iff2raw/iff2raw.c at master · nattfalk/iff2raw · GitHub

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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdbool.h>
#include <getopt.h>

#include "iff2raw.h"
#include "byte_order.h"
#include "iff_loader.h"
#include "iff_image.h"
#include "raw_writer.h"

_options opts;

void print_usage()
{
    fprintf(stderr, "Usage: iff2raw [flags]\n\n");
    fprintf(stderr, "Flags:\n");
    fprintf(stderr, "  -i <filename>    Input filename\n");
    fprintf(stderr, "  -o <filename>    Output filename without extension\n");
    fprintf(stderr, "  -c <mode>        Color mode. 4=4 bits per channel (default), 8=8 bits per channel\n");
    fprintf(stderr, "  -p <mode>        Palette output mode. 0=binary (default), 1=asm-source\n");
    fprintf(stderr, "  -r <mode>        Row output mode. 0=normal (default), 1=interleaved\n");
    fprintf(stderr, "  -v               Verbose mode");
    fprintf(stderr, "\n");
    fprintf(stderr, "  -h               Print this message and exit\n");
    fprintf(stderr, "\n");
}

static bool collect_arguments(int argc, char **argv)
{
    int ch;

    if (argc < 2)
    {
        fprintf(stderr, "** Wrong number of arguments!\n\n");
        return false;
    }

    while ((ch = getopt(argc, argv, "c:h:i:o:p:r:v")) != -1)
    {
        switch (ch) {
            case 'i':
                opts.input_filename = strdup(optarg);
                break;

            case 'o':
                opts.output_filename = strdup(optarg);
                break;

            case 'c':
                opts.color_mode = atoi(optarg);
                break;

            case 'p':
                opts.palette_mode = atoi(optarg);
                break;

            case 'r':
                opts.row_mode = atoi(optarg);
                break;

            case 'v':
                opts.verbose_mode = true;
                break;

            case 'h':
            default:
                return false;
        }
    }

    return true;
}

int main(int argc, char** argv)
{
    fprintf(stderr, "iff2raw 0.1 Copyright (c) Michael Nattfalk 2019\n\n");

    if(!collect_arguments(argc, argv)) {
        print_usage();
        exit(1);
    }

    iff_image_data image;
    if(iff_loadimage(&opts, &image))
    {
        raw_writeimage(&opts, &image);
    }

    if (image.data)
        free(image.data);
    if (image.palette)
        free(image.palette);

    return 0;
}