salt/2077-gps-mod
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Decode GPS result point array

Browse Source
This commit is contained in:
Salt
2026-06-20 13:24:32 -05:00
parent 701d85e81e
commit aaf319e1b4
2 changed files with 61 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/red4ext-logging-shim.md
+9 -5
View File
@@ -155,9 +155,12 @@ Latest GPS-query finding:
- `GPSQueryResultFetch 0x7094b8` returning `1` is the route-solve completion
signal. The caller at return RVA `0x52069c` starts handling a completed
result, then the caller at return RVA `0x520783` drains result records.
The visible route record currently appears as a packed point/count pair in
the object passed as `outPath`: the deliberate routes produced `11`, `16`,
`15`, and `14` point-like counts.
The visible route record appears in the object passed as `outPath`: offset
`0x30` is a packed point count (`N/N` on the first drain record, then `N`),
and offset `0x28` looks like the route point array pointer. The deliberate
routes produced the familiar `11`, `16`, `15`, and `14` point-like counts in
the 2026-06-20 19:03 run, and `11`, `16`, `15`, `11` in the 19:16 map
routine where the custom pin was different.
- Static disassembly confirms `0xaa5704` takes `(manager, queryId)` and returns
a small status code; one caller checks for value `1`. Runtime logging shows
this is HUD/display lifecycle polling rather than solve completion: it polls
@@ -165,8 +168,9 @@ Latest GPS-query finding:
not rendered.
- The current installed probe adds a read-only dump of suspected result-object
fields around offsets `0x20` through `0x5f` on successful active-route
fetches. This is intended to identify whether the returned route is a raw
solver path, a smoothed draw path, or both.
fetches, including first/last route point candidates from `outPath + 0x28`.
This is intended to identify whether the returned route is a raw solver path,
a smoothed draw path, or both.
Build and install from the Fedora toolbox:
red4ext/EdgeWeightGPS/src/Main.cpp
+52
View File
@@ -743,6 +743,27 @@ struct Vector4Value
float w;
};
struct Vector3Value
{
float x;
float y;
float z;
};
void AppendVector3Pointer(std::ostringstream& aLine, const char* aLabel, const void* aVector)
{
Vector3Value value{};
aLine << " " << aLabel << "=";
if (aVector && TryReadMemory(aVector, value))
{
aLine << "(" << value.x << "," << value.y << "," << value.z << ")";
}
else
{
aLine << "<unreadable>";
}
}
void AppendVector4Pointer(std::ostringstream& aLine, const char* aLabel, const void* aVector)
{
Vector4Value value{};
@@ -768,6 +789,32 @@ void AppendVector4Field(std::ostringstream& aLine, const char* aLabel, void* aOb
AppendVector4Pointer(aLine, aLabel, reinterpret_cast<const void*>(reinterpret_cast<uintptr_t>(aObject) + aOffset));
}
void AppendVector3ListCandidate(std::ostringstream& aLine, const char* aPrefix, void* aObject, uintptr_t aDataOffset,
uintptr_t aCountOffset, uintptr_t aStride)
{
uint32_t count = 0;
auto* data = ReadPointerField(aObject, aDataOffset);
TryReadMemory(reinterpret_cast<const void*>(reinterpret_cast<uintptr_t>(aObject) + aCountOffset), count);
const auto dataLabel = std::string(aPrefix) + "_data";
const auto countLabel = std::string(aPrefix) + "_count";
AppendPointerWithRva(aLine, dataLabel.c_str(), data);
aLine << " " << countLabel << "=" << count;
if (!data || reinterpret_cast<uintptr_t>(data) < 0x10000 || count == 0 || count > 10000)
{
return;
}
AppendVector3Pointer(aLine, (std::string(aPrefix) + "_first3").c_str(), data);
if (count > 1)
{
AppendVector3Pointer(aLine, (std::string(aPrefix) + "_last3").c_str(),
reinterpret_cast<const void*>(reinterpret_cast<uintptr_t>(data) +
static_cast<uintptr_t>(count - 1) * aStride));
}
}
void AppendVectorListCandidate(std::ostringstream& aLine, const char* aPrefix, void* aObject, uintptr_t aDataOffset,
uintptr_t aCountOffset, uintptr_t aStride)
{
@@ -832,6 +879,11 @@ void AppendGpsResultObjectSummary(std::ostringstream& aLine, const char* aPrefix
}
AppendBytesField(aLine, (std::string(aPrefix) + "_bytes20").c_str(), aResultObject, 0x20, 0x40);
AppendUint32Field(aLine, (std::string(aPrefix) + "_u20").c_str(), aResultObject, 0x20);
AppendUint32Field(aLine, (std::string(aPrefix) + "_u24").c_str(), aResultObject, 0x24);
AppendPointerField(aLine, (std::string(aPrefix) + "_ptr28").c_str(), aResultObject, 0x28);
AppendVector3ListCandidate(aLine, (std::string(aPrefix) + "_vec28s12").c_str(), aResultObject, 0x28, 0x30, 12);
AppendVectorListCandidate(aLine, (std::string(aPrefix) + "_vec28s16").c_str(), aResultObject, 0x28, 0x30, 16);
AppendVectorListCandidate(aLine, (std::string(aPrefix) + "_vec20").c_str(), aResultObject, 0x20, 0x2C, 12);
AppendVectorListCandidate(aLine, (std::string(aPrefix) + "_vec20s16").c_str(), aResultObject, 0x20, 0x2C, 16);
AppendUint32Field(aLine, (std::string(aPrefix) + "_u2c").c_str(), aResultObject, 0x2C);