From 7056425bbdf399edf98d75533b8c62ea985289e1 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Mon, 11 Feb 2019 22:24:19 +0100
Subject: [PATCH] [dxvk] Create state cache directory if it does not yet exist

We only create it if the parent directory already exists. Resolves #907.
---
 src/dxvk/dxvk_state_cache.cpp | 13 ++++++++++++-
 src/dxvk/dxvk_state_cache.h   |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/dxvk/dxvk_state_cache.cpp b/src/dxvk/dxvk_state_cache.cpp
index 5b0e440e..6c5f79dd 100644
--- a/src/dxvk/dxvk_state_cache.cpp
+++ b/src/dxvk/dxvk_state_cache.cpp
@@ -45,6 +45,12 @@ namespace dxvk {
         std::ios_base::binary |
         std::ios_base::trunc);
 
+      if (!file && env::createDirectory(getCacheDir())) {
+        file = std::ofstream(getCacheFileName(),
+          std::ios_base::binary |
+          std::ios_base::trunc);
+      }
+
       // Write header with the current version number
       DxvkStateCacheHeader header;
 
@@ -455,7 +461,7 @@ namespace dxvk {
 
 
   std::string DxvkStateCache::getCacheFileName() const {
-    std::string path = env::getEnvVar("DXVK_STATE_CACHE_PATH");
+    std::string path = getCacheDir();
 
     if (!path.empty() && *path.rbegin() != '/')
       path += '/';
@@ -470,4 +476,9 @@ namespace dxvk {
     return path;
   }
 
+
+  std::string DxvkStateCache::getCacheDir() const {
+    return env::getEnvVar("DXVK_STATE_CACHE_PATH");
+  }
+
 }
diff --git a/src/dxvk/dxvk_state_cache.h b/src/dxvk/dxvk_state_cache.h
index ca4b331a..de3b4104 100644
--- a/src/dxvk/dxvk_state_cache.h
+++ b/src/dxvk/dxvk_state_cache.h
@@ -209,6 +209,8 @@ namespace dxvk {
     void writerFunc();
 
     std::string getCacheFileName() const;
+    
+    std::string getCacheDir() const;
 
   };