font: add stylistic variants for built-in font, fix naming convention

Fixes #2364

This adds the bold, italic, and bold italic variants of JB Mono so it is
built-in. This also fixes up the naming convention for the embedded font
files across tests and removes redundant embedded font files.

src/Surface.zig

@@ -4338,8 +4338,3 @@ fn presentSurface(self: *Surface) !void {
         {},
     );
 }
-
-pub const face_ttf = @embedFile("font/res/JetBrainsMono-Regular.ttf");
-pub const face_bold_ttf = @embedFile("font/res/JetBrainsMono-Bold.ttf");
-pub const face_emoji_ttf = @embedFile("font/res/NotoColorEmoji.ttf");
-pub const face_emoji_text_ttf = @embedFile("font/res/NotoEmoji-Regular.ttf");

src/font/CodepointResolver.zig

@@ -376,9 +376,9 @@ const DescriptorCache = std.HashMapUnmanaged(
 test getIndex {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
-    const testEmoji = @import("test.zig").fontEmoji;
-    const testEmojiText = @import("test.zig").fontEmojiText;
+    const testFont = font.embedded.regular;
+    const testEmoji = font.embedded.emoji;
+    const testEmojiText = font.embedded.emoji_text;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -456,7 +456,7 @@ test getIndex {
 test "getIndex disabled font style" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var atlas_grayscale = try font.Atlas.init(alloc, 512, .grayscale);
     defer atlas_grayscale.deinit(alloc);

src/font/Collection.zig

@@ -203,11 +203,11 @@ pub const CompleteError = Allocator.Error || error{
 };
 
 /// Ensure we have an option for all styles in the collection, such
-/// as italic and bold.
+/// as italic and bold by synthesizing them if necessary from the
+/// first regular face that has text glyphs.
 ///
-/// This requires that a regular font face is already loaded.
-/// This is asserted. If a font style is missing, we will synthesize
-/// it if possible. Otherwise, we will use the regular font style.
+/// If there is no regular face that has text glyphs, then this
+/// does nothing.
 pub fn completeStyles(
     self: *Collection,
     alloc: Allocator,
@@ -229,7 +229,7 @@ pub fn completeStyles(
     // if a user configures something like an Emoji font first.
     const regular_entry: *Entry = entry: {
         const list = self.faces.getPtr(.regular);
-        assert(list.count() > 0);
+        if (list.count() == 0) return;
 
         // Find our first regular face that has text glyphs.
         var it = list.iterator(0);
@@ -663,7 +663,7 @@ test init {
 test "add full" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -709,7 +709,7 @@ test "add deferred without loading options" {
 test getFace {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -733,7 +733,7 @@ test getFace {
 test getIndex {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -764,7 +764,7 @@ test getIndex {
 test completeStyles {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -791,7 +791,7 @@ test completeStyles {
 test setSize {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -814,7 +814,7 @@ test setSize {
 test hasCodepoint {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -838,7 +838,7 @@ test "hasCodepoint emoji default graphical" {
 
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testEmoji = @import("test.zig").fontEmoji;
+    const testEmoji = font.embedded.emoji;
 
     var lib = try Library.init();
     defer lib.deinit();

src/font/SharedGrid.zig

@@ -323,7 +323,7 @@ const GlyphKey = struct {
 const TestMode = enum { normal };
 
 fn testGrid(mode: TestMode, alloc: Allocator, lib: Library) !SharedGrid {
-    const testFont = @import("test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var c = Collection.init();
     c.load_options = .{ .library = lib };

src/font/SharedGridSet.zig

@@ -245,13 +245,46 @@ fn collection(
         }
     }
 
+    // Complete our styles to ensure we have something to satisfy every
+    // possible style request. We do this before adding our built-in font
+    // because we want to ensure our built-in styles are fallbacks to
+    // the configured styles.
+    try c.completeStyles(self.alloc, config.@"font-synthetic-style");
+
     // Our built-in font will be used as a backup
     _ = try c.add(
         self.alloc,
         .regular,
         .{ .fallback_loaded = try Face.init(
             self.font_lib,
-            face_ttf,
+            font.embedded.regular,
+            load_options.faceOptions(),
+        ) },
+    );
+    _ = try c.add(
+        self.alloc,
+        .bold,
+        .{ .fallback_loaded = try Face.init(
+            self.font_lib,
+            font.embedded.bold,
+            load_options.faceOptions(),
+        ) },
+    );
+    _ = try c.add(
+        self.alloc,
+        .italic,
+        .{ .fallback_loaded = try Face.init(
+            self.font_lib,
+            font.embedded.italic,
+            load_options.faceOptions(),
+        ) },
+    );
+    _ = try c.add(
+        self.alloc,
+        .bold_italic,
+        .{ .fallback_loaded = try Face.init(
+            self.font_lib,
+            font.embedded.bold_italic,
             load_options.faceOptions(),
         ) },
     );
@@ -284,7 +317,7 @@ fn collection(
             .regular,
             .{ .fallback_loaded = try Face.init(
                 self.font_lib,
-                face_emoji_ttf,
+                font.embedded.emoji,
                 load_options.faceOptions(),
             ) },
         );
@@ -293,16 +326,12 @@ fn collection(
             .regular,
             .{ .fallback_loaded = try Face.init(
                 self.font_lib,
-                face_emoji_text_ttf,
+                font.embedded.emoji_text,
                 load_options.faceOptions(),
             ) },
         );
     }
 
-    // Complete our styles to ensure we have something to satisfy every
-    // possible style request.
-    try c.completeStyles(self.alloc, config.@"font-synthetic-style");
-
     return c;
 }
 
@@ -633,11 +662,6 @@ pub const Key = struct {
     }
 };
 
-const face_ttf = @embedFile("res/JetBrainsMono-Regular.ttf");
-const face_bold_ttf = @embedFile("res/JetBrainsMono-Bold.ttf");
-const face_emoji_ttf = @embedFile("res/NotoColorEmoji.ttf");
-const face_emoji_text_ttf = @embedFile("res/NotoEmoji-Regular.ttf");
-
 test "Key" {
     const testing = std.testing;
     const alloc = testing.allocator;

src/font/embedded.zig

@@ -0,0 +1,35 @@
+//! Fonts that can be embedded with Ghostty. Note they are only actually
+//! embedded in the binary if they are referenced by the code, so fonts
+//! used for tests will not result in the final binary being larger.
+//!
+//! Be careful to ensure that any fonts you embed are licensed for
+//! redistribution and include their license as necessary.
+
+/// Default fonts that we prefer for Ghostty.
+pub const regular = @embedFile("res/JetBrainsMonoNerdFont-Regular.ttf");
+pub const bold = @embedFile("res/JetBrainsMonoNerdFont-Bold.ttf");
+pub const italic = @embedFile("res/JetBrainsMonoNerdFont-Italic.ttf");
+pub const bold_italic = @embedFile("res/JetBrainsMonoNerdFont-BoldItalic.ttf");
+pub const emoji = @embedFile("res/NotoColorEmoji.ttf");
+pub const emoji_text = @embedFile("res/NotoEmoji-Regular.ttf");
+
+/// Fonts with general properties
+pub const variable = @embedFile("res/Lilex-VF.ttf");
+
+/// Font with nerd fonts embedded.
+pub const nerd_font = @embedFile("res/JetBrainsMonoNerdFont-Regular.ttf");
+
+/// Specific font families below:
+pub const code_new_roman = @embedFile("res/CodeNewRoman-Regular.otf");
+pub const inconsolata = @embedFile("res/Inconsolata-Regular.ttf");
+pub const geist_mono = @embedFile("res/GeistMono-Regular.ttf");
+pub const jetbrains_mono = @embedFile("res/JetBrainsMonoNoNF-Regular.ttf");
+pub const julia_mono = @embedFile("res/JuliaMono-Regular.ttf");
+
+/// Cozette is a unique font because it embeds some emoji characters
+/// but has a text presentation.
+pub const cozette = @embedFile("res/CozetteVector.ttf");
+
+/// Monaspace has weird ligature behaviors we want to test in our shapers
+/// so we embed it here.
+pub const monaspace_neon = @embedFile("res/MonaspaceNeon-Regular.otf");

src/font/face/coretext.zig

@@ -798,7 +798,7 @@ test "emoji" {
 test "in-memory" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontRegular;
+    const testFont = font.embedded.regular;
 
     var atlas = try font.Atlas.init(alloc, 512, .grayscale);
     defer atlas.deinit(alloc);
@@ -820,7 +820,7 @@ test "in-memory" {
 test "variable" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontVariable;
+    const testFont = font.embedded.variable;
 
     var atlas = try font.Atlas.init(alloc, 512, .grayscale);
     defer atlas.deinit(alloc);
@@ -842,7 +842,7 @@ test "variable" {
 test "variable set variation" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontVariable;
+    const testFont = font.embedded.variable;
 
     var atlas = try font.Atlas.init(alloc, 512, .grayscale);
     defer atlas.deinit(alloc);
@@ -868,7 +868,7 @@ test "variable set variation" {
 test "svg font table" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontJuliaMono;
+    const testFont = font.embedded.julia_mono;
 
     var lib = try font.Library.init();
     defer lib.deinit();
@@ -884,7 +884,7 @@ test "svg font table" {
 
 test "glyphIndex colored vs text" {
     const testing = std.testing;
-    const testFont = @import("../test.zig").fontJuliaMono;
+    const testFont = font.embedded.julia_mono;
 
     var lib = try font.Library.init();
     defer lib.deinit();

src/font/face/freetype.zig

@@ -742,7 +742,7 @@ pub const Face = struct {
 };
 
 test {
-    const testFont = @import("../test.zig").fontRegular;
+    const testFont = font.embedded.regular;
     const alloc = testing.allocator;
 
     var lib = try Library.init();
@@ -777,7 +777,7 @@ test {
 
 test "color emoji" {
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontEmoji;
+    const testFont = font.embedded.emoji;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -819,7 +819,7 @@ test "color emoji" {
 }
 
 test "metrics" {
-    const testFont = @import("../test.zig").fontRegular;
+    const testFont = font.embedded.regular;
     const alloc = testing.allocator;
 
     var lib = try Library.init();
@@ -860,7 +860,7 @@ test "metrics" {
 
 test "mono to rgba" {
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontEmoji;
+    const testFont = font.embedded.emoji;
 
     var lib = try Library.init();
     defer lib.deinit();
@@ -877,7 +877,7 @@ test "mono to rgba" {
 
 test "svg font table" {
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontJuliaMono;
+    const testFont = font.embedded.julia_mono;
 
     var lib = try font.Library.init();
     defer lib.deinit();

src/font/main.zig

@@ -6,6 +6,7 @@ const library = @import("library.zig");
 
 pub const Atlas = @import("Atlas.zig");
 pub const discovery = @import("discovery.zig");
+pub const embedded = @import("embedded.zig");
 pub const face = @import("face.zig");
 pub const CodepointMap = @import("CodepointMap.zig");
 pub const CodepointResolver = @import("CodepointResolver.zig");

src/font/opentype/svg.zig

@@ -95,7 +95,7 @@ pub const SVG = struct {
 test "SVG" {
     const testing = std.testing;
     const alloc = testing.allocator;
-    const testFont = @import("../test.zig").fontJuliaMono;
+    const testFont = font.embedded.julia_mono;
 
     var lib = try font.Library.init();
     defer lib.deinit();

src/font/shaper/coretext.zig

@@ -1732,15 +1732,15 @@ fn testShaper(alloc: Allocator) !TestShaper {
 }
 
 fn testShaperWithFont(alloc: Allocator, font_req: TestFont) !TestShaper {
-    const testEmoji = @import("../test.zig").fontEmoji;
-    const testEmojiText = @import("../test.zig").fontEmojiText;
+    const testEmoji = font.embedded.emoji;
+    const testEmojiText = font.embedded.emoji_text;
     const testFont = switch (font_req) {
-        .code_new_roman => @import("../test.zig").fontCodeNewRoman,
-        .inconsolata => @import("../test.zig").fontRegular,
-        .geist_mono => @import("../test.zig").fontGeistMono,
-        .jetbrains_mono => @import("../test.zig").fontJetBrainsMono,
-        .monaspace_neon => @import("../test.zig").fontMonaspaceNeon,
-        .nerd_font => @import("../test.zig").fontNerdFont,
+        .code_new_roman => font.embedded.code_new_roman,
+        .inconsolata => font.embedded.inconsolata,
+        .geist_mono => font.embedded.geist_mono,
+        .jetbrains_mono => font.embedded.jetbrains_mono,
+        .monaspace_neon => font.embedded.monaspace_neon,
+        .nerd_font => font.embedded.nerd_font,
     };
 
     var lib = try Library.init();

src/font/shaper/harfbuzz.zig

@@ -1197,11 +1197,11 @@ fn testShaper(alloc: Allocator) !TestShaper {
 }
 
 fn testShaperWithFont(alloc: Allocator, font_req: TestFont) !TestShaper {
-    const testEmoji = @import("../test.zig").fontEmoji;
-    const testEmojiText = @import("../test.zig").fontEmojiText;
+    const testEmoji = font.embedded.fontEmoji;
+    const testEmojiText = font.embedded.fontEmojiText;
     const testFont = switch (font_req) {
-        .inconsolata => @import("../test.zig").fontRegular,
-        .monaspace_neon => @import("../test.zig").fontMonaspaceNeon,
+        .inconsolata => font.embedded.fontRegular,
+        .monaspace_neon => font.embedded.fontMonaspaceNeon,
     };
 
     var lib = try Library.init();