From 942f123dce1f36144b200731df7abfd3dbc92f22 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timo=20Ter=C3=A4s?= Date: Fri, 21 Nov 2014 16:06:34 +0200 Subject: [PATCH 06/15] fbsplash: support image and bar alignment and positioning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Timo Teräs --- miscutils/fbsplash.c | 91 +++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 76 insertions(+), 15 deletions(-) diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c index aaaca39..ea0dc22 100644 --- a/miscutils/fbsplash.c +++ b/miscutils/fbsplash.c @@ -28,6 +28,7 @@ //usage: "\n -c Hide cursor" //usage: "\n -d Framebuffer device (default /dev/fb0)" //usage: "\n -i Config file (var=value):" +//usage: "\n IMAGE_ALIGN" //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)" @@ -46,13 +47,38 @@ /* If you want logging messages on /tmp/fbsplash.log... */ #define DEBUG 0 +enum { + image_align, + + image_posx, + image_posy, + bar_width, + bar_height, + bar_posx, + bar_posy, + bar_colr, + bar_colg, + bar_colb, + + debug +}; + +#define nimage_align ns[image_align] +#define nbar_width ns[bar_width] +#define nbar_height ns[bar_height] +#define nbar_posx ns[bar_posx] +#define nbar_posy ns[bar_posy] +#define nbar_colr ns[bar_colr] +#define nbar_colg ns[bar_colg] +#define nbar_colb ns[bar_colb] + 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 + unsigned ns[debug+1]; // n-parameters const char *image_filename; int silent_tty, fd_tty_s; bool do_not_draw; @@ -69,14 +95,6 @@ struct globals { 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) { \ @@ -357,7 +375,7 @@ static void fb_drawimage(void) FILE *theme_file; char *read_ptr; unsigned char *pixline; - unsigned i, j, width, height, line_size; + int i, j, width, height, line_size, xoffs, yoffs, xstart; if (LONE_DASH(G.image_filename)) { theme_file = stdin; @@ -407,18 +425,46 @@ static void fb_drawimage(void) line_size = width*3; pixline = xmalloc(line_size); +#if 0 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++) { +#endif + + xoffs = yoffs = 0; + switch (G.nimage_align % 3) { + case 1: xoffs = (G.scr_var.xres - width) / 2; break; + case 2: xoffs = G.scr_var.xres - width; break; + } + xstart = 0; + if (xoffs < 0) { + xstart = -xoffs; + width -= xstart; + xoffs = 0; + } + xoffs *= G.bytes_per_pixel; + if (width > G.scr_var.xres) + width = G.scr_var.xres; + + switch (G.nimage_align / 3) { + case 1: yoffs = (G.scr_var.yres - height) / 2; break; + case 2: yoffs = G.scr_var.yres - height; break; + } + + for (j = 0; j < height && yoffs < G.scr_var.yres; j++, yoffs++) { 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); + + if (yoffs < 0) + continue; + pixel = pixline; - src = G.addr + j * G.scr_fix.line_length; + src = G.addr + yoffs * G.scr_fix.line_length + xoffs; + for (i = 0; i < width; i++) { unsigned thispix = fb_pixel_value(pixel[0], pixel[1], pixel[2]); fb_write_pixel(src, thispix); @@ -437,9 +483,17 @@ static void fb_drawimage(void) */ static void init(const char *cfg_filename) { + static const char align_names[] ALIGN1 = + "LT\0" "CT\0" "RT\0" + "LM\0" "CM\0" "RM\0" + "LB\0" "CB\0" "RB\0"; static const char param_names[] ALIGN1 = + "IMAGE_ALIGN\0" + + "IMAGE_X\0" "IMAGE_Y\0" "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" @@ -449,14 +503,21 @@ static void init(const char *cfg_filename) 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]); + unsigned val; 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) + + if (i <= image_align) + val = index_in_strings(align_names, token[1]); + else + val = xatoi_positive(token[1]); + + if (i < debug) G.ns[i] = val; #if DEBUG - if (i == 7) { + if (i == debug) { G.bdebug_messages = val; if (G.bdebug_messages) G.logfile_fd = xfopen_for_write("/tmp/fbsplash.log"); -- 2.9.1