Rebuild the window with the new style on older versions of Mac OS X.

Also fixed problem where Cocoa would move the windows in response to the fullscreen mode change.

Tracking rectangles had some problems, it's easier to track things directly.  (fixes bug 1149, 1147, 1146)

 Matthias      2011-02-23 09:37:51 PST

Please view the attached source file. Using this minimal program (as attached),
it creates an OpenGL 2.0 context with a cleared color buffer. If I set the
OpenGL version to 3.2, the function SDL_GL_CreateContext fails (or more
specifically, glXMakeCurrent fails) with an X11 BadMatch error:


X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  128 (GLX)
  Minor opcode of failed request:  5 (X_GLXMakeCurrent)
  Serial number of failed request:  153
  Current serial number in output stream:  153


Also note that if I do not specify the alpha buffer size, the program works for
OpenGL 2.0 and OpenGL 3.2.

After some further analysis, I believe I have found the problem. The specific
issue is in:

SDL_x11opengl.c::X11_GL_CreateContext.

Note that for OpenGL 3.2 contexts, the GLXFBConfig to use is chosen as the best
match from glXChooseFBConfig. However, opengl attributes originally set with
SDL_GL_SetAttribute are not mapped to GLX attributes and then passed to the
glXChooseFBConfig function. According to the GLX 1.4 specification, if the
attributes are not specified, the function falls back to defaults (which, in
this particular case, prefer alpha channel size == 0).

For testing purposes, I modified the call to glXChooseFBConfig to look
something like this:


int glxAttribs[] =
{
 GLX_RED_SIZE,8,
 GLX_GREEN_SIZE,8,
 GLX_BLUE_SIZE,8,
 GLX_ALPHA_SIZE,8,
 None
};

if (!glXChooseFBConfig ||
 !(framebuffer_config = glXChooseFBConfig(display, DefaultScreen(display),
glxAttribs, &fbcount)))
{
 ...
}


The best match GLXFBConfig then supports 8 bit alpha channel. The program then
works as intended.


Hope this helps!

Don't automatically send minimized and maximized events, it's up to the windowing system to decide what to do with them.

Added documentation for why we need an SDLView

Fixed the responder chain for event handling, the listener fully handles mouse events - even in fullscreen mode.
The only reason we need a custom view is to handle right mouse down.

Implemented mouse grabbing, although it's kind of clunky right now.  I'll be adding a relative mode that will be smoother soon.