From bfe96dd587b1133220e24f123f500379db1bef8b Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Thu, 23 Feb 2023 17:04:01 -0500
Subject: demo: Exclude delay time from benchmark

---
(limited to 'src/demo.c')

diff --git a/src/demo.c b/src/demo.c
index 24ebfc5..6ee46b0 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -27,6 +27,7 @@
 
 #define DEMO()                                                                 \
 	do {                                                                   \
+		start = SDL_GetTicks();                                        \
 		vp->x = x + map->tilewidth / 2 - vp->w / 2;                    \
 		vp->y = y + map->tileheight / 2 - vp->h / 2;                   \
 		/*                                                             \
@@ -75,8 +76,10 @@
 		}                                                              \
 		render_area_to_viewport(a, vp);                                \
 		SDL_Flip(vp->screen);                                          \
-		SDL_Delay(10);                                                 \
 		++i;                                                           \
+		end = SDL_GetTicks();                                          \
+		total += end - start;                                          \
+		SDL_Delay(10);                                                 \
 	} while (0)
 
 void
@@ -116,7 +119,7 @@ demo(void)
 
 	/* Demo */
 	{
-		Uint32 start, end;
+		Uint32 total, start, end;
 		int i, i_max, t_max;
 		int x, y;
 		SDL_Palette *pal_start, *pal_end;
@@ -127,7 +130,7 @@ demo(void)
 
 		i = 0;
 		i_max = 1440;
-		start = SDL_GetTicks();
+		total = 0;
 		x =  9 * map->tilewidth ;
 		y = 58 * map->tileheight;
 		for (; y > 50 * map->tileheight; y -= 1) DEMO(); /* Up */
@@ -145,7 +148,6 @@ demo(void)
 		for (; y >  5 * map->tileheight; y -= 1) DEMO(); /* Up */
 		for (; x < 17 * map->tilewidth ; x += 1) DEMO(); /* Right */
 		for (; y >  1 * map->tileheight; y -= 1) DEMO(); /* Up */
-		end = SDL_GetTicks();
-		debug("Rendered %d frames in %d milliseconds", i, end - start);
+		debug("Rendered %d frames in %d milliseconds", i, total);
 	}
 }
--
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