annotate src/video/x11/SDL_x11gl_c.h @ 1269:905d5b482f2a

Some explanation on why SDL_RWFromFP doesn't always work on Win32
author Sam Lantinga <slouken@libsdl.org>
date Thu, 26 Jan 2006 06:10:34 +0000
parents 2bd4cec0de63
children c9b51268668f
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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 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifdef HAVE_OPENGL_X11
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29 #include <GL/glx.h>
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30 #ifdef USE_DLOPEN
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31 #include <dlfcn.h>
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32 #else
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33 #include "SDL_loadso.h"
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34 #endif
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35 #endif
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36
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37 #include "SDL_sysvideo.h"
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38
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39 struct SDL_PrivateGLData {
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40 int gl_active; /* to stop switching drivers while we have a valid context */
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41
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42 #ifdef HAVE_OPENGL_X11
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43 GLXContext glx_context; /* Current GL context */
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44 XVisualInfo* glx_visualinfo; /* XVisualInfo* returned by glXChooseVisual */
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45
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46 void * (*glXGetProcAddress)(const GLubyte *procName);
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47
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48 XVisualInfo* (*glXChooseVisual)
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49 ( Display* dpy,
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50 int screen,
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51 int* attribList );
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52
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53 GLXContext (*glXCreateContext)
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54 ( Display* dpy,
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55 XVisualInfo* vis,
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56 GLXContext shareList,
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57 Bool direct );
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58
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59 void (*glXDestroyContext)
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60 ( Display* dpy,
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61 GLXContext ctx );
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62
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63 Bool (*glXMakeCurrent)
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64 ( Display* dpy,
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65 GLXDrawable drawable,
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66 GLXContext ctx );
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67
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68 void (*glXSwapBuffers)
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69 ( Display* dpy,
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70 GLXDrawable drawable );
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71
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72 int (*glXGetConfig)
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73 ( Display* dpy,
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74 XVisualInfo* visual_info,
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75 int attrib,
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76 int* value );
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77
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78 void (*glXReleaseBuffersMESA)
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79 ( Display* dpy,
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80 GLXDrawable drawable );
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81
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82 const char *(*glXQueryExtensionsString)
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83 ( Display* dpy,
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84 int screen);
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86
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87 #endif /* HAVE_OPENGL_X11 */
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88 };
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89
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90 /* Old variable names */
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91 #define gl_active (this->gl_data->gl_active)
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92 #define glx_context (this->gl_data->glx_context)
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93 #define glx_visualinfo (this->gl_data->glx_visualinfo)
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94
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95 /* OpenGL functions */
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96 extern XVisualInfo *X11_GL_GetVisual(_THIS);
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97 extern int X11_GL_CreateWindow(_THIS, int w, int h);
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98 extern int X11_GL_CreateContext(_THIS);
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99 extern void X11_GL_Shutdown(_THIS);
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100 #ifdef HAVE_OPENGL_X11
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101 extern int X11_GL_MakeCurrent(_THIS);
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102 extern int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
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103 extern void X11_GL_SwapBuffers(_THIS);
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104 extern int X11_GL_LoadLibrary(_THIS, const char* path);
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105 extern void *X11_GL_GetProcAddress(_THIS, const char* proc);
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106 #endif
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107 extern void X11_GL_UnloadLibrary(_THIS);
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108