/*
* 2ooM: The Master of Orion II Reverse Engineering Project
* Simple command-line tool to convert an LBX image to a set of PNGs.
- * Copyright (C) 2006-2010 Nick Bowler
+ * Copyright © 2006-2011, 2013 Nick Bowler
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
puts("For now, see the man page for detailed help.");
}
-static const char *progname;
-#define errmsg(fmt, ...) (\
- fprintf(stderr, "%s: " fmt, progname, __VA_ARGS__)\
-)
-
enum {
MODE_NONE,
MODE_DECODE,
MODE_IDENT,
};
-int parserange(struct lbx_imginfo *info, char *str, unsigned char *bits)
+int parserange(unsigned frames, char *str, unsigned char *bits)
{
unsigned long start, end;
unsigned int i;
char *endptr;
start = strtoul(str, &endptr, 0);
- if (start >= info->nframes) {
- errmsg("frame %lu out of range.\n", start);
+ if (start >= frames) {
+ tool_err(-1, "frame %lu out of range.", start);
return -1;
}
if (endptr == str) {
- errmsg("invalid frame range: %s.\n", str);
+ tool_err(-1, "invalid frame range: %s.", str);
return -1;
}
break;
case '-':
end = strtoul(endptr+1, &endptr, 0);
- if (end >= info->nframes) {
- errmsg("frame %lu out of range.\n", end);
+ if (end >= frames) {
+ tool_err(-1, "frame %lu out of range.", end);
return -1;
}
if (endptr == str)
- end = info->nframes - 1;
+ end = frames - 1;
break;
default:
- errmsg("invalid frame range: %s.\n", str);
+ tool_err(-1, "invalid frame range: %s.", str);
return -1;
}
if (end < start) {
- errmsg("invalid frame range: %s.\n", str);
+ tool_err(-1, "invalid frame range: %s.", str);
return -1;
}
row = malloc(4 * width);
if (!row) {
- errmsg("failed to allocate row buffer: %s\n", strerror(errno));
+ tool_err(0, "failed to allocate row buffer");
return -1;
}
of = fopen(name, "wb");
if (!of) {
- errmsg("failed to open %s: %s.\n", name, strerror(errno));
- free(row);
+ tool_err(0, "failed to open %s", name);
return -1;
}
png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png) {
- errmsg("failed to init libpng.\n", 0);
+ tool_err(-1, "failed to init libpng.");
goto err;
}
info = png_create_info_struct(png);
if (!info) {
- errmsg("failed to init libpng.\n", 0);
+ tool_err(-1, "failed to init libpng.");
png_destroy_write_struct(&png, NULL);
goto err;
}
struct lbx_imginfo info;
if (!overimg) {
- errmsg("failed to open override image: %s\n", lbx_errmsg());
+ tool_err(-1, "failed to open override image: %s", lbx_errmsg());
return -1;
}
lbx_img_getinfo(overimg, &info);
if (!info.palettesz) {
- errmsg("override image has no palette.\n", 0);
+ tool_err(-1, "override image has no palette.");
lbx_img_close(overimg);
return -1;
}
if (lbx_img_getpalette(overimg, palette) == -1) {
- errmsg("error reading override palette: %s\n", lbx_errmsg());
+ tool_err(-1, "error reading override palette: %s", lbx_errmsg());
lbx_img_close(overimg);
return -1;
}
/* For sanity. */
if (!palf && !info->palettesz && !override) {
- errmsg("no palette available.\n", 0);
+ tool_err(-1, "no palette available.");
return -1;
}
/* Read the external palette, if any. */
if (palf && lbx_img_loadpalette(palf, &lbx_default_fops, palette) != 0) {
- errmsg("error reading external palette: %s\n", lbx_errmsg());
+ tool_err(-1, "error reading external palette: %s", lbx_errmsg());
return -1;
}
/* Read the embedded palette, if any. */
if (info->palettesz && lbx_img_getpalette(img, palette) == -1) {
- errmsg("error reading embedded palette: %s\n", lbx_errmsg());
+ tool_err(-1, "error reading embedded palette: %s", lbx_errmsg());
return -1;
}
lbx_img_getinfo(img, &info);
- framebits = calloc(1, info.nframes / CHAR_BIT + 1);
+ framebits = calloc(1, img->frames / CHAR_BIT + 1);
if (!framebits) {
return EXIT_FAILURE;
}
/* Figure out what images we're extracting. */
if (!argv[0]) {
/* extract all images by default. */
- memset(framebits, -1, info.nframes / CHAR_BIT + 1);
+ memset(framebits, -1, img->frames / CHAR_BIT + 1);
} else {
for (i = 0; argv[i]; i++) {
- parserange(&info, argv[i], framebits);
+ parserange(img->frames, argv[i], framebits);
}
}
}
/* Extract the images, in order. */
- for (i = 0; i < info.nframes; i++) {
+ for (i = 0; i < img->frames; i++) {
unsigned char **data;
unsigned char **mask;
data = lbx_img_getframe(img, i);
if (!data) {
- errmsg("error in frame %u: %s\n", i, lbx_errmsg());
+ tool_err(-1, "error in frame %u: %s", i, lbx_errmsg());
continue;
}
mask = lbx_img_getmask(img);
- if (!outpng(i, data, mask, info.width, info.height, palette)) {
+ if (!outpng(i, data, mask, img->width, img->height, palette)) {
extracted = 1;
}
}
if (!extracted) {
- errmsg("no frames extracted.\n", 0);
+ tool_err(-1, "no frames extracted.");
goto err;
}
{ 0 }
};
- progname = "lbximg"; /* argv[0]; */
+ tool_init("lbximg", argc, argv);
while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
switch(opt) {
case 'i':
case 'p':
palf = fopen(optarg, "rb");
if (!palf) {
- errmsg("failed to open %s: %m\n", optarg);
+ tool_err(0, "failed to open %s", optarg);
return EXIT_FAILURE;
}
case 'O':
overf = fopen(optarg, "rb");
if (!overf) {
- errmsg("failed to open %s: %m\n", optarg);
+ tool_err(0, "failed to open %s", optarg);
return EXIT_FAILURE;
}
break;
case 'V':
- puts(VERSION_BOILERPLATE("lbximg"));
+ tool_version();
return EXIT_SUCCESS;
case 'U':
printusage();
}
if (mode == MODE_NONE) {
- errmsg("you must specify a mode.\n", 0);
+ tool_err(-1, "you must specify a mode.");
return EXIT_FAILURE;
}
img = lbx_img_open(&stdin_handle, &lbx_pipe_fops, NULL);
if (!img) {
- errmsg("failed to open image: %s.\n", lbx_errmsg());
+ tool_err(-1, "failed to open image: %s.", lbx_errmsg());
return EXIT_FAILURE;
}
lbx_img_getinfo(img, &info);
printf("%s is %ux%u LBX image, %u frame(s)%s%s\n",
- file, info.width, info.height, info.nframes,
+ file, img->width, img->height, img->frames,
info.palettesz ? ", embedded palette" : "",
- info.chunk ? ", chunked" : "",
+ img->chunk ? ", chunked" : "",
info.looping ? ", loops" : "");
}
projects / liblbx.git / blobdiff