1 files changed, 78 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_lattice.c b/source/blender/draw/engines/overlay/overlay_lattice.c
new file mode 100644
index 00000000000..4e4081ee499
--- /dev/null
+++ b/source/blender/draw/engines/overlay/overlay_lattice.c
@@ -0,0 +1,78 @@
+/*
+ * 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.
+ *
+ * Copyright 2019, Blender Foundation.
+ */
+
+/** \file
+ * \ingroup draw_engine
+ */
+
+#include "DRW_render.h"
+
+#include "overlay_private.h"
+
+void OVERLAY_edit_lattice_cache_init(OVERLAY_Data *vedata)
+{
+  OVERLAY_PassList *psl = vedata->psl;
+  OVERLAY_PrivateData *pd = vedata->stl->pd;
+  struct GPUShader *sh;
+  DRWShadingGroup *grp;
+
+  {
+    DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL;
+    DRW_PASS_CREATE(psl->edit_lattice_ps, state | pd->clipping_state);
+
+    sh = OVERLAY_shader_edit_lattice_wire();
+    pd->edit_lattice_wires_grp = grp = DRW_shgroup_create(sh, psl->edit_lattice_ps);
+    DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
+    DRW_shgroup_uniform_texture(grp, "weightTex", G_draw.weight_ramp);
+
+    sh = OVERLAY_shader_edit_lattice_point();
+    pd->edit_lattice_points_grp = grp = DRW_shgroup_create(sh, psl->edit_lattice_ps);
+    DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
+  }
+}
+
+void OVERLAY_edit_lattice_cache_populate(OVERLAY_Data *vedata, Object *ob)
+{
+  OVERLAY_PrivateData *pd = vedata->stl->pd;
+  struct GPUBatch *geom;
+
+  geom = DRW_cache_lattice_wire_get(ob, true);
+  DRW_shgroup_call(pd->edit_lattice_wires_grp, geom, ob);
+
+  geom = DRW_cache_lattice_vert_overlay_get(ob);
+  DRW_shgroup_call(pd->edit_lattice_points_grp, geom, ob);
+}
+
+void OVERLAY_lattice_cache_populate(OVERLAY_Data *vedata, Object *ob)
+{
+  OVERLAY_ExtraCallBuffers *cb = OVERLAY_extra_call_buffer_get(vedata, ob);
+  const DRWContextState *draw_ctx = DRW_context_state_get();
+
+  float *color;
+  DRW_object_wire_theme_get(ob, draw_ctx->view_layer, &color);
+
+  struct GPUBatch *geom = DRW_cache_lattice_wire_get(ob, false);
+  OVERLAY_extra_wire(cb, geom, ob->obmat, color);
+}
+
+void OVERLAY_edit_lattice_draw(OVERLAY_Data *vedata)
+{
+  OVERLAY_PassList *psl = vedata->psl;
+
+  DRW_draw_pass(psl->edit_lattice_ps);
+}