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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
use std::{fs::File, io::Write};
use gifed::{
block::{
extension::{Extension, GraphicControl},
BlockedImage, ColorTable, Version,
},
reader::GifReader,
writer::{GifBuilder, ImageBuilder},
Color,
};
use owo_colors::OwoColorize;
fn main() {
write_test();
//return;
let gif = GifReader::file("test.gif");
//let gif = GifReader::file("/home/gen/Downloads/tas_tillie.gif");
println!("Version {}", gif.header.yellow());
println!(
"Logical Screen Descriptor\n\tDimensions {}x{}",
gif.screen_descriptor.width.yellow(),
gif.screen_descriptor.height.yellow()
);
if gif.screen_descriptor.color_table_present() {
println!(
"\tGlobal Color Table Present {}\n\tGlobal Color Table Size {}",
"Yes".green(),
gif.screen_descriptor.color_table_len().green()
);
} else {
println!(
"\tGlobal Color Table Present {}\n\tGlobal Color Table Size {}",
"No".red(),
gif.screen_descriptor.color_table_len().red()
);
}
for block in gif.blocks {
match block {
gifed::block::Block::IndexedImage(_) => todo!(),
gifed::block::Block::BlockedImage(bli) => describe_blocked_image(bli),
gifed::block::Block::Extension(ext) => match ext {
gifed::block::extension::Extension::GraphicControl(gce) => {
println!(
"Graphic Control Extension\n\tDelay Time {}",
format!("{}s", gce.delay_time() as f32 / 100.0).yellow()
)
}
gifed::block::extension::Extension::Looping(_) => todo!(),
gifed::block::extension::Extension::Comment(cmt) => {
println!("Comment Extension\n\tLength {}", cmt.len())
}
gifed::block::extension::Extension::Application(app) => {
let auth = app.authentication_code();
println!("Application Extension\n\tIdentifier {}\n\tAuthentication {:02X} {:02X} {:02X}",app.identifier().yellow(), auth[0].yellow(), auth[1].yellow(), auth[2].yellow());
}
},
}
}
}
fn describe_blocked_image(bli: BlockedImage) {
println!(
"Image\n\tOffset {}x{}\n\tDimensions {}x{}",
bli.image_descriptor.left.yellow(),
bli.image_descriptor.top.yellow(),
bli.image_descriptor.width.yellow(),
bli.image_descriptor.height.yellow(),
);
if bli.image_descriptor.color_table_present() {
println!(
"\tLocal Color Table Present {}\n\tLocal Color Table Size {}",
"Yes".green(),
bli.image_descriptor.color_table_size().green()
);
} else {
println!(
"\tLocal Color Table Present {}\n\tLocal Color Table Size {}",
"No".red(),
bli.image_descriptor.color_table_size().red()
);
}
println!(
"\t{} image data sub-blocks totaling {} bytes",
bli.blocks.len().yellow(),
bli.blocks
.iter()
.map(|vec| vec.len())
.sum::<usize>()
.yellow()
)
}
fn write_test() {
const size: u16 = 256;
let gcon = GraphicControl::new(
gifed::block::extension::DisposalMethod::Clear,
false,
false,
25,
0,
);
let mut gct = ColorTable::new();
gct.push(Color {
r: 0x44,
g: 0x44,
b: 0x44,
});
gct.push(Color {
r: 0x88,
g: 0x44,
b: 0xDD,
});
println!("{} {}", gct.packed_len(), gct.len());
let mut builder = GifBuilder::new(Version::Gif89a, size, size).global_color_table(gct);
for x in 4..16 {
let mut raw = vec![0; size as usize * size as usize];
for i in x * 7..x * 7 + 32 {
for j in x * 7..x * 7 + 32 {
let index = i * size as usize + j;
raw[index as usize] = 1;
}
}
builder = builder
.extension(Extension::GraphicControl(gcon.clone()))
.image(ImageBuilder::new(size, size).indicies(raw));
}
builder = builder.extension(Extension::Looping(0));
let vec = builder.build().to_vec();
File::create("test.gif").unwrap().write_all(&vec).unwrap();
let mut text_gif = File::create("test_gif.txt").unwrap();
for byte in vec {
text_gif
.write_all(&format!("{:02X} ", byte).as_bytes())
.unwrap();
}
}
fn write_static_test() {
const size: u16 = 256;
let mut gct = ColorTable::new();
gct.push(Color {
r: 0x44,
g: 0x44,
b: 0x44,
});
gct.push(Color {
r: 0x55,
g: 0x44,
b: 0x88,
});
println!("{} {}", gct.packed_len(), gct.len());
let mut builder = GifBuilder::new(Version::Gif87a, size, size).global_color_table(gct);
let x = 4;
let mut raw = vec![0; size as usize * size as usize];
for i in x * 7..x * 7 + 8 {
for j in x * 7..x * 7 + 8 {
let index = i * size as usize + j;
raw[index as usize] = 1;
}
}
builder = builder.image(ImageBuilder::new(size, size).indicies(raw));
//builder = builder.extension(Extension::Looping(0));
let vec = builder.build().to_vec();
File::create("test.gif").unwrap().write_all(&vec).unwrap();
let mut text_gif = File::create("test_gif.txt").unwrap();
for byte in vec {
text_gif
.write_all(&format!("{:02X} ", byte).as_bytes())
.unwrap();
}
}
|
