all: initial import

Signed-off-by: Elias Naur <mail@eliasnaur.com>

ui/internal/path/path.go

@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: Unlicense OR MIT
+
+package path
+
+import (
+	"unsafe"
+
+	"gioui.org/ui/f32"
+)
+
+type Path struct {
+	Vertices []Vertex
+	Bounds   f32.Rectangle
+}
+
+// The vertex data suitable for passing to vertex programs.
+type Vertex struct {
+	CornerX, CornerY int16
+	MaxY             float32
+	FromX, FromY     float32
+	CtrlX, CtrlY     float32
+	ToX, ToY         float32
+}
+
+const VertStride = 7*4 + 2*2
+
+func init() {
+	// Check that struct vertex has the expected size and
+	// that it contains no padding.
+	if unsafe.Sizeof(*(*Vertex)(nil)) != VertStride {
+		panic("unexpected struct size")
+	}
+}