Anthony Debucquoy
6c4944f985
It certainly is full of bug but the main goal is done so i'm kinda happy ^^
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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FILE *fd;
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size_t file_sz;
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unsigned char *file_cnt, *canvas;
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char *filename_output;
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int main(int argc, char *argv[])
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{
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argv++;
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while(--argc){
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const char* filename = *argv++;
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filename_output = malloc(sizeof(char) * strlen(filename) + 8);
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strcpy(filename_output, filename);
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fd = fopen(filename, "r");
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if(fd == NULL){
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fprintf(stderr, "couldn't open this file: %s\n", filename);
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continue;
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}
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// get file size
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fseek(fd, 0, SEEK_END);
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file_sz = ftell(fd);
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rewind(fd);
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file_cnt = malloc(sizeof(char)*file_sz);
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fread(file_cnt, sizeof(char), file_sz, fd);
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canvas = calloc(256*256, sizeof(char));
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double weight = (double)file_sz / 255;
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for (size_t i = 0; i < file_sz - 1; ++i) {
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unsigned char at_pos = file_cnt[i], next_pos = file_cnt[i+1];
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canvas[at_pos + next_pos * 256] += weight;
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}
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stbi_write_png(strcat(filename_output, ".out.png"), 256, 256, 1, canvas, 256);
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free(canvas);
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free(file_cnt);
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free(filename_output);
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fclose(fd);
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}
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return 0;
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}
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