Task: Use TBB as Task Scheduler

This patch enables TBB as the default task scheduler. TBB stands for Threading Building Blocks and is developed by Intel. The library contains several threading patters. This patch maps blenders BLI_task_* function to their counterpart. After this patch we can add more patterns. A promising one is TBB:graph that can be used for depsgraph, draw manager and compositor.

Performance changes depends on the actual hardware. It was tested on different hardwares from laptops to workstations and we didn't detected any downgrade of the performance.
* Linux Xeon E5-2699 v4 got FPS boost from 12 to 17 using Spring's 04_010_A.anim.blend.
* AMD Ryzen Threadripper 2990WX 32-Core Animation playback goes from 9.5-10.5 FPS to 13.0-14.0 FPS on Agent 327 , 10_03_B.anim.blend.

Reviewed By: brecht, sergey

Differential Revision: https://developer.blender.org/D7475

1 files changed, 14 insertions, 14 deletions

diff --git a/source/blender/blenkernel/intern/pbvh.c b/source/blender/blenkernel/intern/pbvh.c
index e6d672ad9d9..aa541b3d715 100644
--- a/source/blender/blenkernel/intern/pbvh.c
+++ b/source/blender/blenkernel/intern/pbvh.c
@@ -1115,11 +1115,11 @@ static void pbvh_faces_update_normals(PBVH *bvh, PBVHNode **nodes, int totnode)
       .vnors = vnors,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
 
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_normals_accum_task_cb, &settings);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_normals_store_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_normals_accum_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_normals_store_task_cb, &settings);
 
   MEM_freeN(vnors);
 }
@@ -1169,9 +1169,9 @@ static void pbvh_update_mask_redraw(PBVH *bvh, PBVHNode **nodes, int totnode, in
       .flag = flag,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_mask_redraw_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_mask_redraw_task_cb, &settings);
 }
 
 static void pbvh_update_visibility_redraw_task_cb(void *__restrict userdata,
@@ -1207,9 +1207,9 @@ static void pbvh_update_visibility_redraw(PBVH *bvh, PBVHNode **nodes, int totno
       .flag = flag,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_visibility_redraw_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_visibility_redraw_task_cb, &settings);
 }
 
 static void pbvh_update_BB_redraw_task_cb(void *__restrict userdata,
@@ -1245,9 +1245,9 @@ void pbvh_update_BB_redraw(PBVH *bvh, PBVHNode **nodes, int totnode, int flag)
       .flag = flag,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_BB_redraw_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_BB_redraw_task_cb, &settings);
 }
 
 static int pbvh_get_buffers_update_flags(PBVH *bvh, bool show_vcol)
@@ -1365,9 +1365,9 @@ static void pbvh_update_draw_buffers(
       .show_vcol = show_vcol,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_draw_buffer_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_draw_buffer_cb, &settings);
 }
 
 static int pbvh_flush_bb(PBVH *bvh, PBVHNode *node, int flag)
@@ -1558,9 +1558,9 @@ static void pbvh_update_visibility(PBVH *bvh, PBVHNode **nodes, int totnode)
       .nodes = nodes,
   };
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, &data, pbvh_update_visibility_task_cb, &settings);
+  BLI_task_parallel_range(0, totnode, &data, pbvh_update_visibility_task_cb, &settings);
 }
 
 void BKE_pbvh_update_visibility(PBVH *bvh)
@@ -2994,7 +2994,7 @@ void BKE_pbvh_get_frustum_planes(PBVH *bvh, PBVHFrustumPlanes *planes)
   }
 }
 
-void BKE_pbvh_parallel_range_settings(PBVHParallelSettings *settings,
+void BKE_pbvh_parallel_range_settings(TaskParallelSettings *settings,
                                       bool use_threading,
                                       int totnode)
 {