From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Sat, 20 Oct 2012 13:29:09 +0000 (+0200)
Subject: introduced a small delay after flip if the screen is not a hardware surface
X-Git-Url: http://git.localhorst.tv/?a=commitdiff_plain;h=3a86cc937e9fce68384efc08edb6d6ba101d12eb;p=l2e.git

introduced a small delay after flip if the screen is not a hardware surface
---

diff --git a/src/sdl/InitScreen.cpp b/src/sdl/InitScreen.cpp
index 76030b1..13fb6b6 100644
--- a/src/sdl/InitScreen.cpp
+++ b/src/sdl/InitScreen.cpp
@@ -27,6 +27,7 @@ InitScreen::~InitScreen(void) {
 
 }
 
+
 SDL_Surface *InitScreen::Resize(int width, int height) {
 	SDL_Surface *newScreen(SDL_SetVideoMode(width, height, bpp, flags));
 	if (!newScreen) {
@@ -35,4 +36,12 @@ SDL_Surface *InitScreen::Resize(int width, int height) {
 	return screen = newScreen;
 }
 
+void InitScreen::Flip(void) {
+	SDL_Flip(screen);
+	if (!(screen->flags & SDL_HWSURFACE)) {
+		// probably got no vsync, so suspend execution for a while
+		SDL_Delay(1);
+	}
+}
+
 }
diff --git a/src/sdl/InitScreen.h b/src/sdl/InitScreen.h
index 5455a17..dd5e245 100644
--- a/src/sdl/InitScreen.h
+++ b/src/sdl/InitScreen.h
@@ -25,7 +25,7 @@ public:
 	SDL_Surface *Screen(void) { return screen; };
 	const SDL_Surface *Screen(void) const { return screen; };
 
-	void Flip(void) { SDL_Flip(screen); };
+	void Flip(void);
 	SDL_Surface *Resize(int width, int height);
 
 private: