onedrop_parser/
preset.rs

1//! Data structures representing a Milkdrop preset.
2
3use serde::{Deserialize, Serialize};
4use std::collections::HashMap;
5
6/// A complete Milkdrop preset.
7#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
8pub struct MilkPreset {
9    /// Preset version (e.g., 201 for Milkdrop 2.0)
10    pub version: u32,
11
12    /// Pixel shader version for warp shader
13    pub ps_version_warp: u32,
14
15    /// Pixel shader version for composite shader
16    pub ps_version_comp: u32,
17
18    /// Base parameters (static values)
19    pub parameters: PresetParameters,
20
21    /// Per-frame equations (executed once per frame)
22    pub per_frame_equations: Vec<String>,
23
24    /// Per-pixel equations (executed for each pixel)
25    pub per_pixel_equations: Vec<String>,
26
27    /// Initialization equations (executed once when preset loads)
28    pub per_frame_init_equations: Vec<String>,
29
30    /// Custom waveforms (up to 16)
31    pub waves: Vec<WaveCode>,
32
33    /// Custom shapes (up to 16)
34    pub shapes: Vec<ShapeCode>,
35
36    /// Warp shader code (HLSL/GLSL)
37    pub warp_shader: Option<String>,
38
39    /// Composite shader code (HLSL/GLSL)
40    pub comp_shader: Option<String>,
41}
42
43/// Base parameters for a preset (static values).
44#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, Default)]
45pub struct PresetParameters {
46    // Rating and visual adjustments
47    pub f_rating: f32,
48    pub f_gamma_adj: f32,
49    pub f_decay: f32,
50    pub f_video_echo_zoom: f32,
51    pub f_video_echo_alpha: f32,
52    pub n_video_echo_orientation: i32,
53
54    // Wave settings
55    pub n_wave_mode: i32,
56    pub b_additive_waves: bool,
57    pub b_wave_dots: bool,
58    pub b_wave_thick: bool,
59    pub b_mod_wave_alpha_by_volume: bool,
60    pub b_maximize_wave_color: bool,
61    pub f_wave_alpha: f32,
62    pub f_wave_scale: f32,
63    pub f_wave_smoothing: f32,
64    pub f_wave_param: f32,
65    pub f_mod_wave_alpha_start: f32,
66    pub f_mod_wave_alpha_end: f32,
67
68    // Rendering options
69    pub b_tex_wrap: bool,
70    pub b_darken_center: bool,
71    pub b_red_blue_stereo: bool,
72    pub b_brighten: bool,
73    pub b_darken: bool,
74    pub b_solarize: bool,
75    pub b_invert: bool,
76
77    // Warp settings
78    pub f_warp_anim_speed: f32,
79    pub f_warp_scale: f32,
80    pub f_zoom_exponent: f32,
81    pub f_shader: f32,
82
83    // Motion parameters (can be modified by per-frame equations)
84    pub zoom: f32,
85    pub rot: f32,
86    pub cx: f32,
87    pub cy: f32,
88    pub dx: f32,
89    pub dy: f32,
90    pub warp: f32,
91    pub sx: f32,
92    pub sy: f32,
93
94    // Wave color
95    pub wave_r: f32,
96    pub wave_g: f32,
97    pub wave_b: f32,
98    pub wave_x: f32,
99    pub wave_y: f32,
100
101    // Outer border
102    pub ob_size: f32,
103    pub ob_r: f32,
104    pub ob_g: f32,
105    pub ob_b: f32,
106    pub ob_a: f32,
107
108    // Inner border
109    pub ib_size: f32,
110    pub ib_r: f32,
111    pub ib_g: f32,
112    pub ib_b: f32,
113    pub ib_a: f32,
114
115    // Motion vectors
116    pub n_motion_vectors_x: f32,
117    pub n_motion_vectors_y: f32,
118    pub mv_dx: f32,
119    pub mv_dy: f32,
120    pub mv_l: f32,
121    pub mv_r: f32,
122    pub mv_g: f32,
123    pub mv_b: f32,
124    pub mv_a: f32,
125
126    // Beat detection parameters
127    pub b1n: f32,
128    pub b2n: f32,
129    pub b3n: f32,
130    pub b1x: f32,
131    pub b2x: f32,
132    pub b3x: f32,
133    pub b1ed: f32,
134
135    // Additional parameters stored as key-value pairs
136    pub extra: HashMap<String, String>,
137}
138
139impl PresetParameters {
140    // Compatibility getters for engine (without prefixes)
141    pub fn zoomexp(&self) -> f32 {
142        self.f_zoom_exponent
143    }
144    pub fn decay(&self) -> f32 {
145        self.f_decay
146    }
147    pub fn gamma(&self) -> f32 {
148        self.f_gamma_adj
149    }
150    pub fn echo_zoom(&self) -> f32 {
151        self.f_video_echo_zoom
152    }
153    pub fn echo_alpha(&self) -> f32 {
154        self.f_video_echo_alpha
155    }
156    pub fn wave_mode(&self) -> i32 {
157        self.n_wave_mode
158    }
159    pub fn wave_a(&self) -> f32 {
160        self.f_wave_alpha
161    }
162    pub fn darken_center(&self) -> bool {
163        self.b_darken_center
164    }
165    pub fn wrap(&self) -> bool {
166        self.b_tex_wrap
167    }
168    pub fn invert(&self) -> bool {
169        self.b_invert
170    }
171    pub fn brighten(&self) -> bool {
172        self.b_brighten
173    }
174    pub fn darken(&self) -> bool {
175        self.b_darken
176    }
177    pub fn solarize(&self) -> bool {
178        self.b_solarize
179    }
180}
181
182/// Custom waveform definition.
183#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
184pub struct WaveCode {
185    pub index: usize,
186    pub enabled: bool,
187    pub samples: i32,
188    pub sep: i32,
189    pub b_spectrum: bool,
190    pub b_use_dots: bool,
191    pub b_draw_thick: bool,
192    pub b_additive: bool,
193    pub scaling: f32,
194    pub smoothing: f32,
195    pub r: f32,
196    pub g: f32,
197    pub b: f32,
198    pub a: f32,
199
200    /// Per-frame equations for this wave
201    pub per_frame_equations: Vec<String>,
202
203    /// Per-point equations for this wave
204    pub per_point_equations: Vec<String>,
205
206    /// Initialization equations for this wave
207    pub per_frame_init_equations: Vec<String>,
208}
209
210/// Custom shape definition.
211#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
212pub struct ShapeCode {
213    pub index: usize,
214    pub enabled: bool,
215    pub sides: i32,
216    pub additive: bool,
217    pub thick_outline: bool,
218    pub textured: bool,
219    pub num_inst: i32,
220    pub x: f32,
221    pub y: f32,
222    pub rad: f32,
223    pub ang: f32,
224    pub tex_ang: f32,
225    pub tex_zoom: f32,
226    pub r: f32,
227    pub g: f32,
228    pub b: f32,
229    pub a: f32,
230    pub r2: f32,
231    pub g2: f32,
232    pub b2: f32,
233    pub a2: f32,
234    pub border_r: f32,
235    pub border_g: f32,
236    pub border_b: f32,
237    pub border_a: f32,
238
239    /// Per-frame equations for this shape
240    pub per_frame_equations: Vec<String>,
241
242    /// Initialization equations for this shape
243    pub per_frame_init_equations: Vec<String>,
244}
245
246impl Default for MilkPreset {
247    fn default() -> Self {
248        Self {
249            version: 201,
250            ps_version_warp: 2,
251            ps_version_comp: 2,
252            parameters: PresetParameters::default(),
253            per_frame_equations: Vec::new(),
254            per_pixel_equations: Vec::new(),
255            per_frame_init_equations: Vec::new(),
256            waves: Vec::new(),
257            shapes: Vec::new(),
258            warp_shader: None,
259            comp_shader: None,
260        }
261    }
262}
onedrop_parser/preset.rs

onedrop_parser/
preset.rs
