IEEE 802.15.4 subsystem
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Source at commit 49e7c83796bc04941e9dbcec69bc0751563ff4d4 created 7 years 5 days ago. By Werner Almesberger, atusb/: use ""VDD" symbol from kicad-libs | |
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1 | /* |
2 | * atrf-rssi/letter.c - Draw 7 segment style letters |
3 | * |
4 | * Written 2011 by Werner Almesberger |
5 | * Copyright 2011 Werner Almesberger |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | */ |
12 | |
13 | |
14 | #include <stdint.h> |
15 | |
16 | #include "SDL.h" |
17 | #include "SDL_gfxPrimitives.h" |
18 | |
19 | #include "letter.h" |
20 | |
21 | |
22 | static void hlines_3(SDL_Surface *s, int x0, int x1, int y0, int ym, int y1, |
23 | uint32_t fg) |
24 | { |
25 | hlineColor(s, x0, x1, y0, fg); |
26 | hlineColor(s, x0, x1, ym, fg); |
27 | hlineColor(s, x0, x1, y1, fg); |
28 | } |
29 | |
30 | |
31 | void letter(SDL_Surface *s, char c, int x0, int x1, int y0, int ym, int y1, |
32 | uint32_t fg) |
33 | { |
34 | switch (c) { |
35 | case 'E': |
36 | hlines_3(s, x0, x1, y0, ym, y1, fg); |
37 | vlineColor(s, x0, y0, y1, fg); |
38 | break; |
39 | case 'U': |
40 | vlineColor(s, x0, ym, y1, fg); |
41 | /* fall through */ |
42 | case 'J': |
43 | hlineColor(s, x0, x1, y0, fg); |
44 | vlineColor(s, x1, y0, y1, fg); |
45 | vlineColor(s, x0, y0, ym, fg); |
46 | break; |
47 | case 'P': |
48 | hlineColor(s, x0, x1, y1, fg); |
49 | hlineColor(s, x0, x1, ym, fg); |
50 | vlineColor(s, x1, ym, y1, fg); |
51 | vlineColor(s, x0, y0, y1, fg); |
52 | break; |
53 | case 'S': |
54 | hlines_3(s, x0, x1, y0, ym, y1, fg); |
55 | vlineColor(s, x0, ym, y1, fg); |
56 | vlineColor(s, x1, y0, ym, fg); |
57 | break; |
58 | hlineColor(s, x0, x1, y0, fg); |
59 | vlineColor(s, x0, y0, y1, fg); |
60 | default: |
61 | abort(); |
62 | } |
63 | } |
64 |