Backported safety fixes from Isonzo

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/PSSRUpscaler.cs

@@ -89,8 +89,7 @@ namespace UnityEngine.Rendering.PostProcessing
 				_currentContext = (_currentContext + 1) % PSSRPlugin.MaxNumContexts;
 				
 				CommandBuffer cmd = new();
-				_destroyParams.Value.contextIndex = previousContext;
-				PSSRPlugin.IssuePluginEvent(cmd, PSSRPlugin.Event.Destroy, _destroyParams);
+				PSSRPlugin.IssuePluginEvent(cmd, PSSRPlugin.Event.Destroy, new IntPtr(previousContext));
 				Graphics.ExecuteCommandBuffer(cmd);
 				cmd.Release();
 				

Packages/com.ww1gameseries.pssr/Runtime/PSSRPlugin.cs

@@ -21,6 +21,11 @@ namespace WW1.PlayStation
 		{
 			cmd.IssuePluginEventAndData(GetRenderEventAndDataFunc(), (int)pluginEvent, data.GetPointer());
 		}
+		
+		public static void IssuePluginEvent(CommandBuffer cmd, Event pluginEvent, IntPtr data)
+		{
+			cmd.IssuePluginEventAndData(GetRenderEventAndDataFunc(), (int)pluginEvent, data);
+		}
 
 		[DllImport(LibraryInfo.LibraryName)]
 		public static extern IntPtr GetRenderEventAndDataFunc();

Packages/com.ww1gameseries.pssr/Source~/pssrplugin.cpp

@@ -288,6 +288,8 @@ static bool IsInitialized()
     return true;
 }
 
+extern "C" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API PSSR_DestroyContext(uint32_t contextIndex);
+
 extern "C" int32_t UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API PSSR_CreateContext(const pssr_init_params_t* params, Core::Texture** outputColorTexture)
 {
     if (!IsInitialized())
@@ -305,6 +307,11 @@ extern "C" int32_t UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API PSSR_CreateContext
     }
 
     PssrContext& context = s_contexts[params->contextIndex];
+    if (context.mfsrContext != nullptr)
+    {
+        // If for some reason this context wasn't properly destroyed previously, make sure we do that now
+        PSSR_DestroyContext(params->contextIndex);
+    }
 
     MfsrContextInitParameters initParams = {};
     initParams.init();
@@ -592,8 +599,8 @@ static void UNITY_INTERFACE_API OnRenderEventAndData(int eventID, void* data)
         }
         case 2: // Destroy PSSR context
         {
-            auto* params = (pssr_destroy_params_t*)data;
-            PSSR_DestroyContext(params->contextIndex);
+            uint32_t contextIndex = (uint32_t)(intptr_t)data;
+            PSSR_DestroyContext(contextIndex);
             break;
         }
         case 3: // Request PSSR capture