refactor: example font rendering

Author: RossComputerGuy

build.zig.zon

@@ -4,20 +4,24 @@
     .paths = .{"."},
     .dependencies = .{
         .@"phantom.display.uefi" = .{
-            .url = "https://github.com/PhantomUIx/display-uefi/archive/723a5f8b4c751a488eeaae781e67ec60cdef0525.tar.gz",
-            .hash = "1220c5b8911538cc2aa1009f1f6dccd54ae5dc11bc0f5ee6c84c07fa7ddfaa02fa3f",
-        },
-        .@"phantom.compat.zigimg" = .{
-            .url = "https://github.com/PhantomUIx/compat-zigimg/archive/6f81da19d29aa88f73d5ac27d7a4d4540e5b67a7.tar.gz",
-            .hash = "1220a71bc11122abbd2c27ced9ca77a496c2b426c78b7be0838fd2bf95f9c2a4a632",
+            .url = "https://github.com/PhantomUIx/display-uefi/archive/a97eb8f55adca2883b9b0619b76ddb3f30da0fbd.tar.gz",
+            .hash = "1220a18ff3a2fee1b60d0eef7070e1a93532a059c82bfcb2655a6cc7570172056ed5",
         },
         .phantom = .{
-            .url = "https://github.com/PhantomUIx/core/archive/13cb70007519475065743509e3a908c7105ded1d.tar.gz",
-            .hash = "12203b3735b8056b34491d5aa777ca5689d1031b1be03690f2cb5b18f6bacd42424f",
+            .url = "https://github.com/PhantomUIx/core/archive/db46e7bfc2d3158f8b2c3bff1338ee5eafe08aba.tar.gz",
+            .hash = "122034f36829dc85e51afdc6450259c3b3659b4d934d08096f213aaf0e528c654dfa",
         },
         .vizops = .{
             .url = "https://github.com/MidstallSoftware/vizops/archive/626d6bbf78fe7d192d0dea77abb7d99d272f7039.tar.gz",
             .hash = "1220f1f74b130449d782e38792cbe5d6b519ff706dd4f260f8cb0ced10a1f03f8eab",
         },
+        .@"phantom.display.fbdev" = .{
+            .url = "https://github.com/PhantomUIx/display-fbdev/archive/d91033076cf37346bd6e66ad0a6d7aa385a263af.tar.gz",
+            .hash = "122034cb13e03603cc7e8ece3234c1b3361504a2624cf5d18fa374e8b95f48cc9e22",
+        },
+        .@"phantom.font.bdf" = .{
+            .url = "https://github.com/PhantomUIx/font-bdf/archive/b08385f3379158f30cb02f66296b15353c6e902e.tar.gz",
+            .hash = "1220102f5282de7ff2215cd4f37dbfb32fe9e04c73d3297a1f1fd87736c9a4a9cdb3",
+        },
     },
 }

src/compositor.zig

@@ -47,47 +47,59 @@ pub fn main() void {
     }
 
     const output = outputs.items[0];
+    const outputInfo = output.info() catch |e| @panic(@errorName(e));
     const surface = output.createSurface(.output, .{
-        .size = (output.info() catch |e| @panic(@errorName(e))).size.res,
+        .size = outputInfo.size.res,
     }) catch |e| @panic(@errorName(e));
     defer {
         surface.destroy() catch {};
         surface.deinit();
     }
 
+    const fontFormat = phantom.fonts.backends.bdf.create(alloc) catch |e| @panic(@errorName(e));
+    defer fontFormat.deinit();
+
+    const font = fontFormat.loadBuffer(@embedFile("example.bdf"), .{
+        .colorspace = .sRGB,
+        .colorFormat = .{ .rgba = @splat(8) },
+        .foregroundColor = .{
+            .uint8 = .{
+                .sRGB = .{
+                    .value = @splat(0),
+                },
+            },
+        },
+        .backgroundColor = .{
+            .uint8 = .{
+                .sRGB = .{
+                    .value = @splat(255),
+                },
+            },
+        },
+    }) catch |e| @panic(@errorName(e));
+    defer font.deinit();
+
+    const utfView = std.unicode.Utf8View.initComptime("Hello, world!");
+    var iter = utfView.iterator();
+
+    var nodes = std.ArrayList(*phantom.scene.Node).init(alloc);
+
     const scene = surface.createScene(@enumFromInt(@intFromEnum(sceneBackendType))) catch |e| @panic(@errorName(e));
 
-    const format = phantom.painting.image.formats.zigimg.create(alloc) catch |e| @panic(@errorName(e));
-    defer format.deinit();
+    while (iter.nextCodepoint()) |codepoint| {
+        const glyph = font.lookupGlyph(codepoint) catch |e| @panic(@errorName(e));
 
-    const image = format.readBuffer(@embedFile("example.gif")) catch |e| @panic(@errorName(e));
-    defer image.deinit();
+        nodes.append(scene.createNode(.NodeFrameBuffer, .{
+            .source = glyph.fb,
+        }) catch |e| @panic(@errorName(e))) catch |e| @panic(@errorName(e));
+    }
 
-    const fb = scene.createNode(.NodeFrameBuffer, .{
-        .source = image.buffer(0) catch |e| @panic(@errorName(e)),
+    const flex = scene.createNode(.NodeFlex, .{
+        .direction = .horizontal,
+        .children = nodes.items,
     }) catch |e| @panic(@errorName(e));
 
-    const stderr = if (builtin.os.tag == .uefi) SimpleTextOutputWriter{
-        .context = std.os.uefi.system_table.std_err.?,
-    } else std.io.getStdErr().writer();
-
-    var prevTime = std.time.milliTimestamp();
     while (true) {
-        const currTime = std.time.milliTimestamp();
-        const deltaTime = currTime - prevTime;
-        _ = stderr.print("FPS: {} (Delta time: {}, Prev: {}, Curr: {})\n", .{
-            60 / @max(deltaTime, 1),
-            deltaTime,
-            prevTime,
-            currTime,
-        }) catch {};
-
-        _ = scene.frame(fb) catch |e| @panic(@errorName(e));
-
-        fb.setProperties(.{
-            .source = image.buffer(scene.seq % image.info().seqCount) catch |e| @panic(@errorName(e)),
-        }) catch |e| @panic(@errorName(e));
-
-        prevTime = currTime;
+        _ = scene.frame(flex) catch |e| @panic(@errorName(e));
     }
 }