X-Git-Url: https://git.draconx.ca/gitweb/liblbx.git/blobdiff_plain/76e363aa42e94748b34370e7f01aa587e555722c..716dc53086e5b9494038a22f4b6eb776d9b03d0d:/src/lbximg.c
diff --git a/src/lbximg.c b/src/lbximg.c
index 6c6de57..933e1e0 100644
--- a/src/lbximg.c
+++ b/src/lbximg.c
@@ -1,4 +1,22 @@
-#define _GNU_SOURCE
+/*
+ * 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) 2006-2008 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+#include
#include
#include
#include
@@ -9,6 +27,7 @@
#include
+#include "tools.h"
#include "image.h"
#include "lbx.h"
@@ -17,6 +36,19 @@ static int verbose = 0;
static char *outname = "out";
static int usepalette = 1;
+static void printusage(void)
+{
+ puts("usage: lbximg [-i|-d] [-v] [-p palette_file] [-O override_file]"
+ " [-f path]");
+ puts(" [frameno ...]");
+}
+
+static void printhelp(void)
+{
+ printusage();
+ puts("For now, see the man page for detailed help.");
+}
+
static const char *progname;
#define errmsg(fmt, ...) (\
fprintf(stderr, "%s: " fmt, progname, __VA_ARGS__)\
@@ -144,12 +176,19 @@ int outpng(unsigned int frameno,
* data to libpng and let it do its magic.
*/
+ png_color png_palette[256];
+ for (unsigned i = 0; i < 256; i++) {
+ png_palette[i].red = palette[i].red;
+ png_palette[i].green = palette[i].green;
+ png_palette[i].blue = palette[i].blue;
+ }
+
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT);
- png_set_PLTE(png, info, (png_colorp)palette, 256);
+ png_set_PLTE(png, info, png_palette, 256);
png_set_rows(png, info, framedata);
png_write_png(png, info, PNG_TRANSFORM_IDENTITY, NULL);
} else {
@@ -206,7 +245,7 @@ static int loadoverride(FILE *f, struct lbx_colour palette[static 256])
}
lbximg_getinfo(overimg, &info);
- if (!info.haspalette) {
+ if (!info.palettesz) {
errmsg("override image has no palette.\n", 0);
lbximg_close(overimg);
return -1;
@@ -238,7 +277,7 @@ static int loadpalette(LBX_IMG *img, struct lbx_imginfo *info,
}
/* For sanity. */
- if (!palf && !info->haspalette && !override) {
+ if (!palf && !info->palettesz && !override) {
errmsg("no palette available.\n", 0);
return -1;
}
@@ -249,13 +288,13 @@ static int loadpalette(LBX_IMG *img, struct lbx_imginfo *info,
}
/* Read the external palette, if any. */
- if (palf && lbximg_loadpalette(palf, palette) == -1) {
+ if (palf && lbximg_loadpalette(palf, &lbx_default_fops, palette) != 0) {
errmsg("error reading external palette: %s\n", lbx_strerror());
return -1;
}
/* Read the embedded palette, if any. */
- if (info->haspalette && lbximg_getpalette(img, palette) == -1) {
+ if (info->palettesz && lbximg_getpalette(img, palette) == -1) {
errmsg("error reading embedded palette: %s\n", lbx_strerror());
return -1;
}
@@ -332,21 +371,25 @@ err:
int main(int argc, char **argv)
{
- int mode = MODE_NONE;
- FILE *inf = stdin, *palf = NULL, *overf = NULL;
+ int mode = MODE_NONE, opt, rc = EXIT_FAILURE;
+ struct lbx_pipe_state state = { .f = stdin };
+ FILE *palf = NULL, *overf = NULL;
const char *name = "stdin";
LBX_IMG *img;
- int opt;
- static const char *sopts = "idvf:p:O:";
+ static const char *sopts = "idvf:p:O:V";
static const struct option lopts[] = {
- { "info", 0, NULL, 'i' },
+ { "ident", 0, NULL, 'i' },
{ "decode", 0, NULL, 'd' },
{ "verbose", 0, NULL, 'v' },
{ "file", 1, NULL, 'f' },
{ "palette", 1, NULL, 'p' },
{ "override", 1, NULL, 'p' },
+ { "version", 0, NULL, 'V' },
+ { "usage", 0, NULL, 'U' },
+ { "help", 0, NULL, 'H' },
+
{ "nopalette", 0, &usepalette, 0 },
{ 0 }
@@ -365,14 +408,10 @@ int main(int argc, char **argv)
verbose = 1;
break;
case 'f':
- if (strcmp(optarg, "-") == 0)
- break;
-
name = strrchr(optarg, '/');
name = name ? name+1 : optarg;
- inf = fopen(optarg, "rb");
- if (!inf) {
+ if (!freopen(optarg, "rb", state.f)) {
errmsg("failed to open %s: %m\n", optarg);
return EXIT_FAILURE;
}
@@ -392,6 +431,15 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
}
break;
+ case 'V':
+ puts(VERSION_BOILERPLATE("lbximg"));
+ return EXIT_SUCCESS;
+ case 'U':
+ printusage();
+ return EXIT_SUCCESS;
+ case 'H':
+ printhelp();
+ return EXIT_SUCCESS;
case '?':
case ':':
return EXIT_FAILURE;
@@ -403,7 +451,11 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
}
- img = lbximg_fopen(inf);
+ if (fseek(state.f, 0, SEEK_CUR) == 0)
+ img = lbximg_open(state.f, &lbx_default_fops, NULL);
+ else
+ img = lbximg_open(&state, &lbx_pipe_fops, NULL);
+
if (!img) {
errmsg("failed to open image: %s.\n", lbx_strerror());
return EXIT_FAILURE;
@@ -415,19 +467,17 @@ int main(int argc, char **argv)
printf("%s is %ux%u LBX image, %u frame(s)%s%s\n",
name, info.width, info.height, info.nframes,
- info.haspalette ? ", embedded palette" : "",
- info.looping ? ", loops" : "");
+ info.palettesz ? ", embedded palette" : "",
+ info.chunk ? ", chunked" : "",
+ info.looping ? ", loops" : "");
}
switch (mode) {
case MODE_DECODE:
- if (decode(img, palf, overf, &argv[optind])) {
- lbximg_close(img);
- return EXIT_FAILURE;
- }
+ rc = decode(img, palf, overf, &argv[optind]);
break;
}
lbximg_close(img);
- return EXIT_SUCCESS;
+ return rc;
}