src/video/ataricommon/SDL_atarigl_c.h
changeset 989 475166d13b44
child 991 12b13601a544
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988:24b5c3ad4852 989:475166d13b44
       
     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 1997-2004 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@libsdl.org
       
    21 */
       
    22 
       
    23 /* Atari OSMesa.ldg implementation of SDL OpenGL support */
       
    24 
       
    25 #ifndef _SDL_ATARIGL_H_
       
    26 #define _SDL_ATARIGL_H_
       
    27 
       
    28 #ifdef HAVE_OPENGL
       
    29 #include <GL/osmesa.h>
       
    30 #endif
       
    31 
       
    32 #include "SDL_sysvideo.h"
       
    33 #define _THIS   SDL_VideoDevice *this
       
    34 
       
    35 struct SDL_PrivateGLData {
       
    36 	/* to stop switching drivers while we have a valid context */
       
    37     int gl_active; 
       
    38 
       
    39 	/* for unsupported OSMesa buffer formats */
       
    40 	void (*ConvertSurface)(SDL_Surface *surface);	
       
    41 
       
    42 #ifdef HAVE_OPENGL
       
    43 	OSMesaContext	ctx;
       
    44 #endif
       
    45 };
       
    46 
       
    47 /* Old variable names */
       
    48 #define gl_active	(this->gl_data->gl_active)
       
    49 #define gl_ctx		(this->gl_data->ctx)
       
    50 #define gl_convert	(this->gl_data->ConvertSurface)
       
    51 
       
    52 /* OpenGL functions */
       
    53 extern int SDL_AtariGL_Init(_THIS, SDL_Surface *current);
       
    54 extern void SDL_AtariGL_Quit(_THIS);
       
    55 
       
    56 extern int SDL_AtariGL_LoadLibrary(_THIS, const char *path);
       
    57 extern void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc);
       
    58 extern int SDL_AtariGL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
       
    59 extern int SDL_AtariGL_MakeCurrent(_THIS);
       
    60 extern void SDL_AtariGL_SwapBuffers(_THIS);
       
    61 
       
    62 #endif /* _SDL_ATARIGL_H_ */