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annotate src/video/ataricommon/SDL_atarigl_c.h @ 2581:a1c00531ee00 gsoc2008_force_feedback

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Minor changes for it to compile.
author Edgar Simo <bobbens@gmail.com>
date Mon, 04 Aug 2008 11:29:19 +0000
parents b657f0bc72c2
children 99210400e8b9
rev   line source
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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 #include "SDL_config.h"
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23
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24 /* Atari OSMesa.ldg implementation of SDL OpenGL support */
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25
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26 #ifndef _SDL_ATARIGL_H_
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27 #define _SDL_ATARIGL_H_
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28
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29 #if SDL_VIDEO_OPENGL
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30 #include <GL/osmesa.h>
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31 #endif
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32
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33 #include "../SDL_sysvideo.h"
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34
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35 struct SDL_GLDriverData
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36 {
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37
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38 int gl_active; /* to stop switching drivers while we have a valid context */
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39
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40 int gl_oldmesa; /* Old OpenGL support ? */
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41
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42 int gl_pixelsize; /* for CopyShadow functions */
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43
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44 SDL_bool gl_upsidedown; /* Some implementations draw upside down */
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45
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46 Uint8 *gl_shadow; /* Shadow buffer for old implementations */
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47
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48 /* for unsupported OSMesa buffer formats */
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49 void (*ConvertSurface) (_THIS, SDL_Surface * surface);
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50
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51 /* to convert the shadow buffer to the screen format */
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52 void (*CopyShadow) (_THIS, SDL_Surface * surface);
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53
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54 #if SDL_VIDEO_OPENGL
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55 OSMesaContext ctx;
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56
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57 /* OpenGL functions */
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58 void (*glGetIntegerv) (GLenum pname, GLint * value);
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59 void (*glFinish) (void);
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60 void (*glFlush) (void);
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61
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62 /* osmesa.ldg */
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63 OSMesaContext(*OSMesaCreateContextExt) (GLenum format, GLint depthBits,
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64 GLint stencilBits,
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65 GLint accumBits,
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66 OSMesaContext sharelist);
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67 void (*OSMesaDestroyContext) (OSMesaContext ctx);
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68 GLboolean(*OSMesaMakeCurrent) (OSMesaContext ctx, void *buffer,
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69 GLenum type, GLsizei width,
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70 GLsizei height);
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71 void (*OSMesaPixelStore) (GLint pname, GLint value);
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72 void *(*OSMesaGetProcAddress) (const char *funcName);
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73
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74 /* mesa_gl.ldg, tiny_gl.ldg */
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75 void *(*OSMesaCreateLDG) (long format, long type, long width,
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76 long height);
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77 void (*OSMesaDestroyLDG) (void);
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78
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79 /* Info needed to compare existing context with new asked one */
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80 int width, height;
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81 GLenum format;
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82 GLint depth, stencil, accum;
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83 #endif
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84 };
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85
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86 /* Variable names */
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87 #define gl_active (_this->gl_data->gl_active)
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88 #define gl_ctx (_this->gl_data->ctx)
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89 #define gl_oldmesa (_this->gl_data->gl_oldmesa)
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90 #define gl_pixelsize (_this->gl_data->gl_pixelsize)
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91 #define gl_upsidedown (_this->gl_data->gl_upsidedown)
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92 #define gl_shadow (_this->gl_data->gl_shadow)
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93 #define gl_convert (_this->gl_data->ConvertSurface)
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94 #define gl_copyshadow (_this->gl_data->CopyShadow)
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95 #define gl_curformat (_this->gl_data->format)
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96 #define gl_curdepth (_this->gl_data->depth)
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97 #define gl_curstencil (_this->gl_data->stencil)
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98 #define gl_curaccum (_this->gl_data->accum)
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99 #define gl_curwidth (_this->gl_data->width)
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100 #define gl_curheight (_this->gl_data->height)
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101
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102 /* OpenGL functions */
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103 extern int SDL_AtariGL_Init(_THIS, SDL_Surface * current);
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104 extern void SDL_AtariGL_Quit(_THIS, SDL_bool unload);
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105 extern void SDL_AtariGL_InitPointers(_THIS);
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106
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107 extern int SDL_AtariGL_LoadLibrary(_THIS, const char *path);
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108 extern void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc);
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109 extern int SDL_AtariGL_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
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110 extern int SDL_AtariGL_MakeCurrent(_THIS);
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111 extern void SDL_AtariGL_SwapBuffers(_THIS);
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112
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113 #endif /* _SDL_ATARIGL_H_ */
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114 /* vi: set ts=4 sw=4 expandtab: */