From 339730a6d84a3a90ae23d732fbfc1c81af88d435 Mon Sep 17 00:00:00 2001
From: Cory Fields <cory-nospam-@coryfields.com>
Date: Thu, 12 Apr 2018 17:22:49 -0400
Subject: [PATCH] logging: bypass timestamp formatting when not logging

This leads to massive speedups under Wine.
---
 src/util.h | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/util.h b/src/util.h
index 3952461e4..18d2076a0 100644
--- a/src/util.h
+++ b/src/util.h
@@ -145,14 +145,16 @@ template<typename T, typename... Args> static inline void MarkUsed(const T& t, c
 #define LogPrint(category, ...) do { MarkUsed(__VA_ARGS__); } while(0)
 #else
 #define LogPrintf(...) do { \
-    std::string _log_msg_; /* Unlikely name to avoid shadowing variables */ \
-    try { \
-        _log_msg_ = tfm::format(__VA_ARGS__); \
-    } catch (tinyformat::format_error &fmterr) { \
-        /* Original format string will have newline so don't add one here */ \
-        _log_msg_ = "Error \"" + std::string(fmterr.what()) + "\" while formatting log message: " + FormatStringFromLogArgs(__VA_ARGS__); \
+    if (fPrintToConsole || fPrintToDebugLog) { \
+        std::string _log_msg_; /* Unlikely name to avoid shadowing variables */ \
+        try { \
+            _log_msg_ = tfm::format(__VA_ARGS__); \
+        } catch (tinyformat::format_error &fmterr) { \
+            /* Original format string will have newline so don't add one here */ \
+            _log_msg_ = "Error \"" + std::string(fmterr.what()) + "\" while formatting log message: " + FormatStringFromLogArgs(__VA_ARGS__); \
+        } \
+        LogPrintStr(_log_msg_); \
     } \
-    LogPrintStr(_log_msg_); \
 } while(0)
 
 #define LogPrint(category, ...) do { \