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+ mandelbrot visualisation

This commit is contained in:
Johannes Theiner 2019-12-31 14:39:10 +01:00
parent 21564bd54a
commit bffb0aae8a
3 changed files with 93 additions and 1 deletions
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2
main/main.cpp
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#include "internal.hpp" #include "vkvm.hpp" #include "../src/Bitmap.hpp" #include <unistd.h> //time to sleep for in seconds constexpr int sleepTime = 10; void displayImage(const std::string &file, vkvm::GraphicMode graphicMode) { vkvm::setMode(graphicMode); Bitmap image(file); vkvm::setWidth(image.getWidth()); vkvm::setHeight(image.getHeight()); for (int x = 0; x < vkvm::getWidth(); x++) { for (int y = 0; y < vkvm::getHeight(); y++) { unsigned int hex = image.getPixel(x, y); vkvm::Color color = vkvm::Color(hex); vkvm::setPixel(x, y, color); } } <unistd.h> Bitmap image(file); } void displayImage(const std::string &file) { displayImage(file, vkvm::GraphicMode::RGB); sleep(sleepTime); vkvm::setMode(vkvm::GraphicMode::Gray_256); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); vkvm::setMode(vkvm::GraphicMode::TwoColors); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); } int main() { bool running = true; vkvm::initialize(0); //vkvm::setLogLevel(vkvm::LogLevel::DEBUG); while(running) { displayImage("../res/P6.bmp"); sleep(sleepTime); vkvm::setBackgroundColor(vkvm::red); vkvm::setForegroundColor(vkvm::blue); vkvm::callEvent(vkvm::EventType::Redraw); vkvm::setBackgroundColor(vkvm::black); vkvm::setForegroundColor(vkvm::white); //time to sleep for in seconds displayImage("../res/P8.bmp"); displayImage("../res/P9.bmp"); displayImage("../res/P10.bmp"); vkvm::setText("Hello World"); sleep(sleepTime); vkvm::setFont(vkvm::FontType::FuturisticBlack); vkvm::callEvent(vkvm::EventType::RenderText); sleep(sleepTime); vkvm::setText("Hello World, lorem ipsum dolor sit amet"); sleep(sleepTime); vkvm::setFont(vkvm::FontType::ProFontIIX); vkvm::callEvent(vkvm::EventType::RenderText); sleep(sleepTime); } }
#include "internal.hpp" #include "vkvm.hpp" #include "../src/Bitmap.hpp" #include "../src/MathFunctions.hpp" #include <unistd.h> //time to sleep for in seconds constexpr int sleepTime = 10; void displayImage(const std::string &file, vkvm::GraphicMode graphicMode) { vkvm::setMode(graphicMode); Bitmap image(file); vkvm::setWidth(image.getWidth()); vkvm::setHeight(image.getHeight()); for (int x = 0; x < vkvm::getWidth(); x++) { for (int y = 0; y < vkvm::getHeight(); y++) { unsigned int hex = image.getPixel(x, y); vkvm::Color color = vkvm::Color(hex); vkvm::setPixel(x, y, color); } } <unistd.h> vkvm::setWidth(image.getWidth()); constexpr int sleepTime = 10; Bitmap image(file); for (int x = 0; x < vkvm::getWidth(); ++x) { for (int y = 0; y < vkvm::getHeight(); ++y) { vkvm::setPixel(x, y, color); } } } void displayImage(const std::string &file) { displayImage(file, vkvm::GraphicMode::RGB); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); vkvm::setMode(vkvm::GraphicMode::Gray_256); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); vkvm::setMode(vkvm::GraphicMode::TwoColors); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); } int main() { bool running = true; vkvm::initialize(0); while(running) { displayImage("../res/P6.bmp"); sleep(sleepTime); vkvm::setBackgroundColor(vkvm::red); vkvm::setForegroundColor(vkvm::blue); vkvm::callEvent(vkvm::EventType::Redraw); sleep(sleepTime); vkvm::setBackgroundColor(vkvm::black); vkvm::setForegroundColor(vkvm::white); //time to sleep for in seconds displayImage("../res/P8.bmp"); displayImage("../res/P9.bmp"); displayImage("../res/P10.bmp"); vkvm::setText("Hello World"); sleep(sleepTime); vkvm::setFont(vkvm::FontType::FuturisticBlack); vkvm::callEvent(vkvm::EventType::RenderText); sleep(sleepTime); vkvm::setText("Hello World, lorem ipsum dolor sit amet"); sleep(sleepTime); vkvm::setFont(vkvm::FontType::ProFontIIX); vkvm::callEvent(vkvm::EventType::RenderText); sleep(sleepTime); mandelbrot(); sleep(sleepTime); sleep(sleepTime); setColor(vkvm::black); sleep(sleepTime); } }

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src/MathFunctions.cpp Normal file
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#include "vkvm.hpp"
#include <cmath>
#include <random>
#include <chrono>
#include <unistd.h>
#include <internal.hpp>
#include <thread>
void sinus() {
for (int x = 0; x < vkvm::getWidth(); ++x) {
double y = 300 * sin(x);
vkvm::log(vkvm::LogLevel::DEBUG, y);
vkvm::setPixel(x, static_cast<int>(y), vkvm::getForegroundColor());
}
}
long double map(long double value, long double inputMin, long double inputMax, long double outputMin, long double outputMax) {
return (value - inputMin) * (outputMax - outputMin) / (inputMax - inputMin) + outputMin;
}
void mandelbrot() {
vkvm::setWidth(600);
vkvm::setHeight(800);
int width = vkvm::getWidth();
int height = vkvm::getHeight();
long double min = -2.84;
long double max = 1;
int maxIterations = 200;
double factor = 1;
for (int count = 0; count < 10000; count++) {
max -= 0.1 * factor;
min += 0.15 * factor;
factor *= 0.9349;
maxIterations += 5;
if(count > 30) {
maxIterations *= 1.02;
}
for (int x = 0; x < width; ++x) {
for (int y = 0; y < height; ++y) {
long double xMap = map(x, 0, width, min, max);
long double yMap = map(y, 0, height, min, max);
long double xInitial = xMap;
long double yInitial = yMap;
int n = 0;
for (int i = 0; i < maxIterations; ++i) {
long double x1 = xMap * xMap - yMap * yMap;
long double y1 = 2 * xMap * yMap;
xMap = x1 + xInitial;
yMap = y1 + yInitial;
if ((xMap + yMap) > 2) {
break;
}
n++;
}
int brightness = map(n, 0, maxIterations, 0, 255);
if (n == maxIterations || (brightness < 20)) {
brightness = 0;
}
int red = map(brightness * brightness, 0, 255 * 255, 0, 255);
int green = brightness;
int blue = map(sqrt(brightness), 0, sqrt(255), 0, 255);
vkvm::setPixel(x, y, vkvm::Color(red, green, blue));
}
}
vkvm::callEvent(vkvm::EventType::Redraw);
}
}

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src/MathFunctions.hpp Normal file
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#ifndef DEMO_MATHFUNCTIONS_H
#define DEMO_MATHFUNCTIONS_H
void sinus();
void mandelbrot();
#endif