From 73dcec672a2be0082945b71fc7848d9be0233f56 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Wed, 23 Oct 2019 13:25:58 -0400
Subject: Version information on repro binary format. (#1090)

* * Added semantic versioning and hashing test on repro data.
* Added RiffSemanticVersion type

* Fix linux build warning.
---
 source/slang/slang-state-serialize.h | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

(limited to 'source/slang/slang-state-serialize.h')

diff --git a/source/slang/slang-state-serialize.h b/source/slang/slang-state-serialize.h
index dbd1e3992..42edd4080 100644
--- a/source/slang/slang-state-serialize.h
+++ b/source/slang/slang-state-serialize.h
@@ -16,12 +16,21 @@ namespace Slang {
 
 struct StateSerializeUtil
 {
+    enum
+    {
+        kMajorVersion = 0,
+        kMinorVersion = 0,
+        kPatchVersion = 0,
+    };
+
     static const uint32_t kSlangStateFourCC = SLANG_FOUR_CC('S', 'L', 'S', 'T');             ///< Holds all the slang specific chunks
-    
+    static const RiffSemanticVersion g_semanticVersion;
+
     struct Header
     {
-        RiffChunk m_chunk;
-        uint32_t m_compressionType;         ///< Holds the compression type used (if used at all)
+        RiffChunk m_chunk;                              ///< The chunk 
+        RiffSemanticVersion m_semanticVersion;          ///< The semantic version
+        uint32_t m_typeHash;                            ///< A hash based on the binary representation. If doesn't match then not binary compatible (extra check over semantic versioning)
     };
 
     struct FileState
@@ -73,12 +82,6 @@ struct StateSerializeUtil
         Relative32Array<OutputState> outputStates;
     };
 
-    struct FileReference
-    {
-        Relative32Ptr<RelativeString> name;
-        Relative32Ptr<FileState> file;
-    };
-
     struct StringPair
     {
         Relative32Ptr<RelativeString> first;
-- 
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