Added missing files for OpenGL ES support

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403649

src/video/x11/SDL_x11opengles.h

+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2004 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+
+    Open Pandora SDL driver
+    Copyright (C) 2009 David Carré
+    (cpasjuste@gmail.com)
+*/
+
+#include <GLES/gl.h>
+#include <GLES/egl.h>
+#include <dlfcn.h>
+#if defined(__OpenBSD__) && !defined(__ELF__)
+#define dlsym(x,y) dlsym(x, "_" y)
+#endif
+
+#include "../SDL_sysvideo.h"
+
+typedef struct SDL_PrivateGLESData
+{
+    int egl_active;             /* to stop switching drivers while we have a valid context */
+    XVisualInfo *egl_visualinfo;
+    EGLDisplay egl_display;
+    EGLContext egl_context;     /* Current GLES context */
+    EGLSurface egl_surface;
+    EGLConfig egl_config;
+
+      EGLDisplay(*eglGetDisplay) (NativeDisplayType display);
+      EGLBoolean(*eglInitialize) (EGLDisplay dpy, EGLint * major,
+                                  EGLint * minor);
+      EGLBoolean(*eglTerminate) (EGLDisplay dpy);
+
+    void *(*eglGetProcAddress) (const GLubyte * procName);
+
+      EGLBoolean(*eglChooseConfig) (EGLDisplay dpy,
+                                    const EGLint * attrib_list,
+                                    EGLConfig * configs,
+                                    EGLint config_size, EGLint * num_config);
+
+      EGLContext(*eglCreateContext) (EGLDisplay dpy,
+                                     EGLConfig config,
+                                     EGLContext share_list,
+                                     const EGLint * attrib_list);
+
+      EGLBoolean(*eglDestroyContext) (EGLDisplay dpy, EGLContext ctx);
+
+      EGLSurface(*eglCreateWindowSurface) (EGLDisplay dpy,
+                                           EGLConfig config,
+                                           NativeWindowType window,
+                                           const EGLint * attrib_list);
+      EGLBoolean(*eglDestroySurface) (EGLDisplay dpy, EGLSurface surface);
+
+      EGLBoolean(*eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw,
+                                   EGLSurface read, EGLContext ctx);
+
+      EGLBoolean(*eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw);
+
+    const char *(*eglQueryString) (EGLDisplay dpy, EGLint name);
+
+      EGLBoolean(*eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config,
+                                       EGLint attribute, EGLint * value);
+
+} SDL_PrivateGLESData;
+
+/* OpenGLES functions */
+extern SDL_GLContext X11_GLES_CreateContext(_THIS, SDL_Window * window);
+extern XVisualInfo *X11_GLES_GetVisual(_THIS, Display * display, int screen);
+extern int X11_GLES_MakeCurrent(_THIS, SDL_Window * window,
+                                SDL_GLContext context);
+extern int X11_GLES_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
+extern int X11_GLES_LoadLibrary(_THIS, const char *path);
+extern void *X11_GLES_GetProcAddress(_THIS, const char *proc);
+extern void X11_GLES_UnloadLibrary(_THIS);
+
+extern int X11_GLES_SetSwapInterval(_THIS, int interval);
+extern int X11_GLES_GetSwapInterval(_THIS);
+extern void X11_GLES_SwapWindow(_THIS, SDL_Window * window);
+extern void X11_GLES_DeleteContext(_THIS, SDL_GLContext context);