Extract pad stroke copy region helper

src/canvas.cpp

@@ -1080,13 +1080,9 @@ void Canvas::stroke_draw()
                     face_index));
         },
         [&](const pp::paint_renderer::CanvasStrokeCopyRegion& copy_region) {
-            copy_framebuffer_to_texture_2d(
-                copy_region.x,
-                copy_region.y,
-                copy_region.x,
-                copy_region.y,
-                copy_region.width,
-                copy_region.height);
+            pp::panopainter::execute_legacy_canvas_stroke_pad_copy_region(
+                copy_region,
+                copy_framebuffer_to_texture_2d);
         },
         [&](int face_index) {
             pp::panopainter::unbind_legacy_canvas_stroke_texture_inputs(

src/legacy_canvas_stroke_execution_services.h

@@ -311,6 +311,19 @@ struct LegacyCanvasStrokePadExecutionResult {
 [[nodiscard]] inline LegacyCanvasStrokePadExecutionResult execute_legacy_canvas_stroke_pad_faces(
     const LegacyCanvasStrokePadExecutionRequest& request);
 
+inline void execute_legacy_canvas_stroke_pad_copy_region(
+    const pp::paint_renderer::CanvasStrokeCopyRegion& copy_region,
+    const std::function<void(int, int, int, int, int, int)>& copy_framebuffer_to_texture_2d)
+{
+    copy_framebuffer_to_texture_2d(
+        copy_region.x,
+        copy_region.y,
+        copy_region.x,
+        copy_region.y,
+        copy_region.width,
+        copy_region.height);
+}
+
 struct LegacyCanvasStrokeMixPassPlane {
     int index = 0;
     bool visible = true;