The libretro core is the frontend, and the headless tools are the test and
debugging hosts. The Windows, UWP, Android, iOS, macOS and SDL apps, the UI
framework and imgui go, along with what only they used: the Win32 debugger
hooks (g_frameMutex, the shutdown lock), JNI thread attachment, the Android
text drawer, RAIntegration, Discord, recent files, game installs, tilt input,
the audio resamplers, the control mapper, memstick moving and the remote ISO
and upload server modes. The web server keeps the debugger. The MSVC, Gradle
and ndk-build projects go too.
Socket waits now block in select() on the socket plus a wake or cancel
socket (Common/Net/Cancel), so a stop or cancel ends them at once.
- HTTP: cancel flags become net::CancelToken; Connect waits once on all
addresses, receives wait instead of spinning, no DNS retry sleep.
- Adhoc: the friend finder and adhoc server block on their sockets with
a wake socket and a deadline; matching runs on a CoreTiming tick
instead of two threads (savestate section bumped).
- sceNetInet select/poll check without blocking and park the HLE thread,
re-checked from a CoreTiming event until ready or the emulated
timeout.
- Vendor the aemu_postoffice client (was a submodule) with no sleeps:
waits on the socket, close via shutdown and an eventcount, cancelable
connects, and lock-free session slot claims.
- PortManager waits without a timeout; PSP_InitWait replaces the
headless boot poll.
- TimeUtil: sleep_us/sleep_ms only outside the core; sleep_precise,
sleep_random, yield and the Windows timer period are gone.
- Unit test for the socket waits.
Deflate, zlib and gzip streams go through rinflate and rdeflate, zstd
through rzstd, CHD images through rchd, zip archives through
rzip_archive and PNG through rpng. The bundled libraries, their build
glue and the system-library options are gone; adler32 and uncompress
keep zlib's ABI for the prebuilt FFmpeg archives that still call them.
libretro-common is one CMake library that the core, the headless tool
and the unit tests all link.
The reads take shorter paths on the way. CHD decodes straight from the
loader's reads and a range of blocks at a time, and a file read at any
alignment decodes into place; CSO keeps one inflate stream instead of
one per block; a plain ISO serves a file read with one read of its exact
bytes; a stored zip member is read in place and a deflated one through
restart points rather than a copy of the whole image in memory; zip
members decode into the caller's buffer; sequential reads through the
frontend's VFS skip the seek, which also keeps its buffering.
libretro/test reads one image as ISO, CSO, CHD and zip through the block
devices, boots each, and checks the codecs against Python-made vectors;
a CI job runs it.
The libretro-common submodule pinned the standalone repository at
76a3d54. It is replaced by an in-tree copy of RetroArch master
(b655a20) holding only what the core uses: the VFS, file, string,
encoding, compat and time sources it already built, the headers they and
the core include, the threading set - rthreads, retro_atomic, retro_spsc
and retro_waitable_spsc, mpsc_stack, retro_triple_buffer,
retro_eventcount, retro_asym_eventcount, retro_procbarrier and tpool,
with features_cpu and rstrtod, which they need - and the codecs that
replace the bundled zlib, zstd, libchdr, libzip and libpng: rinflate and
rdeflate, rzstd, rchd with its LZMA and FLAC decoders, rzip_archive,
rpng and crc32.
stdstring.c, which nothing calls, is no longer built. The threading sources are always built, by both the static Makefile and
CMake; the VFS set stays behind HAVE_LIBRETRO_VFS as before. The codecs
are built by the change that switches the core over to them.
naett has been a submodule pinned at v0.3.3; upstream has had no commits since
April 2024, and we want to carry local changes (next up: a libcurl-backed HTTPS
path for Linux). It's ~1500 lines of MIT C, smaller than several things we
already vendor, so bring it in-tree and drop the submodule.
Also drop the generated single-file amalgam (naett.c) that every build system
was compiling, and build src/*.c directly instead - otherwise the file you edit
isn't the file that gets compiled, which is a trap for anyone patching this.
example/ and testrig/ (a whole Android Studio project) are gone with it.
Two changes were needed to make the sources build on their own, both noted in
ext/naett/README-ppsspp.md along with the upstream commit:
- naett_internal.h now includes naett.h, which the amalgam pulled in first.
- naett_linux.c now includes stdio.h/stdlib.h. It calls exit/calloc/realloc/
free/fprintf without ever including either, and only got away with it because
naett_core.c sat above it in the concatenation.
No functional change - Linux still has HTTPS_NOT_AVAILABLE set, so it doesn't
build naett at all yet.
Rename naett to naett-lib
The test set lives in the 'frametests' git submodule (hrydgard/ppsspp-frametest-ci).
The test job previously only inited pspautotests, so the submodule was never
synced on CI and the (now removed) hashFiles gates skipped the frametests steps.
Use an HTTPS submodule URL so CI can fetch it without SSH keys.
Eventually, this will make it possible to use post-processing with
Vulkan and D3D11. Probably not DX9, though maybe.
Not adding to Android build, there's some strangeness with STL.
libretroadmin