Mercurial > sdl-ios-xcode
view src/video/cocoa/SDL_cocoaopengl.h @ 2723:911db724ea24
Couriersud fixed bug #603
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.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 26 Aug 2008 02:47:26 +0000 |
parents | 420716272158 |
children | 99210400e8b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_cocoaopengl_h #define _SDL_cocoaopengl_h #if SDL_VIDEO_OPENGL_CGL struct SDL_GLDriverData { int initialized; }; /* OpenGL functions */ extern int Cocoa_GL_LoadLibrary(_THIS, const char *path); extern void *Cocoa_GL_GetProcAddress(_THIS, const char *proc); extern int Cocoa_GL_SetupWindow(_THIS, SDL_Window * window); extern void Cocoa_GL_CleanupWindow(_THIS, SDL_Window * window); extern SDL_GLContext Cocoa_GL_CreateContext(_THIS, SDL_Window * window); extern int Cocoa_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context); extern int Cocoa_GL_SetSwapInterval(_THIS, int interval); extern int Cocoa_GL_GetSwapInterval(_THIS); extern void Cocoa_GL_SwapWindow(_THIS, SDL_Window * window); extern void Cocoa_GL_DeleteContext(_THIS, SDL_GLContext context); #endif /* SDL_VIDEO_OPENGL_CGL */ #endif /* _SDL_cocoaopengl_h */ /* vi: set ts=4 sw=4 expandtab: */