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1.1.1.3 root 1: /*
1.1 root 2: * UAE - The Un*x Amiga Emulator
1.1.1.3 root 3: *
1.1 root 4: * Keyboard buffer. Not really needed for X, but for SVGAlib and possibly
5: * Mac and DOS ports.
1.1.1.3 root 6: *
7: * Note: it's possible to have two threads in UAE, one reading keystrokes
8: * and the other one writing them. Despite this, no synchronization effort
9: * is needed. This code should be perfectly thread safe. At least if you
10: * assume that integer store instructions are atomic.
11: *
12: * Copyright 1995, 1997 Bernd Schmidt
1.1 root 13: */
14:
15: #include "sysconfig.h"
16: #include "sysdeps.h"
17: #include <assert.h>
18:
19: #include "config.h"
20: #include "options.h"
21: #include "keybuf.h"
22: #include "keyboard.h"
1.1.1.3 root 23: #include "joystick.h"
1.1 root 24:
1.1.1.3 root 25: static int fakestate[3][5] = { { 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0 } };
1.1 root 26:
1.1.1.3 root 27: static int *fs_np;
28: static int *fs_ck;
29: static int *fs_se;
30:
31: void getjoystate(int nr, unsigned int *st, int *button)
1.1 root 32: {
1.1.1.3 root 33: int *fake = 0;
34:
1.1.1.4 ! root 35: if (JSEM_ISJOY0 (nr, &currprefs))
1.1.1.3 root 36: nr = 0;
1.1.1.4 ! root 37: else if (JSEM_ISJOY1 (nr, &currprefs))
1.1.1.3 root 38: nr = 1;
1.1.1.4 ! root 39: else if (JSEM_ISMOUSE (nr, &currprefs)) {
1.1.1.3 root 40: *st = 0;
41: *button = 0;
42: return;
43: } else
44: fake = fakestate[nr];
45:
46: if (fake) {
47: int top = fake[0];
48: int bot = fake[3];
49: if (fake[1]) top = !top;
50: if (fake[2]) bot = !bot;
51: *st = bot | (fake[2] << 1) | (top << 8) | (fake[1] << 9);
52: *button = fake[4];
1.1 root 53: } else
1.1.1.3 root 54: read_joystick (nr, st, button);
1.1 root 55: }
56:
57: /* Not static so the DOS code can mess with them */
58: int kpb_first, kpb_last;
59:
1.1.1.2 root 60: int keybuf[256];
1.1 root 61:
62: int keys_available (void)
63: {
1.1.1.3 root 64: int val;
65: val = kpb_first != kpb_last;
66: return val;
1.1 root 67: }
68:
69: int get_next_key (void)
70: {
71: int key;
72: assert (kpb_first != kpb_last);
1.1.1.3 root 73:
1.1 root 74: key = keybuf[kpb_last];
1.1.1.3 root 75: if (++kpb_last == 256)
1.1 root 76: kpb_last = 0;
1.1.1.3 root 77: return key;
1.1 root 78: }
79:
80: void record_key (int kc)
81: {
82: int kpb_next = kpb_first + 1;
83:
84: if (kpb_next == 256)
85: kpb_next = 0;
86: if (kpb_next == kpb_last) {
1.1.1.3 root 87: write_log ("Keyboard buffer overrun. Congratulations.\n");
1.1 root 88: return;
89: }
1.1.1.3 root 90: if (fs_np != 0) {
91: switch (kc >> 1) {
92: case AK_NP8: fs_np[0] = !(kc & 1); return;
93: case AK_NP4: fs_np[1] = !(kc & 1); return;
94: case AK_NP6: fs_np[2] = !(kc & 1); return;
95: case AK_NP2: fs_np[3] = !(kc & 1); return;
96: case AK_NP0: case AK_NP5: fs_np[4] = !(kc & 1); return;
97: }
98: }
99: if (fs_ck != 0) {
1.1 root 100: switch (kc >> 1) {
1.1.1.3 root 101: case AK_UP: fs_ck[0] = !(kc & 1); return;
102: case AK_LF: fs_ck[1] = !(kc & 1); return;
103: case AK_RT: fs_ck[2] = !(kc & 1); return;
104: case AK_DN: fs_ck[3] = !(kc & 1); return;
105: case AK_RCTRL: fs_ck[4] = !(kc & 1); return;
1.1 root 106: }
107: }
1.1.1.3 root 108: if (fs_se != 0) {
109: switch (kc >> 1) {
110: case AK_T: fs_se[0] = !(kc & 1); return;
111: case AK_F: fs_se[1] = !(kc & 1); return;
112: case AK_H: fs_se[2] = !(kc & 1); return;
113: case AK_B: fs_se[3] = !(kc & 1); return;
114: case AK_LALT: fs_se[4] = !(kc & 1); return;
115: }
116: }
1.1.1.4 ! root 117: if ((kc >> 1) == AK_RCTRL) {
! 118: kc ^= AK_RCTRL << 1;
! 119: kc ^= AK_CTRL << 1;
! 120: }
1.1 root 121: keybuf[kpb_first] = kc;
122: kpb_first = kpb_next;
123: }
124:
1.1.1.3 root 125: void joystick_setting_changed (void)
126: {
127: fs_np = fs_ck = fs_se = 0;
128:
1.1.1.4 ! root 129: if (JSEM_ISNUMPAD (0, &currprefs))
1.1.1.3 root 130: fs_np = fakestate[0];
1.1.1.4 ! root 131: else if (JSEM_ISNUMPAD (1, &currprefs))
1.1.1.3 root 132: fs_np = fakestate[1];
133:
1.1.1.4 ! root 134: if (JSEM_ISCURSOR (0, &currprefs))
1.1.1.3 root 135: fs_ck = fakestate[0];
1.1.1.4 ! root 136: else if (JSEM_ISCURSOR (1, &currprefs))
1.1.1.3 root 137: fs_ck = fakestate[1];
138:
1.1.1.4 ! root 139: if (JSEM_ISSOMEWHEREELSE (0, &currprefs))
1.1.1.3 root 140: fs_se = fakestate[0];
1.1.1.4 ! root 141: else if (JSEM_ISSOMEWHEREELSE (1, &currprefs))
1.1.1.3 root 142: fs_se = fakestate[1];
143:
144: }
145:
1.1 root 146: void keybuf_init (void)
147: {
148: kpb_first = kpb_last = 0;
1.1.1.3 root 149: joystick_setting_changed ();
1.1 root 150: }
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