gl_helper.hpp

/*
 * MIT License
 *
 * Copyright (c) 2024 Giovanni Santini
 
 * 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.
 *
 */
 
/*
 * Helper functions to interact with OpenGL.
 */
 
#pragma once
 
#include <glad/glad.h> /* OpenGL driver */
 
namespace brenta
{
 
class gl
{
  public:
    static void load_opengl(bool gl_blending = true, bool gl_cull_face = true,
                            bool gl_multisample = true,
                            bool gl_depth_test = true);
    static void set_poligon_mode(GLboolean enable);
    static void set_viewport(int x, int y, int SCR_WIDTH, int SCR_HEIGHT);
    static void set_color(float r, float g, float b, float a);
    static void draw_arrays(GLenum mode, int first, int count);
    static void draw_elements(GLenum mode, int count, GLenum type,
                              const void *indices);
    static void clear();
    static void bind_vertex_array(unsigned int n);
    static GLenum check_error_(const char *file, int line);
#define check_error() gl::check_error_(__FILE__, __LINE__)
};
 
} // namespace brenta