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#include <gdk-pixbuf/gdk-pixbuf.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define BYTES_PER_OUTPUT_LINE 15
static gint
output_byte (guchar byte,
gint online)
{
if (online == BYTES_PER_OUTPUT_LINE)
{
printf (",\n ");
online = 0;
}
else if (online)
{
printf (",");
}
printf ("0x%02x", byte);
return online + 1;
}
static void
do_part (GdkPixbuf *pixbuf,
gint part1_index,
gint part2_index,
gint part3_index,
const char *base_name,
const char *part_name)
{
const guchar *pixels = gdk_pixbuf_get_pixels (pixbuf);
const guchar *color1;
const guchar *color2;
const guchar *color3;
gint rowstride = gdk_pixbuf_get_rowstride (pixbuf);
gint n_channels = gdk_pixbuf_get_n_channels (pixbuf);
gint width = gdk_pixbuf_get_width (pixbuf);
gint height = gdk_pixbuf_get_height (pixbuf);
gint online = 0;
color1 = pixels + part1_index * n_channels;
color2 = pixels + part2_index * n_channels;
color3 = pixels + part3_index * n_channels;
pixels += rowstride;
printf ("static guchar %s_%s_bits[] = {\n", base_name, part_name);
printf (" ");
while (height--)
{
guchar bit = 1;
guchar byte = 0;
const guchar *p = pixels;
gint n = width;
while (n--)
{
if ((part1_index >= 0 && memcmp (p, color1, n_channels) == 0) ||
(part2_index >= 0 && memcmp (p, color2, n_channels) == 0) ||
(part3_index >= 0 && memcmp (p, color3, n_channels) == 0))
byte |= bit;
if (bit == 0x80)
{
online = output_byte (byte, online);
byte = 0;
bit = 1;
}
else
bit <<= 1;
p += n_channels;
}
if (width & 7) /* a leftover partial byte */
online = output_byte (byte, online);
pixels += rowstride;
}
printf ("};\n");
}
typedef enum {
PART_BLACK,
PART_DARK,
PART_MID,
PART_LIGHT,
PART_TEXT,
PART_TEXT_AA,
PART_BASE,
PART_LAST
} Part;
const char *part_names[PART_LAST] = {
"black",
"dark",
"mid",
"light",
"text",
"aa",
"base",
};
int main (int argc, char **argv)
{
gchar *progname = g_path_get_basename (argv[0]);
GdkPixbuf *pixbuf;
GError *error = NULL;
gint i;
if (argc != 3)
{
fprintf (stderr, "%s: Usage: %s FILE BASE\n", progname, progname);
exit (1);
}
g_type_init ();
pixbuf = gdk_pixbuf_new_from_file (argv[1], &error);
if (!pixbuf)
{
fprintf (stderr, "%s: cannot open file '%s': %s\n", progname, argv[1], error->message);
exit (1);
}
if (gdk_pixbuf_get_width (pixbuf) < PART_LAST)
{
fprintf (stderr, "%s: source image must be at least %d pixels wide\n", progname, PART_LAST);
exit (1);
}
if (gdk_pixbuf_get_height (pixbuf) < 1)
{
fprintf (stderr, "%s: source image must be at least 1 pixel height\n", progname);
exit (1);
}
printf ("/*\n * Extracted from %s, width=%d, height=%d\n */\n", argv[1],
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf) - 1);
for (i = 0; i < PART_LAST; i++)
{
/* As a bit of a hack, we want the base image to extend over the text
* and text_aa parts so that we can draw the image either with or without
* the indicator
*/
if (i == PART_BASE)
do_part (pixbuf, PART_BASE, PART_TEXT_AA, PART_TEXT, argv[2], part_names[i]);
else
do_part (pixbuf, i, -1, -1, argv[2], part_names[i]);
}
return 0;
}
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