From f97aee59c835f659f6a8e1777b2917258830d96b Mon Sep 17 00:00:00 2001
From: terminx <terminx@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Sat, 9 Dec 2017 02:56:12 +0000
Subject: [PATCH] Address issue where timers will no longer update after
 several hours of runtime

git-svn-id: https://svn.eduke32.com/eduke32@6543 1a8010ca-5511-0410-912e-c29ae57300e0
---
 source/build/include/winbits.h |  2 ++
 source/build/src/engine.cpp    |  4 +---
 source/build/src/sdlayer.cpp   | 26 +++++++++-----------------
 source/build/src/winbits.cpp   |  3 ++-
 4 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/source/build/include/winbits.h b/source/build/include/winbits.h
index 9f15f2cb7..6518e8e36 100644
--- a/source/build/include/winbits.h
+++ b/source/build/include/winbits.h
@@ -14,8 +14,10 @@ extern BOOL CheckWinVersion(void);
 extern void win_allowtaskswitching(int32_t onf);
 extern int32_t win_checkinstance(void);
 
+#if defined(RENDERTYPEWIN) || SDL_MAJOR_VERSION==1
 extern int32_t win_inittimer(void);
 extern uint64_t win_getu64ticks(void);
+#endif
 
 extern void win_open(void);
 extern void win_init(void);
diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index 2ce56e453..8945dd07c 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -7160,8 +7160,6 @@ static int32_t loadtables(void)
 
         initksqrt();
 
-        initdivtables();
-
         for (i=0; i<2048; i++)
             reciptable[i] = divscale30(2048, i+2048);
 
@@ -7600,8 +7598,8 @@ static uspritetype tsprite_s[MAXSPRITESONSCREEN];
 
 int32_t preinitengine(void)
 {
+    initdivtables();
     if (initsystem()) Bexit(9);
-
     makeasmwriteable();
 
 #ifdef DYNALLOC_ARRAYS
diff --git a/source/build/src/sdlayer.cpp b/source/build/src/sdlayer.cpp
index d9593033e..76bd2b827 100644
--- a/source/build/src/sdlayer.cpp
+++ b/source/build/src/sdlayer.cpp
@@ -1005,12 +1005,10 @@ int32_t inittimer(int32_t tickspersecond)
 
 //    initprintf("Initializing timer\n");
 
-#ifdef _WIN32
-    {
-        int32_t t = win_inittimer();
-        if (t < 0)
-            return t;
-    }
+#if defined(_WIN32) && SDL_MAJOR_VERSION==1
+    int32_t t = win_inittimer();
+    if (t < 0)
+        return t;
 #endif
 
     timerfreq = 1000;
@@ -1029,14 +1027,10 @@ int32_t inittimer(int32_t tickspersecond)
 //
 void uninittimer(void)
 {
-    if (!timerfreq) return;
-
     timerfreq=0;
-
-#ifdef _WIN32
+#if defined(_WIN32) && SDL_MAJOR_VERSION==1
     win_timerfreq=0;
 #endif
-
     msperu64tick = 0;
 }
 
@@ -1045,12 +1039,10 @@ void uninittimer(void)
 //
 void sampletimer(void)
 {
-    uint32_t i;
-    int32_t n;
-
     if (!timerfreq) return;
-    i = SDL_GetTicks();
-    n = tabledivide32(i * timerticspersec, timerfreq) - timerlastsample;
+
+    int64_t i = SDL_GetTicks();
+    int32_t n = tabledivide64(i * timerticspersec, timerfreq) - timerlastsample;
 
     if (n <= 0) return;
 
@@ -1073,7 +1065,7 @@ uint32_t getticks(void)
 
 // high-resolution timers for profiling
 
-#if SDL_MAJOR_VERSION!=1
+#if SDL_MAJOR_VERSION != 1
 uint64_t getu64ticks(void)
 {
     return SDL_GetPerformanceCounter();
diff --git a/source/build/src/winbits.cpp b/source/build/src/winbits.cpp
index 7d97159e7..956e7ca99 100644
--- a/source/build/src/winbits.cpp
+++ b/source/build/src/winbits.cpp
@@ -150,6 +150,7 @@ int32_t win_checkinstance(void)
 //
 // high-resolution timers for profiling
 //
+#if defined(RENDERTYPEWIN) || SDL_MAJOR_VERSION==1
 int32_t win_inittimer(void)
 {
     int64_t t;
@@ -176,7 +177,7 @@ uint64_t win_getu64ticks(void)
     QueryPerformanceCounter((LARGE_INTEGER *)&i);
     return i;
 }
-
+#endif
 
 
 static void ToggleDesktopComposition(BOOL compEnable)