vertex_array.h

// =====================================================================================================================
//  fennec, a free and open source game engine
//  Copyright © 2025  Medusa Slockbower
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
// =====================================================================================================================
 
#ifndef FENNEC_RENDERERS_OPENGL_LIB_VERTEX_ARRAY_H
#define FENNEC_RENDERERS_OPENGL_LIB_VERTEX_ARRAY_H
 
#include <fennec/renderers/opengl/lib/fwd.h>
#include <fennec/renderers/opengl/lib/enum.h>
 
namespace fennec
{
 
namespace gl
{
 
class vertex_array {
public:
    constexpr vertex_array()
        : _handle(NULL) {
        glGenVertexArrays(1, &_handle);
    }
 
    constexpr ~vertex_array() {
        glDeleteVertexArrays(1, &_handle);
    }
 
    constexpr void start() const {
        glBindVertexArray(_handle);
    }
 
    constexpr void end() const {
        glBindVertexArray(NULL);
    }
 
    constexpr void set_attribute(GLuint i, GLenum type, GLint n, GLintptr offset, GLboolean normalized = false) {
        glVertexAttribFormat(i, n, type, normalized, offset);
        glEnableVertexAttribArray(i);
    }
 
    constexpr void clear_attribute(GLuint i) {
        glDisableVertexAttribArray(i);
    }
 
private:
    GLuint _handle;
};
 
}
 
}
 
#endif // FENNEC_RENDERERS_OPENGL_LIB_VERTEX_ARRAY_H