Features Removed/Added in the Wamsoft Fork¶

This page summarizes the removed legacy features and newly added features in the fork maintained by Wamsoft Ltd. Partnership (wamsoft/krkrz_dev), relative to upstream Kirikiri Z / Kirikiri 2.

For removals of individual TJS APIs, also see Features Removed in Kirikiri Z.

Removed legacy features¶

Implementations that depended on legacy Windows APIs or stood in the way of cross-platform support have mainly been replaced or removed.

Removed	Replacement / current status
DirectSound (audio output)	miniaudio (the audio engine shared by all builds; WASAPI shared mode, multichannel support)
DirectShow / EVR-based movie playback (`dsmovie` / `dslayerd`, etc.)	Unified to CPU decoding (webm=movie-player / MPEG-1=pl_mpeg / others=Media Foundation SourceReader) + Direct3D 11 compositing
The krmovie plugin boundary (tp_stub / V2Link DLL boundary)	krmovie is built directly into the exe (calls engine symbols directly)
krflash / `.swf` (Flash movies)	Removed
Display via Direct3D 9 / DirectDraw (exclusive fullscreen, etc.)	Direct3D 11 / DXGI (flip-model swap chain, borderless fullscreen)
DirectInput (gamepad / mouse)	XInput for gamepads, `WM_MOUSEWHEEL` for the mouse wheel (multi-pad support via the shared `tTVPPadManager`)
NASM assembly optimizations for TLG6	C reference implementation (`tvpgl.c`). SSE2/AVX2/NEON SIMD implementations exist separately
JPEG XR (`.jxr`) loader	Removed (no replacement)
`timeBeginPeriod` / `timeGetTime` timers	QueryPerformanceCounter + high-resolution waitable timer
Various legacy Win32 compatibility shims (XP/Vista/7/8 fallbacks)	Linked directly with Windows 10 or later as the minimum target
Various Perl generators (`makestub.pl` / `gentext*.pl`, etc.)	Python generators (byte-identical output)

Main TJS classes / APIs removed from the core¶

The following were removed from the engine core and are supplemented by the bundled Krkr2Compat or individual plugins (details in Removed Features).

KAGParser class → link and use the KAGParser.dll plugin
Menu class → menu.dll
Console class / debug console window (Debug.console) → Krkr2Compat
Font.doUserSelect (font selection dialog) / System.inputString (single-line input) → Krkr2Compat
Layer.hint, and obsolete methods such as affineBlend / affinePile / blendRect / pileRect / stretchBlend / stretchPile → can be reimplemented in TJS with operateAffine / operateRect / operateStretch

Newly added features¶

These center on cross-platform support (SDL3) and extensions to GPU rendering, development support, and sound features.

Added feature	Summary
SDL3 cross-platform build	Generic build supporting Windows / Linux / macOS / Android / Emscripten (web), plus the LIB build in static-library form
OpenGL ES rendering path	The lazily initialized GPU draw device OGLDrawDevice and GL classes such as Canvas / Texture / ShaderProgram / Offscreen / VertexBuffer / Matrix32 / Matrix44
GLCompositor	A class that performs offscreen OpenGL ES compositing behind the scenes even under non-GL draw devices and writes the result back to a Layer (GLCompositor)
Canvas transition drawing	GPU-based screen transition drawing with `Canvas.drawTransition`
Elements-based general-purpose dialogs	Cross-platform UI defined in JSON / Dictionary (the ElementsDialog class; details in Dialog)
REPL (interactive TJS shell)	Script evaluation and verification via `-repl` / `-replfile` (REPL)
WebServer	Built-in HTTP + SSE server (`-replweb`). Endpoints can be registered from TJS (WebServer)
Agent	Automation API for input injection, screen capture and dialog operation (Agent)
FreeType color emoji fonts	Rasterization of CBDT/COLR color emoji (`Font.emojiMode`)
Font metadata and lazy loading	Declared in `fonts.json`; the actual file is loaded on first use (reduces executable size)
Gamepad multi-pad redesign	Multiple pad support (logical pad 0 = the most recently used pad), shared `tTVPPadManager`
3D sound positioning (spatializer)	miniaudio-based position/distance/Doppler/directivity (the `use3D` family of WaveSoundBuffer, SoundListener)
Lip-sync / sound analysis API	`getSoundLevel` / `getSoundSpectrum` / `getVowel` / `getVisBuffer`
3D / effect plugins	threepp (a three.js port) / Effekseer / Live2D / GLES helpers
Media Foundation HW movies	Hardware decoding via `IMFMediaEngine` (default for mp4/wmv; disable with `-mediaengine=no`)
On-screen debug displays	Gamepad state (PadOverlay), memory monitoring, render thread utilization (DrawStats)
DPI awareness / borderless fullscreen / long paths	PerMonitorV2 DPI awareness (when moving to a monitor with a different scale factor, the pixel size of the drawing area is kept and only the frame is redrawn), `\\?\` extended path support
Controlling the game screen's display area (viewport)	Places the inner game screen inside the outer window with fit / zoom / align / offset and fills the margin with a background color or wallpaper (Viewport)
Selecting the startup display	`-display` picks the monitor shown first in a multi-display environment by number / name (Command-Line Options)
Selecting the DrawDevice at startup	`-drawdevice` selects the draw device at startup (the SDL3 default is the OpenGL ES-based SDLOGLDrawDevice). `-forceegl` can also force EGL for the GLES context
Localized messages / settings UI	Engine messages and option descriptions (`-userconf`) follow the OS language (ja / en / chs / cht). Specify explicitly with `-language` (Command-Line Options)