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/editors/sculpt_paint/paint_vertex.c b/source/blender/editors/sculpt_paint/paint_vertex.c
index d050a39ce68..5b9f1f600e6 100644
--- a/source/blender/editors/sculpt_paint/paint_vertex.c
+++ b/source/blender/editors/sculpt_paint/paint_vertex.c
@@ -2183,9 +2183,9 @@ static void calculate_average_weight(SculptThreadedTaskData *data,
   struct WPaintAverageAccum *accum = MEM_mallocN(sizeof(*accum) * totnode, __func__);
   data->custom_data = accum;
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, (data->sd->flags & SCULPT_USE_OPENMP), totnode);
-  BKE_pbvh_parallel_range(0, totnode, data, do_wpaint_brush_calc_average_weight_cb_ex, &settings);
+  BLI_task_parallel_range(0, totnode, data, do_wpaint_brush_calc_average_weight_cb_ex, &settings);
 
   uint accum_len = 0;
   double accum_weight = 0.0;
@@ -2231,22 +2231,22 @@ static void wpaint_paint_leaves(bContext *C,
   data.strength = BKE_brush_weight_get(scene, brush);
 
   /* NOTE: current mirroring code cannot be run in parallel */
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, !(me->editflag & ME_EDIT_MIRROR_X), totnode);
 
   switch ((eBrushWeightPaintTool)brush->weightpaint_tool) {
     case WPAINT_TOOL_AVERAGE:
       calculate_average_weight(&data, nodes, totnode);
-      BKE_pbvh_parallel_range(0, totnode, &data, do_wpaint_brush_draw_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_wpaint_brush_draw_task_cb_ex, &settings);
       break;
     case WPAINT_TOOL_SMEAR:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_wpaint_brush_smear_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_wpaint_brush_smear_task_cb_ex, &settings);
       break;
     case WPAINT_TOOL_BLUR:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_wpaint_brush_blur_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_wpaint_brush_blur_task_cb_ex, &settings);
       break;
     case WPAINT_TOOL_DRAW:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_wpaint_brush_draw_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_wpaint_brush_draw_task_cb_ex, &settings);
       break;
   }
 }
@@ -3252,9 +3252,9 @@ static void calculate_average_color(SculptThreadedTaskData *data,
   struct VPaintAverageAccum *accum = MEM_mallocN(sizeof(*accum) * totnode, __func__);
   data->custom_data = accum;
 
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
-  BKE_pbvh_parallel_range(0, totnode, data, do_vpaint_brush_calc_average_color_cb_ex, &settings);
+  BLI_task_parallel_range(0, totnode, data, do_vpaint_brush_calc_average_color_cb_ex, &settings);
 
   uint accum_len = 0;
   uint accum_value[3] = {0};
@@ -3298,21 +3298,21 @@ static void vpaint_paint_leaves(bContext *C,
       .lcol = (uint *)me->mloopcol,
       .me = me,
   };
-  PBVHParallelSettings settings;
+  TaskParallelSettings settings;
   BKE_pbvh_parallel_range_settings(&settings, true, totnode);
   switch ((eBrushVertexPaintTool)brush->vertexpaint_tool) {
     case VPAINT_TOOL_AVERAGE:
       calculate_average_color(&data, nodes, totnode);
-      BKE_pbvh_parallel_range(0, totnode, &data, do_vpaint_brush_draw_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_vpaint_brush_draw_task_cb_ex, &settings);
       break;
     case VPAINT_TOOL_BLUR:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_vpaint_brush_blur_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_vpaint_brush_blur_task_cb_ex, &settings);
       break;
     case VPAINT_TOOL_SMEAR:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_vpaint_brush_smear_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_vpaint_brush_smear_task_cb_ex, &settings);
       break;
     case VPAINT_TOOL_DRAW:
-      BKE_pbvh_parallel_range(0, totnode, &data, do_vpaint_brush_draw_task_cb_ex, &settings);
+      BLI_task_parallel_range(0, totnode, &data, do_vpaint_brush_draw_task_cb_ex, &settings);
       break;
   }
 }