RawTexture& other) : RawTexture(other._width, other._height) {
std::memcpy(_pixels, other._pixels, (size_t)(_width * _height) * sizeof(Color));
}
RawTexture& RawTexture::operator=(RawTexture other) noexcept {
swap(*this, other);
return *this;
}
void swap(RawTexture& first, RawTexture& second) noexcept {
using std::swap; // enable ADL
swap(first._pixels, second._pixels);
swap(first._width, second._width);
swap(first._height, second._height);
}
Color RawTexture::GetPixel(int x, int y) const {
if (x < 0 || x >= _width) throw std::invalid_argument("x value out of range.");
if (y < 0 || y >= _height) throw std::invalid_argument("y value out of range.");
return _pixels[x + (y * _width)];
}
void RawTexture::SetPixel(int x, int y, Color val) {
if (x < 0 || x >= _width) throw std::invalid_argument("x value out of range.");
if (y < 0 || y >= _height) throw std::invalid_argument("y value out of range.");
_pixels[x + (y * _width)] = val;
}
} // namespace quicktex