Refactor: move Paint .blend I/O to blenkernel

Ref T76372.

1 files changed, 34 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/paint.c b/source/blender/blenkernel/intern/paint.c
index f2af5520d16..3e8bdbf0481 100644
--- a/source/blender/blenkernel/intern/paint.c
+++ b/source/blender/blenkernel/intern/paint.c
@@ -1176,6 +1176,40 @@ void BKE_paint_stroke_get_average(Scene *scene, Object *ob, float stroke[3])
   }
 }
 
+void BKE_paint_blend_write(BlendWriter *writer, Paint *p)
+{
+  if (p->cavity_curve) {
+    BKE_curvemapping_blend_write(writer, p->cavity_curve);
+  }
+  BLO_write_struct_array(writer, PaintToolSlot, p->tool_slots_len, p->tool_slots);
+}
+
+void BKE_paint_blend_read_data(BlendDataReader *reader, const Scene *scene, Paint *p)
+{
+  if (p->num_input_samples < 1) {
+    p->num_input_samples = 1;
+  }
+
+  BLO_read_data_address(reader, &p->cavity_curve);
+  if (p->cavity_curve) {
+    BKE_curvemapping_blend_read(reader, p->cavity_curve);
+  }
+  else {
+    BKE_paint_cavity_curve_preset(p, CURVE_PRESET_LINE);
+  }
+
+  BLO_read_data_address(reader, &p->tool_slots);
+
+  /* Workaround for invalid data written in older versions. */
+  const size_t expected_size = sizeof(PaintToolSlot) * p->tool_slots_len;
+  if (p->tool_slots && MEM_allocN_len(p->tool_slots) < expected_size) {
+    MEM_freeN(p->tool_slots);
+    p->tool_slots = MEM_callocN(expected_size, "PaintToolSlot");
+  }
+
+  BKE_paint_runtime_init(scene->toolsettings, p);
+}
+
 /* returns non-zero if any of the face's vertices
  * are hidden, zero otherwise */
 bool paint_is_face_hidden(const MLoopTri *lt, const MVert *mvert, const MLoop *mloop)