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1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2011 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * See the COPYING file in the top-level directory. |
9 | */ |
10 | |
11 | #include <stdio.h> |
12 | #include <tslib.h> |
13 | |
14 | #include "common/input.h" |
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15 | #include "pl_gun_ts.h" |
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16 | #include "in_tsbutton.h" |
17 | |
18 | #define IN_TSBUTTON_PREFIX "tsbutton:" |
19 | #define IN_TSBUTTON_COUNT 4 |
20 | static int tsbutton_down_id; |
21 | static int last_tsbutton_id; |
22 | |
23 | #define TS_WIDTH 320 |
24 | #define TS_HEIGHT 240 |
25 | |
26 | // HACK: stealing this from plugin_lib |
27 | extern void *tsdev; |
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28 | |
29 | static const char * const in_tsbutton_keys[IN_TSBUTTON_COUNT] = { |
30 | "TS1", "TS2", "TS3", "TS4", |
31 | }; |
32 | |
33 | static void in_tsbutton_probe(void) |
34 | { |
35 | struct tsdev *dev = tsdev; |
36 | if (dev == NULL) { |
37 | fprintf(stderr, "in_tsbutton_probe: missing tsdev\n"); |
38 | return; |
39 | } |
40 | |
41 | in_register(IN_TSBUTTON_PREFIX "touchscreen as buttons", |
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42 | pl_gun_ts_get_fd(dev), NULL, IN_TSBUTTON_COUNT, in_tsbutton_keys, 0); |
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43 | } |
44 | |
45 | static const char * const * |
46 | in_tsbutton_get_key_names(int *count) |
47 | { |
48 | *count = IN_TSBUTTON_COUNT; |
49 | return in_tsbutton_keys; |
50 | } |
51 | |
52 | static int update_button(void) |
53 | { |
54 | struct tsdev *dev = tsdev; |
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55 | int sx = 0, sy = 0, sp = 0; |
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56 | |
57 | if (dev == NULL) |
58 | return -1; |
59 | |
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60 | if (pl_gun_ts_update_raw(dev, &sx, &sy, &sp)) { |
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61 | if (sp == 0) |
62 | tsbutton_down_id = -1; |
63 | else { |
64 | // 0 1 |
65 | // 2 3 |
66 | tsbutton_down_id = 0; |
67 | if (sx > TS_WIDTH / 2) |
68 | tsbutton_down_id++; |
69 | if (sy > TS_HEIGHT / 2) |
70 | tsbutton_down_id += 2; |
71 | } |
72 | } |
73 | |
74 | return 0; |
75 | } |
76 | |
77 | static int in_tsbutton_update(void *drv_data, const int *binds, int *result) |
78 | { |
79 | int ret, t; |
80 | |
81 | ret = update_button(); |
82 | if (ret != 0) |
83 | return ret; |
84 | |
85 | if (tsbutton_down_id >= 0) |
86 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) |
87 | result[t] |= binds[IN_BIND_OFFS(tsbutton_down_id, t)]; |
88 | |
89 | return 0; |
90 | } |
91 | |
92 | static int in_tsbutton_update_keycode(void *data, int *is_down) |
93 | { |
94 | int ret, ret_kc = -1, ret_down = 0; |
95 | |
96 | ret = update_button(); |
97 | if (ret != 0) |
98 | return ret; |
99 | |
100 | if (tsbutton_down_id == last_tsbutton_id) |
101 | return -1; |
102 | |
103 | if (tsbutton_down_id >= 0) { |
104 | if (last_tsbutton_id >= 0) { |
105 | ret_kc = last_tsbutton_id; |
106 | last_tsbutton_id = -1; |
107 | } |
108 | else { |
109 | ret_down = 1; |
110 | ret_kc = tsbutton_down_id; |
111 | last_tsbutton_id = tsbutton_down_id; |
112 | } |
113 | } |
114 | else { |
115 | ret_kc = last_tsbutton_id; |
116 | last_tsbutton_id = -1; |
117 | } |
118 | |
119 | if (is_down != NULL) |
120 | *is_down = ret_down; |
121 | |
122 | return ret_kc; |
123 | } |
124 | |
125 | static const in_drv_t in_tsbutton_drv = { |
126 | .prefix = IN_TSBUTTON_PREFIX, |
127 | .probe = in_tsbutton_probe, |
128 | .get_key_names = in_tsbutton_get_key_names, |
129 | .update = in_tsbutton_update, |
130 | .update_keycode = in_tsbutton_update_keycode, |
131 | }; |
132 | |
133 | void in_tsbutton_init(void) |
134 | { |
135 | tsbutton_down_id = last_tsbutton_id = -1; |
136 | in_register_driver(&in_tsbutton_drv); |
137 | } |
138 | |