From 3c3405d796e7548ce0bf8b5fef126337d3dbf6bc Mon Sep 17 00:00:00 2001
From: omigamedev <omarator@gmail.com>
Date: Sat, 13 Jun 2026 23:45:46 +0200
Subject: [PATCH] Extract stroke draw samples destination dispatch

---
 src/canvas.cpp | 28 ++++++++++++++++------------
 src/canvas.h   |  2 ++
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/src/canvas.cpp b/src/canvas.cpp
index d1e3090..ff772a8 100644
--- a/src/canvas.cpp
+++ b/src/canvas.cpp
@@ -747,28 +747,32 @@ glm::vec4 Canvas::stroke_draw_samples(
             .slot = 1,
         },
     };
-    const auto destination_texture_dispatch =
-        pp::panopainter::make_legacy_canvas_stroke_destination_texture_dispatch(
-            [&](int texture_slot) {
-                set_active_texture_unit(texture_slot);
-            },
-            [&] {
-                m_tex[i].bind(); // bg, copy of framebuffer (copied before drawing)
-            },
-            [&] {
-                m_tex[i].unbind();
-            });
     const auto result = pp::panopainter::execute_legacy_canvas_stroke_face_sample_polygon(
         make_stroke_draw_samples_request(
             i,
             P,
             copy_stroke_destination),
         destination_texture_binding,
-        destination_texture_dispatch);
+        make_stroke_draw_samples_destination_texture_dispatch(i));
 
     return result.dirty_bounds;
 }
 
+pp::panopainter::LegacyCanvasStrokeTextureInputDispatch Canvas::make_stroke_draw_samples_destination_texture_dispatch(
+    int face_index)
+{
+    return pp::panopainter::make_legacy_canvas_stroke_destination_texture_dispatch(
+        [&](int texture_slot) {
+            set_active_texture_unit(texture_slot);
+        },
+        [&, face_index] {
+            m_tex[face_index].bind(); // bg, copy of framebuffer (copied before drawing)
+        },
+        [&, face_index] {
+            m_tex[face_index].unbind();
+        });
+}
+
 pp::panopainter::LegacyStrokeFaceSamplePolygonExecutionRequest Canvas::make_stroke_draw_samples_request(
     int face_index,
     std::vector<vertex_t>& polygon_vertices,
diff --git a/src/canvas.h b/src/canvas.h
index b467ce4..498d722 100644
--- a/src/canvas.h
+++ b/src/canvas.h
@@ -283,6 +283,8 @@ private:
         int face_index,
         std::vector<vertex_t>& polygon_vertices,
         bool copy_stroke_destination) const;
+    pp::panopainter::LegacyCanvasStrokeTextureInputDispatch make_stroke_draw_samples_destination_texture_dispatch(
+        int face_index);
     void stroke_draw_dual_pass(
         const std::vector<StrokeFrame>& frames_dual,
         const std::array<pp::panopainter::LegacyCanvasStrokeTextureBinding, 1>& dual_pass_texture_bindings,