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2024-07-29Split crates/config/src/lib.rs (1441 lines) into engine/srdusr1-1434/+4
Pure reorganization, no behavior change - verified by diffing the function-name and struct/enum-name sets before/after (both identical) plus a full cargo test pass. lib.rs is now a thin shim (mod declarations + pub use) since a crate root can't itself become a directory; all the actual content moved into engine/, split along the Lua API's own srd.*/srd.window.*/srd.layout.*/srd.workspace.*/ srd.theme.* namespace groupings the file's own section comments already used: - mod.rs: SharedState, Engine, ConfigError, and Engine's core methods (new/get/set/dispatch/reload/...). - register.rs: register_srd_module, which wires every fn_* builder from every other file into the srd Lua table - the one place that genuinely needs to see all of them. - general.rs/window.rs/layout.rs/workspace.rs/theme.rs: the fn_* builder methods themselves, one file per srd.* sub-namespace. - support.rs: free functions shared across those (do_reload, parse_direction, flatten_table_into, validate, default_config) and the WindowAction enum. - tests.rs: the ~300-line test module, left unsplit for the same shared-helper reason manager/tests.rs and udev's tests were. ~40 fn_* methods and the support.rs free functions/enum went from private to pub(super): called across what are now sibling submodules, which Rust's privacy model doesn't let see each other's private items.
2024-07-09Rounded corners on udev/Pixman backend, opt-in and off by defaultsrdusr1-1/+9
CPU-side rounded corners for the software-only udev/Pixman renderer, which has no shader stage to hook the existing GLES version into. Reads a window's own committed wl_shm buffer, punches premultiplied- alpha holes into the four corner regions, and hands the masked copy to MemoryRenderBuffer - the same path already used for titlebar/ border/shadow bitmaps, so it composites through the ordinary unmasked path and the corners genuinely disappear rather than being painted over. Cached per window, invalidated by a per-commit content_epoch counter rather than rebuilt every frame, so an idle window costs nothing once masked. general.rounded_corners now defaults per backend instead of one global true: on for GLES/winit (a real GPU shader, no measurable cost), off for udev/Pixman (an untested-on-real-hardware CPU cost for constantly-repainting clients) - WindowManager.rounded_corners_enabled is Option<bool> so the backend can tell "unset" from "explicitly off".
2024-06-24Real rounded corners on client content (GLES/winit backend), via a custom shadersrdusr1-0/+1
decoration.rs's round_top_corners only ever clipped the compositor's own titlebar/border bitmap - its own doc comment already said why nothing more had been done: clipping arbitrary client content needs a real per-pixel mask, "a much bigger change than this cosmetic pass". That's this change, for the one backend that can do it cheaply: the udev backend's PixmanRenderer is software-only with no shader stage at all, but GlesRenderer (winit) has a real custom-shader path (`compile_custom_texture_shader`, `TextureShaderElement`) that a first look at smithay's higher-level convenience APIs missed entirely. crates/wayland/src/rounded_corners.rs: a GLSL fragment shader masking a window's texture against a rounded-rect signed-distance field while sampling it (the same technique cosmic-comp/niri use for GPU-side rounded corners) - built by hand from the surface's own committed texture/view/ damage state (`RendererSurfaceState`'s public accessors), since no smithay convenience wrapper builds a masked element at all (`CropRenderElement` only crops to a rectangle). A decorated window rounds only its bottom two corners - the top two are already rounded, on the titlebar's own CPU bitmap, by decoration.rs, at the exact same `CORNER_RADIUS` (now `pub(crate)`, shared between the two so the curve reads as one continuous radius, not two different ones meeting at a seam) - an undecorated/CSD window rounds all four, since its content is the window's whole visible extent. Falls back to plain unrounded content on any failure (shader didn't compile, no committed buffer yet, a single-pixel-buffer surface), same "always show something over a prettier maybe-nothing" reasoning cursor.rs's built-in-arrow fallback already uses. Deliberately scoped to a window's *main* surface only, not subsurfaces - documented as a real, if narrow, follow-up rather than attempted here. `TextureShaderElement` only implements `RenderElement<GlesRenderer>`, not the generic `RenderElement<R>` every `OverlayElement<R>` variant needs, so it can't be added to that shared enum without breaking `OverlayElement< PixmanRenderer>` (used identically by udev.rs) the moment a GLES-only variant showed up in it. `WinitElement<=GlesRenderer>` (new, winit.rs-only) wraps the existing enum as one variant instead of touching it - this is the same lesson as the fullscreen-hiding investigation earlier this session, just resolved cleanly this time: nesting a *foreign* generic type inside your own hits real bound-resolution walls; wrapping your own already-working type inside a new concrete-renderer enum doesn't, because smithay's own `render_elements!` macro documents exactly this `<=ConcreteRenderer>` form. Config: `general.rounded_corners` (default `true`), `srd.window` unaffected - this is a `general.*` compositor-behavior knob, not a per-window rule action like `opacity`. Verified live: shader compiles without error on this machine's real Mesa/ llvmpipe GL driver, and a decorated wezterm window's bottom-left and bottom-right corners both show a real, smoothly anti-aliased curve on the actual client-rendered pixels (not a compositor bitmap) in a host-session screenshot - qualitatively sharper than `round_top_corners`' deliberate hard cutoff, since a GPU shader can afford a ~2px smoothstep a CPU bitmap pass isn't worth adding for. cargo build --workspace (all 9 crates), cargo clippy --workspace (0 new warnings), cargo test --workspace (197 tests, 0 failed).
2024-06-22Bypass smithay's Space rendering for window/layer content: real per-window ↵srdusr1-2/+18
opacity The user asked for per-window opacity (MISSING.md's `windowrule = opacity` gap) and pushed back on treating smithay's convenience wrappers as a hard ceiling: "don't rely on smithay, it won't have everything we need." Looked again at why opacity was ruled out earlier - `render_output`/ `space_render_elements` take one `alpha` for the whole frame's `self.space` content, no per-element control - and found a path that doesn't need nesting smithay's internal `SpaceRenderElements` type (the approach that hit an unresolvable generic-bounds wall investigating fullscreen-hiding earlier): call `render_elements_from_surface_tree` directly, once per window and once per layer-shell surface, each with its own alpha, wrapping the result in the *existing* `OverlayElement::Surface` variant. That primitive was already proven safe in this codebase (cursor.rs's client-image path, this file's own popup rendering) - reusing it here for a window's main content is the same call, not a new one. Both `udev.rs` and `winit.rs`'s render loops now build window content and layer-shell surfaces themselves (`elements.rs`: `surface_content_elements`, `output_layer_elements`, `window_wl_surface` for the Wayland/XWayland split), in the correct front-to-back order, then call `OutputDamageTracker::render_output` directly instead of the `space::render_output`/`space_render_elements` convenience wrappers. Content itself needs no occlusion clipping against `occluders` (unlike border/ titlebar bitmaps) - pushed in the same front-to-back order as everything else, ordinary painter's-algorithm draw order already occludes it correctly, the same property it had via `self.space`'s own order before. `self.space` stays mapped and `resync_stacking_order`-maintained exactly as before; only the render step stopped reading from it. A comment in winit.rs's render loop warned that a near-identical earlier attempt was reverted for a real ordering bug (whichever window was created first always painted in front, regardless of focus). That bug's actual root cause, identified and fixed since, was `Space::map_element` silently re-stacking on every geometry sync, independent of which render path was used - see `resync_stacking_order`. This rewrite never reads `Space`'s internal order for rendering at all (`ids` comes from `WindowManager.order` directly, the same source `hit_test` already trusts), so that specific bug class can't recur here regardless of whether `resync_stacking_order` ever drifts again. Bonus from the same infrastructure: the bar/dock now genuinely don't render at all (not just get covered) for a fullscreen window - `output_layer_elements` skips `Layer::Top`/`Overlay` entirely when any visible window is fullscreen, the hardening this work backed away from earlier for being too risky to build via the nested-SpaceRenderElements approach. `capture_offscreen` (winit.rs's screencopy path) picked up opacity-aware content and layer-shell inclusion too, though not full parity with the on-screen loop (still no border/shadow strips there - a pre-existing, separately-flagged gap). Opacity itself: `Window.opacity` (core), `WindowRuleActions.opacity` / `srd.rule(..., { opacity = 0.9 })`, `srd.window.set_opacity()`. Caught live, before commit: opacity was wired into `add_window`'s own rule match but not `reapply_rules_if_pending` - the *only* path a class-based rule actually takes effect through for a native Wayland client, since `add_window`'s own attempt always runs against a still-empty `app_id` (see the regression test next to the existing one covering the identical historical bug for `decorated`). Found by setting an isolated `SRDWM_CONFIG_PATH` test config with `srd.rule({ class = "Alacritty" }, { opacity = 0.4 })` against a nested instance and pixel-sampling a real screenshot: predicted blend (242,230,53) at 0.4 over (10,10,15) is (103,98,30); measured (105,100,33). Verified live in a nested session, screenshotting the *host* compositor (shows the real on-screen render, unlike grim against the nested socket, which - separately discovered this work - routes through `capture_offscreen`): stacking order correct with two overlapping windows (topmost fully occludes the one behind it, the exact scenario the reverted attempt got wrong), opacity blend matches prediction. Also confirmed, by testing the previous commit against the same scene, that upside-down content on this backend is a pre-existing bug unrelated to this change -- noted, not fixed here. cargo build --workspace (all 9 crates), cargo clippy --workspace (0 new warnings), cargo test --workspace (197 tests, 0 failed, includes 2 new regression tests).
2024-06-20Add drop shadows and shrink the resize grab margin that was eating content ↵srdusr1-0/+3
clicks Two independent daily-driving gaps closed in one pass, both from MISSING.md and live user feedback: Drop shadows (general.shadows, default true). Reuses the exact "bitmap drawn outside geometry, cached like the border" technique border_strips/ render_border_top already established - decoration::shadow_bitmap rasterizes a linear alpha falloff (Chebyshev/square-ring distance, not a true blur -- no blur primitive exists without a GPU shader, and the udev backend's PixmanRenderer is software-only) from SHADOW_MAX_ALPHA (90/255, deliberately subtle) at the window's own edge down to fully transparent SHADOW_SIZE (12px) out. Cached in CompState::shadow_buffers, rebuilt at the same trigger points as border_top_decorations (redraw_decoration_buffer), for the identical damage-tracking reason: a fresh Id every frame means OutputDamageTracker never finds a previous-frame match. No shadow for a maximized or fullscreen window, matching the Hyprland/GNOME convention MISSING.md measures against. Resize grab margin: 10px -> 6px (general.resize_margin, now configurable, same call-site-count-preserving change as threading a new parameter through one indirection point: ResizeEdge::hit_test's only production caller is WindowManager::hit_test, so this didn't need touching every backend despite hit_test being shared verbatim across X11/Wayland/Windows/macOS). Reported live: ordinary clicks near any window edge - a link near a browser's edge, a button near a panel's edge - regularly registered as a resize-edge grab instead of reaching the client, not just an occasional near-miss, because the 10px band was measured inward from the client's own content rect. 6px stays comfortably grabbable while giving content back most of its edge. Verified: cargo build --workspace (all 9 crates including the windows/macos stub backends), cargo clippy --workspace (0 new warnings), cargo test across core/wayland/config/x11 (188 tests, 0 failed). Shadow rendering verified at the render-element level live in a nested session (correct geometry, alpha, buffer contents) - grim/screencopy itself turned out to route through winit.rs's separate capture_offscreen path, which only ever drew `decorations` (titlebars), never borders or shadows, so screenshots taken this way have never shown either; a real gap, not fixed in this pass.
2024-05-30Fix decoration drift during animated transitions; checkpoint ↵srdusr1-8/+200
IPC/global-menu/output-management work Border/titlebar decoration was built from Window.geometry (the animation's final target) in both wayland backends' render loops, while sync_geometry already draws a window's actual content at window_anims' interpolated rect during any maximize/fullscreen/open-slide tween. Border and content read two different rectangles for the whole transition, so the border visibly detached from the window it was outlining - reported as "borders aren't flush." Both udev.rs and winit.rs now read the same animated rect for titlebar placement, border-strip placement, and the occlusion test against later windows in stacking order. Verified: cargo build --workspace, cargo clippy (0 new warnings), cargo test -p srdwm-core (111/111). Also checkpoints substantial protocol/IPC work from prior sessions that had accumulated uncommitted: gtk-shell1 support (gtk_shell.rs, the vendored gtk-shell.xml, xwayland.rs's X11-side mirror) backing the global app menu; zwlr_foreign_toplevel_manager_v1 (foreign_toplevel.rs) broadcasting distinct maximized/minimized/fullscreen/activated state per window; output_management (ext-output-management + layer-shell exclusive-zone reservation tracking); workspace.rs and context_menu.rs; a Unix-socket IPC crate (platform/src/ ipc.rs) and a `srd` control-CLI crate (crates/ctl); xkb_config.rs; and a theme module (core/src/theme.rs). A peer session working the AGS shell concurrently verified several of these live against a running srdwm: the global menu rendering a real app's File/Edit menu over gtk-shell1, and foreign-toplevel correctly reporting maximized and fullscreen as independent, non-simultaneous states with the geometry each implies (maximize stops at a reserved top bar and past a dock; fullscreen reaches the true monitor edge).
2024-05-29Config at ~/.config/srd; cursor shapes, key repeat, pin, mouse defaultssrdusr1-0/+70
Config path drops a level: ~/.config/srd, not ~/.config/srdwm/srd, which said the same thing twice. No other user-facing path had the same problem -- srdwm reads the config dir and writes nothing else. Cursor shapes. A client's own cursor surface is now rendered with the hotspot it declared, so an I-beam over text or a hand over a link shows the app's image instead of srdwm's arrow. The built-in arrow stays as the fallback when no client has set one, over decorations and the desktop. Named shapes still fall back to the arrow; most toolkits set a surface. Decorations and cursors now share one OverlayElement type, since render_output takes a single custom-element slice. Key repeat (srd.bind_repeat, Hyprland's binde). Held volume, brightness and switcher keys repeat at the seat's own rate rather than firing once. Driven from the poll loop, not a timer source: the winit backend has no calloop loop of its own, and poll_events already runs continuously in both backends. Repeat stops when *that* key is released, not when any key is. Always-on-top / pin, for the picture-in-picture and HUD rules that used it. Window::always_on_top was another declared-but-never-read field. Enforced in WindowManager's stacking order rather than at render time, so every consumer of stacking_order gets it and none can forget to honour it. Mouse-only window management, checked end to end: drag the titlebar to move, drag any edge or corner to resize, titlebar buttons to close/maximise/ minimise, click to focus, drag to a screen edge to snap, and now double-click the titlebar to maximise. The resize grab band went from 6px to 10px - a hairline is genuinely hard to hit with a mouse, which is why Hyprland ships extend_border_grab_area. Also removed the emoji status markers from docs/IMPLEMENTATION_STATUS.md.
2024-05-14Draw a cursor, handle the lid, and everything a real config needssrdusr1-7/+95
Groundwork for actually daily-driving this: porting the user's Hyprland config exposed what srdwm couldn't yet express, and testing on a bare TTY exposed something worse. A visible mouse cursor. Nothing drew a pointer at all - on a bare TTY the mouse was simply invisible. It hid because the nested backend runs inside another compositor, which draws a cursor over srdwm's window; only the DRM backend, i.e. the actual session path, was affected. A built-in arrow is now composited above everything on the output the pointer is on. It's a reviewable ASCII bitmap rather than an XCursor theme: a cursor that is always present beats a prettier one that sometimes isn't, the same reasoning as decoration.rs's font fallback. Client-set cursor surfaces and named shapes are still not rendered, so an app asking for an I-beam gets the arrow. Lid switch. libinput switch events are handled and surfaced to config as srd.on("lid_closed"/"lid_open", fn), so closing the lid can lock and suspend instead of doing nothing. Config-driven additions, each needed by a binding in the ported config and none of which existed: fullscreen (Window.fullscreen was a dead field -- declared, never read or written), directional window move that swaps with the neighbour and reorders the stack so tiling follows, focus cycling, modifier+drag to move/resize anywhere in a window rather than only by the titlebar, modifier+scroll to change workspace, and 8 XF86 media/power keysyms taken from the system's own XF86keysym.h. The keysym tables are hand-maintained in both directions and a key missing from either fails silently, so a round-trip test now covers every one the configs bind. Verified in the QEMU VM: a bare-TTY screendump shows a recognisable arrow at the pointer position (113 white fill + 58 black outline pixels at screen centre, where the pointer starts).
2024-04-02Add window rules, real config validation, and a Wayland DRM/udev backendsrdusr1-1/+276
- srd.rule(): match windows by title/class, apply floating/maximized/ workspace/geometry/decoration actions on creation (crates/core/src/rules.rs) - srd.validate_config()/srd.debug.*: real range/format checks and status/profiling helpers, replacing the always-true stub - Wayland titlebar text rendering via fontdue, unit-tested without a display (crates/wayland/src/decoration.rs) - Wayland precise keybinding matching, replacing the "any Super-held key" heuristic, sharing the keysym table with X11 (moved to crates/core/src/keysyms.rs) - Wayland DRM/udev backend (crates/wayland/src/udev.rs): runs as the real compositor on a bare TTY via libseat/libinput/KMS, software rendering via Pixman + dumb buffers (no GBM/EGL required) - srdwm_platform::detect() fix, found via VM testing: a bare TTY with no DISPLAY/WAYLAND_DISPLAY now correctly resolves to Wayland instead of an X11 backend that can never work there - XWayland integration groundwork (crates/wayland/src/xwayland.rs): spawn, X11Wm, and full XwmHandler event routing into the same WindowManager/ Space pipeline as native clients. Windows don't render yet - a real glamor-vs-software-renderer conflict in XWayland's own fallback path, root-caused via WAYLAND_DEBUG tracing and documented in docs/IMPLEMENTATION_STATUS.md rather than worked around blind. All verified live in an isolated QEMU VM: X11 backend shows two decorated, correctly-tiled xterms with real title text; the DRM/udev Wayland backend opens the GPU, initializes input, and scans out a rendered frame via KMS page-flip.
2024-04-02Rewrite srdwm in Rust: working X11 and Wayland backends, Lua configsrdusr1-0/+788
The C++ prototype (moved to legacy-cpp/) was mostly a design skeleton: X11 and Windows backends were partially real, Wayland created the wlroots object graph but never wired a single event listener, macOS was stub except monitor enumeration, and the Lua engine's srd.bind() stored a key-combo string but never the actual closure. See docs/PRIOR_ART.md for the full audit. This replaces it with a Cargo workspace: - srdwm-core: platform-independent window/workspace/monitor state, a real master-stack tiling layout, and SmartPlacement grid/cascade/ snap-to-edge placement - fixing several bugs in the C++ version (hardcoded 2-column grid, cascade that never cascaded, snap-to-edge that always returned a fixed rect). 35 unit tests. - srdwm-config: the srd Lua API via mlua, implementing the surface docs/DEFAULTS.md always documented but the C++ engine never actually built (srd.window.close()/focus(direction), srd.workspace.next(), real keybinding closures, require("srd") support). 10 unit tests. - srdwm-x11: a real reparenting WM with a drawn title bar (buttons, drag, resize), verified live under Xephyr - frame placement and client offset match srdwm-core's computed geometry exactly, and the decoration renders correctly on screen. - srdwm-wayland: a from-scratch smithay compositor (the C++ version had nothing working to port from) - runs via the winit backend, tracks xdg-shell toplevels through the same WindowManager and hit-testing code X11 uses, verified to start/render/run without crashing. Decorations are solid-color (no text yet); see docs/IMPLEMENTATION_STATUS.md for exact scope. - srdwm-windows / srdwm-macos: structured, cfg-gated designs informed by komorebi/glazewm and yabai/AeroSpace respectively (see docs/PRIOR_ART.md), honestly marked as unbuilt/unverified since this sandbox has no Windows or macOS target.