Back to basic SDL application boilerplate

1 files changed, 0 insertions, 125 deletions

diff --git a/mandelbrot.c b/mandelbrot.c
deleted file mode 100644
index 7017a54..0000000
--- a/mandelbrot.c
+++ /dev/null
@@ -1,125 +0,0 @@
-#include <stdio.h>
-#include <math.h>
-#include <pthread.h>
-#include "header.h"
-
-#define PRINT_REAL_LO -2.0
-#define PRINT_REAL_HI 2.0
-#define PRINT_IMAG_LO -2.0
-#define PRINT_IMAG_HI 2.0
-#define AXIS_DIV 46.0
-#define REAL_AXIS_STEP ((PRINT_REAL_HI - PRINT_REAL_LO) / AXIS_DIV)
-#define IMAG_AXIS_STEP ((PRINT_IMAG_HI - PRINT_IMAG_LO) / AXIS_DIV)
-#define SAMPLES 1
-
-#define IN_CHAR '*'
-#define OUT_CHAR ' '
-
-static void *pixel_row(void *args);
-
-int mandelbrot_in_set(double ca, double cb)
-{
-    double zr = ca;
-    double zi = cb;
-    double zr_square;
-    double zi_square;
-    int n;
-    for (n = 0; n < MAX_ITERATION; n++)
-    {
-        zi_square = zi * zi;
-        zr_square = zr * zr;
-        if (zr_square + zi_square > ESCAPE_RADIUS_SQUARED)
-            return n;
-            /* return n + 5 - clog(ESCAPE_RADIUS) / log(2); */
-        zi = 2 * zr * zi;
-        zr = zr_square - zi_square;
-        zi += cb;
-        zr += ca;
-    }
-    return n;
-}
-
-
-int mandelbrot_in_set_super_sampled(double ca, double cb, double real_step, double imag_step)
-{
-    int total = 0;
-    for (int i = 0; i < SAMPLES; i++)
-        total += mandelbrot_in_set(ca - (double_rand() * real_step) / 2,
-                                   cb - (double_rand() * imag_step) / 2);
-    return total / SAMPLES;
-}
-
-void *mandelbrot_pixels(double real_lo, double real_hi, double imag_lo,
-                        double imag_hi, int width, int height, Color *palette)
-{
-    Byte *pixels = (Byte*)malloc(width * height * PIXELS_CHANELS);
-    if (pixels == NULL)
-        return NULL;
-    pthread_t *threads = (pthread_t*)malloc(sizeof(pthread_t) * height);
-    if (threads == NULL)
-        return NULL;
-    for (int y = 0; y < height; y++)
-    {
-        ThreadArgs *args = (ThreadArgs*)malloc(sizeof(ThreadArgs));
-        if (args == NULL)
-            return NULL;
-        args->real_lo = real_lo;
-        args->real_hi = real_hi;
-        args->width = width;
-        args->imag = map_range((double)y, 0, height, imag_lo, imag_hi);
-        args->imag_step = (imag_hi - imag_lo) / (0.5 + (height - 1));
-        args->palette = palette;
-        args->row = pixels + PIXELS_CHANELS * width * y;
-        pthread_create(&threads[y], NULL, pixel_row, args);
-    }
-    for (int y = 0; y < height; y++)
-        pthread_join(threads[y], NULL);
-    free(threads);
-    return (void*)pixels;
-}
-
-static void *pixel_row(void *void_args)
-{
-    ThreadArgs *args = (ThreadArgs*)void_args;
-    int iterations;
-    double real_step = (args->real_hi - args->real_lo) / (0.5 + (args->width - 1));
-    for (int x = 0; x < args->width; x++)
-    {
-        double a = map_range((double)x, 0, args->width, args->real_lo, args->real_hi);
-        if (SAMPLES == 1)
-            iterations = mandelbrot_in_set(a, args->imag);
-        else
-        {
-            iterations = mandelbrot_in_set_super_sampled(
-                a, args->imag, real_step, args->imag_step);
-        }
-
-        /* double logBase = 1.0 / log(2.0); */
-        /* double logHalfBase = log(0.5) * logBase; */
-        /* int color_index = (int)(5 + iterations - logHalfBase */
-        /*                   - log(log(a * a + args->imag * args->imag)) * logBase); */
-        Color color = args->palette[iterations];
-        int row_index = x * PIXELS_CHANELS;
-        args->row[row_index] = color.rgb.r;
-        args->row[row_index + 1] = color.rgb.g;
-        args->row[row_index + 2] = color.rgb.b;
-    }
-    free(args);
-    return NULL;
-}
-
-void mandelbrot_print(void)
-{
-    for (double i = PRINT_IMAG_LO; i < PRINT_IMAG_HI; i += IMAG_AXIS_STEP)
-    {
-        for (double r = PRINT_REAL_LO; r < PRINT_REAL_HI; r += REAL_AXIS_STEP)
-        {
-            if (mandelbrot_in_set(r, i) == -1)
-                putchar(IN_CHAR);
-            else
-                putchar(OUT_CHAR);
-            putchar(' ');
-        }
-        putchar('\n');
-    }
-}