feat: add iw5 gfxlight dumper and loader

2026-05-17 07:21:43 +00:00 · 2026-04-30 19:14:53 -04:00
parent a905a6d161
commit 3c15f8ad7e
7 changed files with 165 additions and 3 deletions
@@ -0,0 +1,103 @@
+#include "LightDefLoaderIW5.h"
+
+#include "Game/IW5/IW5.h"
+#include "LightDef/LightDefCommon.h"
+#include "Utils/Logging/Log.h"
+
+#include <cstring>
+#include <format>
+#include <iostream>
+
+using namespace IW5;
+
+namespace
+{
+    constexpr auto MAX_IMAGE_NAME_SIZE = 0x800;
+
+    class LoaderLightDef final : public AssetCreator<AssetLightDef>
+    {
+    public:
+        LoaderLightDef(MemoryManager& memory, ISearchPath& searchPath)
+            : m_memory(memory),
+              m_search_path(searchPath)
+        {
+        }
+
+        AssetCreationResult CreateAsset(const std::string& assetName, AssetCreationContext& context) override
+        {
+            const auto filename = light_def::GetFileNameForAsset(assetName);
+            const auto file = m_search_path.Open(filename);
+            if (!file.IsOpen())
+                return AssetCreationResult::NoAction();
+
+            auto* lightDef = m_memory.Alloc<GfxLightDef>();
+            lightDef->name = m_memory.Dup(assetName.c_str());
+
+            AssetRegistration<AssetLightDef> registration(assetName, lightDef);
+
+            int8_t attenuationSamplerState;
+            file.m_stream->read(reinterpret_cast<char*>(&attenuationSamplerState), sizeof(int8_t));
+
+            std::string attenuationName = "";
+            unsigned char letter;
+            file.m_stream->read(reinterpret_cast<char*>(&letter), sizeof(int8_t));
+            while (letter != '\0')
+            {
+                attenuationName += letter;
+
+                file.m_stream->read(reinterpret_cast<char*>(&letter), sizeof(int8_t));
+            }
+
+            auto* attenuationImageDependency = context.LoadDependency<AssetImage>(attenuationName);
+            if (!attenuationImageDependency)
+            {
+                con::error("Could not load GfxLightDef \"{}\" due to missing attenuation image \"{}\"", assetName, attenuationName);
+                return AssetCreationResult::Failure();
+            }
+            registration.AddDependency(attenuationImageDependency);
+
+            int8_t cucolorisSamplerState;
+            file.m_stream->read(reinterpret_cast<char*>(&cucolorisSamplerState), sizeof(int8_t));
+
+            std::string cucolorisName = "";
+            file.m_stream->read(reinterpret_cast<char*>(&letter), sizeof(int8_t));
+            while (letter != '\0')
+            {
+                cucolorisName += letter;
+
+                file.m_stream->read(reinterpret_cast<char*>(&cucolorisName), sizeof(int8_t));
+            }
+
+            auto* cucolorisImageDependency = context.LoadDependency<AssetImage>(cucolorisName);
+            if (!cucolorisImageDependency)
+            {
+                con::error("Could not load GfxLightDef \"{}\" due to missing cucoloris image \"{}\"", assetName, cucolorisName);
+                return AssetCreationResult::Failure();
+            }
+            registration.AddDependency(cucolorisImageDependency);
+
+            int8_t lmapLookupStart;
+            file.m_stream->read(reinterpret_cast<char*>(&lmapLookupStart), sizeof(int8_t));
+
+            lightDef->attenuation.samplerState = attenuationSamplerState;
+            lightDef->attenuation.image = attenuationImageDependency->Asset();
+            lightDef->cucoloris.samplerState = cucolorisSamplerState;
+            lightDef->cucoloris.image = cucolorisImageDependency->Asset();
+            lightDef->lmapLookupStart = static_cast<int>(static_cast<uint8_t>(lmapLookupStart));
+
+            return AssetCreationResult::Success(context.AddAsset(std::move(registration)));
+        }
+
+    private:
+        MemoryManager& m_memory;
+        ISearchPath& m_search_path;
+    };
+} // namespace
+
+namespace light_def
+{
+    std::unique_ptr<AssetCreator<AssetLightDef>> CreateLoaderIW5(MemoryManager& memory, ISearchPath& searchPath)
+    {
+        return std::make_unique<LoaderLightDef>(memory, searchPath);
+    }
+} // namespace light_def