From 0eb1f9f978dba6b41d5c500dc9469437b97e0118 Mon Sep 17 00:00:00 2001
From: njohnson <gitea.nicholasjohnson.info>
Date: Fri, 1 May 2026 16:32:51 -0400
Subject: [PATCH] Add IW5 SndCurve dumper.

---
 src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp      |  3 +-
 .../Game/IW5/Sound/LoaderSoundCurveIW5.cpp    | 80 +++++++++++++++++++
 .../Game/IW5/Sound/LoaderSoundCurveIW5.h      | 13 +++
 src/ObjWriting/Game/IW5/ObjWriterIW5.cpp      |  3 +-
 .../Game/IW5/Sound/SndCurveDumperIW5.cpp      | 27 +++++++
 .../Game/IW5/Sound/SndCurveDumperIW5.h        | 13 +++
 6 files changed, 137 insertions(+), 2 deletions(-)
 create mode 100644 src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.cpp
 create mode 100644 src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.h
 create mode 100644 src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.cpp
 create mode 100644 src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.h

diff --git a/src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp b/src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp
index 8023011f..60a79733 100644
--- a/src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp
+++ b/src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp
@@ -6,6 +6,7 @@
 #include "Game/IW5/IW5.h"
 #include "Game/IW5/Image/ImageLoaderEmbeddedIW5.h"
 #include "Game/IW5/Image/ImageLoaderExternalIW5.h"
+#include "Sound/LoaderSoundCurveIW5.h"
 #include "Game/IW5/Techset/PixelShaderLoaderIW5.h"
 #include "Game/IW5/Techset/VertexShaderLoaderIW5.h"
 #include "Game/IW5/XModel/LoaderXModelIW5.h"
@@ -140,7 +141,7 @@ namespace
         collection.AddAssetCreator(image::CreateLoaderEmbeddedIW5(memory, searchPath));
         collection.AddAssetCreator(image::CreateLoaderExternalIW5(memory, searchPath));
         // collection.AddAssetCreator(std::make_unique<AssetLoaderSound>(memory));
-        // collection.AddAssetCreator(std::make_unique<AssetLoaderSoundCurve>(memory));
+        collection.AddAssetCreator(sound_curve::CreateLoaderIW5(memory, searchPath));
         // collection.AddAssetCreator(std::make_unique<AssetLoaderLoadedSound>(memory));
         // collection.AddAssetCreator(std::make_unique<AssetLoaderClipMap>(memory));
         // collection.AddAssetCreator(std::make_unique<AssetLoaderComWorld>(memory));
diff --git a/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.cpp b/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.cpp
new file mode 100644
index 00000000..5b197935
--- /dev/null
+++ b/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.cpp
@@ -0,0 +1,80 @@
+#include "LoaderSoundCurveIW5.h"
+
+#include "Game/IW5/IW5.h"
+#include "ObjLoading.h"
+#include "Parsing/Graph2D/Graph2DReader.h"
+#include "Pool/GlobalAssetPool.h"
+#include "Sound/SoundCurveCommon.h"
+#include "Utils/Logging/Log.h"
+
+#include <cstring>
+#include <format>
+#include <iostream>
+#include <sstream>
+
+using namespace IW5;
+
+namespace
+{
+    class LoaderSoundCurve final : public AssetCreator<AssetSoundCurve>
+    {
+    public:
+        LoaderSoundCurve(MemoryManager& memory, ISearchPath& searchPath)
+            : m_memory(memory),
+              m_search_path(searchPath)
+        {
+        }
+
+        AssetCreationResult CreateAsset(const std::string& assetName, AssetCreationContext& context) override
+        {
+            const auto fileName = sound_curve::GetFileNameForAssetName(assetName);
+            const auto file = m_search_path.Open(fileName);
+            if (!file.IsOpen())
+                return AssetCreationResult::NoAction();
+
+            const auto sndCurveData = graph2d::Read("sound curve", "SNDCURVE", *file.m_stream, fileName, assetName);
+
+            if (!sndCurveData)
+                return AssetCreationResult::Failure();
+
+            if (sndCurveData->knots.size() > std::extent_v<decltype(SndCurve::knots)>)
+            {
+                con::error("Failed to load SndCurve \"{}\": Too many knots ({})", assetName, sndCurveData->knots.size());
+                return AssetCreationResult::Failure();
+            }
+
+            auto* sndCurve = m_memory.Alloc<SndCurve>();
+            sndCurve->filename = m_memory.Dup(assetName.c_str());
+            sndCurve->knotCount = static_cast<uint16_t>(sndCurveData->knots.size());
+
+            for (auto i = 0u; i < std::extent_v<decltype(SndCurve::knots)>; i++)
+            {
+                if (i < sndCurveData->knots.size())
+                {
+                    const auto& [x, y] = sndCurveData->knots[i];
+                    sndCurve->knots[i][0] = static_cast<float>(x);
+                    sndCurve->knots[i][1] = static_cast<float>(y);
+                }
+                else
+                {
+                    sndCurve->knots[i][0] = 0;
+                    sndCurve->knots[i][1] = 0;
+                }
+            }
+
+            return AssetCreationResult::Success(context.AddAsset<AssetSoundCurve>(assetName, sndCurve));
+        }
+
+    private:
+        MemoryManager& m_memory;
+        ISearchPath& m_search_path;
+    };
+} // namespace
+
+namespace sound_curve
+{
+    std::unique_ptr<AssetCreator<AssetSoundCurve>> CreateLoaderIW5(MemoryManager& memory, ISearchPath& searchPath)
+    {
+        return std::make_unique<LoaderSoundCurve>(memory, searchPath);
+    }
+} // namespace sound_curve
diff --git a/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.h b/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.h
new file mode 100644
index 00000000..df7b320b
--- /dev/null
+++ b/src/ObjLoading/Game/IW5/Sound/LoaderSoundCurveIW5.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Asset/IAssetCreator.h"
+#include "Game/IW5/IW5.h"
+#include "SearchPath/ISearchPath.h"
+#include "Utils/MemoryManager.h"
+
+#include <memory>
+
+namespace sound_curve
+{
+    std::unique_ptr<AssetCreator<IW5::AssetSoundCurve>> CreateLoaderIW5(MemoryManager& memory, ISearchPath& searchPath);
+} // namespace sound_curve
diff --git a/src/ObjWriting/Game/IW5/ObjWriterIW5.cpp b/src/ObjWriting/Game/IW5/ObjWriterIW5.cpp
index d720cecd..ca09c0d8 100644
--- a/src/ObjWriting/Game/IW5/ObjWriterIW5.cpp
+++ b/src/ObjWriting/Game/IW5/ObjWriterIW5.cpp
@@ -6,6 +6,7 @@
 #include "Game/IW5/Techset/VertexShaderDumperIW5.h"
 #include "Game/IW5/XModel/XModelDumperIW5.h"
 #include "Image/ImageDumperIW5.h"
+#include "Sound/SndCurveDumperIW5.h"
 #include "Leaderboard/LeaderboardJsonDumperIW5.h"
 #include "Localize/LocalizeDumperIW5.h"
 #include "Maps/AddonMapEntsDumperIW5.h"
@@ -40,7 +41,7 @@ void ObjWriter::RegisterAssetDumpers(AssetDumpingContext& context)
         ));
     RegisterAssetDumper(std::make_unique<image::DumperIW5>());
     // REGISTER_DUMPER(AssetDumpersnd_alias_list_t)
-    // REGISTER_DUMPER(AssetDumperSndCurve)
+    RegisterAssetDumper(std::make_unique<sound_curve::DumperIW5>());
     RegisterAssetDumper(std::make_unique<sound::LoadedSoundDumperIW5>());
     // REGISTER_DUMPER(AssetDumperclipMap_t)
     // REGISTER_DUMPER(AssetDumperComWorld)
diff --git a/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.cpp b/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.cpp
new file mode 100644
index 00000000..d192a84a
--- /dev/null
+++ b/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.cpp
@@ -0,0 +1,27 @@
+#include "SndCurveDumperIW5.h"
+
+#include "Sound/SndCurveDumper.h"
+#include "Sound/SoundCurveCommon.h"
+
+using namespace IW5;
+
+namespace sound_curve
+{
+    void DumperIW5::DumpAsset(AssetDumpingContext& context, const XAssetInfo<AssetSoundCurve::Type>& asset)
+    {
+        const auto* sndCurve = asset.Asset();
+
+        const auto assetFile = context.OpenAssetFile(GetFileNameForAssetName(sndCurve->filename));
+
+        if (!assetFile)
+            return;
+
+        SndCurveDumper dumper(*assetFile);
+
+        const auto knotCount = std::min(static_cast<size_t>(sndCurve->knotCount), std::extent_v<decltype(SndCurve::knots)>);
+        dumper.Init(knotCount);
+
+        for (auto i = 0u; i < knotCount; i++)
+            dumper.WriteKnot(sndCurve->knots[i][0], sndCurve->knots[i][1]);
+    }
+} // namespace sound_curve
diff --git a/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.h b/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.h
new file mode 100644
index 00000000..c0735968
--- /dev/null
+++ b/src/ObjWriting/Game/IW5/Sound/SndCurveDumperIW5.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Dumping/AbstractAssetDumper.h"
+#include "Game/IW5/IW5.h"
+
+namespace sound_curve
+{
+    class DumperIW5 final : public AbstractAssetDumper<IW5::AssetSoundCurve>
+    {
+    protected:
+        void DumpAsset(AssetDumpingContext& context, const XAssetInfo<IW5::AssetSoundCurve::Type>& asset) override;
+    };
+} // namespace sound_curve