fbsplash: shrink, better help text; inifile cannot specify image now;
image can come from stdin function old new delta packed_usage 23872 23932 +60 static.param_names - 57 +57 fbsplash_main 1525 1472 -53 static.param_value 100 - -100 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/1 up/down: 117/-153) Total: -36 bytes text data bss dec hex filename 801202 641 7380 809223 c5907 busybox_old 801181 641 7380 809202 c58f2 busybox_unstripped
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c6dbb85c9e
@ -121,15 +121,17 @@
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"bar"
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#define fbsplash_trivial_usage \
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"[-c] [-d DEV] [-s IMGFILE] [-i INIFILE] [-f CMD]"
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"-s IMGFILE [-c] [-d DEV] [-i INIFILE] [-f CMD]"
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#define fbsplash_full_usage \
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"Options:\n" \
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"\n -s Image" \
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"\n -c Hide cursor" \
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"\n -d Framebuffer device (default /dev/fb0)" \
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"\n -s Splash image" \
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"\n -i Config file" \
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"\n -i Config file (var=value):" \
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"\n BAR_LEFT,BAR_TOP,BAR_WIDTH,BAR_HEIGHT" \
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"\n BAR_R,BAR_G,BAR_B" \
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"\n -f Control pipe (else exit after drawing image)" \
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"\n commands: 'NN' (% for progressbar) or 'exit'" \
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"\n commands: 'NN' (% for progress bar) or 'exit'" \
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#define brctl_trivial_usage \
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"COMMAND [BRIDGE [INTERFACE]]"
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miscutils/fbsplash.c
Normal file
455
miscutils/fbsplash.c
Normal file
@ -0,0 +1,455 @@
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/* vi: set sw=4 ts=4: */
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/*
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* splash implementation for busybox
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*
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* Copyright (C) 2008 Michele Sanges <michele.sanges@otomelara.it>,
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* <michele.sanges@gmail.it>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*
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* Usage:
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* - use kernel option 'vga=xxx' or otherwise enable framebuffer device.
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* - put somewhere the fbsplash.ini file and image in .ppm format.
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* - configure applet by editing .ini file.
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* - run applet: $ setsid fbsplash [params] &
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* -c: hide cursor
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* -d /dev/fbN: framebuffer device (if not /dev/fb0)
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* -s path_of_image_file
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* -i path_of_ini_file
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* -f path_of_fifo (can be "-" for stdin)
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* - if you want to run the applet only in presence of a kernel parameter
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* (for example fbsplash=on), type:
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* grep -q "fbsplash=on" </proc/cmdline && setsid fbsplash [params]
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* - commands for fifo:
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* "NN" (ASCII decimal number) - percentage to show on progress bar.
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* "exit" (or just close fifo) - well you guessed it.
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*/
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/**
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* Splash implementation for busybox
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* \file: fbsplash.c
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* \author Michele Sanges <michele.sanges@otomelara.it> <michele.sanges@gmail.com>
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* \version 1.0.0
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* \date 07/03/2008
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*/
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#include "libbb.h"
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#include <linux/fb.h>
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/* If you want logging messages on /tmp/fbsplash_log... */
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#define DEBUG 0
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#define BYTES_PER_PIXEL 2
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typedef unsigned short DATA;
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struct globals {
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#if DEBUG
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bool bdebug_messages; // enable/disable logging
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FILE *logfile_fd; // log file
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#endif
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unsigned char *addr; // pointer to framebuffer memory
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unsigned nbar_width; // progress bar width
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unsigned nbar_height; // progress bar height
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unsigned nbar_posx; // progress bar horizontal position
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unsigned nbar_posy; // progress bar vertical position
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unsigned char nbar_colr; // progress bar color red component
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unsigned char nbar_colg; // progress bar color green component
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unsigned char nbar_colb; // progress bar color blue component
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const char *image_filename;
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struct fb_var_screeninfo scr_var;
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struct fb_fix_screeninfo scr_fix;
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};
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#define G (*ptr_to_globals)
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#define INIT_G() \
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do { \
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SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
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} while (0)
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#if DEBUG
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#define DEBUG_MESSAGE(strMessage, args...) \
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if (G.bdebug_messages) { \
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fprintf(G.logfile_fd, "[%s][%s] - %s\n", \
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__FILE__, __FUNCTION__, strMessage); \
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}
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#else
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#define DEBUG_MESSAGE(...) ((void)0)
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#endif
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/**
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* Open and initialize the framebuffer device
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* \param *strfb_device pointer to framebuffer device
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*/
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static void fb_open(const char *strfb_device)
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{
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int fbfd = xopen(strfb_device, O_RDWR);
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// framebuffer properties
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xioctl(fbfd, FBIOGET_VSCREENINFO, &G.scr_var);
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xioctl(fbfd, FBIOGET_FSCREENINFO, &G.scr_fix);
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if (G.scr_var.bits_per_pixel != 16)
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bb_error_msg_and_die("only 16 bpp is supported");
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// map the device in memory
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G.addr = mmap(NULL,
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G.scr_var.xres * G.scr_var.yres
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* BYTES_PER_PIXEL /*(G.scr_var.bits_per_pixel / 8)*/ ,
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PROT_WRITE, MAP_SHARED, fbfd, 0);
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if (G.addr == MAP_FAILED)
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bb_perror_msg_and_die("can't mmap %s", strfb_device);
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close(fbfd);
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}
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/**
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* Draw hollow rectangle on framebuffer
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* \param nx1pos,ny1pos upper left position
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* \param nx2pos,ny2pos down right position
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* \param nred24,ngreen24,nblue24 rgb color
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*/
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static void fb_drawrectangle(int nx1pos, int ny1pos, int nx2pos, int ny2pos,
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unsigned char nred, unsigned char ngreen, unsigned char nblue)
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{
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int cnt;
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DATA thispix;
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DATA *ptr1, *ptr2;
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nred >>= 3; // 5-bit red
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ngreen >>= 2; // 6-bit green
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nblue >>= 3; // 5-bit blue
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thispix = nblue + (ngreen << 5) + (nred << (5+6));
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// horizontal lines
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ptr1 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
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ptr2 = (DATA*)(G.addr + (ny2pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
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cnt = nx2pos - nx1pos;
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do {
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*ptr1++ = thispix;
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*ptr2++ = thispix;
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} while (--cnt >= 0);
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// vertical lines
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ptr1 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
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ptr2 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx2pos) * BYTES_PER_PIXEL);
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cnt = ny2pos - ny1pos;
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do {
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*ptr1 = thispix; ptr1 += G.scr_var.xres;
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*ptr2 = thispix; ptr2 += G.scr_var.xres;
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} while (--cnt >= 0);
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}
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/**
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* Draw filled rectangle on framebuffer
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* \param nx1pos,ny1pos upper left position
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* \param nx2pos,ny2pos down right position
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* \param nred24,ngreen24,nblue24 rgb color
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*/
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static void fb_drawfullrectangle(int nx1pos, int ny1pos, int nx2pos, int ny2pos,
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unsigned char nred, unsigned char ngreen, unsigned char nblue)
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{
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int cnt1, cnt2, nypos;
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DATA thispix;
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DATA *ptr;
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nred >>= 3; // 5-bit red
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ngreen >>= 2; // 6-bit green
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nblue >>= 3; // 5-bit blue
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thispix = nblue + (ngreen << 5) + (nred << (5+6));
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cnt1 = ny2pos - ny1pos;
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nypos = ny1pos;
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do {
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ptr = (DATA*)(G.addr + (nypos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
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cnt2 = nx2pos - nx1pos;
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do {
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*ptr++ = thispix;
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} while (--cnt2 >= 0);
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nypos++;
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} while (--cnt1 >= 0);
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}
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/**
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* Draw a progress bar on framebuffer
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* \param nPercent percentage of loading
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*/
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static void fb_drawprogressbar(unsigned nPercent)
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{
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int i, left_x, top_y, width, height;
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// outer box
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left_x = G.nbar_posx;
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top_y = G.nbar_posy;
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width = G.nbar_width - 1;
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height = G.nbar_height - 1;
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if ((height | width) < 0)
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return;
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// NB: "width" of 1 actually makes rect with width of 2!
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fb_drawrectangle(
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left_x, top_y,
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left_x + width, top_y + height,
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G.nbar_colr/2, G.nbar_colg/2, G.nbar_colb/2);
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// inner "empty" rectangle
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left_x++;
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top_y++;
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width -= 2;
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height -= 2;
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if ((height | width) < 0)
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return;
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fb_drawfullrectangle(
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left_x, top_y,
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left_x + width, top_y + height,
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G.nbar_colr, G.nbar_colg, G.nbar_colb);
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if (nPercent > 0) {
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// actual progress bar
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width = width*nPercent/100;
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i = height;
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if (height == 0)
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height++; // divide by 0 is bad
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while (i >= 0) {
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// draw one-line thick "rectangle"
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// top line will have gray lvl 200, bottom one 100
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unsigned gray_level = 100 + i*100/height;
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fb_drawfullrectangle(
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left_x, top_y, left_x + width, top_y,
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gray_level, gray_level, gray_level);
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top_y++;
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i--;
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}
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}
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}
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/**
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* Draw image from PPM file
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*/
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static void fb_drawimage(void)
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{
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char head[256];
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char s[80];
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FILE *theme_file;
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unsigned char *pixline;
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unsigned i, j, width, height, line_size;
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memset(head, 0, sizeof(head));
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theme_file = xfopen_stdin(G.image_filename);
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// parse ppm header
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while (1) {
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if (fgets(s, sizeof(s), theme_file) == NULL)
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bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
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if (s[0] == '#')
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continue;
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if (strlen(head) + strlen(s) >= sizeof(head))
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bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
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strcat(head, s);
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if (head[0] != 'P' || head[1] != '6')
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bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
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// width, height, max_color_val
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if (sscanf(head, "P6 %u %u %u", &width, &height, &i) == 3)
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break;
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// TODO: i must be <= 255!
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}
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line_size = width*3;
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if (width > G.scr_var.xres)
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width = G.scr_var.xres;
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if (height > G.scr_var.yres)
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height = G.scr_var.yres;
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pixline = xmalloc(line_size);
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for (j = 0; j < height; j++) {
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unsigned char *pixel = pixline;
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DATA *src = (DATA *)(G.addr + j * G.scr_fix.line_length);
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if (fread(pixline, 1, line_size, theme_file) != line_size)
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bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
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for (i = 0; i < width; i++) {
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unsigned thispix;
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thispix = (((unsigned)pixel[0] << 8) & 0xf800)
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| (((unsigned)pixel[1] << 3) & 0x07e0)
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| (((unsigned)pixel[2] >> 3));
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*src++ = thispix;
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pixel += 3;
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}
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}
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free(pixline);
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fclose(theme_file);
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}
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/**
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* Parse configuration file
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*/
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static void init(const char *ini_filename)
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{
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static const char const param_names[] ALIGN1 =
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"BAR_LEFT\0" "BAR_TOP\0"
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"BAR_WIDTH\0" "BAR_HEIGHT\0"
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"BAR_R\0" "BAR_G\0" "BAR_B\0"
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#if DEBUG
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"DEBUG\0"
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#endif
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;
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FILE *inifile;
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char *buf;
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inifile = xfopen(ini_filename, "r");
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while ((buf = xmalloc_getline(inifile)) != NULL) {
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char *value_str;
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int val;
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if (*buf == '#') { // it's a comment
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free(buf);
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continue;
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}
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value_str = strchr(buf, '=');
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if (!value_str)
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goto err;
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*value_str++ = '\0';
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val = xatoi_u(value_str);
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switch (index_in_strings(param_names, buf)) {
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case 0:
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// progress bar horizontal position
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G.nbar_posx = val;
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break;
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case 1:
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// progress bar vertical position
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G.nbar_posy = val;
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break;
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case 2:
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// progress bar width
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G.nbar_width = val;
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break;
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case 3:
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// progress bar height
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G.nbar_height = val;
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break;
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case 4:
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// progress bar color - red component
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G.nbar_colr = val;
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break;
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case 5:
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// progress bar color - green component
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G.nbar_colg = val;
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break;
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case 6:
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// progress bar color - blue component
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G.nbar_colb = val;
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break;
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#if DEBUG
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case 7:
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G.bdebug_messages = val;
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if (G.bdebug_messages)
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G.logfile_fd = xfopen("/tmp/fbsplash_log", "w");
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break;
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#endif
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err:
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default:
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bb_error_msg_and_die("syntax error: '%s'", buf);
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}
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free(buf);
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}
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fclose(inifile);
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}
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int fbsplash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int fbsplash_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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char num_buf[16];
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const char *fb_device, *ini_filename, *fifo_filename;
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int fd = fd; // for compiler
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int len, num;
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bool bCursorOff;
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INIT_G();
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// parse command line options
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fb_device = "/dev/fb0";
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ini_filename = NULL;
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fifo_filename = NULL;
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bCursorOff = 1 & getopt32(argv, "cs:d:i:f:",
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&G.image_filename, &fb_device, &ini_filename, &fifo_filename);
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// parse configuration file
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if (ini_filename)
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init(ini_filename);
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// We must have -s IMG
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if (!G.image_filename)
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bb_show_usage();
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if (fifo_filename) {
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fd = STDIN_FILENO;
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if (NOT_LONE_DASH(fifo_filename)) {
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// open command fifo/pipe
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fd = xopen(fifo_filename, O_RDONLY | O_NOCTTY);
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}
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}
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fb_open(fb_device);
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if (fifo_filename && bCursorOff) {
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// hide cursor (BEFORE any fb ops)
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full_write(STDOUT_FILENO, "\x1b" "[?25l", 6);
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}
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fb_drawimage();
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if (fifo_filename) {
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num = 0;
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goto draw_bar;
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while (1) {
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// block on read, waiting for some input
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len = safe_read(fd, num_buf, sizeof(num_buf) - 1);
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if (len <= 0) // EOF/error
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break;
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num_buf[len] = '\0';
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// parse command
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if (strncmp(num_buf, "exit", 4) == 0) {
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DEBUG_MESSAGE("exit");
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break;
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}
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num = atoi(num_buf);
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if (isdigit(num_buf[0]) && (num >= 0) && (num <= 100)) {
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#if DEBUG
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char strVal[10];
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sprintf(strVal, "%d", num);
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DEBUG_MESSAGE(strVal);
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#endif
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draw_bar:
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fb_drawprogressbar(num);
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}
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}
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if (bCursorOff) {
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// restore cursor
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full_write(STDOUT_FILENO, "\x1b" "[?25h", 6);
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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close(fd);
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}
|
||||
|
||||
#if DEBUG
|
||||
if (ENABLE_FEATURE_CLEAN_UP)
|
||||
if (G.bdebug_messages)
|
||||
fclose(G.logfile_fd);
|
||||
#endif
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
9
miscutils/fbsplash.ini
Normal file
9
miscutils/fbsplash.ini
Normal file
@ -0,0 +1,9 @@
|
||||
# progress bar position
|
||||
BAR_LEFT=170
|
||||
BAR_TOP=300
|
||||
BAR_WIDTH=300
|
||||
BAR_HEIGHT=20
|
||||
# progress bar color
|
||||
BAR_R=80
|
||||
BAR_G=80
|
||||
BAR_B=130
|
Loading…
Reference in New Issue
Block a user