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annotate src/video/ataricommon/SDL_atarigl_c.h @ 989:475166d13b44

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Factorize OSMesa OpenGL code for Atari drivers
author Patrice Mandin <patmandin@gmail.com>
date Thu, 25 Nov 2004 15:47:49 +0000
parents
children 12b13601a544
rev   line source
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* Atari OSMesa.ldg implementation of SDL OpenGL support */
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24
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25 #ifndef _SDL_ATARIGL_H_
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26 #define _SDL_ATARIGL_H_
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27
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28 #ifdef HAVE_OPENGL
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29 #include <GL/osmesa.h>
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30 #endif
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31
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32 #include "SDL_sysvideo.h"
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33 #define _THIS SDL_VideoDevice *this
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34
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35 struct SDL_PrivateGLData {
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36 /* to stop switching drivers while we have a valid context */
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37 int gl_active;
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38
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39 /* for unsupported OSMesa buffer formats */
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40 void (*ConvertSurface)(SDL_Surface *surface);
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41
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42 #ifdef HAVE_OPENGL
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43 OSMesaContext ctx;
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44 #endif
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45 };
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46
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47 /* Old variable names */
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48 #define gl_active (this->gl_data->gl_active)
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49 #define gl_ctx (this->gl_data->ctx)
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50 #define gl_convert (this->gl_data->ConvertSurface)
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51
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52 /* OpenGL functions */
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53 extern int SDL_AtariGL_Init(_THIS, SDL_Surface *current);
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54 extern void SDL_AtariGL_Quit(_THIS);
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55
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56 extern int SDL_AtariGL_LoadLibrary(_THIS, const char *path);
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57 extern void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc);
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58 extern int SDL_AtariGL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
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59 extern int SDL_AtariGL_MakeCurrent(_THIS);
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60 extern void SDL_AtariGL_SwapBuffers(_THIS);
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61
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62 #endif /* _SDL_ATARIGL_H_ */