Using the following sequence
SDL_Init(..:)
SDL_CreateWindow(..., SDL_WINDOW_OPENGL)
SDL_DestroyWindow
SDL_CreateWindow(..., SDL_WINDOW_OPENGL)
SDL will crash in X11_GL_GetVisual. This is due to the fact that
during SDL_DestroyWindow X11_GL_Shutdown was called because the last window
has been closed.
On the next call to SDL_CreateWindow the library is still loaded and only the
memory is reinitialized. Function pointers such as gl_data->glXChooseVisual
will not be reinitialized.
Consequently, SDL will crash due to a NULL pointer access.
The attached patch corrects the behaviour.
From: Couriersud
Subject: Updated DirectFB driver for SDL1.3
please find attached a patch for an updated directfb driver for SDL1.3.
It does now
- properly supported the new input api.
- send unicode text events
- support directfb windows
- support multiple screens
- support hardware YUV scaling for the first YUV texture created.
- support hardware scaling for textures.
- properly interpret streaming access
- support software opengl if one manages to install the mesa directfb
driver (broken/not broken in mesa svn)
Within bugzilla (http://bugzilla.libsdl.org/show_bug.cgi?id=603) there
is another patch which fixes a crash due to GL context creation.
Kind regards,
couriersud
Many-mouse and tablet support
by Szymon Wilczek, mentored by Ryan C. Gordon
Everything concerning the project is noted on the wiki:
http://wilku.ravenlord.ws/doku.php?id=start
http://bugzilla.libsdl.org/show_bug.cgi?id=589
I was going to add the current window to the OpenGL context info, but that
doesn't fix the case where you set the current context to NULL and then set
the current context to the same window it had before.
This also doesn't take into account changes to the window that might affect
the context, such as viewport changing or fullscreen/windowed mode changing.
Any ideas?
From: Christian Walther
Subject: SDL 1.3 Xcode projects
Here are my promised updates to the Xcode projects. They work as far
as I'm using them, but I have not tested them thoroughly, and there
may still be some cruft left. In particular, I haven't checked whether
the frameworks still work on older versions of Mac OS X (are we still
targeting 10.2?), and whether Altivec/SSE optimizations are properly
done. Of note: I incremented the framework version to B to enable SDL
1.2 and 1.3 to coexist in a single framework.
Let me know if you see any problems.
Greetings
Christian
working earlier this week.
I added some more trace code to SDL_x11events.c
In SDL_X11opengl.c I modified SDL_GL_GetSwapInterval() so that it returns a pretty good value even if you have the SGI swap extension instead of the MESA swap
extension. I just saved the value you set and return it too you.
is incorrect. The result is that an illegal access is being made in X_PumpEvents when it tries to look up the windows ID of the source of an event. Taking out that
call does not seem to have any effect on the testgl. But, I would be happy if someone else took a look at this problem and found a fix higher up the stack.
following event can reset done to 1 and prevent the program from terminating when told to. I fixed the while loop that handles events to check for the state of done
after handling each event. That could leave some events unhandled when the program exits, but it ensures that the program will exit.
