sdocx 1.0.0

Reverse-engineered tooling and SDK for converting Samsung Notes (.sdocx) files
Documentation 
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

use super::super::cell_text_bounds;
use super::*;
use serde::Deserialize;
use sha2::{Digest, Sha256};

#[derive(Deserialize)]
struct Capture {
    apk_version: String,
    apk_sha256: String,
    allocation_fills: Vec<u8>,
    model_library_sha256: String,
    drawing_library_sha256: String,
    base_library_sha256: String,
    widget_library_sha256: String,
    text_library_sha256: String,
    layout_cell_address: String,
    object_layout_address: String,
    split_address: String,
    measurement_inputs: String,
    null_and_uncached_cell_delta_bits: u32,
    cases: Vec<Case>,
}

#[derive(Deserialize)]
struct Case {
    name: String,
    rows: usize,
    columns: usize,
    spans: Vec<[u32; 2]>,
    frames: Vec<[f32; 4]>,
    bands: Vec<Vec<[f32; 4]>>,
    measured_heights: Vec<f32>,
    calls: Vec<Call>,
}

#[derive(Deserialize)]
struct Call {
    slot: usize,
    native_dimensions: [f32; 2],
    text_dimensions: [i32; 2],
    rectangles: Vec<[f32; 4]>,
    height_delta_bits: u32,
}

fn rect([x_min, y_min, x_max, y_max]: [f32; 4]) -> BoundingBox {
    BoundingBox {
        x_min: f64::from(x_min),
        y_min: f64::from(y_min),
        x_max: f64::from(x_max),
        y_max: f64::from(y_max),
    }
}

fn bits(bounds: BoundingBox) -> [u32; 4] {
    [bounds.x_min, bounds.y_min, bounds.x_max, bounds.y_max].map(|value| (value as f32).to_bits())
}

#[test]
fn native_cell_frames_bands_and_integer_text_dimensions_match() {
    let bytes = include_bytes!(concat!(
        env!("CARGO_MANIFEST_DIR"),
        "/../../conformance/table-cell-inputs.json"
    ));
    assert_eq!(
        format!("{:x}", Sha256::digest(bytes)),
        "0e936c9d767d9db6556d62e4298a2aa63435be41e64d8d31d093f93182249020"
    );
    let capture: Capture = serde_json::from_slice(bytes).unwrap();
    assert_eq!(capture.apk_version, "4.4.45.37");
    assert_eq!(
        capture.apk_sha256,
        "daed1eff8c8ee9dfb8afe2771e39e893a8808f3230d6d522a8aa647db09b8667"
    );
    assert_eq!(capture.allocation_fills, [0, 165, 255]);
    assert_eq!(
        capture.model_library_sha256,
        "4fbcf6d4213e929f1535d32abb487743643fd5d0dfc366e50dfeb2e7d8015b7a"
    );
    assert_eq!(
        capture.drawing_library_sha256,
        "788bf413ddeb0b9d352062c5f1b7b8ed11babca911df72691da58ff1a0a5a4bd"
    );
    assert_eq!(
        capture.base_library_sha256,
        "e10da0116946691cf68302437ef261282e1dfe0eec15bf2dfa66093286985deb"
    );
    assert_eq!(
        capture.widget_library_sha256,
        "cfaaccbfd62763f0e514271cc372c0de7b6df41f0d2f991887b8b9584abd1ec9"
    );
    assert_eq!(
        capture.text_library_sha256,
        "5483711673a499743625eb3275e34b37a006919af346212b46b8d8857834308b"
    );
    assert_eq!(capture.layout_cell_address, "0xb06d4");
    assert_eq!(capture.object_layout_address, "0xd3b88");
    assert_eq!(capture.split_address, "0xae794");
    assert_eq!(
        capture.measurement_inputs,
        "supplied cached frames and measured heights; native table and object layout, text shaping and padding assignment intercepted"
    );
    assert_eq!(capture.null_and_uncached_cell_delta_bits, 0);
    assert_eq!(capture.cases.len(), 138);
    let mut calls = 0;
    for case in capture.cases {
        let count = case.rows * case.columns;
        assert_eq!(case.spans.len(), count);
        assert_eq!(case.frames.len(), count);
        assert_eq!(case.bands.len(), count);
        assert_eq!(case.measured_heights.len(), count);
        assert_eq!(case.calls.len(), count);
        for (slot, call) in case.calls.into_iter().enumerate() {
            calls += 1;
            assert_eq!(call.slot, slot);
            let frame = rect(case.frames[slot]);
            let dimensions = [
                native_sub(frame.x_max, frame.x_min).unwrap(),
                native_sub(frame.y_max, frame.y_min).unwrap(),
            ];
            assert_eq!(
                dimensions.map(|value| (value as f32).to_bits()),
                call.native_dimensions.map(f32::to_bits),
                "{}, slot {slot}",
                case.name
            );
            let bounds = cell_text_bounds(frame).unwrap();
            assert_eq!([bounds.x_min, bounds.y_min], [0.0, 0.0]);
            assert_eq!(
                [bounds.x_max, bounds.y_max],
                call.text_dimensions.map(f64::from),
                "{}, slot {slot}",
                case.name
            );
            let local_bands = BandList::new(case.bands[slot].iter().copied().map(rect).collect())
                .unwrap()
                .for_row(frame.y_min)
                .unwrap();
            assert_eq!(
                local_bands
                    .rectangles
                    .into_iter()
                    .map(bits)
                    .collect::<Vec<_>>(),
                call.rectangles
                    .into_iter()
                    .map(|r| r.map(f32::to_bits))
                    .collect::<Vec<_>>(),
                "{}, slot {slot}",
                case.name
            );
            let delta = native_sub(f64::from(case.measured_heights[slot]), dimensions[1]).unwrap();
            assert_eq!(
                (delta as f32).to_bits(),
                call.height_delta_bits,
                "{}, slot {slot}",
                case.name
            );
        }
    }
    assert_eq!(calls, 850);
}