On Tuesday 25 March 2008 08:47, Michele Sanges wrote:
> please, can you consider the bbsplash patch I sent on march 7.
> I try to resend it.
Sorry for the delay.
+// BUG: can go into infinite loop.
+// Imagine a file with the following contents: "P6 123"
This had to be addressed! Grrr
if (strlen(head) + strlen(s) >= sizeof(head))
exit(3);
...and user have no idea why it doesn't work...
fread(pix, 1, 3, G.theme_file);
error check?
+static void fb_drawfullrectangle(int nx1pos, int ny1pos, int nx2pos, int
ny2pos,
+ unsigned char nred, unsigned char ngreen, unsigned char nblue)
+{
...
+ cnt1 = ny2pos - ny1pos;
+ nypos = ny1pos;
+ do {
+ ptr = (DATA*)(G.addr + (nypos * G.screen_infovar.xres + nx1pos)
* BYTES_PER_PIXEL);
+ cnt2 = nx2pos - nx1pos;
+ do {
+ *ptr++ = thispix;
+ } while (--cnt2 >= 0);
+
+ nypos++;
+ } while(--cnt1 >= 0);
Now it looks much better!
for (i = 1; i < (G.nbar_height - 1); i++)
fb_drawfullrectangle(
G.nbar_posx + 1,
G.nbar_posy + i,
G.nbar_posx + 1 + (G.nbar_width -
2)*nPercent/100,
G.nbar_posy + (i+1),
200-(100*(i-1))/(G.nbar_height - 2),
200-(100*(i-1))/(G.nbar_height - 2),
200-(100*(i-1))/(G.nbar_height - 2));
And this does NOT look better. Comments would be nice here.
And it can divide by zero...
+ fread(pix, 1, 3, G.theme_file);
This was making it slow. Zillions of 3-byte reads...
with this fixed, it finally works as expected -
displays 640x480 image in qemu in a blink of an eye.
I edited it a lot and going to apply attached patch to svn.
NB: I renamed it "fbsplash", and changed command line handling.
If fifo is not specified, there will be no fifo at all.
If fifo is "-", stdin is used. fifo is not created -
user have to use mkfifo first if they need it.
There is no default ini file now. Added option "-s IMAGEFILE",
so that it can be used just for displaying an image on fb dev.
Debug output file will be created in /tmp, not /dev.
Now we need testers with real small and slow embedded devices.
--
vda
diff -d -urpN busybox.0/include/applets.h busybox.1/include/applets.h
--- busybox.0/include/applets.h 2008-03-24 15:42:09.000000000 +0100
+++ busybox.1/include/applets.h 2008-03-26 10:43:48.000000000 +0100
@@ -149,6 +149,7 @@ USE_EXPR(APPLET(expr, _BB_DIR_USR_BIN, _
USE_FAKEIDENTD(APPLET(fakeidentd, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_FALSE(APPLET_NOFORK(false, false, _BB_DIR_BIN, _BB_SUID_NEVER, false))
USE_FBSET(APPLET(fbset, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
+USE_FBSPLASH(APPLET(fbsplash, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_FDFLUSH(APPLET_ODDNAME(fdflush, freeramdisk, _BB_DIR_BIN, _BB_SUID_NEVER, fdflush))
USE_FDFORMAT(APPLET(fdformat, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_FDISK(APPLET(fdisk, _BB_DIR_SBIN, _BB_SUID_NEVER))
diff -d -urpN busybox.0/include/usage.h busybox.1/include/usage.h
--- busybox.0/include/usage.h 2008-03-25 17:36:52.000000000 +0100
+++ busybox.1/include/usage.h 2008-03-26 14:06:31.000000000 +0100
@@ -120,6 +120,17 @@
"$ basename /foo/bar.txt .txt\n" \
"bar"
+#define fbsplash_trivial_usage \
+ "[-c] [-d DEV] [-s IMGFILE] [-i INIFILE] [-f CMD]"
+#define fbsplash_full_usage \
+ "Options:\n" \
+ "\n -c Hide cursor" \
+ "\n -d Framebuffer device (default /dev/fb0)" \
+ "\n -s Splash image" \
+ "\n -i Config file" \
+ "\n -f Control pipe (else exit after drawing image)" \
+ "\n commands: 'NN' (% for progressbar) or 'exit'" \
+
#define brctl_trivial_usage \
"COMMAND [BRIDGE [INTERFACE]]"
#define brctl_full_usage \
diff -d -urpN busybox.0/libbb/lineedit.c busybox.1/libbb/lineedit.c
--- busybox.0/libbb/lineedit.c 2008-03-24 15:42:06.000000000 +0100
+++ busybox.1/libbb/lineedit.c 2008-03-26 12:12:04.000000000 +0100
@@ -958,14 +958,16 @@ static void load_history(const char *fro
FILE *fp;
int hi;
- /* cleanup old */
- for (hi = state->cnt_history; hi > 0;) {
- hi--;
- free(state->history[hi]);
- }
+ /* NB: do not trash old history if file can't be opened */
fp = fopen(fromfile, "r");
if (fp) {
+ /* clean up old history */
+ for (hi = state->cnt_history; hi > 0;) {
+ hi--;
+ free(state->history[hi]);
+ }
+
for (hi = 0; hi < MAX_HISTORY;) {
char *hl = xmalloc_getline(fp);
int l;
@@ -982,8 +984,8 @@ static void load_history(const char *fro
state->history[hi++] = hl;
}
fclose(fp);
+ state->cur_history = state->cnt_history = hi;
}
- state->cur_history = state->cnt_history = hi;
}
/* state->flags is already checked to be nonzero */
diff -d -urpN busybox.0/miscutils/Config.in busybox.1/miscutils/Config.in
--- busybox.0/miscutils/Config.in 2008-03-24 15:42:08.000000000 +0100
+++ busybox.1/miscutils/Config.in 2008-03-26 14:08:19.000000000 +0100
@@ -194,12 +194,33 @@ config EJECT
Used to eject cdroms. (defaults to /dev/cdrom)
config FEATURE_EJECT_SCSI
- bool "SCSI support"
- default n
- depends on EJECT
- help
- Add the -s option to eject, this allows to eject SCSI-Devices and
- usb-storage devices.
+ bool "SCSI support"
+ default n
+ depends on EJECT
+ help
+ Add the -s option to eject, this allows to eject SCSI-Devices and
+ usb-storage devices.
+
+config FBSPLASH
+ bool "fbsplash"
+ default n
+ help
+ Shows splash image and progress bar on framebuffer device.
+ Can be used during boot phase of an embedded device. ~2kb.
+ Usage:
+ - use kernel option 'vga=xxx' or otherwise enable fb device.
+ - put somewhere the fbsplash.ini file and image in .ppm format.
+ - $ setsid fbsplash [params] &
+ -c: hide cursor
+ -d /dev/fbN: framebuffer device (if not /dev/fb0)
+ -s path_of_image_file
+ -i path_of_ini_file
+ -f path_of_fifo (can be "-" for stdin)
+ - if you want to run applet only in presence of kernel parameter:
+ grep -q "fbsplash=on" </proc/cmdline && setsid fbsplash [params] &
+ - commands for fifo:
+ "NN" (ASCII decimal number) - percentage to show on progress bar
+ "exit" (or just close fifo) - well you guessed it
config LAST
bool "last"
diff -d -urpN busybox.0/miscutils/fbsplash.c busybox.1/miscutils/fbsplash.c
--- busybox.0/miscutils/fbsplash.c 1970-01-01 01:00:00.000000000 +0100
+++ busybox.1/miscutils/fbsplash.c 2008-03-26 14:08:04.000000000 +0100
@@ -0,0 +1,446 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * splash implementation for busybox
+ *
+ * Copyright (C) 2008 Michele Sanges <[EMAIL PROTECTED]>,
+ * <[EMAIL PROTECTED]>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ * Usage:
+ * - use kernel option 'vga=xxx' or otherwise enable framebuffer device.
+ * - put somewhere the fbsplash.ini file and image in .ppm format.
+ * - configure applet by editing .ini file.
+ * - run applet: $ setsid fbsplash [params] &
+ * -c: hide cursor
+ * -d /dev/fbN: framebuffer device (if not /dev/fb0)
+ * -s path_of_image_file
+ * -i path_of_ini_file
+ * -f path_of_fifo (can be "-" for stdin)
+ * - if you want to run the applet only in presence of a kernel parameter
+ * (for example fbsplash=on), type:
+ * grep -q "fbsplash=on" </proc/cmdline && setsid fbsplash [params]
+ * - commands for fifo:
+ * "NN" (ASCII decimal number) - percentage to show on progress bar.
+ * "exit" (or just close fifo) - well you guessed it.
+ */
+
+/**
+ * Splash implementation for busybox
+ * \file: fbsplash.c
+ * \author Michele Sanges <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
+ * \version 1.0.0
+ * \date 07/03/2008
+ */
+
+#include "libbb.h"
+#include <linux/fb.h>
+
+/* If you want logging messages on /tmp/fbsplash_log... */
+#define DEBUG 0
+#define BYTES_PER_PIXEL 2
+
+typedef unsigned short DATA;
+
+struct globals {
+#if DEBUG
+ bool bdebug_messages; // enable/disable logging
+ FILE *logfile_fd; // log file
+#endif
+ unsigned char *addr; // pointer to framebuffer memory
+ int fbfd; // descriptor of framebuffer device
+ unsigned nbar_width; // progress bar width
+ unsigned nbar_height; // progress bar height
+ unsigned nbar_posx; // progress bar horizontal position
+ unsigned nbar_posy; // progress bar vertical position
+ unsigned char nbar_colr; // progress bar color red component
+ unsigned char nbar_colg; // progress bar color green component
+ unsigned char nbar_colb; // progress bar color blue component
+ const char *image_filename;
+ struct fb_var_screeninfo scr_var;
+ struct fb_fix_screeninfo scr_fix;
+};
+#define G (*ptr_to_globals)
+#define INIT_G() \
+ do { \
+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+ } while (0)
+
+
+#if DEBUG
+#define DEBUG_MESSAGE(strMessage, args...) \
+ if (G.bdebug_messages) { \
+ fprintf(G.logfile_fd, "[%s][%s] - %s\n", \
+ __FILE__, __FUNCTION__, strMessage); \
+ }
+#else
+#define DEBUG_MESSAGE(...) ((void)0)
+#endif
+
+
+/**
+ * Open and initialize the framebuffer device
+ * \param *strfb_device pointer to framebuffer device
+ */
+static void fb_open(const char *strfb_device)
+{
+ G.fbfd = xopen(strfb_device, O_RDWR);
+
+ // framebuffer properties
+ xioctl(G.fbfd, FBIOGET_VSCREENINFO, &G.scr_var);
+ xioctl(G.fbfd, FBIOGET_FSCREENINFO, &G.scr_fix);
+
+ if (G.scr_var.bits_per_pixel != 16)
+ bb_error_msg_and_die("only 16 bpp is supported");
+
+ // map the device in memory
+ G.addr = mmap(NULL,
+ G.scr_var.xres * G.scr_var.yres
+ * 2 /*(G.scr_var.bits_per_pixel / 8)*/ ,
+ PROT_WRITE, MAP_SHARED, G.fbfd, 0);
+ if (G.addr == MAP_FAILED)
+ bb_perror_msg_and_die("can't mmap %s", strfb_device);
+}
+
+
+/**
+ * Draw hollow rectangle on framebuffer
+ * \param nx1pos,ny1pos upper left position
+ * \param nx2pos,ny2pos down right position
+ * \param nred24,ngreen24,nblue24 rgb color
+ */
+static void fb_drawrectangle(int nx1pos, int ny1pos, int nx2pos, int ny2pos,
+ unsigned char nred, unsigned char ngreen, unsigned char nblue)
+{
+ int cnt;
+ DATA thispix;
+ DATA *ptr1, *ptr2;
+
+ nred >>= 3; // 5-bit red
+ ngreen >>= 2; // 6-bit green
+ nblue >>= 3; // 5-bit blue
+ thispix = nblue + (ngreen << 5) + (nred << (5+6));
+
+ // horizontal lines
+ ptr1 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
+ ptr2 = (DATA*)(G.addr + (ny2pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
+ cnt = nx2pos - nx1pos;
+ do {
+ *ptr1++ = thispix;
+ *ptr2++ = thispix;
+ } while (--cnt >= 0);
+
+ // vertical lines
+ ptr1 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
+ ptr2 = (DATA*)(G.addr + (ny1pos * G.scr_var.xres + nx2pos) * BYTES_PER_PIXEL);
+ cnt = ny2pos - ny1pos;
+ do {
+ *ptr1 = thispix; ptr1 += G.scr_var.xres;
+ *ptr2 = thispix; ptr2 += G.scr_var.xres;
+ } while (--cnt >= 0);
+}
+
+
+/**
+ * Draw filled rectangle on framebuffer
+ * \param nx1pos,ny1pos upper left position
+ * \param nx2pos,ny2pos down right position
+ * \param nred24,ngreen24,nblue24 rgb color
+ */
+static void fb_drawfullrectangle(int nx1pos, int ny1pos, int nx2pos, int ny2pos,
+ unsigned char nred, unsigned char ngreen, unsigned char nblue)
+{
+ int cnt1, cnt2, nypos;
+ DATA thispix;
+ DATA *ptr;
+
+ nred >>= 3; // 5-bit red
+ ngreen >>= 2; // 6-bit green
+ nblue >>= 3; // 5-bit blue
+ thispix = nblue + (ngreen << 5) + (nred << (5+6));
+
+ cnt1 = ny2pos - ny1pos;
+ nypos = ny1pos;
+ do {
+ ptr = (DATA*)(G.addr + (nypos * G.scr_var.xres + nx1pos) * BYTES_PER_PIXEL);
+ cnt2 = nx2pos - nx1pos;
+ do {
+ *ptr++ = thispix;
+ } while (--cnt2 >= 0);
+
+ nypos++;
+ } while(--cnt1 >= 0);
+}
+
+
+/**
+ * Draw a progress bar on framebuffer
+ * \param nPercent percentage of loading
+ */
+static void fb_drawprogressbar(unsigned nPercent)
+{
+ int i, left_x, top_y, width, height;
+
+ // outer box
+ left_x = G.nbar_posx;
+ top_y = G.nbar_posy;
+ width = G.nbar_width - 1;
+ height = G.nbar_height - 1;
+ if ((height | width) < 0)
+ return;
+ // NB: "width" of 1 actually makes rect with width of 2!
+ fb_drawrectangle(
+ left_x, top_y,
+ left_x + width, top_y + height,
+ G.nbar_colr/2, G.nbar_colg/2, G.nbar_colb/2);
+
+ // inner "empty" rectangle
+ left_x++;
+ top_y++;
+ width -= 2;
+ height -= 2;
+ if ((height | width) < 0)
+ return;
+ fb_drawfullrectangle(
+ left_x, top_y,
+ left_x + width, top_y + height,
+ G.nbar_colr, G.nbar_colg, G.nbar_colb);
+
+ if (nPercent > 0) {
+ // actual progress bar
+ width = width*nPercent/100;
+ i = height;
+ if (height == 0)
+ height++; // divide by 0 is bad
+ while (i >= 0) {
+ // draw one-line thick "rectangle"
+ // top line will have gray lvl 200, bottom one 100
+ unsigned gray_level = 100 + i*100/height;
+ fb_drawfullrectangle(
+ left_x, top_y, left_x + width, top_y,
+ gray_level, gray_level, gray_level);
+ top_y++;
+ i--;
+ }
+ }
+}
+
+
+/**
+ * Draw image from PPM file
+ */
+static void fb_drawimage(void)
+{
+ char head[256];
+ char s[80];
+ FILE *theme_file;
+ unsigned char *pixline;
+ unsigned i, j, width, height, line_size;
+
+ memset(head, 0, sizeof(head));
+ theme_file = xfopen(G.image_filename, "r");
+
+ // parse ppm header
+ while (1) {
+ if (fgets(s, sizeof(s), theme_file) == NULL)
+ bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+
+ if (s[0] == '#')
+ continue;
+
+ if (strlen(head) + strlen(s) >= sizeof(head))
+ bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+
+ strcat(head, s);
+ if (head[0] != 'P' || head[1] != '6')
+ bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+
+ // width, height, max_color_val
+ if (sscanf(head, "P6 %u %u %u", &width, &height, &i) == 3)
+ break;
+// TODO: i must be <= 255!
+ }
+
+ line_size = width*3;
+ if (width > G.scr_var.xres)
+ width = G.scr_var.xres;
+ if (height > G.scr_var.yres)
+ height = G.scr_var.yres;
+
+ pixline = xmalloc(line_size);
+ for (j = 0; j < height; j++) {
+ unsigned char *pixel = pixline;
+ DATA *src = (DATA *)(G.addr + j * G.scr_fix.line_length);
+
+ if (fread(pixline, 1, line_size, theme_file) != line_size)
+ bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+ for (i = 0; i < width; i++) {
+ unsigned thispix;
+ thispix = (((unsigned)pixel[0] << 8) & 0xf800)
+ | (((unsigned)pixel[1] << 3) & 0x07e0)
+ | (((unsigned)pixel[2] >> 3));
+ *src++ = thispix;
+ pixel += 3;
+ }
+ }
+ free(pixline);
+ fclose(theme_file);
+}
+
+
+/**
+ * Parse configuration file
+ */
+static void init(const char *ini_filename)
+{
+ static const char const param_value[] ALIGN1 =
+ "DEBUG_MESSAGES\0""SPLASH_THEME\0""BAR_WIDTH\0""BAR_HEIGHT\0"
+ "BAR_POS_X\0""BAR_POS_Y\0""BAR_R_COL\0""BAR_G_COL\0""BAR_B_COL\0";
+
+ FILE *inifile;
+ char *buf;
+
+ inifile = xfopen(ini_filename, "r");
+
+ while ((buf = xmalloc_getline(inifile)) != NULL) {
+ char *pvalue;
+ int nindex;
+
+ if (*buf == '#') { // it's a comment
+ free(buf);
+ continue;
+ }
+
+ pvalue = strchrnul(buf, '=');
+ if (*pvalue) *pvalue++ = '\0';
+
+ nindex = index_in_strings(param_value, buf);
+
+ switch(nindex) {
+ case 0:
+#if DEBUG
+ G.bdebug_messages = (strcmp(pvalue, "ON") == 0);
+ if (G.bdebug_messages)
+ G.logfile_fd = xfopen("/tmp/fbsplash_log", "w");
+#endif
+ break;
+ case 1:
+ // name of the splash theme
+ G.image_filename = pvalue;
+ break;
+ case 2:
+ // progress bar width
+ G.nbar_width = xatoi_u(pvalue);
+ break;
+ case 3:
+ // progress bar height
+ G.nbar_height = xatoi_u(pvalue);
+ break;
+ case 4:
+ // progress bar orizzontal position
+ G.nbar_posx = xatoi_u(pvalue);
+ break;
+ case 5:
+ // progress bar vertical position
+ G.nbar_posy = xatoi_u(pvalue);
+ break;
+ case 6:
+ // progress bar color - red component
+ G.nbar_colr = xatoi_u(pvalue);
+ break;
+ case 7:
+ // progress bar color - green component
+ G.nbar_colg = xatoi_u(pvalue);
+ break;
+ case 8:
+ // progress bar color - blue component
+ G.nbar_colb = xatoi_u(pvalue);
+ break;
+ }
+ free(buf);
+ }
+ fclose(inifile);
+}
+
+
+int fbsplash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int fbsplash_main(int argc ATTRIBUTE_UNUSED, char **argv)
+{
+ char num_buf[16];
+ const char *fb_device, *ini_filename, *fifo_filename;
+ int fd = fd; // for compiler
+ int len, num;
+ bool bCursorOff;
+
+ INIT_G();
+
+ // parse command line options
+ fb_device = "/dev/fb0";
+ ini_filename = NULL;
+ fifo_filename = NULL;
+ bCursorOff = 1 & getopt32(argv, "cd:s:i:f:",
+ &fb_device, &G.image_filename, &ini_filename, &fifo_filename);
+
+ // parse configuration file
+ if (ini_filename)
+ init(ini_filename);
+
+ // if neither -s IMG nor config file gave us image...
+ if (!G.image_filename)
+ bb_show_usage();
+
+ if (fifo_filename) {
+ fd = STDIN_FILENO;
+ if (NOT_LONE_DASH(fifo_filename)) {
+ // open command fifo/pipe
+ fd = xopen(fifo_filename, O_RDONLY | O_NOCTTY);
+ }
+ if (bCursorOff) {
+ // hide cursor (BEFORE any fb ops)
+ full_write(STDOUT_FILENO, "\x1b" "[?25l", 6);
+ }
+ }
+
+ fb_open(fb_device);
+ fb_drawimage();
+
+ if (fifo_filename) {
+ num = 0;
+ goto draw_bar;
+ while (1) {
+ // block on read, waiting for some input
+ len = safe_read(fd, num_buf, sizeof(num_buf) - 1);
+ if (len <= 0) // EOF/error
+ break;
+ num_buf[len] = '\0';
+ // parse command
+ if (strncmp(num_buf, "exit", 4) == 0) {
+ DEBUG_MESSAGE("exit");
+ break;
+ }
+ num = atoi(num_buf);
+ if (isdigit(num_buf[0]) && (num >= 0) && (num <= 100)) {
+#if DEBUG
+ char strVal[10];
+ sprintf(strVal, "%d", num);
+ DEBUG_MESSAGE(strVal);
+#endif
+ draw_bar:
+ fb_drawprogressbar(num);
+ }
+ }
+ if (bCursorOff) {
+ // restore cursor
+ full_write(STDOUT_FILENO, "\x1b" "[?25h", 6);
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(fd);
+ }
+
+#if DEBUG
+ if (G.bdebug_messages)
+ fclose(G.logfile_fd);
+#endif
+
+ return EXIT_SUCCESS;
+}
diff -d -urpN busybox.0/miscutils/fbsplash.ini busybox.1/miscutils/fbsplash.ini
--- busybox.0/miscutils/fbsplash.ini 1970-01-01 01:00:00.000000000 +0100
+++ busybox.1/miscutils/fbsplash.ini 2008-03-26 14:06:45.000000000 +0100
@@ -0,0 +1,18 @@
+# debug messages: ON or OFF
+DEBUG_MESSAGES=OFF
+# splash theme
+SPLASH_THEME=splash.ppm
+# progress bar width
+BAR_WIDTH=300
+# progress bar height
+BAR_HEIGHT=20
+# progress bar horizontal position
+BAR_POS_X=170
+# progress bar vertical position
+BAR_POS_Y=300
+# progress bar colour red component
+BAR_R_COL=80
+# progress bar colour green component
+BAR_G_COL=80
+# progress bar colour blue component
+BAR_B_COL=130
diff -d -urpN busybox.0/miscutils/Kbuild busybox.1/miscutils/Kbuild
--- busybox.0/miscutils/Kbuild 2008-03-24 15:42:08.000000000 +0100
+++ busybox.1/miscutils/Kbuild 2008-03-26 10:44:29.000000000 +0100
@@ -14,6 +14,7 @@ lib-$(CONFIG_CRONTAB) += crontab.o
lib-$(CONFIG_DC) += dc.o
lib-$(CONFIG_DEVFSD) += devfsd.o
lib-$(CONFIG_EJECT) += eject.o
+lib-$(CONFIG_FBSPLASH) += fbsplash.o
lib-$(CONFIG_HDPARM) += hdparm.o
lib-$(CONFIG_LAST) += last.o
lib-$(CONFIG_LESS) += less.o
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