From 69d8af71d6882e801496fcd7ed971081c0b720d8 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sun, 8 Dec 2019 21:29:29 +0800
Subject: *misc

---
 src/main.c | 40 +++++++++++++++++++++++++++++-----------
 1 file changed, 29 insertions(+), 11 deletions(-)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 1dd4663..176c2e6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,8 +8,8 @@
 
 SDL_Surface* suf;
 
-#define SCREEN_WIDTH 600 /*800*/
-#define SCREEN_HEIGHT 500 /*600*/
+#define SCREEN_WIDTH 600/*800*/
+#define SCREEN_HEIGHT 480/*600*/
 
 typedef void(*F)(void*);
 F onload;
@@ -30,7 +30,7 @@ SETEXAMPLEF(onupdate, i)
 
 int main(int argc, char* argv[])
 {
-	if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
+	if (SDL_Init(SDL_INIT_EVENTS | SDL_INIT_TIMER | SDL_INIT_VIDEO) < 0)
 		return 1;
 	SDL_Window* wnd = SDL_CreateWindow("Soft Shade Room", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
 	SDL_Event e;
@@ -40,18 +40,24 @@ int main(int argc, char* argv[])
 	ssr_assert(suf->format->Rshift == 16);
 	ssr_assert(suf->format->Gshift == 8);
 	ssr_assert(suf->format->Bshift == 0);
+
 	/* init ssr */
 	ssr_Config config = {
-		SCREEN_WIDTH, SCREEN_HEIGHT,/* screen size */
-		0, /* double buffer */
-		suf->pixels /* screen buffer */ 
+		SCREEN_WIDTH, SCREEN_HEIGHT,
+		0,
+		suf->pixels
 	};
 	ssr_init(&config);
+
 	SETEXAMPLE(EXAMPLECUR);
+
 	onload(0);
+
 	/* main loop */
-	uint previous = SDL_GetTicks();
+	uint prev = SDL_GetTicks();
 	uint dt = 0;
+	uint frame_count = 0;
+	uint time_stamp = 0;
 	while (1) {
 		while (SDL_PollEvent(&e)) {
 			if (e.type == SDL_QUIT) {
@@ -60,15 +66,27 @@ int main(int argc, char* argv[])
 				onevent(&e);
 			}
 		}
-		dt = SDL_GetTicks() - previous;
-		previous = dt + previous;
+
+		dt = SDL_GetTicks() - prev;
+		prev += dt;
+		time_stamp += dt;
+		++frame_count;
+		if (time_stamp >= 1000) {
+			printf("%3d fps\n", frame_count);
+			time_stamp -= 1000;
+			frame_count = 0;
+		}
+
 		onupdate(&dt);
 		ondraw(0);
 		ssr_present();
 		SDL_UpdateWindowSurface(wnd);
-		Sleep(10); /*100fps limit*/
+		
+		Sleep(1); /*reduce cpu usage*/
 	}
-	quit:
+
+quit:
 	SDL_Quit();
+
 	return 0;
 }
-- 
cgit v1.1-26-g67d0