engine: fix framerate being capped to 60FPS with vsync, remove vid_displayfrequency cvar. Never sleep with vsync or timedemo, for accuracy

engine/client/vid_common.c

@@ -21,7 +21,6 @@ GNU General Public License for more details.
 #include "platform/platform.h"
 
 #define WINDOW_NAME			XASH_ENGINE_NAME " Window" // Half-Life
-convar_t	*vid_displayfrequency;
 convar_t	*vid_fullscreen;
 convar_t	*vid_mode;
 convar_t	*vid_brightness;
@@ -181,7 +180,6 @@ void VID_Init( void )
 
 	vid_gamma = Cvar_Get( "gamma", "2.5", FCVAR_ARCHIVE, "gamma amount" );
 	vid_brightness = Cvar_Get( "brightness", "0.0", FCVAR_ARCHIVE, "brightness factor" );
-	vid_displayfrequency = Cvar_Get ( "vid_displayfrequency", "0", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "fullscreen refresh rate" );
 	vid_fullscreen = Cvar_Get( "fullscreen", "0", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "enable fullscreen mode" );
 	vid_mode = Cvar_Get( "vid_mode", "0", FCVAR_RENDERINFO, "current video mode index (used just for storage)" );
 	vid_highdpi = Cvar_Get( "vid_highdpi", "1", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "enable High-DPI mode" );

engine/client/vid_common.h

@@ -31,7 +31,6 @@ extern glwstate_t glw_state;
 #define VID_MIN_WIDTH 320
 
 extern convar_t	*vid_fullscreen;
-extern convar_t	*vid_displayfrequency;
 extern convar_t	*vid_highdpi;
 extern convar_t	*vid_rotate;
 extern convar_t	*vid_scale;

engine/common/common.h

@@ -159,7 +159,6 @@ extern convar_t	*scr_download;
 extern convar_t	*cmd_scripting;
 extern convar_t	*sv_maxclients;
 extern convar_t	*cl_allow_levelshots;
-extern convar_t	*vid_displayfrequency;
 extern convar_t	host_developer;
 extern convar_t	*host_limitlocal;
 extern convar_t	*host_framerate;

engine/common/host.c

@@ -276,6 +276,13 @@ void Host_CheckSleep( void )
 {
 	int sleeptime = host_sleeptime->value;
 
+#ifndef XASH_DEDICATED
+	// never sleep in timedemo for benchmarking purposes
+	// also don't sleep with vsync for less lag
+	if( CL_IsTimeDemo( ) || CVAR_TO_BOOL( gl_vsync ))
+		return;
+#endif
+
 	if( Host_IsDedicated() )
 	{
 		// let the dedicated server some sleep
@@ -597,25 +604,17 @@ double Host_CalcFPS( void )
 	}
 	else if( Host_IsLocalGame( ))
 	{
+		if( !CVAR_TO_BOOL( gl_vsync ))
 			fps = host_maxfps->value;
 	}
 	else
+	{
+		if( !CVAR_TO_BOOL( gl_vsync ))
 		{
 			fps = host_maxfps->value;
 			if( fps == 0.0 ) fps = MAX_FPS;
 			fps = bound( MIN_FPS, fps, MAX_FPS );
 		}
-
-	// probably left part of this condition is redundant :-)
-	if( host.type != HOST_DEDICATED && Host_IsLocalGame( ) && !CL_IsTimeDemo( ))
-	{
-		// ajdust fps for vertical synchronization
-		if( CVAR_TO_BOOL( gl_vsync ))
-		{
-			if( vid_displayfrequency->value != 0.0f )
-				fps = vid_displayfrequency->value;
-			else fps = 60.0; // default
-		}
 	}
 #endif