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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
| /* sdl2.c --- SDL2 routines used by the TV and KBD interfaces
*/
#include <signal.h>
#include <SDL.h>
#include "tv.h"
#include "kbd.h"
#include "mouse.h"
#include "utrace.h"
#include "idle.h"
#include <X11/keysym.h> // for XK_FOO meh
#include <X11/X.h> // for FOOMapIndex meh
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *texture;
int
sdl2_bucky(SDL_KeyboardEvent e)
{
int mod = SDL_GetModState();
if (mod & KMOD_CTRL && (e.keysym.sym == SDLK_LCTRL || e.keysym.sym == SDLK_RCTRL))
return ControlMapIndex;
if (mod & KMOD_SHIFT && (e.keysym.sym == SDLK_LSHIFT || e.keysym.sym == SDLK_RSHIFT))
return ShiftMapIndex;
if (mod & KMOD_ALT && (e.keysym.sym == SDLK_LALT || e.keysym.sym == SDLK_RALT))
return Mod1MapIndex;
// if (mod & KMOD_NUM) return Mod2MapIndex;
// if (mod & KMOD_MODE) return Mod3MapIndex;
if (mod & KMOD_GUI && (e.keysym.sym == SDLK_LGUI || e.keysym.sym == SDLK_RGUI))
return Mod4MapIndex;
// if (mod & KMOD_SCROLL) return Mod5MapIndex;
return -1;
}
int
sdl2_keysym_to_xk(SDL_KeyboardEvent e)
{
/* *INDENT-OFF* */
switch (e.keysym.sym) {
case SDLK_ESCAPE: return XK_Escape;
case SDLK_F1: return XK_F1;
case SDLK_F2: return XK_F2;
case SDLK_F3: return XK_F3;
case SDLK_F4: return XK_F4;
case SDLK_F5: return XK_F5;
case SDLK_F6: return XK_F6;
case SDLK_F7: return XK_F7;
case SDLK_PAGEUP: return XK_Page_Up;
case SDLK_PAGEDOWN: return XK_Page_Down;
case SDLK_HOME: return XK_Home;
case SDLK_END: return XK_End;
case SDLK_LEFT: return XK_Left;
case SDLK_RIGHT: return XK_Right;
case SDLK_UP: return XK_Up;
case SDLK_DOWN: return XK_Down;
case SDLK_BACKQUOTE: return e.keysym.mod & KMOD_SHIFT ? XK_asciitilde : XK_grave;
case SDLK_1: return e.keysym.mod & KMOD_SHIFT ? XK_exclam : XK_1;
case SDLK_2: return e.keysym.mod & KMOD_SHIFT ? XK_at : XK_2;
case SDLK_3: return e.keysym.mod & KMOD_SHIFT ? XK_numbersign : XK_3;
case SDLK_4: return e.keysym.mod & KMOD_SHIFT ? XK_dollar : XK_4;
case SDLK_5: return e.keysym.mod & KMOD_SHIFT ? XK_percent : XK_5;
case SDLK_6: return e.keysym.mod & KMOD_SHIFT ? XK_asciicircum : XK_6;
case SDLK_7: return e.keysym.mod & KMOD_SHIFT ? XK_ampersand : XK_7;
case SDLK_8: return e.keysym.mod & KMOD_SHIFT ? XK_asterisk : XK_8;
case SDLK_9: return e.keysym.mod & KMOD_SHIFT ? XK_parenleft : XK_9;
case SDLK_0: return e.keysym.mod & KMOD_SHIFT ? XK_parenright : XK_0;
case SDLK_MINUS: return e.keysym.mod & KMOD_SHIFT ? XK_underscore : XK_minus;
case SDLK_EQUALS: return e.keysym.mod & KMOD_SHIFT ? XK_plus : XK_equal;
case SDLK_TAB: return XK_Tab;
case SDLK_q: return e.keysym.mod & KMOD_SHIFT ? XK_Q : XK_q;
case SDLK_w: return e.keysym.mod & KMOD_SHIFT ? XK_W : XK_w;
case SDLK_e: return e.keysym.mod & KMOD_SHIFT ? XK_E : XK_e;
case SDLK_r: return e.keysym.mod & KMOD_SHIFT ? XK_R : XK_r;
case SDLK_t: return e.keysym.mod & KMOD_SHIFT ? XK_T : XK_t;
case SDLK_y: return e.keysym.mod & KMOD_SHIFT ? XK_Y : XK_y;
case SDLK_u: return e.keysym.mod & KMOD_SHIFT ? XK_U : XK_u;
case SDLK_i: return e.keysym.mod & KMOD_SHIFT ? XK_I : XK_i;
case SDLK_o: return e.keysym.mod & KMOD_SHIFT ? XK_O : XK_o;
case SDLK_p: return e.keysym.mod & KMOD_SHIFT ? XK_P : XK_p;
case SDLK_LEFTBRACKET: return e.keysym.mod & KMOD_SHIFT ? XK_braceleft : XK_bracketleft;
case SDLK_RIGHTBRACKET: return e.keysym.mod & KMOD_SHIFT ? XK_braceright : XK_bracketright;
case SDLK_BACKSLASH: return e.keysym.mod & KMOD_SHIFT ? XK_bar : XK_backslash;
case SDLK_BACKSPACE: return XK_BackSpace;
case SDLK_a: return e.keysym.mod & KMOD_SHIFT ? XK_A : XK_a;
case SDLK_s: return e.keysym.mod & KMOD_SHIFT ? XK_S : XK_s;
case SDLK_d: return e.keysym.mod & KMOD_SHIFT ? XK_D : XK_d;
case SDLK_f: return e.keysym.mod & KMOD_SHIFT ? XK_F : XK_f;
case SDLK_g: return e.keysym.mod & KMOD_SHIFT ? XK_G : XK_g;
case SDLK_h: return e.keysym.mod & KMOD_SHIFT ? XK_H : XK_h;
case SDLK_j: return e.keysym.mod & KMOD_SHIFT ? XK_J : XK_j;
case SDLK_k: return e.keysym.mod & KMOD_SHIFT ? XK_K : XK_k;
case SDLK_l: return e.keysym.mod & KMOD_SHIFT ? XK_L : XK_l;
case SDLK_SEMICOLON: return e.keysym.mod & KMOD_SHIFT ? XK_colon : XK_semicolon;
case SDLK_QUOTE: return e.keysym.mod & KMOD_SHIFT ? XK_quotedbl : XK_apostrophe;
case SDLK_RETURN: return XK_Return;
case SDLK_z: return e.keysym.mod & KMOD_SHIFT ? XK_Z : XK_z;
case SDLK_x: return e.keysym.mod & KMOD_SHIFT ? XK_X : XK_x;
case SDLK_c: return e.keysym.mod & KMOD_SHIFT ? XK_C : XK_c;
case SDLK_v: return e.keysym.mod & KMOD_SHIFT ? XK_V : XK_v;
case SDLK_b: return e.keysym.mod & KMOD_SHIFT ? XK_B : XK_b;
case SDLK_n: return e.keysym.mod & KMOD_SHIFT ? XK_N : XK_n;
case SDLK_m: return e.keysym.mod & KMOD_SHIFT ? XK_M : XK_m;
case SDLK_COMMA: return e.keysym.mod & KMOD_SHIFT ? XK_less : XK_comma;
case SDLK_PERIOD: return e.keysym.mod & KMOD_SHIFT ? XK_greater : XK_period;
case SDLK_SLASH: return e.keysym.mod & KMOD_SHIFT ? XK_question : XK_slash;
case SDLK_SPACE: return XK_space;
// case SDLK_MODE: return ???;
case SDLK_LSHIFT: return XK_Shift_L;
case SDLK_RSHIFT: return XK_Shift_R;
case SDLK_LCTRL: return XK_Control_L;
case SDLK_RCTRL: return XK_Control_R;
case SDLK_CAPSLOCK: return XK_Caps_Lock;
// case ???: return XK_Shift_Lock;
case SDLK_LGUI: return XK_Meta_L;
case SDLK_RGUI: return XK_Meta_R;
case SDLK_LALT: return XK_Alt_L;
case SDLK_RALT: return XK_Alt_R;
// case SDLK_LSUPER: return XK_Super_L;
// case SDLK_RSUPER: return XK_Super_R;
// case SDLK_LHYPER: return XK_Hyper_L;
// case SDLK_RHYPER: return XK_Hyper_R;
default: return XK_VoidSymbol;
}
/* *INDENT-ON* */
}
bool
cadet_allup_key(void)
{
bool allup;
int mods;
int shifts;
int statesize;
Uint8 *state;
allup = true;
mods = 0;
shifts = 0;
state = SDL_GetKeyboardState(&statesize);
for (int i = 0; allup && i < statesize; i++) {
int bucky;
if (state[i] != 1)
continue; /* bucky not pressed */
bucky = -1;
// This needs to be cleaned up -- translates scancode to bucky xk/index
switch (SDL_GetKeyFromScancode(i)) {
case SDLK_LSHIFT: case SDLK_RSHIFT: bucky = modifier_map[ShiftMapIndex]; break;
case SDLK_LCTRL: case SDLK_RCTRL: bucky = modifier_map[ControlMapIndex]; break;
case SDLK_LALT: case SDLK_RALT: bucky = modifier_map[Mod1MapIndex]; break;
case SDLK_LGUI: case SDLK_RGUI: bucky = modifier_map[Mod4MapIndex]; break;
// case SDLK_LSUPER: case SDLK_RSUPER:
// case SDLK_MODE: bucky = modifier_map[Mod5MapIndex]; break;
// case SDLK_MENU: bucky = modifier_map[KBD_NoSymbol]; break;
// case SDLK_COMPOSE: bucky = modifier_map[]; break;
case SDLK_CAPSLOCK:bucky = modifier_map[LockMapIndex]; break;
}
DEBUG(TRACE_KBD, "cadet_allup_key() - bucky pressed (%d), i = %d\n", bucky, i);
cadet_press_bucky(bucky, &mods, &shifts);
}
if (allup == true) {
DEBUG(TRACE_KBD, "cadet_allup_key() - all-up event; mods = 0%o, shifts = 0%o\n", mods, shifts);
cadet_shifts = shifts;
cadet_allup_event(mods);
}
return allup;
}
static void
process_key(SDL_KeyboardEvent e, int keydown)
{
// KeySym keysym;
// SDLKey keycode;
int bi;
int keysym;
idle_keyboard_activity();
keysym = sdl2_keysym_to_xk(e);
if (keysym == XK_VoidSymbol || keysym > NELEM(kbd_map)) {
NOTICE(TRACE_USIM, "cadet@sdl2): unable to translate to keysym (keysym = 0%o)\n", keysym);
return;
}
if (kbd_type == 0) {
if (!keydown)
return;
bi = 0;
int mod = SDL_GetModState();
if (mod & KMOD_SHIFT)
knight_process_bucky(ShiftMapIndex, &bi);
if (mod & KMOD_CAPS)
knight_process_bucky(LockMapIndex, &bi);
if (mod & KMOD_CTRL)
knight_process_bucky(ControlMapIndex, &bi);
// if (mod & Mod1Mask)
// knight_process_bucky(Mod1MapIndex, &bi);
// if (mod & Mod2Mask)
// knight_process_bucky(Mod2MapIndex, &bi);
// if (mod & Mod3Mask)
// knight_process_bucky(Mod3MapIndex, &bi);
// if (mod & Mod4Mask)
// knight_process_bucky(Mod4MapIndex, &bi);
// if (mod & Mod5Mask)
// knight_process_bucky(Mod5MapIndex, &bi);
knight_process_key(e.keysym.sym, bi, keydown);
} else {
bi = sdl2_bucky(e);
cadet_process_key(keysym /* xk_keysym */ , bi, keydown, &cadet_allup_key);
}
}
void
update(int u_minh, int u_minv, int hs, int vs)
{
SDL_UpdateTexture(texture, NULL, tv_bitmap, tv_width * sizeof(Uint32));
// Flush
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
}
void
sdl2_event(void)
{
SDL_Event ev;
send_accumulated_updates(&update);
kbd_dequeue_key_event();
if (is_mouse_warp) {
is_mouse_warp = 0;
SDL_WarpMouseInWindow(window, mouse_warp_x, mouse_warp_y);
}
while (SDL_PollEvent(&ev)) {
switch (ev.type) {
case SDL_WINDOWEVENT:
SDL_UpdateTexture(texture, NULL, tv_bitmap, tv_width * sizeof(Uint32));
// flush
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
break;
case SDL_KEYDOWN:
process_key(ev.key, 1);
break;
case SDL_KEYUP:
process_key(ev.key, 0);
break;
case SDL_MOUSEMOTION:
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
mouse_event(ev.button.x, ev.button.y, ev.button.button);
break;
case SDL_QUIT:
exit(0);
break;
}
}
}
float xbeep_volume = 1.0f;
int AMPLITUDE = 28000;
const int SAMPLE_RATE = 44100;
int xbeep_sample_nr = 0;
float xbeep_freq = 0.0f;
void
xbeep_audio_callback(void *user_data, Uint8 *raw_buffer, int bytes)
{
Sint16 *buffer = (Sint16 *) raw_buffer;
int length = bytes / 2; // 2 bytes per sample for AUDIO_S16SYS
float *freq = (float *) (user_data);
int amp = AMPLITUDE * xbeep_volume;
for (int i = 0; i < length; i++, xbeep_sample_nr++) {
double time = (double) xbeep_sample_nr / (double) SAMPLE_RATE;
buffer[i] = (Sint16) (amp * sin(2.0f * M_PI * (*freq) * time)); // render sine wave
}
}
void
xbeep_audio_init(void)
{
SDL_AudioSpec want;
SDL_AudioSpec have;
want.freq = SAMPLE_RATE;
want.format = AUDIO_S16SYS;
want.channels = 1;
want.samples = 2048;
want.callback = xbeep_audio_callback;
want.userdata = &xbeep_freq;
if (SDL_OpenAudio(&want, &have) != 0)
SDL_LogError(SDL_LOG_CATEGORY_AUDIO, "Failed to open audio: %s", SDL_GetError());
if (want.format != have.format)
SDL_LogError(SDL_LOG_CATEGORY_AUDIO, "Failed to get the desired AudioSpec");
SDL_PauseAudio(1);
}
void
xbeep_audio_close(void)
{
SDL_CloseAudio();
}
void
xbeep(int halfwavelength, int duration)
{
xbeep_freq = 1000000.0f / (float) (halfwavelength * 2);
xbeep_sample_nr = 0;
SDL_PauseAudio(0);
SDL_Delay(duration / 1000);
SDL_PauseAudio(1);
}
void
sdl2_beep(int v)
{
///XBEEP (MISC-INST-ENTRY %BEEP)
///;;; First argument is half-wavelength, second is duration. Both are in microseconds.
///;;; M-1 has 2nd argument (duration) which is added to initial time-check
///;;; M-2 contains most recent time check
///;;; to compute quitting time
///;;; M-C contains 1st argument, the wavelength
///;;; M-4 contains the time at which the next click must be done.
///;;; Note that the 32-bit clock wraps around once an hour, we have to be careful
///;;; to compare clock values in the correct way, namely without overflow checking.
extern uint32_t mmem[32];
#define DTP_FIX_VAL(x) ((x) & ((1 << 24) - 1))
#define DTP_FIX(x) (DTP_FIX_VAL(x) | 5 << 25)
int wavelength = DTP_FIX_VAL(mmem[7]); //M-C M-MEM 7
int duration = DTP_FIX_VAL(mmem[22]); //M-1 M-MEM 22
xbeep(wavelength, duration);
}
void
sdl2_init(void)
{
NOTICE(TRACE_USIM, "tv: using SDL2 backend for monitor and keyboard\n");
Foreground = 0xffffff; // White
Background = 0x000000; // Black
xbeep_audio_init();
SDL_CreateWindowAndRenderer(tv_width, tv_height, SDL_WINDOW_OPENGL, &window, &renderer);
SDL_ShowCursor(0); /* Invisible cursor. */
// SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
// SDL_RenderClear(renderer);
// SDL_RenderPresent(renderer);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear"); // make the scaled rendering look smoother.
SDL_RenderSetLogicalSize(renderer, tv_width, tv_height);
texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, tv_width, tv_height);
}
|