1use std::{
2 fmt::{Display, Formatter},
3 io::{Read, Seek},
4 str::FromStr,
5 sync::Arc,
6};
7
8use anyhow::{anyhow, ensure};
9use binrw::{BinRead, Endian};
10
11use crate::{d2_shared::PackageNamedTagEntry, TagHash};
12
13pub trait ReadSeek: Read + Seek {}
14impl<R: Read + Seek> ReadSeek for R {}
15
16#[derive(Clone, Debug, bincode::Decode, bincode::Encode)]
17pub struct UEntryHeader {
18 pub reference: u32,
19 pub file_type: u8,
20 pub file_subtype: u8,
21 pub starting_block: u32,
22 pub starting_block_offset: u32,
23 pub file_size: u32,
24}
25
26#[derive(Clone)]
27pub struct UHashTableEntry {
28 pub hash64: u64,
29 pub hash32: TagHash,
30 pub reference: TagHash,
31}
32
33#[derive(BinRead, Debug, Copy, Clone)]
34#[br(repr = u16)]
35pub enum PackageLanguage {
36 None = 0,
37 English = 1,
38 French = 2,
39 Italian = 3,
40 German = 4,
41 Spanish = 5,
42 Japanese = 6,
43 Portuguese = 7,
44 Russian = 8,
45 Polish = 9,
46 SimplifiedChinese = 10,
47 TraditionalChinese = 11,
48 SpanishLatAm = 12,
49 Korean = 13,
50}
51
52impl PackageLanguage {
53 pub fn english_or_none(&self) -> bool {
54 matches!(self, Self::None | Self::English)
55 }
56}
57
58pub trait Package: Send + Sync {
59 fn endianness(&self) -> binrw::Endian;
60
61 fn pkg_id(&self) -> u16;
62 fn patch_id(&self) -> u16;
63
64 fn hash64_table(&self) -> Vec<UHashTableEntry>;
67
68 fn named_tags(&self) -> Vec<PackageNamedTagEntry>;
69
70 fn entries(&self) -> &[UEntryHeader];
71
72 fn entry(&self, index: usize) -> Option<UEntryHeader>;
73
74 fn language(&self) -> PackageLanguage;
75
76 fn platform(&self) -> PackagePlatform;
77
78 fn get_block(&self, index: usize) -> anyhow::Result<Arc<Vec<u8>>>;
81
82 fn read_entry(&self, index: usize) -> anyhow::Result<Vec<u8>> {
84 let _span = tracing::debug_span!("Package::read_entry").entered();
85 let entry = self
86 .entry(index)
87 .ok_or(anyhow!("Entry index is out of range"))?;
88
89 let mut buffer = Vec::with_capacity(entry.file_size as usize);
90 let mut current_offset = 0usize;
91 let mut current_block = entry.starting_block;
92
93 while current_offset < entry.file_size as usize {
94 let remaining_bytes = entry.file_size as usize - current_offset;
95 let block_data = self.get_block(current_block as usize)?;
96
97 if current_block == entry.starting_block {
98 let block_start_offset = entry.starting_block_offset as usize;
99 let block_remaining = block_data.len() - block_start_offset;
100 let copy_size = if block_remaining < remaining_bytes {
101 block_remaining
102 } else {
103 remaining_bytes
104 };
105
106 buffer.extend_from_slice(
107 &block_data[block_start_offset..block_start_offset + copy_size],
108 );
109
110 current_offset += copy_size;
111 } else if remaining_bytes < block_data.len() {
112 buffer.extend_from_slice(&block_data[..remaining_bytes]);
114 current_offset += remaining_bytes;
115 } else {
116 buffer.extend_from_slice(&block_data[..]);
118 current_offset += block_data.len();
119 }
120
121 current_block += 1;
122 }
123
124 Ok(buffer)
125 }
126
127 fn read_tag(&self, tag: TagHash) -> anyhow::Result<Vec<u8>> {
130 ensure!(tag.pkg_id() == self.pkg_id());
131 self.read_entry(tag.entry_index() as _)
132 }
133
134 fn get_all_by_reference(&self, reference: u32) -> Vec<(usize, UEntryHeader)> {
148 self.entries()
149 .iter()
150 .enumerate()
151 .filter(|(_, e)| e.reference == reference)
152 .map(|(i, e)| (i, e.clone()))
153 .collect()
154 }
155
156 fn get_all_by_type(&self, etype: u8, esubtype: Option<u8>) -> Vec<(usize, UEntryHeader)> {
157 self.entries()
158 .iter()
159 .enumerate()
160 .filter(|(_, e)| {
161 e.file_type == etype && esubtype.map(|t| t == e.file_subtype).unwrap_or(true)
162 })
163 .map(|(i, e)| (i, e.clone()))
164 .collect()
165 }
166}
167
168pub fn classify_file_prebl(ftype: u8, fsubtype: u8) -> String {
170 match (ftype, fsubtype) {
171 (26, 5) => "bnk".to_string(),
173 (26, 6) => "wem".to_string(),
175 (26, 7) => "hkx".to_string(),
177 (27, _) => "usm".to_string(),
179 (32, 1) => "texture.header".to_string(),
180 (32, 2) => "texture_cube.header".to_string(),
181 (32, 4) => "vertex.header".to_string(),
182 (32, 6) => "index.header".to_string(),
183 (40, 4) => "vertex.data".to_string(),
184 (40, 6) => "index.data".to_string(),
185 (48, 1) => "texture.data".to_string(),
186 (48, 2) => "texture_cube.data".to_string(),
187 (41, shader_type) => {
189 let ty = match shader_type {
190 0 => "fragment".to_string(),
191 1 => "vertex".to_string(),
192 6 => "compute".to_string(),
193 u => format!("unk{u}"),
194 };
195
196 format!("cso.{ty}")
197 }
198 (8, _) => "8080".to_string(),
199 _ => "bin".to_string(),
200 }
201}
202
203#[derive(
204 serde::Serialize,
205 serde::Deserialize,
206 clap::ValueEnum,
207 PartialEq,
208 Eq,
209 Debug,
210 Clone,
211 Copy,
212 BinRead,
213)]
214#[br(repr = u16)]
215pub enum PackagePlatform {
216 Tool32,
217 Win32,
218 Win64,
219 X360,
220 PS3,
221 Tool64,
222 Win64v1,
223 PS4,
224 XboxOne,
225 Stadia,
226 PS5,
227 Scarlett,
228}
229
230impl PackagePlatform {
231 pub fn endianness(&self) -> Endian {
232 match self {
233 Self::PS3 | Self::X360 => Endian::Big,
234 Self::XboxOne | Self::PS4 | Self::Win64 => Endian::Little,
235 _ => Endian::Little,
236 }
237 }
238}
239
240impl FromStr for PackagePlatform {
241 type Err = anyhow::Error;
242
243 fn from_str(s: &str) -> Result<Self, Self::Err> {
244 Ok(match s {
245 "ps3" => Self::PS3,
246 "ps4" => Self::PS4,
247 "360" => Self::X360,
248 "w64" => Self::Win64,
249 "xboxone" => Self::XboxOne,
250 s => return Err(anyhow!("Invalid platform '{s}'")),
251 })
252 }
253}
254
255impl Display for PackagePlatform {
256 fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
257 match self {
258 PackagePlatform::Tool32 => f.write_str("tool32"),
259 PackagePlatform::Win32 => f.write_str("w32"),
260 PackagePlatform::Win64 => f.write_str("w64"),
261 PackagePlatform::X360 => f.write_str("360"),
262 PackagePlatform::PS3 => f.write_str("ps3"),
263 PackagePlatform::Tool64 => f.write_str("tool64"),
264 PackagePlatform::Win64v1 => f.write_str("w64"),
265 PackagePlatform::PS4 => f.write_str("ps4"),
266 PackagePlatform::XboxOne => f.write_str("xboxone"),
267 PackagePlatform::Stadia => f.write_str("stadia"),
268 PackagePlatform::PS5 => f.write_str("ps5"),
269 PackagePlatform::Scarlett => f.write_str("scarlett"),
270 }
271 }
272}