/*
 * render.c
 *
 *  Created on: 15.01.2018
 *      Author: Superleo1810
 */

#include "render_cpu.h"
#define HAVE_STRUCT_TIMESPEC

void init_cpu(config_t *config)
{
	config_cpu = config;
}

void render_cpu(d64 x_min, d64 y_min, d64 x_max, d64 y_max)
{
	calculate(x_min, y_min, x_max, y_max, config_cpu->set_func, config_cpu->arr);
	printf("end render cpu\n");
}

void calculate(d64 x_min, d64 y_min, d64 x_max, d64 y_max, u32 (*sfunc) (d64, d64, u32), u32 *arr)
{
	pthread_t thread;
	ThreadArgs *args = (ThreadArgs *) malloc(config_cpu->config_cpu.threads * sizeof(ThreadArgs));
	for(u8 i = 0; i < config_cpu->config_cpu.threads; i++)
	{
		args[i] = (ThreadArgs) { .tc = config_cpu->config_cpu.threads, .tid = i, .x_min = x_min, .y_min = y_min, .x_max = x_max, .y_max = y_max, .sfunc = sfunc, .arr = arr };
		pthread_create(&thread, NULL, calculate_t, (void *)&args[i]);
	}
	pthread_join(thread, NULL);
	free(args);
}

void calculate_t(void *args)
{
	ThreadArgs *_args = (ThreadArgs *)args;
	d64 x_math, y_math;
	u32 iterations;
	for (u32 y = (config_cpu->height/_args->tc)*(_args->tid); y < config_cpu->height; y++)
	{
		for (u32 x = 0; x < config_cpu->width; x++)
		{
			x_math = _args->x_min + ((d64) x * (_args->x_max - _args->x_min)) / config_cpu->width;
			y_math = _args->y_min + ((d64) (config_cpu->height - y) * (_args->y_max - _args->y_min)) / config_cpu->height;
			iterations = _args->sfunc(x_math, y_math, config_cpu->iterations);
//			color[2].s0 = ((1.0f + native_cos(c)) * 0.5f) * 255;
//			color[2].s1 = ((1.0f + native_cos(2.0f * c + 2.0f * 3.1416f / 3.0f)) * 0.5f) * 255;
//			color[2].s2 = ((1.0f + native_cos(c - 2.0f * 3.1416f / 3.0f)) * 0.5f) * 255;
			_args->arr[COORDS(x, y, config_cpu->width)] = (((1<<24)-1)*iterations)/config_cpu->iterations;
		}
	}
}

void idle_cpu(void)
{

}