| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #if SDL_VIDEO_OPENGL_GLX |
| 25 | #include <GL/glx.h> |
| 26 | #include "SDL_loadso.h" |
| 27 | #endif |
| 28 | |
| 29 | #include "../SDL_sysvideo.h" |
| 30 | |
| 31 | struct SDL_PrivateGLData { |
| 32 | int gl_active; /* to stop switching drivers while we have a valid context */ |
| 33 | |
| 34 | #if SDL_VIDEO_OPENGL_GLX |
| 35 | GLXContext glx_context; /* Current GL context */ |
| 36 | XVisualInfo* glx_visualinfo; /* XVisualInfo* returned by glXChooseVisual */ |
| 37 | |
| 38 | void * (*glXGetProcAddress)(const GLubyte *procName); |
| 39 | |
| 40 | XVisualInfo* (*glXChooseVisual) |
| 41 | ( Display* dpy, |
| 42 | int screen, |
| 43 | int* attribList ); |
| 44 | |
| 45 | GLXContext (*glXCreateContext) |
| 46 | ( Display* dpy, |
| 47 | XVisualInfo* vis, |
| 48 | GLXContext shareList, |
| 49 | Bool direct ); |
| 50 | |
| 51 | void (*glXDestroyContext) |
| 52 | ( Display* dpy, |
| 53 | GLXContext ctx ); |
| 54 | |
| 55 | Bool (*glXMakeCurrent) |
| 56 | ( Display* dpy, |
| 57 | GLXDrawable drawable, |
| 58 | GLXContext ctx ); |
| 59 | |
| 60 | void (*glXSwapBuffers) |
| 61 | ( Display* dpy, |
| 62 | GLXDrawable drawable ); |
| 63 | |
| 64 | int (*glXGetConfig) |
| 65 | ( Display* dpy, |
| 66 | XVisualInfo* visual_info, |
| 67 | int attrib, |
| 68 | int* value ); |
| 69 | |
| 70 | const char *(*glXQueryExtensionsString) |
| 71 | ( Display* dpy, |
| 72 | int screen ); |
| 73 | |
| 74 | int (*glXSwapIntervalSGI) ( int interval ); |
| 75 | GLint (*glXSwapIntervalMESA) ( unsigned interval ); |
| 76 | int swap_interval; |
| 77 | #endif /* SDL_VIDEO_OPENGL_GLX */ |
| 78 | }; |
| 79 | |
| 80 | /* Old variable names */ |
| 81 | #define gl_active (this->gl_data->gl_active) |
| 82 | #define glx_context (this->gl_data->glx_context) |
| 83 | #define glx_visualinfo (this->gl_data->glx_visualinfo) |
| 84 | |
| 85 | /* OpenGL functions */ |
| 86 | extern XVisualInfo *X11_GL_GetVisual(_THIS); |
| 87 | extern int X11_GL_CreateWindow(_THIS, int w, int h); |
| 88 | extern int X11_GL_CreateContext(_THIS); |
| 89 | extern void X11_GL_Shutdown(_THIS); |
| 90 | #if SDL_VIDEO_OPENGL_GLX |
| 91 | extern int X11_GL_MakeCurrent(_THIS); |
| 92 | extern int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value); |
| 93 | extern void X11_GL_SwapBuffers(_THIS); |
| 94 | extern int X11_GL_LoadLibrary(_THIS, const char* path); |
| 95 | extern void *X11_GL_GetProcAddress(_THIS, const char* proc); |
| 96 | #endif |
| 97 | extern void X11_GL_UnloadLibrary(_THIS); |
| 98 | |