From 28be9fc25002fb1c0aeeac3202f1e250d4ad2855 Mon Sep 17 00:00:00 2001
From: lifegpc <root@lifegpc.com>
Date: Fri, 1 May 2026 23:44:50 +0800
Subject: [PATCH] Add PinPointCrypt (untested)

---
 msg_tool_xp3data/crypt.json                   | 12 ++++++++
 src/scripts/kirikiri/archive/xp3/crypt/mod.rs | 28 +++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/msg_tool_xp3data/crypt.json b/msg_tool_xp3data/crypt.json
index c6be55b..b1d22cf 100644
--- a/msg_tool_xp3data/crypt.json
+++ b/msg_tool_xp3data/crypt.json
@@ -416,6 +416,10 @@
         "$type": "HashCrypt",
         "Title": "ドM妹おねだり個人レッスン～私のSEX家庭教師お兄ちゃん～ | 义妹私教辅导~哥哥我是家庭教师"
     },
+    "Dosukebe Bitch na Enkou...": {
+        "$type": "PinPointCrypt",
+        "Title": "ドスケベビッチな援交○学生（高学年）のセックス三昧夏休み ～あかり＆雪乃～"
+    },
     "Dracu-Riot!": {
         "$type": "CxEncryption",
         "Mask": 752,
@@ -2141,6 +2145,10 @@
         "$type": "FlyingShineCrypt",
         "Title": "相姦恥療病棟 ～ナースはママで、女医は叔母"
     },
+    "Soukou Seiki Ysphere": {
+        "$type": "PinPointCrypt",
+        "Title": "装煌聖姫イースフィア～淫虐の洗脳改造～"
+    },
     "Sousaku Kanojo no Ren'ai Koushiki": {
         "$type": "AkabeiCrypt",
         "Seed": 798088789,
@@ -2333,6 +2341,10 @@
         "$type": "PoringSoftCrypt",
         "Title": "つばさの丘の姫王 A red and blue moon -finite loop-"
     },
+    "Tsuma ga Kakushiteita Video...": {
+        "$type": "PinPointCrypt",
+        "Title": "妻が隠していたビデオ… ～元カレ寝取らせ観察記～"
+    },
     "Tsuma Kai -Tsuma Gai-": {
         "$type": "FlyingShineCrypt",
         "Title": "貸し出し妻、満里奈の“ネトラセ”報告 外伝1 ―女子校生、満里奈の性感開発―"
diff --git a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
index 6df397a..ab9c14b 100644
--- a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
+++ b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
@@ -244,6 +244,7 @@ enum CryptType {
         key_seq: Base64Bytes,
     },
     FestivalCrypt,
+    PinPointCrypt,
 }
 
 #[derive(Clone, Debug, Deserialize)]
@@ -381,6 +382,7 @@ impl Schema {
                 Box::new(SmxCrypt::new(self.base.clone(), *mask, &key_seq.bytes)?)
             }
             CryptType::FestivalCrypt => Box::new(FestivalCrypt::new(self.base.clone())),
+            CryptType::PinPointCrypt => Box::new(PinPointCrypt::new(self.base.clone())),
         })
     }
 }
@@ -504,6 +506,7 @@ macro_rules! seek_reader_impl {
         struct $reader<$t: Read> {
             #[skip_fmt]
             inner: $t,
+            #[allow(unused)]
             /// Start offset of the current xp3 entry.
             seg_start: u64,
             seg_size: u64,
@@ -1880,6 +1883,31 @@ impl<R: Read> Read for FestivalCryptReader<R> {
     }
 }
 
+seek_crypt_impl!(PinPointCrypt, PinPointCryptReader<T>);
+
+impl<R: Read> PinPointCryptReader<R> {
+    #[inline(always)]
+    fn count_set_bits(x: u8) -> u32 {
+        let mut bit_count = ((x & 0x55) + ((x >> 1) & 0x55)) as u32;
+        bit_count = (bit_count & 0x33) + ((bit_count >> 2) & 0x33);
+        ((bit_count & 0xF) + ((bit_count >> 4) & 0xF)) & 0xF
+    }
+}
+
+impl<R: Read> Read for PinPointCryptReader<R> {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        let readed = self.inner.read(buf)?;
+        for t in (&mut buf[..readed]).iter_mut() {
+            let bit_count = Self::count_set_bits(*t);
+            if bit_count > 0 {
+                *t = (*t).rotate_left(bit_count);
+            }
+        }
+        self.pos += readed as u64;
+        Ok(readed)
+    }
+}
+
 #[test]
 fn test_deserialize_crypt() {
     for (key, schema) in CRYPT_SCHEMA.iter() {