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 entry = self
85 .entry(index)
86 .ok_or(anyhow!("Entry index is out of range"))?;
87
88 let mut buffer = Vec::with_capacity(entry.file_size as usize);
89 let mut current_offset = 0usize;
90 let mut current_block = entry.starting_block;
91
92 while current_offset < entry.file_size as usize {
93 let remaining_bytes = entry.file_size as usize - current_offset;
94 let block_data = self.get_block(current_block as usize)?;
95
96 if current_block == entry.starting_block {
97 let block_start_offset = entry.starting_block_offset as usize;
98 let block_remaining = block_data.len() - block_start_offset;
99 let copy_size = if block_remaining < remaining_bytes {
100 block_remaining
101 } else {
102 remaining_bytes
103 };
104
105 buffer.extend_from_slice(
106 &block_data[block_start_offset..block_start_offset + copy_size],
107 );
108
109 current_offset += copy_size;
110 } else if remaining_bytes < block_data.len() {
111 buffer.extend_from_slice(&block_data[..remaining_bytes]);
113 current_offset += remaining_bytes;
114 } else {
115 buffer.extend_from_slice(&block_data[..]);
117 current_offset += block_data.len();
118 }
119
120 current_block += 1;
121 }
122
123 Ok(buffer)
124 }
125
126 fn read_tag(&self, tag: TagHash) -> anyhow::Result<Vec<u8>> {
129 ensure!(tag.pkg_id() == self.pkg_id());
130 self.read_entry(tag.entry_index() as _)
131 }
132
133 fn get_all_by_reference(&self, reference: u32) -> Vec<(usize, UEntryHeader)> {
147 self.entries()
148 .iter()
149 .enumerate()
150 .filter(|(_, e)| e.reference == reference)
151 .map(|(i, e)| (i, e.clone()))
152 .collect()
153 }
154
155 fn get_all_by_type(&self, etype: u8, esubtype: Option<u8>) -> Vec<(usize, UEntryHeader)> {
156 self.entries()
157 .iter()
158 .enumerate()
159 .filter(|(_, e)| {
160 e.file_type == etype && esubtype.map(|t| t == e.file_subtype).unwrap_or(true)
161 })
162 .map(|(i, e)| (i, e.clone()))
163 .collect()
164 }
165}
166
167pub fn classify_file_prebl(ftype: u8, fsubtype: u8) -> String {
169 match (ftype, fsubtype) {
170 (26, 5) => "bnk".to_string(),
172 (26, 6) => "wem".to_string(),
174 (26, 7) => "hkx".to_string(),
176 (27, _) => "usm".to_string(),
178 (32, 1) => "texture.header".to_string(),
179 (32, 2) => "texture_cube.header".to_string(),
180 (32, 4) => "vertex.header".to_string(),
181 (32, 6) => "index.header".to_string(),
182 (40, 4) => "vertex.data".to_string(),
183 (40, 6) => "index.data".to_string(),
184 (48, 1) => "texture.data".to_string(),
185 (48, 2) => "texture_cube.data".to_string(),
186 (41, shader_type) => {
188 let ty = match shader_type {
189 0 => "fragment".to_string(),
190 1 => "vertex".to_string(),
191 6 => "compute".to_string(),
192 u => format!("unk{u}"),
193 };
194
195 format!("cso.{ty}")
196 }
197 (8, _) => "8080".to_string(),
198 _ => "bin".to_string(),
199 }
200}
201
202#[derive(
203 serde::Serialize,
204 serde::Deserialize,
205 clap::ValueEnum,
206 PartialEq,
207 Eq,
208 Debug,
209 Clone,
210 Copy,
211 BinRead,
212)]
213#[br(repr = u16)]
214pub enum PackagePlatform {
215 Tool32,
216 Win32,
217 Win64,
218 X360,
219 PS3,
220 Tool64,
221 Win64v1,
222 PS4,
223 XboxOne,
224 Stadia,
225 PS5,
226 Scarlett,
227}
228
229impl PackagePlatform {
230 pub fn endianness(&self) -> Endian {
231 match self {
232 Self::PS3 | Self::X360 => Endian::Big,
233 Self::XboxOne | Self::PS4 | Self::Win64 => Endian::Little,
234 _ => Endian::Little,
235 }
236 }
237}
238
239impl FromStr for PackagePlatform {
240 type Err = anyhow::Error;
241
242 fn from_str(s: &str) -> Result<Self, Self::Err> {
243 Ok(match s {
244 "ps3" => Self::PS3,
245 "ps4" => Self::PS4,
246 "360" => Self::X360,
247 "w64" => Self::Win64,
248 "xboxone" => Self::XboxOne,
249 s => return Err(anyhow!("Invalid platform '{s}'")),
250 })
251 }
252}
253
254impl Display for PackagePlatform {
255 fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
256 match self {
257 PackagePlatform::Tool32 => f.write_str("tool32"),
258 PackagePlatform::Win32 => f.write_str("w32"),
259 PackagePlatform::Win64 => f.write_str("w64"),
260 PackagePlatform::X360 => f.write_str("360"),
261 PackagePlatform::PS3 => f.write_str("ps3"),
262 PackagePlatform::Tool64 => f.write_str("tool64"),
263 PackagePlatform::Win64v1 => f.write_str("w64"),
264 PackagePlatform::PS4 => f.write_str("ps4"),
265 PackagePlatform::XboxOne => f.write_str("xboxone"),
266 PackagePlatform::Stadia => f.write_str("stadia"),
267 PackagePlatform::PS5 => f.write_str("ps5"),
268 PackagePlatform::Scarlett => f.write_str("scarlett"),
269 }
270 }
271}