#ifndef shader_h
#define shader_h

#include <stddef.h>

#if defined(__APPLE__)
#include <OpenGL/glu.h>
#include <OpenGL/glext.h>
#else
#define GL_GLEXT_PROTOTYPES 1
#include <GL/glu.h>
#include <GL/glext.h>
#endif

typedef struct opaque_shader *shader_t;

shader_t make_shader(
    size_t vertex_shader_count,
    const char **vertex_shader_texts,
    size_t fragment_shader_count,
    const char **fragment_shader_texts);

void delete_shader(shader_t shader);

GLboolean shader_ok(shader_t shader);

const char *shader_error_text(shader_t shader);

GLhandleARB shader_program(shader_t shader);

#endif