d9vk: Borderlands 2 problems

Despite other glitches the main one is the constantly degrading GPU usage (so FPS).

From ~100FPS to ~5FPS in several minutes.

The perf utility says:

std::_Hashtable<dxvk::D3D9SamplerKey, std::pair<dxvk::D3D9SamplerKey const, dxvk::Rcdxvk::DxvkSampler >, std::allocator<std::pair<dxvk::D3D9SamplerKey const, dxvk::Rcdxvk::DxvkSampler > >, std::__detail::_Select1st, dxvk::D3D9SamplerKeyEq, dxvk::D3D9SamplerKeyHash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_find_before_node (15,388 samples, 40.58%)

Test:

--- a/src/d3d9/d3d9_device.cpp
+++ b/src/d3d9/d3d9_device.cpp
@@ -3829,9 +3829,9 @@
     key.MaxMipLevel   = state[D3DSAMP_MAXMIPLEVEL];
     key.BorderColor   = D3DCOLOR(state[D3DSAMP_BORDERCOLOR]);
 
-    auto pair = m_samplers.find(key);
-    if (pair != m_samplers.end())
-      return pair->second;
+    //auto pair = m_samplers.find(key);
+    //if (pair != m_samplers.end())
+    //  return pair->second;
 
     auto mipFilter = DecodeMipFilter(key.MipFilter);
 
@@ -3855,7 +3855,7 @@
 
     Rc<DxvkSampler> sampler = m_dxvkDevice->createSampler(info);
 
-    m_samplers.insert(std::make_pair(key, sampler));
+    //m_samplers.insert(std::make_pair(key, sampler));
     return sampler;
   }
 

GPU usage seems OK with this patch, the problem indeed somewhere in the “sampler”.

---

Other problems (FYI):

• high and constantly growing VRAM usage
• rotated Ammo/Weapon/Damage hints
• red texture borders (black is red)

EDIT: “black is red”