framebuffer.h

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/* -*- mode: c; c-basic-offset: 4; -*- */
#ifndef __FRAMEBUFFER__
#define __FRAMEBUFFER__

#include <stdarg.h>
#include "libstd/defines.h"
#include "libstd/nexus.h"
#include "libmath/geometry/shape.h"
#include "libfont/font.h"

/* OPTIMIZE: Pack this so we don't waste memory */
typedef char** framebuffer;

framebuffer fb_init(void);

void fb_destroy(framebuffer);

void fb_erase_string(framebuffer, point*, char*);

inline
void fb_erase_string_anon(framebuffer fb, point* top_left_corner, char* string) {

    fb_erase_string(fb, top_left_corner, string);
    free(top_left_corner);
}

void fb_erase_char(framebuffer, point*, char);

inline
void fb_erase_char_anon(framebuffer fb, point* top_left_corner, char c) {

    fb_erase_char_anon(fb, top_left_corner, c);
    free(top_left_corner);
}

private void _fb_draw_string(framebuffer, point*, char*);

inline
void fb_draw_string(framebuffer fb, point* top_left_corner, char* string) {

    _fb_draw_string(fb, top_left_corner, string);
}

inline
void fb_draw_string_anon_pt(framebuffer fb, point* top_left_corner, char* string) {

    _fb_draw_string(fb, top_left_corner, string);
    free(top_left_corner);
}


private void _fb_draw_char(framebuffer, point*, char);

void fb_draw_shape(framebuffer, shape*);

void fb_draw_shapes(framebuffer, ushort, ...);

void fb_draw_shape_arr(framebuffer, ushort, shape**);

void fb_erase_shape_arr(framebuffer, ushort, shape**);

private void _fb_draw_shape(framebuffer, shape*, shade_t);

inline void fb_erase_shape(framebuffer fb, shape* sh) {

    _fb_draw_shape(fb, sh, FB_COLOR_ERASE);
}

void fb_set_pixel(framebuffer, uchar, uchar, shade_t);

inline void fb_clear_pixel(framebuffer fb, uchar x, uchar y) {

    fb_set_pixel(fb, x, y, FB_COLOR_ERASE);
}

inline void fb_erase_pixel(framebuffer fb, uchar x, uchar y) {

    fb_clear_pixel(fb, x, y);
}

private void _fb_draw_line(framebuffer, point*, point*, shade_t);

inline
void fb_erase_anon_line(framebuffer fb, point* point1, point* point2) {

    _fb_draw_line(fb, point1, point2, FB_COLOR_ERASE);
    SHDestroyPoint(point1);
    SHDestroyPoint(point2);
}

inline
void fb_erase_line(framebuffer fb, point* point1, point* point2) {

    _fb_draw_line(fb, point1, point2, FB_COLOR_ERASE);
}

inline
void fb_draw_anon_line(framebuffer fb, point* point1, point* point2, shade_t shade) {

    _fb_draw_line(fb, point1, point2, shade);
    SHDestroyPoint(point1);
    SHDestroyPoint(point2);
}

inline
void fb_draw_line(framebuffer fb, point* point1, point* point2, shade_t shade) {

    _fb_draw_line(fb, point1, point2, shade);
}

inline void fb_draw_line_gradient(framebuffer fb,
                  point*      point1,
                  point*      point2,
                  shade_t     shade) {

    fb_draw_line(fb, point1, point2, shade);
}

void fb_draw_ellipse(framebuffer, point*, ushort, ushort, shade_t);

inline void fb_draw_circle(framebuffer fb, circle* c) {

    fb_draw_ellipse(fb, c->center, c->radius, c->radius, c->center->shade);
}

private void _fb_fill_four_ellipse_points(framebuffer, point*, ushort, ushort);

void fb_draw_ellipse_fill(framebuffer, point*, ushort, ushort, shade_t);

private
void _fb_plot_four_ellipse_points(framebuffer, point*, ushort, ushort);

void fb_console_println_point(point*);

void fb_console_print_point(point*);

void fb_console_println_coordinate(uchar, uchar, shade_t);

void fb_console_print_coordinate(uchar, uchar, shade_t);

/* private pixel_t _fb_pixel_width_of_long(long); */
/* private pixel_t _fb_pixel_height_of_long(long); */
/* private pixel_t _fb_pixel_width_of_string(char*); */

#endif