compressor.c

#include <raylib.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

char *suffix = ".compressed";

int main(int argc, char *argv[]) {

    if(argc != 2 && argc != 3){
        printf("Usage: %s -[d] <file>\n", argv[0]);
        return 1;
    }

    char *input_file;
    bool decompress = false;
    if(argc == 2){
        input_file = argv[1];
    } else {
        if(strcmp(argv[1], "-d") != 0){
            printf("Invalid option: %s\n", argv[1]);
            printf("Usage: %s -[d] <file>\n", argv[0]);
            return 1;
        }
        input_file = argv[2];
        decompress = true;
    }

    FILE *input = fopen(input_file, "r");
    if(!input){
        printf("Could not open file: %s\n", input_file);
        return 1;
    }

    suffix = decompress ? ".decompressed" : ".compressed";
    int  filename_len = strlen(input_file)+ strlen(suffix);
    char *output_file = (char *)malloc(filename_len);

    sprintf(output_file, "%s%s", input_file, suffix);

    printf("Compressing %s to %s\n", input_file, output_file);

    FILE *output = fopen(output_file, "w");
    if(!output){
        printf("Could not create file: %s\n", output_file);
        return 1;
    }


    fseek(input, 0L, SEEK_END);
    long input_size = ftell(input);
    rewind(input);

    unsigned char *input_data = (unsigned char *)malloc(input_size);
    int c;
    int index = 0;

    while((c = fgetc(input)) != EOF){
        input_data[index++] = c;
    }

    int  output_size = 0;


    unsigned char *final_data;

    if(decompress){
        final_data = DecompressData(input_data, input_size, &output_size);
    }
    else{
        final_data = CompressData(input_data, input_size, &output_size);
    }


    
    for(int i = 0; i < output_size; i++){
        fputc(final_data[i], output);
    }


    return 0;
}