59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
#include "mandelbrot.h"
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#include "utils.h"
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#include <cstdint>
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#include <iostream>
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using namespace mpfr;
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Mandelbrotc::Mandelbrotc(Vec2mp const &f, Vec2mp const &t, Vec2i const &s, uint32_t mi)
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: f(f), t(t), s(s), max_iter(mi)
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{
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this->threads = std::vector<std::thread>();
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this->screen = std::vector<std::vector<uint8_t>>();
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}
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void Mandelbrotc::start_threads()
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{
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}
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void Mandelbrotc::calc(const uint8_t tid)
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{
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mpreal x, y;
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for(double i = tid; i < this->s.x; i+=this->thread_count) {
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for(double j = 0; j < this->s.y; j++) {
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x = (mpfr::abs(this->f.x - this->t.x) * (i / this->s.x)) + this->f.x;
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y = (mpfr::abs(this->f.y - this->t.y) * (j / this->s.y)) + this->f.y;
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this->screen[i][j] = mandelbrot(Vec2mp(x, y));
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}
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}
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}
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uint32_t Mandelbrotc::mandelbrot(const Vec2mp &n)
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{
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uint32_t iter = 0;
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// BigFloat x = BigFloat(n.x.precision);
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// x.setValue(0.0);
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// BigFloat y = BigFloat(n.y.precision);
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// y.setValue(0.0);
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mpreal x = mpreal(0.0);
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mpreal xtemp = mpreal(0.0);
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mpreal y = mpreal(0.0);
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mpreal x2 = mpreal(0.0);
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mpreal y2 = mpreal(0.0);
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while (x*x + y*y <= 4 && iter < max_iter) {
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xtemp = x*x - y*y + n.x;
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y = 2*x*y+n.y;
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x = xtemp;
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iter++;
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}
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return iter;
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}
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