1 files changed, 68 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_lattice.cc b/source/blender/draw/engines/overlay/overlay_lattice.cc
new file mode 100644
index 00000000000..72c3335d871
--- /dev/null
+++ b/source/blender/draw/engines/overlay/overlay_lattice.cc
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2019 Blender Foundation. */
+
+/** \file
+ * \ingroup draw_engine
+ */
+
+#include "DRW_render.h"
+
+#include "overlay_private.hh"
+
+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->object_to_world, color);
+}
+
+void OVERLAY_edit_lattice_draw(OVERLAY_Data *vedata)
+{
+  OVERLAY_PassList *psl = vedata->psl;
+  OVERLAY_FramebufferList *fbl = vedata->fbl;
+
+  if (DRW_state_is_fbo()) {
+    GPU_framebuffer_bind(fbl->overlay_default_fb);
+  }
+
+  DRW_draw_pass(psl->edit_lattice_ps);
+}