From f57e7221c07f385cebcc457d294e90c446995d41 Mon Sep 17 00:00:00 2001
From: ywang <ywang@snapchat.com>
Date: Wed, 10 Jun 2020 13:23:29 -0700
Subject: [PATCH] temp

---
 code/AssetLib/glTF2/glTF2Exporter.cpp | 17 +++++++++++++++--
 code/Common/Exporter.cpp              |  2 +-
 include/assimp/Exporter.hpp           |  2 +-
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/code/AssetLib/glTF2/glTF2Exporter.cpp b/code/AssetLib/glTF2/glTF2Exporter.cpp
index 566f95e80..98eb79e57 100644
--- a/code/AssetLib/glTF2/glTF2Exporter.cpp
+++ b/code/AssetLib/glTF2/glTF2Exporter.cpp
@@ -1,4 +1,4 @@
-/*
+/*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
@@ -115,7 +115,20 @@ glTF2Exporter::glTF2Exporter(const char* filename, IOSystem* pIOSystem, const ai
     ExportScene();
 
     ExportAnimations();
-
+    
+    //wangyi 0608
+    if(mProperties->HasPropertyCallback("extras"))
+    {
+        std::function<void*(void*)> ExportExtras = mProperties->GetPropertyCallback("extras");
+        char* ret = (char*)ExportExtras((void*)mAsset.get());
+        
+        Document extrasD;
+        extrasD.Parse(ret);
+        std::string strHello = extrasD["hello"].GetString();
+        
+        printf("wangyi 0608 ret: %s\r\n", ret);
+    }
+    
     AssetWriter writer(*mAsset);
 
     if (isBinary) {
diff --git a/code/Common/Exporter.cpp b/code/Common/Exporter.cpp
index e8ee188e6..5fef455bb 100644
--- a/code/Common/Exporter.cpp
+++ b/code/Common/Exporter.cpp
@@ -587,7 +587,7 @@ ExportProperties::ExportProperties(const ExportProperties &other)
 }
 
 //wangyi 0608
-bool ExportProperties::SetPropertyCallback(const char *szName, std::function<void *(void *)> &f) {
+bool ExportProperties::SetPropertyCallback(const char *szName, const std::function<void *(void *)> &f) {
     return SetGenericProperty<std::function<void *(void *)>>(mCallbackProperties, szName, f);
 }
 std::function<void *(void *)> ExportProperties::GetPropertyCallback(const char *szName) const {
diff --git a/include/assimp/Exporter.hpp b/include/assimp/Exporter.hpp
index 4abea6ad0..87c12f374 100644
--- a/include/assimp/Exporter.hpp
+++ b/include/assimp/Exporter.hpp
@@ -394,7 +394,7 @@ public:
     bool SetPropertyMatrix(const char *szName, const aiMatrix4x4 &sValue);
 
     //wangyi 0608
-    bool SetPropertyCallback(const char *szName, std::function<void *(void *)> &f);
+    bool SetPropertyCallback(const char *szName, const std::function<void *(void *)> &f);
 
     // -------------------------------------------------------------------
     /** Get a configuration property.