Move fullscreen graph ownership out of pass transitions

engine/src/Rendering/Execution/CameraRenderer.cpp

@@ -98,7 +98,8 @@ RenderGraphTextureDesc BuildImportedTextureDesc(
 RenderGraphImportedTextureOptions BuildImportedTextureOptions(
     const RenderSurface& surface,
     bool isDepth,
-    RenderGraphSurfaceImportUsage usage) {
+    RenderGraphSurfaceImportUsage usage,
+    bool graphOwnsTransitions) {
     const RHI::ResourceStates beforeState =
         isDepth ? surface.GetDepthStateBefore() : surface.GetColorStateBefore();
     const RHI::ResourceStates afterState =
@@ -113,7 +114,7 @@ RenderGraphImportedTextureOptions BuildImportedTextureOptions(
         usage == RenderGraphSurfaceImportUsage::Output
             ? afterState
             : options.initialState;
-    options.graphOwnsTransitions = false;
+    options.graphOwnsTransitions = graphOwnsTransitions;
     return options;
 }
 
@@ -130,6 +131,7 @@ RenderGraphTextureHandle ImportRenderGraphTexture(
 
     const auto existing = registry.find(view);
     if (existing != registry.end()) {
+        builder.MergeImportedTextureOptions(existing->second, importedOptions);
         return existing->second;
     }
 
@@ -144,7 +146,8 @@ RenderGraphImportedSurface ImportRenderGraphSurface(
     RenderGraphImportedTextureRegistry& registry,
     const Containers::String& surfaceName,
     const RenderSurface* surface,
-    RenderGraphSurfaceImportUsage usage) {
+    RenderGraphSurfaceImportUsage usage,
+    bool graphOwnsColorTransitions = false) {
     RenderGraphImportedSurface importedSurface = {};
     if (surface == nullptr) {
         return importedSurface;
@@ -170,7 +173,8 @@ RenderGraphImportedSurface ImportRenderGraphSurface(
                 BuildImportedTextureOptions(
                     *surface,
                     false,
-                    usage)));
+                    usage,
+                    graphOwnsColorTransitions)));
     }
 
     if (RHI::RHIResourceView* depthAttachment = surface->GetDepthAttachment();
@@ -185,7 +189,8 @@ RenderGraphImportedSurface ImportRenderGraphSurface(
                 BuildImportedTextureOptions(
                     *surface,
                     true,
-                    usage));
+                    usage,
+                    false));
     }
 
     return importedSurface;
@@ -565,6 +570,17 @@ bool TryBuildRenderGraphTransientSurface(
     return true;
 }
 
+RenderSurface BuildGraphManagedImportedSurface(
+    const RenderSurface& templateSurface,
+    RHI::ResourceStates stateBefore,
+    RHI::ResourceStates stateAfter) {
+    RenderSurface surface = templateSurface;
+    surface.SetAutoTransitionEnabled(false);
+    surface.SetColorStateBefore(stateBefore);
+    surface.SetColorStateAfter(stateAfter);
+    return surface;
+}
+
 bool ExecuteFullscreenPassSequencePass(
     RenderPassSequence* sequence,
     size_t passIndex,
@@ -694,14 +710,16 @@ bool ExecuteRenderGraphPlan(
                     importedTextures,
                     stageName + ".Source",
                     stagePassContext.sourceSurface,
-                    RenderGraphSurfaceImportUsage::Source);
+                    RenderGraphSurfaceImportUsage::Source,
+                    true);
             const RenderGraphImportedSurface outputSurface =
                 ImportRenderGraphSurface(
                     graphBuilder,
                     importedTextures,
                     stageName + ".Output",
                     &stagePassContext.surface,
-                    RenderGraphSurfaceImportUsage::Output);
+                    RenderGraphSurfaceImportUsage::Output,
+                    true);
             RenderGraphTextureHandle currentSourceColor = GetPrimaryColorTexture(sourceSurface);
             const RenderGraphTextureHandle finalOutputColor =
                 GetPrimaryColorTexture(outputSurface);
@@ -1017,7 +1035,9 @@ bool ExecuteFullscreenPassSequencePass(
     RHI::RHIResourceView* currentSourceColorView = passContext.sourceColorView;
     RHI::ResourceStates currentSourceColorState = passContext.sourceColorState;
     RenderSurface transientSourceSurface = {};
+    RenderSurface graphManagedImportedSourceSurface = {};
     if (sourceColorHandle.IsValid() &&
+        graphContext.OwnsTextureTransitions(sourceColorHandle) &&
         graphContext.IsTransientTexture(sourceColorHandle)) {
         if (!TryBuildRenderGraphTransientSurface(
                 passContext.surface,
@@ -1036,11 +1056,23 @@ bool ExecuteFullscreenPassSequencePass(
             return false;
         }
         currentSourceColorState = RHI::ResourceStates::PixelShaderResource;
+    } else if (sourceColorHandle.IsValid() &&
+               graphContext.OwnsTextureTransitions(sourceColorHandle) &&
+               currentSourceSurface != nullptr) {
+        graphManagedImportedSourceSurface =
+            BuildGraphManagedImportedSurface(
+                *currentSourceSurface,
+                RHI::ResourceStates::PixelShaderResource,
+                RHI::ResourceStates::PixelShaderResource);
+        currentSourceSurface = &graphManagedImportedSourceSurface;
+        currentSourceColorState = RHI::ResourceStates::PixelShaderResource;
     }
 
     const RenderSurface* outputSurface = &passContext.surface;
     RenderSurface transientOutputSurface = {};
+    RenderSurface graphManagedImportedOutputSurface = {};
     if (outputColorHandle.IsValid() &&
+        graphContext.OwnsTextureTransitions(outputColorHandle) &&
         graphContext.IsTransientTexture(outputColorHandle)) {
         if (!TryBuildRenderGraphTransientSurface(
                 passContext.surface,
@@ -1051,6 +1083,14 @@ bool ExecuteFullscreenPassSequencePass(
         }
 
         outputSurface = &transientOutputSurface;
+    } else if (outputColorHandle.IsValid() &&
+               graphContext.OwnsTextureTransitions(outputColorHandle)) {
+        graphManagedImportedOutputSurface =
+            BuildGraphManagedImportedSurface(
+                passContext.surface,
+                RHI::ResourceStates::RenderTarget,
+                RHI::ResourceStates::PixelShaderResource);
+        outputSurface = &graphManagedImportedOutputSurface;
     }
 
     const RenderPassContext chainedContext = {