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The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <linux/input.h>
18#include <pthread.h>
19#include <stdarg.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <sys/reboot.h>
24#include <sys/time.h>
25#include <time.h>
26#include <unistd.h>
27
28#include "common.h"
29#include "minui/minui.h"
30
31#define MAX_COLS 64
32#define MAX_ROWS 32
33
34#define CHAR_WIDTH 10
35#define CHAR_HEIGHT 18
36
37#define PROGRESSBAR_INDETERMINATE_STATES 6
38#define PROGRESSBAR_INDETERMINATE_FPS 15
39
40enum { LEFT_SIDE, CENTER_TILE, RIGHT_SIDE, NUM_SIDES };
41
42static pthread_mutex_t gUpdateMutex = PTHREAD_MUTEX_INITIALIZER;
43static gr_surface gBackgroundIcon[NUM_BACKGROUND_ICONS];
44static gr_surface gProgressBarIndeterminate[PROGRESSBAR_INDETERMINATE_STATES];
45static gr_surface gProgressBarEmpty[NUM_SIDES];
46static gr_surface gProgressBarFill[NUM_SIDES];
47
48static const struct { gr_surface* surface; const char *name; } BITMAPS[] = {
49 { &gBackgroundIcon[BACKGROUND_ICON_UNPACKING], "icon_unpacking" },
50 { &gBackgroundIcon[BACKGROUND_ICON_INSTALLING], "icon_installing" },
51 { &gBackgroundIcon[BACKGROUND_ICON_ERROR], "icon_error" },
52 { &gBackgroundIcon[BACKGROUND_ICON_FIRMWARE_INSTALLING],
53 "icon_firmware_install" },
54 { &gBackgroundIcon[BACKGROUND_ICON_FIRMWARE_ERROR],
55 "icon_firmware_error" },
56 { &gProgressBarIndeterminate[0], "indeterminate1" },
57 { &gProgressBarIndeterminate[1], "indeterminate2" },
58 { &gProgressBarIndeterminate[2], "indeterminate3" },
59 { &gProgressBarIndeterminate[3], "indeterminate4" },
60 { &gProgressBarIndeterminate[4], "indeterminate5" },
61 { &gProgressBarIndeterminate[5], "indeterminate6" },
62 { &gProgressBarEmpty[LEFT_SIDE], "progress_bar_empty_left_round" },
63 { &gProgressBarEmpty[CENTER_TILE], "progress_bar_empty" },
64 { &gProgressBarEmpty[RIGHT_SIDE], "progress_bar_empty_right_round" },
65 { &gProgressBarFill[LEFT_SIDE], "progress_bar_left_round" },
66 { &gProgressBarFill[CENTER_TILE], "progress_bar_fill" },
67 { &gProgressBarFill[RIGHT_SIDE], "progress_bar_right_round" },
68 { NULL, NULL },
69};
70
71static gr_surface gCurrentIcon = NULL;
72
73static enum ProgressBarType {
74 PROGRESSBAR_TYPE_NONE,
75 PROGRESSBAR_TYPE_INDETERMINATE,
76 PROGRESSBAR_TYPE_NORMAL,
77} gProgressBarType = PROGRESSBAR_TYPE_NONE;
78
79// Progress bar scope of current operation
80static float gProgressScopeStart = 0, gProgressScopeSize = 0, gProgress = 0;
81static time_t gProgressScopeTime, gProgressScopeDuration;
82
83// Set to 1 when both graphics pages are the same (except for the progress bar)
84static int gPagesIdentical = 0;
85
86// Log text overlay, displayed when a magic key is pressed
87static char text[MAX_ROWS][MAX_COLS];
88static int text_cols = 0, text_rows = 0;
89static int text_col = 0, text_row = 0, text_top = 0;
90static int show_text = 0;
91
92static char menu[MAX_ROWS][MAX_COLS];
93static int show_menu = 0;
94static int menu_top = 0, menu_items = 0, menu_sel = 0;
95
96// Key event input queue
97static pthread_mutex_t key_queue_mutex = PTHREAD_MUTEX_INITIALIZER;
98static pthread_cond_t key_queue_cond = PTHREAD_COND_INITIALIZER;
99static int key_queue[256], key_queue_len = 0;
100static volatile char key_pressed[KEY_MAX + 1];
101
102// Clear the screen and draw the currently selected background icon (if any).
103// Should only be called with gUpdateMutex locked.
104static void draw_background_locked(gr_surface icon)
105{
106 gPagesIdentical = 0;
107 gr_color(0, 0, 0, 255);
108 gr_fill(0, 0, gr_fb_width(), gr_fb_height());
109
110 if (icon) {
111 int iconWidth = gr_get_width(icon);
112 int iconHeight = gr_get_height(icon);
113 int iconX = (gr_fb_width() - iconWidth) / 2;
114 int iconY = (gr_fb_height() - iconHeight) / 2;
115 gr_blit(icon, 0, 0, iconWidth, iconHeight, iconX, iconY);
116 }
117}
118
119// Draw the progress bar (if any) on the screen. Does not flip pages.
120// Should only be called with gUpdateMutex locked.
121static void draw_progress_locked()
122{
123 if (gProgressBarType == PROGRESSBAR_TYPE_NONE) return;
124
125 int iconHeight = gr_get_height(gBackgroundIcon[BACKGROUND_ICON_INSTALLING]);
126 int width = gr_get_width(gProgressBarIndeterminate[0]);
127 int height = gr_get_height(gProgressBarIndeterminate[0]);
128
129 int dx = (gr_fb_width() - width)/2;
130 int dy = (3*gr_fb_height() + iconHeight - 2*height)/4;
131
132 // Erase behind the progress bar (in case this was a progress-only update)
133 gr_color(0, 0, 0, 255);
134 gr_fill(dx, dy, width, height);
135
136 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL) {
137 float progress = gProgressScopeStart + gProgress * gProgressScopeSize;
138 int pos = (int) (progress * width);
139
140 gr_surface s = (pos ? gProgressBarFill : gProgressBarEmpty)[LEFT_SIDE];
141 gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx, dy);
142
143 int x = gr_get_width(s);
144 while (x + (int) gr_get_width(gProgressBarEmpty[RIGHT_SIDE]) < width) {
145 s = (pos > x ? gProgressBarFill : gProgressBarEmpty)[CENTER_TILE];
146 gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx + x, dy);
147 x += gr_get_width(s);
148 }
149
150 s = (pos > x ? gProgressBarFill : gProgressBarEmpty)[RIGHT_SIDE];
151 gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx + x, dy);
152 }
153
154 if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE) {
155 static int frame = 0;
156 gr_blit(gProgressBarIndeterminate[frame], 0, 0, width, height, dx, dy);
157 frame = (frame + 1) % PROGRESSBAR_INDETERMINATE_STATES;
158 }
159}
160
161static void draw_text_line(int row, const char* t) {
162 if (t[0] != '\0') {
163 gr_text(0, (row+1)*CHAR_HEIGHT-1, t);
164 }
165}
166
167// Redraw everything on the screen. Does not flip pages.
168// Should only be called with gUpdateMutex locked.
169static void draw_screen_locked(void)
170{
171 draw_background_locked(gCurrentIcon);
172 draw_progress_locked();
173
174 if (show_text) {
175 gr_color(0, 0, 0, 160);
176 gr_fill(0, 0, gr_fb_width(), gr_fb_height());
177
178 int i = 0;
179 if (show_menu) {
180 gr_color(64, 96, 255, 255);
181 gr_fill(0, (menu_top+menu_sel) * CHAR_HEIGHT,
182 gr_fb_width(), (menu_top+menu_sel+1)*CHAR_HEIGHT+1);
183
184 for (; i < menu_top + menu_items; ++i) {
185 if (i == menu_top + menu_sel) {
186 gr_color(255, 255, 255, 255);
187 draw_text_line(i, menu[i]);
188 gr_color(64, 96, 255, 255);
189 } else {
190 draw_text_line(i, menu[i]);
191 }
192 }
193 gr_fill(0, i*CHAR_HEIGHT+CHAR_HEIGHT/2-1,
194 gr_fb_width(), i*CHAR_HEIGHT+CHAR_HEIGHT/2+1);
195 ++i;
196 }
197
198 gr_color(255, 255, 0, 255);
199
200 for (; i < text_rows; ++i) {
201 draw_text_line(i, text[(i+text_top) % text_rows]);
202 }
203 }
204}
205
206// Redraw everything on the screen and flip the screen (make it visible).
207// Should only be called with gUpdateMutex locked.
208static void update_screen_locked(void)
209{
210 draw_screen_locked();
211 gr_flip();
212}
213
214// Updates only the progress bar, if possible, otherwise redraws the screen.
215// Should only be called with gUpdateMutex locked.
216static void update_progress_locked(void)
217{
218 if (show_text || !gPagesIdentical) {
219 draw_screen_locked(); // Must redraw the whole screen
220 gPagesIdentical = 1;
221 } else {
222 draw_progress_locked(); // Draw only the progress bar
223 }
224 gr_flip();
225}
226
227// Keeps the progress bar updated, even when the process is otherwise busy.
228static void *progress_thread(void *cookie)
229{
230 for (;;) {
231 usleep(1000000 / PROGRESSBAR_INDETERMINATE_FPS);
232 pthread_mutex_lock(&gUpdateMutex);
233
234 // update the progress bar animation, if active
235 // skip this if we have a text overlay (too expensive to update)
236 if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE && !show_text) {
237 update_progress_locked();
238 }
239
240 // move the progress bar forward on timed intervals, if configured
241 int duration = gProgressScopeDuration;
242 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && duration > 0) {
243 int elapsed = time(NULL) - gProgressScopeTime;
244 float progress = 1.0 * elapsed / duration;
245 if (progress > 1.0) progress = 1.0;
246 if (progress > gProgress) {
247 gProgress = progress;
248 update_progress_locked();
249 }
250 }
251
252 pthread_mutex_unlock(&gUpdateMutex);
253 }
254 return NULL;
255}
256
257// Reads input events, handles special hot keys, and adds to the key queue.
258static void *input_thread(void *cookie)
259{
260 int rel_sum = 0;
261 int fake_key = 0;
262 for (;;) {
263 // wait for the next key event
264 struct input_event ev;
265 do {
266 ev_get(&ev, 0);
267
268 if (ev.type == EV_SYN) {
269 continue;
270 } else if (ev.type == EV_REL) {
271 if (ev.code == REL_Y) {
272 // accumulate the up or down motion reported by
273 // the trackball. When it exceeds a threshold
274 // (positive or negative), fake an up/down
275 // key event.
276 rel_sum += ev.value;
277 if (rel_sum > 3) {
278 fake_key = 1;
279 ev.type = EV_KEY;
280 ev.code = KEY_DOWN;
281 ev.value = 1;
282 rel_sum = 0;
283 } else if (rel_sum < -3) {
284 fake_key = 1;
285 ev.type = EV_KEY;
286 ev.code = KEY_UP;
287 ev.value = 1;
288 rel_sum = 0;
289 }
290 }
291 } else {
292 rel_sum = 0;
293 }
294 } while (ev.type != EV_KEY || ev.code > KEY_MAX);
295
296 pthread_mutex_lock(&key_queue_mutex);
297 if (!fake_key) {
298 // our "fake" keys only report a key-down event (no
299 // key-up), so don't record them in the key_pressed
300 // table.
301 key_pressed[ev.code] = ev.value;
302 }
303 fake_key = 0;
304 const int queue_max = sizeof(key_queue) / sizeof(key_queue[0]);
305 if (ev.value > 0 && key_queue_len < queue_max) {
306 key_queue[key_queue_len++] = ev.code;
307 pthread_cond_signal(&key_queue_cond);
308 }
309 pthread_mutex_unlock(&key_queue_mutex);
310
311 // Alt+L or Home+End: toggle log display
312 int alt = key_pressed[KEY_LEFTALT] || key_pressed[KEY_RIGHTALT];
313 if ((alt && ev.code == KEY_L && ev.value > 0) ||
314 (key_pressed[KEY_HOME] && ev.code == KEY_END && ev.value > 0)) {
315 pthread_mutex_lock(&gUpdateMutex);
316 show_text = !show_text;
317 update_screen_locked();
318 pthread_mutex_unlock(&gUpdateMutex);
319 }
320
321 // Green+Menu+Red: reboot immediately
322 if (ev.code == KEY_DREAM_RED &&
323 key_pressed[KEY_DREAM_MENU] &&
324 key_pressed[KEY_DREAM_GREEN]) {
325 reboot(RB_AUTOBOOT);
326 }
327 }
328 return NULL;
329}
330
331void ui_init(void)
332{
333 gr_init();
334 ev_init();
335
336 text_col = text_row = 0;
337 text_rows = gr_fb_height() / CHAR_HEIGHT;
338 if (text_rows > MAX_ROWS) text_rows = MAX_ROWS;
339 text_top = 1;
340
341 text_cols = gr_fb_width() / CHAR_WIDTH;
342 if (text_cols > MAX_COLS - 1) text_cols = MAX_COLS - 1;
343
344 int i;
345 for (i = 0; BITMAPS[i].name != NULL; ++i) {
346 int result = res_create_surface(BITMAPS[i].name, BITMAPS[i].surface);
347 if (result < 0) {
348 LOGE("Missing bitmap %s\n(Code %d)\n", BITMAPS[i].name, result);
349 *BITMAPS[i].surface = NULL;
350 }
351 }
352
353 pthread_t t;
354 pthread_create(&t, NULL, progress_thread, NULL);
355 pthread_create(&t, NULL, input_thread, NULL);
356}
357
358char *ui_copy_image(int icon, int *width, int *height, int *bpp) {
359 pthread_mutex_lock(&gUpdateMutex);
360 draw_background_locked(gBackgroundIcon[icon]);
361 *width = gr_fb_width();
362 *height = gr_fb_height();
363 *bpp = sizeof(gr_pixel) * 8;
364 int size = *width * *height * sizeof(gr_pixel);
365 char *ret = malloc(size);
366 if (ret == NULL) {
367 LOGE("Can't allocate %d bytes for image\n", size);
368 } else {
369 memcpy(ret, gr_fb_data(), size);
370 }
371 pthread_mutex_unlock(&gUpdateMutex);
372 return ret;
373}
374
375void ui_set_background(int icon)
376{
377 pthread_mutex_lock(&gUpdateMutex);
378 gCurrentIcon = gBackgroundIcon[icon];
379 update_screen_locked();
380 pthread_mutex_unlock(&gUpdateMutex);
381}
382
383void ui_show_indeterminate_progress()
384{
385 pthread_mutex_lock(&gUpdateMutex);
386 if (gProgressBarType != PROGRESSBAR_TYPE_INDETERMINATE) {
387 gProgressBarType = PROGRESSBAR_TYPE_INDETERMINATE;
388 update_progress_locked();
389 }
390 pthread_mutex_unlock(&gUpdateMutex);
391}
392
393void ui_show_progress(float portion, int seconds)
394{
395 pthread_mutex_lock(&gUpdateMutex);
396 gProgressBarType = PROGRESSBAR_TYPE_NORMAL;
397 gProgressScopeStart += gProgressScopeSize;
398 gProgressScopeSize = portion;
399 gProgressScopeTime = time(NULL);
400 gProgressScopeDuration = seconds;
401 gProgress = 0;
402 update_progress_locked();
403 pthread_mutex_unlock(&gUpdateMutex);
404}
405
406void ui_set_progress(float fraction)
407{
408 pthread_mutex_lock(&gUpdateMutex);
409 if (fraction < 0.0) fraction = 0.0;
410 if (fraction > 1.0) fraction = 1.0;
411 if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && fraction > gProgress) {
412 // Skip updates that aren't visibly different.
413 int width = gr_get_width(gProgressBarIndeterminate[0]);
414 float scale = width * gProgressScopeSize;
415 if ((int) (gProgress * scale) != (int) (fraction * scale)) {
416 gProgress = fraction;
417 update_progress_locked();
418 }
419 }
420 pthread_mutex_unlock(&gUpdateMutex);
421}
422
423void ui_reset_progress()
424{
425 pthread_mutex_lock(&gUpdateMutex);
426 gProgressBarType = PROGRESSBAR_TYPE_NONE;
427 gProgressScopeStart = gProgressScopeSize = 0;
428 gProgressScopeTime = gProgressScopeDuration = 0;
429 gProgress = 0;
430 update_screen_locked();
431 pthread_mutex_unlock(&gUpdateMutex);
432}
433
434void ui_print(const char *fmt, ...)
435{
436 char buf[256];
437 va_list ap;
438 va_start(ap, fmt);
439 vsnprintf(buf, 256, fmt, ap);
440 va_end(ap);
441
442 fputs(buf, stderr);
443
444 // This can get called before ui_init(), so be careful.
445 pthread_mutex_lock(&gUpdateMutex);
446 if (text_rows > 0 && text_cols > 0) {
447 char *ptr;
448 for (ptr = buf; *ptr != '\0'; ++ptr) {
449 if (*ptr == '\n' || text_col >= text_cols) {
450 text[text_row][text_col] = '\0';
451 text_col = 0;
452 text_row = (text_row + 1) % text_rows;
453 if (text_row == text_top) text_top = (text_top + 1) % text_rows;
454 }
455 if (*ptr != '\n') text[text_row][text_col++] = *ptr;
456 }
457 text[text_row][text_col] = '\0';
458 update_screen_locked();
459 }
460 pthread_mutex_unlock(&gUpdateMutex);
461}
462
463void ui_start_menu(char** headers, char** items) {
464 int i;
465 pthread_mutex_lock(&gUpdateMutex);
466 if (text_rows > 0 && text_cols > 0) {
467 for (i = 0; i < text_rows; ++i) {
468 if (headers[i] == NULL) break;
469 strncpy(menu[i], headers[i], text_cols-1);
470 menu[i][text_cols-1] = '\0';
471 }
472 menu_top = i;
473 for (; i < text_rows; ++i) {
474 if (items[i-menu_top] == NULL) break;
475 strncpy(menu[i], items[i-menu_top], text_cols-1);
476 menu[i][text_cols-1] = '\0';
477 }
478 menu_items = i - menu_top;
479 show_menu = 1;
480 menu_sel = 0;
481 update_screen_locked();
482 }
483 pthread_mutex_unlock(&gUpdateMutex);
484}
485
486int ui_menu_select(int sel) {
487 int old_sel;
488 pthread_mutex_lock(&gUpdateMutex);
489 if (show_menu > 0) {
490 old_sel = menu_sel;
491 menu_sel = sel;
492 if (menu_sel < 0) menu_sel = 0;
493 if (menu_sel >= menu_items) menu_sel = menu_items-1;
494 sel = menu_sel;
495 if (menu_sel != old_sel) update_screen_locked();
496 }
497 pthread_mutex_unlock(&gUpdateMutex);
498 return sel;
499}
500
501void ui_end_menu() {
502 int i;
503 pthread_mutex_lock(&gUpdateMutex);
504 if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
505 show_menu = 0;
506 update_screen_locked();
507 }
508 pthread_mutex_unlock(&gUpdateMutex);
509}
510
511int ui_text_visible()
512{
513 pthread_mutex_lock(&gUpdateMutex);
514 int visible = show_text;
515 pthread_mutex_unlock(&gUpdateMutex);
516 return visible;
517}
518
519int ui_wait_key()
520{
521 pthread_mutex_lock(&key_queue_mutex);
522 while (key_queue_len == 0) {
523 pthread_cond_wait(&key_queue_cond, &key_queue_mutex);
524 }
525
526 int key = key_queue[0];
527 memcpy(&key_queue[0], &key_queue[1], sizeof(int) * --key_queue_len);
528 pthread_mutex_unlock(&key_queue_mutex);
529 return key;
530}
531
532int ui_key_pressed(int key)
533{
534 // This is a volatile static array, don't bother locking
535 return key_pressed[key];
536}
537
538void ui_clear_key_queue() {
539 pthread_mutex_lock(&key_queue_mutex);
540 key_queue_len = 0;
541 pthread_mutex_unlock(&key_queue_mutex);
542}