M Makefile => Makefile +1 -1
@@ 2,7 2,7 @@ CC = gcc
CFLAGS = -Wall -Wextra -Werror -g3 -I include/
LIBFLAGS = -lm -lSDL3
-SRC = src/main.c src/color.c src/math.c
+SRC = src/main.c src/draw.c src/math.c
OBJ = $(SRC:.c=.o)
OUT = mandelbrot
M include/mandelbrot.h => include/mandelbrot.h +20 -1
@@ 1,12 1,31 @@
#ifndef MANDELBROT_H
#define MANDELBROT_H
+#include "SDL3/SDL.h"
+
+// TODO: GPU shadering option
+// TODO: flexible window size
+// TODO: maybe? change colors
+
+#define WINDOW_TITLE "Mandelbrot Visualization"
+#define WINDOW_WIDTH 800
+#define WINDOW_HEIGHT 600
+
+typedef struct position_s {
+ double x_min;
+ double x_max;
+ double y_min;
+ double y_max;
+} position_t;
+
// math.c
int mandelbrot_iterations(double cr, double ci, int max_iter);
+void calculate_points(position_t* pos);
-// color.c
+// draw.c
// TODO: color struct or something
void get_color(int iter, int max_iter, int* r, int* g, int* b);
+void draw_points(SDL_Surface* surface);
#endif
R src/color.c => src/draw.c +16 -0
@@ 1,3 1,19 @@
+#include "mandelbrot.h"
+
+void get_color(int iter, int max_iter, int* r, int* g, int* b);
+
+int points[WINDOW_WIDTH * WINDOW_HEIGHT];
+
+void draw_points(SDL_Surface* surface) {
+ for (int py = 0; py < WINDOW_HEIGHT; py++) {
+ for (int px = 0; px < WINDOW_WIDTH; px++) {
+ int r, g, b;
+ get_color(points[py * WINDOW_WIDTH + px], 100, &r, &g, &b);
+ SDL_WriteSurfacePixel(surface, px, py, r, g, b, 255);
+ }
+ }
+};
+
void get_color(int iter, int max_iter, int* r, int* g, int* b) {
if (iter == max_iter) {
*r = *g = *b = 0; // black inside the set
M src/main.c => src/main.c +0 -39
@@ 1,4 1,3 @@
-#include "SDL3/SDL.h"
#include "mandelbrot.h"
#include <SDL3/SDL_events.h>
#include <SDL3/SDL_init.h>
@@ 11,44 10,6 @@
#include <stdio.h>
#include <stdlib.h>
-// TODO: GPU shadering option
-// TODO: flexible window size
-// TODO: maybe? change colors
-
-#define WINDOW_TITLE "Mandelbrot Visualization"
-#define WINDOW_WIDTH 800
-#define WINDOW_HEIGHT 600
-
-static int points[WINDOW_WIDTH * WINDOW_HEIGHT];
-
-typedef struct position_s {
- double x_min;
- double x_max;
- double y_min;
- double y_max;
-} position_t;
-
-void calculate_points(position_t* pos) {
- int max_iter = 100;
- for (int py = 0; py < WINDOW_HEIGHT; py++) {
- for (int px = 0; px < WINDOW_WIDTH; px++) {
- double cr = pos->x_min + (pos->x_max - pos->x_min) * px / (WINDOW_WIDTH - 1);
- double ci = pos->y_min + (pos->y_max - pos->y_min) * py / (WINDOW_HEIGHT - 1);
- points[py * WINDOW_WIDTH + px] = mandelbrot_iterations(cr, ci, max_iter);
- }
- }
-}
-
-void draw_points(SDL_Surface* surface) {
- for (int py = 0; py < WINDOW_HEIGHT; py++) {
- for (int px = 0; px < WINDOW_WIDTH; px++) {
- int r, g, b;
- get_color(points[py * WINDOW_WIDTH + px], 100, &r, &g, &b);
- SDL_WriteSurfacePixel(surface, px, py, r, g, b, 255);
- }
- }
-};
-
int main(void) {
if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS)) {
fprintf(stderr, "SDL_Init failed: %s\n", SDL_GetError());
M src/math.c => src/math.c +14 -0
@@ 1,3 1,4 @@
+#include "mandelbrot.h"
// the mandelbrot set, basically, is a set of points on the complex plane -
// those points are found using the following equation:
//
@@ 31,3 32,16 @@ int mandelbrot_iterations(double cr, double ci, int max_iter) {
}
return iter;
}
+
+extern int points[WINDOW_WIDTH * WINDOW_HEIGHT];
+
+void calculate_points(position_t* pos) {
+ int max_iter = 100;
+ for (int py = 0; py < WINDOW_HEIGHT; py++) {
+ for (int px = 0; px < WINDOW_WIDTH; px++) {
+ double cr = pos->x_min + (pos->x_max - pos->x_min) * px / (WINDOW_WIDTH - 1);
+ double ci = pos->y_min + (pos->y_max - pos->y_min) * py / (WINDOW_HEIGHT - 1);
+ points[py * WINDOW_WIDTH + px] = mandelbrot_iterations(cr, ci, max_iter);
+ }
+ }
+}