ref: c20ac350746b318e6399b1bb11d1ad7800263bef
dir: /src/gfx/main.c/
/*
* This file is part of RGBDS.
*
* Copyright (c) 2013-2018, stag019 and RGBDS contributors.
*
* SPDX-License-Identifier: MIT
*/
#include <png.h>
#include <stdlib.h>
#include <string.h>
#include "gfx/main.h"
#include "extern/getopt.h"
#include "version.h"
int depth, colors;
/* Short options */
static char const *optstring = "Aa:CDd:Ffhmo:Pp:Tt:uVvx:";
/*
* Equivalent long options
* Please keep in the same order as short opts
*
* Also, make sure long opts don't create ambiguity:
* A long opt's name should start with the same letter as its short opt,
* except if it doesn't create any ambiguity (`verbose` versus `version`).
* This is because long opt matching, even to a single char, is prioritized
* over short opt matching
*/
static struct option const longopts[] = {
{ "output-attr-map", no_argument, NULL, 'A' },
{ "attr-map", required_argument, NULL, 'a' },
{ "color-curve", no_argument, NULL, 'C' },
{ "debug", no_argument, NULL, 'D' },
{ "depth", required_argument, NULL, 'd' },
{ "fix", no_argument, NULL, 'f' },
{ "fix-and-save", no_argument, NULL, 'F' },
{ "horizontal", no_argument, NULL, 'h' },
{ "mirror-tiles", no_argument, NULL, 'm' },
{ "output", required_argument, NULL, 'o' },
{ "output-palette", no_argument, NULL, 'P' },
{ "palette", required_argument, NULL, 'p' },
{ "output-tilemap", no_argument, NULL, 'T' },
{ "tilemap", required_argument, NULL, 't' },
{ "unique-tiles", no_argument, NULL, 'u' },
{ "version", no_argument, NULL, 'V' },
{ "verbose", no_argument, NULL, 'v' },
{ "trim-end", required_argument, NULL, 'x' },
{ NULL, no_argument, NULL, 0 }
};
static void print_usage(void)
{
fputs(
"Usage: rgbgfx [-CDhmuVv] [-f | -F] [-a <attr_map> | -A] [-d <depth>]\n"
" [-o <out_file>] [-p <pal_file> | -P] [-t <tile_map> | -T]\n"
" [-x <tiles>] <file>\n"
"Useful options:\n"
" -f, --fix make the input image an indexed PNG\n"
" -m, --mirror-tiles optimize out mirrored tiles\n"
" -o, --output <path> set the output binary file\n"
" -t, --tilemap <path> set the output tilemap file\n"
" -u, --unique-tiles optimize out identical tiles\n"
" -V, --version print RGBGFX version and exit\n"
"\n"
"For help, use `man rgbgfx' or go to https://rgbds.gbdev.io/docs/\n",
stderr);
exit(1);
}
int main(int argc, char *argv[])
{
int ch, size;
struct Options opts = {0};
struct ImageOptions png_options = {0};
struct RawIndexedImage *raw_image;
struct GBImage gb = {0};
struct Mapfile tilemap = {0};
struct Mapfile attrmap = {0};
char *ext;
opts.tilemapfile = "";
opts.attrmapfile = "";
opts.palfile = "";
opts.outfile = "";
depth = 2;
while ((ch = musl_getopt_long_only(argc, argv, optstring, longopts,
NULL)) != -1) {
switch (ch) {
case 'A':
opts.attrmapout = true;
break;
case 'a':
opts.attrmapfile = optarg;
break;
case 'C':
opts.colorcurve = true;
break;
case 'D':
opts.debug = true;
break;
case 'd':
depth = strtoul(optarg, NULL, 0);
break;
case 'F':
opts.hardfix = true;
/* fallthrough */
case 'f':
opts.fix = true;
break;
case 'h':
opts.horizontal = true;
break;
case 'm':
opts.mirror = true;
opts.unique = true;
break;
case 'o':
opts.outfile = optarg;
break;
case 'P':
opts.palout = true;
break;
case 'p':
opts.palfile = optarg;
break;
case 'T':
opts.tilemapout = true;
break;
case 't':
opts.tilemapfile = optarg;
break;
case 'u':
opts.unique = true;
break;
case 'V':
printf("rgbgfx %s\n", get_package_version_string());
exit(0);
case 'v':
opts.verbose = true;
break;
case 'x':
opts.trim = strtoul(optarg, NULL, 0);
break;
default:
print_usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc == 0) {
fputs("FATAL: no input files\n", stderr);
print_usage();
}
#define WARN_MISMATCH(property) \
warnx("The PNG's " property \
" setting doesn't match the one defined on the command line")
opts.infile = argv[argc - 1];
if (depth != 1 && depth != 2)
errx(1, "Depth option must be either 1 or 2.");
colors = 1 << depth;
raw_image = input_png_file(&opts, &png_options);
png_options.tilemapfile = "";
png_options.attrmapfile = "";
png_options.palfile = "";
if (png_options.horizontal != opts.horizontal) {
if (opts.verbose)
WARN_MISMATCH("horizontal");
if (opts.hardfix)
png_options.horizontal = opts.horizontal;
}
if (png_options.horizontal)
opts.horizontal = png_options.horizontal;
if (png_options.trim != opts.trim) {
if (opts.verbose)
WARN_MISMATCH("trim");
if (opts.hardfix)
png_options.trim = opts.trim;
}
if (png_options.trim)
opts.trim = png_options.trim;
if (raw_image->width % 8) {
errx(1, "Input PNG file %s not sized correctly. The image's width must be a multiple of 8.",
opts.infile);
}
if (raw_image->width / 8 > 1 && raw_image->height % 8) {
errx(1, "Input PNG file %s not sized correctly. If the image is more than 1 tile wide, its height must be a multiple of 8.",
opts.infile);
}
if (opts.trim &&
opts.trim > (raw_image->width / 8) * (raw_image->height / 8) - 1) {
errx(1, "Trim (%d) for input raw_image file '%s' too large (max: %u)",
opts.trim, opts.infile,
(raw_image->width / 8) * (raw_image->height / 8) - 1);
}
if (strcmp(png_options.tilemapfile, opts.tilemapfile) != 0) {
if (opts.verbose)
WARN_MISMATCH("tilemap file");
if (opts.hardfix)
png_options.tilemapfile = opts.tilemapfile;
}
if (!*opts.tilemapfile)
opts.tilemapfile = png_options.tilemapfile;
if (png_options.tilemapout != opts.tilemapout) {
if (opts.verbose)
WARN_MISMATCH("tilemap file");
if (opts.hardfix)
png_options.tilemapout = opts.tilemapout;
}
if (png_options.tilemapout)
opts.tilemapout = png_options.tilemapout;
if (strcmp(png_options.attrmapfile, opts.attrmapfile) != 0) {
if (opts.verbose)
WARN_MISMATCH("attrmap file");
if (opts.hardfix)
png_options.attrmapfile = opts.attrmapfile;
}
if (!*opts.attrmapfile)
opts.attrmapfile = png_options.attrmapfile;
if (png_options.attrmapout != opts.attrmapout) {
if (opts.verbose)
WARN_MISMATCH("attrmap file");
if (opts.hardfix)
png_options.attrmapout = opts.attrmapout;
}
if (png_options.attrmapout)
opts.attrmapout = png_options.attrmapout;
if (strcmp(png_options.palfile, opts.palfile) != 0) {
if (opts.verbose)
WARN_MISMATCH("palette file");
if (opts.hardfix)
png_options.palfile = opts.palfile;
}
if (!*opts.palfile)
opts.palfile = png_options.palfile;
if (png_options.palout != opts.palout) {
if (opts.verbose)
WARN_MISMATCH("palette file");
if (opts.hardfix)
png_options.palout = opts.palout;
}
#undef WARN_MISMATCH
if (png_options.palout)
opts.palout = png_options.palout;
if (!*opts.tilemapfile && opts.tilemapout) {
ext = strrchr(opts.infile, '.');
if (ext != NULL) {
size = ext - opts.infile + 9;
opts.tilemapfile = malloc(size);
strncpy(opts.tilemapfile, opts.infile, size);
*strrchr(opts.tilemapfile, '.') = '\0';
strcat(opts.tilemapfile, ".tilemap");
} else {
opts.tilemapfile = malloc(strlen(opts.infile) + 9);
strcpy(opts.tilemapfile, opts.infile);
strcat(opts.tilemapfile, ".tilemap");
}
}
if (!*opts.attrmapfile && opts.attrmapout) {
ext = strrchr(opts.infile, '.');
if (ext != NULL) {
size = ext - opts.infile + 9;
opts.attrmapfile = malloc(size);
strncpy(opts.attrmapfile, opts.infile, size);
*strrchr(opts.attrmapfile, '.') = '\0';
strcat(opts.attrmapfile, ".attrmap");
} else {
opts.attrmapfile = malloc(strlen(opts.infile) + 9);
strcpy(opts.attrmapfile, opts.infile);
strcat(opts.attrmapfile, ".attrmap");
}
}
if (!*opts.palfile && opts.palout) {
ext = strrchr(opts.infile, '.');
if (ext != NULL) {
size = ext - opts.infile + 5;
opts.palfile = malloc(size);
strncpy(opts.palfile, opts.infile, size);
*strrchr(opts.palfile, '.') = '\0';
strcat(opts.palfile, ".pal");
} else {
opts.palfile = malloc(strlen(opts.infile) + 5);
strcpy(opts.palfile, opts.infile);
strcat(opts.palfile, ".pal");
}
}
gb.size = raw_image->width * raw_image->height * depth / 8;
gb.data = calloc(gb.size, 1);
gb.trim = opts.trim;
gb.horizontal = opts.horizontal;
if (*opts.outfile || *opts.tilemapfile || *opts.attrmapfile) {
raw_to_gb(raw_image, &gb);
create_mapfiles(&opts, &gb, &tilemap, &attrmap);
}
if (*opts.outfile)
output_file(&opts, &gb);
if (*opts.tilemapfile)
output_tilemap_file(&opts, &tilemap);
if (*opts.attrmapfile)
output_attrmap_file(&opts, &attrmap);
if (*opts.palfile)
output_palette_file(&opts, raw_image);
if (opts.fix || opts.debug)
output_png_file(&opts, &png_options, raw_image);
destroy_raw_image(&raw_image);
free(gb.data);
return 0;
}