feat: add t6 vertexdecl sub asset creator

src/ObjCompiling/Game/T6/ObjCompilerT6.cpp

@@ -5,6 +5,7 @@
 #include "Image/ImageIwdPostProcessor.h"
 #include "KeyValuePairs/KeyValuePairsCompilerT6.h"
 #include "Techset/TechsetCompilerT6.h"
+#include "Techset/VertexDeclCompilerT6.h"
 
 #include <memory>
 
@@ -22,6 +23,8 @@ namespace
 
         collection.AddAssetCreator(key_value_pairs::CreateCompilerT6(memory, zone, zoneDefinition.m_zone_definition, zoneStates));
         collection.AddAssetCreator(techset::CreateCompilerT6(memory, searchPath));
+
+        collection.AddSubAssetCreator(techset::CreateVertexDeclCompilerT6(memory));
     }
 
     void ConfigurePostProcessors(AssetCreatorCollection& collection,

src/ObjCompiling/Game/T6/Techset/VertexDeclCompilerT6.cpp

@@ -0,0 +1,57 @@
+#include "VertexDeclCompilerT6.h"
+
+#include "Game/T6/T6.h"
+#include "Game/T6/Techset/TechsetConstantsT6.h"
+#include "Techset/CommonVertexDeclCreator.h"
+#include "Utils/Logging/Log.h"
+
+using namespace T6;
+
+namespace
+{
+    class VertexDeclCompilerT6 final : public SubAssetCreator<SubAssetVertexDecl>
+    {
+    public:
+        explicit VertexDeclCompilerT6(MemoryManager& memory)
+            : m_memory(memory)
+        {
+        }
+
+        AssetCreationResult CreateSubAsset(const std::string& subAssetName, AssetCreationContext& context) override
+        {
+            const auto commonVertexDecl = techset::CreateVertexDeclFromName(subAssetName, commonRoutingInfos);
+            if (!commonVertexDecl)
+                return AssetCreationResult::Failure();
+
+            if (commonVertexDecl->m_routing.size() > std::extent_v<decltype(MaterialVertexStreamRouting::data)>)
+            {
+                con::error("Vertex declaration can only have up to {} routing entries", std::extent_v<decltype(MaterialVertexStreamRouting::data)>);
+                return AssetCreationResult::Failure();
+            }
+
+            auto* vertexDecl = m_memory.Alloc<MaterialVertexDeclaration>();
+
+            for (const auto& commonRoutingEntry : commonVertexDecl->m_routing)
+            {
+                vertexDecl->routing.data[vertexDecl->streamCount].source = commonRoutingEntry.m_source;
+                vertexDecl->routing.data[vertexDecl->streamCount].dest = commonRoutingEntry.m_destination;
+                vertexDecl->hasOptionalSource = vertexDecl->hasOptionalSource || commonRoutingEntry.m_source >= STREAM_SRC_OPTIONAL_BEGIN;
+
+                vertexDecl->streamCount++;
+            }
+
+            return AssetCreationResult::Success(context.AddSubAsset(AssetRegistration<SubAssetVertexDecl>(subAssetName, vertexDecl)));
+        }
+
+    private:
+        MemoryManager& m_memory;
+    };
+} // namespace
+
+namespace techset
+{
+    std::unique_ptr<ISubAssetCreator> CreateVertexDeclCompilerT6(MemoryManager& memory)
+    {
+        return std::make_unique<VertexDeclCompilerT6>(memory);
+    }
+} // namespace techset

src/ObjCompiling/Game/T6/Techset/VertexDeclCompilerT6.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "Asset/IAssetCreator.h"
+#include "Utils/MemoryManager.h"
+
+#include <memory>
+
+namespace techset
+{
+    std::unique_ptr<ISubAssetCreator> CreateVertexDeclCompilerT6(MemoryManager& memory);
+}