xrRender, xrCDB: use reserve to optimize inserts into containers

src/Include/xrRender/ObjectSpaceRender.h

@@ -13,6 +13,7 @@ class IObjectSpaceRender
 
  virtual void dbgRender() = 0;
  virtual void dbgAddSphere(const Fsphere& sphere, u32 colour) = 0;
+ virtual void dbgReserveSphere(size_t count) = 0;
  virtual void SetShader() = 0;
 };
 #endif // DEBUG

src/Layers/xrRender/DetailManager.cpp

@@ -169,6 +169,7 @@ void CDetailManager::Load()
  dtFS->r_chunk_safe(0, &dtH, sizeof(dtH));
  R_ASSERT(dtH.version() == DETAIL_VERSION);
  u32 m_count = dtH.object_count();
+ objects.reserve(m_count);
 
  // Models
  IReader* m_fs = dtFS->open_chunk(1);

src/Layers/xrRender/ResourceManager_Loader.cpp

@@ -149,12 +149,10 @@ void CResourceManager::StoreNecessaryTextures()
  if (!m_necessary.empty())
  return;
 
- auto it = m_textures.begin();
- auto it_e = m_textures.end();
-
- for (; it != it_e; ++it)
+ m_necessary.reserve(m_textures.size());
+ for (auto& mtex : m_textures)
  {
- LPCSTR texture_name = it->first;
+ LPCSTR texture_name = mtex.first;
  if (strstr(texture_name, DELIMITER "levels" DELIMITER))
  continue;
  if (!strchr(texture_name, _DELIMITER))

src/Layers/xrRender/dxObjectSpaceRender.cpp

@@ -8,6 +8,7 @@ dxObjectSpaceRender::dxObjectSpaceRender() { m_shDebug.create("debug" DELIMITER
 dxObjectSpaceRender::~dxObjectSpaceRender() { m_shDebug.destroy(); }
 void dxObjectSpaceRender::Copy(IObjectSpaceRender& _in) { *this = *(dxObjectSpaceRender*)&_in; }
 void dxObjectSpaceRender::dbgAddSphere(const Fsphere& sphere, u32 colour) { dbg_S.emplace_back(sphere, colour); }
+void dxObjectSpaceRender::dbgReserveSphere(size_t count) { dbg_S.reserve(count); }
 void dxObjectSpaceRender::dbgRender()
 {
  R_ASSERT(bDebug);

src/Layers/xrRender/dxObjectSpaceRender.h

@@ -15,6 +15,7 @@ class dxObjectSpaceRender : public IObjectSpaceRender
 
  virtual void dbgRender();
  virtual void dbgAddSphere(const Fsphere& sphere, u32 colour);
+ virtual void dbgReserveSphere(size_t count);
  virtual void SetShader();
 
 private:

src/xrCDB/xr_area_raypick.cpp

@@ -134,7 +134,11 @@ bool CObjectSpace::_RayPick(
  STYPE_COLLIDEABLE | ((tgt & rqtObstacle) ? STYPE_OBSTACLE : 0) | ((tgt & rqtShape) ? STYPE_SHAPE : 0);
  g_SpatialSpace->q_ray(r_spatial, 0, d_flags, start, dir, range);
  // Determine visibility for dynamic part of scene
- for (auto spatial : r_spatial)
+#ifdef DEBUG
+ if (bDebug())
+ (*m_pRender)->dbgReserveSphere(r_spatial.size());
+#endif
+ for (auto* spatial : r_spatial)
  {
  IGameObject* collidable = spatial->dcast_GameObject();
  if (0 == collidable)