1 files changed, 115 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/mesh_debug.cc b/source/blender/blenkernel/intern/mesh_debug.cc
new file mode 100644
index 00000000000..017f96c2ece
--- /dev/null
+++ b/source/blender/blenkernel/intern/mesh_debug.cc
@@ -0,0 +1,115 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup bke
+ *
+ * Evaluated mesh info printing function, to help track down differences output.
+ *
+ * Output from these functions can be evaluated as Python literals.
+ * See `bmesh_debug.c` for the equivalent #BMesh functionality.
+ */
+
+#ifndef NDEBUG
+
+#  include <stdio.h>
+
+#  include "MEM_guardedalloc.h"
+
+#  include "DNA_mesh_types.h"
+#  include "DNA_meshdata_types.h"
+#  include "DNA_object_types.h"
+
+#  include "BLI_utildefines.h"
+
+#  include "BKE_customdata.h"
+
+#  include "BKE_mesh.h"
+
+#  include "BLI_dynstr.h"
+
+static void mesh_debug_info_from_cd_flag(const Mesh *me, DynStr *dynstr)
+{
+  BLI_dynstr_append(dynstr, "'cd_flag': {");
+  if (me->cd_flag & ME_CDFLAG_VERT_BWEIGHT) {
+    BLI_dynstr_append(dynstr, "'VERT_BWEIGHT', ");
+  }
+  if (me->cd_flag & ME_CDFLAG_EDGE_BWEIGHT) {
+    BLI_dynstr_append(dynstr, "'EDGE_BWEIGHT', ");
+  }
+  if (me->cd_flag & ME_CDFLAG_EDGE_CREASE) {
+    BLI_dynstr_append(dynstr, "'EDGE_CREASE', ");
+  }
+  BLI_dynstr_append(dynstr, "},\n");
+}
+
+char *BKE_mesh_debug_info(const Mesh *me)
+{
+  DynStr *dynstr = BLI_dynstr_new();
+  char *ret;
+
+  const char *indent4 = "    ";
+  const char *indent8 = "        ";
+
+  BLI_dynstr_append(dynstr, "{\n");
+  BLI_dynstr_appendf(dynstr, "    'ptr': '%p',\n", (void *)me);
+  BLI_dynstr_appendf(dynstr, "    'totvert': %d,\n", me->totvert);
+  BLI_dynstr_appendf(dynstr, "    'totedge': %d,\n", me->totedge);
+  BLI_dynstr_appendf(dynstr, "    'totface': %d,\n", me->totface);
+  BLI_dynstr_appendf(dynstr, "    'totpoly': %d,\n", me->totpoly);
+
+  BLI_dynstr_appendf(dynstr, "    'runtime.deformed_only': %d,\n", me->runtime.deformed_only);
+  BLI_dynstr_appendf(dynstr, "    'runtime.is_original': %d,\n", me->runtime.is_original);
+
+  BLI_dynstr_append(dynstr, "    'vert_layers': (\n");
+  CustomData_debug_info_from_layers(&me->vdata, indent8, dynstr);
+  BLI_dynstr_append(dynstr, "    ),\n");
+
+  BLI_dynstr_append(dynstr, "    'edge_layers': (\n");
+  CustomData_debug_info_from_layers(&me->edata, indent8, dynstr);
+  BLI_dynstr_append(dynstr, "    ),\n");
+
+  BLI_dynstr_append(dynstr, "    'loop_layers': (\n");
+  CustomData_debug_info_from_layers(&me->ldata, indent8, dynstr);
+  BLI_dynstr_append(dynstr, "    ),\n");
+
+  BLI_dynstr_append(dynstr, "    'poly_layers': (\n");
+  CustomData_debug_info_from_layers(&me->pdata, indent8, dynstr);
+  BLI_dynstr_append(dynstr, "    ),\n");
+
+  BLI_dynstr_append(dynstr, "    'tessface_layers': (\n");
+  CustomData_debug_info_from_layers(&me->fdata, indent8, dynstr);
+  BLI_dynstr_append(dynstr, "    ),\n");
+
+  BLI_dynstr_append(dynstr, indent4);
+  mesh_debug_info_from_cd_flag(me, dynstr);
+
+  BLI_dynstr_append(dynstr, "}\n");
+
+  ret = BLI_dynstr_get_cstring(dynstr);
+  BLI_dynstr_free(dynstr);
+  return ret;
+}
+
+void BKE_mesh_debug_print(const Mesh *me)
+{
+  char *str = BKE_mesh_debug_info(me);
+  puts(str);
+  fflush(stdout);
+  MEM_freeN(str);
+}
+
+#endif /* NDEBUG */