engine: platform: linux: Add gettid definition for old systems

The gettid() library support was added in glibc 2.30. Earlier glibc
versions did not provide a wrapper for this system call, necessitating
the use of syscall(2).

Also, put _GNU_SOURCE definition in the guard to avoid the warning:
  ../engine/platform/linux/sys_linux.c:16: warning: "_GNU_SOURCE" redefined
   #define _GNU_SOURCE

  <command-line>: note: this is the location of the previous definition

.cirrus.yml

@@ -1,14 +1,15 @@
 task:
-  name: freebsd-12-amd64
-  freebsd_instance:
-    image_family: freebsd-12-4
-  setup_script:
-    - pkg update
-    - pkg install -y pkgconf git sdl2 python fontconfig opus
-    - git submodule update --init --recursive
-  test_script:
-    - ./scripts/cirrus/build_freebsd.sh dedicated
-    - ./scripts/cirrus/build_freebsd.sh full
+# Seems packages for it were removed from the mirrors
+#  name: freebsd-12-amd64
+#  freebsd_instance:
+#    image_family: freebsd-12-4
+#  setup_script:
+#    - pkg update
+#    - pkg install -y pkgconf git sdl2 python fontconfig opus
+#    - git submodule update --init --recursive
+#  test_script:
+#    - ./scripts/cirrus/build_freebsd.sh dedicated
+#    - ./scripts/cirrus/build_freebsd.sh full
 
 task:
   name: freebsd-13-amd64

common/enginefeatures.h

@@ -27,4 +27,19 @@ GNU General Public License for more details.
 #define ENGINE_COMPUTE_STUDIO_LERP	(1<<7)	// enable MOVETYPE_STEP lerping back in engine
 #define ENGINE_LINEAR_GAMMA_SPACE	(1<<8)	// disable influence of gamma/brightness cvars to textures/lightmaps, for mods with custom renderer
 
+#define ENGINE_STEP_POSHISTORY_LERP (1U<<31) // enable MOVETYPE_STEP interpolation based on position history. Incompatible with ENGINE_COMPUTE_STUDIO_LERP!
+
+// adjust the mask when features will be added or removed
+#define ENGINE_FEATURES_MASK      \
+	( ENGINE_WRITE_LARGE_COORD    \
+	| ENGINE_QUAKE_COMPATIBLE     \
+	| ENGINE_LOAD_DELUXEDATA      \
+	| ENGINE_PHYSICS_PUSHER_EXT   \
+	| ENGINE_LARGE_LIGHTMAPS      \
+	| ENGINE_COMPENSATE_QUAKE_BUG \
+	| ENGINE_IMPROVED_LINETRACE   \
+	| ENGINE_COMPUTE_STUDIO_LERP  \
+	| ENGINE_LINEAR_GAMMA_SPACE   \
+	| ENGINE_STEP_POSHISTORY_LERP )
+
 #endif//FEATURES_H

common/render_api.h

@@ -229,7 +229,7 @@ typedef struct render_api_s
 	void		(*R_Reserved0)( void );
 
 	// static allocations
-	void		*(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline );
+	void		*(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline ) ALLOC_CHECK( 1 );
 	void		(*pfnMemFree)( void *mem, const char *filename, const int fileline );
 
  	// engine utils (not related with render API but placed here)

common/xash3d_types.h

@@ -88,18 +88,21 @@ typedef uint64_t longtime_t;
 	#define _format(x) __attribute__((format(printf, x, x+1)))
 	#define NORETURN __attribute__((noreturn))
 	#define NONNULL __attribute__((nonnull))
+	#define ALLOC_CHECK(x) __attribute__((alloc_size(x)))
 #elif defined(_MSC_VER)
 	#define EXPORT          __declspec( dllexport )
 	#define GAME_EXPORT
 	#define _format(x)
 	#define NORETURN
 	#define NONNULL
+	#define ALLOC_CHECK(x)
 #else
 	#define EXPORT
 	#define GAME_EXPORT
 	#define _format(x)
 	#define NORETURN
 	#define NONNULL
+	#define ALLOC_CHECK(x)
 #endif
 
 #if ( __GNUC__ >= 3 )
@@ -118,10 +121,15 @@ typedef uint64_t longtime_t;
 	#define likely(x)   (x)
 #endif
 
-#if defined( static_assert ) // C11 static_assert
-#define STATIC_ASSERT static_assert
+#if __STDC_VERSION >= 202311L || __cplusplus >= 201103L // C23 or C++ static_assert is a keyword
+	#define STATIC_ASSERT_ static_assert
+	#define STATIC_ASSERT  static_assert
+#elif __STDC_VERSION >= 201112L // in C11 it's _Static_assert
+	#define STATIC_ASSERT_ _Static_assert
+	#define STATIC_ASSERT  _Static_assert
 #else
-#define STATIC_ASSERT( x, y ) extern int _static_assert_##__LINE__[( x ) ? 1 : -1]
+	#define STATIC_ASSERT_( id, x, y ) extern int id[( x ) ? 1 : -1]
+	#define STATIC_ASSERT( x, y )      STATIC_ASSERT_( static_assert_##__LINE__, x, y )
 #endif
 
 #ifdef XASH_BIG_ENDIAN

engine/client/cl_demo.c

@@ -372,7 +372,7 @@ void CL_WriteDemoHeader( const char *name )
 	demo.header.id = IDEMOHEADER;
 	demo.header.dem_protocol = DEMO_PROTOCOL;
 	demo.header.net_protocol = cls.legacymode ? PROTOCOL_LEGACY_VERSION : PROTOCOL_VERSION;
-	demo.header.host_fps = bound( MIN_FPS, host_maxfps.value, MAX_FPS );
+	demo.header.host_fps = host_maxfps.value ? bound( MIN_FPS, host_maxfps.value, MAX_FPS ) : MAX_FPS;
 	Q_strncpy( demo.header.mapname, clgame.mapname, sizeof( demo.header.mapname ));
 	Q_strncpy( demo.header.comment, clgame.maptitle, sizeof( demo.header.comment ));
 	Q_strncpy( demo.header.gamedir, FS_Gamedir(), sizeof( demo.header.gamedir ));
@@ -570,6 +570,9 @@ void CL_ReadDemoUserCmd( qboolean discard )
 		memset( &nullcmd, 0, sizeof( nullcmd ));
 		MSG_Init( &buf, "UserCmd", data, sizeof( data ));
 
+		// a1ba: I have no proper explanation why
+		cmdnumber++;
+
 		pcmd = &cl.commands[cmdnumber & CL_UPDATE_MASK];
 		pcmd->processedfuncs = false;
 		pcmd->senttime = 0.0f;

engine/client/cl_efx.c

@@ -175,7 +175,7 @@ particle_t * GAME_EXPORT R_AllocParticle( void (*callback)( particle_t*, float )
 		return NULL;
 
 	// never alloc particles when we not in game
-//	if( tr.frametime == 0.0 ) return NULL;
+	if( cl_clientframetime() == 0.0 ) return NULL;
 
 	if( !cl_free_particles )
 	{
@@ -226,7 +226,7 @@ particle_t *R_AllocTracer( const vec3_t org, const vec3_t vel, float life )
 		return NULL;
 
 	// never alloc particles when we not in game
-	//if( tr.frametime == 0.0 ) return NULL;
+	if( cl_clientframetime() == 0.0 ) return NULL;
 
 	if( !cl_free_particles )
 	{

engine/client/cl_frame.c

@@ -24,7 +24,7 @@ GNU General Public License for more details.
 #include "sound.h"
 #include "input.h"
 
-#define STUDIO_INTERPOLATION_FIX
+// #define STUDIO_INTERPOLATION_FIX
 
 /*
 ==================
@@ -54,17 +54,28 @@ Store another position into interpolation circular buffer
 */
 void CL_UpdatePositions( cl_entity_t *ent )
 {
-	position_history_t	*ph;
+	position_history_t	*ph, *prev;
+
+	prev = &ent->ph[ent->current_position];
 
 	ent->current_position = (ent->current_position + 1) & HISTORY_MASK;
 	ph = &ent->ph[ent->current_position];
 	VectorCopy( ent->curstate.origin, ph->origin );
 	VectorCopy( ent->curstate.angles, ph->angles );
 
-	if( ent->model && ent->model->type == mod_brush )
-		ph->animtime = ent->curstate.animtime;
-	else
-		ph->animtime = cl.time;
+	ph->animtime = ent->curstate.animtime;
+
+	// a1ba: for some reason, this sometimes still may happen
+	// at this time, I'm not sure whether this bug happens in delta readwrite code
+	// or server just decides to go backwards and really sends these values
+	if( ph->animtime < prev->animtime )
+	{
+		// try to deduce real animtime by looking up the difference between
+		// server messages (cl.mtime is never modified ny the interpolation code)
+		float diff = Q_max( 0, ent->curstate.msg_time - ent->prevstate.msg_time );
+
+		ph->animtime = prev->animtime + diff;
+	}
 }
 
 /*
@@ -159,6 +170,13 @@ qboolean CL_EntityCustomLerp( cl_entity_t *e )
 	case MOVETYPE_FLY:
 	case MOVETYPE_COMPOUND:
 		return false;
+
+	// ABSOLUTELY STUPID HACK TO ALLOW MONSTERS
+	// INTERPOLATION IN GRAVGUNMOD COOP
+	// MUST BE REMOVED ONCE WE REMOVE 48 PROTO SUPPORT
+	case MOVETYPE_TOSS:
+		if( cls.legacymode && e->model && e->model->type == mod_studio )
+			return false;
 	}
 
 	return true;
@@ -171,7 +189,7 @@ CL_ParametricMove
 check for parametrical moved entities
 ==================
 */
-qboolean CL_ParametricMove( cl_entity_t *ent )
+static qboolean CL_ParametricMove( cl_entity_t *ent )
 {
 	float	frac, dt, t;
 	vec3_t	delta;
@@ -349,11 +367,10 @@ CL_FindInterpolationUpdates
 find two timestamps
 ==================
 */
-qboolean CL_FindInterpolationUpdates( cl_entity_t *ent, float targettime, position_history_t **ph0, position_history_t **ph1 )
+static qboolean CL_FindInterpolationUpdates( cl_entity_t *ent, double targettime, position_history_t **ph0, position_history_t **ph1 )
 {
 	qboolean	extrapolate = true;
 	uint		i, i0, i1, imod;
-	float	at;
 
 	imod = ent->current_position;
 	i0 = (imod - 0) & HISTORY_MASK;	// curpos (lerp end)
@@ -361,8 +378,10 @@ qboolean CL_FindInterpolationUpdates( cl_entity_t *ent, float targettime, positi
 
 	for( i = 1; i < HISTORY_MAX - 1; i++ )
 	{
-		at = ent->ph[( imod - i ) & HISTORY_MASK].animtime;
-		if( at == 0.0f ) break;
+		double at = ent->ph[( imod - i ) & HISTORY_MASK].animtime;
+
+		if( at == 0.0f )
+			break;
 
 		if( targettime > at )
 		{
@@ -387,15 +406,14 @@ CL_PureOrigin
 non-local players interpolation
 ==================
 */
-void CL_PureOrigin( cl_entity_t *ent, float t, vec3_t outorigin, vec3_t outangles )
+static void CL_PureOrigin( cl_entity_t *ent, double t, vec3_t outorigin, vec3_t outangles )
 {
-	qboolean		extrapolate;
-	float		t1, t0, frac;
+	double		t1, t0, frac;
 	position_history_t	*ph0, *ph1;
 	vec3_t		delta;
 
 	// NOTE: ph0 is next, ph1 is a prev
-	extrapolate = CL_FindInterpolationUpdates( ent, t, &ph0, &ph1 );
+	CL_FindInterpolationUpdates( ent, t, &ph0, &ph1 );
 
 	if ( !ph0 || !ph1 )
 		return;
@@ -403,7 +421,7 @@ void CL_PureOrigin( cl_entity_t *ent, float t, vec3_t outorigin, vec3_t outangle
 	t0 = ph0->animtime;
 	t1 = ph1->animtime;
 
-	if( t0 != 0.0f )
+	if( t0 != 0.0 )
 	{
 		vec4_t	q, q1, q2;
 
@@ -411,9 +429,9 @@ void CL_PureOrigin( cl_entity_t *ent, float t, vec3_t outorigin, vec3_t outangle
 
 		if( !Q_equal( t0, t1 ))
 			frac = ( t - t1 ) / ( t0 - t1 );
-		else frac = 1.0f;
+		else frac = 1.0;
 
-		frac = bound( 0.0f, frac, 1.2f );
+		frac = bound( 0.0, frac, 1.2 );
 
 		VectorMA( ph1->origin, frac, delta, outorigin );
 
@@ -437,11 +455,11 @@ CL_InterpolateModel
 non-players interpolation
 ==================
 */
-int CL_InterpolateModel( cl_entity_t *e )
+static int CL_InterpolateModel( cl_entity_t *e )
 {
 	position_history_t  *ph0 = NULL, *ph1 = NULL;
 	vec3_t		origin, angles, delta;
-	float		t, t1, t2, frac;
+	double		t, t1, t2, frac;
 	vec4_t		q, q1, q2;
 
 	VectorCopy( e->curstate.origin, e->origin );
@@ -489,9 +507,7 @@ int CL_InterpolateModel( cl_entity_t *e )
 		return 0;
 	}
 
-	// HACKHACK: workaround buggy position history animtime
-	// going backward sometimes
-	if( Q_equal( t2, t1 ) || t2 < t1 )
+	if( Q_equal( t2, t1 ))
 	{
 		VectorCopy( ph0->origin, e->origin );
 		VectorCopy( ph0->angles, e->angles );
@@ -529,7 +545,7 @@ interpolate non-local clients
 */
 void CL_ComputePlayerOrigin( cl_entity_t *ent )
 {
-	float	targettime;
+	double	targettime;
 	vec4_t	q, q1, q2;
 	vec3_t	origin;
 	vec3_t	angles;
@@ -1212,17 +1228,33 @@ void CL_LinkPacketEntities( frame_t *frame )
 #else
 					if( ent->lastmove >= cl.time )
 					{
+						float at = ent->curstate.animtime;
+
 						CL_ResetLatchedVars( ent, true );
+
+						if( cl_fixmodelinterpolationartifacts.value )
+							ent->latched.prevanimtime = ent->curstate.animtime = at;
+
 						VectorCopy( ent->curstate.origin, ent->latched.prevorigin );
 						VectorCopy( ent->curstate.angles, ent->latched.prevangles );
 
-						// disable step interpolation in client.dll
-						ent->curstate.movetype = MOVETYPE_NONE;
+						if( !FBitSet( host.features, ENGINE_COMPUTE_STUDIO_LERP ))
+						{
+							// disable step interpolation in client.dll
+							ent->curstate.movetype = MOVETYPE_NONE;
+						}
 					}
 					else
 					{
-						// restore step interpolation in client.dll
-						ent->curstate.movetype = MOVETYPE_STEP;
+						if( FBitSet( host.features, ENGINE_COMPUTE_STUDIO_LERP ))
+						{
+							interpolate = true;
+						}
+						else
+						{
+							// restore step interpolation in client.dll
+							ent->curstate.movetype = MOVETYPE_STEP;
+						}
 					}
 #endif
 				}
@@ -1247,11 +1279,24 @@ void CL_LinkPacketEntities( frame_t *frame )
 				if ( !CL_InterpolateModel( ent ))
 					continue;
 			}
-			else if( ent->curstate.movetype == MOVETYPE_STEP && !NET_IsLocalAddress( cls.netchan.remote_address ))
+			// a1ba: in GoldSrc this is done for cstrike and czero
+			// but let modders use this as an engine feature
+			else if( FBitSet( host.features, ENGINE_STEP_POSHISTORY_LERP ) &&
+				ent->curstate.movetype == MOVETYPE_STEP && !NET_IsLocalAddress( cls.netchan.remote_address ))
 			{
 				if( !CL_InterpolateModel( ent ))
 					continue;
 			}
+#if 0
+			// ABSOLUTELY STUPID HACK TO ALLOW MONSTERS
+			// INTERPOLATION IN GRAVGUNMOD COOP
+			// MUST BE REMOVED ONCE WE REMOVE 48 PROTO SUPPORT
+			else if( cls.legacymode && ent->model->type == mod_studio && ent->curstate.movetype == MOVETYPE_TOSS )
+			{
+				if( !CL_InterpolateModel( ent ))
+					continue;
+			}
+#endif
 			else
 			{
 				// no interpolation right now

engine/client/cl_game.c

@@ -1235,11 +1235,7 @@ static model_t *CL_LoadSpriteModel( const char *filename, uint type, uint texFla
 {
 	char	name[MAX_QPATH];
 	model_t	*mod;
-	int	i;
-
-	// use high indices for client sprites
-	// for GoldSrc bug-compatibility
-	const int start = type != SPR_HUDSPRITE ? MAX_CLIENT_SPRITES / 2 : 0;
+	int	i, start;
 
 	if( !COM_CheckString( filename ))
 	{
@@ -1250,7 +1246,7 @@ static model_t *CL_LoadSpriteModel( const char *filename, uint type, uint texFla
 	Q_strncpy( name, filename, sizeof( name ));
 	COM_FixSlashes( name );
 
-	for( i = 0, mod = clgame.sprites + start; i < MAX_CLIENT_SPRITES / 2; i++, mod++ )
+	for( i = 0, mod = clgame.sprites; i < MAX_CLIENT_SPRITES; i++, mod++ )
 	{
 		if( !Q_stricmp( mod->name, name ))
 		{
@@ -1267,8 +1263,15 @@ static model_t *CL_LoadSpriteModel( const char *filename, uint type, uint texFla
 	}
 
 	// find a free model slot spot
-	for( i = 0, mod = clgame.sprites + start; i < MAX_CLIENT_SPRITES / 2; i++, mod++ )
-		if( !mod->name[0] ) break; // this is a valid spot
+	// use low indices only for HUD sprites
+	// for GoldSrc bug compatibility
+	start = type == SPR_HUDSPRITE ? 0 : MAX_CLIENT_SPRITES / 2;
+
+	for( i = 0, mod = &clgame.sprites[start]; i < MAX_CLIENT_SPRITES / 2; i++, mod++ )
+	{
+		if( !mod->name[0] )
+			break; // this is a valid spot
+	}
 
 	if( i == MAX_CLIENT_SPRITES / 2 )
 	{

engine/client/cl_main.c

@@ -78,6 +78,8 @@ CVAR_DEFINE_AUTO( cl_trace_events, "0", FCVAR_ARCHIVE|FCVAR_CHEAT, "enable event
 static CVAR_DEFINE_AUTO( cl_nat, "0", 0, "show servers running under NAT" );
 CVAR_DEFINE_AUTO( hud_utf8, "0", FCVAR_ARCHIVE, "Use utf-8 encoding for hud text" );
 CVAR_DEFINE_AUTO( ui_renderworld, "0", FCVAR_ARCHIVE, "render world when UI is visible" );
+static CVAR_DEFINE_AUTO( cl_maxframetime, "0", 0, "set deadline timer for client rendering to catch freezes" );
+CVAR_DEFINE_AUTO( cl_fixmodelinterpolationartifacts, "1", 0, "try to fix up models interpolation on a moving platforms (monsters on trains for example)" );
 
 //
 // userinfo
@@ -605,10 +607,10 @@ void CL_CreateCmd( void )
 	// message we are constructing.
 	i = cls.netchan.outgoing_sequence & CL_UPDATE_MASK;
 	pcmd = &cl.commands[i];
-	pcmd->processedfuncs = false;
 
 	if( !cls.demoplayback )
 	{
+		pcmd->processedfuncs = false;
 		pcmd->senttime = host.realtime;
 		memset( &pcmd->cmd, 0, sizeof( pcmd->cmd ));
 		pcmd->receivedtime = -1.0;
@@ -2917,6 +2919,8 @@ void CL_InitLocal( void )
 	Cvar_RegisterVariable( &cl_showevents );
 	Cvar_Get( "lastdemo", "", FCVAR_ARCHIVE, "last played demo" );
 	Cvar_RegisterVariable( &ui_renderworld );
+	Cvar_RegisterVariable( &cl_maxframetime );
+	Cvar_RegisterVariable( &cl_fixmodelinterpolationartifacts );
 
 	// these two added to shut up CS 1.5 about 'unknown' commands
 	Cvar_Get( "lightgamma", "1", FCVAR_ARCHIVE, "ambient lighting level (legacy, unused)" );
@@ -3057,6 +3061,8 @@ void Host_ClientFrame( void )
 {
 	// if client is not active, do nothing
 	if( !cls.initialized ) return;
+	if( cls.key_dest == key_game && cls.state == ca_active && !Con_Visible() )
+		Platform_SetTimer( cl_maxframetime.value );
 
 	// if running the server remotely, send intentions now after
 	// the incoming messages have been read

engine/client/cl_parse.c

@@ -903,7 +903,7 @@ void CL_ParseServerData( sizebuf_t *msg, qboolean legacy )
 	Q_strncpy( clgame.maptitle, MSG_ReadString( msg ), sizeof( clgame.maptitle ));
 	background = MSG_ReadOneBit( msg );
 	Q_strncpy( gamefolder, MSG_ReadString( msg ), sizeof( gamefolder ));
-	host.features = (uint)MSG_ReadLong( msg );
+	Host_ValidateEngineFeatures( MSG_ReadDword( msg ));
 
 	if( !legacy )
 	{
@@ -1638,9 +1638,6 @@ void CL_RegisterResources( sizebuf_t *msg )
 
 			CL_ClearWorld ();
 
-			// update the ref state.
-			R_UpdateRefState ();
-
 			// tell rendering system we have a new set of models.
 			ref.dllFuncs.R_NewMap ();
 

engine/client/cl_parse_48.c

@@ -660,9 +660,6 @@ void CL_LegacyPrecache_f( void )
 	if( clgame.entities )
 		clgame.entities->model = cl.worldmodel;
 
-	// update the ref state.
-	R_UpdateRefState ();
-
 	// tell rendering system we have a new set of models.
 	ref.dllFuncs.R_NewMap ();
 

engine/client/cl_pmove.c

@@ -824,6 +824,27 @@ static void CL_SetupPMove( playermove_t *pmove, const local_state_t *from, const
 	cd = &from->client;
 
 	pmove->player_index = ps->number - 1;
+
+	// a1ba: workaround bug on old protocol where the server refuse to send
+	// our local player in delta. cl.playernum, in theory, must be equal
+	// to our local player index anyway
+	// this might not be a real solution, since everything else will be bogus
+	// but we need to properly run prediction and avoid potential memory
+	// corruption
+	// either debug this, or remove when old protocol will be dropped!!!
+	if( pmove->player_index < 0 )
+	{
+		if( cls.legacymode )
+		{
+			pmove->player_index = bound( 0, cl.playernum, cl.maxclients - 1 );
+		}
+		else
+		{
+			// if this happens, record a demo and send it to a1ba
+			Host_Error( "%s: ps->number == %d\n", __func__, ps->number );
+		}
+	}
+
 	pmove->multiplayer = (cl.maxclients > 1);
 	pmove->runfuncs = runfuncs;
 	pmove->time = time * 1000.0f;

engine/client/cl_render.c

@@ -142,8 +142,6 @@ intptr_t CL_RenderGetParm( const int parm, const int arg, const qboolean checkRe
 		return 1;
 #endif
 		return 0;
-	case PARM_SKY_SPHERE:
-		return FBitSet( world.flags, FWORLD_SKYSPHERE ) && !FBitSet( world.flags, FWORLD_CUSTOM_SKYBOX );
 	case PARAM_GAMEPAUSED:
 		return cl.paused;
 	case PARM_CLIENT_INGAME:
@@ -187,26 +185,30 @@ intptr_t CL_RenderGetParm( const int parm, const int arg, const qboolean checkRe
 			return CL_IsThirdPerson();
 		case PARM_QUAKE_COMPATIBLE:
 			return Host_IsQuakeCompatible();
-		case PARM_PLAYER_INDEX:
-			return cl.playernum + 1;
-		case PARM_VIEWENT_INDEX:
-			return cl.viewentity;
 		case PARM_CONNSTATE:
 			return (int)cls.state;
 		case PARM_PLAYING_DEMO:
 			return cls.demoplayback;
 		case PARM_WATER_LEVEL:
 			return cl.local.waterlevel;
-		case PARM_MAX_CLIENTS:
-			return cl.maxclients;
 		case PARM_LOCAL_HEALTH:
 			return cl.local.health;
 		case PARM_LOCAL_GAME:
 			return Host_IsLocalGame();
 		case PARM_NUMENTITIES:
 			return pfnNumberOfEntities();
-		case PARM_NUMMODELS:
-			return cl.nummodels;
+		case PARM_GET_CLIENT_PTR:
+			return (intptr_t)&cl.time; // with the offset
+		case PARM_GET_HOST_PTR:
+			return (intptr_t)&host.realtime; // with the offset
+		case PARM_GET_WORLD_PTR:
+			return (intptr_t)&world;
+		case PARM_GET_MOVEVARS_PTR:
+			return (intptr_t)&clgame.movevars;
+		case PARM_GET_PALETTE_PTR:
+			return (intptr_t)&clgame.palette;
+		case PARM_GET_VIEWENT_PTR:
+			return (intptr_t)&clgame.viewent;
 		}
 	}
 	return 0;

engine/client/cl_tent.c

@@ -2624,7 +2624,7 @@ CL_UpdateFlashlight
 update client flashlight
 ================
 */
-void CL_UpdateFlashlight( cl_entity_t *ent )
+static void CL_UpdateFlashlight( cl_entity_t *ent )
 {
 	vec3_t		forward, view_ofs;
 	vec3_t		vecSrc, vecEnd;
@@ -2684,6 +2684,41 @@ void CL_UpdateFlashlight( cl_entity_t *ent )
 	dl->radius = 80;
 }
 
+static void R_EntityDimlight( cl_entity_t *ent, int key )
+{
+	dlight_t *dl = CL_AllocDlight( key );
+
+	VectorCopy( ent->origin, dl->origin );
+	dl->color.r = dl->color.g = dl->color.b = 100;
+	dl->radius = COM_RandomFloat( 200.0f, 231.0f );
+	dl->die = cl.time + 0.001;
+}
+
+static void R_EntityLight( cl_entity_t *ent, int key )
+{
+	dlight_t *dl = CL_AllocDlight( key );
+
+	VectorCopy( ent->origin, dl->origin );
+	dl->color.r = dl->color.g = dl->color.b = 100;
+	dl->radius = 200;
+	dl->die = cl.time + 0.001;
+
+	R_RocketFlare( ent->origin );
+}
+
+static void R_EntityBrightlight( cl_entity_t *ent, int key, int radius )
+{
+	dlight_t *dl = CL_AllocDlight( key );
+
+	VectorCopy( ent->origin, dl->origin );
+	dl->origin[2] += 16.0f;
+	dl->color.r = dl->color.g = dl->color.b = 250;
+	if( !radius )
+		dl->radius = COM_RandomFloat( 400.0f, 431.0f );
+	else dl->radius = 400;
+	dl->die = cl.time + 0.001;
+}
+
 /*
 ================
 CL_AddEntityEffects
@@ -2693,50 +2728,41 @@ apply various effects to entity origin or attachment
 */
 void CL_AddEntityEffects( cl_entity_t *ent )
 {
-	// yellow flies effect 'monster stuck in the wall'
-	if( FBitSet( ent->curstate.effects, EF_BRIGHTFIELD ) && !RP_LOCALCLIENT( ent ))
-		R_EntityParticles( ent );
-
-	if( FBitSet( ent->curstate.effects, EF_DIMLIGHT ))
+	// players have special set of effects, from CL_LinkPlayers
+	if( ent->player && ent->index != cl.viewentity )
 	{
-		if( ent->player && !Host_IsQuakeCompatible( ))
-		{
+		if( FBitSet( ent->curstate.effects, EF_BRIGHTLIGHT ))
+			R_EntityBrightlight( ent, ent->index /* 4 in GoldSrc */, 0 );
+
+		if( FBitSet( ent->curstate.effects, EF_DIMLIGHT ))
+			R_EntityDimlight( ent, ent->index /* 4 in GoldSrc */ );
+	}
+	else if( RP_LOCALCLIENT( ent ))
+	{
+		// from CL_PlayerFlashlight
+		if( FBitSet( ent->curstate.effects, EF_BRIGHTLIGHT ))
+			R_EntityBrightlight( ent, ent->index /* 1 in GoldSrc */, 400 );
+		else if( FBitSet( ent->curstate.effects, EF_DIMLIGHT ))
 			CL_UpdateFlashlight( ent );
-		}
-		else
-		{
-			dlight_t	*dl = CL_AllocDlight( ent->index );
-			dl->color.r = dl->color.g = dl->color.b = 100;
-			dl->radius = COM_RandomFloat( 200, 231 );
-			VectorCopy( ent->origin, dl->origin );
-			dl->die = cl.time + 0.001;
-		}
 	}
-
-	if( FBitSet( ent->curstate.effects, EF_BRIGHTLIGHT ))
+	else
 	{
-		dlight_t	*dl = CL_AllocDlight( ent->index );
-		dl->color.r = dl->color.g = dl->color.b = 250;
-		if( ent->player ) dl->radius = 400; // don't flickering
-		else dl->radius = COM_RandomFloat( 400, 431 );
-		VectorCopy( ent->origin, dl->origin );
-		dl->die = cl.time + 0.001;
-		dl->origin[2] += 16.0f;
-	}
+		// from CL_LinkPacketEntities
+		if( FBitSet( ent->curstate.effects, EF_BRIGHTFIELD ))
+			R_EntityParticles( ent );
 
-	// add light effect
-	if( FBitSet( ent->curstate.effects, EF_LIGHT ))
-	{
-		dlight_t	*dl = CL_AllocDlight( ent->index );
-		dl->color.r = dl->color.g = dl->color.b = 100;
-		VectorCopy( ent->origin, dl->origin );
-		R_RocketFlare( ent->origin );
-		dl->die = cl.time + 0.001;
-		dl->radius = 200;
+		if( FBitSet( ent->curstate.effects, EF_BRIGHTLIGHT ))
+			R_EntityBrightlight( ent, ent->index, 0 );
+
+		if( FBitSet( ent->curstate.effects, EF_DIMLIGHT ))
+			R_EntityDimlight( ent, ent->index );
+
+		if( FBitSet( ent->curstate.effects, EF_LIGHT ))
+			R_EntityLight( ent, ent->curstate.number );
 	}
 
 	// studio models are handle muzzleflashes difference
-	if( FBitSet( ent->curstate.effects, EF_MUZZLEFLASH ) && Mod_AliasExtradata( ent->model ))
+	if( FBitSet( ent->curstate.effects, EF_MUZZLEFLASH ) && ent->model && ent->model->type == mod_alias )
 	{
 		dlight_t	*dl = CL_AllocDlight( ent->index );
 		vec3_t	fv;
@@ -2765,15 +2791,11 @@ void CL_AddModelEffects( cl_entity_t *ent )
 	vec3_t	neworigin;
 	vec3_t	oldorigin;
 
-	if( !ent->model ) return;
+	if( !ent->model || ent->player )
+		return;
 
-	switch( ent->model->type )
-	{
-	case mod_alias:
-	case mod_studio:
-		break;
-	default:	return;
-	}
+	if( ent->model->type != mod_alias && ent->model->type != mod_studio )
+		return;
 
 	if( cls.demoplayback == DEMO_QUAKE1 )
 	{
@@ -2793,19 +2815,15 @@ void CL_AddModelEffects( cl_entity_t *ent )
 
 	if( FBitSet( ent->model->flags, STUDIO_GIB ))
 		R_RocketTrail( oldorigin, neworigin, 2 );
-
-	if( FBitSet( ent->model->flags, STUDIO_ZOMGIB ))
+	else if( FBitSet( ent->model->flags, STUDIO_ZOMGIB ))
 		R_RocketTrail( oldorigin, neworigin, 4 );
-
-	if( FBitSet( ent->model->flags, STUDIO_TRACER ))
+	else if( FBitSet( ent->model->flags, STUDIO_TRACER ))
 		R_RocketTrail( oldorigin, neworigin, 3 );
-
-	if( FBitSet( ent->model->flags, STUDIO_TRACER2 ))
+	else if( FBitSet( ent->model->flags, STUDIO_TRACER2 ))
 		R_RocketTrail( oldorigin, neworigin, 5 );
-
-	if( FBitSet( ent->model->flags, STUDIO_ROCKET ))
+	else if( FBitSet( ent->model->flags, STUDIO_ROCKET ))
 	{
-		dlight_t	*dl = CL_AllocDlight( ent->index );
+		dlight_t	*dl = CL_AllocDlight( ent->curstate.number );
 
 		dl->color.r = dl->color.g = dl->color.b = 200;
 		VectorCopy( ent->origin, dl->origin );
@@ -2819,11 +2837,9 @@ void CL_AddModelEffects( cl_entity_t *ent )
 
 		R_RocketTrail( oldorigin, neworigin, 0 );
 	}
-
-	if( FBitSet( ent->model->flags, STUDIO_GRENADE ))
+	else if( FBitSet( ent->model->flags, STUDIO_GRENADE ))
 		R_RocketTrail( oldorigin, neworigin, 1 );
-
-	if( FBitSet( ent->model->flags, STUDIO_TRACER3 ))
+	else if( FBitSet( ent->model->flags, STUDIO_TRACER3 ))
 		R_RocketTrail( oldorigin, neworigin, 6 );
 }
 

engine/client/cl_tent.h

@@ -81,7 +81,6 @@ void R_DebugParticle( const vec3_t pos, byte r, byte g, byte b );
 void R_RicochetSound( const vec3_t pos );
 struct dlight_s *CL_AllocDlight( int key );
 struct dlight_s *CL_AllocElight( int key );
-void CL_UpdateFlashlight( cl_entity_t *pEnt );
 void CL_AddEntityEffects( cl_entity_t *ent );
 void CL_AddModelEffects( cl_entity_t *ent );
 void CL_DecalShoot( int textureIndex, int entityIndex, int modelIndex, float *pos, int flags );

engine/client/cl_view.c

@@ -549,5 +549,6 @@ void V_PostRender( void )
 
 	SCR_MakeScreenShot();
 	ref.dllFuncs.R_AllowFog( true );
+	Platform_SetTimer( 0.0f );
 	ref.dllFuncs.R_EndFrame();
 }

engine/client/client.h

@@ -174,6 +174,26 @@ typedef struct
 // at every server map change
 typedef struct
 {
+	// ==== shared through RefAPI's ref_client_t ====
+	double		time;			// this is the time value that the client
+						// is rendering at.  always <= cls.realtime
+						// a lerp point for other data
+	double		oldtime;			// previous cl.time, time-oldtime is used
+						// to decay light values and smooth step ups
+	int		viewentity;
+
+	// server state information
+	int		playernum;
+	int		maxclients;
+
+	int		nummodels;
+	model_t		*models[MAX_MODELS+1];		// precached models (plus sentinel slot)
+
+	qboolean	paused;
+
+	vec3_t		simorg;			// predicted origin
+	// ==== shared through RefAPI's ref_client_t ===
+
 	int		servercount;		// server identification for prespawns
 	int		validsequence;		// this is the sequence number of the last good
 						// world snapshot/update we got.  If this is 0, we can't
@@ -183,7 +203,6 @@ typedef struct
 
 	qboolean		video_prepped;		// false if on new level or new ref dll
 	qboolean		audio_prepped;		// false if on new level or new snd dll
-	qboolean		paused;
 
 	int		delta_sequence;		// acknowledged sequence number
 
@@ -205,11 +224,6 @@ typedef struct
 	runcmd_t		commands[MULTIPLAYER_BACKUP];		// each mesage will send several old cmds
 	local_state_t	predicted_frames[MULTIPLAYER_BACKUP];	// local client state
 
-	double		time;			// this is the time value that the client
-						// is rendering at.  always <= cls.realtime
-						// a lerp point for other data
-	double		oldtime;			// previous cl.time, time-oldtime is used
-						// to decay light values and smooth step ups
 	double		timedelta;		// floating delta between two updates
 
 	char		serverinfo[MAX_SERVERINFO_STRING];
@@ -223,7 +237,6 @@ typedef struct
 
 	// player final info
 	usercmd_t		*cmd;			// cl.commands[outgoing_sequence].cmd
-	int		viewentity;
 	vec3_t		viewangles;
 	vec3_t		viewheight;
 	vec3_t		punchangle;
@@ -236,14 +249,9 @@ typedef struct
 	float		addangletotal;
 	float		prevaddangletotal;
 
-	// predicted origin and velocity
-	vec3_t		simorg;
+	// predicted velocity
 	vec3_t		simvel;
 
-	// server state information
-	int		playernum;
-	int		maxclients;
-
 	entity_state_t	instanced_baseline[MAX_CUSTOM_BASELINES];
 	int		instanced_baseline_count;
 
@@ -251,8 +259,6 @@ typedef struct
 	char		event_precache[MAX_EVENTS][MAX_QPATH];
 	char		files_precache[MAX_CUSTOM][MAX_QPATH];
 	lightstyle_t	lightstyles[MAX_LIGHTSTYLES];
-	model_t		*models[MAX_MODELS+1];		// precached models (plus sentinel slot)
-	int		nummodels;
 	int		numfiles;
 
 	consistency_t	consistency_list[MAX_MODELS];
@@ -694,6 +700,7 @@ extern convar_t	rate;
 extern convar_t	m_ignore;
 extern convar_t	r_showtree;
 extern convar_t	ui_renderworld;
+extern convar_t cl_fixmodelinterpolationartifacts;
 
 //=============================================================================
 

engine/client/ref_common.c

@@ -18,6 +18,31 @@ CVAR_DEFINE_AUTO( r_showtree, "0", FCVAR_ARCHIVE, "build the graph of visible BS
 static CVAR_DEFINE_AUTO( r_refdll, "", FCVAR_RENDERINFO, "choose renderer implementation, if supported" );
 static CVAR_DEFINE_AUTO( r_refdll_loaded, "", FCVAR_READ_ONLY, "currently loaded renderer" );
 
+// there is no need to expose whole host and cl structs into the renderer
+// but we still need to update timings accurately as possible
+// this looks horrible but the only other option would be passing four
+// time pointers and then it's looks even worse with dereferences everywhere
+#define STATIC_OFFSET_CHECK( s1, s2, field, base, msg ) \
+	STATIC_ASSERT( offsetof( s1, field ) == offsetof( s2, field ) - offsetof( s2, base ), msg )
+#define REF_CLIENT_CHECK( field ) \
+	STATIC_OFFSET_CHECK( ref_client_t, client_t, field, time, "broken ref_client_t offset" ); \
+	STATIC_ASSERT_( szchk_##__LINE__, sizeof(((ref_client_t *)0)->field ) == sizeof( cl.field ), "broken ref_client_t size" )
+#define REF_HOST_CHECK( field ) \
+	STATIC_OFFSET_CHECK( ref_host_t, host_parm_t, field, realtime, "broken ref_client_t offset" ); \
+	STATIC_ASSERT_( szchk_##__LINE__, sizeof(((ref_host_t *)0)->field ) == sizeof( host.field ), "broken ref_client_t size" )
+
+REF_CLIENT_CHECK( time );
+REF_CLIENT_CHECK( oldtime );
+REF_CLIENT_CHECK( viewentity );
+REF_CLIENT_CHECK( playernum );
+REF_CLIENT_CHECK( maxclients );
+REF_CLIENT_CHECK( models );
+REF_CLIENT_CHECK( paused );
+REF_CLIENT_CHECK( simorg );
+REF_HOST_CHECK( realtime );
+REF_HOST_CHECK( frametime );
+REF_HOST_CHECK( features );
+
 void R_GetTextureParms( int *w, int *h, int texnum )
 {
 	if( w ) *w = REF_GET_PARM( PARM_TEX_WIDTH, texnum );
@@ -42,18 +67,8 @@ void GAME_EXPORT GL_FreeImage( const char *name )
 		 ref.dllFuncs.GL_FreeTexture( texnum );
 }
 
-void R_UpdateRefState( void )
-{
-	refState.time      = cl.time;
-	refState.oldtime   = cl.oldtime;
-	refState.realtime  = host.realtime;
-	refState.frametime = host.frametime;
-}
-
 void GL_RenderFrame( const ref_viewpass_t *rvp )
 {
-	R_UpdateRefState();
-
 	VectorCopy( rvp->vieworigin, refState.vieworg );
 	VectorCopy( rvp->viewangles, refState.viewangles );
 
@@ -65,11 +80,6 @@ static intptr_t pfnEngineGetParm( int parm, int arg )
 	return CL_RenderGetParm( parm, arg, false ); // prevent recursion
 }
 
-static world_static_t *pfnGetWorld( void )
-{
-	return &world;
-}
-
 static void pfnStudioEvent( const mstudioevent_t *event, const cl_entity_t *e )
 {
 	clgame.dllFuncs.pfnStudioEvent( event, e );
@@ -99,16 +109,6 @@ static void *pfnMod_Extradata( int type, model_t *m )
 	return NULL;
 }
 
-static void pfnGetPredictedOrigin( vec3_t v )
-{
-	VectorCopy( cl.simorg, v );
-}
-
-static color24 *pfnCL_GetPaletteColor( void ) // clgame.palette[color]
-{
-	return clgame.palette;
-}
-
 static void pfnCL_GetScreenInfo( int *width, int *height ) // clgame.scrInfo, ptrs may be NULL
 {
 	if( width ) *width = clgame.scrInfo.iWidth;
@@ -207,11 +207,6 @@ static qboolean R_Init_Video_( const int type )
 	return R_Init_Video( type );
 }
 
-static model_t **pfnGetModels( void )
-{
-	return cl.models;
-}
-
 static ref_api_t gEngfuncs =
 {
 	pfnEngineGetParm,
@@ -246,14 +241,12 @@ static ref_api_t gEngfuncs =
 	Con_DrawString,
 	CL_DrawCenterPrint,
 
-	CL_GetViewModel,
 	R_BeamGetEntity,
 	CL_GetWaterEntity,
 	CL_AddVisibleEntity,
 
 	Mod_SampleSizeForFace,
 	Mod_BoxVisible,
-	pfnGetWorld,
 	Mod_PointInLeaf,
 	Mod_CreatePolygonsForHull,
 
@@ -270,7 +263,6 @@ static ref_api_t gEngfuncs =
 
 	Mod_ForName,
 	pfnMod_Extradata,
-	pfnGetModels,
 
 	CL_EntitySetRemapColors,
 	CL_GetRemapInfoForEntity,
@@ -281,8 +273,6 @@ static ref_api_t gEngfuncs =
 	COM_RandomFloat,
 	COM_RandomLong,
 	pfnRefGetScreenFade,
-	pfnGetPredictedOrigin,
-	pfnCL_GetPaletteColor,
 	pfnCL_GetScreenInfo,
 	pfnSetLocalLightLevel,
 	Sys_CheckParm,
@@ -332,7 +322,6 @@ static ref_api_t gEngfuncs =
 	PM_CL_TraceLine,
 	CL_VisTraceLine,
 	CL_TraceLine,
-	pfnGetMoveVars,
 
 	Image_AddCmdFlags,
 	Image_SetForceFlags,

engine/client/ref_common.h

@@ -52,7 +52,6 @@ extern convar_t gl_clear;
 
 qboolean R_Init( void );
 void R_Shutdown( void );
-void R_UpdateRefState( void );
 
 extern triangleapi_t gTriApi;
 

engine/common/common.h

@@ -302,8 +302,12 @@ typedef struct host_parm_s
 	int		argc;
 	char	**argv;
 
+	// ==== shared through RefAPI's ref_host_t
 	double		realtime;		// host.curtime
 	double		frametime;	// time between engine frames
+	uint		features;		// custom features that enables by mod-maker request
+	// ==== shared through RefAPI's ref_host_t
+
 	double		realframetime;	// for some system events, e.g. console animations
 
 	uint		framecount;	// global framecount
@@ -344,8 +348,6 @@ typedef struct host_parm_s
 	poolhandle_t imagepool;	// imagelib mempool
 	poolhandle_t soundpool;	// soundlib mempool
 
-	uint		features;		// custom features that enables by mod-maker request
-
 	// for IN_MouseMove() easy access
 	int		window_center_x;
 	int		window_center_y;
@@ -422,8 +424,8 @@ void Cmd_Escape( char *newCommand, const char *oldCommand, int len );
 // zone.c
 //
 void Memory_Init( void );
-void *_Mem_Realloc( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline );
-void *_Mem_Alloc( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline );
+void *_Mem_Realloc( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 3 );
+void *_Mem_Alloc( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 2 );
 poolhandle_t _Mem_AllocPool( const char *name, const char *filename, int fileline );
 void _Mem_FreePool( poolhandle_t *poolptr, const char *filename, int fileline );
 void _Mem_EmptyPool( poolhandle_t poolptr, const char *filename, int fileline );
@@ -552,7 +554,7 @@ qboolean Host_IsLocalGame( void );
 qboolean Host_IsLocalClient( void );
 void Host_ShutdownServer( void );
 void Host_Error( const char *error, ... ) _format( 1 );
-void Host_PrintEngineFeatures( void );
+void Host_ValidateEngineFeatures( uint32_t features );
 void Host_Frame( float time );
 void Host_InitDecals( void );
 void Host_Credits( void );
@@ -793,7 +795,7 @@ void VID_Init( void );
 void UI_SetActiveMenu( qboolean fActive );
 void UI_ShowConnectionWarning( void );
 void Cmd_Null_f( void );
-void Rcon_Print( const char *pMsg );
+void Rcon_Print( host_redirect_t *rd, const char *pMsg );
 qboolean COM_ParseVector( char **pfile, float *v, size_t size );
 void COM_NormalizeAngles( vec3_t angles );
 int COM_FileSize( const char *filename );

engine/common/crashhandler.c

@@ -490,7 +490,7 @@ static void Sys_Crash( int signal, siginfo_t *si, void *context)
 #ifdef XASH_SDL
 	SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif
-	MSGBOX( message );
+	Platform_MessageBox( "Xash Error", message, false );
 
 	// log saved, now we can try to save configs and close log correctly, it may crash
 	if( host.type == HOST_NORMAL )

engine/common/host.c

@@ -62,6 +62,7 @@ CVAR_DEFINE_AUTO( host_limitlocal, "0", 0, "apply cl_cmdrate and rate to loopbac
 CVAR_DEFINE( host_maxfps, "fps_max", "72", FCVAR_ARCHIVE|FCVAR_FILTERABLE, "host fps upper limit" );
 static CVAR_DEFINE_AUTO( host_framerate, "0", FCVAR_FILTERABLE, "locks frame timing to this value in seconds" );
 static CVAR_DEFINE( host_sleeptime, "sleeptime", "1", FCVAR_ARCHIVE|FCVAR_FILTERABLE, "milliseconds to sleep for each frame. higher values reduce fps accuracy" );
+static CVAR_DEFINE_AUTO( host_sleeptime_debug, "0", 0, "print sleeps between frames" );
 CVAR_DEFINE( con_gamemaps, "con_mapfilter", "1", FCVAR_ARCHIVE, "when true show only maps in game folder" );
 
 void Sys_PrintUsage( void )
@@ -189,22 +190,66 @@ void Host_ShutdownServer( void )
 Host_PrintEngineFeatures
 ================
 */
-void Host_PrintEngineFeatures( void )
+static void Host_PrintEngineFeatures( int features )
 {
-	if( FBitSet( host.features, ENGINE_WRITE_LARGE_COORD ))
-		Con_Reportf( "^3EXT:^7 big world support enabled\n" );
+	struct
+	{
+		uint32_t mask;
+		const char *msg;
+	} features_str[] =
+	{
+	{ ENGINE_WRITE_LARGE_COORD, "Big World Support" },
+	{ ENGINE_QUAKE_COMPATIBLE, "Quake Compatibility" },
+	{ ENGINE_LOAD_DELUXEDATA, "Deluxemap Support" },
+	{ ENGINE_PHYSICS_PUSHER_EXT, "Improved MOVETYPE_PUSH" },
+	{ ENGINE_LARGE_LIGHTMAPS, "Large Lightmaps" },
+	{ ENGINE_COMPENSATE_QUAKE_BUG, "Stupid Quake Bug Compensation" },
+	{ ENGINE_IMPROVED_LINETRACE, "Improved Trace Line" },
+	{ ENGINE_COMPUTE_STUDIO_LERP, "Studio MOVETYPE_STEP Lerping" },
+	{ ENGINE_LINEAR_GAMMA_SPACE, "Linear Gamma Space" },
+	{ ENGINE_STEP_POSHISTORY_LERP, "MOVETYPE_STEP Position History Based Lerping" },
+	};
+	int i;
 
-	if( FBitSet( host.features, ENGINE_LOAD_DELUXEDATA ))
-		Con_Reportf( "^3EXT:^7 deluxemap support enabled\n" );
+	for( i = 0; i < ARRAYSIZE( features_str ); i++ )
+	{
+		if( FBitSet( features, features_str[i].mask ))
+			Con_Reportf( "^3EXT:^7 %s is enabled\n", features_str[i].msg );
+	}
+}
 
-	if( FBitSet( host.features, ENGINE_PHYSICS_PUSHER_EXT ))
-		Con_Reportf( "^3EXT:^7 Improved MOVETYPE_PUSH is used\n" );
+/*
+==============
+Host_ValidateEngineFeatures
 
-	if( FBitSet( host.features, ENGINE_LARGE_LIGHTMAPS ))
-		Con_Reportf( "^3EXT:^7 Large lightmaps enabled\n" );
+validate features bits and set host.features
+==============
+*/
+void Host_ValidateEngineFeatures( uint32_t features )
+{
+	uint32_t mask = ENGINE_FEATURES_MASK;
 
-	if( FBitSet( host.features, ENGINE_COMPENSATE_QUAKE_BUG ))
-		Con_Reportf( "^3EXT:^7 Compensate quake bug enabled\n" );
+#if !HOST_DEDICATED
+	if( !Host_IsDedicated( ) && cls.legacymode )
+		mask = ENGINE_LEGACY_FEATURES_MASK;
+#endif
+
+	// don't allow unsupported bits
+	features &= mask;
+
+	// force bits for some games
+	if( !Q_stricmp( GI->gamefolder, "cstrike" ) || !Q_stricmp( GI->gamefolder, "czero" ))
+		SetBits( features, ENGINE_STEP_POSHISTORY_LERP );
+
+	// print requested first
+	Host_PrintEngineFeatures( features );
+
+	// now warn about incompatible bits
+	if( FBitSet( features, ENGINE_STEP_POSHISTORY_LERP|ENGINE_COMPUTE_STUDIO_LERP ) == ( ENGINE_STEP_POSHISTORY_LERP|ENGINE_COMPUTE_STUDIO_LERP ))
+		Con_Printf( S_WARN "%s: incompatible ENGINE_STEP_POSHISTORY_LERP and ENGINE_COMPUTE_STUDIO_LERP are enabled!\n", __func__ );
+
+	// finally set global variable
+	host.features = features;
 }
 
 /*
@@ -618,6 +663,84 @@ double Host_CalcFPS( void )
 	return fps;
 }
 
+static qboolean Host_Autosleep( double dt, double scale )
+{
+	double targetframetime, fps;
+	int sleep;
+
+	fps = Host_CalcFPS();
+
+	if( fps <= 0 )
+		return true;
+
+	// limit fps to withing tolerable range
+	fps = bound( MIN_FPS, fps, MAX_FPS );
+
+	if( Host_IsDedicated( ))
+		targetframetime = ( 1.0 / ( fps + 1.0 ));
+	else targetframetime = ( 1.0 / fps );
+
+	sleep = Host_CalcSleep();
+	if( sleep == 0 ) // no sleeps between frames, much simpler code
+	{
+		if( dt < targetframetime * scale )
+			return false;
+	}
+	else
+	{
+		static double timewindow; // allocate a time window for sleeps
+		static int counter; // for debug
+		static double realsleeptime;
+		const double sleeptime = sleep * 0.001;
+
+		if( dt < targetframetime * scale )
+		{
+			// if we have allocated time window, try to sleep
+			if( timewindow > realsleeptime )
+			{
+				// Sys_Sleep isn't guaranteed to sleep an exact amount of milliseconds
+				// so we measure the real sleep time and use it to decrease the window
+				double t1 = Sys_DoubleTime(), t2;
+				Sys_Sleep( sleep ); // in msec!
+				t2 = Sys_DoubleTime();
+				realsleeptime = t2 - t1;
+
+				timewindow -= realsleeptime;
+
+				if( host_sleeptime_debug.value )
+				{
+					counter++;
+
+					Con_NPrintf( counter, "%d: %.4f %.4f", counter, timewindow, realsleeptime );
+				}
+			}
+
+			return false;
+		}
+
+		// if we exhausted this time window, allocate a new one after new frame
+		if( timewindow <= realsleeptime )
+		{
+			double targetsleeptime = targetframetime - host.pureframetime * 2;
+
+			if( targetsleeptime > 0 )
+				timewindow = targetsleeptime;
+			else timewindow = 0;
+
+			realsleeptime = sleeptime; // reset in case CPU was too busy
+
+			if( host_sleeptime_debug.value )
+			{
+				counter = 0;
+
+				Con_NPrintf( 0, "tgt = %.4f, pft = %.4f, wnd = %.4f", targetframetime, host.pureframetime, timewindow );
+			}
+		}
+	}
+
+	return true;
+}
+
 /*
 ===================
 Host_FilterTime
@@ -628,55 +751,15 @@ Returns false if the time is too short to run a frame
 qboolean Host_FilterTime( float time )
 {
 	static double	oldtime;
-	double fps, scale = sys_timescale.value;
+	double dt;
+	double scale = sys_timescale.value;
 
 	host.realtime += time * scale;
-	fps = Host_CalcFPS();
+	dt = host.realtime - oldtime;
 
 	// clamp the fps in multiplayer games
-	if( fps != 0.0 )
-	{
-		static int sleeps;
-		double targetframetime;
-		int sleeptime = Host_CalcSleep();
-
-		// limit fps to withing tolerable range
-		fps = bound( MIN_FPS, fps, MAX_FPS );
-
-		if( Host_IsDedicated( ))
-			targetframetime = ( 1.0 / ( fps + 1.0 ));
-		else targetframetime = ( 1.0 / fps );
-
-		if(( host.realtime - oldtime ) < targetframetime * scale )
-		{
-			if( sleeptime > 0 && sleeps > 0 )
-			{
-				Sys_Sleep( sleeptime );
-				sleeps--;
-			}
-
-			return false;
-		}
-
-		if( sleeptime > 0 && sleeps <= 0 )
-		{
-			if( host.status == HOST_FRAME )
-			{
-				// give few sleeps this frame with small margin
-				double targetsleeptime = targetframetime - host.pureframetime * 2;
-
-				// don't sleep if we can't keep up with the framerate
-				if( targetsleeptime > 0 )
-					sleeps = targetsleeptime / ( sleeptime * 0.001 );
-				else sleeps = 0;
-			}
-			else
-			{
-				// always sleep at least once in minimized/nofocus state
-				sleeps = 1;
-			}
-		}
-	}
+	if( !Host_Autosleep( dt, scale ))
+		return false;
 
 	host.frametime = host.realtime - oldtime;
 	host.realframetime = bound( MIN_FRAMETIME, host.frametime, MAX_FRAMETIME );
@@ -756,7 +839,7 @@ void GAME_EXPORT Host_Error( const char *error, ... )
 			Key_SetKeyDest( key_console );
 			Con_Printf( "Host_Error: %s", hosterror1 );
 		}
-		else MSGBOX2( hosterror1 );
+		else Platform_MessageBox( "Host Error", hosterror1, true );
 	}
 
 	// host is shutting down. don't invoke infinite loop
@@ -1181,6 +1264,7 @@ int EXPORT Host_Main( int argc, char **argv, const char *progname, int bChangeGa
 	Cvar_RegisterVariable( &host_maxfps );
 	Cvar_RegisterVariable( &host_framerate );
 	Cvar_RegisterVariable( &host_sleeptime );
+	Cvar_RegisterVariable( &host_sleeptime_debug );
 	Cvar_RegisterVariable( &host_gameloaded );
 	Cvar_RegisterVariable( &host_clientloaded );
 	Cvar_RegisterVariable( &host_limitlocal );
@@ -1297,6 +1381,8 @@ Host_Shutdown
 */
 void EXPORT Host_Shutdown( void )
 {
+	qboolean error = host.status == HOST_ERR_FATAL;
+
 	if( host.shutdown_issued ) return;
 	host.shutdown_issued = true;
 
@@ -1304,7 +1390,7 @@ void EXPORT Host_Shutdown( void )
 	if( !host.change_game ) Q_strncpy( host.finalmsg, "Server shutdown", sizeof( host.finalmsg ));
 
 #if !XASH_DEDICATED
-	if( host.type == HOST_NORMAL )
+	if( host.type == HOST_NORMAL && !error )
 		Host_WriteConfig();
 #endif
 

engine/common/imagelib/img_ktx2.c

@@ -87,6 +87,12 @@ static qboolean Image_KTX2Parse( const ktx2_header_t *header, const byte *buffer
 		return false;
 	}
 
+	if( header->levelCount == 0 )
+	{
+		Con_DPrintf( S_ERROR "%s: file has no mip levels\n", __FUNCTION__ );
+		return false;
+	}
+
 	if( header->pixelDepth > 1 )
 	{
 		Con_DPrintf( S_ERROR "%s: unsupported KTX2 pixelDepth %d\n", __FUNCTION__, header->pixelDepth );

engine/common/launcher.c

@@ -13,17 +13,15 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */
 
-#ifdef SINGLE_BINARY
-
-#include "build.h"
-#include "common.h"
-#ifdef XASH_SDLMAIN
-#include "SDL.h"
+#if XASH_ENABLE_MAIN
+#if XASH_SDLMAIN
+#include <SDL.h>
 #endif
-
 #if XASH_EMSCRIPTEN
 #include <emscripten.h>
 #endif
+#include "build.h"
+#include "common.h"
 
 #define E_GAME	"XASH3D_GAME" // default env dir to start from
 #ifndef XASH_GAMEDIR
@@ -47,40 +45,35 @@ static void Sys_ChangeGame( const char *progname )
 	exit( Host_Main( szArgc, szArgv, szGameDir, 1, &Sys_ChangeGame ) );
 }
 
-_inline int Sys_Start( void )
+static int Sys_Start( void )
 {
-	int ret;
 	const char *game = getenv( E_GAME );
 
 	if( !game )
 		game = XASH_GAMEDIR;
 
 	Q_strncpy( szGameDir, game, sizeof( szGameDir ));
+
 #if XASH_EMSCRIPTEN
 #ifdef EMSCRIPTEN_LIB_FS
 	// For some unknown reason emscripten refusing to load libraries later
-	COM_LoadLibrary("menu", 0 );
-	COM_LoadLibrary("server", 0 );
-	COM_LoadLibrary("client", 0 );
+	COM_LoadLibrary( "menu", 0 );
+	COM_LoadLibrary( "server", 0 );
+	COM_LoadLibrary( "client", 0 );
 #endif
 #if XASH_DEDICATED
 	// NodeJS support for debug
-	EM_ASM(try{
-		FS.mkdir('/xash');
-		FS.mount(NODEFS, { root: '.'}, '/xash' );
-		FS.chdir('/xash');
-	}catch(e){};);
+	EM_ASM(try {
+		FS.mkdir( '/xash' );
+		FS.mount( NODEFS, { root: '.'}, '/xash' );
+		FS.chdir( '/xash' );
+	} catch( e ) { };);
 #endif
 #elif XASH_IOS
-	{
-		void IOS_LaunchDialog( void );
-		IOS_LaunchDialog();
-	}
+	IOS_LaunchDialog();
 #endif
 
-	ret = Host_Main( szArgc, szArgv, game, 0, Sys_ChangeGame );
-
-	return ret;
+	return Host_Main( szArgc, szArgv, game, 0, Sys_ChangeGame );
 }
 
 int main( int argc, char **argv )
@@ -94,4 +87,4 @@ int main( int argc, char **argv )
 #endif // XASH_PSVITA
 	return Sys_Start();
 }
-#endif // SINGLE_BINARY
+#endif // XASH_ENABLE_MAIN

engine/common/mod_bmodel.c

@@ -2998,6 +2998,7 @@ static qboolean Mod_LoadBmodelLumps( model_t *mod, const byte *mod_base, qboolea
 
 	if( isworld )
 	{
+		world.version = bmod->version;
 #if !XASH_DEDICATED
 		Mod_InitDebugHulls( mod );	// FIXME: build hulls for separate bmodels (shells, medkits etc)
 		world.deluxedata = bmod->deluxedata_out;	// deluxemap data pointer

engine/common/mod_local.h

@@ -113,6 +113,8 @@ typedef struct world_static_s
 	// tree visualization stuff
 	int		recursion_level;
 	int		max_recursion;
+
+	uint32_t version; // BSP version
 } world_static_t;
 
 #ifndef REF_DLL

engine/common/model.c

@@ -111,6 +111,7 @@ void Mod_FreeModel( model_t *mod )
 
 	if( mod->type == mod_brush && FBitSet( mod->flags, MODEL_WORLD ) )
 	{
+		world.version = 0;
 		world.shadowdata = NULL;
 		world.deluxedata = NULL;
 	}

engine/common/protocol.h

@@ -305,6 +305,14 @@ extern const char	*clc_strings[clc_lastmsg+1];
 #define MAX_LEGACY_EDICTS (1 << MAX_LEGACY_ENTITY_BITS) // 4096 edicts
 #define MIN_LEGACY_EDICTS 30
 
+// legacy engine features that can be implemented through currently supported features
+#define ENGINE_LEGACY_FEATURES_MASK   \
+	( ENGINE_WRITE_LARGE_COORD    \
+	| ENGINE_LOAD_DELUXEDATA      \
+	| ENGINE_LARGE_LIGHTMAPS      \
+	| ENGINE_COMPENSATE_QUAKE_BUG \
+	| ENGINE_COMPUTE_STUDIO_LERP  )
+
 // Master Server protocol
 #define MS_SCAN_REQUEST "1\xFF" "0.0.0.0:0\0" // TODO: implement IP filter
 

engine/common/system.c

@@ -402,7 +402,7 @@ void Sys_Warn( const char *format, ... )
 	Msg( "Sys_Warn: %s\n", text );
 
 	if( !Host_IsDedicated() ) // dedicated server should not hang on messagebox
-		MSGBOX(text);
+		Platform_MessageBox( "Xash Warning", text, false );
 }
 
 /*
@@ -446,8 +446,8 @@ void Sys_Error( const char *error, ... )
 #if XASH_WIN32
 		Wcon_ShowConsole( false );
 #endif
-		MSGBOX( text );
 		Sys_Print( text );
+		Platform_MessageBox( "Xash Error", text, false );
 	}
 	else
 	{
@@ -562,7 +562,7 @@ void Sys_Print( const char *pMsg )
 
 	Sys_PrintLog( pMsg );
 
-	Rcon_Print( pMsg );
+	Rcon_Print( &host.rd, pMsg );
 }
 
 /*

engine/common/system.h

@@ -30,9 +30,6 @@ extern "C" {
 #include "crtlib.h"
 #include "platform/platform.h"
 
-#define MSGBOX( x )	Platform_MessageBox( "Xash Error", (x), false )
-#define MSGBOX2( x )	Platform_MessageBox( "Host Error", (x), true )
-#define MSGBOX3( x )	Platform_MessageBox( "Host Recursive Error", (x), true )
 #define ASSERT( exp )	if(!( exp )) Sys_Error( "assert failed at %s:%i\n", __FILE__, __LINE__ )
 
 /*

engine/menu_int.h

@@ -143,7 +143,7 @@ typedef struct ui_enginefuncs_s
 	void	*(*pfnKeyGetState)( const char *name );			// for mlook, klook etc
 
 	// engine memory manager
-	void*	(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline );
+	void*	(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline ) ALLOC_CHECK( 1 );
 	void	(*pfnMemFree)( void *mem, const char *filename, const int fileline );
 
 	// collect info from engine

engine/physint.h

@@ -86,7 +86,7 @@ typedef struct server_physics_api_s
 	const byte	*(*pfnGetTextureData)( unsigned int texnum );
 
 	// static allocations
-	void		*(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline );
+	void		*(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline ) ALLOC_CHECK( 1 );
 	void		(*pfnMemFree)( void *mem, const char *filename, const int fileline );
 
 	// trace & contents

engine/platform/linux/sys_linux.c

@@ -13,11 +13,33 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
 #include <time.h>
 #include <stdlib.h>
 #include <fcntl.h>
 #include <dlfcn.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <time.h>
+#include <unistd.h>
+#include <math.h>
 #include "platform/platform.h"
+#include <sys/types.h>
+
+#if defined(__GLIBC__) && (__GLIBC__ <= 2) && (__GLIBC_MINOR__ <= 30)
+// Library support was added in glibc 2.30.
+// Earlier glibc versions did not provide a wrapper for this system call,
+// necessitating the use of syscall(2).
+#include <sys/syscall.h>
+
+static pid_t gettid( void )
+{
+	return syscall( SYS_gettid );
+}
+#endif
 
 static void *g_hsystemd;
 static int (*g_pfn_sd_notify)( int unset_environment, const char *state );
@@ -103,3 +125,44 @@ void Linux_Shutdown( void )
 		g_hsystemd = NULL;
 	}
 }
+
+static void Linux_TimerHandler( int sig, siginfo_t *si, void *uc )
+{
+	timer_t  *tidp = si->si_value.sival_ptr;
+	int overrun = timer_getoverrun( *tidp );
+	Con_Printf( "Frame too long (overrun %d)!\n", overrun );
+}
+
+#define DEBUG_TIMER_SIGNAL SIGRTMIN
+
+void Linux_SetTimer( float tm )
+{
+	static timer_t timerid;
+
+	if( !timerid && tm )
+	{
+		struct sigevent    sev = { 0 };
+		struct sigaction   sa = { 0 };
+
+		sa.sa_flags = SA_SIGINFO;
+		sa.sa_sigaction = Linux_TimerHandler;
+		sigaction( DEBUG_TIMER_SIGNAL, &sa, NULL );
+		// this path availiable in POSIX, but may signal wrong thread...
+		// sev.sigev_notify = SIGEV_SIGNAL;
+		sev.sigev_notify = SIGEV_THREAD_ID;
+		sev._sigev_un._tid  = gettid();
+		sev.sigev_signo = DEBUG_TIMER_SIGNAL;
+		sev.sigev_value.sival_ptr = &timerid;
+		timer_create( CLOCK_REALTIME, &sev, &timerid );
+	}
+
+	if( timerid )
+	{
+		struct itimerspec  its = {0};
+		its.it_value.tv_sec = tm;
+		its.it_value.tv_nsec = 1000000000ULL * fmod( tm, 1.0f );
+		its.it_interval.tv_sec = 0;
+		its.it_interval.tv_nsec = 0;
+		timer_settime( timerid, 0, &its, NULL );
+	}
+}

engine/platform/platform.h

@@ -40,6 +40,7 @@ void Platform_SetStatus( const char *status );
 // legacy iOS port functions
 #if TARGET_OS_IOS
 const char *IOS_GetDocsDir( void );
+void IOS_LaunchDialog( void );
 #endif // TARGET_OS_IOS
 
 #if XASH_WIN32 || XASH_LINUX
@@ -91,6 +92,7 @@ void DOS_Shutdown( void );
 #if XASH_LINUX
 void Linux_Init( void );
 void Linux_Shutdown( void );
+void Linux_SetTimer( float time );
 #endif
 
 static inline void Platform_Init( void )
@@ -181,6 +183,13 @@ void Platform_SetClipboardText( const char *buffer );
 #define SDL_VERSION_ATLEAST( x, y, z ) 0
 #endif
 
+static void Platform_SetTimer( float time )
+{
+#if XASH_LINUX
+	Linux_SetTimer( time );
+#endif
+}
+
 /*
 ==============================================================================
 

engine/ref_api.h

@@ -28,6 +28,7 @@ GNU General Public License for more details.
 #include "r_efx.h"
 #include "com_image.h"
 #include "filesystem.h"
+#include "common/protocol.h"
 
 // RefAPI changelog:
 // 1. Initial release
@@ -38,7 +39,10 @@ GNU General Public License for more details.
 //    Removed previously unused calls
 //    Simplified remapping calls
 //    GetRefAPI is now expected to return REF_API_VERSION
-#define REF_API_VERSION 5
+// 6. Removed timing from ref_globals_t.
+//    Renderers are supposed to migrate to ref_client_t/ref_host_t using PARM_GET_CLIENT_PTR and PARM_GET_HOST_PTR
+//    Removed functions to get internal engine structions. Use PARM_GET_*_PTR instead.
+#define REF_API_VERSION 6
 
 
 #define TF_SKY		(TF_SKYSIDE|TF_NOMIPMAP)
@@ -94,11 +98,6 @@ typedef struct ref_globals_s
 {
 	qboolean developer;
 
-	float time;    // cl.time
-	float oldtime; // cl.oldtime
-	double realtime; // host.realtime
-	double frametime; // host.frametime
-
 	// viewport width and height
 	int      width;
 	int      height;
@@ -120,6 +119,26 @@ typedef struct ref_globals_s
 	int desktopBitsPixel;
 } ref_globals_t;
 
+typedef struct ref_client_s
+{
+	double   time;
+	double   oldtime;
+	int      viewentity;
+	int      playernum;
+	int      maxclients;
+	int      nummodels;
+	model_t *models[MAX_MODELS+1];
+	qboolean paused;
+	vec3_t   simorg;
+} ref_client_t;
+
+typedef struct ref_host_s
+{
+	double realtime;
+	double frametime;
+	int    features;
+} ref_host_t;
+
 enum
 {
 	GL_KEEP_UNIT = -1,
@@ -251,16 +270,18 @@ typedef enum
 	PARM_DEV_OVERVIEW      = -1,
 	PARM_THIRDPERSON       = -2,
 	PARM_QUAKE_COMPATIBLE  = -3,
-	PARM_PLAYER_INDEX      = -4, // cl.playernum + 1
-	PARM_VIEWENT_INDEX     = -5, // cl.viewentity
+	PARM_GET_CLIENT_PTR    = -4, // ref_client_t
+	PARM_GET_HOST_PTR      = -5, // ref_host_t
 	PARM_CONNSTATE         = -6, // cls.state
 	PARM_PLAYING_DEMO      = -7, // cls.demoplayback
 	PARM_WATER_LEVEL       = -8, // cl.local.water_level
-	PARM_MAX_CLIENTS       = -9, // cl.maxclients
+	PARM_GET_WORLD_PTR     = -9, // world
 	PARM_LOCAL_HEALTH      = -10, // cl.local.health
 	PARM_LOCAL_GAME        = -11,
 	PARM_NUMENTITIES       = -12, // local game only
-	PARM_NUMMODELS         = -13, // cl.nummodels
+	PARM_GET_MOVEVARS_PTR  = -13, // clgame.movevars
+	PARM_GET_PALETTE_PTR   = -14, // clgame.palette
+	PARM_GET_VIEWENT_PTR   = -15, // clgame.viewent
 } ref_parm_e;
 
 typedef struct ref_api_s
@@ -303,7 +324,6 @@ typedef struct ref_api_s
 	void	(*CL_DrawCenterPrint)( void );
 
 	// entity management
-	struct cl_entity_s *(*GetViewModel)( void );
 	struct cl_entity_s *(*R_BeamGetEntity)( int index );
 	struct cl_entity_s *(*CL_GetWaterEntity)( const vec3_t p );
 	qboolean (*CL_AddVisibleEntity)( cl_entity_t *ent, int entityType );
@@ -311,7 +331,6 @@ typedef struct ref_api_s
 	// brushes
 	int (*Mod_SampleSizeForFace)( const struct msurface_s *surf );
 	qboolean (*Mod_BoxVisible)( const vec3_t mins, const vec3_t maxs, const byte *visbits );
-	struct world_static_s *(*GetWorld)( void ); // returns &world
 	mleaf_t *(*Mod_PointInLeaf)( const vec3_t p, mnode_t *node );
 	void (*Mod_CreatePolygonsForHull)( int hullnum );
 
@@ -331,7 +350,6 @@ typedef struct ref_api_s
 	// model management
 	model_t *(*Mod_ForName)( const char *name, qboolean crash, qboolean trackCRC );
 	void *(*Mod_Extradata)( int type, model_t *model );
-	struct model_s **(*pfnGetModels)( void );
 
 	// remap
 	qboolean (*CL_EntitySetRemapColors)( cl_entity_t *e, model_t *mod, int top, int bottom );
@@ -344,8 +362,6 @@ typedef struct ref_api_s
 	float (*COM_RandomFloat)( float rmin, float rmax );
 	int   (*COM_RandomLong)( int rmin, int rmax );
 	struct screenfade_s *(*GetScreenFade)( void );
-	void (*GetPredictedOrigin)( vec3_t v );
-	color24 *(*CL_GetPaletteColor)( void ); // clgame.palette[color]
 	void (*CL_GetScreenInfo)( int *width, int *height ); // clgame.scrInfo, ptrs may be NULL
 	void (*SetLocalLightLevel)( int level ); // cl.local.light_level
 	int (*Sys_CheckParm)( const char *flag );
@@ -361,8 +377,8 @@ typedef struct ref_api_s
 	// memory
 	poolhandle_t (*_Mem_AllocPool)( const char *name, const char *filename, int fileline );
 	void  (*_Mem_FreePool)( poolhandle_t *poolptr, const char *filename, int fileline );
-	void *(*_Mem_Alloc)( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline );
-	void *(*_Mem_Realloc)( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline );
+	void *(*_Mem_Alloc)( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 2 );
+	void *(*_Mem_Realloc)( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 3 );
 	void  (*_Mem_Free)( void *data, const char *filename, int fileline );
 
 	// library management
@@ -406,7 +422,6 @@ typedef struct ref_api_s
 	struct pmtrace_s *(*PM_TraceLine)( float *start, float *end, int flags, int usehull, int ignore_pe );
 	struct pmtrace_s *(*EV_VisTraceLine )( float *start, float *end, int flags );
 	struct pmtrace_s (*CL_TraceLine)( vec3_t start, vec3_t end, int flags );
-	struct movevars_s *(*pfnGetMoveVars)( void );
 
 	// imagelib
 	void (*Image_AddCmdFlags)( uint flags ); // used to check if hardware dxt is supported

engine/server/server.h

@@ -564,7 +564,7 @@ qboolean SV_IsPlayerIndex( int idx );
 int SV_CalcPing( sv_client_t *cl );
 void SV_InitClientMove( void );
 void SV_UpdateServerInfo( void );
-void SV_EndRedirect( void );
+void SV_EndRedirect( host_redirect_t *rd );
 void SV_RejectConnection( netadr_t from, const char *fmt, ... ) _format( 2 );
 void SV_GetPlayerCount( int *clients, int *bots );
 

engine/server/sv_client.c

@@ -639,7 +639,7 @@ void SV_DropClient( sv_client_t *cl, qboolean crash )
 	cl->frames = NULL;
 
 	if( NET_CompareBaseAdr( cl->netchan.remote_address, host.rd.address ))
-		SV_EndRedirect();
+		SV_EndRedirect( &host.rd );
 
 	// throw away any residual garbage in the channel.
 	Netchan_Clear( &cl->netchan );
@@ -676,22 +676,19 @@ SVC COMMAND REDIRECT
 
 ==============================================================================
 */
-void SV_BeginRedirect( netadr_t adr, rdtype_t target, char *buffer, size_t buffersize, void (*flush))
+static void SV_BeginRedirect( host_redirect_t *rd, netadr_t adr, rdtype_t target, char *buffer, size_t buffersize, void (*flush))
 {
-	if( !target || !buffer || !buffersize || !flush )
-		return;
-
-	host.rd.target = target;
-	host.rd.buffer = buffer;
-	host.rd.buffersize = buffersize;
-	host.rd.flush = flush;
-	host.rd.address = adr;
-	host.rd.buffer[0] = 0;
-	if( host.rd.lines == 0 )
-		host.rd.lines = -1;
+	rd->target = target;
+	rd->buffer = buffer;
+	rd->buffersize = buffersize;
+	rd->flush = flush;
+	rd->address = adr;
+	rd->buffer[0] = 0;
+	if( rd->lines == 0 )
+		rd->lines = -1;
 }
 
-void SV_FlushRedirect( netadr_t adr, int dest, char *buf )
+static void SV_FlushRedirect( netadr_t adr, int dest, char *buf )
 {
 	if( sv.current_client && FBitSet( sv.current_client->flags, FCL_FAKECLIENT ))
 		return;
@@ -712,18 +709,18 @@ void SV_FlushRedirect( netadr_t adr, int dest, char *buf )
 	}
 }
 
-void SV_EndRedirect( void )
+void SV_EndRedirect( host_redirect_t *rd )
 {
-	if( host.rd.lines > 0 )
+	if( rd->lines > 0 )
 		return;
 
-	if( host.rd.flush )
-		host.rd.flush( host.rd.address, host.rd.target, host.rd.buffer );
+	if( rd->flush )
+		rd->flush( rd->address, rd->target, rd->buffer );
 
-	host.rd.target = 0;
-	host.rd.buffer = NULL;
-	host.rd.buffersize = 0;
-	host.rd.flush = NULL;
+	rd->target = RD_NONE;
+	rd->buffer = NULL;
+	rd->buffersize = 0;
+	rd->flush = NULL;
 }
 
 /*
@@ -733,24 +730,26 @@ Rcon_Print
 Print message to rcon buffer and send to rcon redirect target
 ================
 */
-void Rcon_Print( const char *pMsg )
+void Rcon_Print( host_redirect_t *rd, const char *pMsg )
 {
-	if( host.rd.target && host.rd.lines && host.rd.flush && host.rd.buffer )
+	size_t len;
+
+	if( !rd->target || !rd->lines || !rd->flush || !rd->buffer )
+		return;
+
+	len = Q_strncat( rd->buffer, pMsg, rd->buffersize );
+
+	if( len && rd->buffer[len - 1] == '\n' )
 	{
-		size_t len = Q_strncat( host.rd.buffer, pMsg, host.rd.buffersize );
+		rd->flush( rd->address, rd->target, rd->buffer );
 
-		if( len && host.rd.buffer[len-1] == '\n' )
-		{
-			host.rd.flush( host.rd.address, host.rd.target, host.rd.buffer );
+		if( rd->lines > 0 )
+			rd->lines--;
 
-			if( host.rd.lines > 0 )
-				host.rd.lines--;
+		rd->buffer[0] = 0;
 
-			host.rd.buffer[0] = 0;
-
-			if( !host.rd.lines )
-				Msg( "End of redirection!\n" );
-		}
+		if( !rd->lines )
+			Msg( "End of redirection!\n" );
 	}
 }
 
@@ -1090,7 +1089,7 @@ void SV_RemoteCommand( netadr_t from, sizebuf_t *msg )
 
 	if( Rcon_Validate( ))
 	{
-		SV_BeginRedirect( from, RD_PACKET, outputbuf, sizeof( outputbuf ) - 16, SV_FlushRedirect );
+		SV_BeginRedirect( &host.rd, from, RD_PACKET, outputbuf, sizeof( outputbuf ) - 16, SV_FlushRedirect );
 
 		remaining[0] = 0;
 		for( i = 2; i < Cmd_Argc(); i++ )
@@ -1101,7 +1100,7 @@ void SV_RemoteCommand( netadr_t from, sizebuf_t *msg )
 		}
 		Cmd_ExecuteString( remaining );
 
-		SV_EndRedirect();
+		SV_EndRedirect( &host.rd );
 	}
 	else Con_Printf( S_ERROR "Bad rcon_password.\n" );
 }

engine/server/sv_game.c

@@ -4525,7 +4525,7 @@ static qboolean GAME_EXPORT pfnVoice_GetClientListening( int iReceiver, int iSen
 	iReceiver -= 1;
 	iSender -= 1;
 
-	if( iReceiver < 0 || iReceiver >= svs.maxclients || iSender < 0 || iSender > svs.maxclients )
+	if( iReceiver < 0 || iReceiver >= svs.maxclients || iSender < 0 || iSender >= svs.maxclients )
 		return false;
 
 	return (FBitSet( svs.clients[iSender].listeners, BIT( iReceiver )) != 0 );
@@ -4542,7 +4542,7 @@ static qboolean GAME_EXPORT pfnVoice_SetClientListening( int iReceiver, int iSen
 	iReceiver -= 1;
 	iSender -= 1;
 
-	if( iReceiver < 0 || iReceiver >= svs.maxclients || iSender < 0 || iSender > svs.maxclients )
+	if( iReceiver < 0 || iReceiver >= svs.maxclients || iSender < 0 || iSender >= svs.maxclients )
 		return false;
 
 	if( bListen ) SetBits( svs.clients[iSender].listeners, BIT( iReceiver ));

engine/server/sv_main.c

@@ -1103,7 +1103,7 @@ void SV_Shutdown( const char *finalmsg )
 		Con_Printf( "%s", finalmsg );
 
 	// rcon will be disconnected
-	SV_EndRedirect();
+	SV_EndRedirect( &host.rd );
 
 	if( svs.clients )
 		SV_FinalMessage( finalmsg, false );

engine/server/sv_phys.c

@@ -2139,18 +2139,18 @@ qboolean SV_InitPhysicsAPI( void )
 			if( svgame.physFuncs.SV_CheckFeatures != NULL )
 			{
 				// grab common engine features (it will be shared across the network)
-				host.features = svgame.physFuncs.SV_CheckFeatures();
-				Host_PrintEngineFeatures ();
+				Host_ValidateEngineFeatures( svgame.physFuncs.SV_CheckFeatures( ));
 			}
 			return true;
 		}
 
 		// make sure what physic functions is cleared
 		memset( &svgame.physFuncs, 0, sizeof( svgame.physFuncs ));
-
+		Host_ValidateEngineFeatures( 0 );
 		return false; // just tell user about problems
 	}
 
 	// physic interface is missed
+	Host_ValidateEngineFeatures( 0 );
 	return true;
 }

engine/wscript

@@ -37,8 +37,6 @@ def options(opt):
 def configure(conf):
 	# check for dedicated server build
 	if conf.options.DEDICATED:
-		if conf.env.DEST_OS == 'linux':
-			conf.check_cc(lib='rt')
 		conf.define('XASH_DEDICATED', 1)
 	elif conf.env.DEST_OS == 'dos':
 		conf.options.STATIC = True
@@ -73,12 +71,9 @@ def configure(conf):
 		# unused, XASH_LINUX without XASH_SDL gives fbdev & alsa support
 		# conf.define('XASH_FBDEV', 1)
 		conf.check_cc( lib = 'asound' )
-		conf.check_cc( lib = 'rt' )
 	elif conf.options.SDL12:
 		conf.define('XASH_SDL', 12)
 		conf.check_cfg(package='sdl', args='--cflags --libs', uselib_store='SDL2' )
-		if conf.env.DEST_OS == 'linux':
-			conf.check_cc( lib='rt' )
 		conf.env.HAVE_SDL2 = True
 	else:
 		conf.load('sdl2')
@@ -97,6 +92,9 @@ def configure(conf):
 	if not conf.env.DEST_OS in ['win32', 'android'] and not conf.options.NO_ASYNC_RESOLVE:
 		conf.check_pthreads()
 
+	if conf.env.DEST_OS == 'linux':
+		conf.check_cc(lib='rt')
+
 	if hasattr(conf.options, 'DLLEMU'):
 		conf.define_cond('XASH_DLL_LOADER', conf.options.DLLEMU)
 
@@ -112,7 +110,7 @@ def configure(conf):
 	conf.define_cond('XASH_ENGINE_TESTS', conf.env.ENGINE_TESTS)
 	conf.define_cond('XASH_STATIC_LIBS', conf.env.STATIC_LINKING)
 	conf.define_cond('XASH_CUSTOM_SWAP', conf.options.CUSTOM_SWAP)
-	conf.define_cond('SINGLE_BINARY', conf.env.SINGLE_BINARY)
+	conf.define_cond('XASH_ENABLE_MAIN', conf.env.DISABLE_LAUNCHER)
 	conf.define_cond('XASH_NO_ASYNC_NS_RESOLVE', conf.options.NO_ASYNC_RESOLVE)
 	conf.define_cond('SUPPORT_BSP2_FORMAT', conf.options.SUPPORT_BSP2_FORMAT)
 	conf.define_cond('XASH_64BIT', conf.env.DEST_SIZEOF_VOID_P != 4)

filesystem/filesystem.c

@@ -1287,6 +1287,26 @@ static qboolean FS_CheckForCrypt( const char *dllname )
 	return ( key == 0x12345678 ) ? true : false;
 }
 
+static int FS_StripIdiotRelativePath( const char *dllname, const char *gamefolder )
+{
+	string idiot_relpath;
+	int len;
+
+	if(( len = Q_snprintf( idiot_relpath, sizeof( idiot_relpath ), "../%s/", gamefolder )) >= 4 )
+	{
+		if( !Q_strnicmp( dllname, idiot_relpath, len ))
+			return len;
+
+		// try backslashes
+		idiot_relpath[1] = '\\';
+		idiot_relpath[len - 1] = '\\';
+		if( !Q_strnicmp( dllname, idiot_relpath, len ))
+			return len;
+	}
+
+	return 0;
+}
+
 /*
 ==================
 FS_FindLibrary
@@ -1306,9 +1326,16 @@ static qboolean FS_FindLibrary( const char *dllname, qboolean directpath, fs_dll
 
 	fs_ext_path = directpath;
 
-	// HACKHACK remove absoulte path to valve folder
-	if( !Q_strnicmp( dllname, "..\\valve\\", 9 ) || !Q_strnicmp( dllname, "../valve/", 9 ))
-		start += 9;
+	// HACKHACK remove relative path to game folder
+	if( !Q_strnicmp( dllname, "..", 2 ))
+	{
+		// some modders put relative path to themselves???
+		len = FS_StripIdiotRelativePath( dllname, GI->gamefolder );
+
+		if( len == 0 ) // or put relative path to Half-Life game libs
+			len = FS_StripIdiotRelativePath( dllname, "valve" );
+		start += len;
+	}
 
 	// replace all backward slashes
 	len = Q_strlen( dllname );
@@ -1677,6 +1704,9 @@ file_t *FS_SysOpen( const char *filepath, const char *mode )
 
 	if( file->handle < 0 )
 	{
+		if( errno != ENOENT )
+			Con_Printf( S_ERROR "%s: can't open file %s: %s\n", __func__, filepath, strerror( errno ));
+
 		Mem_Free( file );
 		return NULL;
 	}

filesystem/filesystem.h

@@ -210,8 +210,8 @@ typedef struct fs_interface_t
 	// memory
 	poolhandle_t (*_Mem_AllocPool)( const char *name, const char *filename, int fileline );
 	void  (*_Mem_FreePool)( poolhandle_t *poolptr, const char *filename, int fileline );
-	void *(*_Mem_Alloc)( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline );
-	void *(*_Mem_Realloc)( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline );
+	void *(*_Mem_Alloc)( poolhandle_t poolptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 2 );
+	void *(*_Mem_Realloc)( poolhandle_t poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline ) ALLOC_CHECK( 3 );
 	void  (*_Mem_Free)( void *data, const char *filename, int fileline );
 
 	// platform

ref/gl/gl_alias.c

@@ -765,7 +765,7 @@ similar to R_StudioDynamicLight
 */
 void R_AliasDynamicLight( cl_entity_t *ent, alight_t *plight )
 {
-	movevars_t	*mv = gEngfuncs.pfnGetMoveVars();
+	movevars_t	*mv = tr.movevars;
 	vec3_t		lightDir, vecSrc, vecEnd;
 	vec3_t		origin, dist, finalLight;
 	float		add, radius, total;
@@ -801,7 +801,7 @@ void R_AliasDynamicLight( cl_entity_t *ent, alight_t *plight )
 		msurface_t	*psurf = NULL;
 		pmtrace_t		trace;
 
-		if( FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_WRITE_LARGE_COORD ))
+		if( FBitSet( gp_host->features, ENGINE_WRITE_LARGE_COORD ))
 		{
 			vecEnd[0] = origin[0] - mv->skyvec_x * 65536.0f;
 			vecEnd[1] = origin[1] - mv->skyvec_y * 65536.0f;
@@ -1332,12 +1332,12 @@ static void R_AliasSetupTimings( void )
 	if( RI.drawWorld )
 	{
 		// synchronize with server time
-		g_alias.time = gpGlobals->time;
+		g_alias.time = gp_cl->time;
 	}
 	else
 	{
 		// menu stuff
-		g_alias.time = gpGlobals->realtime;
+		g_alias.time = gp_host->realtime;
 	}
 
 	m_fDoRemap = false;
@@ -1381,7 +1381,7 @@ void R_DrawAliasModel( cl_entity_t *e )
 
 	R_AliasLerpMovement( e );
 
-	if( !FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_COMPENSATE_QUAKE_BUG ))
+	if( !FBitSet( gp_host->features, ENGINE_COMPENSATE_QUAKE_BUG ))
 		e->angles[PITCH] = -e->angles[PITCH]; // stupid quake bug
 
 	// don't rotate clients, only aim

ref/gl/gl_beams.c

@@ -608,7 +608,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 	if( pnew )
 	{
 		VectorCopy( pbeam->source, pnew->org );
-		pnew->die = gpGlobals->time + pbeam->amplitude;
+		pnew->die = gp_cl->time + pbeam->amplitude;
 		VectorClear( pnew->vel );
 
 		pnew->next = particles;
@@ -655,7 +655,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 	VectorMA( delta, -pbeam->width, normal, last2 );
 
 	div = 1.0f / pbeam->amplitude;
-	fraction = ( pbeam->die - gpGlobals->time ) * div;
+	fraction = ( pbeam->die - gp_cl->time ) * div;
 
 	vLast = 0.0f;
 	vStep = 1.0f;
@@ -688,7 +688,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 
 		if( particles->next != NULL )
 		{
-			fraction = (particles->die - gpGlobals->time) * div;
+			fraction = (particles->die - gp_cl->time) * div;
 		}
 		else
 		{
@@ -867,12 +867,8 @@ static qboolean R_BeamComputePoint( int beamEnt, vec3_t pt )
 	// get attachment
 	if( attach > 0 )
 		VectorCopy( ent->attachment[attach - 1], pt );
-	else if( ent->index == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) )
-	{
-		vec3_t simorg;
-		gEngfuncs.GetPredictedOrigin( simorg );
-		VectorCopy( simorg, pt );
-	}
+	else if( ent->index == ( gp_cl->playernum + 1 ))
+		VectorCopy( gp_cl->simorg, pt );
 	else VectorCopy( ent->origin, pt );
 
 	return true;
@@ -916,7 +912,7 @@ qboolean R_BeamRecomputeEndpoints( BEAM *pbeam )
 		else if( !FBitSet( pbeam->flags, FBEAM_FOREVER ))
 		{
 			ClearBits( pbeam->flags, FBEAM_ENDENTITY );
-			pbeam->die = gpGlobals->time;
+			pbeam->die = gp_cl->time;
 			return false;
 		}
 		else
@@ -949,7 +945,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 	if( !model || model->type != mod_sprite )
 	{
 		pbeam->flags &= ~FBEAM_ISACTIVE; // force to ignore
-		pbeam->die = gpGlobals->time;
+		pbeam->die = gp_cl->time;
 		return;
 	}
 
@@ -1007,7 +1003,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 	if( pbeam->flags & ( FBEAM_FADEIN|FBEAM_FADEOUT ))
 	{
 		// update life cycle
-		pbeam->t = pbeam->freq + ( pbeam->die - gpGlobals->time );
+		pbeam->t = pbeam->freq + ( pbeam->die - gp_cl->time );
 		if( pbeam->t != 0.0f ) pbeam->t = 1.0f - pbeam->freq / pbeam->t;
 	}
 
@@ -1055,7 +1051,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 
 	TriRenderMode( FBitSet( pbeam->flags, FBEAM_SOLID ) ? kRenderNormal : kRenderTransAdd );
 
-	if( !TriSpriteTexture( model, (int)(pbeam->frame + pbeam->frameRate * gpGlobals->time) % pbeam->frameCount ))
+	if( !TriSpriteTexture( model, (int)(pbeam->frame + pbeam->frameRate * gp_cl->time) % pbeam->frameCount ))
 	{
 		ClearBits( pbeam->flags, FBEAM_ISACTIVE );
 		return;
@@ -1160,8 +1156,8 @@ static void R_BeamSetup( BEAM *pbeam, vec3_t start, vec3_t end, int modelIndex,
 	VectorCopy( end, pbeam->target );
 	VectorSubtract( end, start, pbeam->delta );
 
-	pbeam->freq = speed * gpGlobals->time;
-	pbeam->die = life + gpGlobals->time;
+	pbeam->freq = speed * gp_cl->time;
+	pbeam->die = life + gp_cl->time;
 	pbeam->amplitude = amplitude;
 	pbeam->brightness = brightness;
 	pbeam->width = width;
@@ -1291,7 +1287,7 @@ void CL_DrawBeams( int fTrans, BEAM *active_beams )
 		if( !fTrans && !FBitSet( pBeam->flags, FBEAM_SOLID ))
 			continue;
 
-		R_BeamDraw( pBeam, gpGlobals->time -   gpGlobals->oldtime );
+		R_BeamDraw( pBeam, gp_cl->time -   gp_cl->oldtime );
 	}
 
 	pglShadeModel( GL_FLAT );

ref/gl/gl_context.c

@@ -24,6 +24,8 @@ GNU General Public License for more details.
 
 ref_api_t      gEngfuncs;
 ref_globals_t *gpGlobals;
+ref_client_t  *gp_cl;
+ref_host_t    *gp_host;
 
 static void R_ClearScreen( void )
 {
@@ -234,7 +236,7 @@ static int GL_RefGetParm( int parm, int arg )
 	case PARM_STENCIL_ACTIVE:
 		return glState.stencilEnabled;
 	case PARM_SKY_SPHERE:
-		return ENGINE_GET_PARM_( parm, arg ) && !tr.fCustomSkybox;
+		return FBitSet( tr.world->flags, FWORLD_SKYSPHERE ) && !FBitSet( tr.world->flags, FWORLD_CUSTOM_SKYBOX );
 	default:
 		return ENGINE_GET_PARM_( parm, arg );
 	}
@@ -518,5 +520,8 @@ int EXPORT GetRefAPI( int version, ref_interface_t *funcs, ref_api_t *engfuncs,
 	memcpy( &gEngfuncs, engfuncs, sizeof( ref_api_t ));
 	gpGlobals = globals;
 
+	gp_cl = (ref_client_t *)ENGINE_GET_PARM( PARM_GET_CLIENT_PTR );
+	gp_host = (ref_host_t *)ENGINE_GET_PARM( PARM_GET_HOST_PTR );
+
 	return REF_API_VERSION;
 }

ref/gl/gl_local.h

@@ -34,6 +34,7 @@ GNU General Public License for more details.
 #include "common/cvar.h"
 #include "gl_export.h"
 #include "wadfile.h"
+#include "common/mod_local.h"
 
 #if XASH_PSVITA
 int VGL_ShimInit( void );
@@ -87,10 +88,10 @@ extern poolhandle_t r_temppool;
 #define RP_NONVIEWERREF	(RP_ENVVIEW)
 #define R_ModelOpaque( rm )	( rm == kRenderNormal )
 #define R_StaticEntity( ent )	( VectorIsNull( ent->origin ) && VectorIsNull( ent->angles ))
-#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) && e->player )
+#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == ( gp_cl->playernum + 1 ) && e->player )
 #define RP_NORMALPASS()	( FBitSet( RI.params, RP_NONVIEWERREF ) == 0 )
 
-#define CL_IsViewEntityLocalPlayer() ( ENGINE_GET_PARM( PARM_VIEWENT_INDEX ) == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) )
+#define CL_IsViewEntityLocalPlayer() ( gp_cl->viewentity == ( gp_cl->playernum + 1 ))
 
 #define CULL_VISIBLE	0		// not culled
 #define CULL_BACKSIDE	1		// backside of transparent wall
@@ -252,13 +253,10 @@ typedef struct
 	// cull info
 	vec3_t		modelorg;		// relative to viewpoint
 
-	qboolean fCustomSkybox;
-
 	// get from engine
-	struct world_static_s *world;
+	world_static_t *world;
 	cl_entity_t *entities;
 	movevars_t *movevars;
-	model_t **models;
 	color24 *palette;
 	cl_entity_t *viewent;
 
@@ -401,6 +399,7 @@ void R_TranslateForEntity( cl_entity_t *e );
 void R_RotateForEntity( cl_entity_t *e );
 void R_SetupGL( qboolean set_gl_state );
 void R_AllowFog( qboolean allowed );
+qboolean R_OpaqueEntity( cl_entity_t *ent );
 void R_SetupFrustum( void );
 void R_FindViewLeaf( void );
 void R_CheckGamma( void );
@@ -725,6 +724,8 @@ extern glstate_t		glState;
 extern glwstate_t		glw_state;
 extern ref_api_t      gEngfuncs;
 extern ref_globals_t *gpGlobals;
+extern ref_client_t  *gp_cl;
+extern ref_host_t    *gp_host;
 
 #define ENGINE_GET_PARM_ (*gEngfuncs.EngineGetParm)
 #define ENGINE_GET_PARM( parm ) ENGINE_GET_PARM_( ( parm ), 0 )
@@ -734,15 +735,21 @@ extern ref_globals_t *gpGlobals;
 //
 static inline cl_entity_t *CL_GetEntityByIndex( int index )
 {
+	if( unlikely( index < 0 || index >= tr.max_entities || !tr.entities ))
+		return NULL;
+
 	return &tr.entities[index];
 }
 
 static inline model_t *CL_ModelHandle( int index )
 {
-	return tr.models[index];
+	if( unlikely( index < 0 || index >= gp_cl->nummodels ))
+		return NULL;
+
+	return gp_cl->models[index];
 }
 
-#define WORLDMODEL (tr.models[1])
+#define WORLDMODEL (gp_cl->models[1])
 
 //
 // renderer cvars
@@ -774,6 +781,7 @@ extern convar_t	r_lockfrustum;
 extern convar_t	r_traceglow;
 extern convar_t	r_vbo;
 extern convar_t	r_vbo_dlightmode;
+extern convar_t	r_vbo_detail;
 extern convar_t r_studio_sort_textures;
 extern convar_t r_studio_drawelements;
 extern convar_t r_ripple;

ref/gl/gl_opengl.c

@@ -29,6 +29,7 @@ CVAR_DEFINE_AUTO( r_lockfrustum, "0", FCVAR_CHEAT, "lock frustrum area at curren
 CVAR_DEFINE_AUTO( r_traceglow, "0", FCVAR_GLCONFIG, "cull flares behind models" );
 CVAR_DEFINE_AUTO( gl_round_down, "2", FCVAR_GLCONFIG|FCVAR_READ_ONLY, "round texture sizes to nearest POT value" );
 CVAR_DEFINE( r_vbo, "gl_vbo", "0", FCVAR_ARCHIVE, "draw world using VBO (known to be glitchy)" );
+CVAR_DEFINE( r_vbo_detail, "gl_vbo_detail", "0", FCVAR_ARCHIVE, "detail vbo mode (0: disable, 1: multipass, 2: singlepass, broken decal dlights)" );
 CVAR_DEFINE( r_vbo_dlightmode, "gl_vbo_dlightmode", "1", FCVAR_ARCHIVE, "vbo dlight rendering mode (0-1)" );
 CVAR_DEFINE_AUTO( r_ripple, "0", FCVAR_GLCONFIG, "enable software-like water texture ripple simulation" );
 CVAR_DEFINE_AUTO( r_ripple_updatetime, "0.05", FCVAR_GLCONFIG, "how fast ripple simulation is" );
@@ -1244,6 +1245,7 @@ static void R_CheckVBO( void )
 
 	gEngfuncs.Cvar_RegisterVariable( &r_vbo );
 	gEngfuncs.Cvar_RegisterVariable( &r_vbo_dlightmode );
+	gEngfuncs.Cvar_RegisterVariable( &r_vbo_detail );
 }
 
 /*
@@ -1285,11 +1287,10 @@ qboolean R_Init( void )
 	}
 
 	// see R_ProcessEntData for tr.entities initialization
-	tr.world = gEngfuncs.GetWorld();
-	tr.models = gEngfuncs.pfnGetModels();
-	tr.movevars = gEngfuncs.pfnGetMoveVars();
-	tr.palette = gEngfuncs.CL_GetPaletteColor();
-	tr.viewent = gEngfuncs.GetViewModel();
+	tr.world = (struct world_static_s *)ENGINE_GET_PARM( PARM_GET_WORLD_PTR );
+	tr.movevars = (movevars_t *)ENGINE_GET_PARM( PARM_GET_MOVEVARS_PTR );
+	tr.palette = (color24 *)ENGINE_GET_PARM( PARM_GET_PALETTE_PTR );
+	tr.viewent = (cl_entity_t *)ENGINE_GET_PARM( PARM_GET_VIEWENT_PTR );
 
 	GL_SetDefaults();
 	R_CheckVBO();

ref/gl/gl_rlight.c

@@ -36,7 +36,7 @@ void CL_RunLightStyles( void )
 {
 	int		i, k, flight, clight;
 	float		l, lerpfrac, backlerp;
-	float		frametime = (gpGlobals->time -   gpGlobals->oldtime);
+	float		frametime = (gp_cl->time -   gp_cl->oldtime);
 	float		scale;
 	lightstyle_t	*ls;
 
@@ -55,7 +55,7 @@ void CL_RunLightStyles( void )
 			continue;
 		}
 
-		if( !ENGINE_GET_PARM( PARAM_GAMEPAUSED ) && frametime <= 0.1f )
+		if( !gp_cl->paused && frametime <= 0.1f )
 			ls->time += frametime; // evaluate local time
 
 		flight = (int)Q_floor( ls->time * 10 );
@@ -160,7 +160,7 @@ void R_PushDlights( void )
 	{
 		l = gEngfuncs.GetDynamicLight( i );
 
-		if( l->die < gpGlobals->time || !l->radius )
+		if( l->die < gp_cl->time || !l->radius )
 			continue;
 
 		if( GL_FrustumCullSphere( &RI.frustum, l->origin, l->radius, 15 ))

ref/gl/gl_rmain.c

@@ -61,7 +61,7 @@ R_OpaqueEntity
 Opaque entity can be brush or studio model but sprite
 ===============
 */
-static qboolean R_OpaqueEntity( cl_entity_t *ent )
+qboolean R_OpaqueEntity( cl_entity_t *ent )
 {
 	if( R_GetEntityRenderMode( ent ) == kRenderNormal )
 		return true;
@@ -339,8 +339,8 @@ void R_SetupFrustum( void )
 
 	if( RP_NORMALPASS() && ( ENGINE_GET_PARM( PARM_WATER_LEVEL ) >= 3 ) && ENGINE_GET_PARM( PARM_QUAKE_COMPATIBLE ))
 	{
-		RI.fov_x = atan( tan( DEG2RAD( RI.fov_x ) / 2 ) * ( 0.97f + sin( gpGlobals->time * 1.5f ) * 0.03f )) * 2 / (M_PI_F / 180.0f);
-		RI.fov_y = atan( tan( DEG2RAD( RI.fov_y ) / 2 ) * ( 1.03f - sin( gpGlobals->time * 1.5f ) * 0.03f )) * 2 / (M_PI_F / 180.0f);
+		RI.fov_x = atan( tan( DEG2RAD( RI.fov_x ) / 2 ) * ( 0.97f + sin( gp_cl->time * 1.5f ) * 0.03f )) * 2 / (M_PI_F / 180.0f);
+		RI.fov_y = atan( tan( DEG2RAD( RI.fov_y ) / 2 ) * ( 1.03f - sin( gp_cl->time * 1.5f ) * 0.03f )) * 2 / (M_PI_F / 180.0f);
 	}
 
 	// build the transformation matrix for the given view angles
@@ -954,7 +954,7 @@ void R_RenderScene( void )
 
 	// frametime is valid only for normal pass
 	if( RP_NORMALPASS( ))
-		tr.frametime = gpGlobals->time -   gpGlobals->oldtime;
+		tr.frametime = gp_cl->time -   gp_cl->oldtime;
 	else tr.frametime = 0.0;
 
 	// begin a new frame
@@ -1181,16 +1181,16 @@ int CL_FxBlend( cl_entity_t *e )
 	switch( e->curstate.renderfx )
 	{
 	case kRenderFxPulseSlowWide:
-		blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 2 + offset );
+		blend = e->curstate.renderamt + 0x40 * sin( gp_cl->time * 2 + offset );
 		break;
 	case kRenderFxPulseFastWide:
-		blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 8 + offset );
+		blend = e->curstate.renderamt + 0x40 * sin( gp_cl->time * 8 + offset );
 		break;
 	case kRenderFxPulseSlow:
-		blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 2 + offset );
+		blend = e->curstate.renderamt + 0x10 * sin( gp_cl->time * 2 + offset );
 		break;
 	case kRenderFxPulseFast:
-		blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 8 + offset );
+		blend = e->curstate.renderamt + 0x10 * sin( gp_cl->time * 8 + offset );
 		break;
 	case kRenderFxFadeSlow:
 		if( RP_NORMALPASS( ))
@@ -1229,27 +1229,27 @@ int CL_FxBlend( cl_entity_t *e )
 		blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeSlow:
-		blend = 20 * sin( gpGlobals->time * 4 + offset );
+		blend = 20 * sin( gp_cl->time * 4 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeFast:
-		blend = 20 * sin( gpGlobals->time * 16 + offset );
+		blend = 20 * sin( gp_cl->time * 16 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeFaster:
-		blend = 20 * sin( gpGlobals->time * 36 + offset );
+		blend = 20 * sin( gp_cl->time * 36 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxFlickerSlow:
-		blend = 20 * (sin( gpGlobals->time * 2 ) + sin( gpGlobals->time * 17 + offset ));
+		blend = 20 * (sin( gp_cl->time * 2 ) + sin( gp_cl->time * 17 + offset ));
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxFlickerFast:
-		blend = 20 * (sin( gpGlobals->time * 16 ) + sin( gpGlobals->time * 23 + offset ));
+		blend = 20 * (sin( gp_cl->time * 16 ) + sin( gp_cl->time * 23 + offset ));
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;

ref/gl/gl_rpart.c

@@ -87,7 +87,7 @@ void CL_DrawParticles( double frametime, particle_t *cl_active_particles, float
 			p->color = bound( 0, p->color, 255 );
 			color = tr.palette[p->color];
 
-			alpha = 255 * (p->die - gpGlobals->time) * 16.0f;
+			alpha = 255 * (p->die - gp_cl->time) * 16.0f;
 			if( alpha > 255 || p->type == pt_static )
 				alpha = 255;
 
@@ -194,7 +194,7 @@ void CL_DrawTracers( double frametime, particle_t *cl_active_tracers )
 
 	for( p = cl_active_tracers; p; p = p->next )
 	{
-		atten = (p->die - gpGlobals->time);
+		atten = (p->die - gp_cl->time);
 		if( atten > 0.1f ) atten = 0.1f;
 
 		VectorScale( p->vel, ( p->ramp * atten ), delta );
@@ -259,7 +259,7 @@ void CL_DrawTracers( double frametime, particle_t *cl_active_tracers )
 			p->vel[1] *= scale;
 			p->vel[2] -= gravity;
 
-			p->packedColor = 255 * (p->die - gpGlobals->time) * 2;
+			p->packedColor = 255 * (p->die - gp_cl->time) * 2;
 			if( p->packedColor > 255 ) p->packedColor = 255;
 		}
 		else if( p->type == pt_slowgrav )

ref/gl/gl_sprite.c

@@ -430,7 +430,7 @@ mspriteframe_t *R_GetSpriteFrame( const model_t *pModel, int frame, float yaw )
 
 		// when loading in Mod_LoadSpriteGroup, we guaranteed all interval values
 		// are positive, so we don't have to worry about division by zero
-		targettime = gpGlobals->time - ((int)( gpGlobals->time / fullinterval )) * fullinterval;
+		targettime = gp_cl->time - ((int)( gp_cl->time / fullinterval )) * fullinterval;
 
 		for( i = 0; i < (numframes - 1); i++ )
 		{
@@ -494,25 +494,25 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 				// this can be happens when rendering switched between single and angled frames
 				// or change model on replace delta-entity
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 1.0f;
 			}
 
-			if( ent->latched.sequencetime < gpGlobals->time )
+			if( ent->latched.sequencetime < gp_cl->time )
 			{
 				if( frame != ent->latched.prevblending[1] )
 				{
 					ent->latched.prevblending[0] = ent->latched.prevblending[1];
 					ent->latched.prevblending[1] = frame;
-					ent->latched.sequencetime = gpGlobals->time;
+					ent->latched.sequencetime = gp_cl->time;
 					lerpFrac = 0.0f;
 				}
-				else lerpFrac = (gpGlobals->time - ent->latched.sequencetime) * 11.0f;
+				else lerpFrac = (gp_cl->time - ent->latched.sequencetime) * 11.0f;
 			}
 			else
 			{
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 0.0f;
 			}
 		}
@@ -526,7 +526,7 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 		{
 			// reset interpolation on change model
 			ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-			ent->latched.sequencetime = gpGlobals->time;
+			ent->latched.sequencetime = gp_cl->time;
 			lerpFrac = 0.0f;
 		}
 
@@ -541,7 +541,7 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 		numframes = pspritegroup->numframes;
 		fullinterval = pintervals[numframes-1];
 		jinterval = pintervals[1] - pintervals[0];
-		time = gpGlobals->time;
+		time = gp_cl->time;
 		jtime = 0.0f;
 
 		// when loading in Mod_LoadSpriteGroup, we guaranteed all interval values
@@ -580,25 +580,25 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 				// this can be happens when rendering switched between single and angled frames
 				// or change model on replace delta-entity
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 1.0f;
 			}
 
-			if( ent->latched.sequencetime < gpGlobals->time )
+			if( ent->latched.sequencetime < gp_cl->time )
 			{
 				if( frame != ent->latched.prevblending[1] )
 				{
 					ent->latched.prevblending[0] = ent->latched.prevblending[1];
 					ent->latched.prevblending[1] = frame;
-					ent->latched.sequencetime = gpGlobals->time;
+					ent->latched.sequencetime = gp_cl->time;
 					lerpFrac = 0.0f;
 				}
-				else lerpFrac = (gpGlobals->time - ent->latched.sequencetime) * ent->curstate.framerate;
+				else lerpFrac = (gp_cl->time - ent->latched.sequencetime) * ent->curstate.framerate;
 			}
 			else
 			{
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 0.0f;
 			}
 		}

ref/gl/gl_studio.c

@@ -174,14 +174,14 @@ static void R_StudioSetupTimings( void )
 	if( RI.drawWorld )
 	{
 		// synchronize with server time
-		g_studio.time = gpGlobals->time;
-		g_studio.frametime = gpGlobals->time - gpGlobals->oldtime;
+		g_studio.time = gp_cl->time;
+		g_studio.frametime = gp_cl->time - gp_cl->oldtime;
 	}
 	else
 	{
 		// menu stuff
-		g_studio.time = gpGlobals->realtime;
-		g_studio.frametime = gpGlobals->frametime;
+		g_studio.time = gp_host->realtime;
+		g_studio.frametime = gp_host->frametime;
 	}
 }
 
@@ -424,8 +424,8 @@ pfnGetEngineTimes
 static void pfnGetEngineTimes( int *framecount, double *current, double *old )
 {
 	if( framecount ) *framecount = tr.realframecount;
-	if( current ) *current = gpGlobals->time;
-	if( old ) *old =   gpGlobals->oldtime;
+	if( current ) *current = gp_cl->time;
+	if( old ) *old =   gp_cl->oldtime;
 }
 
 /*
@@ -596,12 +596,12 @@ void R_StudioSetUpTransform( cl_entity_t *e )
 	VectorCopy( e->angles, angles );
 
 	// interpolate monsters position (moved into UpdateEntityFields by user request)
-	if( e->curstate.movetype == MOVETYPE_STEP && !FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_COMPUTE_STUDIO_LERP ))
+	if( e->curstate.movetype == MOVETYPE_STEP && !FBitSet( gp_host->features, ENGINE_COMPUTE_STUDIO_LERP ))
 	{
 		R_StudioLerpMovement( e, g_studio.time, origin, angles );
 	}
 
-	if( !FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_COMPENSATE_QUAKE_BUG ))
+	if( !FBitSet( gp_host->features, ENGINE_COMPENSATE_QUAKE_BUG ))
 		angles[PITCH] = -angles[PITCH]; // stupid quake bug
 
 	// don't rotate clients, only aim
@@ -1324,7 +1324,7 @@ R_StudioDynamicLight
 */
 void R_StudioDynamicLight( cl_entity_t *ent, alight_t *plight )
 {
-	movevars_t	*mv = gEngfuncs.pfnGetMoveVars();
+	movevars_t	*mv = tr.movevars;
 	vec3_t		lightDir, vecSrc, vecEnd;
 	vec3_t		origin, dist, finalLight;
 	float		add, radius, total;
@@ -1360,7 +1360,7 @@ void R_StudioDynamicLight( cl_entity_t *ent, alight_t *plight )
 		msurface_t	*psurf = NULL;
 		pmtrace_t		trace;
 
-		if( FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_WRITE_LARGE_COORD ))
+		if( FBitSet( gp_host->features, ENGINE_WRITE_LARGE_COORD ))
 		{
 			vecEnd[0] = origin[0] - mv->skyvec_x * 65536.0f;
 			vecEnd[1] = origin[1] - mv->skyvec_y * 65536.0f;
@@ -2242,8 +2242,7 @@ static void R_StudioDrawPoints( void )
 
 	g_studio.numverts = g_studio.numelems = 0;
 
-	// safety bounding the skinnum
-	m_skinnum = bound( 0, RI.currententity->curstate.skin, ( m_pStudioHeader->numskinfamilies - 1 ));
+	m_skinnum = RI.currententity->curstate.skin;
 	ptexture = (mstudiotexture_t *)((byte *)m_pStudioHeader + m_pStudioHeader->textureindex);
 	pvertbone = ((byte *)m_pStudioHeader + m_pSubModel->vertinfoindex);
 	pnormbone = ((byte *)m_pStudioHeader + m_pSubModel->norminfoindex);
@@ -2253,7 +2252,8 @@ static void R_StudioDrawPoints( void )
 	pstudionorms = (vec3_t *)((byte *)m_pStudioHeader + m_pSubModel->normindex);
 
 	pskinref = (short *)((byte *)m_pStudioHeader + m_pStudioHeader->skinindex);
-	if( m_skinnum != 0 ) pskinref += (m_skinnum * m_pStudioHeader->numskinref);
+	if( m_skinnum > 0 && m_skinnum < m_pStudioHeader->numskinfamilies )
+		pskinref += (m_skinnum * m_pStudioHeader->numskinref);
 
 	if( FBitSet( m_pStudioHeader->flags, STUDIO_HAS_BONEWEIGHTS ) && m_pSubModel->blendvertinfoindex != 0 && m_pSubModel->blendnorminfoindex != 0 )
 	{
@@ -2756,7 +2756,7 @@ static void R_StudioClientEvents( void )
 
 		ClearBits( e->curstate.effects, EF_MUZZLEFLASH );
 		VectorCopy( e->attachment[0], el->origin );
-		el->die = gpGlobals->time + 0.05f;
+		el->die = gp_cl->time + 0.05f;
 		el->color.r = 255;
 		el->color.g = 192;
 		el->color.b = 64;
@@ -2772,7 +2772,7 @@ static void R_StudioClientEvents( void )
 		return;
 
 	end = R_StudioEstimateFrame( e, pseqdesc, g_studio.time );
-	start = end - e->curstate.framerate * gpGlobals->frametime * pseqdesc->fps;
+	start = end - e->curstate.framerate * gp_host->frametime * pseqdesc->fps;
 	pevent = (mstudioevent_t *)((byte *)m_pStudioHeader + pseqdesc->eventindex);
 
 	if( e->latched.sequencetime == e->curstate.animtime )
@@ -3297,7 +3297,7 @@ static int R_StudioDrawPlayer( int flags, entity_state_t *pplayer )
 
 	m_nPlayerIndex = pplayer->number - 1;
 
-	if( m_nPlayerIndex < 0 || m_nPlayerIndex >= ENGINE_GET_PARM( PARM_MAX_CLIENTS ) )
+	if( m_nPlayerIndex < 0 || m_nPlayerIndex >= gp_cl->maxclients )
 		return 0;
 
 	RI.currentmodel = R_StudioSetupPlayerModel( m_nPlayerIndex );
@@ -3379,7 +3379,7 @@ static int R_StudioDrawPlayer( int flags, entity_state_t *pplayer )
 			RI.currententity->curstate.body = 255;
 		}
 
-		if( !( !gpGlobals->developer && ENGINE_GET_PARM( PARM_MAX_CLIENTS ) == 1 ) && ( RI.currentmodel == RI.currententity->model ))
+		if( !( !gpGlobals->developer && gp_cl->maxclients == 1 ) && ( RI.currentmodel == RI.currententity->model ))
 			RI.currententity->curstate.body = 1; // force helmet
 
 		lighting.plightvec = dir;
@@ -3442,7 +3442,7 @@ static int R_StudioDrawModel( int flags )
 		int		result;
 
 		if( RI.currententity->curstate.renderamt <= 0 ||
-			RI.currententity->curstate.renderamt > ENGINE_GET_PARM( PARM_MAX_CLIENTS ) )
+			RI.currententity->curstate.renderamt > gp_cl->maxclients )
 			return 0;
 
 		// get copy of player
@@ -3527,7 +3527,7 @@ static int R_StudioDrawModel( int flags )
 R_StudioDrawModelInternal
 =================
 */
-void R_StudioDrawModelInternal( cl_entity_t *e, int flags )
+static void R_StudioDrawModelInternal( cl_entity_t *e, int flags )
 {
 	if( !RI.drawWorld )
 	{
@@ -3560,22 +3560,42 @@ void R_DrawStudioModel( cl_entity_t *e )
 	{
 		R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
 	}
-	else
+	else if( e->curstate.movetype == MOVETYPE_FOLLOW && e->curstate.aiment > 0 )
 	{
-		if( e->curstate.movetype == MOVETYPE_FOLLOW && e->curstate.aiment > 0 )
-		{
-			cl_entity_t *parent = CL_GetEntityByIndex( e->curstate.aiment );
+		cl_entity_t *parent = CL_GetEntityByIndex( e->curstate.aiment ), **entities;
+		uint i, num_entities;
 
-			if( parent && parent->model && parent->model->type == mod_studio )
-			{
-				RI.currententity = parent;
-				R_StudioDrawModelInternal( RI.currententity, 0 );
-				VectorCopy( parent->curstate.origin, e->curstate.origin );
-				VectorCopy( parent->origin, e->origin );
-				RI.currententity = e;
-			}
+		if( !parent || !parent->model || parent->model->type != mod_studio )
+			return;
+
+		if( R_OpaqueEntity( parent ))
+		{
+			entities = tr.draw_list->solid_entities;
+			num_entities = tr.draw_list->num_solid_entities;
+		}
+		else
+		{
+			entities = tr.draw_list->trans_entities;
+			num_entities = tr.draw_list->num_solid_entities;
 		}
 
+		for( i = 0; i < num_entities; i++ )
+		{
+			if( (*entities)[i].index != e->curstate.aiment )
+				continue;
+
+			RI.currententity = &(*entities)[i];
+			R_StudioDrawModelInternal( RI.currententity, 0 );
+			VectorCopy( RI.currententity->curstate.origin, e->curstate.origin );
+			VectorCopy( RI.currententity->origin, e->origin );
+			RI.currententity = e;
+
+			R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
+			break;
+		}
+	}
+	else
+	{
 		R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
 	}
 }
@@ -3607,7 +3627,7 @@ void R_RunViewmodelEvents( void )
 
 	R_StudioSetupTimings();
 
-	gEngfuncs.GetPredictedOrigin( simorg );
+	VectorCopy( gp_cl->simorg, simorg );
 	for( i = 0; i < 4; i++ )
 		VectorCopy( simorg, RI.currententity->attachment[i] );
 	RI.currentmodel = RI.currententity->model;
@@ -3756,7 +3776,7 @@ static void R_StudioLoadTexture( model_t *mod, studiohdr_t *phdr, mstudiotexture
 	gEngfuncs.Image_SetMDLPointer((byte *)phdr + ptexture->index);
 	size = sizeof( mstudiotexture_t ) + ptexture->width * ptexture->height + 768;
 
-	if( FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_IMPROVED_LINETRACE ) && FBitSet( ptexture->flags, STUDIO_NF_MASKED ))
+	if( FBitSet( gp_host->features, ENGINE_IMPROVED_LINETRACE ) && FBitSet( ptexture->flags, STUDIO_NF_MASKED ))
 		flags |= TF_KEEP_SOURCE; // Paranoia2 texture alpha-tracing
 
 	// build the texname

ref/gl/gl_warp.c

@@ -332,7 +332,7 @@ void R_AddSkyBoxSurface( msurface_t *fa )
 	float	*v;
 	int	i;
 
-	if( ENGINE_GET_PARM( PARM_SKY_SPHERE ) && fa->polys && !tr.fCustomSkybox )
+	if( FBitSet( tr.world->flags, FWORLD_SKYSPHERE ) && fa->polys && !FBitSet( tr.world->flags, FWORLD_CUSTOM_SKYBOX ))
 	{
 		glpoly_t	*p = fa->polys;
 
@@ -376,7 +376,7 @@ void R_UnloadSkybox( void )
 	tr.skyboxbasenum = SKYBOX_BASE_NUM;	// set skybox base (to let some mods load hi-res skyboxes)
 
 	memset( tr.skyboxTextures, 0, sizeof( tr.skyboxTextures ));
-	tr.fCustomSkybox = false;
+	ClearBits( tr.world->flags, FWORLD_CUSTOM_SKYBOX );
 }
 
 /*
@@ -478,7 +478,7 @@ void R_SetupSky( const char *skyboxname )
 
 	if( i == 6 )
 	{
-		tr.fCustomSkybox = true;
+		SetBits( tr.world->flags, FWORLD_CUSTOM_SKYBOX );
 		gEngfuncs.Con_DPrintf( "done\n" );
 		return; // loaded
 	}
@@ -526,7 +526,7 @@ static void R_CloudTexCoord( vec3_t v, float speed, float *s, float *t )
 	float	length, speedscale;
 	vec3_t	dir;
 
-	speedscale = gpGlobals->time * speed;
+	speedscale = gp_cl->time * speed;
 	speedscale -= (int)speedscale & ~127;
 
 	VectorSubtract( v, RI.vieworg, dir );
@@ -813,8 +813,8 @@ void EmitWaterPolys( msurface_t *warp, qboolean reverse )
 		{
 			if( waveHeight )
 			{
-				nv = r_turbsin[(int)(gpGlobals->time * 160.0f + v[1] + v[0]) & 255] + 8.0f;
-				nv = (r_turbsin[(int)(v[0] * 5.0f + gpGlobals->time * 171.0f - v[1]) & 255] + 8.0f ) * 0.8f + nv;
+				nv = r_turbsin[(int)(gp_cl->time * 160.0f + v[1] + v[0]) & 255] + 8.0f;
+				nv = (r_turbsin[(int)(v[0] * 5.0f + gp_cl->time * 171.0f - v[1]) & 255] + 8.0f ) * 0.8f + nv;
 				nv = nv * waveHeight + v[2];
 			}
 			else nv = v[2];
@@ -824,8 +824,8 @@ void EmitWaterPolys( msurface_t *warp, qboolean reverse )
 
 			if( !r_ripple.value )
 			{
-				s = os + r_turbsin[(int)((ot * 0.125f + gpGlobals->time) * TURBSCALE) & 255];
-				t = ot + r_turbsin[(int)((os * 0.125f + gpGlobals->time) * TURBSCALE) & 255];
+				s = os + r_turbsin[(int)((ot * 0.125f + gp_cl->time) * TURBSCALE) & 255];
+				t = ot + r_turbsin[(int)((os * 0.125f + gp_cl->time) * TURBSCALE) & 255];
 			}
 			else
 			{
@@ -865,7 +865,7 @@ void R_ResetRipples( void )
 {
 	g_ripple.curbuf = g_ripple.buf[0];
 	g_ripple.oldbuf = g_ripple.buf[1];
-	g_ripple.time = g_ripple.oldtime = gpGlobals->time - 0.1;
+	g_ripple.time = g_ripple.oldtime = gp_cl->time - 0.1;
 	memset( g_ripple.buf, 0, sizeof( g_ripple.buf ));
 }
 
@@ -936,14 +936,14 @@ static int MostSignificantBit( unsigned int v )
 
 void R_AnimateRipples( void )
 {
-	double frametime = gpGlobals->time - g_ripple.time;
+	double frametime = gp_cl->time - g_ripple.time;
 
 	g_ripple.update = r_ripple.value && frametime >= r_ripple_updatetime.value;
 
 	if( !g_ripple.update )
 		return;
 
-	g_ripple.time = gpGlobals->time;
+	g_ripple.time = gp_cl->time;
 
 	R_SwapBufs();
 

ref/soft/r_beams.c

@@ -611,7 +611,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 	if( pnew )
 	{
 		VectorCopy( pbeam->source, pnew->org );
-		pnew->die = gpGlobals->time + pbeam->amplitude;
+		pnew->die = gp_cl->time + pbeam->amplitude;
 		VectorClear( pnew->vel );
 
 		pnew->next = particles;
@@ -658,7 +658,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 	VectorMA( delta, -pbeam->width, normal, last2 );
 
 	div = 1.0f / pbeam->amplitude;
-	fraction = ( pbeam->die - gpGlobals->time ) * div;
+	fraction = ( pbeam->die - gp_cl->time ) * div;
 
 	vLast = 0.0f;
 	vStep = 1.0f;
@@ -694,7 +694,7 @@ void R_DrawBeamFollow( BEAM *pbeam, float frametime )
 
 		if( particles->next != NULL )
 		{
-			fraction = (particles->die - gpGlobals->time) * div;
+			fraction = (particles->die - gp_cl->time) * div;
 		}
 		else
 		{
@@ -880,12 +880,8 @@ static qboolean R_BeamComputePoint( int beamEnt, vec3_t pt )
 	// get attachment
 	if( attach > 0 )
 		VectorCopy( ent->attachment[attach - 1], pt );
-	else if( ent->index == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) )
-	{
-		vec3_t simorg;
-		gEngfuncs.GetPredictedOrigin( simorg );
-		VectorCopy( simorg, pt );
-	}
+	else if( ent->index == ( gp_cl->playernum + 1 ))
+		VectorCopy( gp_cl->simorg, pt );
 	else VectorCopy( ent->origin, pt );
 
 	return true;
@@ -929,7 +925,7 @@ qboolean R_BeamRecomputeEndpoints( BEAM *pbeam )
 		else if( !FBitSet( pbeam->flags, FBEAM_FOREVER ))
 		{
 			ClearBits( pbeam->flags, FBEAM_ENDENTITY );
-			pbeam->die = gpGlobals->time;
+			pbeam->die = gp_cl->time;
 			return false;
 		}
 		else
@@ -962,7 +958,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 	if( !model || model->type != mod_sprite )
 	{
 		pbeam->flags &= ~FBEAM_ISACTIVE; // force to ignore
-		pbeam->die = gpGlobals->time;
+		pbeam->die = gp_cl->time;
 		return;
 	}
 
@@ -1020,7 +1016,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 	if( pbeam->flags & ( FBEAM_FADEIN|FBEAM_FADEOUT ))
 	{
 		// update life cycle
-		pbeam->t = pbeam->freq + ( pbeam->die - gpGlobals->time );
+		pbeam->t = pbeam->freq + ( pbeam->die - gp_cl->time );
 		if( pbeam->t != 0.0f ) pbeam->t = 1.0f - pbeam->freq / pbeam->t;
 	}
 
@@ -1068,7 +1064,7 @@ void R_BeamDraw( BEAM *pbeam, float frametime )
 
 	TriRenderMode( FBitSet( pbeam->flags, FBEAM_SOLID ) ? kRenderNormal : kRenderTransAdd );
 
-	if( !TriSpriteTexture( model, (int)(pbeam->frame + pbeam->frameRate * gpGlobals->time) % pbeam->frameCount ))
+	if( !TriSpriteTexture( model, (int)(pbeam->frame + pbeam->frameRate * gp_cl->time) % pbeam->frameCount ))
 	{
 		ClearBits( pbeam->flags, FBEAM_ISACTIVE );
 		return;
@@ -1173,8 +1169,8 @@ static void R_BeamSetup( BEAM *pbeam, vec3_t start, vec3_t end, int modelIndex,
 	VectorCopy( end, pbeam->target );
 	VectorSubtract( end, start, pbeam->delta );
 
-	pbeam->freq = speed * gpGlobals->time;
-	pbeam->die = life + gpGlobals->time;
+	pbeam->freq = speed * gp_cl->time;
+	pbeam->die = life + gp_cl->time;
 	pbeam->amplitude = amplitude;
 	pbeam->brightness = brightness;
 	pbeam->width = width;
@@ -1304,7 +1300,7 @@ void GAME_EXPORT CL_DrawBeams( int fTrans, BEAM *active_beams )
 		if( !fTrans && !FBitSet( pBeam->flags, FBEAM_SOLID ))
 			continue;
 
-		R_BeamDraw( pBeam, gpGlobals->time -   gpGlobals->oldtime );
+		R_BeamDraw( pBeam, gp_cl->time -   gp_cl->oldtime );
 	}
 
 	//pglShadeModel( GL_FLAT );

ref/soft/r_bsp.c

@@ -950,7 +950,7 @@ void R_RenderWorld (void)
 
 	// auto cycle the world frame for texture animation
 	RI.currententity = CL_GetEntityByIndex(0);
-	//RI.currententity->frame = (int)(gpGlobals->time*2);
+	//RI.currententity->frame = (int)(gp_cl->time*2);
 
 	VectorCopy (RI.vieworg, tr.modelorg);
 	RI.currentmodel = WORLDMODEL;

ref/soft/r_context.c

@@ -17,6 +17,8 @@ GNU General Public License for more details.
 
 ref_api_t      gEngfuncs;
 ref_globals_t *gpGlobals;
+ref_client_t  *gp_cl;
+ref_host_t    *gp_host;
 gl_globals_t tr;
 ref_speeds_t r_stats;
 poolhandle_t r_temppool;
@@ -169,7 +171,7 @@ static int GL_RefGetParm( int parm, int arg )
 	case PARM_STENCIL_ACTIVE:
 		return 0; //glState.stencilEnabled;
 	case PARM_SKY_SPHERE:
-		return ENGINE_GET_PARM_( parm, arg ) && !tr.fCustomSkybox;
+		return 0; // ref_soft doesn't support sky sphere
 	default:
 		return ENGINE_GET_PARM_( parm, arg );
 	}
@@ -564,5 +566,8 @@ int EXPORT GAME_EXPORT GetRefAPI( int version, ref_interface_t *funcs, ref_api_t
 	memcpy( &gEngfuncs, engfuncs, sizeof( ref_api_t ));
 	gpGlobals = globals;
 
+	gp_cl = (ref_client_t *)ENGINE_GET_PARM( PARM_GET_CLIENT_PTR );
+	gp_host = (ref_host_t *)ENGINE_GET_PARM( PARM_GET_HOST_PTR );
+
 	return REF_API_VERSION;
 }

ref/soft/r_edge.c

@@ -864,9 +864,9 @@ void D_CalcGradients (msurface_t *pface)
 	{
 
 		if(pface->flags & SURF_DRAWTURB)
-			sadjust += 0x10000 * (-128 * ( (gpGlobals->time * 0.25f) - (int)(gpGlobals->time * 0.25f) ));
+			sadjust += 0x10000 * (-128 * ( (gp_cl->time * 0.25f) - (int)(gp_cl->time * 0.25f) ));
 		else
-			sadjust += 0x10000 * (-128 * ( (gpGlobals->time * 0.77f) - (int)(gpGlobals->time * 0.77f) ));
+			sadjust += 0x10000 * (-128 * ( (gp_cl->time * 0.77f) - (int)(gp_cl->time * 0.77f) ));
 		bbextents = ((pface->extents[0] << 16) >> miplevel) - 1;
 	}
 	else

ref/soft/r_light.c

@@ -39,7 +39,7 @@ void GAME_EXPORT CL_RunLightStyles( void )
 {
 	int		i, k, flight, clight;
 	float		l, lerpfrac, backlerp;
-	float		frametime = (gpGlobals->time -   gpGlobals->oldtime);
+	float		frametime = (gp_cl->time -   gp_cl->oldtime);
 	float		scale;
 	lightstyle_t	*ls;
 
@@ -58,7 +58,7 @@ void GAME_EXPORT CL_RunLightStyles( void )
 			continue;
 		}
 
-		if( !ENGINE_GET_PARM( PARAM_GAMEPAUSED ) && frametime <= 0.1f )
+		if( !gp_cl->paused && frametime <= 0.1f )
 			ls->time += frametime; // evaluate local time
 
 		flight = (int)Q_floor( ls->time * 10 );
@@ -163,7 +163,7 @@ void R_PushDlights( void )
 	{
 		l = gEngfuncs.GetDynamicLight( i );
 
-		if( l->die < gpGlobals->time || !l->radius )
+		if( l->die < gp_cl->time || !l->radius )
 			continue;
 
 		//if( GL_FrustumCullSphere( &RI.frustum, l->origin, l->radius, 15 ))

ref/soft/r_local.h

@@ -78,10 +78,10 @@ extern poolhandle_t r_temppool;
 #define RP_NONVIEWERREF	(RP_ENVVIEW)
 #define R_ModelOpaque( rm )	( rm == kRenderNormal )
 #define R_StaticEntity( ent )	( VectorIsNull( ent->origin ) && VectorIsNull( ent->angles ))
-#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == gEngfuncs.GetPlayerIndex() && e->player )
+#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == ( gp_cl->playernum + 1 ) && e->player )
 #define RP_NORMALPASS()	( FBitSet( RI.params, RP_NONVIEWERREF ) == 0 )
 
-#define CL_IsViewEntityLocalPlayer() ( ENGINE_GET_PARM( PARM_VIEWENT_INDEX ) == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) )
+#define CL_IsViewEntityLocalPlayer() ( gp_cl->viewentity == ( gp_cl->playernum + 1 ))
 
 #define CULL_VISIBLE	0		// not culled
 #define CULL_BACKSIDE	1		// backside of transparent wall
@@ -289,7 +289,6 @@ typedef struct
 	// cull info
 	vec3_t		modelorg;		// relative to viewpoint
 
-	qboolean fCustomSkybox;
 	int sample_size;
 	uint sample_bits;
 	qboolean map_unload;
@@ -297,7 +296,6 @@ typedef struct
 	// get from engine
 	cl_entity_t *entities;
 	movevars_t *movevars;
-	model_t **models;
 	color24 *palette;
 	cl_entity_t *viewent;
 
@@ -478,6 +476,7 @@ void R_SetupRefParams( const struct ref_viewpass_s *rvp );
 void R_TranslateForEntity( cl_entity_t *e );
 void R_RotateForEntity( cl_entity_t *e );
 void R_SetupGL( qboolean set_gl_state );
+qboolean R_OpaqueEntity( cl_entity_t *ent );
 void R_AllowFog( qboolean allowed );
 void R_SetupFrustum( void );
 void R_FindViewLeaf( void );
@@ -676,25 +675,33 @@ void TriBrightness( float brightness );
 #define ENGINE_GET_PARM_ (*gEngfuncs.EngineGetParm)
 #define ENGINE_GET_PARM( parm ) ENGINE_GET_PARM_( (parm), 0 )
 
+extern ref_api_t      gEngfuncs;
+extern ref_globals_t *gpGlobals;
+extern ref_client_t  *gp_cl;
+extern ref_host_t    *gp_host;
+
+DECLARE_ENGINE_SHARED_CVAR_LIST()
+
 //
 // helper funcs
 //
 static inline cl_entity_t *CL_GetEntityByIndex( int index )
 {
+	if( unlikely( index < 0 || index >= tr.max_entities || !tr.entities ))
+		return NULL;
+
 	return &tr.entities[index];
 }
 
 static inline model_t *CL_ModelHandle( int index )
 {
-	return tr.models[index];
+	if( unlikely( index < 0 || index >= gp_cl->nummodels ))
+		return NULL;
+
+	return gp_cl->models[index];
 }
 
-#define WORLDMODEL (tr.models[1])
-
-extern ref_api_t      gEngfuncs;
-extern ref_globals_t *gpGlobals;
-
-DECLARE_ENGINE_SHARED_CVAR_LIST()
+#define WORLDMODEL (gp_cl->models[1])
 
 // todo: gl_cull.c
 #define R_CullModel(...) 0

ref/soft/r_main.c

@@ -145,7 +145,7 @@ R_OpaqueEntity
 Opaque entity can be brush or studio model but sprite
 ===============
 */
-static qboolean R_OpaqueEntity( cl_entity_t *ent )
+qboolean R_OpaqueEntity( cl_entity_t *ent )
 {
 	int rendermode = R_GetEntityRenderMode( ent );
 
@@ -441,8 +441,8 @@ void R_SetupFrustum( void )
 
 	/*if( RP_NORMALPASS() && ( ENGINE_GET_PARM( PARM_WATER_LEVEL ) >= 3 ) && ENGINE_GET_PARM( PARM_QUAKE_COMPATIBLE ))
 	{
-		RI.fov_x = atan( tan( DEG2RAD( RI.fov_x ) / 2 ) * ( 0.97 + sin( gpGlobals->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
-		RI.fov_y = atan( tan( DEG2RAD( RI.fov_y ) / 2 ) * ( 1.03 - sin( gpGlobals->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
+		RI.fov_x = atan( tan( DEG2RAD( RI.fov_x ) / 2 ) * ( 0.97 + sin( gp_cl->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
+		RI.fov_y = atan( tan( DEG2RAD( RI.fov_y ) / 2 ) * ( 1.03 - sin( gp_cl->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
 	}*/
 
 	// build the transformation matrix for the given view angles
@@ -1171,7 +1171,7 @@ void R_DrawBEntitiesOnList (void)
 			dlight_t *l = gEngfuncs.GetDynamicLight( k );
 			vec3_t origin_l, oldorigin;
 
-			if( l->die < gpGlobals->time || !l->radius )
+			if( l->die < gp_cl->time || !l->radius )
 				continue;
 
 			VectorCopy( l->origin, oldorigin ); // save lightorigin
@@ -1326,7 +1326,7 @@ void R_DrawBrushModel(cl_entity_t *pent)
 			dlight_t *l = gEngfuncs.GetDynamicLight( k );
 			vec3_t origin_l, oldorigin;
 
-			if( l->die < gpGlobals->time || !l->radius )
+			if( l->die < gp_cl->time || !l->radius )
 				continue;
 
 			VectorCopy( l->origin, oldorigin ); // save lightorigin
@@ -1561,7 +1561,7 @@ void GAME_EXPORT R_RenderScene( void )
 
 	// frametime is valid only for normal pass
 	if( RP_NORMALPASS( ))
-		tr.frametime = gpGlobals->time -   gpGlobals->oldtime;
+		tr.frametime = gp_cl->time -   gp_cl->oldtime;
 	else tr.frametime = 0.0;
 
 	// begin a new frame
@@ -1939,10 +1939,9 @@ qboolean GAME_EXPORT R_Init( void )
 	}
 
 	// see R_ProcessEntData for tr.entities initialization
-	tr.models = gEngfuncs.pfnGetModels();
-	tr.movevars = gEngfuncs.pfnGetMoveVars();
-	tr.palette = gEngfuncs.CL_GetPaletteColor();
-	tr.viewent = gEngfuncs.GetViewModel();
+	tr.movevars = (movevars_t *)ENGINE_GET_PARM( PARM_GET_MOVEVARS_PTR );
+	tr.palette = (color24 *)ENGINE_GET_PARM( PARM_GET_PALETTE_PTR );
+	tr.viewent = (cl_entity_t *)ENGINE_GET_PARM( PARM_GET_VIEWENT_PTR );
 
 	R_InitBlit( glblit );
 
@@ -1985,16 +1984,16 @@ int CL_FxBlend( cl_entity_t *e )
 	switch( e->curstate.renderfx )
 	{
 	case kRenderFxPulseSlowWide:
-		blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 2 + offset );
+		blend = e->curstate.renderamt + 0x40 * sin( gp_cl->time * 2 + offset );
 		break;
 	case kRenderFxPulseFastWide:
-		blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 8 + offset );
+		blend = e->curstate.renderamt + 0x40 * sin( gp_cl->time * 8 + offset );
 		break;
 	case kRenderFxPulseSlow:
-		blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 2 + offset );
+		blend = e->curstate.renderamt + 0x10 * sin( gp_cl->time * 2 + offset );
 		break;
 	case kRenderFxPulseFast:
-		blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 8 + offset );
+		blend = e->curstate.renderamt + 0x10 * sin( gp_cl->time * 8 + offset );
 		break;
 	case kRenderFxFadeSlow:
 		if( RP_NORMALPASS( ))
@@ -2033,27 +2032,27 @@ int CL_FxBlend( cl_entity_t *e )
 		blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeSlow:
-		blend = 20 * sin( gpGlobals->time * 4 + offset );
+		blend = 20 * sin( gp_cl->time * 4 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeFast:
-		blend = 20 * sin( gpGlobals->time * 16 + offset );
+		blend = 20 * sin( gp_cl->time * 16 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxStrobeFaster:
-		blend = 20 * sin( gpGlobals->time * 36 + offset );
+		blend = 20 * sin( gp_cl->time * 36 + offset );
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxFlickerSlow:
-		blend = 20 * (sin( gpGlobals->time * 2 ) + sin( gpGlobals->time * 17 + offset ));
+		blend = 20 * (sin( gp_cl->time * 2 ) + sin( gp_cl->time * 17 + offset ));
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;
 	case kRenderFxFlickerFast:
-		blend = 20 * (sin( gpGlobals->time * 16 ) + sin( gpGlobals->time * 23 + offset ));
+		blend = 20 * (sin( gp_cl->time * 16 ) + sin( gp_cl->time * 23 + offset ));
 		if( blend < 0 ) blend = 0;
 		else blend = e->curstate.renderamt;
 		break;

ref/soft/r_part.c

@@ -86,7 +86,7 @@ void GAME_EXPORT CL_DrawParticles( double frametime, particle_t *cl_active_parti
 			p->color = bound( 0, p->color, 255 );
 			color = tr.palette[p->color];
 
-			alpha = 255 * (p->die - gpGlobals->time) * 16.0f;
+			alpha = 255 * (p->die - gp_cl->time) * 16.0f;
 			if( alpha > 255 || p->type == pt_static )
 				alpha = 255;
 
@@ -200,7 +200,7 @@ void GAME_EXPORT CL_DrawTracers( double frametime, particle_t *cl_active_tracers
 
 	for( p = cl_active_tracers; p; p = p->next )
 	{
-		atten = (p->die - gpGlobals->time);
+		atten = (p->die - gp_cl->time);
 		if( atten > 0.1f ) atten = 0.1f;
 
 		VectorScale( p->vel, ( p->ramp * atten ), delta );
@@ -268,7 +268,7 @@ void GAME_EXPORT CL_DrawTracers( double frametime, particle_t *cl_active_tracers
 			p->vel[1] *= scale;
 			p->vel[2] -= gravity;
 
-			p->packedColor = 255 * (p->die - gpGlobals->time) * 2;
+			p->packedColor = 255 * (p->die - gp_cl->time) * 2;
 			if( p->packedColor > 255 ) p->packedColor = 255;
 		}
 		else if( p->type == pt_slowgrav )

ref/soft/r_scan.c

@@ -100,7 +100,7 @@ void Turbulent8 (espan_t *pspan)
 	float			sdivz, tdivz, zi, z, du, dv, spancountminus1;
 	float			sdivz16stepu, tdivz16stepu, zi16stepu;
 
-	r_turb_turb = sintable + ((int)(gpGlobals->time*SPEED)&(CYCLE-1));
+	r_turb_turb = sintable + ((int)(gp_cl->time*SPEED)&(CYCLE-1));
 
 	r_turb_sstep = 0;	// keep compiler happy
 	r_turb_tstep = 0;	// ditto
@@ -239,7 +239,7 @@ void TurbulentZ8 (espan_t *pspan, int alpha1)
 	if( alpha == 0 )
 		return;
 
-	r_turb_turb = sintable + ((int)(gpGlobals->time*SPEED)&(CYCLE-1));
+	r_turb_turb = sintable + ((int)(gp_cl->time*SPEED)&(CYCLE-1));
 
 	r_turb_sstep = 0;	// keep compiler happy
 	r_turb_tstep = 0;	// ditto

ref/soft/r_sprite.c

@@ -430,7 +430,7 @@ mspriteframe_t *R_GetSpriteFrame( const model_t *pModel, int frame, float yaw )
 
 		// when loading in Mod_LoadSpriteGroup, we guaranteed all interval values
 		// are positive, so we don't have to worry about division by zero
-		targettime = gpGlobals->time - ((int)( gpGlobals->time / fullinterval )) * fullinterval;
+		targettime = gp_cl->time - ((int)( gp_cl->time / fullinterval )) * fullinterval;
 
 		for( i = 0; i < (numframes - 1); i++ )
 		{
@@ -494,25 +494,25 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 				// this can be happens when rendering switched between single and angled frames
 				// or change model on replace delta-entity
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 1.0f;
 			}
 
-			if( ent->latched.sequencetime < gpGlobals->time )
+			if( ent->latched.sequencetime < gp_cl->time )
 			{
 				if( frame != ent->latched.prevblending[1] )
 				{
 					ent->latched.prevblending[0] = ent->latched.prevblending[1];
 					ent->latched.prevblending[1] = frame;
-					ent->latched.sequencetime = gpGlobals->time;
+					ent->latched.sequencetime = gp_cl->time;
 					lerpFrac = 0.0f;
 				}
-				else lerpFrac = (gpGlobals->time - ent->latched.sequencetime) * 11.0f;
+				else lerpFrac = (gp_cl->time - ent->latched.sequencetime) * 11.0f;
 			}
 			else
 			{
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 0.0f;
 			}
 		}
@@ -526,7 +526,7 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 		{
 			// reset interpolation on change model
 			ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-			ent->latched.sequencetime = gpGlobals->time;
+			ent->latched.sequencetime = gp_cl->time;
 			lerpFrac = 0.0f;
 		}
 
@@ -541,7 +541,7 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 		numframes = pspritegroup->numframes;
 		fullinterval = pintervals[numframes-1];
 		jinterval = pintervals[1] - pintervals[0];
-		time = gpGlobals->time;
+		time = gp_cl->time;
 		jtime = 0.0f;
 
 		// when loading in Mod_LoadSpriteGroup, we guaranteed all interval values
@@ -580,25 +580,25 @@ float R_GetSpriteFrameInterpolant( cl_entity_t *ent, mspriteframe_t **oldframe,
 				// this can be happens when rendering switched between single and angled frames
 				// or change model on replace delta-entity
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 1.0f;
 			}
 
-			if( ent->latched.sequencetime < gpGlobals->time )
+			if( ent->latched.sequencetime < gp_cl->time )
 			{
 				if( frame != ent->latched.prevblending[1] )
 				{
 					ent->latched.prevblending[0] = ent->latched.prevblending[1];
 					ent->latched.prevblending[1] = frame;
-					ent->latched.sequencetime = gpGlobals->time;
+					ent->latched.sequencetime = gp_cl->time;
 					lerpFrac = 0.0f;
 				}
-				else lerpFrac = (gpGlobals->time - ent->latched.sequencetime) * ent->curstate.framerate;
+				else lerpFrac = (gp_cl->time - ent->latched.sequencetime) * ent->curstate.framerate;
 			}
 			else
 			{
 				ent->latched.prevblending[0] = ent->latched.prevblending[1] = frame;
-				ent->latched.sequencetime = gpGlobals->time;
+				ent->latched.sequencetime = gp_cl->time;
 				lerpFrac = 0.0f;
 			}
 		}

ref/soft/r_studio.c

@@ -163,14 +163,14 @@ static void R_StudioSetupTimings( void )
 	if( RI.drawWorld )
 	{
 		// synchronize with server time
-		g_studio.time = gpGlobals->time;
-		g_studio.frametime = gpGlobals->time -   gpGlobals->oldtime;
+		g_studio.time = gp_cl->time;
+		g_studio.frametime = gp_cl->time -   gp_cl->oldtime;
 	}
 	else
 	{
 		// menu stuff
-		g_studio.time = gpGlobals->realtime;
-		g_studio.frametime = gpGlobals->frametime;
+		g_studio.time = gp_host->realtime;
+		g_studio.frametime = gp_host->frametime;
 	}
 }
 
@@ -413,8 +413,8 @@ pfnGetEngineTimes
 static void pfnGetEngineTimes( int *framecount, double *current, double *old )
 {
 	if( framecount ) *framecount = tr.realframecount;
-	if( current ) *current = gpGlobals->time;
-	if( old ) *old =   gpGlobals->oldtime;
+	if( current ) *current = gp_cl->time;
+	if( old ) *old =   gp_cl->oldtime;
 }
 
 /*
@@ -585,12 +585,12 @@ void R_StudioSetUpTransform( cl_entity_t *e )
 	VectorCopy( e->angles, angles );
 
 	// interpolate monsters position (moved into UpdateEntityFields by user request)
-	if( e->curstate.movetype == MOVETYPE_STEP && !FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_COMPUTE_STUDIO_LERP ))
+	if( e->curstate.movetype == MOVETYPE_STEP && !FBitSet( gp_host->features, ENGINE_COMPUTE_STUDIO_LERP ))
 	{
 		R_StudioLerpMovement( e, g_studio.time, origin, angles );
 	}
 
-	if( !FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_COMPENSATE_QUAKE_BUG ))
+	if( !FBitSet( gp_host->features, ENGINE_COMPENSATE_QUAKE_BUG ))
 		angles[PITCH] = -angles[PITCH]; // stupid quake bug
 
 	// don't rotate clients, only aim
@@ -1320,7 +1320,7 @@ R_StudioDynamicLight
 */
 void R_StudioDynamicLight( cl_entity_t *ent, alight_t *plight )
 {
-	movevars_t	*mv = gEngfuncs.pfnGetMoveVars();
+	movevars_t	*mv = tr.movevars;
 	vec3_t		lightDir, vecSrc, vecEnd;
 	vec3_t		origin, dist, finalLight;
 	float		add, radius, total;
@@ -1356,7 +1356,7 @@ void R_StudioDynamicLight( cl_entity_t *ent, alight_t *plight )
 		msurface_t	*psurf = NULL;
 		pmtrace_t		trace;
 
-		if( FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_WRITE_LARGE_COORD ))
+		if( FBitSet( gp_host->features, ENGINE_WRITE_LARGE_COORD ))
 		{
 			vecEnd[0] = origin[0] - mv->skyvec_x * 65536.0f;
 			vecEnd[1] = origin[1] - mv->skyvec_y * 65536.0f;
@@ -2023,8 +2023,7 @@ static void R_StudioDrawPoints( void )
 
 	if( !m_pStudioHeader ) return;
 
-	// safety bounding the skinnum
-	m_skinnum = bound( 0, RI.currententity->curstate.skin, ( m_pStudioHeader->numskinfamilies - 1 ));
+	m_skinnum = RI.currententity->curstate.skin;
 	ptexture = (mstudiotexture_t *)((byte *)m_pStudioHeader + m_pStudioHeader->textureindex);
 	pvertbone = ((byte *)m_pStudioHeader + m_pSubModel->vertinfoindex);
 	pnormbone = ((byte *)m_pStudioHeader + m_pSubModel->norminfoindex);
@@ -2034,7 +2033,8 @@ static void R_StudioDrawPoints( void )
 	pstudionorms = (vec3_t *)((byte *)m_pStudioHeader + m_pSubModel->normindex);
 
 	pskinref = (short *)((byte *)m_pStudioHeader + m_pStudioHeader->skinindex);
-	if( m_skinnum != 0 ) pskinref += (m_skinnum * m_pStudioHeader->numskinref);
+	if( m_skinnum > 0 && m_skinnum < m_pStudioHeader->numskinfamilies )
+		pskinref += (m_skinnum * m_pStudioHeader->numskinref);
 
 	if( FBitSet( m_pStudioHeader->flags, STUDIO_HAS_BONEWEIGHTS ) && m_pSubModel->blendvertinfoindex != 0 && m_pSubModel->blendnorminfoindex != 0 )
 	{
@@ -2516,7 +2516,7 @@ static void R_StudioClientEvents( void )
 
 		ClearBits( e->curstate.effects, EF_MUZZLEFLASH );
 		VectorCopy( e->attachment[0], el->origin );
-		el->die = gpGlobals->time + 0.05f;
+		el->die = gp_cl->time + 0.05f;
 		el->color.r = 255;
 		el->color.g = 192;
 		el->color.b = 64;
@@ -2532,7 +2532,7 @@ static void R_StudioClientEvents( void )
 		return;
 
 	end = R_StudioEstimateFrame( e, pseqdesc, g_studio.time );
-	start = end - e->curstate.framerate * gpGlobals->frametime * pseqdesc->fps;
+	start = end - e->curstate.framerate * gp_host->frametime * pseqdesc->fps;
 	pevent = (mstudioevent_t *)((byte *)m_pStudioHeader + pseqdesc->eventindex);
 
 	if( e->latched.sequencetime == e->curstate.animtime )
@@ -3063,7 +3063,7 @@ static int R_StudioDrawPlayer( int flags, entity_state_t *pplayer )
 
 	m_nPlayerIndex = pplayer->number - 1;
 
-	if( m_nPlayerIndex < 0 || m_nPlayerIndex >= ENGINE_GET_PARM( PARM_MAX_CLIENTS ) )
+	if( m_nPlayerIndex < 0 || m_nPlayerIndex >= gp_cl->maxclients )
 		return 0;
 
 	RI.currentmodel = R_StudioSetupPlayerModel( m_nPlayerIndex );
@@ -3145,7 +3145,7 @@ static int R_StudioDrawPlayer( int flags, entity_state_t *pplayer )
 			RI.currententity->curstate.body = 255;
 		}
 
-		if( !( !gpGlobals->developer && ENGINE_GET_PARM( PARM_MAX_CLIENTS ) == 1 ) && ( RI.currentmodel == RI.currententity->model ))
+		if( !( !gpGlobals->developer && gp_cl->maxclients == 1 ) && ( RI.currentmodel == RI.currententity->model ))
 			RI.currententity->curstate.body = 1; // force helmet
 
 		lighting.plightvec = dir;
@@ -3208,7 +3208,7 @@ static int R_StudioDrawModel( int flags )
 		int		result;
 
 		if( RI.currententity->curstate.renderamt <= 0 ||
-			RI.currententity->curstate.renderamt > ENGINE_GET_PARM( PARM_MAX_CLIENTS ) )
+			RI.currententity->curstate.renderamt > gp_cl->maxclients )
 			return 0;
 
 		// get copy of player
@@ -3293,7 +3293,7 @@ static int R_StudioDrawModel( int flags )
 R_StudioDrawModelInternal
 =================
 */
-void R_StudioDrawModelInternal( cl_entity_t *e, int flags )
+static void R_StudioDrawModelInternal( cl_entity_t *e, int flags )
 {
 	if( !RI.drawWorld )
 	{
@@ -3326,26 +3326,47 @@ void R_DrawStudioModel( cl_entity_t *e )
 	{
 		R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
 	}
-	else
+	else if( e->curstate.movetype == MOVETYPE_FOLLOW && e->curstate.aiment > 0 )
 	{
-		if( e->curstate.movetype == MOVETYPE_FOLLOW && e->curstate.aiment > 0 )
-		{
-			cl_entity_t *parent = CL_GetEntityByIndex( e->curstate.aiment );
+		cl_entity_t *parent = CL_GetEntityByIndex( e->curstate.aiment ), **entities;
+		uint i, num_entities;
 
-			if( parent && parent->model && parent->model->type == mod_studio )
-			{
-				RI.currententity = parent;
-				R_StudioDrawModelInternal( RI.currententity, 0 );
-				VectorCopy( parent->curstate.origin, e->curstate.origin );
-				VectorCopy( parent->origin, e->origin );
-				RI.currententity = e;
-			}
+		if( !parent || !parent->model || parent->model->type != mod_studio )
+			return;
+
+		if( R_OpaqueEntity( parent ))
+		{
+			entities = tr.draw_list->solid_entities;
+			num_entities = tr.draw_list->num_solid_entities;
+		}
+		else
+		{
+			entities = tr.draw_list->trans_entities;
+			num_entities = tr.draw_list->num_solid_entities;
 		}
 
+		for( i = 0; i < num_entities; i++ )
+		{
+			if( (*entities)[i].index != e->curstate.aiment )
+				continue;
+
+			RI.currententity = &(*entities)[i];
+			R_StudioDrawModelInternal( RI.currententity, 0 );
+			VectorCopy( RI.currententity->curstate.origin, e->curstate.origin );
+			VectorCopy( RI.currententity->origin, e->origin );
+			RI.currententity = e;
+
+			R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
+			break;
+		}
+	}
+	else
+	{
 		R_StudioDrawModelInternal( e, STUDIO_RENDER|STUDIO_EVENTS );
 	}
 }
 
+
 /*
 =================
 R_RunViewmodelEvents
@@ -3373,7 +3394,7 @@ void R_RunViewmodelEvents( void )
 
 	R_StudioSetupTimings();
 
-	gEngfuncs.GetPredictedOrigin( simorg );
+	VectorCopy( gp_cl->simorg, simorg );
 	for( i = 0; i < 4; i++ )
 		VectorCopy( simorg, RI.currententity->attachment[i] );
 	RI.currentmodel = RI.currententity->model;
@@ -3538,7 +3559,7 @@ static void R_StudioLoadTexture( model_t *mod, studiohdr_t *phdr, mstudiotexture
 	gEngfuncs.Image_SetMDLPointer((byte *)phdr + ptexture->index);
 	size = sizeof( mstudiotexture_t ) + ptexture->width * ptexture->height + 768;
 
-	if( FBitSet( ENGINE_GET_PARM( PARM_FEATURES ), ENGINE_LOAD_DELUXEDATA ) && FBitSet( ptexture->flags, STUDIO_NF_MASKED ))
+	if( FBitSet( gp_host->features, ENGINE_LOAD_DELUXEDATA ) && FBitSet( ptexture->flags, STUDIO_NF_MASKED ))
 		flags |= TF_KEEP_SOURCE; // Paranoia2 texture alpha-tracing
 
 	// build the texname

ref/soft/r_surf.c

@@ -401,7 +401,7 @@ texture_t *R_TextureAnim( texture_t *b )
 			speed = 10;
 		else speed = 20;
 
-		reletive = (int)(gpGlobals->time * speed) % base->anim_total;
+		reletive = (int)(gp_cl->time * speed) % base->anim_total;
 	}
 
 
@@ -455,7 +455,7 @@ texture_t *R_TextureAnimation( msurface_t *s )
 			speed = 10;
 		else speed = 20;
 
-		reletive = (int)(gpGlobals->time * speed) % base->anim_total;
+		reletive = (int)(gp_cl->time * speed) % base->anim_total;
 	}
 
 	count = 0;

utils/mdldec/mdldec.c

@@ -385,7 +385,7 @@ static qboolean LoadMDL( const char *modelname )
 			}
 		}
 
-		if( filesize < sizeof( studiohdr_t ) || filesize != model_hdr->length )
+		if( filesize < sizeof( studiohdr_t ) || filesize != texture_hdr->length )
 		{
 			fprintf( stderr, "ERROR: Wrong file size! File %s may be corrupted!\n", texturename );
 			return false;
@@ -427,7 +427,7 @@ static qboolean LoadMDL( const char *modelname )
 				return false;
 			}
 
-			if( filesize < sizeof( studiohdr_t ) || filesize != model_hdr->length )
+			if( filesize < sizeof( studiohdr_t ) || filesize != anim_hdr[i]->length )
 			{
 				fprintf( stderr, "ERROR: Wrong file size! File %s may be corrupted!\n", seqgroupname );
 				return false;

utils/mdldec/smd.c

@@ -123,19 +123,13 @@ ProperBoneRotationZ
 */
 static void ProperBoneRotationZ( vec_t *motion, float angle )
 {
-	float	c, s, x, y;
-	float	rot;
+	float	tmp, rot;
 
 	rot = DEG2RAD( angle );
 
-	s = sin( rot );
-	c = cos( rot );
-
-	x = motion[0];
-	y = motion[1];
-
-	motion[0] = c * x - s * y;
-	motion[1] = s * x + c * y;
+	tmp = motion[0];
+	motion[0] = motion[1];
+	motion[1] = -tmp;
 
 	motion[5] += rot;
 }
@@ -440,9 +434,12 @@ static void WriteFrameInfo( FILE *fp, mstudioanim_t *anim, mstudioseqdesc_t *seq
 
 		if( bone->parent == -1 )
 		{
-			scale = frame / (float)( seqdesc->numframes - 1 );
+			if( seqdesc->numframes > 1 && frame > 0 )
+			{
+				scale = frame / (float)( seqdesc->numframes - 1 );
 
-			VectorMA( motion, scale, seqdesc->linearmovement, motion );
+				VectorMA( motion, scale, seqdesc->linearmovement, motion );
+			}
 
 			ProperBoneRotationZ( motion, 270.0f );
 		}

wscript

@@ -74,11 +74,11 @@ SUBDIRS = [
 	Subproject('3rdparty/gl-wes-v2',    lambda x: not x.env.DEDICATED and x.env.GLWES),
 	Subproject('3rdparty/gl4es',        lambda x: not x.env.DEDICATED and x.env.GL4ES),
 	Subproject('ref/gl',                lambda x: not x.env.DEDICATED and (x.env.GL or x.env.NANOGL or x.env.GLWES or x.env.GL4ES)),
-	Subproject('ref/soft',              lambda x: not x.env.DEDICATED and x.env.SOFT),
+	Subproject('ref/soft',              lambda x: not x.env.DEDICATED and not x.env.SUPPORT_BSP2_FORMAT and x.env.SOFT),
 	Subproject('3rdparty/mainui',       lambda x: not x.env.DEDICATED),
 	Subproject('3rdparty/vgui_support', lambda x: not x.env.DEDICATED),
 	Subproject('stub/client',           lambda x: not x.env.DEDICATED),
-	Subproject('game_launch',           lambda x: not x.env.SINGLE_BINARY and x.env.DEST_OS != 'android'),
+	Subproject('game_launch',           lambda x: not x.env.DEDICATED and not x.env.DISABLE_LAUNCHER),
 
 	# disable only by external dependency presense
 	Subproject('3rdparty/opus', lambda x: not x.env.HAVE_SYSTEM_OPUS and not x.env.DEDICATED),
@@ -113,9 +113,6 @@ def options(opt):
 	grp.add_option('--gamedir', action = 'store', dest = 'GAMEDIR', default = 'valve',
 		help = 'engine default game directory [default: %default]')
 
-	grp.add_option('--single-binary', action = 'store_true', dest = 'SINGLE_BINARY', default = False,
-		help = 'build single "xash" binary (always enabled for dedicated) [default: %default]')
-
 	grp.add_option('-8', '--64bits', action = 'store_true', dest = 'ALLOW64', default = False,
 		help = 'allow targetting 64-bit engine(Linux/Windows/OSX x86 only) [default: %default]')
 
@@ -202,29 +199,23 @@ def configure(conf):
 		conf.options.GL4ES            = True
 		conf.options.GLES3COMPAT      = True
 		conf.options.GL               = False
-		conf.options.SINGLE_BINARY    = True
 		conf.define('XASH_SDLMAIN', 1)
 	elif conf.env.MAGX:
 		conf.options.SDL12            = True
 		conf.options.NO_VGUI          = True
 		conf.options.GL               = False
 		conf.options.LOW_MEMORY       = 1
-		conf.options.SINGLE_BINARY    = True
 		conf.options.NO_ASYNC_RESOLVE = True
 		conf.define('XASH_SDLMAIN', 1)
 		enforce_pic = False
-	elif conf.env.DEST_OS == 'dos':
-		conf.options.SINGLE_BINARY = True
 	elif conf.env.DEST_OS == 'nswitch':
 		conf.options.NO_VGUI          = True
 		conf.options.GL               = True
-		conf.options.SINGLE_BINARY    = True
 		conf.options.NO_ASYNC_RESOLVE = True
 		conf.options.USE_STBTT        = True
 	elif conf.env.DEST_OS == 'psvita':
 		conf.options.NO_VGUI          = True
 		conf.options.GL               = True
-		conf.options.SINGLE_BINARY    = True
 		conf.options.NO_ASYNC_RESOLVE = True
 		conf.options.USE_STBTT        = True
 		# we'll specify -fPIC by hand for shared libraries only
@@ -292,6 +283,7 @@ def configure(conf):
 			'-fdiagnostics-color=always',
 
 			# stable diagnostics, forced to error, sorted
+			'-Werror=alloc-size',
 			'-Werror=bool-compare',
 			'-Werror=bool-operation',
 			'-Werror=cast-align=strict',
@@ -321,6 +313,7 @@ def configure(conf):
 			'-Wmisleading-indentation',
 			'-Wstringop-overflow',
 			'-Wunintialized',
+			'-Walloc-zero',
 
 			# disabled, flood
 			# '-Wdouble-promotion',
@@ -355,7 +348,10 @@ def configure(conf):
 	conf.env.ENABLE_UTILS  = conf.options.ENABLE_UTILS
 	conf.env.ENABLE_FUZZER = conf.options.ENABLE_FUZZER
 	conf.env.DEDICATED     = conf.options.DEDICATED
-	conf.env.SINGLE_BINARY = conf.options.SINGLE_BINARY or conf.env.DEDICATED
+	conf.env.SUPPORT_BSP2_FORMAT = conf.options.SUPPORT_BSP2_FORMAT
+
+	# disable game_launch compiling on platform where it's not needed
+	conf.env.DISABLE_LAUNCHER = conf.env.DEST_OS in ['android', 'nswitch', 'psvita', 'dos'] or conf.env.MAGX
 
 	if conf.env.SAILFISH == 'aurora':
 		conf.env.DEFAULT_RPATH = '/usr/share/su.xash.Engine/lib'