+/* Copyright © 2013, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* Perform some simple drawing via OpenGL as follows:
+ *
+ * 1. Using EGL to construct an OpenGLESv2 context
+ * 2. By directly linking with libEGL.so and libGLESv2.so
+ * 3. By directly calling OpenGL functions
+ */
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+
+#include "util-x11.h"
+
+#define COMMON_USE_EGL
+#define COMMON_GL_PREFIX
+#define COMMON_EGL_PREFIX
+#include "common.c"
+
+int
+main (void)
+{
+ Display *dpy;
+ Window window;
+ EGLDisplay egl_dpy;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLSurface surface;
+ XVisualInfo *visual_info;
+
+ dpy = util_x11_init_display ();
+
+ common_create_egl_context (dpy, EGL_OPENGL_ES_API, &egl_dpy,
+ &ctx, &config, &visual_info);
+
+ window = util_x11_init_window (dpy, visual_info);
+
+ surface = eglCreateWindowSurface (egl_dpy, config, window, NULL);
+
+ common_make_current (egl_dpy, ctx, surface);
+
+ common_handle_events (dpy, egl_dpy, surface);
+
+ util_x11_fini_window (dpy, window);
+
+ util_x11_fini_display (dpy);
+
+ return 0;
+}