forked from Hartmut/paradiso
109 lines
No EOL
3.6 KiB
C++
109 lines
No EOL
3.6 KiB
C++
/*
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* Copyright 2023 Hartmut Seichter
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef PARADISO_BITMAP_HPP
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#define PARADISO_BITMAP_HPP
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#include <paradiso/geometry.hpp>
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#include <paradiso/globals.hpp>
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#include <paradiso/rgba.hpp>
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namespace paradiso {
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/**
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* @brief aggregate to handle bitmap data
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*/
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struct Bitmap final {
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/**
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* @brief creates an empty bitmap
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* @param[in] size extent of bitmap
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* @return an empty bitmap
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*/
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constexpr static Bitmap empty(Size size) noexcept {
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return {.size = size, .data = std::vector<RGBA>{size.area()}};
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}
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/**
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* @brief creates a bitmap from manually adding data
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* @param[in] size extent of bitmap
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* @param[in] values values to set the bitmap from
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* @return bitmap with data from this call
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*/
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template <typename... Arguments>
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static constexpr Bitmap from_data(Size size, Arguments... values) noexcept {
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assert(sizeof...(Arguments) == size.height * size.width);
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return {.size = size, .data = {values...}};
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}
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/**
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* @brief creates a bitmap from RGBA Values
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* @param[in] size extent of bitmap
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* @param[in] data vector of RGBA values
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* @return bitmap with data from this call
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*/
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static constexpr Bitmap from_data(Size size, std::vector<RGBA> data) noexcept {
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assert(data.size() == size.height * size.width);
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return {.size = size, .data = data};
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}
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/**
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* @brief fills a bitmap uniformly
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* @param[in] color RGBA value of a color
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* @return reference to itself
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*/
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constexpr auto fill(const RGBA& color) noexcept {
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change_count++;
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std::fill(data.begin(), data.end(), color);
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return *this;
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}
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/**
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* @brief access a pixel by position
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* @param[in] x x-component of position
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* @param[in] y y-component of position
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* @return reference to pixel data at position
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*/
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constexpr RGBA& pixel(std::integral auto x, std::integral auto y) {
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change_count++;
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return data[y * size.width + x];
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}
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/**
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* @brief access a pixel by position
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* @param[in] x x-component of position
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* @param[in] y y-component of position
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* @return const reference to pixel data at position
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*/
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constexpr const RGBA& pixel(std::integral auto x,
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std::integral auto y) const {
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return data[y * size.width + x];
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}
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constexpr void force_change() noexcept { change_count++; }
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Size size{.width = 0, .height = 0}; //!< extent of bitmap
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std::vector<RGBA> data{}; //!< data storage
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std::uint64_t change_count{};
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};
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} // namespace paradiso
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#endif |