The final cluster rect SDL_ttf reports stops at the last inked glyph, so a
caret at the end of a single-line field did not move when a trailing space
was typed. Use the laid-out width there; wrapped layouts keep the clamp
because their width is the widest line rather than the last one.
Default title is Roblox, details "Playing {place_name}", and state
"by {creator_name}". The creator comes from the games API response
already fetched for the place name. A text field that expands an
empty placeholder is left out, so the state never shows a bare "by".
The main thread polls nativeCallMessagesFromMainThread 146k times a second
with nothing to do. Between polls it now rests 100 us: nanosleep when the
governor is performance, TPAUSE (C0.2) when the CPU has WAITPKG, a spin
otherwise. Sleeping under a power-saving governor lets the render thread's
core clock down and drops frames, which is why TPAUSE is the default there.
MOCKTAIL_ENGINE_PUMP_REST=sleep|tpause|spin overrides. The profile trace
gains a slice for pumps that ran a message.
EmitPass reuses the decoder's persistent workers through RunOnDecodeWorkers
instead of creating and joining threads per batch. A failed trace write stops
the writer thread rather than leaving it ticking every 250 ms.
ETC2 uploads read bufferRowLength/bufferImageHeight instead of assuming
packed rows. MakeFileObject retains the path field. The main-thread pump
caches its JNI attach, but not the GetJNIEnv fallback, so a VM swap retries.
An idle launch-broker drain skips both locks.
Relative-mode motion carries zero absolute coordinates. The router used
to accumulate the deltas into its pointer position, so a long camera turn
parked the reported position at the viewport edge and Roblox drew its
cursor there when the capture ended. The position now stays where it was
captured while deltas pass through. Zero-coordinate wheel and button
events keep it too, and an unknown position defaults to the viewport
center.
sched_setaffinity binds one thread, so the fallback that undid a GameMode pin
only freed the thread that called Start(); the worker threads the fix exists to
protect stayed on the daemon's cores. Walk /proc/self/task instead, and treat a
readdir failure partway through as a failed restore rather than a finished one.
Also stop chrome_trace_writer emitting a valueless "ts" on to_chars failure, or
a bare inf/nan, either of which costs the whole trace instead of one field.
Release the GameMode request when the daemon narrows the CPU mask; the pin
concentrates Roblox's worker pool and is re-applied every few seconds, so
ending the request is the only thing that lifts it. `gamemode: on` keeps it.
Emit texture uploads on worker threads instead of serially inside
vkQueueSubmit, in two passes so mip 0 lands before the levels scaled from it.
Decode ETC2 through a persistent pool and lower the parallel floor to one
128x128 image, so small batches stop running single-threaded.
Document all three in docs/PERFORMANCE.md.
Staging buffers stay mapped and are reused instead of allocated per upload. Box resampling precomputes column spans and copies repeated rows, with identical output.
FindClass and GetObjectClass reuse one handle per class, detached threads release their local refs, and local ref deletes and singleton checks no longer scan. A full table logs the classes holding handles. Stale handles above slot 4096 no longer read as C strings.
Records presents, GPU waits, submits, ETC2 decode, and pipeline and shader creation for ui.perfetto.dev. Adds a benchmark guide and a trace summary script.
text.title sets the activity name, images.* set the large and small icons and hover text, and text.state may be empty to hide it. Text and image fields expand {place_name} and {place_icon}; fields that render empty are omitted. show_place_name: false now also hides the place thumbnail.
The service created its own credential directory with create_directories
and then refused it, because IsPrivateDirectory rejects a group-writable
path and mkdir masks its mode with the process umask. On a umask of 002
that failed every first run; a umask carrying owner bits left the
directory unwritable by its owner instead.
CreatePrivateDirectories creates each missing component and tightens it to
0700 through a descriptor opened O_DIRECTORY | O_NOFOLLOW. Components that
already exist keep their mode and are still judged by IsPrivateDirectory.
Relative-mode motion reports zero absolute coordinates, so the router
accumulates deltas. The accumulator was never clamped, only the copy sent
to the engine, so a long turn pushed it far outside the viewport and every
reversal was swallowed until the pointer travelled all the way back.
input.raw_mouse sends look deltas in host units instead of guest surface
units. Those differ only when the desktop display scale and the window's
pixel density disagree, as under fractional scaling. Default off.
Rename the desktop entry, metainfo, icons, Flatpak manifest, and SDL app
identity so Nightcap installs side by side with upstream. Build a signed
Flatpak on v* tags, publish the OSTree repo and landing page to GitHub
Pages, and attach the bundle to the release. Release creation tolerates
the AppImage and Flatpak workflows racing on the same tag.
Unset or non-numeric MOCKTAIL_SMALL_TEXTURE_UPSCALE now means 4, so the
upscale applies on every launch path. Drop the variable from the desktop
entry Exec line.
Show Nightcap as the app name in the desktop entry, window title,
dialogs, and metainfo. Binary, config paths, and desktop ID keep the
mocktail name. Publish Nightcap-x86_64.AppImage to GitHub Releases on
v* tags. README points at the fork's releases instead of upstream
packages.
Resolve src/update/host_abi_deriver.cc: keep upstream's FMOD vtable layout
versions and input-method derivation inside the optional output-device
bridge, so a mismatch omits the bridge instead of failing derivation.
Roblox requests FIFO with 3 swapchain images, which queues up to two frames
before display. The default vsync policy (auto, unmanaged frame cap) now
resolves to the vsync policy so the lowest-latency synchronized present mode
the host offers is used.
Level-0 uploads are hashed against the override store; MOCKTAIL_SMALL_TEXTURE_UPSCALE
creates colour images up to 64px N times larger, snaps block-rounded regions to the
host mip, fills every host mip from level 0 and turns image copies touching scaled
images into blits. MOCKTAIL_ADVERTISE_ETC2=0 hides the feature bit.
The client asks Java for a keystore attestation quote after joining. With no
handler the call returned null, the server never got an answer and dropped
the session with error 319. Reply with the no-keystore form [1, 0, message].
Compressed bytes are copied to heap scratch, decoded heap to heap across
up to 8 threads in block-row bands, and streamed into the staging buffer.
Decoding straight from uncached Vulkan memory caused 200-460 ms hitches.
The FPS trace now reports the longest frame gap per window.
Hosts without native ETC2 now report ETC2/EAC support. Uploads into emulated images are decoded to RGBA8/R16 staging buffers at submit. MOCKTAIL_DISABLE_ETC2_EMULATION=1 turns it off.
DeviceParams now carry host RAM instead of a low-RAM device profile, and screen, window and configuration sizes follow the host display and window with a 1920x1080 fallback.
* refactor(crypto): deprecate custom sha256 in favor of OpenSSL libcrypto
- Remove standalone src/foundation/sha256.cc, include/mocktail/sha256.h, and tests/sha256_test.cc
- Remove mocktail_crypto_foundation library and sha256_test targets from CMake
- Export clean FileDigest and HashText helpers via include/update/payload_integrity.h
- Deduplicate byte-to-hex formatting across host ABI loader and updater modules
- Support direct generation hash sizing to avoid repetitive string slicing
- Validate all EVP return codes across streaming downloads and asset tree hashing
* fix(compat): abort candidate canary registration when profile hashing fails
- Return Failure before profile validation and registration if ComputeSha256Hex fails
- Propagate canary attestation hashing failures in ValidateCanaryAttestation
- Add SetHostAbiProfileHashingFaultForTesting hook and regression test in host_abi_profile_test
---------
Co-authored-by: glook9001 <310372091+glook9001@users.noreply.github.com>
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