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, 0 insertions, 8 deletions

diff --git a/source/blender/windowmanager/intern/wm_draw.c b/source/blender/windowmanager/intern/wm_draw.c
index e0c4ab8eaf3..0922aaaee53 100644
--- a/source/blender/windowmanager/intern/wm_draw.c
+++ b/source/blender/windowmanager/intern/wm_draw.c
@@ -218,13 +218,6 @@ static bool wm_draw_region_stereo_set(Main *bmain,
   return false;
 }
 
-static void wm_area_mark_invalid_backbuf(ScrArea *area)
-{
-  if (area->spacetype == SPACE_VIEW3D) {
-    ((View3D *)area->spacedata.first)->flag |= V3D_INVALID_BACKBUF;
-  }
-}
-
 static void wm_region_test_gizmo_do_draw(bContext *C,
                                          ScrArea *area,
                                          ARegion *region,
@@ -739,7 +732,6 @@ static void wm_draw_window_offscreen(bContext *C, wmWindow *win, bool stereo)
       }
     }
 
-    wm_area_mark_invalid_backbuf(area);
     CTX_wm_area_set(C, NULL);
 
     GPU_debug_group_end();