Use a flags table for setMode now, implement resizable and borderless windows, and add resize event

Example setMode invocation: love.graphics.setMode(800, 600, {fullscreen = false, vsync = true, borderless = true})
t.screen.resizable and t.screen.borderless are available in love.conf
And love.resize(w, h) gets called if it exists on a resize event.
NOTE: love.handlers.resize(w, h) does the required setMode, but that does mean a visual reload

--HG--
branch : minor

src/modules/window/Window.h

@@ -33,6 +33,15 @@ namespace love
 namespace window
 {
 
+struct WindowFlags
+{
+	bool fullscreen; // = false
+	bool vsync; // = true
+	int fsaa; // = 0
+	bool resizable; // = false
+	bool borderless; // = false
+}; // WindowFlags
+
 class Window : public Module
 {
 public:
@@ -44,8 +53,8 @@ public:
 
 	virtual ~Window();
 
-	virtual bool setWindow(int width = 800, int height = 600, bool fullscreen = false, bool vsync = true, int fsaa = 0) = 0;
-	virtual void getWindow(int &width, int &height, bool &fullscreen, bool &vsync, int &fsaa) = 0;
+	virtual bool setWindow(int width, int height, WindowFlags *flags = 0) = 0;
+	virtual void getWindow(int &width, int &height, WindowFlags &flags) = 0;
 
 	virtual bool checkWindowSize(int width, int height, bool fullscreen) = 0;
 	virtual WindowSize **getFullscreenSizes(int &n) = 0;

src/modules/window/sdl/Window.cpp

@@ -60,8 +60,23 @@ Window::_currentMode::_currentMode()
 {
 }
 
-bool Window::setWindow(int width, int height, bool fullscreen, bool vsync, int fsaa)
+bool Window::setWindow(int width, int height, WindowFlags *flags)
 {
+	bool fullscreen = false;
+	bool vsync = true;
+	int fsaa = 0;
+	bool resizable = false;
+	bool borderless = false;
+
+	if (flags)
+	{
+		fullscreen = flags->fullscreen;
+		vsync = flags->vsync;
+		fsaa = flags->fsaa;
+		resizable = flags->resizable;
+		borderless = flags->borderless;
+	}
+
 	bool mouseVisible = getMouseVisible();
 
 	// We need to restart the subsystem for two reasons:
@@ -104,23 +119,30 @@ bool Window::setWindow(int width, int height, bool fullscreen, bool vsync, int f
 		SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, fsaa);
 	}
 
-	// Fullscreen?
-	Uint32 sdlflags = fullscreen ? (SDL_OPENGL | SDL_FULLSCREEN) : SDL_OPENGL;
+	Uint32 sdlflags = SDL_OPENGL;
+	// Flags
+	if (fullscreen)
+		sdlflags |= SDL_FULLSCREEN;
+	if (resizable)
+		sdlflags |= SDL_RESIZABLE;
+	if (borderless)
+		sdlflags |= SDL_NOFRAME;
 
 	// Have SDL set the video mode.
-	if (SDL_SetVideoMode(width, height, 32, sdlflags) == 0)
+	SDL_Surface *surface;
+	if ((surface = SDL_SetVideoMode(width, height, 32, sdlflags)) == 0)
 	{
 		bool failed = true;
 		if (fsaa > 0)
 		{
 			// FSAA might have failed, disable it and try again
 			SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0);
-			failed = SDL_SetVideoMode(width, height, 32, sdlflags) == 0;
+			failed = (surface = SDL_SetVideoMode(width, height, 32, sdlflags)) == 0;
 			if (failed)
 			{
 				// There might be no FSAA at all
 				SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0);
-				failed = SDL_SetVideoMode(width, height, 32, sdlflags) == 0;
+				failed = (surface = SDL_SetVideoMode(width, height, 32, sdlflags)) == 0;
 			}
 		}
 		if (failed)
@@ -165,17 +187,21 @@ bool Window::setWindow(int width, int height, bool fullscreen, bool vsync, int f
 	currentMode.fsaa = fsaa;
 	currentMode.fullscreen = fullscreen;
 	currentMode.vsync = (real_vsync != 0);
+	currentMode.resizable = ((surface->flags & SDL_RESIZABLE) != 0);
+	currentMode.borderless = ((surface->flags & SDL_NOFRAME) != 0);
 
 	return true;
 }
 
-void Window::getWindow(int &width, int &height, bool &fullscreen, bool &vsync, int &fsaa)
+void Window::getWindow(int &width, int &height, WindowFlags &flags)
 {
 	width = currentMode.width;
 	height = currentMode.height;
-	fullscreen = currentMode.fullscreen;
-	vsync = currentMode.vsync;
-	fsaa = currentMode.fsaa;
+	flags.fullscreen = currentMode.fullscreen;
+	flags.vsync = currentMode.vsync;
+	flags.fsaa = currentMode.fsaa;
+	flags.resizable = currentMode.resizable;
+	flags.borderless = currentMode.borderless;
 }
 
 bool Window::checkWindowSize(int width, int height, bool fullscreen)

src/modules/window/sdl/Window.h

@@ -37,8 +37,8 @@ public:
 	Window();
 	~Window();
 
-	bool setWindow(int width = 800, int height = 600, bool fullscreen = false, bool vsync = true, int fsaa = 0);
-	void getWindow(int &width, int &height, bool &fullscreen, bool &vsync, int &fsaa);
+	bool setWindow(int width, int height, WindowFlags *flags = 0);
+	void getWindow(int &width, int &height, WindowFlags &flags);
 
 	bool checkWindowSize(int width, int height, bool fullscreen);
 	WindowSize **getFullscreenSizes(int &n);
@@ -72,6 +72,8 @@ private:
 		bool fullscreen;
 		bool vsync;
 		int fsaa;
+		bool resizable;
+		bool borderless;
 	} currentMode;
 	bool created;
 	bool mouseVisible;