- More rgb555 reimplements.

src/r_draw_pal.cpp

@@ -527,6 +527,9 @@ namespace swrenderer
 		int bits = _fracbits;
 		int pitch = _pitch;
 
+		uint32_t *fg2rgb = _srcblend;
+		uint32_t *bg2rgb = _destblend;
+
 		count = thread->count_for_thread(_dest_y, count);
 		if (count <= 0)
 			return;
@@ -536,6 +539,28 @@ namespace swrenderer
 		fracstep *= thread->num_cores;
 		pitch *= thread->num_cores;
 
+		if (!r_blendmode)
+		{
+			do
+			{
+				uint8_t pix = source[frac >> bits];
+				if (pix != 0)
+				{
+					uint32_t a = (fg2rgb[colormap[pix]] | 0x40100400) - bg2rgb[*dest];
+					uint32_t b = a;
+
+					b &= 0x40100400;
+					b = b - (b >> 5);
+					a &= b;
+					a |= 0x01f07c1f;
+					*dest = RGB32k.All[a & (a >> 15)];
+				}
+				frac += fracstep;
+				dest += pitch;
+			} while (--count);
+		}
+		else
+		{
 			do
 			{
 				uint8_t pix = source[frac >> bits];
@@ -550,6 +575,7 @@ namespace swrenderer
 				dest += pitch;
 			} while (--count);
 		}
+	}
 
 	void DrawWallSubClamp4PalCommand::Execute(DrawerThread *thread)
 	{
@@ -557,6 +583,9 @@ namespace swrenderer
 		int count = _count;
 		int bits = _fracbits;
 
+		uint32_t *fg2rgb = _srcblend;
+		uint32_t *bg2rgb = _destblend;
+
 		uint32_t dc_wall_texturefrac[4] = { _texturefrac[0], _texturefrac[1], _texturefrac[2], _texturefrac[3] };
 		uint32_t dc_wall_iscale[4] = { _iscale[0], _iscale[1], _iscale[2], _iscale[3] };
 
@@ -574,6 +603,31 @@ namespace swrenderer
 		}
 		pitch *= thread->num_cores;
 
+		if (!r_blendmode)
+		{
+			do
+			{
+				for (int i = 0; i < 4; ++i)
+				{
+					uint8_t pix = _source[i][dc_wall_texturefrac[i] >> bits];
+					if (pix != 0)
+					{
+						uint32_t a = (fg2rgb[_colormap[i][pix]] | 0x40100400) - bg2rgb[dest[i]];
+						uint32_t b = a;
+
+						b &= 0x40100400;
+						b = b - (b >> 5);
+						a &= b;
+						a |= 0x01f07c1f;
+						dest[i] = RGB32k.All[a & (a >> 15)];
+					}
+					dc_wall_texturefrac[i] += dc_wall_iscale[i];
+				}
+				dest += pitch;
+			} while (--count);
+		}
+		else
+		{
 			do
 			{
 				for (int i = 0; i < 4; ++i)
@@ -591,6 +645,7 @@ namespace swrenderer
 				dest += pitch;
 			} while (--count);
 		}
+	}
 
 	void DrawWallRevSubClamp1PalCommand::Execute(DrawerThread *thread)
 	{