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Decode save-side region policy rows

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This commit is contained in:
Jan Petykiewicz 2026-04-18 08:41:29 -07:00
commit 91651f3a9a
2 changed files with 105 additions and 12 deletions
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102
crates/rrt-runtime/src/smp.rs
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@ -1648,7 +1648,7 @@ pub struct SmpSaveTrainCollectionDirectoryProbe {
pub evidence: Vec<String>,
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct SmpSaveRegionRecordTripletEntryProbe {
pub record_index: usize,
pub name: String,
@ -1657,9 +1657,16 @@ pub struct SmpSaveRegionRecordTripletEntryProbe {
pub profile_tag_relative_offset: usize,
pub policy_chunk_len: usize,
pub profile_chunk_len: usize,
pub policy_leading_f32_0: f32,
pub policy_leading_f32_1: f32,
pub policy_leading_f32_2: f32,
#[serde(default)]
pub policy_reserved_dwords: Vec<u32>,
pub policy_trailing_word: u16,
pub policy_trailing_word_hex: String,
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct SmpSaveRegionRecordTripletProbe {
pub profile_family: String,
pub source_kind: String,
@ -3175,9 +3182,25 @@ pub fn load_save_slice_from_report(
}
if let Some(probe) = &report.save_region_record_triplet_probe {
notes.push(format!(
"Raw save tagged region records also expose {} repeated 0x55f1/0x55f2/0x55f3 triplets in the records span; first name={:?}.",
"Raw save tagged region records also expose {} repeated 0x55f1/0x55f2/0x55f3 triplets in the records span; first name={:?}, first policy lanes=({:.3}, {:.3}, {:.3}), trailing_word={}.",
probe.record_count,
probe.entries.first().map(|entry| entry.name.as_str())
probe.entries.first().map(|entry| entry.name.as_str()),
probe.entries
.first()
.map(|entry| entry.policy_leading_f32_0)
.unwrap_or_default(),
probe.entries
.first()
.map(|entry| entry.policy_leading_f32_1)
.unwrap_or_default(),
probe.entries
.first()
.map(|entry| entry.policy_leading_f32_2)
.unwrap_or_default(),
probe.entries
.first()
.map(|entry| entry.policy_trailing_word_hex.as_str())
.unwrap_or("0x0000")
));
}
if let Some(probe) = &report.save_placed_structure_collection_header_probe {
@ -3565,9 +3588,24 @@ pub fn inspect_save_company_and_chairman_analysis_bytes(
}
if let Some(triplets) = region_record_triplets.as_ref() {
notes.push(format!(
"Region analysis now also exports {} tagged 0x55f1/0x55f2/0x55f3 record triplets; first serialized region name={:?}.",
"Region analysis now also exports {} tagged 0x55f1/0x55f2/0x55f3 record triplets; first serialized region name={:?}, first policy lanes=({:.3}, {:.3}, {:.3}).",
triplets.record_count,
triplets.entries.first().map(|entry| entry.name.as_str())
triplets.entries.first().map(|entry| entry.name.as_str()),
triplets
.entries
.first()
.map(|entry| entry.policy_leading_f32_0)
.unwrap_or_default(),
triplets
.entries
.first()
.map(|entry| entry.policy_leading_f32_1)
.unwrap_or_default(),
triplets
.entries
.first()
.map(|entry| entry.policy_leading_f32_2)
.unwrap_or_default()
));
}
if let Some(header) = report
@ -9939,6 +9977,19 @@ fn parse_save_region_record_triplet_probe(
let name = parse_save_len_prefixed_ascii_name(name_payload)?;
let policy_chunk_len =
profile_tag_relative_offset.checked_sub(policy_tag_relative_offset + 4)?;
if policy_chunk_len != 0x1a {
return None;
}
let policy_payload =
records_payload.get(policy_tag_relative_offset + 4..profile_tag_relative_offset)?;
let policy_leading_f32_0 = f32::from_bits(read_u32_at(policy_payload, 0)?);
let policy_leading_f32_1 = f32::from_bits(read_u32_at(policy_payload, 4)?);
let policy_leading_f32_2 = f32::from_bits(read_u32_at(policy_payload, 8)?);
let mut policy_reserved_dwords = Vec::with_capacity(3);
for dword_index in 0..3 {
policy_reserved_dwords.push(read_u32_at(policy_payload, 12 + dword_index * 4)?);
}
let policy_trailing_word = read_u16_at(policy_payload, 24)?;
let profile_chunk_len =
next_record_relative_offset.checked_sub(profile_tag_relative_offset + 4)?;
entries.push(SmpSaveRegionRecordTripletEntryProbe {
@ -9949,6 +10000,12 @@ fn parse_save_region_record_triplet_probe(
profile_tag_relative_offset,
policy_chunk_len,
profile_chunk_len,
policy_leading_f32_0,
policy_leading_f32_1,
policy_leading_f32_2,
policy_reserved_dwords,
policy_trailing_word,
policy_trailing_word_hex: format!("0x{policy_trailing_word:04x}"),
});
}
Some(SmpSaveRegionRecordTripletProbe {
@ -9965,6 +10022,7 @@ fn parse_save_region_record_triplet_probe(
"decoded {} region record triplets with one len-prefixed name chunk, one fixed policy chunk, and one trailing profile payload chunk per record",
record_count
),
"each fixed 0x55f2 policy chunk currently decodes as three leading f32 lanes, three reserved dwords, and one trailing u16 word".to_string(),
],
})
}
@ -16951,6 +17009,12 @@ mod tests {
profile_tag_relative_offset: 0x2e,
policy_chunk_len: 0x1a,
profile_chunk_len: 0x40,
policy_leading_f32_0: 368.0,
policy_leading_f32_1: 0.0,
policy_leading_f32_2: 92.0,
policy_reserved_dwords: vec![0, 0, 0],
policy_trailing_word: 1,
policy_trailing_word_hex: "0x0001".to_string(),
},
SmpSaveRegionRecordTripletEntryProbe {
record_index: 1,
@ -16960,6 +17024,12 @@ mod tests {
profile_tag_relative_offset: 0x9c,
policy_chunk_len: 0x1a,
profile_chunk_len: 0x20,
policy_leading_f32_0: 552.0,
policy_leading_f32_1: 0.0,
policy_leading_f32_2: 276.0,
policy_reserved_dwords: vec![0, 0, 0],
policy_trailing_word: 1,
policy_trailing_word_hex: "0x0001".to_string(),
},
],
evidence: vec![],
@ -17305,12 +17375,19 @@ mod tests {
.copy_from_slice(&0x0000520au32.to_le_bytes());
bytes[close_tag_offset..close_tag_offset + 4].copy_from_slice(&0x0000520bu32.to_le_bytes());
let mut cursor = records_tag_offset + 4;
for name in ["Marker09", "Marker10"] {
for (name, x, density, y) in [
("Marker09", 368.0f32, 0.0f32, 92.0f32),
("Marker10", 552.0f32, 1.5f32, 276.0f32),
] {
bytes[cursor..cursor + 2].copy_from_slice(&SAVE_REGION_RECORD_NAME_TAG.to_le_bytes());
bytes[cursor + 4] = name.len() as u8;
bytes[cursor + 5..cursor + 5 + name.len()].copy_from_slice(name.as_bytes());
cursor += 0x10;
bytes[cursor..cursor + 2].copy_from_slice(&SAVE_REGION_RECORD_POLICY_TAG.to_le_bytes());
bytes[cursor + 4..cursor + 8].copy_from_slice(&x.to_bits().to_le_bytes());
bytes[cursor + 8..cursor + 12].copy_from_slice(&density.to_bits().to_le_bytes());
bytes[cursor + 12..cursor + 16].copy_from_slice(&y.to_bits().to_le_bytes());
bytes[cursor + 28..cursor + 30].copy_from_slice(&1u16.to_le_bytes());
cursor += 0x1e;
bytes[cursor..cursor + 2]
.copy_from_slice(&SAVE_REGION_RECORD_PROFILE_TAG.to_le_bytes());
@ -17343,7 +17420,18 @@ mod tests {
assert_eq!(triplet_probe.entries[0].name, "Marker09");
assert_eq!(triplet_probe.entries[0].policy_tag_relative_offset, 0x10);
assert_eq!(triplet_probe.entries[0].profile_tag_relative_offset, 0x2e);
assert_eq!(triplet_probe.entries[0].policy_leading_f32_0, 368.0);
assert_eq!(triplet_probe.entries[0].policy_leading_f32_1, 0.0);
assert_eq!(triplet_probe.entries[0].policy_leading_f32_2, 92.0);
assert_eq!(
triplet_probe.entries[0].policy_reserved_dwords,
vec![0, 0, 0]
);
assert_eq!(triplet_probe.entries[0].policy_trailing_word, 1);
assert_eq!(triplet_probe.entries[1].name, "Marker10");
assert_eq!(triplet_probe.entries[1].policy_leading_f32_0, 552.0);
assert_eq!(triplet_probe.entries[1].policy_leading_f32_1, 1.5);
assert_eq!(triplet_probe.entries[1].policy_leading_f32_2, 276.0);
}
#[test]