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annotate src/video/x11/SDL_x11opengles.h @ 3583:65f66674b7fb

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Allocate memory only if we're going to overwrite an environment variable
author Sam Lantinga <slouken@libsdl.org>
date Wed, 16 Dec 2009 16:08:17 +0000
parents c68d2ca5970f
children f7b03b6838cb
rev   line source
3190
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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 Open Pandora SDL driver
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23 Copyright (C) 2009 David Carré
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24 (cpasjuste@gmail.com)
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25 */
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26
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27 #include <GLES/gl.h>
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28 #include <GLES/egl.h>
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29 #include <dlfcn.h>
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30 #if defined(__OpenBSD__) && !defined(__ELF__)
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31 #define dlsym(x,y) dlsym(x, "_" y)
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32 #endif
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33
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34 #include "../SDL_sysvideo.h"
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35
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36 typedef struct SDL_PrivateGLESData
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37 {
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38 int egl_active; /* to stop switching drivers while we have a valid context */
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39 XVisualInfo *egl_visualinfo;
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40 EGLDisplay egl_display;
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41 EGLContext egl_context; /* Current GLES context */
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42 EGLSurface egl_surface;
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43 EGLConfig egl_config;
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44
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45 EGLDisplay(*eglGetDisplay) (NativeDisplayType display);
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46 EGLBoolean(*eglInitialize) (EGLDisplay dpy, EGLint * major,
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47 EGLint * minor);
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48 EGLBoolean(*eglTerminate) (EGLDisplay dpy);
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49
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50 void *(*eglGetProcAddress) (const GLubyte * procName);
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51
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52 EGLBoolean(*eglChooseConfig) (EGLDisplay dpy,
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53 const EGLint * attrib_list,
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54 EGLConfig * configs,
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55 EGLint config_size, EGLint * num_config);
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56
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57 EGLContext(*eglCreateContext) (EGLDisplay dpy,
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58 EGLConfig config,
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59 EGLContext share_list,
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60 const EGLint * attrib_list);
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61
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62 EGLBoolean(*eglDestroyContext) (EGLDisplay dpy, EGLContext ctx);
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63
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64 EGLSurface(*eglCreateWindowSurface) (EGLDisplay dpy,
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65 EGLConfig config,
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66 NativeWindowType window,
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67 const EGLint * attrib_list);
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68 EGLBoolean(*eglDestroySurface) (EGLDisplay dpy, EGLSurface surface);
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69
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70 EGLBoolean(*eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw,
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71 EGLSurface read, EGLContext ctx);
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72
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73 EGLBoolean(*eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw);
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74
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75 const char *(*eglQueryString) (EGLDisplay dpy, EGLint name);
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76
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77 EGLBoolean(*eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config,
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78 EGLint attribute, EGLint * value);
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79
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80 } SDL_PrivateGLESData;
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81
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82 /* OpenGLES functions */
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83 extern SDL_GLContext X11_GLES_CreateContext(_THIS, SDL_Window * window);
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84 extern XVisualInfo *X11_GLES_GetVisual(_THIS, Display * display, int screen);
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85 extern int X11_GLES_MakeCurrent(_THIS, SDL_Window * window,
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86 SDL_GLContext context);
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87 extern int X11_GLES_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
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88 extern int X11_GLES_LoadLibrary(_THIS, const char *path);
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89 extern void *X11_GLES_GetProcAddress(_THIS, const char *proc);
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90 extern void X11_GLES_UnloadLibrary(_THIS);
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91
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92 extern int X11_GLES_SetSwapInterval(_THIS, int interval);
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93 extern int X11_GLES_GetSwapInterval(_THIS);
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94 extern void X11_GLES_SwapWindow(_THIS, SDL_Window * window);
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95 extern void X11_GLES_DeleteContext(_THIS, SDL_GLContext context);