Fix alpha blending for emojis
This commit is contained in:
Joshua Groves
Josh Groves
parent
609814de6b
commit
6cf10bba8d
6 changed files with 3992 additions and 7 deletions
1
examples/emoji-zjw.txt
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1
examples/emoji-zjw.txt
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@ -0,0 +1 @@
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I want more terminals to be able to handle ZWJ sequence emoji characters. For example, the service dog emoji 🐕🦺 is actually 3 Unicode characters. Kitty handles this fairly well. All VTE-based terminals, however, show "🐶🦺".
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3769
examples/emoji.txt
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3769
examples/emoji.txt
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File diff suppressed because it is too large
Load diff
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@ -1,4 +1,4 @@
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use cosmic_text::{Attrs, Buffer, Color, FontSystem, Metrics, SwashCache};
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use cosmic_text::{Attrs, Buffer, Color, Family, FontSystem, Metrics, SwashCache};
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use glyphon::{Resolution, TextAtlas, TextRenderer};
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use wgpu::{
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Backends, CommandEncoderDescriptor, CompositeAlphaMode, DeviceDescriptor, Features, Instance,
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@ -70,10 +70,13 @@ async fn run() {
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let mut atlas = TextAtlas::new(&device, &queue, swapchain_format);
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let mut buffer = Buffer::new(
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unsafe { FONT_SYSTEM.as_ref().unwrap() },
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Metrics::new(32, 44),
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Metrics::new(14, 20),
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);
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buffer.set_size((width as f64 * scale_factor) as i32, (height as f64) as i32);
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buffer.set_text(include_str!("./ligature.txt"), Attrs::new());
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buffer.set_text(
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include_str!("./emoji.txt"),
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Attrs::new().monospaced(true).family(Family::Monospace),
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);
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buffer.shape_until_scroll();
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event_loop.run(move |event, _, control_flow| {
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213
examples/mono.txt
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213
examples/mono.txt
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@ -0,0 +1,213 @@
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https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-demo.txt
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UTF-8 encoded sample plain-text file
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‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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Markus Kuhn [ˈmaʳkʊs kuːn] <http://www.cl.cam.ac.uk/~mgk25/> — 2002-07-25 CC BY
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The ASCII compatible UTF-8 encoding used in this plain-text file
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is defined in Unicode, ISO 10646-1, and RFC 2279.
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Using Unicode/UTF-8, you can write in emails and source code things such as
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Mathematics and sciences:
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∮ E⋅da = Q, n → ∞, ∑ f(i) = ∏ g(i), ⎧⎡⎛┌─────┐⎞⎤⎫
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⎪⎢⎜│a²+b³ ⎟⎥⎪
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∀x∈ℝ: ⌈x⌉ = −⌊−x⌋, α ∧ ¬β = ¬(¬α ∨ β), ⎪⎢⎜│───── ⎟⎥⎪
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⎪⎢⎜⎷ c₈ ⎟⎥⎪
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ℕ ⊆ ℕ₀ ⊂ ℤ ⊂ ℚ ⊂ ℝ ⊂ ℂ, ⎨⎢⎜ ⎟⎥⎬
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⎪⎢⎜ ∞ ⎟⎥⎪
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⊥ < a ≠ b ≡ c ≤ d ≪ ⊤ ⇒ (⟦A⟧ ⇔ ⟪B⟫), ⎪⎢⎜ ⎲ ⎟⎥⎪
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⎪⎢⎜ ⎳aⁱ-bⁱ⎟⎥⎪
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2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm ⎩⎣⎝i=1 ⎠⎦⎭
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Linguistics and dictionaries:
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ði ıntəˈnæʃənəl fəˈnɛtık əsoʊsiˈeıʃn
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Y [ˈʏpsilɔn], Yen [jɛn], Yoga [ˈjoːgɑ]
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APL:
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((V⍳V)=⍳⍴V)/V←,V ⌷←⍳→⍴∆∇⊃‾⍎⍕⌈
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Nicer typography in plain text files:
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╔══════════════════════════════════════════╗
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║ ║
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║ • ‘single’ and “double” quotes ║
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║ ║
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║ • Curly apostrophes: “We’ve been here” ║
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║ ║
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║ • Latin-1 apostrophe and accents: '´` ║
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║ ║
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║ • ‚deutsche‘ „Anführungszeichen“ ║
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║ ║
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║ • †, ‡, ‰, •, 3–4, —, −5/+5, ™, … ║
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║ ║
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║ • ASCII safety test: 1lI|, 0OD, 8B ║
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║ ╭─────────╮ ║
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║ • the euro symbol: │ 14.95 € │ ║
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║ ╰─────────╯ ║
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╚══════════════════════════════════════════╝
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Combining characters:
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STARGΛ̊TE SG-1, a = v̇ = r̈, a⃑ ⊥ b⃑
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Greek (in Polytonic):
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The Greek anthem:
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Σὲ γνωρίζω ἀπὸ τὴν κόψη
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τοῦ σπαθιοῦ τὴν τρομερή,
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σὲ γνωρίζω ἀπὸ τὴν ὄψη
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ποὺ μὲ βία μετράει τὴ γῆ.
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᾿Απ᾿ τὰ κόκκαλα βγαλμένη
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τῶν ῾Ελλήνων τὰ ἱερά
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καὶ σὰν πρῶτα ἀνδρειωμένη
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χαῖρε, ὦ χαῖρε, ᾿Ελευθεριά!
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From a speech of Demosthenes in the 4th century BC:
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Οὐχὶ ταὐτὰ παρίσταταί μοι γιγνώσκειν, ὦ ἄνδρες ᾿Αθηναῖοι,
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ὅταν τ᾿ εἰς τὰ πράγματα ἀποβλέψω καὶ ὅταν πρὸς τοὺς
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λόγους οὓς ἀκούω· τοὺς μὲν γὰρ λόγους περὶ τοῦ
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τιμωρήσασθαι Φίλιππον ὁρῶ γιγνομένους, τὰ δὲ πράγματ᾿
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εἰς τοῦτο προήκοντα, ὥσθ᾿ ὅπως μὴ πεισόμεθ᾿ αὐτοὶ
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πρότερον κακῶς σκέψασθαι δέον. οὐδέν οὖν ἄλλο μοι δοκοῦσιν
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οἱ τὰ τοιαῦτα λέγοντες ἢ τὴν ὑπόθεσιν, περὶ ἧς βουλεύεσθαι,
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οὐχὶ τὴν οὖσαν παριστάντες ὑμῖν ἁμαρτάνειν. ἐγὼ δέ, ὅτι μέν
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ποτ᾿ ἐξῆν τῇ πόλει καὶ τὰ αὑτῆς ἔχειν ἀσφαλῶς καὶ Φίλιππον
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τιμωρήσασθαι, καὶ μάλ᾿ ἀκριβῶς οἶδα· ἐπ᾿ ἐμοῦ γάρ, οὐ πάλαι
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γέγονεν ταῦτ᾿ ἀμφότερα· νῦν μέντοι πέπεισμαι τοῦθ᾿ ἱκανὸν
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προλαβεῖν ἡμῖν εἶναι τὴν πρώτην, ὅπως τοὺς συμμάχους
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σώσομεν. ἐὰν γὰρ τοῦτο βεβαίως ὑπάρξῃ, τότε καὶ περὶ τοῦ
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τίνα τιμωρήσεταί τις καὶ ὃν τρόπον ἐξέσται σκοπεῖν· πρὶν δὲ
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τὴν ἀρχὴν ὀρθῶς ὑποθέσθαι, μάταιον ἡγοῦμαι περὶ τῆς
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τελευτῆς ὁντινοῦν ποιεῖσθαι λόγον.
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Δημοσθένους, Γ´ ᾿Ολυνθιακὸς
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Georgian:
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From a Unicode conference invitation:
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გთხოვთ ახლავე გაიაროთ რეგისტრაცია Unicode-ის მეათე საერთაშორისო
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კონფერენციაზე დასასწრებად, რომელიც გაიმართება 10-12 მარტს,
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ქ. მაინცში, გერმანიაში. კონფერენცია შეჰკრებს ერთად მსოფლიოს
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ექსპერტებს ისეთ დარგებში როგორიცაა ინტერნეტი და Unicode-ი,
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ინტერნაციონალიზაცია და ლოკალიზაცია, Unicode-ის გამოყენება
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ოპერაციულ სისტემებსა, და გამოყენებით პროგრამებში, შრიფტებში,
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ტექსტების დამუშავებასა და მრავალენოვან კომპიუტერულ სისტემებში.
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Russian:
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From a Unicode conference invitation:
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Зарегистрируйтесь сейчас на Десятую Международную Конференцию по
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Unicode, которая состоится 10-12 марта 1997 года в Майнце в Германии.
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Конференция соберет широкий круг экспертов по вопросам глобального
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Интернета и Unicode, локализации и интернационализации, воплощению и
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применению Unicode в различных операционных системах и программных
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приложениях, шрифтах, верстке и многоязычных компьютерных системах.
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Thai (UCS Level 2):
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Excerpt from a poetry on The Romance of The Three Kingdoms (a Chinese
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classic 'San Gua'):
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[----------------------------|------------------------]
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๏ แผ่นดินฮั่นเสื่อมโทรมแสนสังเวช พระปกเกศกองบู๊กู้ขึ้นใหม่
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สิบสองกษัตริย์ก่อนหน้าแลถัดไป สององค์ไซร้โง่เขลาเบาปัญญา
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ทรงนับถือขันทีเป็นที่พึ่ง บ้านเมืองจึงวิปริตเป็นนักหนา
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โฮจิ๋นเรียกทัพทั่วหัวเมืองมา หมายจะฆ่ามดชั่วตัวสำคัญ
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เหมือนขับไสไล่เสือจากเคหา รับหมาป่าเข้ามาเลยอาสัญ
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ฝ่ายอ้องอุ้นยุแยกให้แตกกัน ใช้สาวนั้นเป็นชนวนชื่นชวนใจ
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พลันลิฉุยกุยกีกลับก่อเหตุ ช่างอาเพศจริงหนาฟ้าร้องไห้
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ต้องรบราฆ่าฟันจนบรรลัย ฤๅหาใครค้ำชูกู้บรรลังก์ ฯ
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(The above is a two-column text. If combining characters are handled
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correctly, the lines of the second column should be aligned with the
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| character above.)
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Ethiopian:
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Proverbs in the Amharic language:
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ሰማይ አይታረስ ንጉሥ አይከሰስ።
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ብላ ካለኝ እንደአባቴ በቆመጠኝ።
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ጌጥ ያለቤቱ ቁምጥና ነው።
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ደሀ በሕልሙ ቅቤ ባይጠጣ ንጣት በገደለው።
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የአፍ ወለምታ በቅቤ አይታሽም።
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አይጥ በበላ ዳዋ ተመታ።
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ሲተረጉሙ ይደረግሙ።
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ቀስ በቀስ፥ ዕንቁላል በእግሩ ይሄዳል።
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ድር ቢያብር አንበሳ ያስር።
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ሰው እንደቤቱ እንጅ እንደ ጉረቤቱ አይተዳደርም።
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እግዜር የከፈተውን ጉሮሮ ሳይዘጋው አይድርም።
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የጎረቤት ሌባ፥ ቢያዩት ይስቅ ባያዩት ያጠልቅ።
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ሥራ ከመፍታት ልጄን ላፋታት።
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ዓባይ ማደሪያ የለው፥ ግንድ ይዞ ይዞራል።
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የእስላም አገሩ መካ የአሞራ አገሩ ዋርካ።
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ተንጋሎ ቢተፉ ተመልሶ ባፉ።
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ወዳጅህ ማር ቢሆን ጨርስህ አትላሰው።
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እግርህን በፍራሽህ ልክ ዘርጋ።
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Runes:
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ᚻᛖ ᚳᚹᚫᚦ ᚦᚫᛏ ᚻᛖ ᛒᚢᛞᛖ ᚩᚾ ᚦᚫᛗ ᛚᚪᚾᛞᛖ ᚾᚩᚱᚦᚹᛖᚪᚱᛞᚢᛗ ᚹᛁᚦ ᚦᚪ ᚹᛖᛥᚫ
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(Old English, which transcribed into Latin reads 'He cwaeth that he
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bude thaem lande northweardum with tha Westsae.' and means 'He said
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that he lived in the northern land near the Western Sea.')
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Braille:
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⡌⠁⠧⠑ ⠼⠁⠒ ⡍⠜⠇⠑⠹⠰⠎ ⡣⠕⠌
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⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠙⠑⠁⠙⠒ ⠞⠕ ⠃⠑⠛⠔ ⠺⠊⠹⠲ ⡹⠻⠑ ⠊⠎ ⠝⠕ ⠙⠳⠃⠞
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⠱⠁⠞⠑⠧⠻ ⠁⠃⠳⠞ ⠹⠁⠞⠲ ⡹⠑ ⠗⠑⠛⠊⠌⠻ ⠕⠋ ⠙⠊⠎ ⠃⠥⠗⠊⠁⠇ ⠺⠁⠎
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⠎⠊⠛⠝⠫ ⠃⠹ ⠹⠑ ⠊⠇⠻⠛⠹⠍⠁⠝⠂ ⠹⠑ ⠊⠇⠻⠅⠂ ⠹⠑ ⠥⠝⠙⠻⠞⠁⠅⠻⠂
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⠁⠝⠙ ⠹⠑ ⠡⠊⠑⠋ ⠍⠳⠗⠝⠻⠲ ⡎⠊⠗⠕⠕⠛⠑ ⠎⠊⠛⠝⠫ ⠊⠞⠲ ⡁⠝⠙
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⡎⠊⠗⠕⠕⠛⠑⠰⠎ ⠝⠁⠍⠑ ⠺⠁⠎ ⠛⠕⠕⠙ ⠥⠏⠕⠝ ⠰⡡⠁⠝⠛⠑⠂ ⠋⠕⠗ ⠁⠝⠹⠹⠔⠛ ⠙⠑
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⠡⠕⠎⠑ ⠞⠕ ⠏⠥⠞ ⠙⠊⠎ ⠙⠁⠝⠙ ⠞⠕⠲
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⡕⠇⠙ ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
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⡍⠔⠙⠖ ⡊ ⠙⠕⠝⠰⠞ ⠍⠑⠁⠝ ⠞⠕ ⠎⠁⠹ ⠹⠁⠞ ⡊ ⠅⠝⠪⠂ ⠕⠋ ⠍⠹
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⠪⠝ ⠅⠝⠪⠇⠫⠛⠑⠂ ⠱⠁⠞ ⠹⠻⠑ ⠊⠎ ⠏⠜⠞⠊⠊⠥⠇⠜⠇⠹ ⠙⠑⠁⠙ ⠁⠃⠳⠞
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⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲ ⡊ ⠍⠊⠣⠞ ⠙⠁⠧⠑ ⠃⠑⠲ ⠔⠊⠇⠔⠫⠂ ⠍⠹⠎⠑⠇⠋⠂ ⠞⠕
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⠗⠑⠛⠜⠙ ⠁ ⠊⠕⠋⠋⠔⠤⠝⠁⠊⠇ ⠁⠎ ⠹⠑ ⠙⠑⠁⠙⠑⠌ ⠏⠊⠑⠊⠑ ⠕⠋ ⠊⠗⠕⠝⠍⠕⠝⠛⠻⠹
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⠔ ⠹⠑ ⠞⠗⠁⠙⠑⠲ ⡃⠥⠞ ⠹⠑ ⠺⠊⠎⠙⠕⠍ ⠕⠋ ⠳⠗ ⠁⠝⠊⠑⠌⠕⠗⠎
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⠊⠎ ⠔ ⠹⠑ ⠎⠊⠍⠊⠇⠑⠆ ⠁⠝⠙ ⠍⠹ ⠥⠝⠙⠁⠇⠇⠪⠫ ⠙⠁⠝⠙⠎
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⠩⠁⠇⠇ ⠝⠕⠞ ⠙⠊⠌⠥⠗⠃ ⠊⠞⠂ ⠕⠗ ⠹⠑ ⡊⠳⠝⠞⠗⠹⠰⠎ ⠙⠕⠝⠑ ⠋⠕⠗⠲ ⡹⠳
|
||||
⠺⠊⠇⠇ ⠹⠻⠑⠋⠕⠗⠑ ⠏⠻⠍⠊⠞ ⠍⠑ ⠞⠕ ⠗⠑⠏⠑⠁⠞⠂ ⠑⠍⠏⠙⠁⠞⠊⠊⠁⠇⠇⠹⠂ ⠹⠁⠞
|
||||
⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
|
||||
|
||||
(The first couple of paragraphs of "A Christmas Carol" by Dickens)
|
||||
|
||||
Compact font selection example text:
|
||||
|
||||
ABCDEFGHIJKLMNOPQRSTUVWXYZ /0123456789
|
||||
abcdefghijklmnopqrstuvwxyz £©µÀÆÖÞßéöÿ
|
||||
–—‘“”„†•…‰™œŠŸž€ ΑΒΓΔΩαβγδω АБВГДабвгд
|
||||
∀∂∈ℝ∧∪≡∞ ↑↗↨↻⇣ ┐┼╔╘░►☺♀ fi<>⑀₂ἠḂӥẄɐː⍎אԱა
|
||||
|
||||
Greetings in various languages:
|
||||
|
||||
Hello world, Καλημέρα κόσμε, コンニチハ
|
||||
|
||||
Box drawing alignment tests: █
|
||||
▉
|
||||
╔══╦══╗ ┌──┬──┐ ╭──┬──╮ ╭──┬──╮ ┏━━┳━━┓ ┎┒┏┑ ╷ ╻ ┏┯┓ ┌┰┐ ▊ ╱╲╱╲╳╳╳
|
||||
║┌─╨─┐║ │╔═╧═╗│ │╒═╪═╕│ │╓─╁─╖│ ┃┌─╂─┐┃ ┗╃╄┙ ╶┼╴╺╋╸┠┼┨ ┝╋┥ ▋ ╲╱╲╱╳╳╳
|
||||
║│╲ ╱│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╿ │┃ ┍╅╆┓ ╵ ╹ ┗┷┛ └┸┘ ▌ ╱╲╱╲╳╳╳
|
||||
╠╡ ╳ ╞╣ ├╢ ╟┤ ├┼─┼─┼┤ ├╫─╂─╫┤ ┣┿╾┼╼┿┫ ┕┛┖┚ ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳
|
||||
║│╱ ╲│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╽ │┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▎
|
||||
║└─╥─┘║ │╚═╤═╝│ │╘═╪═╛│ │╙─╀─╜│ ┃└─╂─┘┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▏
|
||||
╚══╩══╝ └──┴──┘ ╰──┴──╯ ╰──┴──╯ ┗━━┻━━┛ ▗▄▖▛▀▜ └╌╌┘ ╎ ┗╍╍┛ ┋ ▁▂▃▄▅▆▇█
|
||||
▝▀▘▙▄▟
|
||||
|
|
@ -184,7 +184,7 @@ impl TextAtlas {
|
|||
entry_point: "fs_main",
|
||||
targets: &[Some(ColorTargetState {
|
||||
format,
|
||||
blend: Some(BlendState::PREMULTIPLIED_ALPHA_BLENDING),
|
||||
blend: Some(BlendState::ALPHA_BLENDING),
|
||||
write_mask: ColorWrites::default(),
|
||||
})],
|
||||
}),
|
||||
|
|
|
|||
|
|
@ -110,11 +110,10 @@ impl TextRenderer {
|
|||
match image.content {
|
||||
SwashContent::Color => {}
|
||||
SwashContent::Mask => {
|
||||
// Technically only one channel is needed, but store the mask in every
|
||||
// for now.
|
||||
// Technically only one channel is needed, but store the mask only in the alpha channel for now.
|
||||
bitmap = bitmap
|
||||
.iter()
|
||||
.flat_map(|color| iter::repeat(*color).take(NUM_ATLAS_CHANNELS))
|
||||
.flat_map(|color| iter::repeat(255).take(NUM_ATLAS_CHANNELS - 1).chain(iter::once(*color)))
|
||||
.collect();
|
||||
}
|
||||
SwashContent::SubpixelMask => {
|
||||
|
|
|
|||
Loading…
Reference in a new issue