psplash-fb.h

/* 
 *  pslash - a lightweight framebuffer splashscreen for embedded devices. 
 *
 *  Copyright (c) 2006 Matthew Allum <mallum@o-hand.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *
 */

#ifndef _HAVE_PSPLASH_FB_H
#define _HAVE_PSPLASH_FB_H

enum RGBMode {
    RGB565,
    BGR565,
    RGB888,
    BGR888,
    GENERIC,
};

typedef struct PSplashFB
{
  int            fd;			
  struct fb_var_screeninfo fb_var;
  struct termios save_termios;	        
  int            type;		        
  int            visual;		
  int            width, height;
  int            bpp;
  int            stride;
  char		*data;
  char		*base;

  /* Support for double buffering */
  int		double_buffering;
  char		*bdata;
  char		*fdata;

  int            angle, fbdev_id;
  int            real_width, real_height;

  enum RGBMode   rgbmode;
  int            red_offset;
  int            red_length;
  int            green_offset;
  int            green_length;
  int            blue_offset;
  int            blue_length;
}
PSplashFB;

void
psplash_fb_destroy (PSplashFB *fb);

PSplashFB*
psplash_fb_new (int angle, int fbdev_id);

void
psplash_fb_draw_rect (PSplashFB    *fb, 
		      int          x, 
		      int          y, 
		      int          width, 
		      int          height,
		      uint8        red,
		      uint8        green,
		      uint8        blue);

void
psplash_fb_draw_image (PSplashFB    *fb, 
		       int          x, 
		       int          y, 
		       int          img_width, 
		       int          img_height,
		       int          img_bytes_pre_pixel,
		       int          img_rowstride,
		       uint8       *rle_data);

void
psplash_fb_text_size (int                *width,
		      int                *height,
		      const PSplashFont  *font,
		      const char         *text);

void
psplash_fb_draw_text (PSplashFB         *fb, 
		      int                x, 
		      int                y, 
		      uint8              red,
		      uint8              green,
		      uint8              blue,
		      const PSplashFont *font,
		      const char        *text);

void
psplash_fb_flip(PSplashFB *fb, int sync);

#endif