The OpenGL renderer draws on the context the frontend hands over
through libretro GL, and the core makes no context of its own: the
platform context code goes, EGL, EGLX11, EGL for Android, WGL, AGL,
BGL and the GLX window, with the shared contexts made for the shader
compiler's threads, and GLContext::Create makes the libretro context
alone. Programs are compiled on the frontend's context, so the OpenGL
backend reports no background compiling and its shader compiler runs
no threads; the shared-context compiler, its glFinish and VAO rebinds
and the driver bug that switched it off go with it. Android no longer
links libEGL.
The vertex, pixel and compute stages go from the generators' GLSL to HLSL
through rslc; the geometry stage is HLSL already. A stage rslc refuses is
logged and written to the dump directory. Windows no longer builds
SPIRV-Cross; Metal still uses it.
The core only ever outputs through libretro, so drop the ALSA, cubeb,
null, OpenAL, OpenSL ES, PulseAudio and WASAPI streams, the backend
selection, and the vendored cubeb and OpenAL. SoundStream is now one
non-virtual class, implemented by the libretro output in
DolphinLibretro/Audio.cpp.
Also drop the settings only the backends read (backend, volume, mute,
mute on disabled speed limit, latency, WASAPI device) and the volume
and mute helpers. The mute-on-fast-forward toggle never had an effect,
as the libretro stream ignored volume changes.
The GameCube microphone, Wii Speak and Logitech mic keep their libretro
microphone path; the unbuilt cubeb capture path and its Windows COM
worker thread go.
Dolby Pro Logic II decoding (SurroundDecoder, FreeSurround) stays.
The static Makefile is the only build. GitLab CI and the GitHub workflows
build with it, with the same lanes and toolchains; the MSVC workflow and
the CMake-only macOS universal-binary script go, as nothing builds them.
The Readme describes the Makefile build.
A bare make picks the Windows build from OS=Windows_NT, which every MSYS2
environment sets whatever uname -s reports, or from a MinGW-w64 CC. The
Windows build defaults to gcc/g++ instead of make's built-in cc.
Builds parallel_gamecubewii_libretro for every lane .gitlab-ci.yml covers:
unix (Linux x86_64/aarch64), webos, win64 (MinGW-w64), osx (x86_64/arm64,
CROSS_COMPILE), ios-arm64, tvos-arm64, android-arm64 and android-x86_64.
The source lists and per-library flags follow what the CMake LIBRETRO=ON
build links into the core, without the units only the standalone frontends
use. The per-platform configure results for curl, libusb, libiconv and mGBA
are checked in under Externals/<library>/makefile; the remaining generated
files are produced by the Makefile under obj/gen.
The Android input backend's JNI entry points belong to the Android app and
are left out of the core, which links with --no-undefined everywhere.
The Windows code builds against MinGW-w64 headers older than 12.0 as well:
D3D12 includes d3d12sdklayers.h explicitly, and the constants, declarations
and const-correct pointer types those headers lack for D3D12, device
notifications, the Wii Remote Bluetooth path, the IOS IP stack and thread
naming are provided locally.
LibretroAdmin