MW2 Android v0.0.2 (Snapdragon & Vulkan 1.0 Update)

Modern Warfare 2 Android — Release v0.0.2 (Snapdragon & Vulkan 1.0 Update)

Version 0.0.2 brings comprehensive fixes for Qualcomm Snapdragon (Adreno) chips, lowers the hardware compatibility floor to Vulkan 1.0, introduces ARM64 Prime-core CPU thread affinity, implements TBDR mobile tile-rendering optimizations, and adds an offline mod directory overlay (mods/).

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🎮 What's New in v0.0.2

⚡ Qualcomm Snapdragon (Adreno) Fixes

• Black Terrain, Skybox & Flicker Resolution:
  • Automatically identifies Adreno GPUs (vendorID == 0x5143) and routes BC compressed textures through software SIMD decoding to prevent Adreno's 1-bit alpha sampling hardware bug.
  • Representation-safe texture uploads and restaging: guarantees format consistency and validates payload byte size against image metadata, fixing black screens, flickering foliage, and missing geometry.
  • Option MW2_FORCE_BC_HW=1 provided for users running custom clean Mesa Turnip drivers.
• Snapdragon Prime-Core Thread Affinity:
  • Automatically detects ARM big.LITTLE / tri-cluster architectures (Snapdragon 865 through 8 Gen 3).
  • Pinned main game loop to the Prime Core (Cortex-X1/X2/X3/X4), recorder/dispatch thread to Performance Cores, and background tasks to Efficiency Cores via Bionic sched_setaffinity.

📱 Vulkan 1.0 Mobile Support

• Lowered Manifest Feature Requirement:
  • Decreased android.hardware.vulkan.version requirement from 0x401000 (1.1) to 0x400000 (1.0).
  • Clean feature decoupling: dynamic rendering and extended dynamic state are dynamically negotiated, with automatic fallback to classic Vulkan 1.0 render passes and negative-viewport maintenance extensions.
• TBDR Mobile RenderPass Optimization:
  • Configured VK_ATTACHMENT_STORE_OP_DONT_CARE on stencil and temporary depth attachments to prevent GPU tile-memory thrashing on mobile SoCs.

🧩 VFS Mod Directory Overlay

• Offline Bots & Loose Asset Support:
  • Transparent virtual filesystem overlay via MW2_MOD_DIR or <GameRoot>/mods/.
  • Enables loading offline Bot Warfare GSC mods, custom scripts, localized language files, and loose assets without repacking .ff FastFiles.

🛡️ Hardened Tooling & Asset Ingestion

• XDVDFS Disc Extractor (tools/xdvdfs.py):
  • Added strict sector bounds validation against total image size.
  • Prevented infinite recursion and directory loops.
  • Sanitized filenames against path traversal (.., slashes) and enforced destination containment.
  • Added truncated read detection.
• Asset Fetching (tools/fetch_asset.py):
  • Fixed order-of-operations bug where files were unlinked prior to reading header bytes.
  • Added zip-bomb resource limits (capped total unpacked bytes to 15 GiB and maximum entry count to 50,000).

🔄 Upstream Engine Synchronization

• Merged upstream FOV slider support and frame arena write-combining optimization.
• Added network and security notices for LAN / matchmaking.

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📦 Requirements

• OS: Android 8.0 (Oreo) or higher (API 26+)
• Architecture: arm64-v8a (64-bit ARM)
• GPU: Vulkan 1.0 or higher (Snapdragon / Adreno 600+, Dimensity / Mali-G57+, Exynos / Xclipse, Tensor)
• RAM: Minimum 4 GB, Recommended 6 GB+
• Storage: ~7 GB free internal storage for game data
• Game Files: An unmodified Xbox 360 Modern Warfare 2 disc image (.iso)

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📥 Installation Guide

1. Download and install app-campaign-release.apk from the Assets below.
2. Transfer your legal Modern Warfare 2 Xbox 360 disc image (.iso) to your Android device (e.g. Downloads folder).
3. Open the MW2 launcher on your phone.
4. Tap Select ISO / Install Game, choose your .iso file, and wait for extraction.
5. Tap Launch Campaign and enjoy 60 FPS native Modern Warfare 2!

MW2 Android v0.0.1 (Initial Release)

Modern Warfare 2 Android — Release v0.0.1 (Alpha)

Initial release of the native Modern Warfare 2 (2009) recompilation port for Android ARM64 devices (com.mw2.recomp.sp).

This project statically recompiles the original Xbox 360 PowerPC executable (default.xex) into native 64-bit ARM machine code (libmw2.so), featuring an integrated Android launcher, XDVDFS disc installer, Vulkan rendering backend, and low-latency AAudio subsystem.

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🎮 What's Included in v0.0.1

🚀 Core Engine & Native Runtime

• Native ARM64 Execution: Powered by XenonRecomp static PowerPC recompiler, running without CPU emulation overhead.
• Vulkan Renderer Backend:
  • Full Vulkan 1.1 legacy fallback path for widespread mobile SoC compatibility (Adreno & Mali).
  • High-performance shader translator converting Xenos microcode to SPIR-V.
  • Dedicated application-level shader cache with start-up prewarming to eliminate in-game shader compilation stutter.
• Audio Subsystem:
  • Low-latency AAudio native sink at 48 kHz stereo with linear sample interpolation.
  • Smooth APU mixer scheduling with burst-free catch-up logic and zero real-time heap allocations.
• Input & Controls:
  • Virtual on-screen touch overlay with multi-touch support.
  • Full physical gamepad support (Bluetooth / USB-C controllers: Xbox, DualShock/DualSense, generic HID).

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🛡️ Stability & Security Hardening (Deep Audit Fixes)

This release incorporates all fixes from our comprehensive security and stability source audit:

• GPU Pipeline Stability (Mali-G68 / Dimensity & Exynos):
  • Bypassed persistent VkPipelineCache on Arm Mali GPUs to eliminate documented driver cache deadlocks during monolithic pipeline compilation.
  • Injected static dummy viewports and scissors to prevent mobile driver null-pointer dereferences under dynamic state configurations.
  • Configured null pColorBlendState on depth-only subpasses (colourFormat == VK_FORMAT_UNDEFINED) complying with Vulkan specifications.
  • Restored depthControl and modeCntl in legacy Vulkan 1.1 shader cache prewarming keys.
  • Synchronized all VkPipelineCache accesses across draw pipeline compilation, library linking, and cache saving.
• Storage & Path Traversal Prevention:
  • Sanitized custom GPU driver imports in DriverStore.kt, strictly rejecting dot-segment traversal (. and ..) and enforcing canonical storage containment.
  • Staged driver replacement transactionally to eliminate risks of app data loss.
• Hardened XDVDFS Disc Extraction:
  • Guaranteed imageSize_ initialization prior to partition probing in launcher/disc.cpp, supporting all standard and non-zero partition disc layouts.
  • Bounded allocation constraints on directory metadata (32 MB cap) and verified entry boundaries against image bounds.
  • Sanitized extracted filenames against path traversal components (/, \, ..).
  • Added 3-point sample chunk integrity validation (header, middle, and tail) before skipping existing matching-size assets.
• Installer Safety:
  • Aborts extraction immediately if target device storage is insufficient.
  • Verifies exact stream copy byte counts to prevent corrupted or truncated source files.

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📦 Requirements

• OS: Android 8.0 (Oreo) or higher (API 26+)
• Architecture: arm64-v8a (64-bit ARM)
• GPU: Vulkan 1.1 compatible (Adreno 600+, Mali-G57/G68/G77/G78+, Immortalis)
• RAM: Minimum 4 GB, Recommended 6 GB+
• Storage: ~7 GB free internal storage for game data
• Game Files: An unmodified Xbox 360 Modern Warfare 2 disc image (.iso)

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📥 Installation Guide

1. Download and install app-campaign-release.apk from the Assets below.
2. Transfer your legal Modern Warfare 2 Xbox 360 disc image (.iso) to your Android device (e.g. Downloads folder).
3. Open the MW2 launcher on your phone.
4. Tap Select ISO / Install Game, choose your .iso file, and wait for the extraction to finish.
5. Tap Launch Campaign and enjoy!