diff options
Diffstat (limited to 'screen_ui.cpp')
| -rw-r--r-- | screen_ui.cpp | 633 |
1 files changed, 633 insertions, 0 deletions
diff --git a/screen_ui.cpp b/screen_ui.cpp new file mode 100644 index 000000000..e6a31db28 --- /dev/null +++ b/screen_ui.cpp @@ -0,0 +1,633 @@ +/* + * Copyright (C) 2011 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 <errno.h> +#include <fcntl.h> +#include <linux/input.h> +#include <pthread.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> +#include <time.h> +#include <unistd.h> + +#include "common.h" +#include <cutils/android_reboot.h> +#include "minui/minui.h" +#include "recovery_ui.h" +#include "ui.h" +#include "screen_ui.h" + +#define CHAR_WIDTH 10 +#define CHAR_HEIGHT 18 + +#define UI_WAIT_KEY_TIMEOUT_SEC 120 + +UIParameters ui_parameters = { + 6, // indeterminate progress bar frames + 20, // fps + 7, // installation icon frames (0 == static image) + 13, 190, // installation icon overlay offset +}; + +// There's only (at most) one of these objects, and global callbacks +// (for pthread_create, and the input event system) need to find it, +// so use a global variable. +static ScreenRecoveryUI* self = NULL; + +// Return the current time as a double (including fractions of a second). +static double now() { + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec + tv.tv_usec / 1000000.0; +} + +ScreenRecoveryUI::ScreenRecoveryUI() : + currentIcon(NONE), + installingFrame(0), + progressBarType(EMPTY), + progressScopeStart(0), + progressScopeSize(0), + progress(0), + pagesIdentical(false), + text_cols(0), + text_rows(0), + text_col(0), + text_row(0), + text_top(0), + show_text(false), + show_text_ever(false), + show_menu(false), + menu_top(0), + menu_items(0), + menu_sel(0), + key_queue_len(0) { + pthread_mutex_init(&updateMutex, NULL); + pthread_mutex_init(&key_queue_mutex, NULL); + pthread_cond_init(&key_queue_cond, NULL); + self = this; +} + +// Draw the given frame over the installation overlay animation. The +// background is not cleared or draw with the base icon first; we +// assume that the frame already contains some other frame of the +// animation. Does nothing if no overlay animation is defined. +// Should only be called with updateMutex locked. +void ScreenRecoveryUI::draw_install_overlay_locked(int frame) { + if (installationOverlay == NULL) return; + gr_surface surface = installationOverlay[frame]; + int iconWidth = gr_get_width(surface); + int iconHeight = gr_get_height(surface); + gr_blit(surface, 0, 0, iconWidth, iconHeight, + ui_parameters.install_overlay_offset_x, + ui_parameters.install_overlay_offset_y); +} + +// Clear the screen and draw the currently selected background icon (if any). +// Should only be called with updateMutex locked. +void ScreenRecoveryUI::draw_background_locked(Icon icon) +{ + pagesIdentical = false; + gr_color(0, 0, 0, 255); + gr_fill(0, 0, gr_fb_width(), gr_fb_height()); + + if (icon) { + gr_surface surface = backgroundIcon[icon]; + int iconWidth = gr_get_width(surface); + int iconHeight = gr_get_height(surface); + int iconX = (gr_fb_width() - iconWidth) / 2; + int iconY = (gr_fb_height() - iconHeight) / 2; + gr_blit(surface, 0, 0, iconWidth, iconHeight, iconX, iconY); + if (icon == INSTALLING) { + draw_install_overlay_locked(installingFrame); + } + } +} + +// Draw the progress bar (if any) on the screen. Does not flip pages. +// Should only be called with updateMutex locked. +void ScreenRecoveryUI::draw_progress_locked() +{ + if (currentIcon == INSTALLING) { + draw_install_overlay_locked(installingFrame); + } + + if (progressBarType != EMPTY) { + int iconHeight = gr_get_height(backgroundIcon[INSTALLING]); + int width = gr_get_width(progressBarEmpty); + int height = gr_get_height(progressBarEmpty); + + 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 (progressBarType == DETERMINATE) { + float p = progressScopeStart + progress * progressScopeSize; + int pos = (int) (p * width); + + if (pos > 0) { + gr_blit(progressBarFill, 0, 0, pos, height, dx, dy); + } + if (pos < width-1) { + gr_blit(progressBarEmpty, pos, 0, width-pos, height, dx+pos, dy); + } + } + + if (progressBarType == INDETERMINATE) { + static int frame = 0; + gr_blit(progressBarIndeterminate[frame], 0, 0, width, height, dx, dy); + frame = (frame + 1) % ui_parameters.indeterminate_frames; + } + } +} + +void ScreenRecoveryUI::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 updateMutex locked. +void ScreenRecoveryUI::draw_screen_locked() +{ + draw_background_locked(currentIcon); + 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 updateMutex locked. +void ScreenRecoveryUI::update_screen_locked() +{ + draw_screen_locked(); + gr_flip(); +} + +// Updates only the progress bar, if possible, otherwise redraws the screen. +// Should only be called with updateMutex locked. +void ScreenRecoveryUI::update_progress_locked() +{ + if (show_text || !pagesIdentical) { + draw_screen_locked(); // Must redraw the whole screen + pagesIdentical = true; + } else { + draw_progress_locked(); // Draw only the progress bar and overlays + } + gr_flip(); +} + +// Keeps the progress bar updated, even when the process is otherwise busy. +void* ScreenRecoveryUI::progress_thread(void *cookie) +{ + double interval = 1.0 / ui_parameters.update_fps; + for (;;) { + double start = now(); + pthread_mutex_lock(&self->updateMutex); + + int redraw = 0; + + // update the installation animation, if active + // skip this if we have a text overlay (too expensive to update) + if (self->currentIcon == INSTALLING && + ui_parameters.installing_frames > 0 && + !self->show_text) { + self->installingFrame = + (self->installingFrame + 1) % ui_parameters.installing_frames; + redraw = 1; + } + + // update the progress bar animation, if active + // skip this if we have a text overlay (too expensive to update) + if (self->progressBarType == INDETERMINATE && !self->show_text) { + redraw = 1; + } + + // move the progress bar forward on timed intervals, if configured + int duration = self->progressScopeDuration; + if (self->progressBarType == DETERMINATE && duration > 0) { + double elapsed = now() - self->progressScopeTime; + float progress = 1.0 * elapsed / duration; + if (progress > 1.0) progress = 1.0; + if (progress > progress) { + progress = progress; + redraw = 1; + } + } + + if (redraw) self->update_progress_locked(); + + pthread_mutex_unlock(&self->updateMutex); + double end = now(); + // minimum of 20ms delay between frames + double delay = interval - (end-start); + if (delay < 0.02) delay = 0.02; + usleep((long)(delay * 1000000)); + } + return NULL; +} + +int ScreenRecoveryUI::input_callback(int fd, short revents, void* data) +{ + struct input_event ev; + int ret; + int fake_key = 0; + + ret = ev_get_input(fd, revents, &ev); + if (ret) + return -1; + + if (ev.type == EV_SYN) { + return 0; + } 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. + self->rel_sum += ev.value; + if (self->rel_sum > 3) { + fake_key = 1; + ev.type = EV_KEY; + ev.code = KEY_DOWN; + ev.value = 1; + self->rel_sum = 0; + } else if (self->rel_sum < -3) { + fake_key = 1; + ev.type = EV_KEY; + ev.code = KEY_UP; + ev.value = 1; + self->rel_sum = 0; + } + } + } else { + self->rel_sum = 0; + } + + if (ev.type != EV_KEY || ev.code > KEY_MAX) + return 0; + + pthread_mutex_lock(&self->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. + self->key_pressed[ev.code] = ev.value; + } + const int queue_max = sizeof(self->key_queue) / sizeof(self->key_queue[0]); + if (ev.value > 0 && self->key_queue_len < queue_max) { + self->key_queue[self->key_queue_len++] = ev.code; + pthread_cond_signal(&self->key_queue_cond); + } + pthread_mutex_unlock(&self->key_queue_mutex); + + if (ev.value > 0 && device_toggle_display(self->key_pressed, ev.code)) { + pthread_mutex_lock(&self->updateMutex); + self->show_text = !self->show_text; + if (self->show_text) self->show_text_ever = true; + self->update_screen_locked(); + pthread_mutex_unlock(&self->updateMutex); + } + + if (ev.value > 0 && device_reboot_now(self->key_pressed, ev.code)) { + android_reboot(ANDROID_RB_RESTART, 0, 0); + } + + return 0; +} + +// Reads input events, handles special hot keys, and adds to the key queue. +void* ScreenRecoveryUI::input_thread(void *cookie) +{ + for (;;) { + if (!ev_wait(-1)) + ev_dispatch(); + } + return NULL; +} + +void ScreenRecoveryUI::LoadBitmap(const char* filename, gr_surface* surface) { + int result = res_create_surface(filename, surface); + if (result < 0) { + LOGE("missing bitmap %s\n(Code %d)\n", filename, result); + } +} + +void ScreenRecoveryUI::Init() +{ + gr_init(); + ev_init(input_callback, NULL); + + text_col = text_row = 0; + text_rows = gr_fb_height() / CHAR_HEIGHT; + if (text_rows > kMaxRows) text_rows = kMaxRows; + text_top = 1; + + text_cols = gr_fb_width() / CHAR_WIDTH; + if (text_cols > kMaxCols - 1) text_cols = kMaxCols - 1; + + LoadBitmap("icon_installing", &backgroundIcon[INSTALLING]); + LoadBitmap("icon_error", &backgroundIcon[ERROR]); + LoadBitmap("progress_empty", &progressBarEmpty); + LoadBitmap("progress_fill", &progressBarFill); + + int i; + + progressBarIndeterminate = (gr_surface*)malloc(ui_parameters.indeterminate_frames * + sizeof(gr_surface)); + for (i = 0; i < ui_parameters.indeterminate_frames; ++i) { + char filename[40]; + // "indeterminate01.png", "indeterminate02.png", ... + sprintf(filename, "indeterminate%02d", i+1); + LoadBitmap(filename, progressBarIndeterminate+i); + } + + if (ui_parameters.installing_frames > 0) { + installationOverlay = (gr_surface*)malloc(ui_parameters.installing_frames * + sizeof(gr_surface)); + for (i = 0; i < ui_parameters.installing_frames; ++i) { + char filename[40]; + // "icon_installing_overlay01.png", + // "icon_installing_overlay02.png", ... + sprintf(filename, "icon_installing_overlay%02d", i+1); + LoadBitmap(filename, installationOverlay+i); + } + + // Adjust the offset to account for the positioning of the + // base image on the screen. + if (backgroundIcon[INSTALLING] != NULL) { + gr_surface bg = backgroundIcon[INSTALLING]; + ui_parameters.install_overlay_offset_x += + (gr_fb_width() - gr_get_width(bg)) / 2; + ui_parameters.install_overlay_offset_y += + (gr_fb_height() - gr_get_height(bg)) / 2; + } + } else { + installationOverlay = NULL; + } + + pthread_create(&progress_t, NULL, progress_thread, NULL); + pthread_create(&input_t, NULL, input_thread, NULL); +} + +void ScreenRecoveryUI::SetBackground(Icon icon) +{ + pthread_mutex_lock(&updateMutex); + currentIcon = icon; + update_screen_locked(); + pthread_mutex_unlock(&updateMutex); +} + +void ScreenRecoveryUI::SetProgressType(ProgressType type) +{ + pthread_mutex_lock(&updateMutex); + if (progressBarType != type) { + progressBarType = type; + update_progress_locked(); + } + pthread_mutex_unlock(&updateMutex); +} + +void ScreenRecoveryUI::ShowProgress(float portion, float seconds) +{ + pthread_mutex_lock(&updateMutex); + progressBarType = DETERMINATE; + progressScopeStart += progressScopeSize; + progressScopeSize = portion; + progressScopeTime = now(); + progressScopeDuration = seconds; + progress = 0; + update_progress_locked(); + pthread_mutex_unlock(&updateMutex); +} + +void ScreenRecoveryUI::SetProgress(float fraction) +{ + pthread_mutex_lock(&updateMutex); + if (fraction < 0.0) fraction = 0.0; + if (fraction > 1.0) fraction = 1.0; + if (progressBarType == DETERMINATE && fraction > progress) { + // Skip updates that aren't visibly different. + int width = gr_get_width(progressBarIndeterminate[0]); + float scale = width * progressScopeSize; + if ((int) (progress * scale) != (int) (fraction * scale)) { + progress = fraction; + update_progress_locked(); + } + } + pthread_mutex_unlock(&updateMutex); +} + +void ScreenRecoveryUI::Print(const char *fmt, ...) +{ + char buf[256]; + va_list ap; + va_start(ap, fmt); + vsnprintf(buf, 256, fmt, ap); + va_end(ap); + + fputs(buf, stdout); + + // This can get called before ui_init(), so be careful. + pthread_mutex_lock(&updateMutex); + 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(&updateMutex); +} + +void ScreenRecoveryUI::StartMenu(const char* const * headers, const char* const * items, + int initial_selection) { + int i; + pthread_mutex_lock(&updateMutex); + 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 = initial_selection; + update_screen_locked(); + } + pthread_mutex_unlock(&updateMutex); +} + +int ScreenRecoveryUI::SelectMenu(int sel) { + int old_sel; + pthread_mutex_lock(&updateMutex); + 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(&updateMutex); + return sel; +} + +void ScreenRecoveryUI::EndMenu() { + int i; + pthread_mutex_lock(&updateMutex); + if (show_menu > 0 && text_rows > 0 && text_cols > 0) { + show_menu = 0; + update_screen_locked(); + } + pthread_mutex_unlock(&updateMutex); +} + +bool ScreenRecoveryUI::IsTextVisible() +{ + pthread_mutex_lock(&updateMutex); + int visible = show_text; + pthread_mutex_unlock(&updateMutex); + return visible; +} + +bool ScreenRecoveryUI::WasTextEverVisible() +{ + pthread_mutex_lock(&updateMutex); + int ever_visible = show_text_ever; + pthread_mutex_unlock(&updateMutex); + return ever_visible; +} + +void ScreenRecoveryUI::ShowText(bool visible) +{ + pthread_mutex_lock(&updateMutex); + show_text = visible; + if (show_text) show_text_ever = 1; + update_screen_locked(); + pthread_mutex_unlock(&updateMutex); +} + +// Return true if USB is connected. +bool ScreenRecoveryUI::usb_connected() { + int fd = open("/sys/class/android_usb/android0/state", O_RDONLY); + if (fd < 0) { + printf("failed to open /sys/class/android_usb/android0/state: %s\n", + strerror(errno)); + return 0; + } + + char buf; + /* USB is connected if android_usb state is CONNECTED or CONFIGURED */ + int connected = (read(fd, &buf, 1) == 1) && (buf == 'C'); + if (close(fd) < 0) { + printf("failed to close /sys/class/android_usb/android0/state: %s\n", + strerror(errno)); + } + return connected; +} + +int ScreenRecoveryUI::WaitKey() +{ + pthread_mutex_lock(&key_queue_mutex); + + // Time out after UI_WAIT_KEY_TIMEOUT_SEC, unless a USB cable is + // plugged in. + do { + struct timeval now; + struct timespec timeout; + gettimeofday(&now, NULL); + timeout.tv_sec = now.tv_sec; + timeout.tv_nsec = now.tv_usec * 1000; + timeout.tv_sec += UI_WAIT_KEY_TIMEOUT_SEC; + + int rc = 0; + while (key_queue_len == 0 && rc != ETIMEDOUT) { + rc = pthread_cond_timedwait(&key_queue_cond, &key_queue_mutex, + &timeout); + } + } while (usb_connected() && key_queue_len == 0); + + int key = -1; + if (key_queue_len > 0) { + key = key_queue[0]; + memcpy(&key_queue[0], &key_queue[1], sizeof(int) * --key_queue_len); + } + pthread_mutex_unlock(&key_queue_mutex); + return key; +} + +bool ScreenRecoveryUI::IsKeyPressed(int key) +{ + // This is a volatile static array, don't bother locking + return key_pressed[key]; +} + +void ScreenRecoveryUI::FlushKeys() { + pthread_mutex_lock(&key_queue_mutex); + key_queue_len = 0; + pthread_mutex_unlock(&key_queue_mutex); +} |