devmode render: display skybox portal, visplane and drawseg counts on HUD

- Skybox portal count moved from console print to HUD
- Displays visplane count and drawseg count

src/r_main.c

@@ -126,6 +126,8 @@ int ps_numsprites = 0;
 int ps_numdrawnodes = 0;
 int ps_numpolyobjects = 0;
 
+struct RenderStats g_renderstats;
+
 static CV_PossibleValue_t drawdist_cons_t[] = {
 	/*{256, "256"},*/	{512, "512"},	{768, "768"},
 	{1024, "1024"},	{1536, "1536"},	{2048, "2048"},
@@ -1525,6 +1527,8 @@ void R_RenderPlayerView(void)
 	framecount++;
 	validcount++;
 
+	memset(&g_renderstats, 0, sizeof g_renderstats);
+
 	// Clear buffers.
 	R_ClearPlanes();
 	if (viewmorph[viewssnum].use)

src/r_main.h

@@ -106,6 +106,15 @@ extern int ps_numsprites;
 extern int ps_numdrawnodes;
 extern int ps_numpolyobjects;
 
+struct RenderStats
+{
+	size_t visplanes;
+	size_t drawsegs;
+	size_t skybox_portals;
+};
+
+extern struct RenderStats g_renderstats;
+
 //
 // REFRESH - the actual rendering functions.
 //

src/r_plane.c

@@ -341,6 +341,9 @@ static visplane_t *new_visplane(unsigned hash)
 	}
 	check->next = visplanes[hash];
 	visplanes[hash] = check;
+
+	g_renderstats.visplanes++;
+
 	return check;
 }
 

src/r_portal.c

@@ -312,5 +312,5 @@ void Portal_AddSkyboxPortals (const player_t *player)
 		}
 	}
 
-	CONS_Debug(DBG_RENDER, "Skybox portals: %d\n", count);
+	g_renderstats.skybox_portals = count;
 }

src/r_segs.c

@@ -3024,4 +3024,6 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 		ds_p->bsilheight = twosidedmidtexture ? INT32_MAX: INT32_MIN;
 	}
 	ds_p++;
+
+	g_renderstats.drawsegs++;
 }

src/st_stuff.c

@@ -434,6 +434,18 @@ static void ST_drawMusicDebug(INT32 *height)
 	}
 }
 
+static void ST_drawRenderDebug(INT32 *height)
+{
+	const struct RenderStats *i = &g_renderstats;
+
+	ST_pushDebugString(height, va("     Visplanes: %4s", sizeu1(i->visplanes)));
+	ST_pushDebugString(height, va("      Drawsegs: %4s", sizeu1(i->drawsegs)));
+
+	ST_pushRow(height);
+
+	ST_pushDebugString(height, va("Skybox Portals: %4s", sizeu1(i->skybox_portals)));
+}
+
 void ST_drawDebugInfo(void)
 {
 	INT32 height = 192;
@@ -516,6 +528,11 @@ void ST_drawDebugInfo(void)
 		ST_drawMusicDebug(&height);
 	}
 
+	if (cht_debug & DBG_RENDER)
+	{
+		ST_drawRenderDebug(&height);
+	}
+
 	if (cht_debug & DBG_MEMORY)
 		V_DrawRightAlignedString(320, height,     V_MONOSPACE, va("Heap used: %7sKB", sizeu1(Z_TagsUsage(0, INT32_MAX)>>10)));
 }