DrawManager: High quality normals for non meshes

This adds high quality normals for non meshes. These include

* Volumetric Object Wireframe
* Metaballs
* Extracted Curves
* Curves in edit mode

This is in preparation to fix a regression in recent AMD
drivers where the `GL_INT_2_10_10_10_REV` data type isn't
working in Polaris cards.

1 files changed, 6 insertions, 3 deletions

diff --git a/source/blender/draw/intern/draw_cache_impl.h b/source/blender/draw/intern/draw_cache_impl.h
index 438acdca171..46b6cc7d708 100644
--- a/source/blender/draw/intern/draw_cache_impl.h
+++ b/source/blender/draw/intern/draw_cache_impl.h
@@ -87,7 +87,7 @@ void DRW_mesh_batch_cache_free_old(struct Mesh *me, int ctime);
 void DRW_vertbuf_create_wiredata(struct GPUVertBuf *vbo, const int vert_len);
 
 /* Curve */
-void DRW_curve_batch_cache_create_requested(struct Object *ob);
+void DRW_curve_batch_cache_create_requested(struct Object *ob, const struct Scene *scene);
 
 int DRW_curve_material_count_get(struct Curve *cu);
 
@@ -116,12 +116,15 @@ struct GPUBatch *DRW_metaball_batch_cache_get_edge_detection(struct Object *ob,
                                                              bool *r_is_manifold);
 
 /* DispList */
-void DRW_displist_vertbuf_create_pos_and_nor(struct ListBase *lb, struct GPUVertBuf *vbo);
+void DRW_displist_vertbuf_create_pos_and_nor(struct ListBase *lb,
+                                             struct GPUVertBuf *vbo,
+                                             const struct Scene *scene);
 void DRW_displist_vertbuf_create_wiredata(struct ListBase *lb, struct GPUVertBuf *vbo);
 void DRW_displist_vertbuf_create_loop_pos_and_nor_and_uv_and_tan(struct ListBase *lb,
                                                                  struct GPUVertBuf *vbo_pos_nor,
                                                                  struct GPUVertBuf *vbo_uv,
-                                                                 struct GPUVertBuf *vbo_tan);
+                                                                 struct GPUVertBuf *vbo_tan,
+                                                                 const struct Scene *scene);
 void DRW_displist_indexbuf_create_lines_in_order(struct ListBase *lb, struct GPUIndexBuf *ibo);
 void DRW_displist_indexbuf_create_triangles_in_order(struct ListBase *lb, struct GPUIndexBuf *ibo);
 void DRW_displist_indexbuf_create_triangles_loop_split_by_material(struct ListBase *lb,