aboutsummaryrefslogtreecommitdiffstats
path: root/main/busybox/0006-fbsplash-support-image-and-bar-alignment-and-positio.patch
blob: b930cb1167f414ebcb4127b8c655e2012a8ad104 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
From 1dab8b58ff051d529fd3fd74caf6016e51b10ae3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Fri, 21 Nov 2014 16:06:34 +0200
Subject: [PATCH 06/12] 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 <timo.teras@iki.fi>
---
 miscutils/fbsplash.c | 91 +++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 76 insertions(+), 15 deletions(-)

diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c
index ec5947314..34bbf81f5 100644
--- a/miscutils/fbsplash.c
+++ b/miscutils/fbsplash.c
@@ -53,6 +53,7 @@
 //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)"
@@ -71,13 +72,38 @@
 /* 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;
@@ -94,14 +120,6 @@ 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) { \
@@ -382,7 +400,7 @@ 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;
@@ -432,18 +450,46 @@ 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);
@@ -462,9 +508,17 @@ 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"
@@ -474,14 +528,21 @@ 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");
-- 
2.11.0