PostFXContext: Add flag for temporal upsampling

Author: MikhailGorobets

PostProcess/Bloom/src/Bloom.cpp

@@ -1,5 +1,5 @@
 /*
- *  Copyright 2024-2025 Diligent Graphics LLC
+ *  Copyright 2024-2026 Diligent Graphics LLC
  *
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@
 
 #include "Bloom.hpp"
 #include "CommonlyUsedStates.h"
+#include "PostFXContext.hpp"
 #include "RenderStateCache.hpp"
 #include "GraphicsUtilities.h"
 #include "MapHelper.hpp"
@@ -80,14 +81,17 @@ void Bloom::PrepareResources(IRenderDevice* pDevice, IDeviceContext* pDeviceCont
 
     m_CurrentFrameIdx = FrameDesc.Index;
 
-    if (m_BackBufferWidth == FrameDesc.Width && m_BackBufferHeight == FrameDesc.Height && m_FeatureFlags == FeatureFlags)
+    Uint32 Width  = (pPostFXContext->GetFeatureFlags() & PostFXContext::FEATURE_FLAG_TEMPORAL_UPSCALING) ? FrameDesc.OutputWidth : FrameDesc.Width;
+    Uint32 Height = (pPostFXContext->GetFeatureFlags() & PostFXContext::FEATURE_FLAG_TEMPORAL_UPSCALING) ? FrameDesc.OutputHeight : FrameDesc.Height;
+
+    if (m_BackBufferWidth == Width && m_BackBufferHeight == Height && m_FeatureFlags == FeatureFlags)
         return;
 
     for (auto& Iter : m_RenderTech)
         Iter.second.SRB.Release();
 
-    m_BackBufferWidth  = FrameDesc.Width;
-    m_BackBufferHeight = FrameDesc.Height;
+    m_BackBufferWidth  = Width;
+    m_BackBufferHeight = Height;
     m_FeatureFlags     = FeatureFlags;
 
     Uint32 HalfWidth    = m_BackBufferWidth / 2u;

PostProcess/Common/interface/PostFXContext.hpp

@@ -1,5 +1,5 @@
 /*
- *  Copyright 2024-2025 Diligent Graphics LLC
+ *  Copyright 2024-2026 Diligent Graphics LLC
  *
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -52,7 +52,8 @@ class PostFXContext
     {
         FEATURE_FLAG_NONE                 = 0u,
         FEATURE_FLAG_REVERSED_DEPTH       = 1u << 0u,
-        FEATURE_FLAG_HALF_PRECISION_DEPTH = 1u << 1u
+        FEATURE_FLAG_HALF_PRECISION_DEPTH = 1u << 1u,
+        FEATURE_FLAG_TEMPORAL_UPSCALING   = 1u << 2u,
     };
 
     struct FrameDesc