Sdl1.3 cocoawindow toggle to fullscreen OpenGL context loss

SDL Development
1

I used it like this:

SDL_DestroyWindow;

SDL_CreateWindow;

SDL_GL_MakeCurrent;

It works well in Windows, but it can’t work in mac os. As sdl 1.2, the opengl context lost and mouse event lost.
Could someone can fix it?

2

I’m surprised you’re able to keep an OpenGL context across a
windowed/fullscreen switch without having to reload your textures and
so forth. In general it’s my understanding that you can’t.On Thu, Oct 22, 2009 at 8:58 PM, vickylh wrote:

I used it like this:

SDL_DestroyWindow;

SDL_CreateWindow;

SDL_GL_MakeCurrent;

It works well in Windows, but it can’t work in mac os. As sdl 1.2, the
opengl context lost and mouse event lost.
Could someone can fix it?

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-Sam Lantinga, Founder and President, Galaxy Gameworks LLC

3

Thank you for your reply!
Yes, i do it in Windows.But it can’t work in SnowLeopard.
If you will,i can send the Exe to you.
Follow is my code:
void _InitSystem()
{
if ( SDL_WasInit(SDL_INIT_EVERYTHING) != 0 ) {
fprintf( stderr, “SDL is already running.\n” );
return ;

}

if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) 
{
	/* Failed, exit. */
	fprintf( stderr, "Video initialization failed: %s\n",
		SDL_GetError( ) );
	return ;		

}
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;


/* Select first display */
int status=SDL_SelectVideoDisplay(0);
if (status<0)
{
	fprintf(stderr, "Can't attach to first display: %s\n", SDL_GetError());
	exit(-1);
}

if (m_eDisplayMode & MODE_ARGB )
{
	SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
	SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
	SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
	SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );
}
if (m_eDisplayMode & MODE_DOUBLE_BUFFER  )
{
	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
}
if (m_eDisplayMode & MODE_SINGLE_BUFFER  )
{
	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 0 );
}
if (m_eDisplayMode & MODE_DEPTH_BUFFER  )
{
	SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
	glEnable(GL_DEPTH_TEST);
}

SDL_DisplayMode fullscreen_mode;
fullscreen_mode.format = SDL_PIXELFORMAT_RGB888;
fullscreen_mode.w = m_nScreenWidth;
fullscreen_mode.h = m_nScreenHeight;

if (SDL_SetFullscreenDisplayMode(&fullscreen_mode) < 0) 
{
	fprintf(stderr, "Can't switch to fullscreen display mode: %s\n",
		SDL_GetError());
	return ;
}

_CreateWindow();

m_Context = SDL_GL_CreateContext(m_nWindowID);
if (m_Context == NULL)
{
	fprintf(stderr, "Can't create OpenGL context: %s\n", SDL_GetError());		
}
/*
	Something about Opengl...... 
*/

}
void _CreateWindow()
{
int flags = 0;

flags = SDL_WINDOW_OPENGL;
flags |= SDL_WINDOW_SHOWN | SDL_WINDOW_INPUT_FOCUS | SDL_WINDOW_MOUSE_FOCUS |SDL_WINDOW_RESIZABLE;


if (m_bNoFrame)
{
	flags |= SDL_WINDOW_BORDERLESS;
}
if (m_bResizable)
{
	flags |= SDL_WINDOW_RESIZABLE;
}	
if (!m_bWindow)
{
	flags |= SDL_WINDOW_FULLSCREEN;
}
m_nWindowID = SDL_CreateWindow(m_szWinTitle, m_nWindowPositionX, 
	m_nWindowPositionY, m_nScreenWidth, m_nScreenHeight, flags);

}
When i switch from window to fullscreen,i use it like this:
SDL_DestroyWindow(m_nWindowID);

					_CreateWindow();

					SDL_GL_MakeCurrent(m_nWindowID, m_Context);

					SDL_SetWindowPosition(m_nWindowID, m_nWindowPositionX, m_nWindowPositionY);

You can try it in Windows,and the sdl version is 1.3