---
id: wintesla-port
title: "The WinTesla Windows Port — the base everything builds on"
status: established
source_sections: "PROGRESS_LOG.md §5b, §8"
related_topics: [source-completeness, rendering, build-and-run, multiplayer]
key_terms: [WinTesla, L4D3D, MUNGA, RP, DPL]
---

# The WinTesla Windows Port

The `Elsewhen RP411` archive is a **working Windows port of the MUNGA engine** (VS2005,
`WinTesla.sln`). It means the hardest infrastructure is **already solved** — the bt411 build sits
on top of it. Full detail: `docs/PROGRESS_LOG.md §5b, §8`.

## What WinTesla already did (do NOT rebuild)
- **Renderer bypass: DONE** — `MUNGA_L4/L4D3D.cpp` + `DXUtils` replace libDPL / the IG board with
  Direct3D9. No `libdpl.lib` in the tree. (The early from-scratch D3D9 viewer was retired and removed.) [T1]
- **Audio: DONE** — OpenAL + libsndfile replacing the HMI "SOS" engine. [T1]
- **L4 HAL on Windows + the VS build system: DONE.** [T1]
- **Red Planet game logic: COMPLETE & buildable** — `VTV/VTVMPPR/WEAPSYS/...`. RP is at/near playable. [T1]
- **Multiplayer: the DOS `NETNUB` driver is already replaced by a ~3.5k-line WinSock2 TCP
  reimplementation** (`MUNGA_L4/L4NET.CPP`) + the master/replicant distributed-sim core. See
  [[multiplayer]]. [T1]

## What BT still needs (the only remaining work below the game layer is NONE)
Everything below the game layer — engine, renderer, audio, HAL, build — exists and is shared. The
ONLY thing BT needs is its **game-logic source**, which is gone (see [[source-completeness]]) → it
must be **reconstructed**, with the three anchors (BT headers + the WinTesla engine to compile
against + RP's parallel code + the binary oracle). [T2]

## Build implications
- `WinTesla.sln` is **VS2005** and hard-depends on the **legacy DirectX SDK (June 2010)** (`d3dx9`,
  `dinput`, `dxerr` — all removed from the modern Windows SDK). The DXSDK is installed at
  `C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\`. [T2]
- The shared engine builds GREEN to `munga_engine.lib` via CMake/MSVC Win32 (see [[build-and-run]]).
  Recipe gotchas (include-path shadowing, the CAMMGR/time.h fixes, the ATL shim) are in
  `docs/PROGRESS_LOG.md §8`. [T2]

## Roadmap position
Old plan ("build a libDPL shim + port the engine") is **superseded** — WinTesla did it. New plan:
reuse the WinTesla engine (shared) + reconstruct the BT game library (`BT410_L4` + game logic). The
from-scratch libDPL shim is no longer needed. Phases 4-8 (BT game layer + pod bring-up) still apply.
[T2]

## Key Relationships
- Solves: the infrastructure that [[source-completeness]] would otherwise require.
- Feeds: [[build-and-run]], [[rendering]], [[multiplayer]].
