src/hardware/hw_defs.h

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.

src/hardware/hw_draw.c

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -256,8 +256,8 @@ void HWR_DrawStretchyFixedPatch(patch_t *gpatch, fixed_t x, fixed_t y, fixed_t p
 	}
 
 	// positions of the cx, cy, are between 0 and vid.width/vid.height now, we need them to be between -1 and 1
-	cx = -1 + (cx / (vid.width/2));
-	cy = 1 - (cy / (vid.height/2));
+	cx = -1.0f + (cx / (vid.width / 2.0f));
+	cy = 1.0f - (cy / (vid.height / 2.0f));
 
 	// fwidth and fheight are similar
 	fwidth /= vid.width / 2;
@@ -598,43 +598,76 @@ void HWR_DrawCroppedPatch(patch_t *gpatch, fixed_t x, fixed_t y, fixed_t pscale,
 
 // --------------------------------------------------------------------------
 // Fills a box of pixels using a flat texture as a pattern
+// Fixed to properly align like the other draw functions -luigi budd
 // --------------------------------------------------------------------------
 void HWR_DrawFlatFill(INT32 x, INT32 y, INT32 w, INT32 h, lumpnum_t flatlumpnum)
 {
 	FOutVector v[4];
 	const size_t len = W_LumpLength(flatlumpnum);
-	UINT16 flatflag = R_GetFlatSize(len) - 1;
-	double dflatsize = (double)(flatflag + 1);
+	UINT16 flatflag = R_GetFlatSize(len);
+	double dflatsize = (double)(flatflag);
+
+    // compilers are COOL!
+	float dup = (float)vid.dup;
+	float fx = (float)x * dup;
+	float fy = (float)y * dup;
+	float fw = (float)w * dup;
+	float fh = (float)h * dup;
+
+    /*
+	fx *= dup;
+	fy *= dup;
+	fw *= dup;
+	fh *= dup;
+    */
+
+	if (fw <= 0 || fh <= 0)
+		return;	
+	
+	if (fabsf((float)vid.width - (float)BASEVIDWIDTH * vid.dup) > 1.0E-36f)
+	{
+		fx += ((float)vid.width - ((float)BASEVIDWIDTH * vid.dup)) / 2;
+	}
+	if (fabsf((float)vid.height - (float)BASEVIDHEIGHT * vid.dup) > 1.0E-36f)
+	{
+		fy += ((float)vid.height - ((float)BASEVIDHEIGHT * vid.dup)) / 2;
+	}
+
+	if (fx >= vid.width || fy >= vid.height)
+	    return;
+	  
+	fx = -1.0f + (fx / (vid.width / 2.0f));
+	fy = 1.0f - (fy / (vid.height / 2.0f));
+	fw /= vid.width / 2;
+	fh /= vid.height / 2;
 	
 //  3--2
 //  | /|
 //  |/ |
 //  0--1
 	
-	v[0].x = v[3].x = (x - 160.0f)/160.0f;
-	v[2].x = v[1].x = ((x+w) - 160.0f)/160.0f;
-	v[0].y = v[1].y = -(y - 100.0f)/100.0f;
-	v[2].y = v[3].y = -((y+h) - 100.0f)/100.0f;
+    // position vertices
+	v[0].x = v[3].x = fx;
+	v[2].x = v[1].x = fx + fw;
+
+	v[0].y = v[1].y = fy;
+	v[2].y = v[3].y = fy - fh;
 
 	v[0].z = v[1].z = v[2].z = v[3].z = 1.0f;
 
-	v[0].s = v[3].s = (float)((x & flatflag)/dflatsize);
-	v[2].s = v[1].s = (float)(v[0].s + w/dflatsize);
-	v[0].t = v[1].t = (float)((y & flatflag)/dflatsize);
-	v[2].t = v[3].t = (float)(v[0].t + h/dflatsize);
+    // sides
+	v[0].s = v[3].s = (float)(flatflag/dflatsize) * 2;
+	v[2].s = v[1].s = (float)(v[0].s + w/dflatsize) * 2;
 
-	HWR_GetRawFlat(flatlumpnum);
+    // top/bottom
+	v[0].t = v[1].t = (float)(flatflag/dflatsize) * 2;
+	v[2].t = v[3].t = (float)(v[0].t + h/dflatsize) * 2;
 
-	//Hurdler: Boris, the same comment as above... but maybe for pics
-	// it not a problem since they don't have any transparent pixel
-	// if I'm right !?
-	// BTW, I see we put 0 for PFs, and If I'm right, that
-	// means we take the previous PFs as default
-	// how can we be sure they are ok?
+    // needed to texture the poly
+	HWR_GetRawFlat(flatlumpnum);
 	HWD.pfnDrawPolygon(NULL, v, 4, PF_NoDepthTest); //PF_Translucent);
 }
 
-
 // --------------------------------------------------------------------------
 // Fade down the screen so that the menu drawn on top of it looks brighter
 // --------------------------------------------------------------------------
@@ -1140,10 +1173,12 @@ void HWR_DrawConsoleFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color, UINT32
 void HWR_DrawFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color)
 {
 	FOutVector v[4];
+	FBITFIELD flags;
 	FSurfaceInfo Surf;
 	float fx, fy, fw, fh;
 	RGBA_t *palette = HWR_GetTexturePalette();
 	UINT8 alphalevel = ((color & V_ALPHAMASK) >> V_ALPHASHIFT);
+	UINT8 blendmode = ((color & V_BLENDMASK) >> V_BLENDSHIFT);
 
 	UINT8 perplayershuffle = 0;
 
@@ -1308,6 +1343,199 @@ void HWR_DrawFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color)
 
 	Surf.PolyColor = palette[color&0xFF];
 
+	flags = HWR_GetBlendModeFlag(blendmode+1)|PF_NoDepthTest|PF_NoTexture|PF_Modulated;
+
+	if (alphalevel)
+	{
+		if (alphalevel == 10) Surf.PolyColor.s.alpha = softwaretranstogl_lo[st_translucency]; // V_HUDTRANSHALF
+		else if (alphalevel == 11) Surf.PolyColor.s.alpha = softwaretranstogl[st_translucency]; // V_HUDTRANS
+		else if (alphalevel == 12) Surf.PolyColor.s.alpha = softwaretranstogl_hi[st_translucency]; // V_HUDTRANSDOUBLE
+		else Surf.PolyColor.s.alpha = softwaretranstogl[10-alphalevel];
+	}
+
+	HWD.pfnDrawPolygon(&Surf, v, 4,
+		flags);
+}
+
+// -----------------+
+// HWR_DrawFixedFill: draw flat coloured rectangle, with no texture (with fixed point values !!)
+// -----------------+
+void HWR_DrawFixedFill(fixed_t x, fixed_t y, fixed_t w, fixed_t h, INT32 color)
+{
+	FOutVector v[4];
+	FSurfaceInfo Surf;
+	FBITFIELD flags;
+	float fx = FIXED_TO_FLOAT(x);
+	float fy = FIXED_TO_FLOAT(y);
+	float fw = FIXED_TO_FLOAT(w);
+	float fh = FIXED_TO_FLOAT(h);
+	RGBA_t *palette = HWR_GetTexturePalette();
+	UINT8 alphalevel = ((color & V_ALPHAMASK) >> V_ALPHASHIFT);
+	UINT8 blendmode = ((color & V_BLENDMASK) >> V_BLENDSHIFT);
+
+	UINT8 perplayershuffle = 0;
+
+//  3--2
+//  | /|
+//  |/ |
+//  0--1
+
+	if (splitscreen && (color & V_PERPLAYER))
+	{
+		float adjusty = ((color & V_NOSCALESTART) ? vid.height : BASEVIDHEIGHT)/2.0f;
+		fh /= 1;
+		fy /= 2;
+#ifdef QUADS
+		if (splitscreen > 1) // 3 or 4 players
+		{
+			float adjustx = ((color & V_NOSCALESTART) ? vid.height : BASEVIDHEIGHT)/2.0f;
+			fw /= 2;
+			fx /= 2;
+			if (stplyr == &players[displayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 1;
+				if (!(color & (V_SNAPTOLEFT|V_SNAPTORIGHT)))
+					perplayershuffle |= 4;
+				color &= ~V_SNAPTOBOTTOM|V_SNAPTORIGHT;
+			}
+			else if (stplyr == &players[secondarydisplayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 1;
+				if (!(color & (V_SNAPTOLEFT|V_SNAPTORIGHT)))
+					perplayershuffle |= 8;
+				fx += adjustx;
+				color &= ~V_SNAPTOBOTTOM|V_SNAPTOLEFT;
+			}
+			else if (stplyr == &players[thirddisplayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 2;
+				if (!(color & (V_SNAPTOLEFT|V_SNAPTORIGHT)))
+					perplayershuffle |= 4;
+				fy += adjusty;
+				color &= ~V_SNAPTOTOP|V_SNAPTORIGHT;
+			}
+			else //if (stplyr == &players[fourthdisplayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 2;
+				if (!(color & (V_SNAPTOLEFT|V_SNAPTORIGHT)))
+					perplayershuffle |= 8;
+				fx += adjustx;
+				fy += adjusty;
+				color &= ~V_SNAPTOTOP|V_SNAPTOLEFT;
+			}
+		}
+		else
+#endif
+		// 2 players
+		{
+			if (stplyr == &players[displayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 1;
+				color &= ~V_SNAPTOBOTTOM;
+			}
+			else //if (stplyr == &players[secondarydisplayplayer])
+			{
+				if (!(color & (V_SNAPTOTOP|V_SNAPTOBOTTOM)))
+					perplayershuffle |= 2;
+				fy += adjusty;
+				color &= ~V_SNAPTOTOP;
+			}
+		}
+	}
+
+	if (!(color & V_NOSCALESTART))
+	{
+		/*
+		if (x == 0 && y == 0 && w == BASEVIDWIDTH && h == BASEVIDHEIGHT)
+		{
+			RGBA_t rgbaColour = palette[color&0xFF];
+			FRGBAFloat clearColour;
+			clearColour.red = (float)rgbaColour.s.red / 255;
+			clearColour.green = (float)rgbaColour.s.green / 255;
+			clearColour.blue = (float)rgbaColour.s.blue / 255;
+			clearColour.alpha = 1;
+			HWD.pfnClearBuffer(true, false, &clearColour);
+			return;
+		}
+		*/
+		
+		fx *= vid.dup;
+		fy *= vid.dup;
+		fw *= vid.dup;
+		fh *= vid.dup;
+
+		if (fabsf((float)vid.width - (float)BASEVIDWIDTH * vid.dup) > 1.0E-36f)
+		{
+			if (color & V_SNAPTORIGHT)
+				fx += ((float)vid.width - ((float)BASEVIDWIDTH * vid.dup));
+			else if (!(color & V_SNAPTOLEFT))
+				fx += ((float)vid.width - ((float)BASEVIDWIDTH * vid.dup)) / 2;
+			if (perplayershuffle & 4)
+				fx -= ((float)vid.width - ((float)BASEVIDWIDTH * vid.dup)) / 4;
+			else if (perplayershuffle & 8)
+				fx += ((float)vid.width - ((float)BASEVIDWIDTH * vid.dup)) / 4;
+		}
+		if (fabsf((float)vid.height - (float)BASEVIDHEIGHT * vid.dup) > 1.0E-36f)
+		{
+			// same thing here
+			if (color & V_SNAPTOBOTTOM)
+				fy += ((float)vid.height - ((float)BASEVIDHEIGHT * vid.dup));
+			else if (!(color & V_SNAPTOTOP))
+				fy += ((float)vid.height - ((float)BASEVIDHEIGHT * vid.dup)) / 2;
+			if (perplayershuffle & 1)
+				fy -= ((float)vid.height - ((float)BASEVIDHEIGHT * vid.dup)) / 4;
+			else if (perplayershuffle & 2)
+				fy += ((float)vid.height - ((float)BASEVIDHEIGHT * vid.dup)) / 4;
+		}
+	}
+
+	if (fx >= vid.width || fy >= vid.height)
+		return;
+	if (fx < 0)
+	{
+		fw += fx;
+		fx = 0;
+	}
+	if (fy < 0)
+	{
+		fh += fy;
+		fy = 0;
+	}
+
+	if (fw <= 0 || fh <= 0)
+		return;
+	if (fx + fw > vid.width)
+		fw = (float)vid.width - fx;
+	if (fy + fh > vid.height)
+		fh = (float)vid.height - fy;
+
+	fx = -1.0f + (fx / (vid.width / 2.0f));
+	fy = 1.0f - (fy / (vid.height / 2.0f));
+	fw = fw / (vid.width / 2);
+	fh = fh / (vid.height / 2);
+
+	v[0].x = v[3].x = fx;
+	v[2].x = v[1].x = fx + fw;
+	
+	v[0].y = v[1].y = fy;
+	v[2].y = v[3].y = fy - fh;
+
+	v[0].z = v[1].z = v[2].z = v[3].z = 1.0f;
+
+	v[0].s = v[3].s = 0.0f;
+	v[2].s = v[1].s = 1.0f;
+	v[0].t = v[1].t = 0.0f;
+	v[2].t = v[3].t = 1.0f;
+
+	Surf.PolyColor = palette[color&0xFF];
+
+	flags = HWR_GetBlendModeFlag(blendmode+1)|PF_NoDepthTest|PF_NoTexture|PF_Modulated;
+
 	if (alphalevel)
 	{
 		if (alphalevel == 10) Surf.PolyColor.s.alpha = softwaretranstogl_lo[st_translucency]; // V_HUDTRANSHALF
@@ -1317,7 +1545,7 @@ void HWR_DrawFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color)
 	}
 
 	HWD.pfnDrawPolygon(&Surf, v, 4,
-		PF_Modulated|PF_NoTexture|PF_NoDepthTest|PF_Translucent);
+		flags);
 }
 
 #ifdef HAVE_PNG

src/hardware/hw_drv.h

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -71,6 +71,7 @@ EXPORT void HWRAPI(SetShaderInfo) (hwdshaderinfo_t info, INT32 value);
 
 EXPORT void HWRAPI(SetPaletteLookup)(UINT8 *lut);
 EXPORT UINT32 HWRAPI(CreateLightTable)(RGBA_t *hw_lighttable);
+EXPORT void HWRAPI(UpdateLightTable)(UINT32 id, RGBA_t *hw_lighttable);
 EXPORT void HWRAPI(ClearLightTables)(void);
 EXPORT void HWRAPI(SetScreenPalette)(RGBA_t *palette);
 
@@ -125,6 +126,7 @@ struct hwdriver_s
 
 	SetPaletteLookup    pfnSetPaletteLookup;
 	CreateLightTable    pfnCreateLightTable;
+	UpdateLightTable    pfnUpdateLightTable;
 	ClearLightTables    pfnClearLightTables;
 	SetScreenPalette    pfnSetScreenPalette;
 };

src/hardware/hw_glob.h

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -120,7 +120,7 @@ void HWR_GetPatch(patch_t *patch);
 void HWR_GetMappedPatch(patch_t *patch, const UINT8 *colormap);
 void HWR_GetFadeMask(lumpnum_t fademasklumpnum);
 
-GLMapTexture_t *HWR_GetTexture(INT32 tex);
+GLMapTexture_t *HWR_GetTexture(INT32 tex, boolean chromakeyed);
 void HWR_GetLevelFlat(levelflat_t *levelflat, boolean chromakeyed);
 void HWR_GetRawFlat(lumpnum_t flatlumpnum);
 
@@ -133,7 +133,8 @@ void HWR_UnlockCachedPatch(GLPatch_t *gpatch);
 
 void HWR_SetPalette(RGBA_t *palette);
 void HWR_SetMapPalette(void);
-UINT32 HWR_CreateLightTable(UINT8 *lighttable);
+UINT32 HWR_CreateLightTable(UINT8 *lighttable, RGBA_t *hw_lighttable);
+void HWR_UpdateLightTable(UINT32 id, UINT8 *lighttable, RGBA_t *hw_lighttable);
 UINT32 HWR_GetLightTableID(extracolormap_t *colormap);
 void HWR_ClearLightTables(void);
 

src/hardware/hw_light.c

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -395,6 +395,8 @@ light_t *t_lspr[NUMSPRITES] =
 	&lspr[NOLIGHT],     // SPR_XMS4
 	&lspr[NOLIGHT],     // SPR_XMS5
 	&lspr[NOLIGHT],     // SPR_XMS6
+	&lspr[NOLIGHT],     // SPR_SNTT
+	&lspr[NOLIGHT],     // SPR_SSTT
 	&lspr[NOLIGHT],     // SPR_FHZI
 	&lspr[NOLIGHT],     // SPR_ROSY
 
@@ -428,6 +430,8 @@ light_t *t_lspr[NUMSPRITES] =
 	// Misc Scenery
 	&lspr[NOLIGHT],     // SPR_STLG
 	&lspr[NOLIGHT],     // SPR_DBAL
+	&lspr[NOLIGHT],     // SPR_GINE
+	&lspr[NOLIGHT],     // SPR_PPAL
 
 	// Powerup Indicators
 	&lspr[NOLIGHT],     // SPR_ARMA
@@ -614,6 +618,9 @@ light_t *t_lspr[NUMSPRITES] =
 	&lspr[NOLIGHT],     // SPR_GWLG
 	&lspr[NOLIGHT],     // SPR_GWLR
 
+	// LJ Knuckles
+	&lspr[NOLIGHT],		// SPR_OLDK,
+
 	// Free slots
 	&lspr[NOLIGHT],
 	&lspr[NOLIGHT],
@@ -1422,7 +1429,7 @@ static void HWR_SearchLightsInMobjs(void)
 
 	// search in the list of thinkers
 	for (th = thlist[THINK_MOBJ].next; th != &thlist[THINK_MOBJ]; th = th->next)
-		if (th->function.acp1 != (actionf_p1)P_RemoveThinkerDelayed)
+		if (th->function != (actionf_p1)P_RemoveThinkerDelayed)
 			HWR_AddMobjLights((mobj_t *)th);
 }
 #endif

src/hardware/hw_main.c

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -309,6 +309,43 @@ static FUINT HWR_CalcSlopeLight(FUINT lightnum, angle_t dir, fixed_t delta)
 	return (FUINT)finallight;
 }
 
+static UINT8 HWR_SideLightLevel(side_t *side, INT16 base_lightlevel)
+{
+	return max(0, min(255, side->light +
+		((side->lightabsolute) ? 0 : base_lightlevel)));
+}
+
+/* TODO: implement per-texture lighting
+static UINT8 HWR_TopLightLevel(side_t *side, INT16 base_lightlevel)
+{
+	return max(0, min(255, side->light_top +
+		((side->lightabsolute_top) ? 0 : HWR_SideLightLevel(side, base_lightlevel))));
+}
+
+static UINT8 HWR_MidLightLevel(side_t *side, INT16 base_lightlevel)
+{
+	return max(0, min(255, side->light_mid +
+		((side->lightabsolute_mid) ? 0 : HWR_SideLightLevel(side, base_lightlevel))));
+}
+
+static UINT8 HWR_BottomLightLevel(side_t *side, INT16 base_lightlevel)
+{
+	return max(0, min(255, side->light_bottom +
+		((side->lightabsolute_bottom) ? 0 : HWR_SideLightLevel(side, base_lightlevel))));
+}
+*/
+
+static UINT8 HWR_FloorLightLevel(sector_t *sector, INT16 base_lightlevel)
+{
+	return max(0, min(255, sector->floorlightlevel +
+		((sector->floorlightabsolute) ? 0 : base_lightlevel)));
+}
+
+static UINT8 HWR_CeilingLightLevel(sector_t *sector, INT16 base_lightlevel)
+{
+	return max(0, min(255, sector->ceilinglightlevel +
+		((sector->ceilinglightabsolute) ? 0 : base_lightlevel)));
+}
 // ==========================================================================
 //                                   FLOOR/CEILING GENERATION FROM SUBSECTORS
 // ==========================================================================
@@ -705,8 +742,9 @@ static void HWR_SplitWall(sector_t *sector, FOutVector *wallVerts, INT32 texnum,
 	fixed_t v2x = FloatToFixed(wallVerts[1].x);
 	fixed_t v2y = FloatToFixed(wallVerts[1].z);
 
+	FUINT lightnum = HWR_SideLightLevel(gl_sidedef, sector->lightlevel);
 	const UINT8 alpha = Surf->PolyColor.s.alpha;
-	FUINT lightnum = HWR_CalcWallLight(sector->lightlevel, v1x, v1y, v2x, v2y);
+	lightnum = HWR_CalcWallLight(lightnum, v1x, v1y, v2x, v2y);
 	extracolormap_t *colormap = NULL;
 
 	if (!r_renderwalls)
@@ -750,13 +788,13 @@ static void HWR_SplitWall(sector_t *sector, FOutVector *wallVerts, INT32 texnum,
 		{
 			if (pfloor && (pfloor->fofflags & FOF_FOG))
 			{
-				lightnum = pfloor->master->frontsector->lightlevel;
+				lightnum = HWR_SideLightLevel(gl_sidedef, pfloor->master->frontsector->lightlevel);
 				colormap = pfloor->master->frontsector->extra_colormap;
 				lightnum = colormap ? lightnum : HWR_CalcWallLight(lightnum, v1x, v1y, v2x, v2y);
 			}
 			else
 			{
-				lightnum = *list[i].lightlevel;
+				lightnum = HWR_SideLightLevel(gl_sidedef, *list[i].lightlevel);
 				colormap = *list[i].extra_colormap;
 				lightnum = colormap ? lightnum : HWR_CalcWallLight(lightnum, v1x, v1y, v2x, v2y);
 			}
@@ -916,6 +954,7 @@ static boolean HWR_BlendMidtextureSurface(FSurfaceInfo *pSurf)
 
 static void HWR_RenderMidtexture(INT32 gl_midtexture, float cliplow, float cliphigh, fixed_t worldtop, fixed_t worldbottom, fixed_t worldhigh, fixed_t worldlow, fixed_t worldtopslope, fixed_t worldbottomslope, fixed_t worldhighslope, fixed_t worldlowslope, UINT32 lightnum, FOutVector *inWallVerts)
 {
+	sector_t *front, *back;
 	FOutVector wallVerts[4];
 
 	FSurfaceInfo Surf;
@@ -925,6 +964,16 @@ static void HWR_RenderMidtexture(INT32 gl_midtexture, float cliplow, float cliph
 	if (!HWR_BlendMidtextureSurface(&Surf))
 		return;
 
+	if (gl_linedef->frontsector->heightsec != -1)
+		front = &sectors[gl_linedef->frontsector->heightsec];
+	else
+		front = gl_linedef->frontsector;
+
+	if (gl_linedef->backsector->heightsec != -1)
+		back = &sectors[gl_linedef->backsector->heightsec];
+	else
+		back = gl_linedef->backsector;
+
 	fixed_t texheight = FixedDiv(textureheight[gl_midtexture], abs(gl_sidedef->scaley_mid));
 	INT32 repeats;
 
@@ -934,15 +983,15 @@ static void HWR_RenderMidtexture(INT32 gl_midtexture, float cliplow, float cliph
 	{
 		fixed_t high, low;
 
-		if (gl_frontsector->ceilingheight > gl_backsector->ceilingheight)
-			high = gl_backsector->ceilingheight;
+		if (front->ceilingheight > back->ceilingheight)
+			high = back->ceilingheight;
 		else
-			high = gl_frontsector->ceilingheight;
+			high = front->ceilingheight;
 
-		if (gl_frontsector->floorheight > gl_backsector->floorheight)
-			low = gl_frontsector->floorheight;
+		if (front->floorheight > back->floorheight)
+			low = front->floorheight;
 		else
-			low = gl_backsector->floorheight;
+			low = back->floorheight;
 
 		repeats = (high - low) / texheight;
 		if ((high - low) % texheight)
@@ -951,7 +1000,7 @@ static void HWR_RenderMidtexture(INT32 gl_midtexture, float cliplow, float cliph
 	else
 		repeats = 1;
 
-	GLMapTexture_t *grTex = HWR_GetTexture(gl_midtexture);
+	GLMapTexture_t *grTex = HWR_GetTexture(gl_midtexture, true);
 	float xscale = FixedToFloat(gl_sidedef->scalex_mid);
 	float yscale = FixedToFloat(gl_sidedef->scaley_mid);
 
@@ -969,8 +1018,8 @@ static void HWR_RenderMidtexture(INT32 gl_midtexture, float cliplow, float cliph
 	if (gl_curline->polyseg)
 	{
 		// Change this when polyobjects support slopes
-		popentop = popentopslope = gl_curline->backsector->ceilingheight;
-		popenbottom = popenbottomslope = gl_curline->backsector->floorheight;
+		popentop = popentopslope = back->ceilingheight;
+		popenbottom = popenbottomslope = back->floorheight;
 	}
 	else
 	{
@@ -1167,7 +1216,7 @@ static void HWR_ProcessSeg(void)
 	float cliplow = (float)gl_curline->offset;
 	float cliphigh = cliplow + (gl_curline->flength * FRACUNIT);
 
-	FUINT lightnum = gl_frontsector->lightlevel;
+	FUINT lightnum = HWR_SideLightLevel(gl_sidedef, gl_frontsector->lightlevel);
 	extracolormap_t *colormap = gl_frontsector->extra_colormap;
 	lightnum = colormap ? lightnum : HWR_CalcWallLight(lightnum, vs.x, vs.y, ve.x, ve.y);
 
@@ -1210,7 +1259,7 @@ static void HWR_ProcessSeg(void)
 		// check TOP TEXTURE
 		if ((worldhighslope < worldtopslope || worldhigh < worldtop) && gl_toptexture)
 		{
-			grTex = HWR_GetTexture(gl_toptexture);
+			grTex = HWR_GetTexture(gl_toptexture, false);
 			xscale = FixedToFloat(abs(gl_sidedef->scalex_top));
 			yscale = FixedToFloat(abs(gl_sidedef->scaley_top));
 
@@ -1300,7 +1349,7 @@ static void HWR_ProcessSeg(void)
 		// check BOTTOM TEXTURE
 		if ((worldlowslope > worldbottomslope || worldlow > worldbottom) && gl_bottomtexture)
 		{
-			grTex = HWR_GetTexture(gl_bottomtexture);
+			grTex = HWR_GetTexture(gl_bottomtexture, false);
 			xscale = FixedToFloat(abs(gl_sidedef->scalex_bottom));
 			yscale = FixedToFloat(abs(gl_sidedef->scaley_bottom));
 
@@ -1414,7 +1463,7 @@ static void HWR_ProcessSeg(void)
 		// Single sided line... Deal only with the middletexture (if one exists)
 		if (gl_midtexture && gl_linedef->special != SPECIAL_HORIZON_LINE) // (Ignore horizon line for OGL)
 		{
-			grTex = HWR_GetTexture(gl_midtexture);
+			grTex = HWR_GetTexture(gl_midtexture, false);
 			xscale = FixedToFloat(gl_sidedef->scalex_mid);
 			yscale = FixedToFloat(gl_sidedef->scaley_mid);
 
@@ -1533,14 +1582,14 @@ static void HWR_ProcessSeg(void)
 				if ((high1 < lowcut && highslope1 < lowcutslope) || (low1 > highcut && lowslope1 > highcutslope))
 					continue;
 
-				side_t *side = R_GetFFloorSide(gl_curline, rover);
+				side_t *side = R_GetFFloorSide(gl_curline->linedef, rover, gl_backsector);
 
 				boolean do_texture_skew;
 				boolean dont_peg_bottom;
 
 				if (rover->master->flags & ML_TFERLINE)
 				{
-					line_t *newline = R_GetFFloorLine(gl_curline, rover);
+					line_t *newline = R_GetFFloorLine(gl_curline->linedef, rover, gl_backsector);
 					do_texture_skew = newline->flags & ML_SKEWTD;
 					dont_peg_bottom = newline->flags & ML_DONTPEGBOTTOM;
 				}
@@ -1588,7 +1637,7 @@ static void HWR_ProcessSeg(void)
 					// -- Monster Iestyn 26/06/18
 					fixed_t texturevpeg = side->rowoffset + side->offsety_mid;
 
-					grTex = HWR_GetTexture(texnum);
+					grTex = HWR_GetTexture(texnum, true);
 					xscale = FixedToFloat(side->scalex_mid);
 					yscale = FixedToFloat(side->scaley_mid);
 
@@ -1628,11 +1677,11 @@ static void HWR_ProcessSeg(void)
 				{
 					blendmode = PF_Fog|PF_NoTexture;
 
-					lightnum = rover->master->frontsector->lightlevel;
+					lightnum = HWR_SideLightLevel(gl_sidedef, rover->master->frontsector->lightlevel);
 					colormap = rover->master->frontsector->extra_colormap;
 					lightnum = colormap ? lightnum : HWR_CalcWallLight(lightnum, vs.x, vs.y, ve.x, ve.y);
 
-					Surf.PolyColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel, rover->master->frontsector->extra_colormap);
+					Surf.PolyColor.s.alpha = HWR_FogBlockAlpha(HWR_SideLightLevel(gl_sidedef, rover->master->frontsector->lightlevel), rover->master->frontsector->extra_colormap);
 
 					if (gl_frontsector->numlights)
 						HWR_SplitWall(gl_frontsector, wallVerts, 0, &Surf, rover->fofflags, rover, blendmode);
@@ -1643,7 +1692,7 @@ static void HWR_ProcessSeg(void)
 				{
 					blendmode = PF_Masked;
 
-					if ((rover->fofflags & FOF_TRANSLUCENT && !(rover->fofflags & FOF_SPLAT)) || rover->blend)
+					if ((rover->fofflags & FOF_TRANSLUCENT && !((rover->fofflags & FOF_SPLAT) && rover->alpha >= 255)) || rover->blend)
 					{
 						blendmode = rover->blend ? HWR_GetBlendModeFlag(rover->blend) : PF_Translucent;
 						Surf.PolyColor.s.alpha = max(0, min(rover->alpha, 255));
@@ -1689,14 +1738,14 @@ static void HWR_ProcessSeg(void)
 				if ((high1 < lowcut && highslope1 < lowcutslope) || (low1 > highcut && lowslope1 > highcutslope))
 					continue;
 
-				side_t *side = R_GetFFloorSide(gl_curline, rover);
+				side_t *side = R_GetFFloorSide(gl_curline->linedef, rover, gl_backsector);
 
 				boolean do_texture_skew;
 				boolean dont_peg_bottom;
 
 				if (rover->master->flags & ML_TFERLINE)
 				{
-					line_t *newline = R_GetFFloorLine(gl_curline, rover);
+					line_t *newline = R_GetFFloorLine(gl_curline->linedef, rover, gl_backsector);
 					do_texture_skew = newline->flags & ML_SKEWTD;
 					dont_peg_bottom = newline->flags & ML_DONTPEGBOTTOM;
 				}
@@ -1745,7 +1794,7 @@ static void HWR_ProcessSeg(void)
 					// -- Monster Iestyn 26/06/18
 					fixed_t texturevpeg = side->rowoffset + side->offsety_mid;
 
-					grTex = HWR_GetTexture(texnum);
+					grTex = HWR_GetTexture(texnum, true);
 					xscale = FixedToFloat(side->scalex_mid);
 					yscale = FixedToFloat(side->scaley_mid);
 
@@ -1785,7 +1834,7 @@ static void HWR_ProcessSeg(void)
 				{
 					blendmode = PF_Fog|PF_NoTexture;
 
-					lightnum = rover->master->frontsector->lightlevel;
+					lightnum = HWR_SideLightLevel(gl_sidedef, rover->master->frontsector->lightlevel);
 					colormap = rover->master->frontsector->extra_colormap;
 					lightnum = colormap ? lightnum : HWR_CalcWallLight(lightnum, vs.x, vs.y, ve.x, ve.y);
 
@@ -1800,7 +1849,7 @@ static void HWR_ProcessSeg(void)
 				{
 					blendmode = PF_Masked;
 
-					if ((rover->fofflags & FOF_TRANSLUCENT && !(rover->fofflags & FOF_SPLAT)) || rover->blend)
+					if ((rover->fofflags & FOF_TRANSLUCENT && !((rover->fofflags & FOF_SPLAT) && rover->alpha >= 255)) || rover->blend)
 					{
 						blendmode = rover->blend ? HWR_GetBlendModeFlag(rover->blend) : PF_Translucent;
 						Surf.PolyColor.s.alpha = max(0, min(rover->alpha, 255));
@@ -2454,7 +2503,7 @@ static void HWR_Subsector(size_t num)
 
 			if (gl_frontsector->cullheight)
 			{
-				if (HWR_DoCulling(gl_frontsector->cullheight, viewsector->cullheight, gl_viewz, FIXED_TO_FLOAT(bottomCullHeight), FIXED_TO_FLOAT(topCullHeight)))
+				if (HWR_DoCulling(gl_frontsector->cullheight, viewsector->cullheight, gl_viewz, FIXED_TO_FLOAT(*rover->bottomheight), FIXED_TO_FLOAT(*rover->topheight)))
 					continue;
 			}
 
@@ -2471,17 +2520,17 @@ static void HWR_Subsector(size_t num)
 					UINT8 alpha;
 
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < bottomCullHeight ? true : false);
-					alpha = HWR_FogBlockAlpha(*gl_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap);
+					alpha = HWR_FogBlockAlpha(HWR_FloorLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel), rover->master->frontsector->extra_colormap);
 
 					HWR_AddTransparentFloor(0,
 					                       &extrasubsectors[num],
 										   false,
 					                       *rover->bottomheight,
-					                       *gl_frontsector->lightlist[light].lightlevel,
+					                       HWR_FloorLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
 					                       alpha, rover->master->frontsector, PF_Fog|PF_NoTexture,
 										   true, false, rover->master->frontsector->extra_colormap);
 				}
-				else if ((rover->fofflags & FOF_TRANSLUCENT && !(rover->fofflags & FOF_SPLAT)) || rover->blend) // SoM: Flags are more efficient
+				else if ((rover->fofflags & FOF_TRANSLUCENT && !((rover->fofflags & FOF_SPLAT) && rover->alpha >= 255)) || rover->blend) // SoM: Flags are more efficient
 				{
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < bottomCullHeight ? true : false);
 
@@ -2489,7 +2538,7 @@ static void HWR_Subsector(size_t num)
 					                       &extrasubsectors[num],
 										   false,
 					                       *rover->bottomheight,
-					                       *gl_frontsector->lightlist[light].lightlevel,
+					                       HWR_FloorLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
 					                       max(0, min(rover->alpha, 255)), rover->master->frontsector,
 					                       HWR_RippleBlend(gl_frontsector, rover, false) | (rover->blend ? HWR_GetBlendModeFlag(rover->blend) : PF_Translucent),
 					                       false, rover->fofflags & FOF_SPLAT, *gl_frontsector->lightlist[light].extra_colormap);
@@ -2498,8 +2547,9 @@ static void HWR_Subsector(size_t num)
 				{
 					HWR_GetLevelFlat(&levelflats[*rover->bottompic], rover->fofflags & FOF_SPLAT);
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < bottomCullHeight ? true : false);
-					HWR_RenderPlane(sub, &extrasubsectors[num], false, *rover->bottomheight, HWR_RippleBlend(gl_frontsector, rover, false)|PF_Occlude, *gl_frontsector->lightlist[light].lightlevel, &levelflats[*rover->bottompic],
-					                rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
+					HWR_RenderPlane(sub, &extrasubsectors[num], false, *rover->bottomheight, HWR_RippleBlend(gl_frontsector, rover, false)|PF_Occlude,
+					                HWR_FloorLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
+					                &levelflats[*rover->bottompic], rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
 				}
 			}
 
@@ -2516,17 +2566,17 @@ static void HWR_Subsector(size_t num)
 					UINT8 alpha;
 
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < topCullHeight ? true : false);
-					alpha = HWR_FogBlockAlpha(*gl_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap);
+					alpha = HWR_FogBlockAlpha(HWR_CeilingLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel), rover->master->frontsector->extra_colormap);
 
 					HWR_AddTransparentFloor(0,
 					                       &extrasubsectors[num],
 										   true,
 					                       *rover->topheight,
-					                       *gl_frontsector->lightlist[light].lightlevel,
+					                       HWR_CeilingLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
 					                       alpha, rover->master->frontsector, PF_Fog|PF_NoTexture,
 										   true, false, rover->master->frontsector->extra_colormap);
 				}
-				else if ((rover->fofflags & FOF_TRANSLUCENT && !(rover->fofflags & FOF_SPLAT)) || rover->blend)
+				else if ((rover->fofflags & FOF_TRANSLUCENT && !((rover->fofflags & FOF_SPLAT) && rover->alpha >= 255)) || rover->blend)
 				{
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < topCullHeight ? true : false);
 
@@ -2534,7 +2584,7 @@ static void HWR_Subsector(size_t num)
 					                        &extrasubsectors[num],
 											true,
 					                        *rover->topheight,
-					                        *gl_frontsector->lightlist[light].lightlevel,
+					                        HWR_CeilingLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
 					                        max(0, min(rover->alpha, 255)), rover->master->frontsector,
 					                        HWR_RippleBlend(gl_frontsector, rover, false) | (rover->blend ? HWR_GetBlendModeFlag(rover->blend) : PF_Translucent),
 					                        false, rover->fofflags & FOF_SPLAT, *gl_frontsector->lightlist[light].extra_colormap);
@@ -2543,8 +2593,9 @@ static void HWR_Subsector(size_t num)
 				{
 					HWR_GetLevelFlat(&levelflats[*rover->toppic], rover->fofflags & FOF_SPLAT);
 					light = R_GetPlaneLight(gl_frontsector, centerHeight, viewz < topCullHeight ? true : false);
-					HWR_RenderPlane(sub, &extrasubsectors[num], true, *rover->topheight, HWR_RippleBlend(gl_frontsector, rover, false)|PF_Occlude, *gl_frontsector->lightlist[light].lightlevel, &levelflats[*rover->toppic],
-					                  rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
+					HWR_RenderPlane(sub, &extrasubsectors[num], true, *rover->topheight, HWR_RippleBlend(gl_frontsector, rover, false)|PF_Occlude,
+					                  HWR_CeilingLightLevel(rover->master->frontsector, *gl_frontsector->lightlist[light].lightlevel),
+					                  &levelflats[*rover->toppic], rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
 				}
 			}
 		}
@@ -2620,45 +2671,31 @@ fixed_t *hwbbox;
 
 static void HWR_RenderBSPNode(INT32 bspnum)
 {
-	node_t *bsp = &nodes[bspnum];
-
-	// Decide which side the view point is on
+	bspnode_t *bsp;
 	INT32 side;
 
 	ps_numbspcalls.value.i++;
 
-	// Found a subsector?
-	if (bspnum & NF_SUBSECTOR)
+	while (!(bspnum & NF_SUBSECTOR))  // Found a subsector?
 	{
-		if (bspnum == -1)
-		{
-			//*(gl_drawsubsector_p++) = 0;
-			HWR_Subsector(0);
-		}
-		else
-		{
-			//*(gl_drawsubsector_p++) = bspnum&(~NF_SUBSECTOR);
-			HWR_Subsector(bspnum&(~NF_SUBSECTOR));
-		}
-		return;
-	}
+		bsp = &nodes[bspnum];
 
 		// Decide which side the view point is on.
 		side = R_PointOnSide(viewx, viewy, bsp);
-
 		// BP: big hack for a test in lighning ref : 1249753487AB
 		hwbbox = bsp->bbox[side];
-
 		// Recursively divide front space.
 		HWR_RenderBSPNode(bsp->children[side]);
 
 		// Possibly divide back space.
-	if (HWR_CheckBBox(bsp->bbox[side^1]))
-	{
-		// BP: big hack for a test in lighning ref : 1249753487AB
-		hwbbox = bsp->bbox[side^1];
-		HWR_RenderBSPNode(bsp->children[side^1]);
+
+		if (!HWR_CheckBBox(bsp->bbox[side^1]))
+			return;
+
+		bspnum = bsp->children[side^1];
 	}
+
+	HWR_Subsector(bspnum == -1 ? 0 : bspnum & ~NF_SUBSECTOR);
 }
 
 // ==========================================================================
@@ -2880,7 +2917,7 @@ static void HWR_DrawDropShadow(mobj_t *thing, fixed_t scale)
 	}
 
 	HWR_Lighting(&sSurf, 0, colormap);
-	sSurf.PolyColor.s.alpha = alpha;
+	sSurf.PolyColor.s.alpha = FixedMul(thing->alpha, alpha);
 
 	if (HWR_UseShader())
 	{
@@ -3055,10 +3092,15 @@ static void HWR_SplitSprite(gl_vissprite_t *spr)
 	// co-ordinates
 	memcpy(wallVerts, baseWallVerts, sizeof(baseWallVerts));
 
+	fixed_t newalpha = spr->mobj->alpha;
+
 	// if sprite has linkdraw, then dont write to z-buffer (by not using PF_Occlude)
 	// this will result in sprites drawn afterwards to be drawn on top like intended when using linkdraw.
 	if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
+	{
+		newalpha = spr->mobj->tracer->alpha;
 		occlusion = 0;
+	}
 	else
 		occlusion = PF_Occlude;
 
@@ -3095,6 +3137,14 @@ static void HWR_SplitSprite(gl_vissprite_t *spr)
 		if (!occlusion) use_linkdraw_hack = true;
 	}
 
+	if (cv_translucency.value && newalpha < FRACUNIT)
+	{
+		// TODO: The ternary operator is a hack to make alpha values roughly match what their FF_TRANSMASK equivalent would be
+		// See if there's a better way of doing this
+		Surf.PolyColor.s.alpha = min(FixedMul(newalpha, Surf.PolyColor.s.alpha == 0xFF ? 256 : Surf.PolyColor.s.alpha), 0xFF);
+		blend = HWR_GetBlendModeFlag(blendmode);
+	}
+
 	if (HWR_UseShader())
 	{
 		shader = SHADER_SPRITE;
@@ -3124,7 +3174,7 @@ static void HWR_SplitSprite(gl_vissprite_t *spr)
 		if (h <= temp)
 		{
 			if (!lightset)
-				lightlevel = *list[i-1].lightlevel > 255 ? 255 : *list[i-1].lightlevel;
+				lightlevel = max(min(*list[i-1].lightlevel, 255), 0);
 			if (!(spr->mobj->renderflags & RF_NOCOLORMAPS))
 				colormap = *list[i-1].extra_colormap;
 			break;
@@ -3143,7 +3193,7 @@ static void HWR_SplitSprite(gl_vissprite_t *spr)
 		if (!(list[i].flags & FOF_NOSHADE) && (list[i].flags & FOF_CUTSPRITES))
 		{
 			if (!lightset)
-				lightlevel = *list[i].lightlevel > 255 ? 255 : *list[i].lightlevel;
+				lightlevel = max(min(*list[i].lightlevel, 255), 0);
 			if (!(spr->mobj->renderflags & RF_NOCOLORMAPS))
 				colormap = *list[i].extra_colormap;
 		}
@@ -3251,6 +3301,7 @@ static void HWR_DrawBoundingBox(gl_vissprite_t *vis)
 {
 	FOutVector v[24];
 	FSurfaceInfo Surf = {0};
+	RGBA_t *palette = HWR_GetTexturePalette();
 
 	//
 	// create a cube (side view)
@@ -3290,7 +3341,7 @@ static void HWR_DrawBoundingBox(gl_vissprite_t *vis)
 	v[ 3].y = v[ 4].y = v[ 5].y = v[ 9].y = v[10].y = v[11].y =
 		v[15].y = v[16].y = v[17].y = v[21].y = v[22].y = v[23].y = vis->gzt; // top
 
-	Surf.PolyColor = V_GetColor(R_GetBoundingBoxColor(vis->mobj));
+	Surf.PolyColor = palette[R_GetBoundingBoxColor(vis->mobj)];
 
 	HWR_ProcessPolygon(&Surf, v, 24, (cv_renderhitboxgldepth.value ? 0 : PF_NoDepthTest)|PF_Modulated|PF_NoTexture|PF_WireFrame, SHADER_NONE, false);
 }
@@ -3524,13 +3575,13 @@ static void HWR_DrawSprite(gl_vissprite_t *spr)
 			INT32 light = R_GetPlaneLight(sector, spr->mobj->z, false);
 
 			if (!lightset)
-				lightlevel = *sector->lightlist[light].lightlevel > 255 ? 255 : *sector->lightlist[light].lightlevel;
+				lightlevel = max(min(*sector->lightlist[light].lightlevel, 255), 0);
 
 			if (*sector->lightlist[light].extra_colormap && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
 				colormap = *sector->lightlist[light].extra_colormap;
 		}
 		else if (!lightset)
-			lightlevel = sector->lightlevel > 255 ? 255 : sector->lightlevel;
+			lightlevel = max(min(sector->lightlevel, 255), 0);
 
 		if (R_ThingIsSemiBright(spr->mobj))
 			lightlevel = 128 + (lightlevel>>1);
@@ -3543,11 +3594,15 @@ static void HWR_DrawSprite(gl_vissprite_t *spr)
 		FBITFIELD blend = 0;
 		FBITFIELD occlusion;
 		boolean use_linkdraw_hack = false;
+		fixed_t newalpha = spr->mobj->alpha;
 
 		// if sprite has linkdraw, then dont write to z-buffer (by not using PF_Occlude)
 		// this will result in sprites drawn afterwards to be drawn on top like intended when using linkdraw.
 		if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
+		{
 			occlusion = 0;
+			newalpha = spr->mobj->tracer->alpha;
+		}
 		else
 			occlusion = PF_Occlude;
 
@@ -3584,6 +3639,14 @@ static void HWR_DrawSprite(gl_vissprite_t *spr)
 			if (!occlusion) use_linkdraw_hack = true;
 		}
 
+		if (cv_translucency.value && newalpha < FRACUNIT)
+		{
+			// TODO: The ternary operator is a hack to make alpha values roughly match what their FF_TRANSMASK equivalent would be
+			// See if there's a better way of doing this
+			Surf.PolyColor.s.alpha = min(FixedMul(newalpha, Surf.PolyColor.s.alpha == 0xFF ? 256 : Surf.PolyColor.s.alpha), 0xFF);
+			blend = HWR_GetBlendModeFlag(blendmode);
+		}
+
 		if (spr->renderflags & RF_SHADOWEFFECTS)
 		{
 			INT32 alpha = Surf.PolyColor.s.alpha;
@@ -3893,7 +3956,7 @@ void HWR_AddTransparentFloor(levelflat_t *levelflat, extrasubsector_t *xsub, boo
 
 	planeinfo[numplanes].isceiling = isceiling;
 	planeinfo[numplanes].fixedheight = fixedheight;
-	planeinfo[numplanes].lightlevel = (planecolormap && (planecolormap->flags & CMF_FOG)) ? 255 : lightlevel;
+	planeinfo[numplanes].lightlevel = (planecolormap && (planecolormap->flags & CMF_FOG)) ? lightlevel : 255; // TODO: 2.3: Make transparent FOF planes always use light level
 	planeinfo[numplanes].levelflat = levelflat;
 	planeinfo[numplanes].xsub = xsub;
 	planeinfo[numplanes].alpha = alpha;
@@ -3925,7 +3988,7 @@ void HWR_AddTransparentPolyobjectFloor(levelflat_t *levelflat, polyobj_t *polyse
 
 	polyplaneinfo[numpolyplanes].isceiling = isceiling;
 	polyplaneinfo[numpolyplanes].fixedheight = fixedheight;
-	polyplaneinfo[numpolyplanes].lightlevel = (planecolormap && (planecolormap->flags & CMF_FOG)) ? 255 : lightlevel;
+	polyplaneinfo[numpolyplanes].lightlevel = (planecolormap && (planecolormap->flags & CMF_FOG)) ? lightlevel : 255;  // TODO: 2.3: Make transparent polyobject planes always use light level
 	polyplaneinfo[numpolyplanes].levelflat = levelflat;
 	polyplaneinfo[numpolyplanes].polysector = polysector;
 	polyplaneinfo[numpolyplanes].alpha = alpha;
@@ -4086,7 +4149,7 @@ static void HWR_CreateDrawNodes(void)
 		else if (sortnode[sortindex[i]].wall)
 		{
 			if (!(sortnode[sortindex[i]].wall->blend & PF_NoTexture))
-				HWR_GetTexture(sortnode[sortindex[i]].wall->texnum);
+				HWR_GetTexture(sortnode[sortindex[i]].wall->texnum, true);
 			HWR_RenderWall(sortnode[sortindex[i]].wall->wallVerts, &sortnode[sortindex[i]].wall->Surf, sortnode[sortindex[i]].wall->blend, sortnode[sortindex[i]].wall->fogwall,
 				sortnode[sortindex[i]].wall->lightlevel, sortnode[sortindex[i]].wall->wallcolormap);
 		}
@@ -5066,6 +5129,8 @@ static void HWR_DrawSkyBackground(player_t *player)
 
 	HWD.pfnSetBlend(PF_Translucent|PF_NoDepthTest|PF_Modulated);
 
+	HWR_GetTexture(texturetranslation[skytexture], false);
+
 	if (cv_glskydome.value)
 	{
 		FTransform dometransform;
@@ -5081,8 +5146,6 @@ static void HWR_DrawSkyBackground(player_t *player)
 		HWR_SetTransformAiming(&dometransform, player, false);
 		dometransform.angley = (float)((viewangle-ANGLE_270)>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
 
-		HWR_GetTexture(texturetranslation[skytexture]);
-
 		if (gl_sky.texture != texturetranslation[skytexture])
 		{
 			HWR_ClearSkyDome();
@@ -5102,7 +5165,6 @@ static void HWR_DrawSkyBackground(player_t *player)
 		float aspectratio;
 		float angleturn;
 
-		HWR_GetTexture(texturetranslation[skytexture]);
 		aspectratio = (float)vid.width/(float)vid.height;
 
 		//Hurdler: the sky is the only texture who need 4.0f instead of 1.0
@@ -5221,7 +5283,9 @@ static void HWR_SetTransformAiming(FTransform *trans, player_t *player, boolean
 	if (cv_glshearing.value == 1 || (cv_glshearing.value == 2 && R_IsViewpointThirdPerson(player, skybox)))
 	{
 		fixed_t fixedaiming = AIMINGTODY(aimingangle);
-		trans->viewaiming = FIXED_TO_FLOAT(fixedaiming);
+		trans->viewaiming = FIXED_TO_FLOAT(fixedaiming) * ((float)vid.width / vid.height) / ((float)BASEVIDWIDTH / BASEVIDHEIGHT);
+		if (splitscreen)
+			trans->viewaiming *= 2.125; // splitscreen adjusts fov with 0.8, so compensate (but only halfway, since splitscreen means only half the screen is used)
 		trans->shearing = true;
 		gl_aimingangle = 0;
 	}
@@ -5540,7 +5604,7 @@ void HWR_RenderPlayerView(INT32 viewnumber, player_t *player)
 // Can't have palette rendering if shaders are disabled.
 boolean HWR_ShouldUsePaletteRendering(void)
 {
-	return (cv_glpaletterendering.value && HWR_UseShader());
+	return (pMasterPalette != NULL && cv_glpaletterendering.value && HWR_UseShader());
 }
 
 // enable or disable palette rendering state depending on settings and availability
@@ -5610,7 +5674,6 @@ void HWR_LoadLevel(void)
 // ==========================================================================
 
 static CV_PossibleValue_t glshaders_cons_t[] = {{0, "Off"}, {1, "On"}, {2, "Ignore custom shaders"}, {0, NULL}};
-static CV_PossibleValue_t glmodelinterpolation_cons_t[] = {{0, "Off"}, {1, "Sometimes"}, {2, "Always"}, {0, NULL}};
 static CV_PossibleValue_t glfakecontrast_cons_t[] = {{0, "Off"}, {1, "On"}, {2, "Smooth"}, {0, NULL}};
 static CV_PossibleValue_t glshearing_cons_t[] = {{0, "Off"}, {1, "On"}, {2, "Third-person"}, {0, NULL}};
 
@@ -5639,7 +5702,7 @@ consvar_t cv_glcoronasize = CVAR_INIT ("gr_coronasize", "1", CV_SAVE|CV_FLOAT, 0
 #endif
 
 consvar_t cv_glmodels = CVAR_INIT ("gr_models", "Off", CV_SAVE, CV_OnOff, NULL);
-consvar_t cv_glmodelinterpolation = CVAR_INIT ("gr_modelinterpolation", "Sometimes", CV_SAVE, glmodelinterpolation_cons_t, NULL);
+consvar_t cv_glmodelinterpolation = CVAR_INIT ("gr_modelinterpolation", "On", CV_SAVE, CV_OnOff, NULL);
 consvar_t cv_glmodellighting = CVAR_INIT ("gr_modellighting", "Off", CV_SAVE|CV_CALL, CV_OnOff, CV_glmodellighting_OnChange);
 
 consvar_t cv_glshearing = CVAR_INIT ("gr_shearing", "Off", CV_SAVE, glshearing_cons_t, NULL);
@@ -5657,7 +5720,7 @@ consvar_t cv_glbatching = CVAR_INIT ("gr_batching", "On", 0, CV_OnOff, NULL);
 
 static CV_PossibleValue_t glpalettedepth_cons_t[] = {{16, "16 bits"}, {24, "24 bits"}, {0, NULL}};
 
-consvar_t cv_glpaletterendering = CVAR_INIT ("gr_paletterendering", "Off", CV_SAVE|CV_CALL, CV_OnOff, CV_glpaletterendering_OnChange);
+consvar_t cv_glpaletterendering = CVAR_INIT ("gr_paletterendering", "On", CV_SAVE|CV_CALL, CV_OnOff, CV_glpaletterendering_OnChange);
 consvar_t cv_glpalettedepth = CVAR_INIT ("gr_palettedepth", "16 bits", CV_SAVE|CV_CALL, glpalettedepth_cons_t, CV_glpalettedepth_OnChange);
 
 #define ONLY_IF_GL_LOADED if (vid.glstate != VID_GL_LIBRARY_LOADED) return;
@@ -5729,6 +5792,7 @@ void HWR_AddCommands(void)
 	CV_RegisterVar(&cv_glskydome);
 	CV_RegisterVar(&cv_glspritebillboarding);
 	CV_RegisterVar(&cv_glfakecontrast);
+	CV_RegisterVar(&cv_glslopecontrast);
 	CV_RegisterVar(&cv_glshearing);
 	CV_RegisterVar(&cv_glshaders);
 

src/hardware/hw_main.h

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -43,6 +43,7 @@ void HWR_MakePatch(const patch_t *patch, GLPatch_t *grPatch, GLMipmap_t *grMipma
 void HWR_CreatePlanePolygons(INT32 bspnum);
 void HWR_CreateStaticLightmaps(INT32 bspnum);
 void HWR_DrawFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color);
+void HWR_DrawFixedFill(fixed_t x, fixed_t y, fixed_t w, fixed_t h, INT32 color);
 void HWR_DrawFadeFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color, UINT16 actualcolor, UINT8 strength);
 void HWR_DrawConsoleFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color, UINT32 actualcolor);	// Lat: separate flags from color since color needs to be an uint to work right.
 

src/hardware/hw_md2.c

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -1062,15 +1062,11 @@ static boolean HWR_AllowModel(mobj_t *mobj)
 
 static boolean HWR_CanInterpolateModel(mobj_t *mobj, model_t *model)
 {
-	if (cv_glmodelinterpolation.value == 2) // Always interpolate
-		return true;
 	return model->interpolate[(mobj->frame & FF_FRAMEMASK)];
 }
 
 static boolean HWR_CanInterpolateSprite2(modelspr2frames_t *spr2frame)
 {
-	if (cv_glmodelinterpolation.value == 2) // Always interpolate
-		return true;
 	return spr2frame->interpolate;
 }
 
@@ -1093,19 +1089,19 @@ static modelspr2frames_t *HWR_GetModelSprite2Frames(md2_t *md2, UINT16 spr2)
 			return &md2->model->superspr2frames[spr2];
 	}
 
-	if (md2->model->spr2frames)
+	if (md2->model->spr2frames[spr2].numframes)
 		return &md2->model->spr2frames[spr2];
 
 	return NULL;
 }
 
-static modelspr2frames_t *HWR_GetModelSprite2(md2_t *md2, skin_t *skin, UINT16 spr2, player_t *player)
+static UINT16 HWR_GetModelSprite2Num(md2_t *md2, skin_t *skin, UINT16 spr2, player_t *player)
 {
 	UINT16 super = 0;
 	UINT8 i = 0;
 
 	if (!md2 || !md2->model || !skin)
-		return HWR_GetModelSprite2Frames(md2, 0);
+		return 0;
 
 	while (!HWR_GetModelSprite2Frames(md2, spr2)
 		&& spr2 != SPR2_STND
@@ -1145,7 +1141,7 @@ static modelspr2frames_t *HWR_GetModelSprite2(md2_t *md2, skin_t *skin, UINT16 s
 	if (i >= 32) // probably an infinite loop...
 		spr2 = 0;
 
-	return HWR_GetModelSprite2Frames(md2, spr2);
+	return spr2;
 }
 
 // Adjust texture coords of model to fit into a patch's max_s and max_t
@@ -1154,6 +1150,9 @@ static void adjustTextureCoords(model_t *model, patch_t *patch)
 	int i;
 	GLPatch_t *gpatch = ((GLPatch_t *)patch->hardware);
 
+	if (!gpatch)
+		return;
+
 	for (i = 0; i < model->numMeshes; i++)
 	{
 		int j;
@@ -1190,6 +1189,90 @@ static void adjustTextureCoords(model_t *model, patch_t *patch)
 	model->max_t = gpatch->max_t;
 }
 
+static INT32 GetAnimDuration(mobj_t *mobj) //part of p_mobj's setplayermobjstate logic, used to make sure that anim durations are actually correct when the speed gets adjusted on players
+{
+	player_t *player = mobj->player;
+	INT32 tics = mobj->state->tics;
+
+	if (!(mobj->frame & FF_ANIMATE) && mobj->anim_duration) //set manually by something through lua
+		return mobj->anim_duration;
+
+	if (!player && mobj->type == MT_TAILSOVERLAY && mobj->tracer) //so tails overlays interpolate properly
+		player = mobj->tracer->player;
+	if (player)
+	{
+		if (player->panim == PA_EDGE && (player->charflags & SF_FASTEDGE))
+			tics = 2;
+		else if (player->powers[pw_tailsfly] && (!(player->mo->eflags & MFE_UNDERWATER) || (mobj->type == MT_PLAYER))) //tailsoverlay does not get adjusted from these rules when underwater
+		{
+			if (player->fly1 > 0)
+				tics = 1;
+			else if (!(player->mo->eflags & MFE_UNDERWATER))
+				tics = 2;
+			else
+				tics = 4;
+		}
+		else if (!(disableSpeedAdjust || player->charflags & SF_NOSPEEDADJUST))
+		{
+			fixed_t speed;// = FixedDiv(player->speed, FixedMul(mobj->scale, player->mo->movefactor));
+			if (player->panim == PA_FALL)
+			{
+				speed = FixedDiv(abs(mobj->momz), mobj->scale);
+				if (speed < 10<<FRACBITS)
+					tics = 4;
+				else if (speed < 20<<FRACBITS)
+					tics = 3;
+				else if (speed < 30<<FRACBITS)
+					tics = 2;
+				else
+					tics = 1;
+			}
+			else if (player->panim == PA_ABILITY2 && player->charability2 == CA2_SPINDASH)
+			{
+				fixed_t step = (player->maxdash - player->mindash)/4;
+				speed = (player->dashspeed - player->mindash);
+				if (speed > 3*step)
+					tics = 1;
+				else if (speed > step)
+					tics = 2;
+				else
+					tics = 3;
+			}
+			else
+			{
+				speed = FixedDiv(player->speed, FixedMul(mobj->scale, player->mo->movefactor));
+				if (player->panim == PA_ROLL || player->panim == PA_JUMP)
+				{
+					if (speed > 16<<FRACBITS)
+						tics = 1;
+					else
+						tics = 2;
+				}
+				else if (P_IsObjectOnGround(mobj) || ((player->charability == CA_FLOAT || player->charability == CA_SLOWFALL) && player->secondjump == 1) || player->powers[pw_super]) // Only if on the ground or superflying.
+				{
+					if (player->panim == PA_WALK)
+					{
+						if (speed > 12<<FRACBITS)
+							tics = 2;
+						else if (speed > 6<<FRACBITS)
+							tics = 3;
+						else
+							tics = 4;
+					}
+					else if ((player->panim == PA_RUN) || (player->panim == PA_DASH))
+					{
+						if (speed > 52<<FRACBITS)
+							tics = 1;
+						else
+							tics = 2;
+					}
+				}
+			}
+		}
+	}
+	return tics;
+}
+
 //
 // HWR_DrawModel
 //
@@ -1236,7 +1319,7 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 			else if (R_ThingIsSemiBright(spr->mobj))
 				lightlevel = 128 + (*sector->lightlist[light].lightlevel>>1);
 			else if (!R_ThingIsFullBright(spr->mobj))
-				lightlevel = *sector->lightlist[light].lightlevel > 255 ? 255 : *sector->lightlist[light].lightlevel;
+				lightlevel = max(min(255, *sector->lightlist[light].lightlevel), 0);
 
 			if (*sector->lightlist[light].extra_colormap)
 				colormap = *sector->lightlist[light].extra_colormap;
@@ -1248,7 +1331,7 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 			else if (R_ThingIsSemiBright(spr->mobj))
 				lightlevel = 128 + (sector->lightlevel>>1);
 			else if (!R_ThingIsFullBright(spr->mobj))
-				lightlevel = sector->lightlevel > 255 ? 255 : sector->lightlevel;
+				lightlevel = max(min(255, sector->lightlevel), 0);
 
 			if (sector->extra_colormap)
 				colormap = sector->extra_colormap;
@@ -1263,12 +1346,13 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 	{
 		patch_t *gpatch, *blendgpatch;
 		GLPatch_t *hwrPatch = NULL, *hwrBlendPatch = NULL;
-		float durs = (float)spr->mobj->state->tics;
+		float durs = GetAnimDuration(spr->mobj);
 		float tics = (float)spr->mobj->tics;
 		const boolean papersprite = (R_ThingIsPaperSprite(spr->mobj) && !R_ThingIsFloorSprite(spr->mobj));
 		const UINT8 flip = (UINT8)(!(spr->mobj->eflags & MFE_VERTICALFLIP) != !R_ThingVerticallyFlipped(spr->mobj));
 		const UINT8 hflip = (UINT8)(!(spr->mobj->mirrored) != !R_ThingHorizontallyFlipped(spr->mobj));
 		spritedef_t *sprdef;
+		UINT16 spr2 = 0;
 		spriteframe_t *sprframe;
 		INT32 mod;
 		interpmobjstate_t interp;
@@ -1283,8 +1367,13 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 		}
 
 		// Apparently people don't like jump frames like that, so back it goes
-		//if (tics > durs)
-			//durs = tics;
+		if (tics > durs)
+			durs = tics;
+
+		// Make linkdraw objects use their tracer's alpha value
+		fixed_t newalpha = spr->mobj->alpha;
+		if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
+			newalpha = spr->mobj->tracer->alpha;
 
 		INT32 blendmode;
 		if (spr->mobj->frame & FF_BLENDMASK)
@@ -1300,6 +1389,13 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 			Surf.PolyFlags = HWR_GetBlendModeFlag(blendmode);
 		}
 		
+		if (newalpha < FRACUNIT)
+		{
+			// TODO: The ternary operator is a hack to make alpha values roughly match what their FF_TRANSMASK equivalent would be
+			// See if there's a better way of doing this
+			Surf.PolyColor.s.alpha = min(FixedMul(newalpha, Surf.PolyColor.s.alpha == 0xFF ? 256 : Surf.PolyColor.s.alpha), 0xFF);
+		}
+
 		// don't forget to enable the depth test because we can't do this
 		// like before: model polygons are not sorted
 
@@ -1438,13 +1534,17 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 
 		frame = (spr->mobj->frame & FF_FRAMEMASK);
 		if (spr->mobj->skin && spr->mobj->sprite == SPR_PLAY)
-			spr2frames = HWR_GetModelSprite2(md2, spr->mobj->skin, spr->mobj->sprite2, spr->mobj->player);
+		{
+			spr2 = HWR_GetModelSprite2Num(md2, spr->mobj->skin, spr->mobj->sprite2, spr->mobj->player);
+			spr2frames = HWR_GetModelSprite2Frames(md2, spr2);
+		}
 		if (spr2frames)
 		{
+			spritedef_t *defaultdef = P_GetSkinSpritedef(spr->mobj->skin, spr2);
 			mod = spr2frames->numframes;
 #ifndef DONTHIDEDIFFANIMLENGTH // by default, different anim length is masked by the mod
-			if (mod > (INT32)sprdef->numframes)
-				mod = sprdef->numframes;
+			if (mod > (INT32)defaultdef->numframes)
+				mod = defaultdef->numframes;
 #endif
 			if (!mod)
 				mod = 1;
@@ -1592,7 +1692,6 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 			HWD.pfnDrawModel(md2->model, frame, durs, tics, nextFrame, &p, md2->scale * xs, md2->scale * ys, flip, hflip, &Surf);
 		}
 	}
-
 	return true;
 }
 

src/hardware/hw_model.h

@@ -75,7 +75,7 @@ typedef struct mesh_s
 typedef struct tag_s
 {
 	char name[64];
-//	matrix_t transform;
+//	oldmatrix_t transform;
 } tag_t;
 
 #define MODEL_INTERPOLATION_FLAG "+i"

src/hardware/hw_shaders.c

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2021-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -448,6 +448,101 @@ void HWR_LoadAllCustomShaders(void)
 		HWR_LoadCustomShadersFromFile(i, W_FileHasFolders(wadfiles[i]));
 }
 
+static const char version_directives[][14] = {
+	"#version 330\n",
+	"#version 150\n",
+	"#version 140\n",
+	"#version 130\n",
+	"#version 120\n",
+	"#version 110\n",
+};
+
+static boolean HWR_VersionDirectiveExists(const char* source)
+{
+    return strncmp(source, "#version", 8) == 0;
+}
+
+static char* HWR_PrependVersionDirective(const char* source, UINT32 version_index)
+{
+	const UINT32 version_len = sizeof(version_directives[version_index]) - 1;
+	const UINT32 source_len = strlen(source);
+
+	char* result = Z_Malloc(source_len + version_len + 1, PU_STATIC, NULL);
+	strcpy(result, version_directives[version_index]);
+	strcpy(result + version_len, source);
+
+	return result;
+}
+
+static void HWR_ReplaceVersionInplace(char* shader, UINT32 version_index)
+{
+	shader[9] = version_directives[version_index][9];
+	shader[10] = version_directives[version_index][10];
+	shader[11] = version_directives[version_index][11];
+}
+
+static boolean HWR_CheckVersionDirectives(const char* vert, const char* frag)
+{
+	return HWR_VersionDirectiveExists(vert) && HWR_VersionDirectiveExists(frag);
+}
+
+static void HWR_TryToCompileShaderWithImplicitVersion(INT32 shader_index, INT32 shaderxlat_id)
+{
+	char* vert_shader = gl_shaders[shader_index].vertex;
+	char* frag_shader = gl_shaders[shader_index].fragment;
+
+	boolean vert_shader_version_exists = HWR_VersionDirectiveExists(vert_shader);
+	boolean frag_shader_version_exists = HWR_VersionDirectiveExists(frag_shader);
+
+	if(!vert_shader_version_exists) {
+		CONS_Alert(CONS_WARNING, "HWR_LoadCustomShadersFromFile: vertex shader '%s' is missing a #version directive\n", HWR_GetShaderName(shaderxlat_id));
+	}
+
+	if(!frag_shader_version_exists) {
+		CONS_Alert(CONS_WARNING, "HWR_LoadCustomShadersFromFile: fragment shader '%s' is missing a #version directive\n", HWR_GetShaderName(shaderxlat_id));
+	}
+
+	// try to compile as is
+	HWR_CompileShader(shader_index);
+	if (gl_shaders[shader_index].compiled)
+		return;
+
+	// try each version directive
+	for(UINT32 i = 0; i < sizeof(version_directives) / sizeof(version_directives[0]); ++i) {
+		CONS_Alert(CONS_NOTICE, "HWR_TryToCompileShaderWithImplicitVersion: Trying %s\n", version_directives[i]);
+
+		if(!vert_shader_version_exists) {
+			// first time reallocation would have to be made
+
+			if(i == 0) {
+				void* old = (void*)gl_shaders[shader_index].vertex;
+				vert_shader = gl_shaders[shader_index].vertex = HWR_PrependVersionDirective(vert_shader, i);
+				Z_Free(old);
+			} else {
+				HWR_ReplaceVersionInplace(vert_shader, i);
+			}
+		}
+
+		if(!frag_shader_version_exists) {
+			if(i == 0) {
+				void* old = (void*)gl_shaders[shader_index].fragment;
+				frag_shader = gl_shaders[shader_index].fragment = HWR_PrependVersionDirective(frag_shader, i);
+				Z_Free(old);
+			} else {
+				HWR_ReplaceVersionInplace(frag_shader, i);
+			}
+		}
+
+		HWR_CompileShader(shader_index);
+		if (gl_shaders[shader_index].compiled) {
+			CONS_Alert(CONS_NOTICE, "HWR_TryToCompileShaderWithImplicitVersion: Compiled with %s\n",
+					   version_directives[i]);
+			CONS_Alert(CONS_WARNING, "Implicit GLSL version is used. Correct behavior is not guaranteed\n");
+			return;
+		}
+	}
+}
+
 void HWR_LoadCustomShadersFromFile(UINT16 wadnum, boolean PK3)
 {
 	UINT16 lump;
@@ -610,7 +705,13 @@ skip_field:
 				gl_shaders[shader_index].fragment = Z_StrDup(gl_shadersources[i].fragment);
 			if (!gl_shaders[shader_index].vertex)
 				gl_shaders[shader_index].vertex = Z_StrDup(gl_shadersources[i].vertex);
+
+			if(!HWR_CheckVersionDirectives(gl_shaders[shader_index].vertex, gl_shaders[shader_index].fragment)) {
+				HWR_TryToCompileShaderWithImplicitVersion(shader_index, i);
+			} else {
 				HWR_CompileShader(shader_index);
+			}
+
 			if (!gl_shaders[shader_index].compiled)
 				CONS_Alert(CONS_ERROR, "HWR_LoadCustomShadersFromFile: A compilation error occured for the %s shader in file %s. See the console messages above for more information.\n", shaderxlat[i].type, wadfiles[wadnum]->filename);
 		}

src/hardware/hw_shaders.h

 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2021-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.

src/hardware/r_opengl/ogl_win.c

@@ -117,7 +117,7 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, // handle to DLL module
 #define pwglDeleteContext wglDeleteContext;
 #define pwglMakeCurrent wglMakeCurrent;
 #else
-static HMODULE OGL32, GLU32;
+static HMODULE OGL32;
 typedef void *(WINAPI *PFNwglGetProcAddress) (const char *);
 static PFNwglGetProcAddress pwglGetProcAddress;
 typedef HGLRC (WINAPI *PFNwglCreateContext) (HDC hdc);
@@ -132,13 +132,6 @@ static PFNwglMakeCurrent pwglMakeCurrent;
 void *GetGLFunc(const char *proc)
 {
 	void *func = NULL;
-	if (strncmp(proc, "glu", 3) == 0)
-	{
-		if (GLU32)
-			func = GetProcAddress(GLU32, proc);
-		else
-			return NULL;
-	}
 	if (pwglGetProcAddress)
 		func = pwglGetProcAddress(proc);
 	if (!func)
@@ -155,8 +148,6 @@ boolean LoadGL(void)
 	if (!OGL32)
 		return 0;
 
-	GLU32 = LoadLibrary("GLU32.DLL");
-
 	pwglGetProcAddress = GetGLFunc("wglGetProcAddress");
 	pwglCreateContext = GetGLFunc("wglCreateContext");
 	pwglDeleteContext = GetGLFunc("wglDeleteContext");
@@ -528,7 +519,6 @@ EXPORT void HWRAPI(Shutdown) (void)
 		ReleaseDC(hWnd, hDC);
 		hDC = NULL;
 	}
-	FreeLibrary(GLU32);
 	FreeLibrary(OGL32);
 	GL_DBG_Printf ("HWRAPI Shutdown(DONE)\n");
 }

src/hardware/r_opengl/r_opengl.c

@@ -96,6 +96,7 @@ static GLint min_filter = GL_LINEAR;
 static GLint mag_filter = GL_LINEAR;
 static GLint anisotropic_filter = 0;
 static boolean model_lighting = false;
+boolean supportMipMap = false;
 
 const GLubyte *gl_version = NULL;
 const GLubyte *gl_renderer = NULL;
@@ -154,23 +155,24 @@ static const GLfloat byte2float[256] = {
 // -----------------+
 
 #ifdef DEBUG_TO_FILE
-FILE *gllogstream;
+FILE *gllogstream = NULL;
 #endif
 
+
 FUNCPRINTF void GL_DBG_Printf(const char *format, ...)
 {
 #ifdef DEBUG_TO_FILE
 	char str[4096] = "";
 	va_list arglist;
 
-	if (!gllogstream)
-		gllogstream = fopen("ogllog.txt", "w");
-
+	if (gllogstream) 
+	{	
 		va_start(arglist, format);
 		vsnprintf(str, 4096, format, arglist);
 		va_end(arglist);
 
 		fwrite(str, strlen(str), 1, gllogstream);
+	}
 #else
 	(void)format;
 #endif
@@ -226,7 +228,6 @@ FUNCPRINTF static void GL_MSG_Error(const char *format, ...)
 /* 1.0 functions */
 /* Miscellaneous */
 #define pglClearColor glClearColor
-//glClear
 #define pglColorMask glColorMask
 #define pglAlphaFunc glAlphaFunc
 #define pglBlendFunc glBlendFunc
@@ -236,9 +237,7 @@ FUNCPRINTF static void GL_MSG_Error(const char *format, ...)
 #define pglEnable glEnable
 #define pglDisable glDisable
 #define pglGetFloatv glGetFloatv
-//glGetIntegerv
-//glGetString
-#define pglHint glHint
+#define pglPolygonMode glPolygonMode
 
 /* Depth Buffer */
 #define pglClearDepth glClearDepth
@@ -282,6 +281,7 @@ FUNCPRINTF static void GL_MSG_Error(const char *format, ...)
 /* Texture mapping */
 #define pglTexEnvi glTexEnvi
 #define pglTexParameteri glTexParameteri
+#define pglTexImage1D glTexImage1D
 #define pglTexImage2D glTexImage2D
 #define pglTexSubImage2D glTexSubImage2D
 
@@ -417,9 +417,6 @@ static PFNglCopyTexImage2D pglCopyTexImage2D;
 typedef void (APIENTRY * PFNglCopyTexSubImage2D) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
 static PFNglCopyTexSubImage2D pglCopyTexSubImage2D;
 #endif
-/* GLU functions */
-typedef GLint (APIENTRY * PFNgluBuild2DMipmaps) (GLenum target, GLint internalFormat, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *data);
-static PFNgluBuild2DMipmaps pgluBuild2DMipmaps;
 
 /* 1.2 functions for 3D textures */
 typedef void (APIENTRY * PFNglTexImage3D) (GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
@@ -670,6 +667,7 @@ void SetupGLFunc4(void)
 {
 	/* 1.2 funcs */
 	pglTexImage3D = GetGLFunc("glTexImage3D");
+
 	/* 1.3 funcs */
 	pglActiveTexture = GetGLFunc("glActiveTexture");
 	pglMultiTexCoord2f = GetGLFunc("glMultiTexCoord2f");
@@ -708,9 +706,6 @@ void SetupGLFunc4(void)
 	pglUniform3fv = GetGLFunc("glUniform3fv");
 	pglGetUniformLocation = GetGLFunc("glGetUniformLocation");
 #endif
-
-	// GLU
-	pgluBuild2DMipmaps = GetGLFunc("gluBuild2DMipmaps");
 }
 
 EXPORT boolean HWRAPI(InitShaders) (void)
@@ -1617,7 +1612,8 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
 		//pglTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
 		if (MipMap)
 		{
-			pgluBuild2DMipmaps(GL_TEXTURE_2D, GL_LUMINANCE_ALPHA, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
+			pglTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
+			pglTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
 			pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, 0);
 			if (pTexInfo->flags & TF_TRANSPARENT)
 				pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, 0); // No mippmaps on transparent stuff
@@ -1638,7 +1634,8 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
 		//pglTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
 		if (MipMap)
 		{
-			pgluBuild2DMipmaps(GL_TEXTURE_2D, GL_ALPHA, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
+			pglTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
+			pglTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
 			pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, 0);
 			if (pTexInfo->flags & TF_TRANSPARENT)
 				pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, 0); // No mippmaps on transparent stuff
@@ -1658,7 +1655,8 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
 	{
 		if (MipMap)
 		{
-			pgluBuild2DMipmaps(GL_TEXTURE_2D, textureformatGL, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
+			pglTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
+			pglTexImage2D(GL_TEXTURE_2D, 0, textureformatGL, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
 			// Control the mipmap level of detail
 			pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, 0); // the lower the number, the higer the detail
 			if (pTexInfo->flags & TF_TRANSPARENT)
@@ -2241,7 +2239,7 @@ EXPORT void HWRAPI(SetSpecialState) (hwdspecialstate_t IdState, INT32 Value)
 					mag_filter = GL_LINEAR;
 					min_filter = GL_NEAREST;
 			}
-			if (!pgluBuild2DMipmaps)
+			if (!supportMipMap)
 			{
 				MipMap = GL_FALSE;
 				min_filter = GL_LINEAR;
@@ -3257,6 +3255,24 @@ EXPORT UINT32 HWRAPI(CreateLightTable)(RGBA_t *hw_lighttable)
 	return item->id;
 }
 
+EXPORT void HWRAPI(UpdateLightTable)(UINT32 id, RGBA_t *hw_lighttable)
+{
+	LTListItem *item = LightTablesHead;
+	while (item && item->id != id)
+		item = item->next;
+
+	if (item)
+	{
+		pglBindTexture(GL_TEXTURE_2D, item->id);
+
+		// Just update it
+		pglTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 256, 32, GL_RGBA, GL_UNSIGNED_BYTE, hw_lighttable);
+
+		// restore previously bound texture
+		pglBindTexture(GL_TEXTURE_2D, tex_downloaded);
+	}
+}
+
 // Delete light table textures, ids given before become invalid and must not be used.
 EXPORT void HWRAPI(ClearLightTables)(void)
 {

src/hardware/r_opengl/r_opengl.h

@@ -35,7 +35,6 @@
 
 #else
 #include <GL/gl.h>
-#include <GL/glu.h>
 
 #ifdef STATIC_OPENGL // Because of the 1.3 functions, you'll need GLext to compile it if static
 #define GL_GLEXT_PROTOTYPES
@@ -127,6 +126,7 @@ extern GLint			screen_width;
 extern GLint			screen_height;
 extern GLbyte			screen_depth;
 extern GLint			maximumAnisotropy;
+extern boolean 			supportMipMap;
 
 /**	\brief OpenGL flags for video driver
 */

src/hu_stuff.c

@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1993-1996 by id Software, Inc.
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -29,7 +29,7 @@
 #include "i_video.h"
 #include "i_system.h"
 
-#include "st_stuff.h" // ST_HEIGHT
+#include "st_stuff.h"
 #include "r_local.h"
 
 #include "keys.h"
@@ -52,6 +52,7 @@
 #include "lua_hud.h"
 #include "lua_hudlib_drawlist.h"
 #include "lua_hook.h"
+#include "lua_libs.h"
 
 // coords are scaled
 #define HU_INPUTX 0
@@ -204,7 +205,7 @@ void HU_LoadGraphics(void)
 	HU_SetFontProperties(&hu_font,   0,  4,  8, 12);
 	HU_SetFontProperties(&tny_font,  0,  2,  4, 12);
 	HU_SetFontProperties(&cred_font, 0, 16, 16, 16);
-	HU_SetFontProperties(&lt_font,   0, 16, 20, 20);
+	HU_SetFontProperties(&lt_font,   0, 16, 20, 16);
 	HU_SetFontProperties(&ntb_font,  2,  4, 20, 21);
 	HU_SetFontProperties(&nto_font,  0,  4, 20, 21);
 
@@ -272,7 +273,7 @@ void HU_LoadFontCharacters(fontdef_t *font, const char *prefix)
 		for (i = 0; i < FONTSIZE; i++, j++)
 		{
 			sprintf(buffer, "%.5s%.3d", prefix, j);
-			if (W_CheckNumForName(buffer) == LUMPERROR)
+			if (W_CheckNumForPatchName(buffer) == LUMPERROR)
 				font->chars[i] = NULL;
 			else
 				font->chars[i] = (patch_t *)W_CachePatchName(buffer, PU_HUDGFX);
@@ -377,7 +378,7 @@ static void HU_removeChatText_Log(void)
 void HU_AddChatText(const char *text, boolean playsound)
 {
 	if (playsound && cv_consolechat.value != 2) // Don't play the sound if we're using hidden chat.
-		S_StartSound(NULL, sfx_radio);
+		S_StartSoundFromEverywhere(sfx_radio);
 	// reguardless of our preferences, put all of this in the chat buffer in case we decide to change from oldchat mid-game.
 
 	if (chat_nummsg_log >= CHAT_BUFSIZE) // too many messages!
@@ -396,7 +397,10 @@ void HU_AddChatText(const char *text, boolean playsound)
 	if (OLDCHAT) // if we're using oldchat, print directly in console
 		CONS_Printf("%s\n", text);
 	else			// if we aren't, still save the message to log.txt	
-		CON_LogMessage(va("%s\n", text));
+	{
+		CON_LogMessage(text);
+		CON_LogMessage("\n"); // Add newline. Don't use va for that, since `text` might be refering to va's buffer itself
+	}
 }
 
 /** Runs a say command, sending an ::XD_SAY message.
@@ -587,8 +591,47 @@ static void Command_CSay_f(void)
 	DoSayCommand(0, 1, HU_CSAY);
 }
 
-static tic_t spam_tokens[MAXPLAYERS] = { 1 }; // fill the buffer with 1 so the motd can be sent.
-static tic_t spam_tics[MAXPLAYERS];
+UINT8 spam_tokens[MAXPLAYERS] = { 1 }; // fill the buffer with 1 so the motd can be sent.
+tic_t spam_tics[MAXPLAYERS];
+
+static const char *GetChatColorFromSkinColor(INT32 skincolor)
+{
+	const char *textcolor = NULL;
+	UINT16 chatcolor = skincolors[skincolor].chatcolor;
+	if (!chatcolor || chatcolor%0x1000 || chatcolor>V_INVERTMAP)
+		textcolor = "\x80";
+	else if (chatcolor == V_MAGENTAMAP)
+		textcolor = "\x81";
+	else if (chatcolor == V_YELLOWMAP)
+		textcolor = "\x82";
+	else if (chatcolor == V_GREENMAP)
+		textcolor = "\x83";
+	else if (chatcolor == V_BLUEMAP)
+		textcolor = "\x84";
+	else if (chatcolor == V_REDMAP)
+		textcolor = "\x85";
+	else if (chatcolor == V_GRAYMAP)
+		textcolor = "\x86";
+	else if (chatcolor == V_ORANGEMAP)
+		textcolor = "\x87";
+	else if (chatcolor == V_SKYMAP)
+		textcolor = "\x88";
+	else if (chatcolor == V_PURPLEMAP)
+		textcolor = "\x89";
+	else if (chatcolor == V_AQUAMAP)
+		textcolor = "\x8a";
+	else if (chatcolor == V_PERIDOTMAP)
+		textcolor = "\x8b";
+	else if (chatcolor == V_AZUREMAP)
+		textcolor = "\x8c";
+	else if (chatcolor == V_BROWNMAP)
+		textcolor = "\x8d";
+	else if (chatcolor == V_ROSYMAP)
+		textcolor = "\x8e";
+	else if (chatcolor == V_INVERTMAP)
+		textcolor = "\x8f";
+	return textcolor;
+}
 
 /** Receives a message, processing an ::XD_SAY command.
   * \sa DoSayCommand
@@ -599,6 +642,7 @@ static void Got_Saycmd(UINT8 **p, INT32 playernum)
 	SINT8 target;
 	UINT8 flags;
 	const char *dispname;
+	char buf[HU_MAXMSGLEN + 1];
 	char *msg;
 	boolean action = false;
 	char *ptr;
@@ -608,8 +652,8 @@ static void Got_Saycmd(UINT8 **p, INT32 playernum)
 
 	target = READSINT8(*p);
 	flags = READUINT8(*p);
-	msg = (char *)*p;
-	SKIPSTRINGL(*p, HU_MAXMSGLEN + 1);
+	msg = buf;
+	READSTRINGL(*p, msg, HU_MAXMSGLEN + 1);
 
 	if ((cv_mute.value || players[playernum].muted || flags & (HU_CSAY|HU_SERVER_SAY)) && playernum != serverplayer && !(IsPlayerAdmin(playernum)))
 	{
@@ -649,14 +693,12 @@ static void Got_Saycmd(UINT8 **p, INT32 playernum)
 	else
 		spam_tokens[playernum] -= 1;
 
-	// run the lua hook even if we were supposed to eat the msg, netgame consistency goes first.
+	if (spam_eatmsg)
+		return; // don't proceed if we were supposed to eat the message.
 
 	if (LUA_HookPlayerMsg(playernum, target, flags, msg))
 		return;
 
-	if (spam_eatmsg)
-		return; // don't proceed if we were supposed to eat the message.
-
 	// If it's a CSAY, just CECHO and be done with it.
 	if (flags & HU_CSAY)
 	{
@@ -711,51 +753,27 @@ static void Got_Saycmd(UINT8 **p, INT32 playernum)
 		{
 			if (players[playernum].ctfteam == 1) // red
 			{
-				cstart = "\x85";
-				textcolor = "\x85";
+				cstart = textcolor = GetChatColorFromSkinColor(skincolor_redteam);
 			}
 			else // blue
 			{
-				cstart = "\x84";
-				textcolor = "\x84";
+				cstart = textcolor = GetChatColorFromSkinColor(skincolor_blueteam);
 			}
 		}
 		else
         {
-			UINT16 chatcolor = skincolors[players[playernum].skincolor].chatcolor;
-
-			if (!chatcolor || chatcolor%0x1000 || chatcolor>V_INVERTMAP)
-				cstart = "\x80";
-			else if (chatcolor == V_MAGENTAMAP)
-				cstart = "\x81";
-			else if (chatcolor == V_YELLOWMAP)
-				cstart = "\x82";
-			else if (chatcolor == V_GREENMAP)
-				cstart = "\x83";
-			else if (chatcolor == V_BLUEMAP)
-				cstart = "\x84";
-			else if (chatcolor == V_REDMAP)
-				cstart = "\x85";
-			else if (chatcolor == V_GRAYMAP)
-				cstart = "\x86";
-			else if (chatcolor == V_ORANGEMAP)
-				cstart = "\x87";
-			else if (chatcolor == V_SKYMAP)
-				cstart = "\x88";
-			else if (chatcolor == V_PURPLEMAP)
-				cstart = "\x89";
-			else if (chatcolor == V_AQUAMAP)
-				cstart = "\x8a";
-			else if (chatcolor == V_PERIDOTMAP)
-				cstart = "\x8b";
-			else if (chatcolor == V_AZUREMAP)
-				cstart = "\x8c";
-			else if (chatcolor == V_BROWNMAP)
-				cstart = "\x8d";
-			else if (chatcolor == V_ROSYMAP)
-				cstart = "\x8e";
-			else if (chatcolor == V_INVERTMAP)
-				cstart = "\x8f";
+			cstart = GetChatColorFromSkinColor(players[playernum].skincolor);
+			if (G_GametypeHasTeams())
+			{
+				if (players[playernum].ctfteam == 1) // red
+				{
+					cstart = GetChatColorFromSkinColor(skincolor_redteam);
+				}
+				else // blue
+				{
+					cstart = GetChatColorFromSkinColor(skincolor_blueteam);
+				}
+			}
         }
 		prefix = cstart;
 
@@ -999,6 +1017,7 @@ static void HU_sendChatMessage(void)
 void HU_clearChatChars(void)
 {
 	memset(w_chat, '\0', sizeof(w_chat));
+	I_SetTextInputMode(textinputmodeenabledbylua);
 	chat_on = false;
 	c_input = 0;
 
@@ -1048,6 +1067,7 @@ boolean HU_Responder(event_t *ev)
 		if ((ev->key == gamecontrol[GC_TALKKEY][0] || ev->key == gamecontrol[GC_TALKKEY][1])
 			&& netgame && !OLD_MUTE) // check for old chat mute, still let the players open the chat incase they want to scroll otherwise.
 		{
+			I_SetTextInputMode(true);
 			chat_on = true;
 			chat_on_first_event = false;
 			w_chat[0] = 0;
@@ -1059,6 +1079,7 @@ boolean HU_Responder(event_t *ev)
 		if ((ev->key == gamecontrol[GC_TEAMKEY][0] || ev->key == gamecontrol[GC_TEAMKEY][1])
 			&& netgame && !OLD_MUTE)
 		{
+			I_SetTextInputMode(true);
 			chat_on = true;
 			chat_on_first_event = false;
 			w_chat[0] = 0;
@@ -1133,6 +1154,7 @@ boolean HU_Responder(event_t *ev)
 			if (!CHAT_MUTE)
 				HU_sendChatMessage();
 
+			I_SetTextInputMode(textinputmodeenabledbylua);
 			chat_on = false;
 			c_input = 0; // reset input cursor
 			chat_scrollmedown = true; // you hit enter, so you might wanna autoscroll to see what you just sent. :)
@@ -1143,6 +1165,7 @@ boolean HU_Responder(event_t *ev)
 			|| c == gamecontrol[GC_TEAMKEY][0] || c == gamecontrol[GC_TEAMKEY][1])
 			&& c >= KEY_MOUSE1)) // If it's not a keyboard key, then the chat button is used as a toggle.
 		{
+			I_SetTextInputMode(textinputmodeenabledbylua);
 			chat_on = false;
 			c_input = 0; // reset input cursor
 			I_UpdateMouseGrab();
@@ -1213,27 +1236,36 @@ static void HU_drawMiniChat(void)
 	INT32 charwidth = 4, charheight = 6;
 	INT32 boxw = cv_chatwidth.value;
 	INT32 dx = 0, dy = 0;
+	boolean prev_linereturn = false;
 
 	if (!chat_nummsg_min)
 		return; // needless to say it's useless to do anything if we don't have anything to draw.
 
 	for (size_t i = chat_nummsg_min; i > 0; i--)
 	{
-		char *msg = V_ChatWordWrap(chatx, boxw-charwidth, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE, chat_mini[i-1]);
+		char *msg = V_ChatWordWrap(0, boxw-charwidth-2, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE|V_MONOSPACE, chat_mini[i-1]);
 		for(size_t j = 0; msg[j]; j++) // iterate through msg
 		{
 			if (msg[j] == '\n') // get back down.
+			{
+				if (!prev_linereturn)
 				{
 					chatheight += charheight;
 					dx = 0;
 				}
+				prev_linereturn = true;
+			}
 			else if (msg[j] >= FONTSTART)
 			{
+				prev_linereturn = false;
+
 				dx += charwidth;
-				if (dx >= boxw)
+
+				if (dx >= boxw-charwidth-2)
 				{
 					dx = 0;
 					chatheight += charheight;
+					prev_linereturn = true;
 				}
 			}
 		}
@@ -1245,35 +1277,43 @@ static void HU_drawMiniChat(void)
 	}
 
 	y = chaty - (chatheight + charheight);
+	prev_linereturn = false;
 
 	for (size_t i = 0; i < chat_nummsg_min; i++) // iterate through our hot messages
 	{
 		INT32 timer = ((cv_chattime.value*TICRATE)-chat_timers[i]) - cv_chattime.value*TICRATE+9; // see below...
 		INT32 transflag = (timer >= 0 && timer <= 9) ? (timer*V_10TRANS) : 0; // you can make bad jokes out of this one.
-		char *msg = V_ChatWordWrap(chatx, boxw-charwidth, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE, chat_mini[i]); // get the current message, and word wrap it.
+		char *msg = V_ChatWordWrap(0, boxw-charwidth-2, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE|V_MONOSPACE, chat_mini[i]); // get the current message, and word wrap it.
 		UINT8 *colormap = NULL;
 
 		for(size_t j = 0; msg[j]; j++) // iterate through msg
 		{
 			if (msg[j] == '\n') // get back down.
+			{
+				if (!prev_linereturn)
 				{
 					dy += charheight;
 					dx = 0;
 				}
+				prev_linereturn = true;
+			}
 			else if (msg[j] & 0x80) // get colormap
 				colormap = V_GetStringColormap(((msg[j] & 0x7f) << V_CHARCOLORSHIFT) & V_CHARCOLORMASK);
 			else if (msg[j] >= FONTSTART)
 			{
+				prev_linereturn = false;
+
 				if (cv_chatbacktint.value) // on request of wolfy
 					V_DrawFillConsoleMap(x + dx + 2, y+dy, charwidth, charheight, 239|V_SNAPTOBOTTOM|V_SNAPTOLEFT);
 
-				V_DrawChatCharacter(x + dx + 2, y+dy, msg[j] |V_SNAPTOBOTTOM|V_SNAPTOLEFT|transflag, true, colormap);
-
+				V_DrawChatCharacter(x + dx + 2, y+dy, msg[j] |V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_MONOSPACE|transflag, true, colormap);
 				dx += charwidth;
-				if (dx >= boxw)
+
+				if (dx >= boxw-charwidth-2)
 				{
 					dx = 0;
 					dy += charheight;
+					prev_linereturn = true;
 				}
 			}
 		}
@@ -1298,6 +1338,7 @@ static void HU_drawChatLog(INT32 offset)
 	UINT32 i = 0;
 	INT32 chat_topy, chat_bottomy;
 	boolean atbottom = false;
+	boolean prev_linereturn = false;
 
 	// make sure that our scroll position isn't "illegal";
 	if (chat_scroll > chat_maxscroll)
@@ -1330,27 +1371,38 @@ static void HU_drawChatLog(INT32 offset)
 
 	for (i=0; i<chat_nummsg_log; i++) // iterate through our chatlog
 	{
-		char *msg = V_ChatWordWrap(chatx, boxw-charwidth, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE, chat_log[i]); // get the current message, and word wrap it.
+		char *msg = V_ChatWordWrap(0, boxw-charwidth-2, V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_ALLOWLOWERCASE|V_MONOSPACE, chat_log[i]); // get the current message, and word wrap it.
 		UINT8 *colormap = NULL;
 		for(size_t j = 0; msg[j]; j++) // iterate through msg
 		{
 			if (msg[j] == '\n') // get back down.
+			{
+				if (!prev_linereturn)
 				{
 					dy += charheight;
 					dx = 0;
 				}
+				prev_linereturn = true;
+			}
 			else if (msg[j] & 0x80) // get colormap
 				colormap = V_GetStringColormap(((msg[j] & 0x7f) << V_CHARCOLORSHIFT) & V_CHARCOLORMASK);
-			else if (msg[j] >= FONTSTART)
+			else
+			{
+				prev_linereturn = false;
+
+				if (msg[j] >= FONTSTART)
 				{
 					if ((y+dy+2 >= chat_topy) && (y+dy < (chat_bottomy)))
-					V_DrawChatCharacter(x + dx + 2, y+dy+2, msg[j] |V_SNAPTOBOTTOM|V_SNAPTOLEFT, true, colormap);
+						V_DrawChatCharacter(x + dx + 2, y+dy+2, msg[j] |V_SNAPTOBOTTOM|V_SNAPTOLEFT|V_MONOSPACE, true, colormap);
 
 					dx += charwidth;
+				}
+
 				if (dx >= boxw-charwidth-2 && i < chat_nummsg_log) // end of message shouldn't count, nor should invisible characters!!!!
 				{
 					dx = 0;
 					dy += charheight;
+					prev_linereturn = true;
 				}
 			}
 		}
@@ -1699,6 +1751,9 @@ static void HU_DrawDemoInfo(void)
 // Heads up displays drawer, call each frame
 //
 void HU_Drawer(void)
+{
+
+	if (LUA_HudEnabled(hud_chat))
 	{
 		// draw chat string plus cursor
 		if (chat_on)
@@ -1716,8 +1771,9 @@ void HU_Drawer(void)
 			if (!OLDCHAT && cv_consolechat.value < 2 && netgame) // Don't display minimized chat if you set the mode to Window (Hidden)
 				HU_drawMiniChat(); // draw messages in a cool fashion.
 		}
+	}
 
-	if (cechotimer)
+	if (cechotimer && LUA_HudEnabled(hud_cecho))
 		HU_DrawCEcho();
 
 	if (demoplayback && hu_showscores)
@@ -2010,13 +2066,13 @@ static void HU_Draw32TeamTabRankings(playersort_t *tab, INT32 whiteplayer)
 		greycheck = greycheckdef;
 		supercheck = supercheckdef;
 
-		if (tab[i].color == skincolor_redteam) //red
+		if (players[tab[i].num].ctfteam == 1) //red
 		{
 			redplayers++;
 			x = 14 + (BASEVIDWIDTH/2);
 			y = (redplayers * 9) + 20;
 		}
-		else if (tab[i].color == skincolor_blueteam) //blue
+		else if (players[tab[i].num].ctfteam == 2) //blue
 		{
 			blueplayers++;
 			x = 14;
@@ -2098,7 +2154,7 @@ void HU_DrawTeamTabRankings(playersort_t *tab, INT32 whiteplayer)
 		if (players[tab[i].num].spectator)
 			continue; //ignore them.
 
-		if (tab[i].color == skincolor_redteam) //red
+		if (players[tab[i].num].ctfteam == 1) //red
 		{
 			if (redplayers++ > 8)
 			{
@@ -2106,7 +2162,7 @@ void HU_DrawTeamTabRankings(playersort_t *tab, INT32 whiteplayer)
 				break; // don't make more loops than we need to.
 			}
 		}
-		else if (tab[i].color == skincolor_blueteam) //blue
+		else if (players[tab[i].num].ctfteam == 2) //blue
 		{
 			if (blueplayers++ > 8)
 			{
@@ -2137,14 +2193,14 @@ void HU_DrawTeamTabRankings(playersort_t *tab, INT32 whiteplayer)
 		if (players[tab[i].num].spectator)
 			continue; //ignore them.
 
-		if (tab[i].color == skincolor_redteam) //red
+		if (players[tab[i].num].ctfteam == 1) //red
 		{
 			if (redplayers++ > 8)
 				continue;
 			x = 32 + (BASEVIDWIDTH/2);
 			y = (redplayers * 16) + 16;
 		}
-		else if (tab[i].color == skincolor_blueteam) //blue
+		else if (players[tab[i].num].ctfteam == 2) //blue
 		{
 			if (blueplayers++ > 8)
 				continue;
@@ -2458,53 +2514,20 @@ static inline void HU_DrawSpectatorTicker(void)
 {
 	int i;
 	int length = 0, height = 174;
-	int totallength = 0, templength = 0;
+	int totallength = 0;
 
 	for (i = 0; i < MAXPLAYERS; i++)
 		if (playeringame[i] && players[i].spectator)
 			totallength += (signed)strlen(player_names[i]) * 8 + 16;
 
-	length -= (leveltime % (totallength + BASEVIDWIDTH));
-	length += BASEVIDWIDTH;
+	length -= (leveltime % (totallength + (vid.width / vid.dup)));
+	length += (vid.width / vid.dup);
 
 	for (i = 0; i < MAXPLAYERS; i++)
 		if (playeringame[i] && players[i].spectator)
 		{
-			char *pos;
-			char initial[MAXPLAYERNAME+1];
-			char current[MAXPLAYERNAME+1];
-
-			strcpy(initial, player_names[i]);
-			pos = initial;
-
-			if (length >= -((signed)strlen(player_names[i]) * 8 + 16) && length <= BASEVIDWIDTH)
-			{
-				if (length < 0)
-				{
-					UINT8 eatenchars = (UINT8)(abs(length) / 8 + 1);
-
-					if (eatenchars <= strlen(initial))
-					{
-						// Eat one letter off the left side,
-						// then compensate the drawing position.
-						pos += eatenchars;
-						strcpy(current, pos);
-						templength = length % 8 + 8;
-					}
-					else
-					{
-						strcpy(current, " ");
-						templength = length;
-					}
-				}
-				else
-				{
-					strcpy(current, initial);
-					templength = length;
-				}
-
-				V_DrawString(templength, height + 8, V_TRANSLUCENT|V_ALLOWLOWERCASE, current);
-			}
+			if (length >= -((signed)strlen(player_names[i]) * 8 + 16) && length <= (vid.width / vid.dup))
+				V_DrawString(length, height + 8, V_TRANSLUCENT|V_ALLOWLOWERCASE|V_SNAPTOLEFT, player_names[i]);
 
 			length += (signed)strlen(player_names[i]) * 8 + 16;
 		}

src/hu_stuff.h

@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1993-1996 by id Software, Inc.
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -79,6 +79,9 @@ void HU_AddChatText(const char *text, boolean playsound);
 // set true when entering a chat message
 extern boolean chat_on;
 
+extern UINT8 spam_tokens[MAXPLAYERS];
+extern tic_t spam_tics[MAXPLAYERS];
+
 extern patch_t *emeraldpics[3][8];
 extern patch_t *rflagico;
 extern patch_t *bflagico;

src/i_system.h

@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1993-1996 by id Software, Inc.
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
@@ -339,4 +339,12 @@ void I_SetMouseGrab(boolean grab);
 */
 const char *I_GetSysName(void);
 
+/** \brief Sets text input mode. When enabled, keyboard inputs will respect dead keys.
+ */
+void I_SetTextInputMode(boolean active);
+
+/** \brief Retrieves current text input mode.
+ */
+boolean I_GetTextInputMode(void);
+
 #endif

src/i_threads.h

@@ -9,20 +9,21 @@
 /// \file  i_threads.h
 /// \brief Multithreading abstraction
 
-#ifdef HAVE_THREADS
-
 #ifndef I_THREADS_H
 #define I_THREADS_H
 
+#include "doomtype.h"
+
 typedef void (*I_thread_fn)(void *userdata);
 
 typedef void * I_mutex;
 typedef void * I_cond;
 
+int       I_can_thread (void) FUNCWARNRV;
 void      I_start_threads (void);
 void      I_stop_threads  (void);
 
-void      I_spawn_thread (const char *name, I_thread_fn, void *userdata);
+int       I_spawn_thread (const char *name, I_thread_fn, void *userdata) FUNCWARNRV;
 
 /* check in your thread whether to return early */
 int       I_thread_is_stopped (void);
@@ -36,4 +37,3 @@ void      I_wake_one_cond   (I_cond *);
 void      I_wake_all_cond   (I_cond *);
 
 #endif/*I_THREADS_H*/
-#endif/*HAVE_THREADS*/

src/i_video.h

@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1993-1996 by id Software, Inc.
 // Copyright (C) 1998-2000 by DooM Legacy Team.
-// Copyright (C) 1999-2023 by Sonic Team Junior.
+// Copyright (C) 1999-2024 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.