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src/video/x11/SDL_x11gl_c.h
author Sam Lantinga <slouken@lokigames.com>
Sat, 14 Jul 2001 19:11:26 +0000
changeset 110 7edee9f0f2cc
parent 0 74212992fb08
child 252 e8157fcb3114
permissions -rw-r--r--
SDL GL dynamic loading fix for OpenBSD 
     1 /*

     2     SDL - Simple DirectMedia Layer

     3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga

     4 

     5     This library is free software; you can redistribute it and/or

     6     modify it under the terms of the GNU Library General Public

     7     License as published by the Free Software Foundation; either

     8     version 2 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     Library General Public License for more details.

    14 

    15     You should have received a copy of the GNU Library General Public

    16     License along with this library; if not, write to the Free

    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    18 

    19     Sam Lantinga

    20     slouken@devolution.com

    21 */

    22 

    23 #ifdef SAVE_RCSID

    24 static char rcsid =

    25  "@(#) $Id$";

    26 #endif

    27 

    28 #ifdef HAVE_OPENGL

    29 #include <GL/glx.h>

    30 #include <dlfcn.h>

    31 #if defined(__OpenBSD__) && !defined(__ELF__)

    32 #define dlsym(x,y) dlsym(x, "_" y)

    33 #endif

    34 #endif

    35 #include "SDL_sysvideo.h"

    36 

    37 struct SDL_PrivateGLData {

    38     int gl_active; /* to stop switching drivers while we have a valid context */

    39 

    40 #ifdef HAVE_OPENGL

    41     GLXContext glx_context;	/* Current GL context */

    42     XVisualInfo* glx_visualinfo; /* XVisualInfo* returned by glXChooseVisual */

    43 

    44     void * (*glXGetProcAddress)(const GLubyte *procName);

    45 

    46     XVisualInfo* (*glXChooseVisual)

    47 		( Display*		dpy,

    48 		  int			screen,

    49 		  int*		attribList );

    50 

    51     GLXContext (*glXCreateContext)

    52 		( Display*		dpy,

    53 		  XVisualInfo*	vis,

    54 		  GLXContext		shareList,

    55 		  Bool		direct );

    56 

    57     void (*glXDestroyContext)

    58 		( Display* 		dpy,

    59 		  GLXContext		ctx );

    60 

    61     Bool (*glXMakeCurrent)

    62 		( Display*		dpy,

    63 		  GLXDrawable		drawable,

    64 		  GLXContext		ctx );

    65 

    66     void (*glXSwapBuffers)

    67 		( Display*		dpy,

    68 		  GLXDrawable		drawable );

    69 

    70     int (*glXGetConfig)

    71 	 ( Display* dpy,

    72 	   XVisualInfo* visual_info,

    73 	   int attrib,

    74 	   int* value );

    75 

    76     void (*glXReleaseBuffersMESA)

    77 	 ( Display* dpy,

    78 	   GLXDrawable drawable );

    79 

    80 #endif /* HAVE_OPENGL */

    81 };

    82 

    83 /* Old variable names */

    84 #define gl_active		(this->gl_data->gl_active)

    85 #define glx_context		(this->gl_data->glx_context)

    86 #define glx_visualinfo		(this->gl_data->glx_visualinfo)

    87 

    88 /* OpenGL functions */

    89 extern XVisualInfo *X11_GL_GetVisual(_THIS);

    90 extern int X11_GL_CreateWindow(_THIS, int w, int h);

    91 extern int X11_GL_CreateContext(_THIS);

    92 extern void X11_GL_Shutdown(_THIS);

    93 #ifdef HAVE_OPENGL

    94 extern int X11_GL_MakeCurrent(_THIS);

    95 extern int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);

    96 extern void X11_GL_SwapBuffers(_THIS);

    97 extern int X11_GL_LoadLibrary(_THIS, const char* path);

    98 extern void *X11_GL_GetProcAddress(_THIS, const char* proc);

    99 #endif

   100 extern void X11_GL_UnloadLibrary(_THIS);

   101
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