diff options
Diffstat (limited to 'ui.c')
| -rw-r--r-- | ui.c | 542 |
1 files changed, 542 insertions, 0 deletions
@@ -0,0 +1,542 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <linux/input.h> +#include <pthread.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/reboot.h> +#include <sys/time.h> +#include <time.h> +#include <unistd.h> + +#include "common.h" +#include "minui/minui.h" + +#define MAX_COLS 64 +#define MAX_ROWS 32 + +#define CHAR_WIDTH 10 +#define CHAR_HEIGHT 18 + +#define PROGRESSBAR_INDETERMINATE_STATES 6 +#define PROGRESSBAR_INDETERMINATE_FPS 15 + +enum { LEFT_SIDE, CENTER_TILE, RIGHT_SIDE, NUM_SIDES }; + +static pthread_mutex_t gUpdateMutex = PTHREAD_MUTEX_INITIALIZER; +static gr_surface gBackgroundIcon[NUM_BACKGROUND_ICONS]; +static gr_surface gProgressBarIndeterminate[PROGRESSBAR_INDETERMINATE_STATES]; +static gr_surface gProgressBarEmpty[NUM_SIDES]; +static gr_surface gProgressBarFill[NUM_SIDES]; + +static const struct { gr_surface* surface; const char *name; } BITMAPS[] = { + { &gBackgroundIcon[BACKGROUND_ICON_UNPACKING], "icon_unpacking" }, + { &gBackgroundIcon[BACKGROUND_ICON_INSTALLING], "icon_installing" }, + { &gBackgroundIcon[BACKGROUND_ICON_ERROR], "icon_error" }, + { &gBackgroundIcon[BACKGROUND_ICON_FIRMWARE_INSTALLING], + "icon_firmware_install" }, + { &gBackgroundIcon[BACKGROUND_ICON_FIRMWARE_ERROR], + "icon_firmware_error" }, + { &gProgressBarIndeterminate[0], "indeterminate1" }, + { &gProgressBarIndeterminate[1], "indeterminate2" }, + { &gProgressBarIndeterminate[2], "indeterminate3" }, + { &gProgressBarIndeterminate[3], "indeterminate4" }, + { &gProgressBarIndeterminate[4], "indeterminate5" }, + { &gProgressBarIndeterminate[5], "indeterminate6" }, + { &gProgressBarEmpty[LEFT_SIDE], "progress_bar_empty_left_round" }, + { &gProgressBarEmpty[CENTER_TILE], "progress_bar_empty" }, + { &gProgressBarEmpty[RIGHT_SIDE], "progress_bar_empty_right_round" }, + { &gProgressBarFill[LEFT_SIDE], "progress_bar_left_round" }, + { &gProgressBarFill[CENTER_TILE], "progress_bar_fill" }, + { &gProgressBarFill[RIGHT_SIDE], "progress_bar_right_round" }, + { NULL, NULL }, +}; + +static gr_surface gCurrentIcon = NULL; + +static enum ProgressBarType { + PROGRESSBAR_TYPE_NONE, + PROGRESSBAR_TYPE_INDETERMINATE, + PROGRESSBAR_TYPE_NORMAL, +} gProgressBarType = PROGRESSBAR_TYPE_NONE; + +// Progress bar scope of current operation +static float gProgressScopeStart = 0, gProgressScopeSize = 0, gProgress = 0; +static time_t gProgressScopeTime, gProgressScopeDuration; + +// Set to 1 when both graphics pages are the same (except for the progress bar) +static int gPagesIdentical = 0; + +// Log text overlay, displayed when a magic key is pressed +static char text[MAX_ROWS][MAX_COLS]; +static int text_cols = 0, text_rows = 0; +static int text_col = 0, text_row = 0, text_top = 0; +static int show_text = 0; + +static char menu[MAX_ROWS][MAX_COLS]; +static int show_menu = 0; +static int menu_top = 0, menu_items = 0, menu_sel = 0; + +// Key event input queue +static pthread_mutex_t key_queue_mutex = PTHREAD_MUTEX_INITIALIZER; +static pthread_cond_t key_queue_cond = PTHREAD_COND_INITIALIZER; +static int key_queue[256], key_queue_len = 0; +static volatile char key_pressed[KEY_MAX + 1]; + +// Clear the screen and draw the currently selected background icon (if any). +// Should only be called with gUpdateMutex locked. +static void draw_background_locked(gr_surface icon) +{ + gPagesIdentical = 0; + gr_color(0, 0, 0, 255); + gr_fill(0, 0, gr_fb_width(), gr_fb_height()); + + if (icon) { + int iconWidth = gr_get_width(icon); + int iconHeight = gr_get_height(icon); + int iconX = (gr_fb_width() - iconWidth) / 2; + int iconY = (gr_fb_height() - iconHeight) / 2; + gr_blit(icon, 0, 0, iconWidth, iconHeight, iconX, iconY); + } +} + +// Draw the progress bar (if any) on the screen. Does not flip pages. +// Should only be called with gUpdateMutex locked. +static void draw_progress_locked() +{ + if (gProgressBarType == PROGRESSBAR_TYPE_NONE) return; + + int iconHeight = gr_get_height(gBackgroundIcon[BACKGROUND_ICON_INSTALLING]); + int width = gr_get_width(gProgressBarIndeterminate[0]); + int height = gr_get_height(gProgressBarIndeterminate[0]); + + int dx = (gr_fb_width() - width)/2; + int dy = (3*gr_fb_height() + iconHeight - 2*height)/4; + + // Erase behind the progress bar (in case this was a progress-only update) + gr_color(0, 0, 0, 255); + gr_fill(dx, dy, width, height); + + if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL) { + float progress = gProgressScopeStart + gProgress * gProgressScopeSize; + int pos = (int) (progress * width); + + gr_surface s = (pos ? gProgressBarFill : gProgressBarEmpty)[LEFT_SIDE]; + gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx, dy); + + int x = gr_get_width(s); + while (x + (int) gr_get_width(gProgressBarEmpty[RIGHT_SIDE]) < width) { + s = (pos > x ? gProgressBarFill : gProgressBarEmpty)[CENTER_TILE]; + gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx + x, dy); + x += gr_get_width(s); + } + + s = (pos > x ? gProgressBarFill : gProgressBarEmpty)[RIGHT_SIDE]; + gr_blit(s, 0, 0, gr_get_width(s), gr_get_height(s), dx + x, dy); + } + + if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE) { + static int frame = 0; + gr_blit(gProgressBarIndeterminate[frame], 0, 0, width, height, dx, dy); + frame = (frame + 1) % PROGRESSBAR_INDETERMINATE_STATES; + } +} + +static void draw_text_line(int row, const char* t) { + if (t[0] != '\0') { + gr_text(0, (row+1)*CHAR_HEIGHT-1, t); + } +} + +// Redraw everything on the screen. Does not flip pages. +// Should only be called with gUpdateMutex locked. +static void draw_screen_locked(void) +{ + draw_background_locked(gCurrentIcon); + draw_progress_locked(); + + if (show_text) { + gr_color(0, 0, 0, 160); + gr_fill(0, 0, gr_fb_width(), gr_fb_height()); + + int i = 0; + if (show_menu) { + gr_color(64, 96, 255, 255); + gr_fill(0, (menu_top+menu_sel) * CHAR_HEIGHT, + gr_fb_width(), (menu_top+menu_sel+1)*CHAR_HEIGHT+1); + + for (; i < menu_top + menu_items; ++i) { + if (i == menu_top + menu_sel) { + gr_color(255, 255, 255, 255); + draw_text_line(i, menu[i]); + gr_color(64, 96, 255, 255); + } else { + draw_text_line(i, menu[i]); + } + } + gr_fill(0, i*CHAR_HEIGHT+CHAR_HEIGHT/2-1, + gr_fb_width(), i*CHAR_HEIGHT+CHAR_HEIGHT/2+1); + ++i; + } + + gr_color(255, 255, 0, 255); + + for (; i < text_rows; ++i) { + draw_text_line(i, text[(i+text_top) % text_rows]); + } + } +} + +// Redraw everything on the screen and flip the screen (make it visible). +// Should only be called with gUpdateMutex locked. +static void update_screen_locked(void) +{ + draw_screen_locked(); + gr_flip(); +} + +// Updates only the progress bar, if possible, otherwise redraws the screen. +// Should only be called with gUpdateMutex locked. +static void update_progress_locked(void) +{ + if (show_text || !gPagesIdentical) { + draw_screen_locked(); // Must redraw the whole screen + gPagesIdentical = 1; + } else { + draw_progress_locked(); // Draw only the progress bar + } + gr_flip(); +} + +// Keeps the progress bar updated, even when the process is otherwise busy. +static void *progress_thread(void *cookie) +{ + for (;;) { + usleep(1000000 / PROGRESSBAR_INDETERMINATE_FPS); + pthread_mutex_lock(&gUpdateMutex); + + // update the progress bar animation, if active + // skip this if we have a text overlay (too expensive to update) + if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE && !show_text) { + update_progress_locked(); + } + + // move the progress bar forward on timed intervals, if configured + int duration = gProgressScopeDuration; + if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && duration > 0) { + int elapsed = time(NULL) - gProgressScopeTime; + float progress = 1.0 * elapsed / duration; + if (progress > 1.0) progress = 1.0; + if (progress > gProgress) { + gProgress = progress; + update_progress_locked(); + } + } + + pthread_mutex_unlock(&gUpdateMutex); + } + return NULL; +} + +// Reads input events, handles special hot keys, and adds to the key queue. +static void *input_thread(void *cookie) +{ + int rel_sum = 0; + int fake_key = 0; + for (;;) { + // wait for the next key event + struct input_event ev; + do { + ev_get(&ev, 0); + + if (ev.type == EV_SYN) { + continue; + } else if (ev.type == EV_REL) { + if (ev.code == REL_Y) { + // accumulate the up or down motion reported by + // the trackball. When it exceeds a threshold + // (positive or negative), fake an up/down + // key event. + rel_sum += ev.value; + if (rel_sum > 3) { + fake_key = 1; + ev.type = EV_KEY; + ev.code = KEY_DOWN; + ev.value = 1; + rel_sum = 0; + } else if (rel_sum < -3) { + fake_key = 1; + ev.type = EV_KEY; + ev.code = KEY_UP; + ev.value = 1; + rel_sum = 0; + } + } + } else { + rel_sum = 0; + } + } while (ev.type != EV_KEY || ev.code > KEY_MAX); + + pthread_mutex_lock(&key_queue_mutex); + if (!fake_key) { + // our "fake" keys only report a key-down event (no + // key-up), so don't record them in the key_pressed + // table. + key_pressed[ev.code] = ev.value; + } + fake_key = 0; + const int queue_max = sizeof(key_queue) / sizeof(key_queue[0]); + if (ev.value > 0 && key_queue_len < queue_max) { + key_queue[key_queue_len++] = ev.code; + pthread_cond_signal(&key_queue_cond); + } + pthread_mutex_unlock(&key_queue_mutex); + + // Alt+L or Home+End: toggle log display + int alt = key_pressed[KEY_LEFTALT] || key_pressed[KEY_RIGHTALT]; + if ((alt && ev.code == KEY_L && ev.value > 0) || + (key_pressed[KEY_HOME] && ev.code == KEY_END && ev.value > 0)) { + pthread_mutex_lock(&gUpdateMutex); + show_text = !show_text; + update_screen_locked(); + pthread_mutex_unlock(&gUpdateMutex); + } + + // Green+Menu+Red: reboot immediately + if (ev.code == KEY_DREAM_RED && + key_pressed[KEY_DREAM_MENU] && + key_pressed[KEY_DREAM_GREEN]) { + reboot(RB_AUTOBOOT); + } + } + return NULL; +} + +void ui_init(void) +{ + gr_init(); + ev_init(); + + text_col = text_row = 0; + text_rows = gr_fb_height() / CHAR_HEIGHT; + if (text_rows > MAX_ROWS) text_rows = MAX_ROWS; + text_top = 1; + + text_cols = gr_fb_width() / CHAR_WIDTH; + if (text_cols > MAX_COLS - 1) text_cols = MAX_COLS - 1; + + int i; + for (i = 0; BITMAPS[i].name != NULL; ++i) { + int result = res_create_surface(BITMAPS[i].name, BITMAPS[i].surface); + if (result < 0) { + LOGE("Missing bitmap %s\n(Code %d)\n", BITMAPS[i].name, result); + *BITMAPS[i].surface = NULL; + } + } + + pthread_t t; + pthread_create(&t, NULL, progress_thread, NULL); + pthread_create(&t, NULL, input_thread, NULL); +} + +char *ui_copy_image(int icon, int *width, int *height, int *bpp) { + pthread_mutex_lock(&gUpdateMutex); + draw_background_locked(gBackgroundIcon[icon]); + *width = gr_fb_width(); + *height = gr_fb_height(); + *bpp = sizeof(gr_pixel) * 8; + int size = *width * *height * sizeof(gr_pixel); + char *ret = malloc(size); + if (ret == NULL) { + LOGE("Can't allocate %d bytes for image\n", size); + } else { + memcpy(ret, gr_fb_data(), size); + } + pthread_mutex_unlock(&gUpdateMutex); + return ret; +} + +void ui_set_background(int icon) +{ + pthread_mutex_lock(&gUpdateMutex); + gCurrentIcon = gBackgroundIcon[icon]; + update_screen_locked(); + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_show_indeterminate_progress() +{ + pthread_mutex_lock(&gUpdateMutex); + if (gProgressBarType != PROGRESSBAR_TYPE_INDETERMINATE) { + gProgressBarType = PROGRESSBAR_TYPE_INDETERMINATE; + update_progress_locked(); + } + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_show_progress(float portion, int seconds) +{ + pthread_mutex_lock(&gUpdateMutex); + gProgressBarType = PROGRESSBAR_TYPE_NORMAL; + gProgressScopeStart += gProgressScopeSize; + gProgressScopeSize = portion; + gProgressScopeTime = time(NULL); + gProgressScopeDuration = seconds; + gProgress = 0; + update_progress_locked(); + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_set_progress(float fraction) +{ + pthread_mutex_lock(&gUpdateMutex); + if (fraction < 0.0) fraction = 0.0; + if (fraction > 1.0) fraction = 1.0; + if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && fraction > gProgress) { + // Skip updates that aren't visibly different. + int width = gr_get_width(gProgressBarIndeterminate[0]); + float scale = width * gProgressScopeSize; + if ((int) (gProgress * scale) != (int) (fraction * scale)) { + gProgress = fraction; + update_progress_locked(); + } + } + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_reset_progress() +{ + pthread_mutex_lock(&gUpdateMutex); + gProgressBarType = PROGRESSBAR_TYPE_NONE; + gProgressScopeStart = gProgressScopeSize = 0; + gProgressScopeTime = gProgressScopeDuration = 0; + gProgress = 0; + update_screen_locked(); + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_print(const char *fmt, ...) +{ + char buf[256]; + va_list ap; + va_start(ap, fmt); + vsnprintf(buf, 256, fmt, ap); + va_end(ap); + + fputs(buf, stderr); + + // This can get called before ui_init(), so be careful. + pthread_mutex_lock(&gUpdateMutex); + if (text_rows > 0 && text_cols > 0) { + char *ptr; + for (ptr = buf; *ptr != '\0'; ++ptr) { + if (*ptr == '\n' || text_col >= text_cols) { + text[text_row][text_col] = '\0'; + text_col = 0; + text_row = (text_row + 1) % text_rows; + if (text_row == text_top) text_top = (text_top + 1) % text_rows; + } + if (*ptr != '\n') text[text_row][text_col++] = *ptr; + } + text[text_row][text_col] = '\0'; + update_screen_locked(); + } + pthread_mutex_unlock(&gUpdateMutex); +} + +void ui_start_menu(char** headers, char** items) { + int i; + pthread_mutex_lock(&gUpdateMutex); + if (text_rows > 0 && text_cols > 0) { + for (i = 0; i < text_rows; ++i) { + if (headers[i] == NULL) break; + strncpy(menu[i], headers[i], text_cols-1); + menu[i][text_cols-1] = '\0'; + } + menu_top = i; + for (; i < text_rows; ++i) { + if (items[i-menu_top] == NULL) break; + strncpy(menu[i], items[i-menu_top], text_cols-1); + menu[i][text_cols-1] = '\0'; + } + menu_items = i - menu_top; + show_menu = 1; + menu_sel = 0; + update_screen_locked(); + } + pthread_mutex_unlock(&gUpdateMutex); +} + +int ui_menu_select(int sel) { + int old_sel; + pthread_mutex_lock(&gUpdateMutex); + if (show_menu > 0) { + old_sel = menu_sel; + menu_sel = sel; + if (menu_sel < 0) menu_sel = 0; + if (menu_sel >= menu_items) menu_sel = menu_items-1; + sel = menu_sel; + if (menu_sel != old_sel) update_screen_locked(); + } + pthread_mutex_unlock(&gUpdateMutex); + return sel; +} + +void ui_end_menu() { + int i; + pthread_mutex_lock(&gUpdateMutex); + if (show_menu > 0 && text_rows > 0 && text_cols > 0) { + show_menu = 0; + update_screen_locked(); + } + pthread_mutex_unlock(&gUpdateMutex); +} + +int ui_text_visible() +{ + pthread_mutex_lock(&gUpdateMutex); + int visible = show_text; + pthread_mutex_unlock(&gUpdateMutex); + return visible; +} + +int ui_wait_key() +{ + pthread_mutex_lock(&key_queue_mutex); + while (key_queue_len == 0) { + pthread_cond_wait(&key_queue_cond, &key_queue_mutex); + } + + int key = key_queue[0]; + memcpy(&key_queue[0], &key_queue[1], sizeof(int) * --key_queue_len); + pthread_mutex_unlock(&key_queue_mutex); + return key; +} + +int ui_key_pressed(int key) +{ + // This is a volatile static array, don't bother locking + return key_pressed[key]; +} + +void ui_clear_key_queue() { + pthread_mutex_lock(&key_queue_mutex); + key_queue_len = 0; + pthread_mutex_unlock(&key_queue_mutex); +} |