From 015aca2cfd986bc048282828e246e042506ce585 Mon Sep 17 00:00:00 2001
From: Alexei Kotov <alexdobrohotov@yandex.ru>
Date: Thu, 18 Apr 2024 02:28:48 +0300
Subject: [PATCH] Initial BGSM file parsing

---
 components/bgsm/file.cpp | 124 +++++++++++++++++++++++++++++++++++++++
 components/bgsm/file.hpp |   6 +-
 2 files changed, 127 insertions(+), 3 deletions(-)

diff --git a/components/bgsm/file.cpp b/components/bgsm/file.cpp
index 1ad1918ccf..bb627ae34e 100644
--- a/components/bgsm/file.cpp
+++ b/components/bgsm/file.cpp
@@ -45,6 +45,130 @@ namespace Bgsm
     void BGSMFile::read(BGSMStream& stream)
     {
         MaterialFile::read(stream);
+
+        stream.read(mDiffuseMap);
+        stream.read(mNormalMap);
+        stream.read(mSmoothSpecMap);
+        stream.read(mGreyscaleMap);
+        if (mVersion >= 3)
+        {
+            stream.read(mGlowMap);
+            stream.read(mWrinkleMap);
+            stream.read(mSpecularMap);
+            stream.read(mLightingMap);
+            stream.read(mFlowMap);
+            if (mVersion >= 17)
+            {
+                stream.read(mDistanceFieldAlphaMap);
+            }
+        }
+        else
+        {
+            stream.read(mEnvMap);
+            stream.read(mGlowMap);
+            stream.read(mInnerLayerMap);
+            stream.read(mWrinkleMap);
+            stream.read(mDisplacementMap);
+        }
+        stream.read(mEnableEditorAlphaThreshold);
+        if (mVersion >= 8)
+        {
+            stream.read(mTranslucency);
+            stream.read(mTranslucencyThickObject);
+            stream.read(mTranslucencyMixAlbedoWithSubsurfaceColor);
+            stream.read(mTranslucencySubsurfaceColor);
+            stream.read(mTranslucencyTransmissiveScale);
+            stream.read(mTranslucencyTurbulence);
+        }
+        else
+        {
+            stream.read(mRimLighting);
+            stream.read(mRimPower);
+            stream.read(mBackLightPower);
+            stream.read(mSubsurfaceLighting);
+            stream.read(mSubsurfaceLightingRolloff);
+        }
+        stream.read(mSpecularEnabled);
+        stream.read(mSpecularColor);
+        stream.read(mSpecularMult);
+        stream.read(mSmoothness);
+        stream.read(mFresnelPower);
+        stream.read(mWetnessControlSpecScale);
+        stream.read(mWetnessControlSpecPowerScale);
+        stream.read(mWetnessControlSpecMinvar);
+        if (mVersion < 10)
+        {
+            stream.read(mWetnessControlEnvMapScale);
+        }
+        stream.read(mWetnessControlFresnelPower);
+        stream.read(mWetnessControlMetalness);
+        if (mVersion >= 3)
+        {
+            stream.read(mPBR);
+            if (mVersion >= 9)
+            {
+                stream.read(mCustomPorosity);
+                stream.read(mPorosityValue);
+            }
+        }
+        stream.read(mRootMaterialPath);
+        stream.read(mAnisoLighting);
+        stream.read(mEmitEnabled);
+        if (mEmitEnabled)
+        {
+            stream.read(mEmittanceColor);
+        }
+        stream.read(mEmittanceMult);
+        stream.read(mModelSpaceNormals);
+        stream.read(mExternalEmittance);
+        if (mVersion >= 12)
+        {
+            stream.read(mLumEmittance);
+            if (mVersion >= 13)
+            {
+                stream.read(mUseAdaptiveEmissive);
+                stream.read(mAdaptiveEmissiveExposureParams);
+            }
+        }
+        else if (mVersion < 8)
+        {
+            stream.read(mBackLighting);
+        }
+        stream.read(mReceiveShadows);
+        stream.read(mHideSecret);
+        stream.read(mCastShadows);
+        stream.read(mDissolveFade);
+        stream.read(mAssumeShadowmask);
+        stream.read(mHasGlowMap);
+        if (mVersion < 7)
+        {
+            stream.read(mEnvMapWindow);
+            stream.read(mEnvMapEye);
+        }
+        stream.read(mHair);
+        stream.read(mHairTintColor);
+        stream.read(mTree);
+        stream.read(mFacegen);
+        stream.read(mSkinTint);
+        stream.read(mTessellate);
+        if (mVersion < 3)
+        {
+            stream.read(mDisplacementMapParams);
+            stream.read(mTessellationParams);
+        }
+        stream.read(mGrayscaleToPaletteScale);
+        if (mVersion >= 1)
+        {
+            stream.read(mSkewSpecularAlpha);
+            stream.read(mTerrain);
+            if (mTerrain)
+            {
+                if (mVersion == 3)
+                    stream.skip(4); // Unknown
+
+                stream.read(mTerrainParams);
+            }
+        }
     }
 
     void BGEMFile::read(BGSMStream& stream)
diff --git a/components/bgsm/file.hpp b/components/bgsm/file.hpp
index db0059cd29..57b08f68dc 100644
--- a/components/bgsm/file.hpp
+++ b/components/bgsm/file.hpp
@@ -68,7 +68,7 @@ namespace Bgsm
         std::string mEnvMap;
         std::string mInnerLayerMap;
         std::string mDisplacementMap;
-        bool mEnableEditorAlphaRef;
+        bool mEnableEditorAlphaThreshold;
         bool mTranslucency;
         bool mTranslucencyThickObject;
         bool mTranslucencyMixAlbedoWithSubsurfaceColor;
@@ -78,7 +78,7 @@ namespace Bgsm
         bool mRimLighting;
         float mRimPower;
         float mBackLightPower;
-        bool mSursurfaceLighting;
+        bool mSubsurfaceLighting;
         float mSubsurfaceLightingRolloff;
         bool mSpecularEnabled;
         osg::Vec4f mSpecularColor;
@@ -120,7 +120,7 @@ namespace Bgsm
         bool mSkinTint;
         bool mTessellate;
         osg::Vec2f mDisplacementMapParams;
-        osg::Vec3f mTesselationParams;
+        osg::Vec3f mTessellationParams;
         float mGrayscaleToPaletteScale;
         bool mSkewSpecularAlpha;
         bool mTerrain;