Refactor: Make stats_draw a base render method

Should be no functional changes.

source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp

@@ -280,7 +280,7 @@ static void prepare(Render *re, ViewLayer *view_layer, Depsgraph *depsgraph)
 {
   // load mesh
   re->i.infostr = TIP_("Freestyle: Mesh loading");
-  re->stats_draw_cb(re->sdh, &re->i);
+  re->stats_draw(&re->i);
   re->i.infostr = nullptr;
   if (controller->LoadMesh(re, view_layer, depsgraph)) {
     /* Returns if scene cannot be loaded or if empty. */
@@ -467,7 +467,7 @@ static void prepare(Render *re, ViewLayer *view_layer, Depsgraph *depsgraph)
 
   // compute view map
   re->i.infostr = TIP_("Freestyle: View map creation");
-  re->stats_draw_cb(re->sdh, &re->i);
+  re->stats_draw(&re->i);
   re->i.infostr = nullptr;
   controller->ComputeViewMap();
 }
@@ -641,7 +641,7 @@ void FRS_do_stroke_rendering(Render *re, ViewLayer *view_layer)
     if (controller->_ViewMap) {
       // render strokes
       re->i.infostr = TIP_("Freestyle: Stroke rendering");
-      re->stats_draw_cb(re->sdh, &re->i);
+      re->stats_draw(&re->i);
       re->i.infostr = nullptr;
       g_freestyle.scene = DEG_get_evaluated_scene(depsgraph);
       int strokeCount = controller->DrawStrokes();

source/blender/freestyle/intern/system/RenderMonitor.h

@@ -30,7 +30,7 @@ class RenderMonitor {
   {
     if (_re && !info.empty()) {
       _re->i.infostr = info.c_str();
-      _re->stats_draw_cb(_re->sdh, &_re->i);
+      _re->stats_draw(&_re->i);
       _re->i.infostr = nullptr;
     }
   }

source/blender/render/intern/engine.cc

@@ -477,7 +477,7 @@ void RE_engine_update_stats(RenderEngine *engine, const char *stats, const char
   if (re) {
     re->i.statstr = stats;
     re->i.infostr = info;
-    re->stats_draw_cb(re->sdh, &re->i);
+    re->stats_draw(&re->i);
     re->i.infostr = nullptr;
     re->i.statstr = nullptr;
   }

source/blender/render/intern/pipeline.cc

@@ -1200,7 +1200,7 @@ static void render_compositor_stats(void *arg, const char *str)
   RenderStats i;
   memcpy(&i, &re->i, sizeof(i));
   i.infostr = str;
-  re->stats_draw_cb(re->sdh, &i);
+  re->stats_draw(&i);
 }
 
 /* Render compositor nodes, along with any scenes required for them.
@@ -1464,7 +1464,7 @@ static void do_render_full_pipeline(Render *re)
       render_seq = true;
     }
 
-    re->stats_draw_cb(re->sdh, &re->i);
+    re->stats_draw(&re->i);
     re->display_update_cb(re->duh, re->result, nullptr);
   }
   else {
@@ -1473,7 +1473,7 @@ static void do_render_full_pipeline(Render *re)
 
   re->i.lastframetime = PIL_check_seconds_timer() - re->i.starttime;
 
-  re->stats_draw_cb(re->sdh, &re->i);
+  re->stats_draw(&re->i);
 
   /* save render result stamp if needed */
   if (re->result != nullptr) {

source/blender/render/intern/render_types.cc

@@ -41,6 +41,13 @@ Render::~Render()
   render_result_free(pushedresult);
 }
 
+void Render::stats_draw(RenderStats *render_stats)
+{
+  if (stats_draw_cb) {
+    stats_draw_cb(sdh, render_stats);
+  }
+}
+
 void Render::progress(float progress)
 {
   if (progress_cb) {

source/blender/render/intern/render_types.h

@@ -49,6 +49,7 @@ struct BaseRender {
                                   const char *view_name) = 0;
   virtual void compositor_free() = 0;
 
+  virtual void stats_draw(RenderStats *render_stats) = 0;
   virtual void progress(float progress) = 0;
 
   virtual void draw_lock() = 0;
@@ -96,6 +97,7 @@ struct ViewRender : public BaseRender {
   }
   void compositor_free() override {}
 
+  void stats_draw(RenderStats * /*render_stats*/) override {}
   void progress(const float /*progress*/) override {}
 
   void draw_lock() override {}
@@ -132,6 +134,7 @@ struct Render : public BaseRender {
                           const char *view_name) override;
   void compositor_free() override;
 
+  void stats_draw(RenderStats *render_stats) override;
   void progress(float progress) override;
 
   void draw_lock() override;