1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib/gprintf.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)
{
g_printf (",\n ");
online = 0;
}
else if (online)
{
g_printf (",");
}
g_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;
g_printf ("static const guchar %s_%s_bits[] = {\n", base_name, part_name);
g_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;
}
g_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)
{
g_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)
{
g_fprintf (stderr, "%s: cannot open file '%s': %s\n", progname, argv[1], error->message);
exit (1);
}
if (gdk_pixbuf_get_width (pixbuf) < PART_LAST)
{
g_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)
{
g_fprintf (stderr, "%s: source image must be at least 1 pixel height\n", progname);
exit (1);
}
g_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;
}
|
