forked from Hartmut/paradiso
Dokumentation ...
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4 changed files with 110 additions and 58 deletions
src/lib/include/paradiso
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@ -23,44 +23,70 @@
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#ifndef PARADISO_BITMAP_HPP
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#define PARADISO_BITMAP_HPP
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#include <paradiso/globals.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 {
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.size = size,
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.data = {values...}
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};
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return {.size = size, .data = {values...}};
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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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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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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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Size size{.width = 0, .height = 0};
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std::vector<RGBA> data{};
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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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};
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} // namespace paradiso
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