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#ifndef MTHREAD_H
#define MTHREAD_H
#include <mutex>
#include <atomic>
#include <thread>
#include <complex>
#include <condition_variable>
#include "libpng_wrapper.hpp"
struct mthread_status {
std::mutex status_lock;
unsigned int row_load;
bool share_finished;
bool searching;
bool div_syn;
std::mutex ack_lk;
std::mutex syn_ack_lk;
bool div_error;
std::condition_variable msg_notify;
};
struct mthread_divinfo {
uint32_t x_min, x_max;
uint32_t y_min, y_max;
};
class mthread {
public:
mthread(unsigned int x_mn, unsigned int x_mx,
std::complex<double> c_min, std::complex<double> c_max,
unsigned int inf_cutoff, unsigned int max_iter, png& image, double *g_vmap, unsigned int *g_histogram,
mthread **worker_list, unsigned int id, unsigned int jobs, std::atomic<uint32_t>& progress);
virtual ~mthread(); //virtual in case a modified renderer needs to allocate memory
void join();
void dispatch();
struct mthread_status status;
unsigned int *histogram;
protected:
const unsigned int min_lines = 4;
const unsigned int x_min_orig, x_max_orig;
const std::complex<double> c_min;
const std::complex<double> c_max;
const unsigned int inf_cutoff;
const unsigned int max_iter;
png& image;
double *vmap;
const unsigned int id;
mthread **workers;
std::complex<double> c_current_min;
std::complex<double> c_current_max;
std::complex<double> step;
std::thread *my_thread;
const unsigned int worker_cnt;
std::atomic<uint32_t>& progress;
uint32_t x_min, x_max, y_min, y_max;
uint32_t on_x, on_y;
unsigned int divisions;
int state;
struct mthread_divinfo divide();
virtual void render_area();
void run();
bool find_work();
void check_work_request();
};
#endif
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