fbg_glfw.h

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/*
    Copyright (c) 2018, Julien Verneuil
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
        * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
        * Neither the name of the organization nor the
        names of its contributors may be used to endorse or promote products
        derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL Julien Verneuil BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef FB_GRAPHICS_GLFW_H
#define FB_GRAPHICS_GLFW_H

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

    #include "fbgraphics.h"

    struct _fbg_glfw_context {
        GLFWwindow *window;
        GLFWmonitor *monitor;
        GLenum simple_program;
        GLuint fbg_vao;
        GLuint fbg_texture;
        int update_buffer;
    };

    extern const GLfloat fbg_glfwQuad[];

    extern const char *fbg_glfwSimpleVs;

    extern const char *fbg_glfwSimpleFs;


    extern struct _fbg *fbg_glfwSetup(int width, int height, int components, const char *title, int monitor, int fullscreen);

    extern void fbg_glfwClear();


    extern void fbg_glfwUpdateBuffer(struct _fbg *fbg);


    extern int fbg_glfwShouldClose(struct _fbg *fbg);


    extern void fbg_glfwFullscreen(struct _fbg *fbg, int enable);


    extern void fbg_glfwResize(struct _fbg *fbg, unsigned int new_width, unsigned new_height);


    GLuint fbg_glfwCreateTextureFromImage(struct _fbg *fbg, struct _fbg_img *img);

    //-- A SET OF RAW OPENGL UTILITY FUNCTIONS --

    extern GLuint fbg_glfwCreateTexture(GLuint width, GLuint height, GLint internal_format);


    extern GLuint fbg_glfwCreateVAO(GLsizeiptr indices_count, const GLvoid *indices_data, size_t sizeof_indice_type,
                                    GLsizeiptr vertices_count, const GLvoid *vertices_data,
                                    GLsizeiptr texcoords_count, const GLvoid *texcoords_data,
                                    GLsizeiptr normals_count, const GLvoid *normals_data,
                                    GLsizeiptr colors_count, const GLvoid *colors_data);


    extern GLuint fbg_glfwCreateVAOvu(GLsizeiptr data_count, const GLvoid *data);


    extern GLuint fbg_glfwCreateFBO(GLuint texture);


    extern GLuint fbg_glfwCreateShader(GLenum type, const GLchar *source);


    extern GLuint fbg_glfwCreateShaderFromFile(GLenum type, const char *filename);


    extern GLuint fbg_glfwCreateProgram(GLuint vertex_shader, GLuint fragment_shader, GLuint geometry_shader);


    extern GLenum fbg_glfwCreateProgramFromFiles(const char *vs, const char *fs, const char *gs);


    extern GLenum fbg_glfwCreateProgramFromString(const char *vs, const char *fs, const char *gs);

#endif