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/*
* Copyright (c) 2011-2013 Research In Motion Limited.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#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
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