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44d1c20a VS |
1 | /* |
2 | * GRUB -- GRand Unified Bootloader | |
3 | * Copyright (C) 2010,2012,2013 Free Software Foundation, Inc. | |
4 | * | |
5 | * GRUB is free software: you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, either version 3 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * GRUB is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with GRUB. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | ||
20 | #include <config.h> | |
21 | ||
22 | #include <grub/util/misc.h> | |
ee5283d6 | 23 | #include <grub/util/install.h> |
44d1c20a VS |
24 | #include <grub/i18n.h> |
25 | #include <grub/term.h> | |
26 | #include <grub/font.h> | |
27 | #include <grub/gfxmenu_view.h> | |
28 | #include <grub/color.h> | |
5177391e | 29 | #include <grub/emu/hostdisk.h> |
44d1c20a VS |
30 | |
31 | #define _GNU_SOURCE 1 | |
32 | ||
33 | #include <stdio.h> | |
34 | #include <stdlib.h> | |
35 | #include <string.h> | |
44d1c20a VS |
36 | #include <unistd.h> |
37 | #include <errno.h> | |
38 | ||
44d1c20a VS |
39 | struct header |
40 | { | |
41 | grub_uint8_t magic; | |
42 | grub_uint16_t width; | |
43 | grub_uint16_t height; | |
7e47e27b | 44 | } GRUB_PACKED; |
44d1c20a VS |
45 | |
46 | static struct grub_video_palette_data ieee1275_palette[256]; | |
47 | ||
48 | void | |
49 | grub_util_render_label (const char *label_font, | |
50 | const char *label_bgcolor, | |
51 | const char *label_color, | |
52 | const char *text, | |
53 | const char *output) | |
54 | { | |
55 | struct header head; | |
56 | FILE *out; | |
57 | int i, j, k, cptr = 0; | |
58 | grub_font_t font; | |
59 | char *fontfull; | |
60 | const grub_uint8_t vals[] = { 0xff, 0xda, 0xb3, 0x87, 0x54, 0x00 }; | |
61 | const grub_uint8_t vals2[] = { 0xf3, 0xe7, 0xcd, 0xc0, 0xa5, 0x96, | |
62 | 0x77, 0x66, 0x3f, 0x27 }; | |
63 | int width, height; | |
64 | grub_uint8_t bg, fg; | |
65 | struct grub_video_mode_info mode_info; | |
66 | grub_err_t err; | |
67 | grub_video_rgba_color_t fgcolor; | |
68 | grub_video_rgba_color_t bgcolor; | |
69 | ||
70 | if (output) | |
71 | out = grub_util_fopen (output, "wb"); | |
72 | else | |
73 | out = stdout; | |
74 | if (!out) | |
75 | { | |
76 | grub_util_error (_("cannot open `%s': %s"), output ? : "stdout", | |
77 | strerror (errno)); | |
78 | } | |
79 | ||
80 | if (label_color) | |
81 | { | |
82 | err = grub_video_parse_color (label_color, &fgcolor); | |
83 | if (err) | |
84 | grub_util_error (_("invalid color specification `%s'"), label_color); | |
85 | } | |
86 | else | |
87 | { | |
88 | fgcolor.red = 0x00; | |
89 | fgcolor.green = 0x00; | |
90 | fgcolor.blue = 0x00; | |
91 | fgcolor.alpha = 0xff; | |
92 | } | |
93 | ||
94 | if (label_bgcolor) | |
95 | { | |
96 | err = grub_video_parse_color (label_bgcolor, &bgcolor); | |
97 | if (err) | |
98 | grub_util_error (_("invalid color specification `%s'"), label_bgcolor); | |
99 | } | |
100 | else | |
101 | { | |
102 | bgcolor.red = 0xff; | |
103 | bgcolor.green = 0xff; | |
104 | bgcolor.blue = 0xff; | |
105 | bgcolor.alpha = 0xff; | |
106 | } | |
107 | ||
108 | for (i = 0; i < 256; i++) | |
109 | ieee1275_palette[i].a = 0xff; | |
110 | ||
111 | for (i = 0; i < 6; i++) | |
112 | for (j = 0; j < 6; j++) | |
113 | for (k = 0; k < 6; k++) | |
114 | { | |
115 | ieee1275_palette[cptr].r = vals[i]; | |
116 | ieee1275_palette[cptr].g = vals[j]; | |
117 | ieee1275_palette[cptr].b = vals[k]; | |
118 | ieee1275_palette[cptr].a = 0xff; | |
119 | cptr++; | |
120 | } | |
121 | cptr--; | |
122 | for (i = 0; i < 10; i++) | |
123 | { | |
124 | ieee1275_palette[cptr].r = vals2[i]; | |
125 | ieee1275_palette[cptr].g = 0; | |
126 | ieee1275_palette[cptr].b = 0; | |
127 | ieee1275_palette[cptr].a = 0xff; | |
128 | cptr++; | |
129 | } | |
130 | for (i = 0; i < 10; i++) | |
131 | { | |
132 | ieee1275_palette[cptr].r = 0; | |
133 | ieee1275_palette[cptr].g = vals2[i]; | |
134 | ieee1275_palette[cptr].b = 0; | |
135 | ieee1275_palette[cptr].a = 0xff; | |
136 | cptr++; | |
137 | } | |
138 | for (i = 0; i < 10; i++) | |
139 | { | |
140 | ieee1275_palette[cptr].r = 0; | |
141 | ieee1275_palette[cptr].g = 0; | |
142 | ieee1275_palette[cptr].b = vals2[i]; | |
143 | ieee1275_palette[cptr].a = 0xff; | |
144 | cptr++; | |
145 | } | |
146 | for (i = 0; i < 10; i++) | |
147 | { | |
148 | ieee1275_palette[cptr].r = vals2[i]; | |
149 | ieee1275_palette[cptr].g = vals2[i]; | |
150 | ieee1275_palette[cptr].b = vals2[i]; | |
151 | ieee1275_palette[cptr].a = 0xff; | |
152 | cptr++; | |
153 | } | |
154 | ieee1275_palette[cptr].r = 0; | |
155 | ieee1275_palette[cptr].g = 0; | |
156 | ieee1275_palette[cptr].b = 0; | |
157 | ieee1275_palette[cptr].a = 0xff; | |
158 | ||
159 | char * t; | |
27d1a67f | 160 | t = grub_canonicalize_file_name (label_font); |
44d1c20a VS |
161 | if (!t) |
162 | { | |
163 | grub_util_error (_("cannot open `%s': %s"), label_font, | |
164 | strerror (errno)); | |
165 | } | |
166 | ||
167 | fontfull = xasprintf ("(host)/%s", t); | |
168 | free (t); | |
169 | ||
44d1c20a VS |
170 | grub_font_loader_init (); |
171 | font = grub_font_load (fontfull); | |
172 | if (!font) | |
173 | { | |
174 | grub_util_error (_("cannot open `%s': %s"), label_font, | |
175 | grub_errmsg); | |
176 | } | |
177 | ||
178 | width = grub_font_get_string_width (font, text) + 10; | |
179 | height = grub_font_get_height (font); | |
180 | ||
181 | mode_info.width = width; | |
182 | mode_info.height = height; | |
183 | mode_info.pitch = width; | |
184 | ||
185 | mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR; | |
186 | mode_info.bpp = 8; | |
187 | mode_info.bytes_per_pixel = 1; | |
188 | mode_info.number_of_colors = 256; | |
189 | ||
190 | grub_video_capture_start (&mode_info, ieee1275_palette, | |
191 | ARRAY_SIZE (ieee1275_palette)); | |
192 | ||
193 | fg = grub_video_map_rgb (fgcolor.red, | |
194 | fgcolor.green, | |
195 | fgcolor.blue); | |
196 | bg = grub_video_map_rgb (bgcolor.red, | |
197 | bgcolor.green, | |
198 | bgcolor.blue); | |
199 | ||
200 | grub_memset (grub_video_capture_get_framebuffer (), bg, height * width); | |
201 | grub_font_draw_string (text, font, fg, | |
202 | 5, grub_font_get_ascent (font)); | |
203 | ||
204 | head.magic = 1; | |
205 | head.width = grub_cpu_to_be16 (width); | |
206 | head.height = grub_cpu_to_be16 (height); | |
207 | fwrite (&head, 1, sizeof (head), out); | |
208 | fwrite (grub_video_capture_get_framebuffer (), 1, width * height, out); | |
209 | ||
210 | grub_video_capture_end (); | |
211 | if (out != stdout) | |
212 | fclose (out); | |
213 | ||
214 | free (fontfull); | |
215 | } |