rassa_core/
lib.rs

1pub mod ass {
2    pub const LIBASS_VERSION: i32 = 0x0170_4000;
3
4    pub const VALIGN_SUB: i32 = 0;
5    pub const VALIGN_CENTER: i32 = 8;
6    pub const VALIGN_TOP: i32 = 4;
7    pub const HALIGN_LEFT: i32 = 1;
8    pub const HALIGN_CENTER: i32 = 2;
9    pub const HALIGN_RIGHT: i32 = 3;
10    pub const ASS_JUSTIFY_AUTO: i32 = 0;
11    pub const ASS_JUSTIFY_LEFT: i32 = 1;
12    pub const ASS_JUSTIFY_CENTER: i32 = 2;
13    pub const ASS_JUSTIFY_RIGHT: i32 = 3;
14
15    pub const FONT_WEIGHT_LIGHT: i32 = 300;
16    pub const FONT_WEIGHT_MEDIUM: i32 = 400;
17    pub const FONT_WEIGHT_BOLD: i32 = 700;
18    pub const FONT_SLANT_NONE: i32 = 0;
19    pub const FONT_SLANT_ITALIC: i32 = 100;
20    pub const FONT_SLANT_OBLIQUE: i32 = 110;
21    pub const FONT_WIDTH_CONDENSED: i32 = 75;
22    pub const FONT_WIDTH_NORMAL: i32 = 100;
23    pub const FONT_WIDTH_EXPANDED: i32 = 125;
24
25    #[repr(i32)]
26    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Hash)]
27    pub enum Hinting {
28        #[default]
29        None = 0,
30        Light = 1,
31        Normal = 2,
32        Native = 3,
33    }
34
35    #[repr(i32)]
36    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
37    pub enum ShapingLevel {
38        Simple = 0,
39        #[default]
40        Complex = 1,
41    }
42
43    #[repr(i32)]
44    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
45    pub enum DefaultFontProvider {
46        #[default]
47        None = 0,
48        Autodetect = 1,
49        CoreText = 2,
50        Fontconfig = 3,
51        DirectWrite = 4,
52    }
53
54    #[repr(i32)]
55    #[derive(Clone, Copy, Debug, PartialEq, Eq)]
56    pub enum Feature {
57        IncompatibleExtensions = 0,
58        BidiBrackets = 1,
59        WholeTextLayout = 2,
60        WrapUnicode = 3,
61    }
62
63    pub mod override_bits {
64        pub const DEFAULT: i32 = 0;
65        pub const STYLE: i32 = 1 << 0;
66        pub const SELECTIVE_FONT_SCALE: i32 = 1 << 1;
67        pub const FONT_SIZE: i32 = 1 << 1;
68        pub const FONT_SIZE_FIELDS: i32 = 1 << 2;
69        pub const FONT_NAME: i32 = 1 << 3;
70        pub const COLORS: i32 = 1 << 4;
71        pub const ATTRIBUTES: i32 = 1 << 5;
72        pub const BORDER: i32 = 1 << 6;
73        pub const ALIGNMENT: i32 = 1 << 7;
74        pub const MARGINS: i32 = 1 << 8;
75        pub const FULL_STYLE: i32 = 1 << 9;
76        pub const JUSTIFY: i32 = 1 << 10;
77        pub const BLUR: i32 = 1 << 11;
78    }
79
80    #[repr(i32)]
81    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
82    pub enum YCbCrMatrix {
83        #[default]
84        Default = 0,
85        Unknown = 1,
86        None = 2,
87        Bt601Tv = 3,
88        Bt601Pc = 4,
89        Bt709Tv = 5,
90        Bt709Pc = 6,
91        Smpte240mTv = 7,
92        Smpte240mPc = 8,
93        FccTv = 9,
94        FccPc = 10,
95    }
96
97    #[repr(i32)]
98    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
99    pub enum TrackType {
100        #[default]
101        Unknown = 0,
102        Ass = 1,
103        Ssa = 2,
104    }
105
106    #[repr(i32)]
107    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
108    pub enum ImageType {
109        #[default]
110        Character = 0,
111        Outline = 1,
112        Shadow = 2,
113    }
114}
115
116#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
117pub struct Point {
118    pub x: i32,
119    pub y: i32,
120}
121
122#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
123pub struct Size {
124    pub width: i32,
125    pub height: i32,
126}
127
128#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
129pub struct Rect {
130    pub x_min: i32,
131    pub y_min: i32,
132    pub x_max: i32,
133    pub y_max: i32,
134}
135
136impl Rect {
137    pub fn width(self) -> i32 {
138        (self.x_max - self.x_min).max(0)
139    }
140
141    pub fn height(self) -> i32 {
142        (self.y_max - self.y_min).max(0)
143    }
144
145    pub fn is_empty(self) -> bool {
146        self.width() <= 0 || self.height() <= 0
147    }
148
149    pub fn intersect(self, other: Self) -> Option<Self> {
150        let rect = Self {
151            x_min: self.x_min.max(other.x_min),
152            y_min: self.y_min.max(other.y_min),
153            x_max: self.x_max.min(other.x_max),
154            y_max: self.y_max.min(other.y_max),
155        };
156        (!rect.is_empty()).then_some(rect)
157    }
158}
159
160#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
161pub struct Margins {
162    pub top: i32,
163    pub bottom: i32,
164    pub left: i32,
165    pub right: i32,
166}
167
168#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
169pub struct RgbaColor(pub u32);
170
171#[derive(Clone, Debug, Default, PartialEq, Eq)]
172pub struct ImagePlane {
173    pub size: Size,
174    pub stride: i32,
175    pub color: RgbaColor,
176    pub destination: Point,
177    pub kind: ass::ImageType,
178    pub bitmap: Vec<u8>,
179}
180
181#[derive(Clone, Debug, Default, PartialEq)]
182pub struct RendererConfig {
183    pub frame: Size,
184    pub storage: Size,
185    pub margins: Margins,
186    pub use_margins: bool,
187    pub pixel_aspect: f64,
188    pub font_scale: f64,
189    pub line_spacing: f64,
190    pub line_position: f64,
191    pub hinting: ass::Hinting,
192    pub shaping: ass::ShapingLevel,
193}
194
195#[derive(Clone, Debug, PartialEq, Eq)]
196pub struct RassaError {
197    message: String,
198}
199
200impl RassaError {
201    pub fn new(message: impl Into<String>) -> Self {
202        Self {
203            message: message.into(),
204        }
205    }
206
207    pub fn message(&self) -> &str {
208        &self.message
209    }
210}
211
212impl std::fmt::Display for RassaError {
213    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
214        formatter.write_str(&self.message)
215    }
216}
217
218impl std::error::Error for RassaError {}
219
220pub type RassaResult<T> = Result<T, RassaError>;
rassa_core/lib.rs

rassa_core/
lib.rs
