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/* Program to convert an image file to inline C data
*
* Copyright (C) 2000 Red Hat, Inc.
*
* Developed by Havoc Pennington <hp@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include "gdk-pixbuf-private.h"
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
void
output_int (FILE *outfile, guint32 num, const char *comment)
{
guchar bytes[4];
/* Note, most significant bytes first */
bytes[0] = num >> 24;
bytes[1] = num >> 16;
bytes[2] = num >> 8;
bytes[3] = num;
fprintf(outfile, " /* %s (%u) */\n 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,\n",
comment, num,
bytes[0], bytes[1], bytes[2], bytes[3]);
}
void
output_bool (FILE *outfile, gboolean val, const char *comment)
{
fprintf(outfile, " /* %s (%s) */\n 0x%.2x,\n",
comment,
val ? "TRUE" : "FALSE",
val ? 1 : 0);
}
void
output_pixbuf (FILE *outfile, gboolean ext_symbols,
const char *varname,
GdkPixbuf *pixbuf)
{
const char *modifier;
const guchar *p;
const guchar *end;
gboolean has_alpha;
int column;
modifier = "static ";
if (ext_symbols)
modifier = "";
fprintf (outfile, "%sconst guchar ", modifier);
fputs (varname, outfile);
fputs ("[] =\n", outfile);
fputs ("{\n", outfile);
p = gdk_pixbuf_get_pixels (pixbuf);
end = p + gdk_pixbuf_get_rowstride (pixbuf) * gdk_pixbuf_get_height (pixbuf);
has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
/* Sync the order of writing with the order of reading in
* gdk-pixbuf-data.c
*/
output_int (outfile, GDK_PIXBUF_INLINE_MAGIC_NUMBER, "File magic");
output_int (outfile, GDK_PIXBUF_INLINE_RAW, "Format of following stuff");
output_int (outfile, gdk_pixbuf_get_rowstride (pixbuf), "Rowstride");
output_int (outfile, gdk_pixbuf_get_width (pixbuf), "Width");
output_int (outfile, gdk_pixbuf_get_height (pixbuf), "Height");
output_bool (outfile, has_alpha, "Has an alpha channel");
output_int (outfile, gdk_pixbuf_get_colorspace (pixbuf), "Colorspace (0 == RGB, no other options implemented)");
output_int (outfile, gdk_pixbuf_get_n_channels (pixbuf), "Number of channels");
output_int (outfile, gdk_pixbuf_get_bits_per_sample (pixbuf), "Bits per sample");
fputs (" /* Image data */\n", outfile);
/* Copy the data in the pixbuf */
column = 0;
while (p != end)
{
guchar r, g, b, a;
r = *p;
++p;
g = *p;
++p;
b = *p;
++p;
if (has_alpha)
{
a = *p;
++p;
}
else
a = 0;
if (has_alpha)
fprintf(outfile, " 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x", r, g, b, a);
else
fprintf(outfile, " 0x%.2x, 0x%.2x, 0x%.2x", r, g, b);
if (p != end)
fputs (",", outfile);
else
fputs ("\n", outfile);
++column;
if (column > 2)
{
fputs ("\n", outfile);
column = 0;
}
}
fputs ("};\n\n", outfile);
}
void
usage (void)
{
fprintf (stderr, "Usage: make-inline-pixbuf [--extern-symbols] OUTFILE varname1 imagefile1 varname2 imagefile2 ...\n");
exit (1);
}
int
main (int argc, char **argv)
{
gboolean ext_symbols = FALSE;
FILE *outfile;
int i;
gdk_pixbuf_init ();
if (argc < 4)
usage ();
i = 1;
if (strcmp (argv[i], "--extern-symbols") == 0)
{
ext_symbols = TRUE;
++i;
if (argc < 5)
usage ();
}
outfile = fopen (argv[i], "w");
if (outfile == NULL)
{
fprintf (stderr, "Failed to open output file `%s': %s\n",
argv[i], strerror (errno));
exit (1);
}
++i;
fputs ("/* This file was automatically generated by the make-inline-pixbuf program.\n"
" * It contains inline RGB image data.\n"
" */\n\n", outfile);
/* Check for matched pairs of images/names */
if (((argc - i) % 2) != 0)
usage ();
while (i < argc)
{
GdkPixbuf *pixbuf;
GError *error;
g_assert ((i + 1) < argc);
error = NULL;
pixbuf = gdk_pixbuf_new_from_file (argv[i+1], &error);
if (pixbuf == NULL)
{
fprintf (stderr, "%s\n", error->message);
exit (1);
}
output_pixbuf (outfile, ext_symbols, argv[i], pixbuf);
gdk_pixbuf_unref (pixbuf);
i += 2;
}
fclose (outfile);
return 0;
}
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