psplash-fb.h

/*
 *  pslash - a lightweight framebuffer splashscreen for embedded devices.
 *
 *  Copyright (c) 2006 Matthew Allum <mallum@o-hand.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 */

#ifndef _HAVE_PSPLASH_FB_H
#define _HAVE_PSPLASH_FB_H

typedef struct PSplashColor
{
	uint8 red;
	uint8 green;
	uint8 blue;
} PSplashColor;

static inline PSplashColor psplash_color_make(
	uint8 red,
	uint8 green,
	uint8 blue
)
{
	PSplashColor color = { .red = red, .green = green, .blue = blue };
	return color;
}

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;

	int angle, fbdev_id;
	int real_width, real_height;

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

	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_plot_pixel(
	PSplashFB *fb, int x, int y, PSplashColor color);

void psplash_fb_draw_box(
	PSplashFB *fb,
	int        x,
	int        y,
	int        width,
	int        height,
	int        thickness,
	PSplashColor color);

void psplash_fb_draw_img(
	PSplashImage *image,
	PSplashFB    *fb,
	int           x,
	int           y
);

void psplash_fb_draw_rect(
	PSplashFB *fb, int x, int y, int width, int height, PSplashColor color);

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,
	PSplashColor       color,
	const PSplashFont *font,
	const char *       text);

void psplash_fb_flip(PSplashFB *fb, int sync);

#endif