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| 1 | //! Rigid equipment, portable embedded assets and a bounded binary container. |
| 2 | //! Local rotation uses Rz * Ry * Rx (degrees); attachment uses the animated |
| 3 | //! joint world transform, never a skin matrix or inverse bind a second time. |
| 4 | |
| 5 | use std::collections::BTreeSet; |
| 6 | use std::io::{Cursor, Read, Write}; |
| 7 | use std::path::Path; |
| 8 | |
| 9 | use crate::preview::{ |
| 10 | animated_joint_world, identity, joint_paths, mul, Mat4, PreviewCharacter, PreviewControls, |
| 11 | }; |
| 12 | use crate::project::portable_relative; |
| 13 | use serde::{Deserialize, Serialize}; |
| 14 | |
| 15 | pub const MAGIC: &[u8; 8] = b"PPEQ\r\n\x1a\n"; |
| 16 | /// Container version written; versions 1–3 (shared rigid offsets) still load. |
| 17 | pub const VERSION: u32 = 4; |
| 18 | pub const MAX_FILE: usize = 32 * 1024 * 1024; |
| 19 | const MAX_META: usize = 4 * 1024 * 1024; |
| 20 | const MAX_ASSET: usize = 8 * 1024 * 1024; |
| 21 | const MAX_ASSETS: usize = 32; |
| 22 | pub(crate) const MAX_VERTICES: usize = 80_000; |
| 23 | /// Vertex budget when the rigid readers load a static (unskinned) *body*; |
| 24 | /// same ceiling as the FBX body loader. |
| 25 | pub(crate) const MAX_STATIC_BODY_VERTICES: usize = 1_000_000; |
| 26 | |
| 27 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] |
| 28 | #[serde(deny_unknown_fields)] |
| 29 | pub struct EmbeddedAsset { |
| 30 | pub path: String, |
| 31 | #[serde(skip)] |
| 32 | pub bytes: Vec<u8>, |
| 33 | } |
| 34 | |
| 35 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] |
| 36 | #[serde(deny_unknown_fields)] |
| 37 | pub struct Mesh { |
| 38 | pub positions: Vec<[f32; 3]>, |
| 39 | pub normals: Vec<[f32; 3]>, |
| 40 | pub uvs: Vec<[f32; 2]>, |
| 41 | pub indices: Vec<u32>, |
| 42 | pub color: [f32; 4], |
| 43 | pub albedo: Option<usize>, |
| 44 | /// Skinned part: the equipment bone whose rest space holds the vertices. |
| 45 | #[serde(default, skip_serializing_if = "Option::is_none")] |
| 46 | pub bone: Option<usize>, |
| 47 | } |
| 48 | |
| 49 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] |
| 50 | #[serde(deny_unknown_fields)] |
| 51 | pub struct RigSignature { |
| 52 | pub paths: Vec<String>, |
| 53 | pub rest_world: Vec<Mat4>, |
| 54 | } |
| 55 | impl RigSignature { |
| 56 | pub fn of(body: &PreviewCharacter) -> Self { |
| 57 | Self { |
| 58 | paths: joint_paths(body), |
| 59 | rest_world: (0..body.joint_nodes.len()) |
| 60 | .map(|j| animated_joint_world(body, "", 0.0, j).unwrap_or_else(identity)) |
| 61 | .collect(), |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] |
| 67 | #[serde(deny_unknown_fields)] |
| 68 | pub struct Attachment { |
| 69 | pub label: String, |
| 70 | /// Original OBJ/MTL/dependency payloads owned by this attachment. |
| 71 | pub source_assets: Vec<usize>, |
| 72 | pub bones: [Option<String>; 2], |
| 73 | /// Per sex: rigid (single-bone) attach offset. |
| 74 | pub translation: [[f32; 3]; 2], |
| 75 | /// Per sex: rigid (single-bone) Euler degrees, Rz·Ry·Rx. |
| 76 | pub rotation_deg: [[f32; 3]; 2], |
| 77 | pub meshes: Vec<Mesh>, |
| 78 | pub shiny: Option<usize>, |
| 79 | pub specular: f32, |
| 80 | /// Skeleton of a skinned part (Tim t1027u); `None` for rigid parts. |
| 81 | #[serde(default, skip_serializing_if = "Option::is_none")] |
| 82 | pub skeleton: Option<crate::equipment_rig::Skeleton>, |
| 83 | /// Per sex: equipment bone → character bone links of a skinned part. |
| 84 | #[serde(default, skip_serializing_if = "crate::equipment_rig::links_empty")] |
| 85 | pub bone_links: [Vec<crate::equipment_rig::BoneLink>; 2], |
| 86 | } |
| 87 | |
| 88 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] |
| 89 | #[serde(deny_unknown_fields)] |
| 90 | pub struct Preset { |
| 91 | pub name: String, |
| 92 | pub provenance: String, |
| 93 | pub applies: [bool; 2], |
| 94 | pub rigs: [Option<RigSignature>; 2], |
| 95 | pub attachments: Vec<Attachment>, |
| 96 | pub assets: Vec<EmbeddedAsset>, |
| 97 | /// Semi-transparency allowed for this layer (t1031u; default off = binary alpha). |
| 98 | #[serde(default)] |
| 99 | pub semi_transparency: bool, |
| 100 | } |
| 101 | impl Preset { |
| 102 | pub fn new(name: String) -> Self { |
| 103 | Self { |
| 104 | name, |
| 105 | provenance: String::new(), |
| 106 | applies: [true, true], |
| 107 | rigs: [None, None], |
| 108 | attachments: Vec::new(), |
| 109 | assets: Vec::new(), |
| 110 | semi_transparency: false, |
| 111 | } |
| 112 | } |
| 113 | pub fn bind( |
| 114 | &mut self, |
| 115 | sex: usize, |
| 116 | body: &PreviewCharacter, |
| 117 | attachment: usize, |
| 118 | joint: usize, |
| 119 | ) -> Result<(), String> { |
| 120 | if sex > 1 { |
| 121 | return Err("ongeldig geslacht".into()); |
| 122 | } |
| 123 | let paths = joint_paths(body); |
| 124 | let path = paths.get(joint).ok_or("dit bot bestaat niet")?.clone(); |
| 125 | let item = self |
| 126 | .attachments |
| 127 | .get_mut(attachment) |
| 128 | .ok_or("dit onderdeel bestaat niet")?; |
| 129 | item.bones[sex] = Some(path); |
| 130 | self.rigs[sex] = Some(RigSignature::of(body)); |
| 131 | let paths = &self.rigs[sex].as_ref().unwrap().paths; |
| 132 | for a in &mut self.attachments { |
| 133 | a.bone_links[sex].retain(|l| paths.contains(&l.target)); |
| 134 | } |
| 135 | Ok(()) |
| 136 | } |
| 137 | |
| 138 | /// Whether this part already has a bone mapping for `sex`. |
| 139 | pub fn attachment_mapped(attachment: &Attachment, sex: usize) -> bool { |
| 140 | if sex > 1 { |
| 141 | return false; |
| 142 | } |
| 143 | if attachment.skeleton.is_some() { |
| 144 | !attachment.bone_links[sex].is_empty() |
| 145 | } else { |
| 146 | attachment.bones[sex].is_some() |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | /// Copy bone mappings and offsets from `from_sex` onto `to_sex` for parts |
| 151 | /// that have no mapping on `to_sex` yet. Destination joints are taken from |
| 152 | /// `to_body` when the source joint name also exists there. |
| 153 | pub fn copy_gender_mapping( |
| 154 | &mut self, |
| 155 | from_sex: usize, |
| 156 | to_sex: usize, |
| 157 | to_body: &PreviewCharacter, |
| 158 | ) -> Result<CopyGenderMapping, String> { |
| 159 | copy_gender_mapping(self, from_sex, to_sex, to_body) |
| 160 | } |
| 161 | |
| 162 | pub fn validate(&self) -> Result<(), String> { |
| 163 | self.validate_with(MAX_VERTICES) |
| 164 | } |
| 165 | fn validate_with(&self, max_vertices: usize) -> Result<(), String> { |
| 166 | if !valid_name(&self.name) { |
| 167 | return Err( |
| 168 | "equipmentnaam: kleine letters/cijfers/-/_, geen spaties, en niet 'body'".into(), |
| 169 | ); |
| 170 | } |
| 171 | if self.provenance.len() > 4096 || self.provenance.contains('\0') { |
| 172 | return Err("herkomst/licentie is te lang of bevat NUL".into()); |
| 173 | } |
| 174 | if !self.applies.iter().any(|x| *x) { |
| 175 | return Err("kies minstens één geslacht".into()); |
| 176 | } |
| 177 | if self.attachments.len() > 32 || self.assets.len() > MAX_ASSETS { |
| 178 | return Err("te veel onderdelen of bestanden".into()); |
| 179 | } |
| 180 | let mut paths = BTreeSet::new(); |
| 181 | let mut total = 0usize; |
| 182 | for asset in &self.assets { |
| 183 | portable_relative(&asset.path)?; |
| 184 | if asset.path.len() > 240 || asset.bytes.len() > MAX_ASSET || !paths.insert(&asset.path) |
| 185 | { |
| 186 | return Err("ongeldige, dubbele of te grote asset".into()); |
| 187 | } |
| 188 | total = total |
| 189 | .checked_add(asset.bytes.len()) |
| 190 | .ok_or("te veel assetdata")?; |
| 191 | } |
| 192 | if total > MAX_FILE { |
| 193 | return Err("te veel assetdata".into()); |
| 194 | } |
| 195 | let mut texture_indices = BTreeSet::new(); |
| 196 | let mut vertices = 0; |
| 197 | for rig in self.rigs.iter().flatten() { |
| 198 | if rig.paths.len() > 128 |
| 199 | || rig.paths.len() != rig.rest_world.len() |
| 200 | || rig.paths.iter().any(|p| p.len() > 4096) |
| 201 | || rig.rest_world.iter().flatten().any(|x| !x.is_finite()) |
| 202 | { |
| 203 | return Err("ongeldige rigbinding".into()); |
| 204 | } |
| 205 | } |
| 206 | for attachment in &self.attachments { |
| 207 | if attachment.source_assets.len() > MAX_ASSETS |
| 208 | || attachment |
| 209 | .source_assets |
| 210 | .iter() |
| 211 | .any(|i| *i >= self.assets.len()) |
| 212 | { |
| 213 | return Err("ongeldige bronassetverwijzing".into()); |
| 214 | } |
| 215 | for sex in 0..2 { |
| 216 | if let Some(path) = &attachment.bones[sex] { |
| 217 | if !self.rigs[sex] |
| 218 | .as_ref() |
| 219 | .map(|rig| rig.paths.contains(path)) |
| 220 | .unwrap_or(false) |
| 221 | { |
| 222 | return Err("attachment verwijst naar onbekend bot".into()); |
| 223 | } |
| 224 | } |
| 225 | } |
| 226 | if attachment.label.len() > 128 |
| 227 | || attachment.bones.iter().flatten().any(|p| p.len() > 4096) |
| 228 | || attachment |
| 229 | .translation |
| 230 | .iter() |
| 231 | .flatten() |
| 232 | .chain(attachment.rotation_deg.iter().flatten()) |
| 233 | .any(|x| !x.is_finite() || x.abs() > 100_000.0) |
| 234 | || !attachment.specular.is_finite() |
| 235 | || !(0.0..=1.0).contains(&attachment.specular) |
| 236 | || (attachment.skeleton.is_none() && attachment.meshes.len() > 64) |
| 237 | { |
| 238 | return Err("ongeldige attachment/transformatie".into()); |
| 239 | } |
| 240 | crate::equipment_rig::validate_part(attachment, &self.rigs)?; |
| 241 | if let Some(index) = attachment.shiny { |
| 242 | texture_indices.insert(index); |
| 243 | } |
| 244 | for mesh in &attachment.meshes { |
| 245 | vertices += mesh.positions.len(); |
| 246 | if vertices > max_vertices |
| 247 | || mesh.indices.len() > max_vertices * 6 |
| 248 | || mesh.indices.len() < 3 |
| 249 | || mesh.indices.len() % 3 != 0 |
| 250 | || mesh.positions.len() != mesh.normals.len() |
| 251 | || mesh.positions.len() != mesh.uvs.len() |
| 252 | || mesh.positions.is_empty() |
| 253 | || mesh |
| 254 | .indices |
| 255 | .iter() |
| 256 | .any(|i| *i as usize >= mesh.positions.len()) |
| 257 | || mesh |
| 258 | .positions |
| 259 | .iter() |
| 260 | .flatten() |
| 261 | .chain(mesh.normals.iter().flatten()) |
| 262 | .chain(mesh.uvs.iter().flatten()) |
| 263 | .chain(mesh.color.iter()) |
| 264 | .any(|x| !x.is_finite() || x.abs() > 1_000_000.0) |
| 265 | { |
| 266 | return Err("ongeldige of te grote equipmentmesh".into()); |
| 267 | } |
| 268 | if let Some(index) = mesh.albedo { |
| 269 | texture_indices.insert(index); |
| 270 | } |
| 271 | } |
| 272 | } |
| 273 | let mut decoded = 0usize; |
| 274 | for index in texture_indices { |
| 275 | decoded += self.texture(index)?.rgba.len(); |
| 276 | if decoded > 64 * 1024 * 1024 { |
| 277 | return Err("textures samen groter dan 64 MiB".into()); |
| 278 | } |
| 279 | } |
| 280 | Ok(()) |
| 281 | } |
| 282 | pub fn texture(&self, index: usize) -> Result<Texture, String> { |
| 283 | let asset = self |
| 284 | .assets |
| 285 | .get(index) |
| 286 | .ok_or("textureverwijzing ontbreekt")?; |
| 287 | decode_png(&asset.bytes) |
| 288 | } |
| 289 | /// Exact container byte cost; does not substitute for semantic validation. |
| 290 | pub fn encoded_len(&self) -> Result<usize, String> { |
| 291 | let meta = serde_json::to_vec(self).map_err(|e| e.to_string())?.len(); |
| 292 | if meta > MAX_META { |
| 293 | return Err("presetmetadata is te groot".into()); |
| 294 | } |
| 295 | let size = self |
| 296 | .assets |
| 297 | .iter() |
| 298 | .try_fold(20 + meta, |size, a| { |
| 299 | size.checked_add(4)?.checked_add(a.bytes.len()) |
| 300 | }) |
| 301 | .ok_or("preset te groot")?; |
| 302 | if size > MAX_FILE { |
| 303 | return Err("preset te groot".into()); |
| 304 | } |
| 305 | Ok(size) |
| 306 | } |
| 307 | pub fn encode(&self) -> Result<Vec<u8>, String> { |
| 308 | self.validate()?; |
| 309 | let metadata = serde_json::to_vec(self).map_err(|e| e.to_string())?; |
| 310 | if metadata.len() > MAX_META { |
| 311 | return Err("presetmetadata is te groot".into()); |
| 312 | } |
| 313 | let mut payload = metadata; |
| 314 | let meta_len = payload.len(); |
| 315 | for asset in &self.assets { |
| 316 | payload.extend_from_slice(&(asset.bytes.len() as u32).to_le_bytes()); |
| 317 | payload.extend_from_slice(&asset.bytes); |
| 318 | } |
| 319 | if payload.len() + 20 > MAX_FILE { |
| 320 | return Err("preset is te groot".into()); |
| 321 | } |
| 322 | let mut out = MAGIC.to_vec(); |
| 323 | out.extend_from_slice(&VERSION.to_le_bytes()); |
| 324 | out.extend_from_slice(&(meta_len as u32).to_le_bytes()); |
| 325 | out.extend_from_slice(&checksum(&payload).to_le_bytes()); |
| 326 | out.extend(payload); |
| 327 | Ok(out) |
| 328 | } |
| 329 | pub fn decode(bytes: &[u8]) -> Result<Self, String> { |
| 330 | if bytes.len() < 20 || bytes.len() > MAX_FILE || &bytes[..8] != MAGIC { |
| 331 | return Err("ongeldig equipmentbestand of bestand te groot".into()); |
| 332 | } |
| 333 | let number = |offset| u32::from_le_bytes(bytes[offset..offset + 4].try_into().unwrap()); |
| 334 | if !(1..=VERSION).contains(&number(8)) { |
| 335 | return Err("onbekende equipmentversie".into()); |
| 336 | } |
| 337 | let meta_len = number(12) as usize; |
| 338 | if meta_len > MAX_META |
| 339 | || meta_len > bytes.len() - 20 |
| 340 | || checksum(&bytes[20..]) != number(16) |
| 341 | { |
| 342 | return Err("beschadigde equipmentdata".into()); |
| 343 | } |
| 344 | let version = number(8); |
| 345 | let raw: serde_json::Value = |
| 346 | serde_json::from_slice(&bytes[20..20 + meta_len]).map_err(|e| e.to_string())?; |
| 347 | let raw = if version < 4 { |
| 348 | migrate_preset_json(version, raw)? |
| 349 | } else { |
| 350 | raw |
| 351 | }; |
| 352 | let mut preset: Self = serde_json::from_value(raw).map_err(|e| e.to_string())?; |
| 353 | if preset.assets.len() > MAX_ASSETS { |
| 354 | return Err("te veel assets".into()); |
| 355 | } |
| 356 | let mut cursor = 20 + meta_len; |
| 357 | for asset in &mut preset.assets { |
| 358 | if cursor + 4 > bytes.len() { |
| 359 | return Err("afgebroken asset".into()); |
| 360 | } |
| 361 | let len = number(cursor) as usize; |
| 362 | cursor += 4; |
| 363 | if len > MAX_ASSET || len > bytes.len() - cursor { |
| 364 | return Err("ongeldige assetlengte".into()); |
| 365 | } |
| 366 | asset.bytes = bytes[cursor..cursor + len].to_vec(); |
| 367 | cursor += len; |
| 368 | } |
| 369 | if cursor != bytes.len() { |
| 370 | return Err("onverwachte extra equipmentdata".into()); |
| 371 | } |
| 372 | preset.validate()?; |
| 373 | Ok(preset) |
| 374 | } |
| 375 | pub fn read(path: &Path) -> Result<Self, String> { |
| 376 | if !path.is_file() { |
| 377 | return Err("kies een regulier presetbestand".into()); |
| 378 | } |
| 379 | let file = std::fs::File::open(path).map_err(|e| e.to_string())?; |
| 380 | let mut bytes = Vec::new(); |
| 381 | file.take((MAX_FILE + 1) as u64) |
| 382 | .read_to_end(&mut bytes) |
| 383 | .map_err(|e| e.to_string())?; |
| 384 | Self::decode(&bytes) |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | /// Result of [`copy_gender_mapping`]: how many source mappings landed on the |
| 389 | /// destination body, and how many had no bone of the same name. |
| 390 | #[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] |
| 391 | pub struct CopyGenderMapping { |
| 392 | pub mapped: usize, |
| 393 | pub unmatched: usize, |
| 394 | } |
| 395 | |
| 396 | /// Last joint name in a hierarchical path (`"Hips[0]/Hand[12]"` → `"Hand"`). |
| 397 | pub fn joint_leaf_name(path: &str) -> &str { |
| 398 | let last = path.rsplit('/').next().unwrap_or(path); |
| 399 | last.rsplit_once('[').map(|(name, _)| name).unwrap_or(last) |
| 400 | } |
| 401 | |
| 402 | /// Joint names along a path, without the `[node-index]` suffixes. |
| 403 | pub fn path_joint_names(path: &str) -> Vec<&str> { |
| 404 | path.split('/').map(joint_leaf_name).collect() |
| 405 | } |
| 406 | |
| 407 | /// Destination joint whose name matches the source path, preferring a unique |
| 408 | /// name and otherwise the longest shared ancestor-name chain. |
| 409 | pub fn joint_by_name(body: &PreviewCharacter, source_path: &str) -> Option<usize> { |
| 410 | let src_names = path_joint_names(source_path); |
| 411 | let src_name = src_names.last().copied().filter(|n| !n.is_empty())?; |
| 412 | let dest_paths = joint_paths(body); |
| 413 | let mut matches: Vec<usize> = body |
| 414 | .joint_names |
| 415 | .iter() |
| 416 | .enumerate() |
| 417 | .filter(|(_, name)| *name == src_name) |
| 418 | .map(|(i, _)| i) |
| 419 | .collect(); |
| 420 | if matches.is_empty() { |
| 421 | matches = dest_paths |
| 422 | .iter() |
| 423 | .enumerate() |
| 424 | .filter(|(_, p)| joint_leaf_name(p) == src_name) |
| 425 | .map(|(i, _)| i) |
| 426 | .collect(); |
| 427 | } |
| 428 | if matches.is_empty() { |
| 429 | return None; |
| 430 | } |
| 431 | if matches.len() == 1 { |
| 432 | return Some(matches[0]); |
| 433 | } |
| 434 | matches.sort_by_key(|&i| { |
| 435 | let dest = path_joint_names(&dest_paths[i]); |
| 436 | let common = src_names |
| 437 | .iter() |
| 438 | .rev() |
| 439 | .zip(dest.iter().rev()) |
| 440 | .take_while(|(a, b)| a == b) |
| 441 | .count(); |
| 442 | std::cmp::Reverse((common, dest.len() == src_names.len())) |
| 443 | }); |
| 444 | Some(matches[0]) |
| 445 | } |
| 446 | |
| 447 | /// Expand version 1–3 shared rigid offsets to a per-sex pair. The shared |
| 448 | /// translation/rotation is applied to every enabled sex; a disabled sex keeps |
| 449 | /// a zero offset (and whatever bone path it already had). |
| 450 | pub fn migrate_preset_json( |
| 451 | version: u32, |
| 452 | mut value: serde_json::Value, |
| 453 | ) -> Result<serde_json::Value, String> { |
| 454 | if version >= 4 { |
| 455 | return Ok(value); |
| 456 | } |
| 457 | let applies = value.get("applies").cloned(); |
| 458 | let enabled = |sex: usize| { |
| 459 | applies |
| 460 | .as_ref() |
| 461 | .and_then(|a| a.as_array()) |
| 462 | .and_then(|a| a.get(sex)) |
| 463 | .and_then(|v| v.as_bool()) |
| 464 | .unwrap_or(true) |
| 465 | }; |
| 466 | let Some(attachments) = value.get_mut("attachments").and_then(|a| a.as_array_mut()) else { |
| 467 | return Ok(value); |
| 468 | }; |
| 469 | for attachment in attachments { |
| 470 | expand_vec3_per_sex(attachment, "translation", enabled)?; |
| 471 | expand_vec3_per_sex(attachment, "rotation_deg", enabled)?; |
| 472 | } |
| 473 | Ok(value) |
| 474 | } |
| 475 | |
| 476 | fn expand_vec3_per_sex( |
| 477 | attachment: &mut serde_json::Value, |
| 478 | key: &str, |
| 479 | enabled: impl Fn(usize) -> bool, |
| 480 | ) -> Result<(), String> { |
| 481 | let Some(value) = attachment.get(key) else { |
| 482 | return Ok(()); |
| 483 | }; |
| 484 | if value |
| 485 | .as_array() |
| 486 | .is_some_and(|items| items.first().is_some_and(serde_json::Value::is_array)) |
| 487 | { |
| 488 | return Ok(()); |
| 489 | } |
| 490 | let vec3 = parse_vec3(value, key)?; |
| 491 | let zero = [0.0f32; 3]; |
| 492 | attachment[key] = serde_json::json!([ |
| 493 | if enabled(0) { vec3 } else { zero }, |
| 494 | if enabled(1) { vec3 } else { zero }, |
| 495 | ]); |
| 496 | Ok(()) |
| 497 | } |
| 498 | |
| 499 | fn parse_vec3(value: &serde_json::Value, key: &str) -> Result<[f32; 3], String> { |
| 500 | let items = value |
| 501 | .as_array() |
| 502 | .ok_or_else(|| format!("{key} is ongeldig"))?; |
| 503 | if items.len() != 3 { |
| 504 | return Err(format!("{key} is ongeldig")); |
| 505 | } |
| 506 | let mut out = [0.0f32; 3]; |
| 507 | for (i, item) in items.iter().enumerate() { |
| 508 | out[i] = item.as_f64().ok_or_else(|| format!("{key} is ongeldig"))? as f32; |
| 509 | } |
| 510 | Ok(out) |
| 511 | } |
| 512 | |
| 513 | /// Copy already-authored mappings from one sex onto a newly enabled sex. |
| 514 | pub fn copy_gender_mapping( |
| 515 | preset: &mut Preset, |
| 516 | from_sex: usize, |
| 517 | to_sex: usize, |
| 518 | to_body: &PreviewCharacter, |
| 519 | ) -> Result<CopyGenderMapping, String> { |
| 520 | if from_sex > 1 || to_sex > 1 { |
| 521 | return Err("ongeldig geslacht".into()); |
| 522 | } |
| 523 | if from_sex == to_sex { |
| 524 | return Ok(CopyGenderMapping::default()); |
| 525 | } |
| 526 | if to_body.is_static() || to_body.joint_nodes.is_empty() { |
| 527 | return Err( |
| 528 | "kies een geskind lichaam voor dit geslacht om de botkoppeling over te nemen".into(), |
| 529 | ); |
| 530 | } |
| 531 | let dest_paths = joint_paths(to_body); |
| 532 | let mut outcome = CopyGenderMapping::default(); |
| 533 | let mut copied = false; |
| 534 | for index in 0..preset.attachments.len() { |
| 535 | if Preset::attachment_mapped(&preset.attachments[index], to_sex) { |
| 536 | continue; |
| 537 | } |
| 538 | if !Preset::attachment_mapped(&preset.attachments[index], from_sex) { |
| 539 | continue; |
| 540 | } |
| 541 | let item = &preset.attachments[index]; |
| 542 | if item.skeleton.is_some() { |
| 543 | let mut links = Vec::new(); |
| 544 | for link in &item.bone_links[from_sex] { |
| 545 | match joint_by_name(to_body, &link.target) { |
| 546 | Some(joint) => { |
| 547 | links.push(crate::equipment_rig::BoneLink { |
| 548 | bone: link.bone, |
| 549 | target: dest_paths[joint].clone(), |
| 550 | translation: link.translation, |
| 551 | rotation_deg: link.rotation_deg, |
| 552 | }); |
| 553 | outcome.mapped += 1; |
| 554 | } |
| 555 | None => outcome.unmatched += 1, |
| 556 | } |
| 557 | } |
| 558 | if !links.is_empty() { |
| 559 | preset.attachments[index].bone_links[to_sex] = links; |
| 560 | copied = true; |
| 561 | } |
| 562 | } else if let Some(path) = item.bones[from_sex].clone() { |
| 563 | let translation = item.translation[from_sex]; |
| 564 | let rotation_deg = item.rotation_deg[from_sex]; |
| 565 | if let Some(joint) = joint_by_name(to_body, &path) { |
| 566 | let item = &mut preset.attachments[index]; |
| 567 | item.bones[to_sex] = Some(dest_paths[joint].clone()); |
| 568 | item.translation[to_sex] = translation; |
| 569 | item.rotation_deg[to_sex] = rotation_deg; |
| 570 | outcome.mapped += 1; |
| 571 | copied = true; |
| 572 | } else { |
| 573 | outcome.unmatched += 1; |
| 574 | } |
| 575 | } |
| 576 | } |
| 577 | if copied { |
| 578 | preset.rigs[to_sex] = Some(RigSignature::of(to_body)); |
| 579 | for attachment in &mut preset.attachments { |
| 580 | attachment.bone_links[to_sex].retain(|l| dest_paths.contains(&l.target)); |
| 581 | if attachment.bones[to_sex] |
| 582 | .as_ref() |
| 583 | .is_some_and(|p| !dest_paths.contains(p)) |
| 584 | { |
| 585 | attachment.bones[to_sex] = None; |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | Ok(outcome) |
| 590 | } |
| 591 | |
| 592 | pub fn valid_name(name: &str) -> bool { |
| 593 | !name.is_empty() |
| 594 | && name.len() <= 64 |
| 595 | && name != "body" |
| 596 | && name |
| 597 | .bytes() |
| 598 | .all(|c| c.is_ascii_lowercase() || c.is_ascii_digit() || c == b'-' || c == b'_') |
| 599 | } |
| 600 | |
| 601 | pub fn checksum(bytes: &[u8]) -> u32 { |
| 602 | let mut crc = !0u32; |
| 603 | for byte in bytes { |
| 604 | crc ^= u32::from(*byte); |
| 605 | for _ in 0..8 { |
| 606 | crc = (crc >> 1) ^ (0xedb88320u32 & (0u32.wrapping_sub(crc & 1))); |
| 607 | } |
| 608 | } |
| 609 | !crc |
| 610 | } |
| 611 | |
| 612 | /// Immutable snapshot publish: a hard link atomically creates the destination |
| 613 | /// without overwriting an older saved preset. Failure leaves old data intact. |
| 614 | pub fn write_snapshot(path: &Path, bytes: &[u8]) -> Result<(), String> { |
| 615 | if bytes.len() > MAX_FILE { |
| 616 | return Err("snapshot te groot".into()); |
| 617 | } |
| 618 | if path.exists() { |
| 619 | if !path.is_file() { |
| 620 | return Err("snapshot is geen regulier bestand".into()); |
| 621 | } |
| 622 | let mut current = Vec::new(); |
| 623 | std::fs::File::open(path) |
| 624 | .map_err(|e| e.to_string())? |
| 625 | .take((MAX_FILE + 1) as u64) |
| 626 | .read_to_end(&mut current) |
| 627 | .map_err(|e| e.to_string())?; |
| 628 | return if current == bytes { |
| 629 | Ok(()) |
| 630 | } else { |
| 631 | Err("snapshotnaam bestaat met andere inhoud".into()) |
| 632 | }; |
| 633 | } |
| 634 | let stamp = std::time::SystemTime::now() |
| 635 | .duration_since(std::time::UNIX_EPOCH) |
| 636 | .unwrap_or_default() |
| 637 | .as_nanos(); |
| 638 | let temp = path.with_extension(format!("ppe.part-{}-{stamp}", std::process::id())); |
| 639 | let result = (|| { |
| 640 | let mut file = std::fs::OpenOptions::new() |
| 641 | .write(true) |
| 642 | .create_new(true) |
| 643 | .open(&temp) |
| 644 | .map_err(|e| e.to_string())?; |
| 645 | file.write_all(bytes) |
| 646 | .and_then(|_| file.sync_all()) |
| 647 | .map_err(|e| e.to_string())?; |
| 648 | std::fs::hard_link(&temp, path).map_err(|e| e.to_string())?; |
| 649 | #[cfg(unix)] |
| 650 | std::fs::File::open(path.parent().ok_or("snapshotmap ontbreekt")?) |
| 651 | .and_then(|dir| dir.sync_all()) |
| 652 | .map_err(|e| e.to_string())?; |
| 653 | Ok(()) |
| 654 | })(); |
| 655 | let _ = std::fs::remove_file(temp); |
| 656 | result |
| 657 | } |
| 658 | |
| 659 | #[derive(Debug, Clone, PartialEq)] |
| 660 | pub struct Texture { |
| 661 | pub content_hash: u64, |
| 662 | pub width: u32, |
| 663 | pub height: u32, |
| 664 | pub rgba: Vec<u8>, |
| 665 | } |
| 666 | fn decode_png(bytes: &[u8]) -> Result<Texture, String> { |
| 667 | let mut decoder = png::Decoder::new(Cursor::new(bytes)); |
| 668 | decoder.set_transformations(png::Transformations::EXPAND | png::Transformations::STRIP_16); |
| 669 | let mut reader = decoder.read_info().map_err(|e| e.to_string())?; |
| 670 | let info = reader.info(); |
| 671 | if info.width == 0 || info.height == 0 || info.width > 2048 || info.height > 2048 { |
| 672 | return Err("texture is groter dan 2048×2048".into()); |
| 673 | } |
| 674 | let size = reader |
| 675 | .output_buffer_size() |
| 676 | .ok_or("ongeldige texturegrootte")?; |
| 677 | if size > 2048 * 2048 * 8 { |
| 678 | return Err("texture is te groot".into()); |
| 679 | } |
| 680 | let mut data = vec![0; size]; |
| 681 | let info = reader.next_frame(&mut data).map_err(|e| e.to_string())?; |
| 682 | let channels = info.color_type.samples(); |
| 683 | let mut rgba = Vec::with_capacity(info.width as usize * info.height as usize * 4); |
| 684 | for pixel in data[..info.buffer_size()].chunks_exact(channels) { |
| 685 | match info.color_type { |
| 686 | png::ColorType::Grayscale => { |
| 687 | rgba.extend_from_slice(&[pixel[0], pixel[0], pixel[0], 255]) |
| 688 | } |
| 689 | png::ColorType::GrayscaleAlpha => { |
| 690 | rgba.extend_from_slice(&[pixel[0], pixel[0], pixel[0], pixel[1]]) |
| 691 | } |
| 692 | png::ColorType::Rgb => rgba.extend_from_slice(&[pixel[0], pixel[1], pixel[2], 255]), |
| 693 | png::ColorType::Rgba => rgba.extend_from_slice(pixel), |
| 694 | _ => return Err("onbekende texturecodering".into()), |
| 695 | } |
| 696 | } |
| 697 | use std::hash::{Hash, Hasher}; |
| 698 | let mut hash = std::collections::hash_map::DefaultHasher::new(); |
| 699 | rgba.hash(&mut hash); |
| 700 | Ok(Texture { |
| 701 | content_hash: hash.finish(), |
| 702 | width: info.width, |
| 703 | height: info.height, |
| 704 | rgba, |
| 705 | }) |
| 706 | } |
| 707 | |
| 708 | pub fn local_matrix(translation: [f32; 3], degrees: [f32; 3]) -> Mat4 { |
| 709 | let [x, y, z] = degrees.map(f32::to_radians); |
| 710 | let (sx, cx) = x.sin_cos(); |
| 711 | let (sy, cy) = y.sin_cos(); |
| 712 | let (sz, cz) = z.sin_cos(); |
| 713 | let rx = [ |
| 714 | 1., 0., 0., 0., 0., cx, sx, 0., 0., -sx, cx, 0., 0., 0., 0., 1., |
| 715 | ]; |
| 716 | let ry = [ |
| 717 | cy, 0., -sy, 0., 0., 1., 0., 0., sy, 0., cy, 0., 0., 0., 0., 1., |
| 718 | ]; |
| 719 | let rz = [ |
| 720 | cz, sz, 0., 0., -sz, cz, 0., 0., 0., 0., 1., 0., 0., 0., 0., 1., |
| 721 | ]; |
| 722 | let mut matrix = mul(rz, mul(ry, rx)); |
| 723 | matrix[12] = translation[0]; |
| 724 | matrix[13] = translation[1]; |
| 725 | matrix[14] = translation[2]; |
| 726 | matrix |
| 727 | } |
| 728 | |
| 729 | #[derive(Debug, Clone)] |
| 730 | pub struct Layer { |
| 731 | pub mesh: Mesh, |
| 732 | pub model: Mat4, |
| 733 | pub albedo: Option<std::sync::Arc<Texture>>, |
| 734 | pub shiny: Option<std::sync::Arc<Texture>>, |
| 735 | pub specular: f32, |
| 736 | } |
| 737 | |
| 738 | #[derive(Default)] |
| 739 | pub struct TextureCache { |
| 740 | entries: std::collections::VecDeque<(Vec<u8>, std::sync::Arc<Texture>)>, |
| 741 | bytes: usize, |
| 742 | } |
| 743 | impl TextureCache { |
| 744 | pub(crate) fn get( |
| 745 | &mut self, |
| 746 | preset: &Preset, |
| 747 | index: usize, |
| 748 | ) -> Result<std::sync::Arc<Texture>, String> { |
| 749 | let bytes = &preset.assets.get(index).ok_or("texture ontbreekt")?.bytes; |
| 750 | if let Some((_, texture)) = self.entries.iter().find(|(source, _)| source == bytes) { |
| 751 | return Ok(texture.clone()); |
| 752 | } |
| 753 | let texture = std::sync::Arc::new(decode_png(bytes)?); |
| 754 | let cost = bytes.len() + texture.rgba.len(); |
| 755 | while self.bytes + cost > 128 * 1024 * 1024 { |
| 756 | if let Some((source, image)) = self.entries.pop_front() { |
| 757 | self.bytes -= source.len() + image.rgba.len(); |
| 758 | } else { |
| 759 | break; |
| 760 | } |
| 761 | } |
| 762 | self.bytes += cost; |
| 763 | self.entries.push_back((bytes.clone(), texture.clone())); |
| 764 | Ok(texture) |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | pub fn layers( |
| 769 | preset: &Preset, |
| 770 | sex: usize, |
| 771 | body: &PreviewCharacter, |
| 772 | controls: &PreviewControls, |
| 773 | ) -> Result<Vec<Layer>, String> { |
| 774 | layers_cached(preset, sex, body, controls, &mut TextureCache::default()) |
| 775 | } |
| 776 | |
| 777 | pub fn layers_cached( |
| 778 | preset: &Preset, |
| 779 | sex: usize, |
| 780 | body: &PreviewCharacter, |
| 781 | controls: &PreviewControls, |
| 782 | cache: &mut TextureCache, |
| 783 | ) -> Result<Vec<Layer>, String> { |
| 784 | if sex > 1 { |
| 785 | return Err("ongeldig geslacht".into()); |
| 786 | } |
| 787 | if !preset.applies[sex] || preset.attachments.is_empty() { |
| 788 | return Ok(Vec::new()); |
| 789 | } |
| 790 | let signature = RigSignature::of(body); |
| 791 | if preset.rigs[sex].as_ref() != Some(&signature) { |
| 792 | return Err("rig wijkt af: kies de botten opnieuw voor dit lichaam".into()); |
| 793 | } |
| 794 | let paths = joint_paths(body); |
| 795 | let mut layers = Vec::new(); |
| 796 | for item in &preset.attachments { |
| 797 | if let Some(skeleton) = &item.skeleton { |
| 798 | let models = crate::equipment_rig::bone_models( |
| 799 | skeleton, |
| 800 | &item.bone_links[sex], |
| 801 | &paths, |
| 802 | |joint| animated_joint_world(body, &controls.clip_name, controls.time, joint), |
| 803 | )?; |
| 804 | let shiny = item.shiny.map(|i| cache.get(preset, i)).transpose()?; |
| 805 | for mesh in &item.meshes { |
| 806 | layers.push(Layer { |
| 807 | mesh: mesh.clone(), |
| 808 | model: models[mesh.bone.unwrap_or(0)], |
| 809 | albedo: mesh.albedo.map(|i| cache.get(preset, i)).transpose()?, |
| 810 | shiny: shiny.clone(), |
| 811 | specular: item.specular, |
| 812 | }); |
| 813 | } |
| 814 | continue; |
| 815 | } |
| 816 | let path = item.bones[sex] |
| 817 | .as_deref() |
| 818 | .ok_or("kies een bot voor dit onderdeel en geslacht")?; |
| 819 | let joint = paths |
| 820 | .iter() |
| 821 | .position(|p| p == path) |
| 822 | .ok_or("het gekoppelde bot ontbreekt")?; |
| 823 | let world = animated_joint_world(body, &controls.clip_name, controls.time, joint) |
| 824 | .ok_or("het gekoppelde bot ontbreekt")?; |
| 825 | let model = mul( |
| 826 | world, |
| 827 | local_matrix(item.translation[sex], item.rotation_deg[sex]), |
| 828 | ); |
| 829 | let shiny = item.shiny.map(|i| cache.get(preset, i)).transpose()?; |
| 830 | for mesh in &item.meshes { |
| 831 | layers.push(Layer { |
| 832 | mesh: mesh.clone(), |
| 833 | model, |
| 834 | albedo: mesh.albedo.map(|i| cache.get(preset, i)).transpose()?, |
| 835 | shiny: shiny.clone(), |
| 836 | specular: item.specular, |
| 837 | }); |
| 838 | } |
| 839 | } |
| 840 | Ok(layers) |
| 841 | } |
| 842 | |
| 843 | /// Import an OBJ and its declared MTL/PNG dependencies into the preset itself. |
| 844 | /// No extraction directories, absolute references or parent traversal allowed. |
| 845 | pub fn import_obj(preset: &mut Preset, source: &Path) -> Result<usize, String> { |
| 846 | import_obj_limited(preset, source, MAX_VERTICES) |
| 847 | } |
| 848 | |
| 849 | pub(crate) fn import_obj_limited( |
| 850 | preset: &mut Preset, |
| 851 | source: &Path, |
| 852 | max_vertices: usize, |
| 853 | ) -> Result<usize, String> { |
| 854 | if source |
| 855 | .extension() |
| 856 | .and_then(|x| x.to_str()) |
| 857 | .map(|x| !x.eq_ignore_ascii_case("obj")) |
| 858 | .unwrap_or(true) |
| 859 | { |
| 860 | return Err("kies een rigide OBJ-model met MTL/PNG-bijbestanden".into()); |
| 861 | } |
| 862 | let root = source |
| 863 | .parent() |
| 864 | .ok_or("modelmap ontbreekt")? |
| 865 | .canonicalize() |
| 866 | .map_err(|e| e.to_string())?; |
| 867 | let name = source |
| 868 | .file_name() |
| 869 | .and_then(|x| x.to_str()) |
| 870 | .ok_or("ongeldige modelnaam")?; |
| 871 | let mut candidate = preset.clone(); |
| 872 | if candidate.attachments.len() >= 32 { |
| 873 | return Err("te veel onderdelen".into()); |
| 874 | } |
| 875 | compact_assets(&mut candidate)?; |
| 876 | let prefix = unique_prefix(&candidate, "part"); |
| 877 | let obj_bytes = read_asset(&root, name)?; |
| 878 | let obj_text = std::str::from_utf8(&obj_bytes).map_err(|e| e.to_string())?; |
| 879 | let mut dependencies = BTreeSet::new(); |
| 880 | dependencies.insert(name.to_string()); |
| 881 | for line in obj_text.lines() { |
| 882 | if let Some(rest) = line.trim().strip_prefix("mtllib ") { |
| 883 | let mtl = rest.trim(); |
| 884 | dependencies.insert(mtl.to_string()); |
| 885 | let bytes = read_asset(&root, mtl)?; |
| 886 | let text = std::str::from_utf8(&bytes).map_err(|e| e.to_string())?; |
| 887 | for line in text.lines() { |
| 888 | let line = line.trim(); |
| 889 | if line.starts_with("map_") |
| 890 | || line.starts_with("bump ") |
| 891 | || line.starts_with("disp ") |
| 892 | { |
| 893 | let (_, path) = line |
| 894 | .split_once(char::is_whitespace) |
| 895 | .ok_or("ongeldige textureverwijzing")?; |
| 896 | let relative = Path::new(mtl) |
| 897 | .parent() |
| 898 | .unwrap_or(Path::new("")) |
| 899 | .join(path.trim()); |
| 900 | let relative = relative |
| 901 | .to_str() |
| 902 | .ok_or("ongeldig texturepad")? |
| 903 | .replace('\\', "/"); |
| 904 | portable_relative(&relative)?; |
| 905 | dependencies.insert(relative); |
| 906 | } |
| 907 | } |
| 908 | } |
| 909 | } |
| 910 | if dependencies.len() + candidate.assets.len() > MAX_ASSETS { |
| 911 | return Err("te veel bijbestanden".into()); |
| 912 | } |
| 913 | let mut asset_map = std::collections::BTreeMap::new(); |
| 914 | let mut total_bytes: usize = candidate.assets.iter().map(|a| a.bytes.len()).sum(); |
| 915 | for relative in dependencies { |
| 916 | let bytes = read_asset(&root, &relative)?; |
| 917 | total_bytes += bytes.len(); |
| 918 | if total_bytes > MAX_FILE { |
| 919 | return Err("assets samen te groot".into()); |
| 920 | } |
| 921 | let index = candidate.assets.len(); |
| 922 | candidate.assets.push(EmbeddedAsset { |
| 923 | path: format!("{prefix}/{relative}"), |
| 924 | bytes, |
| 925 | }); |
| 926 | asset_map.insert(relative, index); |
| 927 | } |
| 928 | // A checked callback prevents the parser from reading undeclared/unsafe files. |
| 929 | let mut input = std::io::BufReader::new(Cursor::new(obj_bytes)); |
| 930 | let options = tobj::LoadOptions { |
| 931 | triangulate: true, |
| 932 | single_index: true, |
| 933 | ..Default::default() |
| 934 | }; |
| 935 | let texture_paths = std::cell::RefCell::new(std::collections::BTreeMap::new()); |
| 936 | let (models, materials) = tobj::load_obj_buf(&mut input, &options, |path| { |
| 937 | let relative = path.to_string_lossy().replace('\\', "/"); |
| 938 | let index = asset_map |
| 939 | .get(&relative) |
| 940 | .ok_or(tobj::LoadError::OpenFileFailed)?; |
| 941 | let mut reader = std::io::BufReader::new(Cursor::new(&candidate.assets[*index].bytes)); |
| 942 | let (materials, map) = tobj::load_mtl_buf(&mut reader)?; |
| 943 | for material in &materials { |
| 944 | if let Some(texture) = &material.diffuse_texture { |
| 945 | let relative = path |
| 946 | .parent() |
| 947 | .unwrap_or(Path::new("")) |
| 948 | .join(texture) |
| 949 | .to_string_lossy() |
| 950 | .replace('\\', "/"); |
| 951 | texture_paths |
| 952 | .borrow_mut() |
| 953 | .insert(material.name.clone(), relative); |
| 954 | } |
| 955 | } |
| 956 | Ok((materials, map)) |
| 957 | }) |
| 958 | .map_err(|e| e.to_string())?; |
| 959 | let materials = materials.map_err(|e| e.to_string())?; |
| 960 | let texture_paths = texture_paths.into_inner(); |
| 961 | let mut meshes = Vec::new(); |
| 962 | let mut vertices: usize = candidate |
| 963 | .attachments |
| 964 | .iter() |
| 965 | .flat_map(|a| &a.meshes) |
| 966 | .map(|m| m.positions.len()) |
| 967 | .sum(); |
| 968 | for model in models { |
| 969 | let source = model.mesh; |
| 970 | vertices += source.positions.len() / 3; |
| 971 | if vertices > max_vertices || source.indices.len() > max_vertices * 6 { |
| 972 | return Err("equipmentmesh is te groot".into()); |
| 973 | } |
| 974 | let positions: Vec<[f32; 3]> = source |
| 975 | .positions |
| 976 | .chunks_exact(3) |
| 977 | .map(|x| [x[0], x[1], x[2]]) |
| 978 | .collect(); |
| 979 | let mut normals: Vec<[f32; 3]> = source |
| 980 | .normals |
| 981 | .chunks_exact(3) |
| 982 | .map(|x| [x[0], x[1], x[2]]) |
| 983 | .collect(); |
| 984 | if normals.len() != positions.len() { |
| 985 | normals = compute_normals(&positions, &source.indices)?; |
| 986 | } |
| 987 | let mut uvs: Vec<[f32; 2]> = source |
| 988 | .texcoords |
| 989 | .chunks_exact(2) |
| 990 | .map(|x| [x[0], x[1]]) |
| 991 | .collect(); |
| 992 | if uvs.len() != positions.len() { |
| 993 | uvs = vec![[0.; 2]; positions.len()]; |
| 994 | } |
| 995 | let material = source.material_id.and_then(|id| materials.get(id)); |
| 996 | let color = material.and_then(|m| m.diffuse).unwrap_or([0.7, 0.7, 0.7]); |
| 997 | let albedo = material |
| 998 | .and_then(|m| texture_paths.get(&m.name)) |
| 999 | .map(|path| { |
| 1000 | asset_map |
| 1001 | .get(path) |
| 1002 | .copied() |
| 1003 | .ok_or("ontbrekende diffuse texture") |
| 1004 | }) |
| 1005 | .transpose()?; |
| 1006 | meshes.push(Mesh { |
| 1007 | positions, |
| 1008 | normals, |
| 1009 | uvs, |
| 1010 | indices: source.indices, |
| 1011 | color: [ |
| 1012 | color[0], |
| 1013 | color[1], |
| 1014 | color[2], |
| 1015 | material.and_then(|m| m.dissolve).unwrap_or(1.), |
| 1016 | ], |
| 1017 | albedo, |
| 1018 | bone: None, |
| 1019 | }); |
| 1020 | } |
| 1021 | if meshes.is_empty() { |
| 1022 | return Err("het OBJ-bestand heeft geen meshes".into()); |
| 1023 | } |
| 1024 | candidate.attachments.push(Attachment { |
| 1025 | label: name.to_string(), |
| 1026 | source_assets: asset_map.values().copied().collect(), |
| 1027 | bones: [None, None], |
| 1028 | translation: [[0.; 3]; 2], |
| 1029 | rotation_deg: [[0.; 3]; 2], |
| 1030 | meshes, |
| 1031 | shiny: None, |
| 1032 | specular: 0.25, |
| 1033 | skeleton: None, |
| 1034 | bone_links: [Vec::new(), Vec::new()], |
| 1035 | }); |
| 1036 | candidate.validate_with(max_vertices)?; |
| 1037 | *preset = candidate; |
| 1038 | Ok(preset.attachments.len() - 1) |
| 1039 | } |
| 1040 | |
| 1041 | /// Import a rigid equipment model, choosing the reader by extension (OBJ+MTL or FBX). |
| 1042 | pub fn import_model(preset: &mut Preset, source: &Path) -> Result<usize, String> { |
| 1043 | match source |
| 1044 | .extension() |
| 1045 | .and_then(|x| x.to_str()) |
| 1046 | .map(|x| x.to_ascii_lowercase()) |
| 1047 | .as_deref() |
| 1048 | { |
| 1049 | Some("obj") => import_obj(preset, source), |
| 1050 | Some("gltf" | "glb") => crate::equipment_rig::import_skinned(preset, source), |
| 1051 | Some("fbx") => match crate::equipment_rig::import_skinned(preset, source) { |
| 1052 | Err(error) if error == crate::equipment_rig::NOT_SKINNED => import_fbx(preset, source), |
| 1053 | other => other, |
| 1054 | }, |
| 1055 | _ => Err("kies een OBJ- (met MTL/PNG), FBX- of geskind glTF/GLB-model".into()), |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | /// Import a rigid (unskinned) FBX into the preset. ufbx parses only the |
| 1060 | /// in-memory bytes (no external file access); axis/unit normalisation to |
| 1061 | /// right-handed Y-up metres happens once, here, exactly like `fbx_scene`. |
| 1062 | /// Embedded PNG textures are copied into the preset; external PNG textures |
| 1063 | /// must be relative files inside the model folder and are embedded too. |
| 1064 | pub fn import_fbx(preset: &mut Preset, source: &Path) -> Result<usize, String> { |
| 1065 | import_fbx_limited(preset, source, MAX_VERTICES) |
| 1066 | } |
| 1067 | |
| 1068 | pub(crate) fn import_fbx_limited( |
| 1069 | preset: &mut Preset, |
| 1070 | source: &Path, |
| 1071 | max_vertices: usize, |
| 1072 | ) -> Result<usize, String> { |
| 1073 | if source |
| 1074 | .extension() |
| 1075 | .and_then(|x| x.to_str()) |
| 1076 | .map(|x| !x.eq_ignore_ascii_case("fbx")) |
| 1077 | .unwrap_or(true) |
| 1078 | { |
| 1079 | return Err("kies een rigide FBX-model".into()); |
| 1080 | } |
| 1081 | let root = source |
| 1082 | .parent() |
| 1083 | .ok_or("modelmap ontbreekt")? |
| 1084 | .canonicalize() |
| 1085 | .map_err(|e| e.to_string())?; |
| 1086 | let name = source |
| 1087 | .file_name() |
| 1088 | .and_then(|x| x.to_str()) |
| 1089 | .ok_or("ongeldige modelnaam")?; |
| 1090 | let mut candidate = preset.clone(); |
| 1091 | if candidate.attachments.len() >= 32 { |
| 1092 | return Err("te veel onderdelen".into()); |
| 1093 | } |
| 1094 | compact_assets(&mut candidate)?; |
| 1095 | let prefix = unique_prefix(&candidate, "part"); |
| 1096 | let fbx_bytes = read_asset(&root, name)?; |
| 1097 | let opts = ufbx::LoadOpts { |
| 1098 | target_axes: ufbx::axes_right_handed_y_up(), |
| 1099 | target_unit_meters: 1.0, |
| 1100 | space_conversion: ufbx::SpaceConversion::ModifyGeometry, |
| 1101 | geometry_transform_handling: ufbx::GeometryTransformHandling::ModifyGeometry, |
| 1102 | generate_missing_normals: true, |
| 1103 | normalize_normals: true, |
| 1104 | load_external_files: false, |
| 1105 | ..Default::default() |
| 1106 | }; |
| 1107 | let scene = ufbx::load_memory(&fbx_bytes, opts) |
| 1108 | .map_err(|e| format!("FBX laden mislukt: {}", e.description))?; |
| 1109 | if scene.metadata.geometry_ignored { |
| 1110 | return Err("FBX heeft geometrie genegeerd; bestand is niet tekenbaar".into()); |
| 1111 | } |
| 1112 | let mut total_bytes: usize = candidate.assets.iter().map(|a| a.bytes.len()).sum(); |
| 1113 | let mut push_asset = |
| 1114 | |candidate: &mut Preset, path: String, bytes: Vec<u8>| -> Result<usize, String> { |
| 1115 | total_bytes += bytes.len(); |
| 1116 | if total_bytes > MAX_FILE || candidate.assets.len() >= MAX_ASSETS { |
| 1117 | return Err("assets samen te groot of te veel bijbestanden".into()); |
| 1118 | } |
| 1119 | candidate.assets.push(EmbeddedAsset { path, bytes }); |
| 1120 | Ok(candidate.assets.len() - 1) |
| 1121 | }; |
| 1122 | let source_index = push_asset(&mut candidate, format!("{prefix}/{name}"), fbx_bytes)?; |
| 1123 | let mut source_assets = vec![source_index]; |
| 1124 | // Texture identity (element id) -> embedded asset index, so shared textures are stored once. |
| 1125 | let mut texture_assets: std::collections::BTreeMap<u32, usize> = Default::default(); |
| 1126 | let mut vertices: usize = candidate |
| 1127 | .attachments |
| 1128 | .iter() |
| 1129 | .flat_map(|a| &a.meshes) |
| 1130 | .map(|m| m.positions.len()) |
| 1131 | .sum(); |
| 1132 | let mut meshes = Vec::new(); |
| 1133 | let mut tri = Vec::new(); |
| 1134 | for node in &scene.nodes { |
| 1135 | let Some(mesh) = node.mesh.as_ref() else { |
| 1136 | continue; |
| 1137 | }; |
| 1138 | if mesh.num_triangles == 0 { |
| 1139 | continue; |
| 1140 | } |
| 1141 | if !mesh.skin_deformers.is_empty() { |
| 1142 | return Err(format!( |
| 1143 | "FBX-mesh '{}' is geskinned; alleen rigide equipment wordt ondersteund", |
| 1144 | node.element.name.trim() |
| 1145 | )); |
| 1146 | } |
| 1147 | if !mesh.blend_deformers.is_empty() { |
| 1148 | return Err(format!( |
| 1149 | "FBX-mesh '{}' heeft morph targets; die worden niet ondersteund", |
| 1150 | node.element.name.trim() |
| 1151 | )); |
| 1152 | } |
| 1153 | let to_world = node.geometry_to_world; |
| 1154 | let for_normals = ufbx::matrix_for_normals(&to_world); |
| 1155 | let parts = mesh.material_parts.len().max(1); |
| 1156 | for part in 0..parts { |
| 1157 | let faces: Vec<u32> = if mesh.material_parts.is_empty() { |
| 1158 | (0..mesh.faces.len() as u32).collect() |
| 1159 | } else { |
| 1160 | mesh.material_parts[part] |
| 1161 | .face_indices |
| 1162 | .iter() |
| 1163 | .copied() |
| 1164 | .collect() |
| 1165 | }; |
| 1166 | if faces.is_empty() { |
| 1167 | continue; |
| 1168 | } |
| 1169 | let material = if mesh.material_parts.is_empty() { |
| 1170 | None |
| 1171 | } else { |
| 1172 | mesh.materials.get(part) |
| 1173 | }; |
| 1174 | let mut positions = Vec::new(); |
| 1175 | let mut normals = Vec::new(); |
| 1176 | let mut uvs = Vec::new(); |
| 1177 | let mut indices = Vec::new(); |
| 1178 | for face in faces { |
| 1179 | let face = mesh.faces[face as usize]; |
| 1180 | if face.num_indices < 3 { |
| 1181 | continue; |
| 1182 | } |
| 1183 | let count = ufbx::triangulate_face_vec(&mut tri, mesh, face) as usize; |
| 1184 | for t in 0..count { |
| 1185 | let mut corners = [tri[t * 3], tri[t * 3 + 1], tri[t * 3 + 2]]; |
| 1186 | if mesh.reversed_winding { |
| 1187 | corners.swap(1, 2); |
| 1188 | } |
| 1189 | for corner in corners { |
| 1190 | let corner = corner as usize; |
| 1191 | let p = ufbx::transform_position(&to_world, mesh.vertex_position[corner]); |
| 1192 | let n = if mesh.vertex_normal.exists { |
| 1193 | let n = |
| 1194 | ufbx::transform_direction(&for_normals, mesh.vertex_normal[corner]); |
| 1195 | let len = (n.x * n.x + n.y * n.y + n.z * n.z).sqrt(); |
| 1196 | if len > 1e-12 { |
| 1197 | [(n.x / len) as f32, (n.y / len) as f32, (n.z / len) as f32] |
| 1198 | } else { |
| 1199 | [0., 1., 0.] |
| 1200 | } |
| 1201 | } else { |
| 1202 | [0., 1., 0.] |
| 1203 | }; |
| 1204 | let uv = if mesh.vertex_uv.exists { |
| 1205 | let uv = mesh.vertex_uv[corner]; |
| 1206 | [uv.x as f32, uv.y as f32] |
| 1207 | } else { |
| 1208 | [0., 0.] |
| 1209 | }; |
| 1210 | indices.push(positions.len() as u32); |
| 1211 | positions.push([p.x as f32, p.y as f32, p.z as f32]); |
| 1212 | normals.push(n); |
| 1213 | uvs.push(uv); |
| 1214 | } |
| 1215 | } |
| 1216 | } |
| 1217 | if positions.is_empty() { |
| 1218 | continue; |
| 1219 | } |
| 1220 | vertices += positions.len(); |
| 1221 | if vertices > max_vertices { |
| 1222 | return Err("equipmentmesh is te groot".into()); |
| 1223 | } |
| 1224 | if positions |
| 1225 | .iter() |
| 1226 | .chain(&normals) |
| 1227 | .any(|v| v.iter().any(|x| !x.is_finite())) |
| 1228 | { |
| 1229 | return Err("FBX-mesh bevat niet-eindige posities of normalen".into()); |
| 1230 | } |
| 1231 | if !mesh.vertex_normal.exists { |
| 1232 | normals = compute_normals(&positions, &indices)?; |
| 1233 | } |
| 1234 | let (mut color, texture) = match material { |
| 1235 | None => ([0.7, 0.7, 0.7, 1.0], None), |
| 1236 | Some(m) => { |
| 1237 | let map = if m.pbr.base_color.has_value { |
| 1238 | &m.pbr.base_color |
| 1239 | } else { |
| 1240 | &m.fbx.diffuse_color |
| 1241 | }; |
| 1242 | let v = map.value_vec4; |
| 1243 | // Same alpha rule as the FBX body loader (`fbx_scene`). |
| 1244 | let alpha = if v.w == 0.0 { 1.0 } else { v.w as f32 }; |
| 1245 | ( |
| 1246 | [v.x as f32, v.y as f32, v.z as f32, alpha], |
| 1247 | map.texture |
| 1248 | .as_ref() |
| 1249 | .or(m.fbx.diffuse_color.texture.as_ref()), |
| 1250 | ) |
| 1251 | } |
| 1252 | }; |
| 1253 | if !color.iter().all(|c| c.is_finite()) { |
| 1254 | return Err("FBX-materiaal heeft een niet-eindige kleur".into()); |
| 1255 | } |
| 1256 | let albedo = match texture { |
| 1257 | None => None, |
| 1258 | Some(texture) => { |
| 1259 | let id = texture.element.element_id; |
| 1260 | if let Some(index) = texture_assets.get(&id) { |
| 1261 | Some(*index) |
| 1262 | } else { |
| 1263 | let (path, bytes) = if texture.content.size > 0 { |
| 1264 | let label = Path::new(texture.relative_filename.trim()) |
| 1265 | .file_name() |
| 1266 | .and_then(|n| n.to_str()) |
| 1267 | .filter(|n| !n.is_empty()) |
| 1268 | .map(|n| n.replace(['\\', ':'], "_")) |
| 1269 | .unwrap_or_else(|| format!("texture-{id}.png")); |
| 1270 | ( |
| 1271 | format!("{prefix}/embedded/{id}-{label}"), |
| 1272 | texture.content.to_vec(), |
| 1273 | ) |
| 1274 | } else { |
| 1275 | let relative = texture.relative_filename.trim().replace('\\', "/"); |
| 1276 | if relative.is_empty() { |
| 1277 | return Err( |
| 1278 | "FBX-texture heeft geen relatief pad en is niet ingebed".into(), |
| 1279 | ); |
| 1280 | } |
| 1281 | portable_relative(&relative) |
| 1282 | .map_err(|e| format!("FBX-texturepad geweigerd: {e}"))?; |
| 1283 | let bytes = read_asset(&root, &relative) |
| 1284 | .map_err(|e| format!("FBX-texture '{relative}': {e}"))?; |
| 1285 | (format!("{prefix}/{relative}"), bytes) |
| 1286 | }; |
| 1287 | if bytes.len() > MAX_ASSET { |
| 1288 | return Err("FBX-texture is te groot".into()); |
| 1289 | } |
| 1290 | decode_png(&bytes).map_err(|e| { |
| 1291 | format!("FBX-texture is geen bruikbare PNG (alleen PNG wordt ingesloten): {e}") |
| 1292 | })?; |
| 1293 | let index = push_asset(&mut candidate, path, bytes)?; |
| 1294 | texture_assets.insert(id, index); |
| 1295 | source_assets.push(index); |
| 1296 | Some(index) |
| 1297 | } |
| 1298 | } |
| 1299 | }; |
| 1300 | if albedo.is_some() { |
| 1301 | // FBX semantics: a connected diffuse texture replaces the colour property. |
| 1302 | color = [1., 1., 1., color[3]]; |
| 1303 | } |
| 1304 | meshes.push(Mesh { |
| 1305 | positions, |
| 1306 | normals, |
| 1307 | uvs, |
| 1308 | indices, |
| 1309 | color, |
| 1310 | albedo, |
| 1311 | bone: None, |
| 1312 | }); |
| 1313 | } |
| 1314 | } |
| 1315 | if meshes.is_empty() { |
| 1316 | return Err("het FBX-bestand heeft geen tekenbare meshes".into()); |
| 1317 | } |
| 1318 | source_assets.sort_unstable(); |
| 1319 | source_assets.dedup(); |
| 1320 | candidate.attachments.push(Attachment { |
| 1321 | label: name.to_string(), |
| 1322 | source_assets, |
| 1323 | bones: [None, None], |
| 1324 | translation: [[0.; 3]; 2], |
| 1325 | rotation_deg: [[0.; 3]; 2], |
| 1326 | meshes, |
| 1327 | shiny: None, |
| 1328 | specular: 0.25, |
| 1329 | skeleton: None, |
| 1330 | bone_links: [Vec::new(), Vec::new()], |
| 1331 | }); |
| 1332 | candidate.validate_with(max_vertices)?; |
| 1333 | *preset = candidate; |
| 1334 | Ok(preset.attachments.len() - 1) |
| 1335 | } |
| 1336 | |
| 1337 | pub fn import_shiny(preset: &mut Preset, attachment: usize, source: &Path) -> Result<(), String> { |
| 1338 | let root = source.parent().ok_or("texturemap ontbreekt")?; |
| 1339 | let name = source |
| 1340 | .file_name() |
| 1341 | .and_then(|x| x.to_str()) |
| 1342 | .ok_or("ongeldige bestandsnaam")?; |
| 1343 | let bytes = read_asset(root, name)?; |
| 1344 | decode_png(&bytes)?; |
| 1345 | let mut candidate = preset.clone(); |
| 1346 | let index = candidate.assets.len(); |
| 1347 | candidate.assets.push(EmbeddedAsset { |
| 1348 | path: format!("{}/{name}", unique_prefix(&candidate, "shiny")), |
| 1349 | bytes, |
| 1350 | }); |
| 1351 | candidate |
| 1352 | .attachments |
| 1353 | .get_mut(attachment) |
| 1354 | .ok_or("onderdeel ontbreekt")? |
| 1355 | .shiny = Some(index); |
| 1356 | compact_assets(&mut candidate)?; |
| 1357 | candidate.validate()?; |
| 1358 | *preset = candidate; |
| 1359 | Ok(()) |
| 1360 | } |
| 1361 | |
| 1362 | fn unique_prefix(preset: &Preset, kind: &str) -> String { |
| 1363 | (0..) |
| 1364 | .map(|i| format!("{kind}-{i}")) |
| 1365 | .find(|prefix| { |
| 1366 | !preset |
| 1367 | .assets |
| 1368 | .iter() |
| 1369 | .any(|a| a.path.split('/').next() == Some(prefix.as_str())) |
| 1370 | }) |
| 1371 | .expect("finite asset list") |
| 1372 | } |
| 1373 | pub(crate) fn compact_assets(preset: &mut Preset) -> Result<(), String> { |
| 1374 | let used: BTreeSet<usize> = preset |
| 1375 | .attachments |
| 1376 | .iter() |
| 1377 | .flat_map(|a| { |
| 1378 | a.source_assets |
| 1379 | .iter() |
| 1380 | .copied() |
| 1381 | .chain(a.shiny) |
| 1382 | .chain(a.meshes.iter().filter_map(|m| m.albedo)) |
| 1383 | }) |
| 1384 | .collect(); |
| 1385 | if used.iter().any(|i| *i >= preset.assets.len()) { |
| 1386 | return Err("ongeldige assetverwijzing".into()); |
| 1387 | } |
| 1388 | let mut remap = vec![0; preset.assets.len()]; |
| 1389 | let mut assets = Vec::new(); |
| 1390 | for (i, asset) in preset.assets.iter().enumerate() { |
| 1391 | if used.contains(&i) { |
| 1392 | remap[i] = assets.len(); |
| 1393 | assets.push(asset.clone()); |
| 1394 | } |
| 1395 | } |
| 1396 | for a in &mut preset.attachments { |
| 1397 | for i in &mut a.source_assets { |
| 1398 | *i = remap[*i]; |
| 1399 | } |
| 1400 | if let Some(i) = a.shiny.as_mut() { |
| 1401 | *i = remap[*i]; |
| 1402 | } |
| 1403 | for mesh in &mut a.meshes { |
| 1404 | if let Some(i) = mesh.albedo.as_mut() { |
| 1405 | *i = remap[*i]; |
| 1406 | } |
| 1407 | } |
| 1408 | } |
| 1409 | preset.assets = assets; |
| 1410 | Ok(()) |
| 1411 | } |
| 1412 | /// Clear an override and release its no-longer-used embedded texture. |
| 1413 | pub fn clear_shiny(preset: &mut Preset, index: usize) -> Result<(), String> { |
| 1414 | let mut candidate = preset.clone(); |
| 1415 | candidate |
| 1416 | .attachments |
| 1417 | .get_mut(index) |
| 1418 | .ok_or("onderdeel ontbreekt")? |
| 1419 | .shiny = None; |
| 1420 | compact_assets(&mut candidate)?; |
| 1421 | *preset = candidate; |
| 1422 | Ok(()) |
| 1423 | } |
| 1424 | /// Remove a part and its no-longer-used embedded assets, remapping all indices. |
| 1425 | pub fn remove_attachment(preset: &mut Preset, index: usize) -> Result<(), String> { |
| 1426 | if index >= preset.attachments.len() { |
| 1427 | return Err("onderdeel ontbreekt".into()); |
| 1428 | } |
| 1429 | let mut candidate = preset.clone(); |
| 1430 | candidate.attachments.remove(index); |
| 1431 | compact_assets(&mut candidate)?; |
| 1432 | *preset = candidate; |
| 1433 | Ok(()) |
| 1434 | } |
| 1435 | |
| 1436 | fn read_asset(root: &Path, relative: &str) -> Result<Vec<u8>, String> { |
| 1437 | portable_relative(relative)?; |
| 1438 | let root = root.canonicalize().map_err(|e| e.to_string())?; |
| 1439 | let path = root |
| 1440 | .join(relative) |
| 1441 | .canonicalize() |
| 1442 | .map_err(|e| e.to_string())?; |
| 1443 | if !path.starts_with(&root) { |
| 1444 | return Err("asset verlaat de modelmap".into()); |
| 1445 | } |
| 1446 | if !path.is_file() { |
| 1447 | return Err("asset is geen regulier bestand".into()); |
| 1448 | } |
| 1449 | let file = std::fs::File::open(path).map_err(|e| e.to_string())?; |
| 1450 | let mut bytes = Vec::new(); |
| 1451 | file.take((MAX_ASSET + 1) as u64) |
| 1452 | .read_to_end(&mut bytes) |
| 1453 | .map_err(|e| e.to_string())?; |
| 1454 | if bytes.len() > MAX_ASSET { |
| 1455 | return Err("asset is te groot".into()); |
| 1456 | } |
| 1457 | Ok(bytes) |
| 1458 | } |
| 1459 | fn compute_normals(positions: &[[f32; 3]], indices: &[u32]) -> Result<Vec<[f32; 3]>, String> { |
| 1460 | let mut normals = vec![[0.; 3]; positions.len()]; |
| 1461 | for t in indices.chunks_exact(3) { |
| 1462 | let [a, b, c] = [t[0] as usize, t[1] as usize, t[2] as usize]; |
| 1463 | if [a, b, c].iter().any(|i| *i >= positions.len()) { |
| 1464 | return Err("ongeldige OBJ-index".into()); |
| 1465 | } |
| 1466 | let ab = std::array::from_fn::<_, 3, _>(|i| positions[b][i] - positions[a][i]); |
| 1467 | let ac = std::array::from_fn::<_, 3, _>(|i| positions[c][i] - positions[a][i]); |
| 1468 | let n = [ |
| 1469 | ab[1] * ac[2] - ab[2] * ac[1], |
| 1470 | ab[2] * ac[0] - ab[0] * ac[2], |
| 1471 | ab[0] * ac[1] - ab[1] * ac[0], |
| 1472 | ]; |
| 1473 | for vertex in [a, b, c] { |
| 1474 | for (i, value) in n.iter().enumerate() { |
| 1475 | normals[vertex][i] += value; |
| 1476 | } |
| 1477 | } |
| 1478 | } |
| 1479 | for normal in &mut normals { |
| 1480 | let length = normal.iter().map(|v| v * v).sum::<f32>().sqrt(); |
| 1481 | if length > 1e-10 { |
| 1482 | for v in normal { |
| 1483 | *v /= length |
| 1484 | } |
| 1485 | } |
| 1486 | } |
| 1487 | Ok(normals) |
| 1488 | } |
Files
equipment.rs
Per-sex equipment offsets and copy-on-enable (Tim t1092u)
timfa Grok Bot · pushed by timfa · 1 day ago