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Made ASCII map static

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Lauchmelder 2022-01-20 15:42:43 +01:00
parent 3da237a46b
commit 914bb670dd
2 changed files with 9 additions and 3 deletions
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4
include/bild.hpp
View file

@ -13,6 +13,10 @@
*/ */
class Bild class Bild
{ {
public:
// ASCII characters used when printing the image to stdcout
static const std::string asciiBrightnessMap;
public: public:
/** /**
* @brief Creates a new empty picture. * @brief Creates a new empty picture.

8
src/bild.cpp
View file

@ -3,6 +3,8 @@
#include <iostream> #include <iostream>
#include <sstream> #include <sstream>
const std::string Bild::asciiBrightnessMap = ".'`^\",:;Il!i><~+_-?][}{1)(|\\/tfjrxnuvczXYUJCLQ0OZmwqpdbkhao*#MW&8%B@$";
std::ifstream& operator>>(std::ifstream& file, Bild& image) std::ifstream& operator>>(std::ifstream& file, Bild& image)
{ {
std::string lineContent; std::string lineContent;
@ -85,7 +87,7 @@ std::ofstream& operator<<(std::ofstream& file, const Bild& image)
std::ostream& operator<<(std::ostream& os, const Bild& image) std::ostream& operator<<(std::ostream& os, const Bild& image)
{ {
std::string asciiBrightnessMap(".'`^\",:;Il!i><~+_-?][}{1)(|\\/tfjrxnuvczXYUJCLQ0OZmwqpdbkhao*#MW&8%B@$");
for(uint16_t y = 0; y < image.height; y++) for(uint16_t y = 0; y < image.height; y++)
{ {
@ -95,8 +97,8 @@ std::ostream& operator<<(std::ostream& os, const Bild& image)
uint8_t brightness = image.pixels[y * image.width + x]; uint8_t brightness = image.pixels[y * image.width + x];
// Map the pixel brightness (which is in the interval [0, 255]) to the ascii chart length // Map the pixel brightness (which is in the interval [0, 255]) to the ascii chart length
uint8_t asciiMapIndex = static_cast<uint8_t>(brightness * (asciiBrightnessMap.length() - 1) / 255); uint8_t asciiMapIndex = static_cast<uint8_t>(brightness * (Bild::asciiBrightnessMap.length() - 1) / 255);
lineBuffer << asciiBrightnessMap[asciiMapIndex]; lineBuffer << Bild::asciiBrightnessMap[asciiMapIndex];
} }
std::cout << lineBuffer.str() << std::endl; std::cout << lineBuffer.str() << std::endl;