[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/miscutils/fbsplash.c b/ap/app/busybox/src/miscutils/fbsplash.c
new file mode 100644
index 0000000..12a77b7
--- /dev/null
+++ b/ap/app/busybox/src/miscutils/fbsplash.c
@@ -0,0 +1,537 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2008 Michele Sanges <michele.sanges@gmail.com>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ *
+ * Usage:
+ * - use kernel option 'vga=xxx' or otherwise enable framebuffer device.
+ * - put somewhere fbsplash.cfg file and an image in .ppm format.
+ * - run applet: $ setsid fbsplash [params] &
+ *      -c: hide cursor
+ *      -d /dev/fbN: framebuffer device (if not /dev/fb0)
+ *      -s path_to_image_file (can be "-" for stdin)
+ *      -i path_to_cfg_file
+ *      -f path_to_fifo (can be "-" for stdin)
+ * - if you want to run it only in presence of a kernel parameter
+ *   (for example fbsplash=on), use:
+ *   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.
+ */
+
+//usage:#define fbsplash_trivial_usage
+//usage:       "-s IMGFILE [-c] [-d DEV] [-i INIFILE] [-f CMD]"
+//usage:#define fbsplash_full_usage "\n\n"
+//usage:       "	-s	Image"
+//usage:     "\n	-c	Hide cursor"
+//usage:     "\n	-d	Framebuffer device (default /dev/fb0)"
+//usage:     "\n	-i	Config file (var=value):"
+//usage:     "\n			BAR_LEFT,BAR_TOP,BAR_WIDTH,BAR_HEIGHT"
+//usage:     "\n			BAR_R,BAR_G,BAR_B"
+//usage:     "\n	-f	Control pipe (else exit after drawing image)"
+//usage:     "\n			commands: 'NN' (% for progress bar) or 'exit'"
+
+#include "libbb.h"
+#include <linux/fb.h>
+
+/* If you want logging messages on /tmp/fbsplash.log... */
+#define DEBUG 0
+
+struct globals {
+#if DEBUG
+	bool bdebug_messages;	// enable/disable logging
+	FILE *logfile_fd;	// log file
+#endif
+	unsigned char *addr;	// pointer to framebuffer memory
+	unsigned ns[7];		// n-parameters
+	const char *image_filename;
+	struct fb_var_screeninfo scr_var;
+	struct fb_fix_screeninfo scr_fix;
+	unsigned bytes_per_pixel;
+	// cached (8 - scr_var.COLOR.length):
+	unsigned red_shift;
+	unsigned green_shift;
+	unsigned blue_shift;
+};
+#define G (*ptr_to_globals)
+#define INIT_G() do { \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+} while (0)
+
+#define nbar_width	ns[0]	// progress bar width
+#define nbar_height	ns[1]	// progress bar height
+#define nbar_posx	ns[2]	// progress bar horizontal position
+#define nbar_posy	ns[3]	// progress bar vertical position
+#define nbar_colr	ns[4]	// progress bar color red component
+#define nbar_colg	ns[5]	// progress bar color green component
+#define nbar_colb	ns[6]	// progress bar color blue component
+
+#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
+
+/**
+ * Configure palette for RGB:332
+ */
+static void fb_setpal(int fd)
+{
+	struct fb_cmap cmap;
+	/* fb colors are 16 bit */
+	unsigned short red[256], green[256], blue[256];
+	unsigned i;
+
+	/* RGB:332 */
+	for (i = 0; i < 256; i++) {
+		/* Color is encoded in pixel value as rrrgggbb.
+		 * 3-bit color is mapped to 16-bit one as:
+		 * 000 -> 00000000 00000000
+		 * 001 -> 00100100 10010010
+		 * ...
+		 * 011 -> 01101101 10110110
+		 * 100 -> 10010010 01001001
+		 * ...
+		 * 111 -> 11111111 11111111
+		 */
+		red[i]   = (( i >> 5       ) * 0x9249) >> 2; // rrr * 00 10010010 01001001 >> 2
+		green[i] = (((i >> 2) & 0x7) * 0x9249) >> 2; // ggg * 00 10010010 01001001 >> 2
+		/* 2-bit color is easier: */
+		blue[i]  =  ( i       & 0x3) * 0x5555; // bb * 01010101 01010101
+	}
+
+	cmap.start = 0;
+	cmap.len   = 256;
+	cmap.red   = red;
+	cmap.green = green;
+	cmap.blue  = blue;
+	cmap.transp = 0;
+
+	xioctl(fd, FBIOPUTCMAP, &cmap);
+}
+
+/**
+ * Open and initialize the framebuffer device
+ * \param *strfb_device pointer to framebuffer device
+ */
+static void fb_open(const char *strfb_device)
+{
+	int fbfd = xopen(strfb_device, O_RDWR);
+
+	// framebuffer properties
+	xioctl(fbfd, FBIOGET_VSCREENINFO, &G.scr_var);
+	xioctl(fbfd, FBIOGET_FSCREENINFO, &G.scr_fix);
+
+	switch (G.scr_var.bits_per_pixel) {
+	case 8:
+		fb_setpal(fbfd);
+		break;
+
+	case 16:
+	case 24:
+	case 32:
+		break;
+
+	default:
+		bb_error_msg_and_die("unsupported %u bpp", (int)G.scr_var.bits_per_pixel);
+		break;
+	}
+
+	G.red_shift   = 8 - G.scr_var.red.length;
+	G.green_shift = 8 - G.scr_var.green.length;
+	G.blue_shift  = 8 - G.scr_var.blue.length;
+	G.bytes_per_pixel = (G.scr_var.bits_per_pixel + 7) >> 3;
+
+	// map the device in memory
+	G.addr = mmap(NULL,
+			G.scr_var.yres * G.scr_fix.line_length,
+			PROT_WRITE, MAP_SHARED, fbfd, 0);
+	if (G.addr == MAP_FAILED)
+		bb_perror_msg_and_die("mmap");
+
+	// point to the start of the visible screen
+	G.addr += G.scr_var.yoffset * G.scr_fix.line_length + G.scr_var.xoffset * G.bytes_per_pixel;
+	close(fbfd);
+}
+
+
+/**
+ * Return pixel value of the passed RGB color.
+ * This is performance critical fn.
+ */
+static unsigned fb_pixel_value(unsigned r, unsigned g, unsigned b)
+{
+	/* We assume that the r,g,b values are <= 255 */
+
+	if (G.bytes_per_pixel == 1) {
+		r = r        & 0xe0; // 3-bit red
+		g = (g >> 3) & 0x1c; // 3-bit green
+		b =  b >> 6;         // 2-bit blue
+		return r + g + b;
+	}
+	if (G.bytes_per_pixel == 2) {
+		// ARM PL110 on Integrator/CP has RGBA5551 bit arrangement.
+		// We want to support bit locations like that.
+		//
+		// First shift out unused bits
+		r = r >> G.red_shift;
+		g = g >> G.green_shift;
+		b = b >> G.blue_shift;
+		// Then shift the remaining bits to their offset
+		return (r << G.scr_var.red.offset) +
+			(g << G.scr_var.green.offset) +
+			(b << G.scr_var.blue.offset);
+	}
+	// RGB 888
+	return b + (g << 8) + (r << 16);
+}
+
+/**
+ * Draw pixel on framebuffer
+ */
+static void fb_write_pixel(unsigned char *addr, unsigned pixel)
+{
+	switch (G.bytes_per_pixel) {
+	case 1:
+		*addr = pixel;
+		break;
+	case 2:
+		*(uint16_t *)addr = pixel;
+		break;
+	case 4:
+		*(uint32_t *)addr = pixel;
+		break;
+	default: // 24 bits per pixel
+		addr[0] = pixel;
+		addr[1] = pixel >> 8;
+		addr[2] = pixel >> 16;
+	}
+}
+
+
+/**
+ * Draw hollow rectangle on framebuffer
+ */
+static void fb_drawrectangle(void)
+{
+	int cnt;
+	unsigned thispix;
+	unsigned char *ptr1, *ptr2;
+	unsigned char nred = G.nbar_colr/2;
+	unsigned char ngreen =  G.nbar_colg/2;
+	unsigned char nblue = G.nbar_colb/2;
+
+	thispix = fb_pixel_value(nred, ngreen, nblue);
+
+	// horizontal lines
+	ptr1 = G.addr + G.nbar_posy * G.scr_fix.line_length + G.nbar_posx * G.bytes_per_pixel;
+	ptr2 = G.addr + (G.nbar_posy + G.nbar_height - 1) * G.scr_fix.line_length + G.nbar_posx * G.bytes_per_pixel;
+	cnt = G.nbar_width - 1;
+	do {
+		fb_write_pixel(ptr1, thispix);
+		fb_write_pixel(ptr2, thispix);
+		ptr1 += G.bytes_per_pixel;
+		ptr2 += G.bytes_per_pixel;
+	} while (--cnt >= 0);
+
+	// vertical lines
+	ptr1 = G.addr + G.nbar_posy * G.scr_fix.line_length + G.nbar_posx * G.bytes_per_pixel;
+	ptr2 = G.addr + G.nbar_posy * G.scr_fix.line_length + (G.nbar_posx + G.nbar_width - 1) * G.bytes_per_pixel;
+	cnt = G.nbar_height - 1;
+	do {
+		fb_write_pixel(ptr1, thispix);
+		fb_write_pixel(ptr2, thispix);
+		ptr1 += G.scr_fix.line_length;
+		ptr2 += G.scr_fix.line_length;
+	} while (--cnt >= 0);
+}
+
+
+/**
+ * Draw filled rectangle on framebuffer
+ * \param nx1pos,ny1pos upper left position
+ * \param nx2pos,ny2pos down right position
+ * \param nred,ngreen,nblue 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;
+	unsigned thispix;
+	unsigned char *ptr;
+
+	thispix = fb_pixel_value(nred, ngreen, nblue);
+
+	cnt1 = ny2pos - ny1pos;
+	nypos = ny1pos;
+	do {
+		ptr = G.addr + nypos * G.scr_fix.line_length + nx1pos * G.bytes_per_pixel;
+		cnt2 = nx2pos - nx1pos;
+		do {
+			fb_write_pixel(ptr, thispix);
+			ptr += G.bytes_per_pixel;
+		} while (--cnt2 >= 0);
+
+		nypos++;
+	} while (--cnt1 >= 0);
+}
+
+
+/**
+ * Draw a progress bar on framebuffer
+ * \param percent percentage of loading
+ */
+static void fb_drawprogressbar(unsigned percent)
+{
+	int left_x, top_y, pos_x;
+	unsigned 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 ((int)(height | width) < 0)
+		return;
+	// NB: "width" of 1 actually makes rect with width of 2!
+	fb_drawrectangle();
+
+	// inner "empty" rectangle
+	left_x++;
+	top_y++;
+	width -= 2;
+	height -= 2;
+	if ((int)(height | width) < 0)
+		return;
+
+	pos_x = left_x;
+	if (percent > 0) {
+		int i, y;
+
+		// actual progress bar
+		pos_x += (unsigned)(width * percent) / 100;
+
+		y = top_y;
+		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 + (unsigned)i*100 / height;
+			fb_drawfullrectangle(
+					left_x, y, pos_x, y,
+					gray_level, gray_level, gray_level);
+			y++;
+			i--;
+		}
+	}
+
+	fb_drawfullrectangle(
+			pos_x, top_y,
+			left_x + width, top_y + height,
+			G.nbar_colr, G.nbar_colg, G.nbar_colb);
+}
+
+
+/**
+ * Draw image from PPM file
+ */
+static void fb_drawimage(void)
+{
+	FILE *theme_file;
+	char *read_ptr;
+	unsigned char *pixline;
+	unsigned i, j, width, height, line_size;
+
+	if (LONE_DASH(G.image_filename)) {
+		theme_file = stdin;
+	} else {
+		int fd = open_zipped(G.image_filename);
+		if (fd < 0)
+			bb_simple_perror_msg_and_die(G.image_filename);
+		theme_file = xfdopen_for_read(fd);
+	}
+
+	/* Parse ppm header:
+	 * - Magic: two characters "P6".
+	 * - Whitespace (blanks, TABs, CRs, LFs).
+	 * - A width, formatted as ASCII characters in decimal.
+	 * - Whitespace.
+	 * - A height, ASCII decimal.
+	 * - Whitespace.
+	 * - The maximum color value, ASCII decimal, in 0..65535
+	 * - Newline or other single whitespace character.
+	 *   (we support newline only)
+	 * - A raster of Width * Height pixels in triplets of rgb
+	 *   in pure binary by 1 or 2 bytes. (we support only 1 byte)
+	 */
+#define concat_buf bb_common_bufsiz1
+	read_ptr = concat_buf;
+	while (1) {
+		int w, h, max_color_val;
+		int rem = concat_buf + sizeof(concat_buf) - read_ptr;
+		if (rem < 2
+		 || fgets(read_ptr, rem, theme_file) == NULL
+		) {
+			bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+		}
+		read_ptr = strchrnul(read_ptr, '#');
+		*read_ptr = '\0'; /* ignore #comments */
+		if (sscanf(concat_buf, "P6 %u %u %u", &w, &h, &max_color_val) == 3
+		 && max_color_val <= 255
+		) {
+			width = w; /* w is on stack, width may be in register */
+			height = h;
+			break;
+		}
+	}
+
+	line_size = width*3;
+	pixline = xmalloc(line_size);
+
+	if (width > G.scr_var.xres)
+		width = G.scr_var.xres;
+	if (height > G.scr_var.yres)
+		height = G.scr_var.yres;
+	for (j = 0; j < height; j++) {
+		unsigned char *pixel;
+		unsigned char *src;
+
+		if (fread(pixline, 1, line_size, theme_file) != line_size)
+			bb_error_msg_and_die("bad PPM file '%s'", G.image_filename);
+		pixel = pixline;
+		src = G.addr + j * G.scr_fix.line_length;
+		for (i = 0; i < width; i++) {
+			unsigned thispix = fb_pixel_value(pixel[0], pixel[1], pixel[2]);
+			fb_write_pixel(src, thispix);
+			src += G.bytes_per_pixel;
+			pixel += 3;
+		}
+	}
+	free(pixline);
+	fclose(theme_file);
+}
+
+
+/**
+ * Parse configuration file
+ * \param *cfg_filename name of the configuration file
+ */
+static void init(const char *cfg_filename)
+{
+	static const char param_names[] ALIGN1 =
+		"BAR_WIDTH\0" "BAR_HEIGHT\0"
+		"BAR_LEFT\0" "BAR_TOP\0"
+		"BAR_R\0" "BAR_G\0" "BAR_B\0"
+#if DEBUG
+		"DEBUG\0"
+#endif
+		;
+	char *token[2];
+	parser_t *parser = config_open2(cfg_filename, xfopen_stdin);
+	while (config_read(parser, token, 2, 2, "#=",
+				(PARSE_NORMAL | PARSE_MIN_DIE) & ~(PARSE_TRIM | PARSE_COLLAPSE))) {
+		unsigned val = xatoi_positive(token[1]);
+		int i = index_in_strings(param_names, token[0]);
+		if (i < 0)
+			bb_error_msg_and_die("syntax error: %s", token[0]);
+		if (i >= 0 && i < 7)
+			G.ns[i] = val;
+#if DEBUG
+		if (i == 7) {
+			G.bdebug_messages = val;
+			if (G.bdebug_messages)
+				G.logfile_fd = xfopen_for_write("/tmp/fbsplash.log");
+		}
+#endif
+	}
+	config_close(parser);
+}
+
+
+int fbsplash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int fbsplash_main(int argc UNUSED_PARAM, char **argv)
+{
+	const char *fb_device, *cfg_filename, *fifo_filename;
+	FILE *fp = fp; // for compiler
+	char *num_buf;
+	unsigned num;
+	bool bCursorOff;
+
+	INIT_G();
+
+	// parse command line options
+	fb_device = "/dev/fb0";
+	cfg_filename = NULL;
+	fifo_filename = NULL;
+	bCursorOff = 1 & getopt32(argv, "cs:d:i:f:",
+			&G.image_filename, &fb_device, &cfg_filename, &fifo_filename);
+
+	// parse configuration file
+	if (cfg_filename)
+		init(cfg_filename);
+
+	// We must have -s IMG
+	if (!G.image_filename)
+		bb_show_usage();
+
+	fb_open(fb_device);
+
+	if (fifo_filename && bCursorOff) {
+		// hide cursor (BEFORE any fb ops)
+		full_write(STDOUT_FILENO, "\033[?25l", 6);
+	}
+
+	fb_drawimage();
+
+	if (!fifo_filename)
+		return EXIT_SUCCESS;
+
+	fp = xfopen_stdin(fifo_filename);
+	if (fp != stdin) {
+		// For named pipes, we want to support this:
+		//  mkfifo cmd_pipe
+		//  fbsplash -f cmd_pipe .... &
+		//  ...
+		//  echo 33 >cmd_pipe
+		//  ...
+		//  echo 66 >cmd_pipe
+		// This means that we don't want fbsplash to get EOF
+		// when last writer closes input end.
+		// The simplest way is to open fifo for writing too
+		// and become an additional writer :)
+		open(fifo_filename, O_WRONLY); // errors are ignored
+	}
+
+	fb_drawprogressbar(0);
+	// Block on read, waiting for some input.
+	// Use of <stdio.h> style I/O allows to correctly
+	// handle a case when we have many buffered lines
+	// already in the pipe
+	while ((num_buf = xmalloc_fgetline(fp)) != NULL) {
+		if (strncmp(num_buf, "exit", 4) == 0) {
+			DEBUG_MESSAGE("exit");
+			break;
+		}
+		num = atoi(num_buf);
+		if (isdigit(num_buf[0]) && (num <= 100)) {
+#if DEBUG
+			DEBUG_MESSAGE(itoa(num));
+#endif
+			fb_drawprogressbar(num);
+		}
+		free(num_buf);
+	}
+
+	if (bCursorOff) // restore cursor
+		full_write(STDOUT_FILENO, "\033[?25h", 6);
+
+	return EXIT_SUCCESS;
+}