/*
* 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"
#include "recovery_ui.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
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;
static gr_surface gProgressBarFill;
static const struct { gr_surface* surface; const char *name; } BITMAPS[] = {
{ &gBackgroundIcon[BACKGROUND_ICON_INSTALLING], "icon_installing" },
{ &gBackgroundIcon[BACKGROUND_ICON_ERROR], "icon_error" },
{ &gProgressBarIndeterminate[0], "indeterminate1" },
{ &gProgressBarIndeterminate[1], "indeterminate2" },
{ &gProgressBarIndeterminate[2], "indeterminate3" },
{ &gProgressBarIndeterminate[3], "indeterminate4" },
{ &gProgressBarIndeterminate[4], "indeterminate5" },
{ &gProgressBarIndeterminate[5], "indeterminate6" },
{ &gProgressBarEmpty, "progress_empty" },
{ &gProgressBarFill, "progress_fill" },
{ 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(gProgressBarEmpty);
int height = gr_get_height(gProgressBarEmpty);
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);
if (pos > 0) {
gr_blit(gProgressBarFill, 0, 0, pos, height, dx, dy);
}
if (pos < width-1) {
gr_blit(gProgressBarEmpty, pos, 0, width-pos, height, dx+pos, 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);
if (ev.value > 0 && device_toggle_display(key_pressed, ev.code)) {
pthread_mutex_lock(&gUpdateMutex);
show_text = !show_text;
update_screen_locked();
pthread_mutex_unlock(&gUpdateMutex);
}
if (ev.value > 0 && device_reboot_now(key_pressed, ev.code)) {
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) {
if (result == -2) {
LOGI("Bitmap %s missing header\n", BITMAPS[i].name);
} else {
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);
}
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);
}
