Move V-DrawCustomFadeScreen to D_Display

TODO: This is steenky.

Essentially immediately tint the geometry and players the latest possible place it is safe to do so, with the magic of the software-exclusive fade.
This would ideally be handled with a shader so that GL and any future hwr2-native renderer can get in on the action too.

src/d_main.c

@@ -580,6 +580,19 @@ static void D_Display(void)
 			// rhi: display the software framebuffer to the screen
 			if (rendermode == render_soft)
 			{
+				// TODO: THIS SHOULD IDEALLY BE IN REGULAR HUD CODE !!
+				// (st_stuff.c ST_Drawer, also duplicated in k_podium.c)
+				// Unfortunately this is the latest place we can do it
+				// If we could immediately tint the GPU data a lot
+				// of problems could be solved (including GL support)
+				if (gamestate != GS_TITLESCREEN
+				&& G_GamestateUsesLevel() == true
+				&& timeinmap < 16)
+				{
+					// Level fade-in
+					V_DrawCustomFadeScreen(((levelfadecol == 0) ? "FADEMAP1" : "FADEMAP0"), 31-(timeinmap*2));
+				}
+
 				VID_DisplaySoftwareScreen();
 			}
 

src/k_podium.c

@@ -601,11 +601,12 @@ void K_CeremonyDrawer(void)
 		}
 	}
 
-	if (timeinmap < 16)
+	// See d_main.c and V_DrawCustomFadeScreen for the hacks that prevents this being here
+	/*if (timeinmap < 16)
 	{
 		// Level fade-in
 		V_DrawCustomFadeScreen(((levelfadecol == 0) ? "FADEMAP1" : "FADEMAP0"), 31-(timeinmap*2));
-	}
+	}*/
 
 	if (podiumData.state == PODIUM_STATES)
 	{

src/st_stuff.c

@@ -1491,9 +1491,12 @@ void ST_Drawer(void)
 			ST_MayonakaStatic();
 	}
 
-	// Draw a fade on level opening
+	// See d_main.c and V_DrawCustomFadeScreen for the hacks that prevents this being here
-	if (timeinmap < 16)
+	/*if (timeinmap < 16)
-		V_DrawCustomFadeScreen(((levelfadecol == 0) ? "FADEMAP1" : "FADEMAP0"), 31-(timeinmap*2)); // Then gradually fade out from there
+	{
+		// Level fade-in
+		V_DrawCustomFadeScreen(((levelfadecol == 0) ? "FADEMAP1" : "FADEMAP0"), 31-(timeinmap*2));
+	}*/
 
 	if (stagetitle)
 		ST_drawTitleCard();