From 76311cfcc9e93d93fce54cbf95a0e0e3172a483f Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sat, 20 Jun 2020 10:46:51 +0200
Subject: [PATCH] - set proper minimal FPS rate for all games.

---
 source/common/rendering/v_video.cpp | 6 ++++--
 source/core/gamecontrol.cpp         | 5 ++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/source/common/rendering/v_video.cpp b/source/common/rendering/v_video.cpp
index 435768c98..e2f4dbb9b 100644
--- a/source/common/rendering/v_video.cpp
+++ b/source/common/rendering/v_video.cpp
@@ -72,11 +72,13 @@ CVAR(Int, win_w, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 CVAR(Int, win_h, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 CVAR(Bool, win_maximized, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
 
+int MinFPSRate = 35;
+
 CUSTOM_CVAR(Int, vid_maxfps, 200, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 {
-	if (self < GameTicRate && self != 0)
+	if (self < MinFPSRate && self != 0)
 	{
-		self = GameTicRate;
+		self = MinFPSRate;
 	}
 	else if (self > 1000)
 	{
diff --git a/source/core/gamecontrol.cpp b/source/core/gamecontrol.cpp
index c484cac01..0d808b01c 100644
--- a/source/core/gamecontrol.cpp
+++ b/source/core/gamecontrol.cpp
@@ -440,10 +440,12 @@ namespace Powerslave
 	::GameInterface* CreateInterface();
 }
 
-CVAR(Bool, duke_compatibility_15, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
+CVAR(Bool, duke_compatibility_15, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
+extern int MinFPSRate; // this is a bit messy.
 
 void CheckFrontend(int flags)
 {
+	MinFPSRate = 30;
 	bool duke_compat = duke_compatibility_15;
 	// This point is too early to have cmdline CVAR checkers working so it must be with a switch.
 	auto c = Args->CheckValue("-duke_compatibility_15");
@@ -462,6 +464,7 @@ void CheckFrontend(int flags)
 	}
 	else if (flags & GAMEFLAG_SW)
 	{
+		MinFPSRate = 40;
 		gi = ShadowWarrior::CreateInterface();
 	}
 	else if (flags & GAMEFLAG_PSEXHUMED)