blob: 56866bb79545561e7ea7257d35b5155bb631163d (
plain) (
blame)
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
|
#!/bin/bash
# Taken from: http://billauer.co.il/blog/2009/07/gimp-xcf-jpg-jpeg-convert-bash-script/
SELFNAME=$(basename $0)
SIZE=800
QUALITY=95
OVERWRITE=0
OUTPUT_DIR=
GIMP="gimp"
die()
{
printf "%s\n" "$1" >&2
exit 1
}
print_help()
{
cat >&2 << EOF
Usage: ./$SELFNAME [OPTION]... [FILE]...
Convert XCF images to JPEG.
Options:
-s, --size size in pixels of biggest size of image (default: $SIZE)
-q, --quality JPEG image quality in percents (0-100) (default: $QUALITY)
-f, --force force convert, even if result file exists
-h, --help print this help
--output-dir name of output directory where place files. By default files
placed in same directory with source.
Example:
Convert all XCF files in directory
./$SELFNAME *.xcf
Convert XCF file to 900px image
./$SELFNAME -s 900 image.xcf
EOF
}
while [[ $1 = -* ]]
do
case "$1" in
-s|--size)
SIZE="$2"
[[ "$SIZE" -gt 0 ]] || die "Error: Size not integer: $SIZE"
shift
;;
-q|--quality)
QUALITY="$2"
[[ "$QUALITY" -gt 0 && "$QUALITY" -le 100 ]] || die "Error: Quality not percent: $QUALITY"
shift
;;
-h|--help)
print_help
exit
;;
-f|--force)
OVERWRITE=1
;;
--output-dir)
OUTPUT_DIR="$2"
shift
;;
*)
die "Error: Unknown option: $1"
;;
esac
shift
done
RATE_STEP=${RATE_STEP:=.7}
{
cat << EOF
(define (resize image size)
(let* (
(rate-step $RATE_STEP)
(cur-width (car (gimp-image-width image)))
(cur-height (car (gimp-image-height image)))
)
(while (> (max cur-width cur-height) $SIZE)
(if (< (max (* cur-width rate-step) (* cur-height rate-step)) $SIZE)
(set! rate-step (min (/ $SIZE cur-height) (/ $SIZE cur-width)))
1
)
(set! cur-width (* cur-width rate-step))
(set! cur-height (* cur-height rate-step))
(gimp-image-scale image cur-width cur-height)
)
)
)
(define (convert-xcf-to-jpeg filename outfile)
(let* (
(image (car (gimp-file-load RUN-NONINTERACTIVE filename filename)))
(drawable (car (gimp-image-merge-visible-layers image CLIP-TO-IMAGE)))
)
(resize image $SIZE)
(file-jpeg-save RUN-NONINTERACTIVE image drawable outfile outfile (/ $QUALITY 100) 0 0 0 " " 0 1 0 1)
(gimp-image-delete image) ; ... or memory will explode
)
)
(gimp-message-set-handler 1) ; Message to standart output
EOF
for file
do
FILENAME=$file
OUT_FILENAME=${FILENAME%%.xcf}.jpg
if [[ -n "$OUTPUT_DIR" ]]
then
OUT_FILENAME="$OUTPUT_DIR/$(basename "$OUT_FILENAME")"
fi
if [[ $OVERWRITE = 0 && -f "$OUT_FILENAME" ]]
then
printf "Warning: File $OUT_FILENAME exists, skipping.\n" >&2
return
fi
echo "(convert-xcf-to-jpeg \"$FILENAME\" \"$OUT_FILENAME\")"
done
echo "(gimp-quit 0)"
} | "$GIMP" -i -b -
|
