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Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 subhobhai943andClaude Opus 4.8
|
fe33ddc79b |
feat(lib,gui): the browser shows images -- a PNG/BMP decoder, DEFLATE and all
The Web app could only render text. Now it decodes and displays images, so a
picture on the web actually shows up.
- lib/inflate.c DEFLATE / zlib decompressor (RFC 1950/1951): the algorithm
every PNG needs. Canonical Huffman, all three block types,
decodes into a caller buffer -- no allocation, integer only.
- lib/image.c PNG decoder (8-bit RGB/RGBA/grayscale/gray+alpha, and
1/2/4/8-bit grayscale & palette, non-interlaced; tRNS
transparency) plus BMP (24/32-bit). Parses chunks,
inflates IDAT, undoes the five scanline filters, and expands
to a flat 0xAARRGGBB buffer ready for gui_gfx_blit. A pixel
cap guards the heap.
- Web app: if a response body sniffs as an image it is decoded once and drawn
instead of text -- scaled to fit the panel width, vertically scrollable,
alpha-composited over the background. The per-fetch cap grew to 128 KB so
real images and longer pages fit.
Both decoders were verified on the host against generated references before
going in the kernel: inflate round-trips six zlib/raw streams (empty, back-
references, dynamic Huffman, stored blocks, 20 KB random, mixed); the image
decoder reproduces PIL-made PNGs of every supported colour type -- grayscale,
RGB, RGBA, 4-bit palette, gray+alpha -- and a BMP, with exact pixel matches.
In QEMU the Web app fetched a 360x240 PNG over HTTP and rendered it perfectly:
gradient, an antialiased red circle, a green box, a yellow diagonal, shown as
"image 360x240". Builds clean on x86_64, aarch64 and armv8i.
Still image-by-URL, not inline <img> within a page (that needs sub-resource
fetching and layout); and no JPEG/GIF (different codecs). PNG and BMP cover a
large share of the web's images.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
|
8a55ac345b |
feat(crypto,net): TLS 1.3 client -- SUB-OS can now browse HTTPS sites
The browser could only reach plain HTTP, which is almost none of the real
web. This adds a from-scratch TLS 1.3 client so it can fetch https:// pages,
including real sites on the open internet.
Crypto primitives (all integer-only, freestanding, verified on the host
against their RFC test vectors before going in the kernel):
- crypto/x25519.c X25519 ECDH (RFC 7748), compact TweetNaCl field
arithmetic.
- crypto/chacha20poly1305.c ChaCha20 + Poly1305 AEAD (RFC 8439).
- crypto/hkdf.c HMAC-SHA256, HKDF (RFC 2104/5869) and the TLS 1.3
HKDF-Expand-Label / Derive-Secret helpers, on top
of the existing SHA-256.
A host harness checked every one against its published vectors (X25519 s6.1,
ChaCha20 s2.4.2, AEAD s2.8.2 incl. tamper rejection, HKDF TC1) -- all pass.
TLS 1.3 client (net/tls.c), single suite TLS_CHACHA20_POLY1305_SHA256 over
X25519: ClientHello (with SNI and ALPN http/1.1) -> ServerHello -> the RFC 8446
key schedule over a running transcript hash -> decrypt the server flight ->
send Finished -> switch to application keys. A small record layer handles the
plaintext-then-AEAD split and the middlebox ChangeCipherSpec. All large buffers
live in the heap-allocated connection, never on the 16 KB worker stack.
http_client routes https:// through TLS instead of raw TCP, so the async
worker, webget, netcheck and the GUI Web app all get HTTPS for free; the
redirect follower now follows http->https upgrades. The Web app's default page
is now https://example.com/.
Verified end to end on x86_64: the handshake interoperates with openssl
s_server (TLS 1.3, ChaCha20) -- GET returned HTTP 200 with the decrypted body
-- and, over QEMU's NAT, `webget https://example.com/` and the GUI Web app both
loaded the real Example Domain page served by Cloudflare over TLS 1.3 (HTTP
200, 828 bytes). The server only accepts our Finished if the transcript hash
and key schedule match byte-for-byte, so a 200 is proof the whole stack is
correct. Builds clean on x86_64, aarch64 and armv8i.
SECURITY CAVEAT, stated plainly: the server certificate is NOT verified. The
channel is encrypted and interoperates, but a man-in-the-middle could
impersonate the peer. Real certificate-chain validation (X.509 parsing,
signature checks, a CA bundle, hostname matching) is a large separate piece and
is not built here. This is fine for a hobby OS over a trusted local NAT; it is
not fit to protect real secrets. Also: TLS 1.3 only, one cipher suite, and
still no JavaScript/media -- so JS-heavy or app-style sites (YouTube) remain
out of reach; this makes static/text HTTPS pages readable.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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9f90361265 |
feat(gui): make the Web app a real browser -- clickable links, history, relative URLs
The Web app fetched and rendered pages but could not browse between them.
Now it does. In Reader view, anchors are parsed as the markup is stripped and
recorded as links spanning the text they enclose; those spans render in the
accent colour with an underline, and a click on one follows it.
- Link capture: html_to_text now tracks <a href> open/close, storing each
link's [start,end) span in the processed text plus its href in a per-page
string pool. Rendering overlays link spans in accent + underline; a body
click maps pixel -> line -> text offset -> containing link.
- Relative resolution: a link's href is resolved against the page's own
address (captured from the fetch's final host/port/path). Root-relative
(/path), document-relative (page.html) and absolute URLs all work; the
default port is omitted from the rebuilt URL. mailto:/javascript:/#frag
are treated as non-navigable.
- History: a back stack (depth 16) records each address before navigating; a
Back button, lit only when there is somewhere to return to, pops it.
- https:// links resolve through and are refused by the fetch layer with the
existing clear message rather than being silently dropped.
Verified on x86_64 with real synthetic clicks against a small multi-page HTTP
site: the home page rendered its two links highlighted; clicking "Go to Page
Two" navigated (URL bar updated to the resolved http://host/page2.html, host
logged GET /page2.html) and Page Two rendered with its own links; the Back
button returned to the home page (host logged GET /). Builds clean on x86_64,
aarch64 and armv8i.
Known limit: no TLS, so https:// pages are reported not shown -- plain HTTP
browsing only.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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f6e4511047 |
feat(net,gui): real internet access -- redirects, HTTPS guard, netcheck, and a live ONLINE indicator
The stack could already reach the real internet once the UDP-checksum and
scheduler fixes landed; this makes it work on real-world URLs and gives the
desktop a first-class "is the internet up?" answer.
HTTP client
- Follows 3xx redirects (Location header, absolute or relative) up to five
hops, so a bare host that 301s to a path or a canonical host resolves to
actual content. Verified: `webget google.com/` follows the 301 to
www.google.com and returns its HTTP 200 homepage.
- Refuses https:// targets -- at the initial URL and on redirect -- with a
clear message instead of speaking plaintext to port 443 and timing out.
- Split the URL parser out so both the initial request and redirect targets
go through the same path; added a case-insensitive header finder.
netcheck (CLI)
One command that walks the whole chain -- link, address, gateway ping, DNS,
and a real HTTP fetch -- and reports each PASS/FAIL, ending in ONLINE or
DEGRADED. The one-shot answer to "is the internet working?".
Network Monitor (GUI)
A live Internet: ONLINE/OFFLINE badge with the resolved IP, HTTP status and
latency. It auto-probes once on open and re-checks on the Check button, all
through the async HTTP worker so the window never blocks.
Verified against the real internet through QEMU's NAT: DNS resolved
example.com to a live Cloudflare address; `netcheck` passed all five layers
(Internet: ONLINE); the GUI badge showed "ONLINE 104.20.23.154 HTTP 200 240
ms"; redirect following and the HTTPS refusal both behaved. Builds clean on
x86_64, aarch64 and armv8i.
Known limit: no TLS, so HTTPS URLs are reported rather than fetched -- plain
HTTP only.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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dd4922767a |
feat(net,gui,sched): async HTTP client + Web browser app, and the scheduler fix that makes background work possible
The visible goal was a Web app: type a URL, see the page, fetched over the TCP stack SUB-OS built. Getting there surfaced -- and forced fixes to -- two deeper problems. Async HTTP client (net/http_client.c) tcp_connect/recv all block, so fetching from the GUI would freeze the compositor. Fetches now run on one long-lived kernel worker thread that services a single-slot mailbox; the requester posts a job and polls its state. Ownership follows the state, and the two hand-off points (worker completion, requester release) run under interrupts-off, so a window can close mid-fetch with neither leak nor use-after-free. do_fetch returns its terminal state rather than publishing it, closing a window where the requester could free the job before finalize read it. Cooperative scheduling for the idle thread (the core fix) The login prompt, the shell and the GUI compositor all run on the pid-0 idle thread, which the scheduler by design never preempts (sched_tick skips pid 0) and never requeues on a yield (weave_on clear). So it could neither be preempted to let the worker run, nor cleanly yield -- the worker was simply starved, and an early attempt to yield from it froze the shell outright. The idle thread now joins the weave rotation once hardware interrupts are live, and the network wait loops (tcp, dns, ping, the worker's idle) yield through a new net_wait() instead of halting the CPU. The compositor spends its frame-budget slack yielding too. Result: a background fetch progresses while the desktop holds 54 FPS. Web app (gui/gui_app_web.c) A text browser: URL bar, Go, and a Raw/Reader toggle. Raw shows the response verbatim; Reader strips markup (dropping <script>/<style> bodies), decodes the common entities, and word-wraps the body. The line index is cached against content/view/width so scrolling and idle repaints are free. It only ever polls the worker, so it never stalls. TCP throughput (the limit flagged last time) The 32-slot table with a 2 s TIME_WAIT linger capped sustained serving at ~16 req/s. The table is now 64 slots, a connection this end closed after serving a request lingers 250 ms rather than 2 s, and expired TIME_WAIT entries are reaped from the count path so a quiet table still drains. netstat/netmon gained served-since-boot and peak-slots counters. Also: a `webget` CLI (the async client from a shell), listen/accept introspection already present, and a globe icon for the app. Verified on x86_64: `webget` fetched an 812-byte page (HTTP 200, 10 ms) on the worker thread; the GUI Web app rendered the same page in Reader mode while the desktop held 54 FPS; an 80-request burst through the 64-slot table returned 80/80 (was 39/40 before) and netstat reported "80 served, peak 33 of 64 slots" -- a peak that would have overflowed the old table. Builds clean on x86_64, aarch64 and armv8i. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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eb92502deb |
feat(net,gui): TCP listen/accept, and a Network Monitor to watch it
Kernel: the passive-open half of TCP. tcp_listen claims a port, inbound
SYNs to it are completed by the receive path, and the finished
connections queue in a backlog until tcp_accept collects them. Accepted
connections run the same stream state machine as active opens, so
tcp_send/tcp_recv/tcp_close work on them unchanged. sys_listen and
sys_accept expose this through the BSD socket API, with sys_accept
returning a fresh descriptor and leaving the listener available for the
next caller. The built-in sshd and httpd predate this and are still
answered inline from the receive path; the role they use is now named
TCP_ROLE_SERVICE to keep that distinction explicit.
GUI: a Network Monitor app. Interface configuration and link state, a
rolling dual-line chart of receive and transmit rates sampled from the
NIC counters on a fixed 2 Hz cadence (so it reads in packets per half
second no matter how often the compositor repaints), byte and packet
totals, and the TCP engine's connection table with each connection's real
state and direction, scrollable when it outgrows the window.
Two bugs the monitor made visible, both fixed:
- Served HTTP connections were never closed. The response advertises
"Connection: close" but the engine left the connection ESTABLISHED
forever, so the 32-entry table filled up and the server stopped
answering after 32 requests. The service path now sends its FIN after
the response and lingers in TIME_WAIT until the reaper takes it. 40
sequential requests through a 32-slot table now yield 39 successes
where the 33rd onwards previously failed permanently.
- tcp_close gave up in FIN_WAIT2 after 500 ms and freed the slot, so a
peer whose own FIN arrived later got an RST instead of an ACK. It now
falls into TIME_WAIT instead, and TIME_WAIT acknowledges a first FIN
rather than only a retransmitted one. Expired TIME_WAIT entries are
also reaped from tcp_get_connections_count, so a table that sees no
further connections still empties out.
Verified on x86_64 against real peers, checked packet by packet in a
capture: a host client connected to `tcpserve 9000` in the guest and got
its reply -- SYN/SYN-ACK/ACK with a random ISN, 30-byte request, 43-byte
reply, and a clean four-way close whose final ACK is correct even when
the peer's FIN arrives 1.2 s late. Zero bad checksums throughout. The
monitor was screenshotted under live load showing connections moving
through TIME_WAIT and being reclaimed. Builds clean on x86_64, aarch64
and armv8i.
Known limit: 32 connection slots with a 2 s TIME_WAIT linger means
sustained rates much above ~16 requests/second can transiently exhaust
the table; it recovers on its own as entries expire.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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c9dfa6a1aa |
feat(gui): Sorry -- an apology app with a live parametric heart
A new desktop app whose whole point is to say sorry, and to look like
saying it took effort. Nothing in it is a static bitmap.
The heart is the classic parametric heart curve, x = 16sin^3(t) and
y = 13cos(t) - 5cos(2t) - 2cos(3t) - cos(4t), precomputed as a 96-point
integer polygon normalised to a half-width of 1000 and scanline-filled at
whatever size the beat currently has it at. Even-odd crossing counting is
what keeps the notch between the lobes open. The beat is a two-thump
cardiac envelope -- a strong systolic beat and a softer echo -- and the
fill carries a vertical gradient, a soft specular highlight on the upper
lobe, and a six-layer glow. The kernel is built -mno-sse with no floating
point, so every curve, gradient, easing and physics step is integer-only
and needs no trigonometry at runtime.
Around it: three apology letters that type themselves out a character at
a time, and a slow drift of small hearts using the same fill routine.
Answering "I forgive you" brightens the heart and bursts the drift
outward; answering "Not yet" dims it, slows the beat, and starts an
honest count of how long it has been waiting. Neither answer is an exit.
Supporting changes, all of them general rather than app-specific:
- gui_desktop_request_animation_frame(), so an app can opt into
full-rate recompositing instead of the ~10 Hz live-content
heartbeat. It is renewed per paint, so it lapses by itself when the
app stops animating or its window closes.
- gui_button_styled() and gui_hitzone() in SUB-WT, letting an app with
its own palette keep the toolkit's click handling. gui_button_colored
is now a thin wrapper over the former.
- A heart glyph in the icon set.
The glow layers skip whatever the heart body is about to cover, which
cuts their blended-pixel cost by roughly 3.5x and pays for the extra
layers that turn contour rings into a smooth halo.
Verified in QEMU on x86_64: all three states driven by real clicks --
hover, forgiveness (brighter heart, burst, live typewriter) and waiting
(dimmed heart, slower beat, running counter). Builds clean on x86_64,
aarch64 and armv8i.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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5bd18c4733 |
feat(cpp,gui): C++ Analytics Engine + live GUI Analytics app
Kernel (C++17 freestanding):
- New Analytics Engine (kernel/cpp/cpp_analytics.cpp): templated rolling
time-series (TimeSeries<N>) sampling four live channels -- CPU load %,
memory %, kernel-heap %, network pkt/interval -- with windowed statistics
(min/max/mean/stddev) computed in pure integer math (kernel is -mno-sse, so
no FP; stddev uses a Newton integer isqrt). Demonstrates virtual dispatch
via an Observer pattern (IAnalyticsObserver + a ThresholdAlarmObserver that
counts breaches) and RAII singletons.
- Extended cpp_containers.hpp with Optional<T>, Pair<A,B>, and the kmin/kmax/
kclamp/kswap algorithms.
- Full C fallback (cpp_fallback.c) so the engine is functionally identical on
aarch64/armv8i, which don't build the .cpp path.
- Wired cpp_analytics_init() into boot [8/14]; seeds a few samples so graphs
are populated immediately.
GUI:
- New "Analytics" desktop app (gui/gui_apps.c): a 2x2 grid of live line-charts
backed by the C++ engine, each with gridlines, a soft baseline fill, and
min/avg/max(/stddev) overlays; click a panel to focus one channel full-size,
click again to return. Throttled to ~2 Hz sampling off the compositor's
repaint cadence. Registered on the desktop and in the start menu.
Userland: new `cppstat [samples]` applet dumps the engine's per-channel stats
and Observer breach counters.
Verified in QEMU (x86_64): boots clean on x86_64/aarch64/armv8i; `cppstat`
prints live stats (CPU 6%, Mem 7%, Heap 22%, computed min/avg/max/stddev,
Observer breaches); the GUI Analytics window renders all four graphs with the
Kernel Heap curve visibly climbing 22->55% as windows open, compositor steady
at ~53 FPS.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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2c2e2d536e |
perf(gui): scene-dirty compositor + cursor overlay + 60 FPS pacer + animations
Rework the compositor so it stops repainting the whole screen every frame, tripling the frame rate (17 -> 54 FPS at HD) and adding smooth animation. - Scene-dirty skipping (gui/gui_desktop.c): the full scene is recomposited only when something other than the bare pointer changed -- input, an open animation, or a ~10 Hz heartbeat for live content (clock, graphs). Idle and pointer-only frames skip the recomposite entirely. - Cursor save-under (gui/gui_cursor.c): the pointer is an overlay that stashes and restores the pixels beneath it, so moving the mouse never forces a full repaint -- pointer motion runs at the frame cap. - 60 FPS frame pacer: each iteration is timed against the monotonic clock and padded to a 16.666 ms budget with the new ktime_delay_us() (HPET-precise busy-wait), giving consistent pacing instead of a free-running spin. - Window open animation (gui/gui_wm.c): new windows grow from 60% to full size with a cubic ease-out over ~160 ms; gui_wm_update() drives it and reports while any window is still animating so the compositor keeps redrawing. - Default display mode set to 1280x720 (HD) -- the sweet spot where the software compositor sustains a near-60 FPS cursor with headroom for effects. Kernel: kernel/time/ktime.c gains ktime_delay_us(), a precise HPET-based delay (bounded PIT fallback) used by the pacer. Verified live (screenshotted): boots to 1280x720, logs in, tray reads ~54 FPS (green) while the pointer moves, no cursor ghosting, windows render cleanly. Clean build on x86_64/aarch64/armv8i; 0 panics / 0 OOM. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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4ecf119377 |
feat(gui,kernel): 1080p HD desktop, polished chrome, ktime clock + live FPS
GUI polish / HD: - Default display mode raised to 1920x1080 (video=1920x1080); make run/vnc use vgamem_mb=64 and -m 512M. The growable heap absorbs the larger backbuffer, shadow and wallpaper (observed: one 16 MB growth to a 48 MB heap). - Wallpaper: three-stop vertical gradient, a soft concentric-frame edge vignette for depth, a finer faint grid, and a centred brand mark. - Window chrome: brighter/saturated titlebar gradient when focused, an accent underline on the active window, and larger/softer drop shadows. - Default session windows are placed and sized for the HD work area. - Live FPS pill in the taskbar tray (green/amber/red by rate); tray widened so FPS + CPU trace + memory badge + clock no longer overlap. Kernel: - kernel/time/ktime.c + include/kernel/ktime.h (new): a unified monotonic high-resolution clock that prefers the HPET (nanosecond) and falls back to the 100 Hz PIT tick. Wired ktime_init() into boot; drives the compositor's FPS sampling. New `ktime` LazyBox applet reports the source and uptime. Verified live (screenshotted): boots to 1920x1080, KTIME reports "source: HPET, nanosecond resolution", the polished desktop renders with the active-window accent and vignette, and the tray shows a live FPS reading. Clean build on x86_64/aarch64/armv8i; 0 panics / 0 OOM. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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ef6714a004 |
fix(gui): make the Settings app actually apply changes
The Settings window rendered fine but its controls only mutated the app's local
settings_data_t -- nothing was ever wired to the running system, so toggling
options did nothing ("not working").
- Appearance: "Show wallpaper grid overlay" now calls gui_desktop_set_grid()
live; the desktop grid shows/hides immediately.
- Input: "Show seconds in taskbar clock" now calls gui_desktop_set_clock_seconds();
the taskbar clock switches between HH:MM and HH:MM:SS.
- Power: the CPUFreq governor radios now call cpufreq_set_governor() (mapping the
UI order to the enum), and Apply/Defaults push all preferences to the system.
- The app seeds its controls from live state on open (grid/clock/governor), so it
reflects reality instead of hard-coded defaults.
Also add public gui_desktop_set_grid/get_grid and set/get_clock_seconds, and
give Settings a dedicated event handler that frees its state on close (the
shared app_forward_event leaked it).
Verified: Settings renders and its controls are wired to real effects; clean
build on x86_64/aarch64/armv8i; boots to the login gate with 0 panics / 0 OOM.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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ea937a699c |
feat(kernel,gui): NT I/O Manager (IRP-based drivers) + Registry Editor
Kernel (NT I/O subsystem): - kernel/nt/io.c + include/kernel/nt/io.h (new): DRIVER_OBJECTs with a MajorFunction dispatch table, DEVICE_OBJECTs that can be stacked (attached), and IRPs pushed down the stack via io_call_driver / completed with io_complete_request. Ships three demo drivers: \Driver\Null (write sink, EOF reads), \Driver\Zero (zero-filled reads), and \Driver\Monitor -- a filter attached above \Device\Null that counts and forwards each IRP down the stack. Wired into the [12/14] boot step. - LazyBox `iodev` lists drivers/devices with the stack and IRP counters, then runs a live demo: a WRITE IRP through the filtered Null stack and a READ from the Zero device. GUI: - gui/gui_apps.c: "Registry Editor" -- navigate the NT \Registry hive tree, click subkeys to descend and ".." to go up, with a values pane showing each value's name/type/data. Registered in the app table (start menu). Verified live in the GUI terminal (screenshotted): 3 drivers / 3 devices, the NullMonitor->Null device stack, a 16-byte WRITE sunk through the filter (status 0x0), and an 8-byte zeroed READ from \Device\Zero. Clean build on x86_64/aarch64/armv8i; 0 panics / 0 OOM. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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526ad8c741 |
feat(kernel,gui): NT Configuration Registry + GUI Object Browser
Kernel (NT Configuration Manager): - kernel/nt/reg.c + include/kernel/nt/reg.h (new): a hive/key/value registry rooted at "\Registry", with typed values (REG_SZ/DWORD/QWORD/BINARY/MULTI_SZ, type codes matching Win32). reg_create_key/reg_open_key walk backslash paths; setters/getters, enumeration, and value->string rendering. reg_init() seeds \Registry\Machine (Hardware, System\CurrentControlSet\Control, Software\SUB-OS) and \Registry\User\.DEFAULT. Wired into the [12/14] boot step. - LazyBox `reg query|add|set|stats` explores and edits the registry. GUI: - gui/gui_apps.c: "Object Browser" -- a WinObj-style live tree view of the NT object namespace (\), flattening directories/events/semaphores/mutants with indentation, per-type colouring, ref/handle counts, live object/handle stats, and click-to-scroll. Registered in the app table (start menu). Verified live in the GUI terminal (screenshotted): registry reports 13 keys / 11 values; `reg query \Registry\Machine\Software\SUB-OS` lists Version, BuildArch (REG_SZ), GrowableHeap/ObjectManager (REG_DWORD) and InstallCookie (REG_QWORD) with correct types. Clean build on x86_64/aarch64/armv8i; 0 panics. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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c414c20b44 |
feat(rust,gui): RLE compression codec + Rust Lab desktop app
Rust kernel expansion: - rust/src/compress/mod.rs (new): memory-safe PackBits-style run-length encoding codec (rle_compress / rle_decompress) with C-ABI shims, registered in lib.rs. C fallbacks added to rust_fallback.c so aarch64/armv8i match. - include/kernel/rust.h: FFI declarations for the codec. - LazyBox: new `rle <text>` applet that compresses, decompresses, prints the ratio and verifies the round-trip is lossless. GUI expansion: - gui/gui_apps.c: "Rust Lab" app -- a live dashboard for the Rust subsystem. Shows CRC-32C/Adler-32 of a sample, measured ChaCha20/SHA3-256/AES-128 throughput as scaled bars plus a composite score (benchmark run once at launch and cached), and a live ChaCha20 CSPRNG byte stream refreshed periodically. Per-window state freed on close. - Registered "Rust Lab" (info icon) in the desktop app table and on the desktop; desktop icon indices updated for the new entry. Verified: clean build on x86_64/aarch64/armv8i; boots through the SUB login to the desktop with the new Rust Lab icon rendering (screenshotted); checksum self-test prints, 0 panics / 0 OOM. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 4.8
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e93b994469 |
feat(rust,gui): Rust checksum engine + Game of Life desktop app
Rust kernel expansion:
- rust/src/checksum/mod.rs (new): memory-safe CRC-32C (Castagnoli), Adler-32,
and FNV-1a-64 with thin C-ABI shims. Registered in lib.rs with a boot-time
self-test (crc32c("SUB-OS")=0x61e96ce9, verified against a reference impl).
- include/kernel/rust.h: FFI declarations; rust/rust_fallback.c: matching C
fallbacks so aarch64/armv8i (no native rustc target) get identical results.
- LazyBox: new `cksum <text>` applet printing all three via the Rust engine.
GUI expansion:
- gui/gui_apps.c: Conway's Game of Life -- an interactive B3/S23 cellular
automaton with Play/Pause/Step/Random/Clear toolbar, click-to-toggle cells,
a live generation/population readout, and a board that scales with the
window. The Random button seeds from the Rust ChaCha20 CSPRNG. Toolbar and
cell input are gated on the MOUSE_DOWN edge so they do not re-fire while held.
- Registered "Life" (flask icon) in the desktop app table and on the desktop.
Verified: clean build on x86_64/aarch64/armv8i; boots through the SUB login to
the desktop (screenshotted) with the checksum self-test and 0 panics/0 OOM.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
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subhobhai943andClaude Opus 4.8
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71ad6aca3d |
feat: Growable heap, GUI-by-default run, live sysmon, SUB/SUB default login
Kernel / memory: - mm/kmalloc.c: fix "Heap: Out of memory" under the GUI. The desktop allocates three full-screen 32-bit buffers (~11MB) which overflowed the fixed 16MB pool. The heap now starts at 32MB and grows on demand from the PMM (16MB regions), with region-safe coalescing (only merges physically adjacent blocks) so growth never corrupts across separate PMM allocations. Adds heap_get_grow_count(). Build / run: - Makefile: merge `run-gui` into `run` so `make run` boots into the graphical desktop; add `run-headless` (serial-only via QEMU_CMD), bump guest RAM to 256M, update .PHONY and help. Configure: - scripts/kconfig/menuconfig.py: gate the curses UI behind isatty() on stdin and stdout so non-interactive `make configure` stops emitting "nocbreak() returned ERR" and falls cleanly through to the non-interactive writer. GUI / userland: - gui/gui_apps.c: rebuild the System Monitor from hardcoded values into live telemetry -- real heap used/total/free with a colour-shifting bar, a scrolling heap-utilisation graph, the grow counter, and real PMM RAM figures. - lazybox `free`: report how many times the heap has grown. Auth: - Default login is now SUB / SUB (Kali-style username==password), seeded first as the primary uid-0 account and set as the logged-in user; root kept for compatibility. Hardcoded "root" defaults (whoami, su, passwd, ssh, sshd session) updated to SUB. Verified: clean build on x86_64/aarch64/armv8i; GUI boots with 0 OOM/0 panic; auth engine initialises cleanly; `make configure` fallback is clean. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX |
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subhobhai943andClaude Opus 5
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2136b6fb4c |
perf(gui): Present only changed pixels and cache the wallpaper
The compositor recomposited and re-uploaded the entire screen on every pass of its loop. At the 1280x720 the desktop actually boots into, gui_gfx_present() memcpy'd 3.6 MB into the framebuffer per frame, and the background underneath it was recomputed pixel by pixel every time. Present only the damage - Keep a RAM shadow of what the framebuffer currently holds and diff the back buffer against it, pushing just the changed span of each row. Reading the shadow costs a RAM access; the framebuffer write it avoids costs far more, and the framebuffer is never read back. - Each row is narrowed to its first and last differing pixel rather than tracked as a set of runs: one memcpy per row keeps the loop tight, and a row that changed in two distant places is rare enough that bridging the gap is cheaper than the bookkeeping. - gui_gfx_invalidate() forces a full push for when something outside the compositor owns the screen, which the desktop calls on entry and on exit around the framebuffer console. Cache the wallpaper - The vertical gradient, the blended grid and the branding text never change between frames, so they are painted once into a cached buffer and blitted back per frame. The cache is keyed on resolution and the grid setting, so toggling the grid from the context menu still repaints it. No drawing code changed: the damage is derived from the frame itself, so every widget, window and app keeps rendering exactly as before. Measured in QEMU at 1280x720: an idle desktop with two windows open went from 921600 pixels per frame to 3609, about 0.4% of a full blit. A screendump of the running desktop is unchanged -- wallpaper, grid, icons, both windows, taskbar and cursor all render identically. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_0161Jh7uCEMLYEMNPsjC1LKf |
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subhobhai943andClaude Opus 5
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65b7a709cc |
fix(gui): Adapt the desktop to the active resolution and restore the console on exit
The launcher table is authored against an 800x600 work area, so at 1280x720 every window kept its original size and left the desktop looking sparse, while still overlapping the icon column the way it did at the design resolution. Launch geometry now scales with the work area, capped so a window cannot swallow the screen, and offset clear of the icon strip so launcher labels stay readable. The wallpaper grid was a single fixed colour, which is darker than the top of the gradient but lighter than the bottom, so the grid faded out across the lower half of the screen. It is blended now and reads the whole way down. Leaving the desktop hands the screen to the framebuffer console, and entering it takes the screen back, so Esc drops to a working TTY inside the emulator and `gui` returns to the desktop. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01L5yKJT4Wo2cV3rfPrwY5MP |
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subhobhai943andClaude Opus 5
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eacba4f4d3 |
feat(gui): Make the desktop terminal run real commands
The GUI terminal recognised four hardcoded strings and answered everything else
with "Executed: '<cmd>'". It now dispatches to the same LazyBox applet table and
shell builtins the kernel TTY uses, so ls, free, uname, lspci, ktest, neofetch,
sort, cd and the rest all work, with cwd tracked across commands.
LazyBox reports through printk, so before running a command the terminal
installs a printk sink and streams the output into its own scrollback:
- ANSI SGR codes become per-line colours instead of being stripped.
- CP437 box-drawing and block characters fall back to ASCII, so the colour
swatch in neofetch renders as '#' rather than a row of '?'.
- 256 lines of scrollback, command history on Up/Down, PgUp/PgDn/Home/End.
- Applets that read the keyboard directly (nano, snake, sh, top) are refused
with a pointer to the TTY, since they would block the compositor.
The window's paint and event handlers moved out of gui_apps.c into
gui/gui_terminal.c, and gui_gfx.c now draws from the shared lib/font8x8.c table
rather than its own copy.
Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01L5yKJT4Wo2cV3rfPrwY5MP
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subhobhai943andClaude Opus 5
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1aee7c7a0d |
feat(gui): Add SUB-WT widget toolkit, icon set, modal dialogs, six apps and a reworked window manager
Turns the desktop from a fixed set of hand-drawn panels into a real
environment applications can be written against.
SUB-WT immediate-mode toolkit (gui/gui_widgets.c):
Buttons, labels, checkboxes, radios, sliders, list boxes, text fields, tab
bars, scrollbars, progress bars, sparklines and badges. An app feeds the WM
event into the toolkit and then calls widgets from its paint routine, so
each call both draws the control and reports what the user did with it --
no retained widget tree to keep in sync with window state.
Icons and dialogs:
gui_icons.c holds 14 16x16 palette-indexed glyphs stored as hex text, so the
art stays hand-editable and picks up theme changes for free; they scale by
integer factors and can be drawn as tint stencils. gui_dialog.c adds modal
info/warning/error/confirm dialogs that dim the desktop, take exclusive
input, word-wrap on spaces and report results through a callback.
Applications (gui/gui_apps_ext.c):
Settings (tabbed appearance/input/power), Task Manager (live process table
over task_find_by_pid with memory and heap gauges), Kernel Log viewer (reads
the dmesg ring, strips ANSI, colours by severity, scrolls), KTest Runner
(drives the in-kernel suites and reports 21/21 with timing), Clock & Calendar
(Zeller's congruence month grid) and a Text Editor.
Window manager (gui/gui_wm.c):
Minimize/maximize/restore buttons, a corner resize grip, edge snapping, tile
and cascade layouts, F5-F9 shortcuts, title truncation, and index-based
enumeration so the taskbar no longer assumes window ids stay dense.
Desktop shell (gui/gui_desktop.c):
Launcher icon grid, richer start menu, right-click context menu, taskbar
buttons that minimize and restore, and a live CPU trace in the tray.
Two interaction bugs fixed along the way:
- keyboard_get_key() blocks until a key arrives, so calling it every frame
froze the compositor; it is now gated on keyboard_has_key(), and stale
console input is drained before the first frame.
- When the desktop consumed a click, the WM's press-edge detector kept the
pre-press state and read the still-held button as a fresh press on the
next frame, stealing focus from whatever the click had just opened.
gui_wm_sync_button_state() keeps the two layers in step.
Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01L5yKJT4Wo2cV3rfPrwY5MP
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subhobhai943
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4568a9ab4e |
feat(gui): Upgrade to high-res 800x600, sharp 8x16 font, IRQ12 PS/2 mouse driver, and polished window manager
- Upgrade resolution to 800x600 @ 32bpp TrueColor with Bochs/QEMU VBE LFB - Implement full 8042 Aux PS/2 mouse controller driver on IRQ 12 (vector 44) with packet decode and bounds clamping - Add high-definition 8x16 font rasterizer with text drop shadows for sharp typography - Upgrade to smooth 16x24 anti-aliased cursor with dark slate outline and drop shadow - Increase titlebars to 24px and taskbar to 32px with modern desktop styling - Re-architect applications (SysMon, Terminal, Explorer, Calc, Paint, About) for spacious high-res display |
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subhobhai943
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56d8b3af1a |
feat(gui): Enable direct boot to GUI Desktop with emergency kernel TTY fallback
- Integrate Bochs/QEMU VBE physical LFB mapping directly to hardware video memory (0xFD000000) - Update kernel boot sequence to directly boot into GUI Desktop by default - Fall back to Emergency Kernel TTY Mode upon GUI exit (Esc key / Exit menu item) - Support 'nogui', 'text', 'emergency', and 'single' boot arguments to boot directly into text mode - Remove frame limits so GUI runs persistently |
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subhobhai943
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109472816c |
feat(gui): Implement complete Graphical Desktop Environment, SUB-WM, and apps
- Create separate feature branch 'feat/gui-desktop' - Implement double-buffered 2D graphics engine with alpha blending, gradients, rounded rects, and font rasterization in gui/gui_gfx.c and include/gui/gui_gfx.h - Implement alpha-blended mouse pointer overlay in gui/gui_cursor.c and include/gui/gui_cursor.h - Implement SUB-WM Window Manager with draggable titlebars, close/minimize buttons, drop shadows, and event routing in gui/gui_wm.c and include/gui/gui_wm.h - Implement Cyberpunk/Nord desktop environment with wallpaper, taskbar, start menu popup, and system tray in gui/gui_desktop.c and include/gui/gui_desktop.h - Implement built-in GUI apps: System Performance Monitor, GUI Terminal Emulator, File Explorer, Calculator, Paint Studio, and About dialog in gui/gui_apps.c and include/gui/gui_apps.h - Add 'startx', 'gui', and 'desktop' applets in LazyBox suite - Verified multi-architecture compilation across x86_64, AArch64, and ARMv8i |