Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11opengl.h @ 3473:7bdc10624cba

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This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 089a77aebb7d
children f7b03b6838cb
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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 #ifndef _SDL_x11opengl_h
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25 #define _SDL_x11opengl_h
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26
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27 #if SDL_VIDEO_OPENGL_GLX
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28 #include "SDL_opengl.h"
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29 #include <GL/glx.h>
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30
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31 struct SDL_GLDriverData
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32 {
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33 SDL_bool HAS_GLX_EXT_visual_rating;
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34
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35 void *(*glXGetProcAddress) (const GLubyte * procName);
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36
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37 XVisualInfo *(*glXChooseVisual)
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38 (Display * dpy, int screen, int *attribList);
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39
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40 GLXContext(*glXCreateContext)
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41 (Display * dpy, XVisualInfo * vis, GLXContext shareList, Bool direct);
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42
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43 void (*glXDestroyContext)
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44 (Display * dpy, GLXContext ctx);
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45
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46 Bool(*glXMakeCurrent)
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47 (Display * dpy, GLXDrawable drawable, GLXContext ctx);
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48
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49 void (*glXSwapBuffers)
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50 (Display * dpy, GLXDrawable drawable);
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51
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52 int (*glXSwapIntervalSGI) (int interval);
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53 GLint(*glXSwapIntervalMESA) (unsigned interval);
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54 GLint(*glXGetSwapIntervalMESA) (void);
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55 };
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56
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57 /* OpenGL functions */
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58 extern int X11_GL_LoadLibrary(_THIS, const char *path);
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59 extern void *X11_GL_GetProcAddress(_THIS, const char *proc);
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60 extern void X11_GL_UnloadLibrary(_THIS);
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61 extern XVisualInfo *X11_GL_GetVisual(_THIS, Display * display, int screen);
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62 extern SDL_GLContext X11_GL_CreateContext(_THIS, SDL_Window * window);
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63 extern int X11_GL_MakeCurrent(_THIS, SDL_Window * window,
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64 SDL_GLContext context);
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65 extern int X11_GL_SetSwapInterval(_THIS, int interval);
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66 extern int X11_GL_GetSwapInterval(_THIS);
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67 extern void X11_GL_SwapWindow(_THIS, SDL_Window * window);
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68 extern void X11_GL_DeleteContext(_THIS, SDL_GLContext context);
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69
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70 #endif /* SDL_VIDEO_OPENGL_GLX */
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71
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72 #endif /* _SDL_x11opengl_h */
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73
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74 /* vi: set ts=4 sw=4 expandtab: */