Fix TU19 Lighting Optimisation

Minecraft.Client/Minimap.cpp

@@ -79,7 +79,7 @@ void Minimap::reloadColours()
 			int b = ((color) & 0xff) * br / 255;
 
 			// 4J - changed BYTE order to save having to reorder later
-#if ( defined _DURANGO || defined _WIN64 || __PSVITA__ )
+#if ( defined _DURANGO || defined _WINDOWS64 || __PSVITA__ )
 			LUT[i] =  255 << 24 | b << 16 | g << 8 | r;
 #elif defined _XBOX
 			LUT[i] =  255 << 24 | r << 16 | g << 8 | b;

Minecraft.Client/Tesselator.cpp

@@ -944,7 +944,7 @@ void Tesselator::vertex(float x, float y, float z)
 		pShortData[5] = (static_cast<int>(v * 8192.0f)&0xffff);
 		int16_t u2 = ((int16_t*)&_tex2)[0];
 		int16_t v2 = ((int16_t*)&_tex2)[1];
-#if defined _XBOX_ONE || defined __ORBIS__
+#if defined _XBOX_ONE || defined __ORBIS__ || defined _WINDOWS64
 		// Optimisation - pack the second UVs into a single short (they could actually go in a BYTE), which frees up a short to store the x offset for this chunk in the vertex itself.
 		// This means that when rendering chunks, we don't need to update the vertex constants that specify the location for a chunk, when only the x offset has changed.
 		pShortData[6] = ( u2 << 8 ) | v2;