Extract pad stroke face orchestration

src/legacy_canvas_stroke_execution_services.h

@@ -248,6 +248,9 @@ struct LegacyCanvasStrokePadExecutionResult {
     std::size_t padded_faces = 0;
 };
 
+[[nodiscard]] inline LegacyCanvasStrokePadExecutionResult execute_legacy_canvas_stroke_pad_faces(
+    const LegacyCanvasStrokePadExecutionRequest& request);
+
 struct LegacyCanvasStrokeMixPassPlane {
     int index = 0;
     bool visible = true;
@@ -368,6 +371,35 @@ std::size_t execute_legacy_canvas_stroke_main_pass_frame_callbacks(
         pass_dirty_faces);
 }
 
+template <typename Faces, typename UploadPadVertices, typename BeginFace, typename BindDestinationTexture, typename CopyFramebufferToDestinationTexture, typename UnbindDestinationTexture, typename DrawPad, typename FinishFace>
+std::size_t execute_legacy_canvas_stroke_pad_face_callbacks(
+    Faces&& faces,
+    pp::renderer::Extent2D extent,
+    bool copy_stroke_destination,
+    UploadPadVertices&& upload_pad_vertices,
+    BeginFace&& begin_face,
+    BindDestinationTexture&& bind_destination_texture,
+    CopyFramebufferToDestinationTexture&& copy_framebuffer_to_destination_texture,
+    UnbindDestinationTexture&& unbind_destination_texture,
+    DrawPad&& draw_pad,
+    FinishFace&& finish_face)
+{
+    return execute_legacy_canvas_stroke_pad_faces(
+        LegacyCanvasStrokePadExecutionRequest {
+            .context = "Canvas::stroke_draw",
+            .extent = extent,
+            .faces = std::forward<Faces>(faces),
+            .copy_stroke_destination = copy_stroke_destination,
+            .upload_pad_vertices = std::forward<UploadPadVertices>(upload_pad_vertices),
+            .begin_face = std::forward<BeginFace>(begin_face),
+            .bind_destination_texture = std::forward<BindDestinationTexture>(bind_destination_texture),
+            .copy_framebuffer_to_destination_texture = std::forward<CopyFramebufferToDestinationTexture>(copy_framebuffer_to_destination_texture),
+            .unbind_destination_texture = std::forward<UnbindDestinationTexture>(unbind_destination_texture),
+            .draw_pad = std::forward<DrawPad>(draw_pad),
+            .finish_face = std::forward<FinishFace>(finish_face),
+        }).padded_faces;
+}
+
 [[nodiscard]] inline LegacyCanvasStrokeDualPassResult execute_legacy_canvas_stroke_dual_pass(
     const LegacyCanvasStrokeDualPassRequest& request)
 {