/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * Copyright 2016 Toomas Some <tsoome@me.com>
 * Copyright 2020 RackTop Systems, Inc.
 */

#ifndef _GFX_FB_H
#define _GFX_FB_H

/*
 * Graphics support for loader emulation.
 */
#include <sys/visual_io.h>
#include <pnglite.h>

#ifdef __cplusplus
extern "C" {
#endif

struct framebuffer {
        struct vis_identifier ident;
        int fd;                 /* frame buffer device descriptor */
        uint8_t *fb_addr;       /* mapped framebuffer */

        int fb_height;          /* in pixels */
        int fb_width;           /* in pixels */
        int fb_depth;           /* bits per pixel */
        int fb_bpp;             /* bytes per pixel */
        int fb_size;            /* total size in bytes */
        int fb_pitch;           /* bytes per scanline */
        uint16_t terminal_origin_x;
        uint16_t terminal_origin_y;
        uint16_t font_width;
        uint16_t font_height;
        uint8_t red_mask_size;
        uint8_t red_field_position;
        uint8_t green_mask_size;
        uint8_t green_field_position;
        uint8_t blue_mask_size;
        uint8_t blue_field_position;
};

extern struct framebuffer fb;

void gfx_framework_init(void);
void gfx_framework_fini(void);
void gfx_fb_setpixel(uint32_t, uint32_t);
void gfx_fb_drawrect(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
void gfx_term_drawrect(uint32_t, uint32_t, uint32_t, uint32_t);
void gfx_fb_line(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
void gfx_fb_bezier(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t,
        uint32_t);

#define FL_PUTIMAGE_BORDER      0x1
#define FL_PUTIMAGE_NOSCROLL    0x2
#define FL_PUTIMAGE_DEBUG       0x80

int gfx_fb_putimage(png_t *, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);

#ifdef __cplusplus
}
#endif

#endif /* _GFX_FB_H */