/*************************************************************************/
/*  bbutil.h                                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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.                */
/*************************************************************************/
#ifndef _UTILITY_H_INCLUDED
#define _UTILITY_H_INCLUDED

#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include <screen/screen.h>
#include <sys/platform.h>

#ifdef __cplusplus
extern "C" {
#endif

extern EGLDisplay egl_disp;
extern EGLSurface egl_surf;

enum RENDERING_API {GL_ES_1 = EGL_OPENGL_ES_BIT, GL_ES_2 = EGL_OPENGL_ES2_BIT, VG = EGL_OPENVG_BIT};

/**
 * Initializes EGL, GL and loads a default font
 *
 * \param libscreen context that will be used for EGL setup
 * \return EXIT_SUCCESS if initialization succeeded otherwise EXIT_FAILURE
 */
int bbutil_init(screen_context_t ctx, enum RENDERING_API api);

/**
 * Initializes EGL
 *
 * \param libscreen context that will be used for EGL setup
 * \return EXIT_SUCCESS if initialization succeeded otherwise EXIT_FAILURE
 */
int bbutil_init_egl(screen_context_t ctx, enum RENDERING_API api);

/**
 * Initializes GL 1.1 for simple 2D rendering. GL2 initialization will be added at a later point.
 *
 * \return EXIT_SUCCESS if initialization succeeded otherwise EXIT_FAILURE
 */
int bbutil_init_gl2d();

int bbutil_is_flipped();
int bbutil_get_rotation();

char *get_window_group_id();

int bbutil_rotate_screen_surface(int angle);

/**
 * Terminates EGL
 */
void bbutil_terminate();

/**
 * Swaps default bbutil window surface to the screen
 */
void bbutil_swap();

/**
 * Clears the screen of any existing text.
 * NOTE: must be called after a successful return from bbutil_init() or bbutil_init_egl() call
 */
void bbutil_clear();

#ifdef __cplusplus
};
#endif

#endif