- make the sprite drawers respond to 'gl_enhanced_nightvision' and 'gl_enhanced_nv_stealth'

src/swrenderer/drawers/r_draw_pal.cpp

@@ -973,6 +973,8 @@ namespace swrenderer
 			float lumi = ((float)GPalette.BaseColors[colormap[fg]].r * 30.f + 
 				GPalette.BaseColors[colormap[fg]].g * 59.f +
 				GPalette.BaseColors[colormap[fg]].b * 11.f) / 25500.f;
+			lumi = pow(lumi, 0.5f);
+
 			float r = 255.f - lumi * 255.f;
 			float g = clamp(511.f - lumi * 511.f, 0.f, 255.f);
 			float b = 255.f - lumi * 255.f;
@@ -1024,6 +1026,8 @@ namespace swrenderer
 			float lumi = ((float)GPalette.BaseColors[colormap[fg]].r * 30.f + 
 				GPalette.BaseColors[colormap[fg]].g * 59.f +
 				GPalette.BaseColors[colormap[fg]].b * 11.f) / 25500.f;
+			lumi = pow(lumi, 0.5f);
+
 			float r = 255.f - lumi * 255.f;
 			float g = clamp(511.f - lumi * 511.f, 0.f, 255.f);
 			float b = 255.f - lumi * 255.f;
@@ -1091,16 +1095,19 @@ namespace swrenderer
 		const uint8_t *source = args.TexturePixels();
 		
 		uint8_t fg = args.SolidColor();
+		// lumi is a desaturated colour and goes between 0.0 and 1.0, this is intentional
+		float lumi = ((float)GPalette.BaseColors[colormap[fg]].r * 30.f + 
+			GPalette.BaseColors[colormap[fg]].g * 59.f +
+			GPalette.BaseColors[colormap[fg]].b * 11.f) / 25500.f;
+		lumi = pow(lumi, 0.5f);
+
+		float r = 255.f - lumi * 255.f;
+		float g = clamp(511.f - lumi * 511.f, 0.f, 255.f);
+		float b = 255.f - lumi * 255.f;
+		int destcolor = RGB256k.RGB[(int)r>>2][(int)g>>2][(int)b>>2];
 		do
 		{
-			// lumi is a desaturated colour and goes between 0.0 and 1.0, this is intentional
-			float lumi = ((float)GPalette.BaseColors[colormap[fg]].r * 30.f + 
-				GPalette.BaseColors[colormap[fg]].g * 59.f +
-				GPalette.BaseColors[colormap[fg]].b * 11.f) / 25500.f;
-			float r = 255.f - lumi * 255.f;
-			float g = clamp(511.f - lumi * 511.f, 0.f, 255.f);
-			float b = 255.f - lumi * 255.f;
-			*dest = RGB256k.RGB[(int)r>>2][(int)g>>2][(int)b>>2];
+			*dest = destcolor;
 
 			dest += pitch;
 			frac += fracstep;

src/swrenderer/drawers/r_draw_sprite32.h

@@ -332,6 +332,7 @@ namespace swrenderer
 				float lumi = ((float)fgcolor.r * 30.0f + 
 					fgcolor.g * 59.0f +
 					fgcolor.b * 11.0f) / 25500.0f;
+				lumi = pow(lumi, 0.5);
 
 				fgcolor.r = int(255.0f - lumi * 255.0f);
 				fgcolor.g = int(clamp(511.0f - lumi * 511.0f, 0.0f, 255.0f));

src/swrenderer/drawers/r_draw_sprite32_sse2.h

@@ -390,6 +390,8 @@ namespace swrenderer
 					float lumi = ((float)bgra_fgcolor[i].r * 30.0f + 
 						bgra_fgcolor[i].g * 59.0f +
 						bgra_fgcolor[i].b * 11.0f) / 25500.0f;
+					lumi = pow(lumi, 0.5f);
+					//lumi = _mm_cvtss_f32(_mm_sqrt_ss(_mm_set_ss(lumi)));
 
 					bgra_outcolor[i].r = int(255.0f - lumi * 255.0f);
 					bgra_outcolor[i].g = int(clamp(511.0f - lumi * 511.0f, 0.0f, 255.0f));
@@ -398,7 +400,7 @@ namespace swrenderer
 				}
 
 				__m128i outcolor = _mm_packs_epi32(_mm_loadu_si128((__m128i*)&bgra_outcolor[0]), _mm_loadu_si128((__m128i*)&bgra_outcolor[1]));
-				_mm_packus_epi16(outcolor, _mm_setzero_si128());
+				outcolor = _mm_packus_epi16(outcolor, _mm_setzero_si128());
 
 				return outcolor;
 			}

src/swrenderer/scene/r_light.cpp

@@ -43,6 +43,8 @@
 #include "swrenderer/viewport/r_viewport.h"
 
 EXTERN_CVAR(Bool, r_fullbrightignoresectorcolor)
+EXTERN_CVAR(Int, gl_enhanced_nv_stealth)
+EXTERN_CVAR(Bool, gl_enhanced_nightvision)
 
 namespace swrenderer
 {
@@ -62,9 +64,31 @@ namespace swrenderer
 		realfixedcolormap = nullptr;
 		fixedcolormap = nullptr;
 		fixedlightlev = -1;
+		doenhancednightvis = 0;
 
 		if (player != nullptr && camera == player->mo)
 		{
+			if (player->fixedlightlevel != -1)
+			{
+				auto torchtype = PClass::FindActor(NAME_PowerTorch);
+				auto litetype = PClass::FindActor(NAME_PowerLightAmp);
+				for (AInventory * in = player->mo->Inventory; in; in = in->Inventory)
+				{
+					// Need special handling for light amplifiers 
+					if (in->IsKindOf(torchtype))
+					{
+						// these can become more sophisticated later, right now i really am only
+						// worried about the basic implementation
+						if (gl_enhanced_nv_stealth > 1) doenhancednightvis = 2;
+					}
+					else if (in->IsKindOf(litetype))
+					{
+						if (gl_enhanced_nightvision) doenhancednightvis = 1;
+						if (gl_enhanced_nv_stealth > 0) doenhancednightvis |= 2;
+					}
+				}
+			}
+			
 			if (player->fixedcolormap >= 0 && player->fixedcolormap < (int)SpecialColormaps.Size())
 			{
 				realfixedcolormap = &SpecialColormaps[player->fixedcolormap];

src/swrenderer/scene/r_light.h

@@ -60,6 +60,7 @@ namespace swrenderer
 		static CameraLight *Instance();
 
 		int FixedLightLevel() const { return fixedlightlev; }
+		int DoEnhancedNightVis() const { return doenhancednightvis; }
 		FSWColormap *FixedColormap() const { return fixedcolormap; }
 		FSpecialColormap *ShaderColormap() const { return realfixedcolormap; }
 
@@ -70,6 +71,7 @@ namespace swrenderer
 		
 	private:
 		int fixedlightlev = 0;
+		int doenhancednightvis = 0;
 		FSWColormap *fixedcolormap = nullptr;
 		FSpecialColormap *realfixedcolormap = nullptr;
 	};

src/swrenderer/viewport/r_spritedrawer.cpp

@@ -244,6 +244,46 @@ namespace swrenderer
 
 	bool SpriteDrawerArgs::SetBlendFunc(int op, fixed_t fglevel, fixed_t bglevel, int flags)
 	{
+		CameraLight *cameraLight = CameraLight::Instance();
+		if (cameraLight->FixedLightLevel() > 0)
+		{
+			if (!!(cameraLight->DoEnhancedNightVis() & 1))
+			{
+				if (flags & STYLEF_ColorIsFixed)
+				{
+					colfunc = &SWPixelFormatDrawers::FillNiteVisColumn;
+				}
+				else if (TranslationMap() == nullptr)
+				{
+					colfunc = &SWPixelFormatDrawers::DrawNiteVisColumn;
+				}
+				else
+				{
+					colfunc = &SWPixelFormatDrawers::DrawTranslatedNiteVisColumn;
+					drawer_needs_pal_input = true;
+				}
+				return true;
+			}
+			else if (!!(cameraLight->DoEnhancedNightVis() & 2))
+			{
+				// just render things without translucency (for now) if stealth vision is enabled
+				if (flags & STYLEF_ColorIsFixed)
+				{
+					colfunc = &SWPixelFormatDrawers::FillColumn;
+				}
+				else if (TranslationMap() == nullptr)
+				{
+					colfunc = &SWPixelFormatDrawers::DrawColumn;
+				}
+				else
+				{
+					colfunc = &SWPixelFormatDrawers::DrawTranslatedColumn;
+					drawer_needs_pal_input = true;
+				}
+				return true;
+			}
+		}
+
 		// r_drawtrans is a seriously bad thing to turn off. I wonder if I should
 		// just remove it completely.
 		if (!r_drawtrans || (op == STYLEOP_Add && fglevel == FRACUNIT && bglevel == 0 && !(flags & STYLEF_InvertSource)))