1 files changed, 101 insertions, 0 deletions
diff --git a/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_fdots_edituv_data.cc b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_fdots_edituv_data.cc
new file mode 100644
index 00000000000..dc77f83b30b
--- /dev/null
+++ b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_fdots_edituv_data.cc
@@ -0,0 +1,101 @@
+/*
+ * 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.
+ *
+ * The Original Code is Copyright (C) 2021 by Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup draw
+ */
+
+#include "draw_cache_extract_mesh_private.h"
+#include "draw_cache_impl.h"
+
+namespace blender::draw {
+
+/* ---------------------------------------------------------------------- */
+/** \name Extract Face-dots  Edit UV flag
+ * \{ */
+
+typedef struct MeshExtract_EditUVFdotData_Data {
+  EditLoopData *vbo_data;
+  int cd_ofs;
+} MeshExtract_EditUVFdotData_Data;
+
+static void extract_fdots_edituv_data_init(const MeshRenderData *mr,
+                                           struct MeshBatchCache *UNUSED(cache),
+                                           void *buf,
+                                           void *tls_data)
+{
+  GPUVertBuf *vbo = static_cast<GPUVertBuf *>(buf);
+  static GPUVertFormat format = {0};
+  if (format.attr_len == 0) {
+    GPU_vertformat_attr_add(&format, "flag", GPU_COMP_U8, 4, GPU_FETCH_INT);
+  }
+
+  GPU_vertbuf_init_with_format(vbo, &format);
+  GPU_vertbuf_data_alloc(vbo, mr->poly_len);
+
+  MeshExtract_EditUVFdotData_Data *data = static_cast<MeshExtract_EditUVFdotData_Data *>(tls_data);
+  data->vbo_data = (EditLoopData *)GPU_vertbuf_get_data(vbo);
+  data->cd_ofs = CustomData_get_offset(&mr->bm->ldata, CD_MLOOPUV);
+}
+
+static void extract_fdots_edituv_data_iter_poly_bm(const MeshRenderData *mr,
+                                                   const BMFace *f,
+                                                   const int UNUSED(f_index),
+                                                   void *_data)
+{
+  MeshExtract_EditUVFdotData_Data *data = static_cast<MeshExtract_EditUVFdotData_Data *>(_data);
+  EditLoopData *eldata = &data->vbo_data[BM_elem_index_get(f)];
+  memset(eldata, 0x0, sizeof(*eldata));
+  mesh_render_data_face_flag(mr, f, data->cd_ofs, eldata);
+}
+
+static void extract_fdots_edituv_data_iter_poly_mesh(const MeshRenderData *mr,
+                                                     const MPoly *UNUSED(mp),
+                                                     const int mp_index,
+                                                     void *_data)
+{
+  MeshExtract_EditUVFdotData_Data *data = static_cast<MeshExtract_EditUVFdotData_Data *>(_data);
+  EditLoopData *eldata = &data->vbo_data[mp_index];
+  memset(eldata, 0x0, sizeof(*eldata));
+  BMFace *efa = bm_original_face_get(mr, mp_index);
+  if (efa) {
+    mesh_render_data_face_flag(mr, efa, data->cd_ofs, eldata);
+  }
+}
+
+constexpr MeshExtract create_extractor_fdots_edituv_data()
+{
+  MeshExtract extractor = {nullptr};
+  extractor.init = extract_fdots_edituv_data_init;
+  extractor.iter_poly_bm = extract_fdots_edituv_data_iter_poly_bm;
+  extractor.iter_poly_mesh = extract_fdots_edituv_data_iter_poly_mesh;
+  extractor.data_type = MR_DATA_NONE;
+  extractor.data_size = sizeof(MeshExtract_EditUVFdotData_Data);
+  extractor.use_threading = true;
+  extractor.mesh_buffer_offset = offsetof(MeshBufferCache, vbo.fdots_edituv_data);
+  return extractor;
+}
+
+/** \} */
+
+}  // namespace blender::draw
+
+extern "C" {
+const MeshExtract extract_fdots_edituv_data = blender::draw::create_extractor_fdots_edituv_data();
+}