glfw_utils.h

/*
The MIT License (MIT)

Copyright (c) 2014 Adam Simpson

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 GLFW_UTILS_H
#define GLFW_UTILS_H

#include <GL/glew.h>
#include <GLFW/glfw3.h>

#include "renderer.h"

typedef struct gl_t {
    int screen_width;
    int screen_height;

    GLFWwindow* window;
} gl_t ;

static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods);
static void mouse_callback(GLFWwindow* window, double xpos, double ypos);
void error_callback(int error, const char* description);
void check_user_input(gl_t *state);
void init_ogl(gl_t *state, render_t *render_state);
void exit_ogl(gl_t *state);
void swap_ogl(gl_t *state);
bool window_should_close(gl_t *state);
void pixel_to_gl(gl_t *state, int pixel_x, int pixel_y, float *gl_x, float *gl_y);
void check_exit_with_selected_program(render_t *render_state, GLFWwindow* window);
void toggle_pause(render_t *state);
void toggle_quit_mode(render_t *state);
void check_start_race(render_t *render_state);

#endif