Cleanup/Refactor: Unify functions that redraw the depth buffer

Now `ED_view3d_backbuf_depth_validate`, `ED_view3d_draw_depth` and
`ED_view3d_draw_depth_gpencil` are unified in `ED_view3d_depth_override`.

This new function replaces `ED_view3d_autodist_init`.

Also, since `ED_view3d_depth_update` depends on the render context, and
changing the context is a slow operation, that function also was removed,
and the depth buffer cached is now updated inside the new unified drawing
function when the "bool update_cache" parameter is true.

Finally `V3D_INVALID_BACKBUF` flag has been renamed and moved to
`runtime.flag`.

Differential revision: https://developer.blender.org/D10678

1 files changed, 7 insertions, 9 deletions

diff --git a/source/blender/editors/physics/particle_edit.c b/source/blender/editors/physics/particle_edit.c
index 0ec8238f741..de4ad913d6d 100644
--- a/source/blender/editors/physics/particle_edit.c
+++ b/source/blender/editors/physics/particle_edit.c
@@ -524,15 +524,13 @@ static void PE_set_view3d_data(bContext *C, PEData *data)
   ED_view3d_viewcontext_init(C, &data->vc, data->depsgraph);
 
   if (!XRAY_ENABLED(data->vc.v3d)) {
-    if (data->vc.v3d->flag & V3D_INVALID_BACKBUF) {
-      /* needed or else the draw matrix can be incorrect */
-      view3d_operator_needs_opengl(C);
-
-      ED_view3d_backbuf_depth_validate(&data->vc);
-      /* we may need to force an update here by setting the rv3d as dirty
-       * for now it seems ok, but take care!:
-       * rv3d->depths->dirty = 1; */
-      ED_view3d_depth_update(data->vc.region);
+    if (!(data->vc.v3d->runtime.flag & V3D_RUNTIME_DEPTHBUF_OVERRIDDEN)) {
+      ED_view3d_depth_override(data->depsgraph,
+                               data->vc.region,
+                               data->vc.v3d,
+                               data->vc.obact,
+                               V3D_DEPTH_OBJECT_ONLY,
+                               true);
     }
   }
 }