From 50f26d4c6c75e11ae1cc44aad6c795681de76124 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Sat, 16 Jun 2018 11:57:12 -0700
Subject: Reworked vulkan dynamic heap implementation

---
 Primitives/interface/FormatMessage.h | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'Primitives/interface')

diff --git a/Primitives/interface/FormatMessage.h b/Primitives/interface/FormatMessage.h
index 12748474..d0df1472 100644
--- a/Primitives/interface/FormatMessage.h
+++ b/Primitives/interface/FormatMessage.h
@@ -24,6 +24,7 @@
 #pragma once
 
 #include <sstream>
+#include <iomanip>
 
 namespace Diligent
 {
@@ -41,4 +42,34 @@ namespace Diligent
         FormatMsg( ss, FirstArg );
         FormatMsg( ss, RestArgs... ); // recursive call using pack expansion syntax
     }
+
+
+    struct SizeFormatter
+    {
+        size_t size      = 0;
+        size_t precision = 0;
+        size_t ref_size  = 0;
+    };
+
+    template<typename SSType>
+    void FormatMsg(SSType &ss, const SizeFormatter& Arg)
+    {
+        auto ref_size = Arg.ref_size != 0 ? Arg.ref_size : Arg.size;
+        if (ref_size >= (1 << 30))
+        {
+            ss << std::fixed << std::setprecision(Arg.precision) << Arg.size / double{ 1 << 30 } << " GB";
+        }
+        else if(ref_size >= (1 << 20))
+        {
+            ss << std::fixed << std::setprecision(Arg.precision) << Arg.size / double{ 1 << 20 } << " MB";
+        }
+        else if (ref_size >= (1 << 10))
+        {
+            ss << std::fixed << std::setprecision(Arg.precision) << Arg.size / double{ 1 << 10 } << " KB";
+        }
+        else
+        {
+            ss << Arg.size << (Arg.size > 1 ? " Byte" : " Bytes" );
+        }
+    }
 }
\ No newline at end of file
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