Merge pull request #4581 from Gargaj/w32fix

Fix Windows 32-bit builds

code/Common/DefaultIOStream.cpp

@@ -156,6 +156,13 @@ size_t DefaultIOStream::FileSize() const {
         if (0 != err)
             return 0;
         mCachedSize = (size_t)(fileStat.st_size);
+#elif defined _WIN32
+        struct _stat32 fileStat;
+        //using fileno + fstat avoids having to handle the filename
+        int err = _fstat32(_fileno(mFile), &fileStat);
+        if (0 != err)
+            return 0;
+        mCachedSize = (size_t)(fileStat.st_size);
 #elif defined __GNUC__ || defined __APPLE__ || defined __MACH__ || defined __FreeBSD__
         struct stat fileStat;
         int err = stat(mFilename.c_str(), &fileStat);

code/PostProcessing/EmbedTexturesProcess.cpp

@@ -128,7 +128,7 @@ bool EmbedTexturesProcess::addTexture(aiScene *pScene, const std::string &path)
 
     aiTexel* imageContent = new aiTexel[ 1ul + static_cast<unsigned long>( imageSize ) / sizeof(aiTexel)];
     pFile->Seek(0, aiOrigin_SET);
-    pFile->Read(reinterpret_cast<char*>(imageContent), imageSize, 1);
+    pFile->Read(reinterpret_cast<char*>(imageContent), static_cast<size_t>(imageSize), 1);
     mIOHandler->Close(pFile);
 
     // Enlarging the textures table