feat: finish ghostty pane backend integration

1 files changed, 50 insertions, 0 deletions

diff --git a/vendor/libghostty-vt/pkg/macos/graphics/bitmap_context.zig b/vendor/libghostty-vt/pkg/macos/graphics/bitmap_context.zig
new file mode 100644
index 00000000..7db5577f
--- /dev/null
+++ b/vendor/libghostty-vt/pkg/macos/graphics/bitmap_context.zig
@@ -0,0 +1,50 @@
+const std = @import("std");
+const assert = std.debug.assert;
+const Allocator = std.mem.Allocator;
+const graphics = @import("../graphics.zig");
+const Context = @import("context.zig").Context;
+const c = @import("c.zig").c;
+
+pub const BitmapContext = opaque {
+    pub const context = Context(BitmapContext);
+
+    pub fn create(
+        data: ?[]u8,
+        width: usize,
+        height: usize,
+        bits_per_component: usize,
+        bytes_per_row: usize,
+        space: *graphics.ColorSpace,
+        opts: c_uint,
+    ) Allocator.Error!*BitmapContext {
+        return @as(
+            ?*BitmapContext,
+            @ptrFromInt(@intFromPtr(c.CGBitmapContextCreate(
+                @ptrCast(if (data) |d| d.ptr else null),
+                width,
+                height,
+                bits_per_component,
+                bytes_per_row,
+                @ptrCast(space),
+                opts,
+            ))),
+        ) orelse Allocator.Error.OutOfMemory;
+    }
+};
+
+test {
+    //const testing = std.testing;
+
+    const cs = try graphics.ColorSpace.createDeviceGray();
+    defer cs.release();
+    const ctx = try BitmapContext.create(null, 80, 80, 8, 80, cs, 0);
+    const context = BitmapContext.context;
+    defer context.release(ctx);
+    context.setShouldAntialias(ctx, true);
+    context.setShouldSmoothFonts(ctx, false);
+    context.setGrayFillColor(ctx, 1, 1);
+    context.setGrayStrokeColor(ctx, 1, 1);
+    context.setTextDrawingMode(ctx, .fill);
+    context.setTextMatrix(ctx, graphics.AffineTransform.identity());
+    context.setTextPosition(ctx, 0, 0);
+}