Binaries and Modules

Binaries

The program links the first seven libraries through the rex::sdk CMake target. rex::Init loads the others by name at runtime, and loads rexxam, rexxbdm and rexkernel as modules. See Introduction for how they fit together.

Binary	Purpose
rexbase	Provides settings, logging, rex::Init, ImGui and the platform layer.
rexppc	Provides what recompiled code needs at runtime: the routing of the MMIO blocks, the registry of recompiled code, exception handling, and the guest stack and detour frames.
rexxenos	Holds the register, format and texture layout definitions of the Xenos GPU. It is a static library.
rexkernel	Provides TitleRuntime, the kernel exports, guest memory, and guest audio with XMA decoding.
rexxam	Implements the XAM exports.
rexxbdm	Implements the XBDM exports.
rexapp	Provides App, TitleApp, the command line and the entry macros.
rexfilesystem	Provides the filesystem. rex::Init loads it by name.
rexhid, rexapu, rexui, rexgpu	Provide the input, audio, UI and graphics systems. rex::Init loads each by name.
Driver modules	Provide the drivers. rex::Init loads the ones that the settings select.
rexglue	Creates projects and recompiles the XEX. It is a separate program and never loads into the program it builds.

Driver Modules

See Modules and Interfaces for how a system selects a driver.

Module	Driver	Purpose
rexui-sdl3	sdl3	Creates the window and the UI through SDL3.
rexhid-sdl3	sdl3	Reads input devices through SDL3, on every platform.
rexhid-xinput	xinput	Reads controllers through XInput. Windows only.
rexapu-sdl3	sdl3	Plays audio through SDL3.
rexgpu-xenos-d3d12	d3d12, family xenos	Renders graphics through Direct3D 12. Windows only.
rexgpu-xenos-vulkan	vulkan, family xenos	Renders graphics through Vulkan.
rexgpu-xenos-null	null, family xenos	Processes the GPU commands of the title and draws nothing, so a title runs without a host GPU.

Graphics Driver Values

See Graphics for the gpu.driver setting.

gpu.driver	Driver
any	Selects d3d12 on Windows and vulkan elsewhere. This is the default.
d3d12	Selects Direct3D 12, on Windows only.
vulkan	Selects Vulkan.
null	Selects the null Xenos driver.
none	Starts no driver. A TitleApp then fails in Init.

System Libraries

The eight libraries that an App loads, in load order. A module can only connect when the SDK or an earlier module serves every interface it requires. See Modules and Interfaces for the load order.

Library	Serves	Requires
rexfilesystem	IFileSystemFactory	ILogger
rexhid	IInputSystem	IDriverContext, IAppInfo, ISettingsRegistry, ILogger
rexapu	IAudioSystem	IDriverContext, IAppInfo, ISettingsRegistry, ILogger
rexui	IUISystem, IUIControl	IDriverContext, IAppInfo, ISettingsRegistry, ILogger
rexgpu	IGraphicsSystem, IGraphicsControl	IDriverContext, IAppInfo, ISettingsRegistry, ILogger
rexxam	IXAMTitleLifecycle, IXAMTitleServices, IXAMLanguage, IXAMExports	ISettingsRegistry, ILogger
rexxbdm	IXBDMExports	none
rexkernel	IKernelControl, IObjectTable, IThreadRegistry, IModuleRegistry, INotificationBroadcaster, IOverlappedDispatcher	ISettingsRegistry, ILogger, IFileSystemFactory, IUISystem

IUIControl, IGraphicsControl, IXAMExports, IXBDMExports and IKernelControl are private interfaces that only the app and the kernel can find. The app serves IAppInfo from a code module of its own.