Surface runtime projecting Pure views across pixel, terminal, CLI, and web. http://git.yeowoo.org/vega/atom?h=master 2026-09-27T12:45:31Z 2026-09-27T12:45:31Z eunhhu necpition205@gmail.com 2026-09-27T12:45:31Z urn:sha1:2920e389f624263efe515d9a5f33f6b822efff5e src/ held two parts, the surfaces that show modules to people and the symbol format with its CPU and GPU drawing. As in Pure (design 009), top level directories are now the parts, and the README says what each builds. 2026-09-27T12:02:41Z eunhhu necpition205@gmail.com 2026-09-27T12:02:41Z urn:sha1:ba76d3810713bb67569114e9458416df0f78687a OpenGL ES 3.1: the file's points go up as one storage buffer, each symbol gets 16 row bands listing the curves they reach (cut by integer division of doubled coordinates, so CPU and shader agree), and every pixel of a symbol's box sums the exact area of its bands' curves, as vega_coverage does. vega-symbols gpu draws every symbol against the CPU reference and times 1080p pages. On the Pi 5's V3D it matches the reference (mean 0.001-0.1 levels, worst 4) but takes 142-757 ms a page, 83% of it in the area function. A sorting network in registers made it 2.3x faster yet computes wrong rows in the fragment stage with this driver, while the same code is exact in a compute shader; so drawing each glyph size once into an atlas by compute comes next. 2026-09-27T07:56:47Z eunhhu necpition205@gmail.com 2026-09-27T07:56:47Z urn:sha1:2acf27f665f8a926d244efa58f6ef2c92d65e8c4 Format 2 (VEGASYM2) writes each contour as a chain of 4-byte points, on or off the curve as in TrueType: endpoints are shared, lines have no control point, and two off points imply the on point between them. A curve is still had from one point and its two neighbours, so a GPU can point at curves by point index and upload the table as it is. Cubics (CFF, SVG curves and arcs) become quadratic splines the cu2qu way, joins left implied, within a unit. Files are about half of format 1: 1.3-1.4x a TrueType font's glyf (the whole subset font's size), 2.0-2.9x CFF, 2.6x smaller than the SVG icons. Opening checks each symbol's first and last point instead of every curve: 0.34 ms rather than 19 ms for 11,172 Hangul syllables. Points decode without branching on their flags (9.7 ns a point), still 1.2-10x cheaper than FreeType's outline. Glyph advances were half their width since outlines are doubled for FreeType's implied points; they now match hmtx, and the check says so. 2026-09-27T07:44:42Z eunhhu necpition205@gmail.com 2026-09-27T07:44:42Z urn:sha1:523b810d6a9c60342c7f5d74f36fe66f3f2057e9 Symbol files (VEGASYM1) hold glyphs and icons as quadratic curves, verified once per symbol and then read in place. vega-symbols builds them from fonts (through FreeType, losslessly: twice the font's units keeps TrueType's implied points whole) and from solid SVG paths (arcs included), refusing by name what an icon asks for that symbols cannot hold. The reference rasterizer computes each pixel's covered area exactly: every curve's integral of clamp(1 - x) dy inside the pixel, split where it crosses the pixel's sides. The Slug-style two-ray average first tried missed FreeType by 15.4 levels on average at 12 px; exact area is within 1.2-3.5 at 8-16 px, and where it differs most it matches 64x64 supersampling, not FreeType. Reaching an outline costs 4.6-29x less than through FreeType, but the files are 2.1-6.6x larger than glyf or CFF: design 002 has the numbers and the next question (points shared along contours, lines without control points). 2026-09-26T17:10:52Z eunhhu necpition205@gmail.com 2026-09-26T17:10:52Z urn:sha1:2fc9919508d283456deb440579955a631a572efe A module may now be some 2 MiB; the buffer that keeps the last module's bytes (for --watch's digest) grows to the file instead of 128 KiB. 2026-09-26T16:58:26Z eunhhu necpition205@gmail.com 2026-09-26T16:58:26Z urn:sha1:b466603358f8fa5a74551a9819fdd54ad124ef0c The terminal and the web page set the time events see to the wall clock and tick an app's timers on time: each round ticks what is due, draws, then waits for input, a frame or the next tick, and a tick is news to every open page at once. Scripts have no clock: time MS sets the time the next events see and tick TIMER ticks, so an app that uses time replays exactly. A module swap reschedules the timers. examples/stopwatch.aup runs on every surface; the checks drive it by script, on a pseudo-terminal by the clock, and on the web page. 2026-09-26T10:54:31Z eunhhu necpition205@gmail.com 2026-09-26T10:54:31Z urn:sha1:8e2b3ffadcf83dba74d58dbf9ee2c57cef5f1ad5 vega tui|web MODULE --watch replaces the running app's module when its file is written again (aup watch writes it); states keep their values by name through pure_app_replace and every web page hears of it. The file is compared by the digest of its bytes, at most five times a second, so a module of the same size written within the same second is not missed; a module that does not load leaves the app as it was and is not tried again. Modules alternate between two slots so a failed load never touches the running one. Scripts get swap MODULE; whether a module runs frames is now a property of the screen. 2026-09-26T10:33:31Z eunhhu necpition205@gmail.com 2026-09-26T10:33:31Z urn:sha1:0d5effd6afe8808296a01db102ca4c247cdcd1af A list may now be filtered (each t in tasks where !t.done), and several filtered lists over one list share one focus: the focus view names an item, so Vega asks Pure which row shows it and highlights it only in the list that holds it; the other lists have no focus (null in the web surface's JSON, and the spoken surface names the item where it is). A click or point on a row points at the item that row shows, and the wheel on a list without the focus focuses the row under it. Pure's rows now take a mutable app. examples/today.aup shows what is open and what is done; its CLI output matches a model over random adds, moves, toggles and points into either list, and the web surface leaves the other list without a focus. 2026-09-26T10:10:44Z eunhhu necpition205@gmail.com 2026-09-26T10:10:44Z urn:sha1:f0a37de5bc9cf924494878e4ab8d3023ddbb27bd The Enter button matches the input beside it, and the key legend shows arrows and short names (↑ ↓ Del PgUp) instead of Pure's key names. 2026-09-26T10:08:29Z eunhhu necpition205@gmail.com 2026-09-26T10:08:29Z urn:sha1:0054ea8452a811f2745d72ce4b7764ea158f1d5f vega web MODULE serves the screen to a browser (127.0.0.1 unless given --listen): one dependency-free page draws the title, fields, lists as listboxes and tables, with tones as colors and the focus highlighted. It asks for the screen as JSON with the rows it can show per list or table, so only those cells are evaluated, scrolled like the TUI around the focus. Keys go as KeyboardEvent.code, which is Pure's key naming already; typed text commits with Enter; a click or the wheel moves the focus through pure_app_point; an event stream tells every open page of each change. Scrolling, key presses and text commits are now shared helpers. The checks drive it against the model (1,200 random steps: title, field, rows, focus, the window of items with badges and tones), check a table's columns and cells, post at random to every example, and in headless Chromium over the DevTools protocol press keys, click a row and type Korean text into the page itself.