/*
* 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;
// 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;
}
}
// 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(), text_rows * CHAR_HEIGHT);
gr_color(255, 255, 0, 255);
int i;
for (i = 0; i < text_rows; ++i) {
const char* line = text[(i + text_top) % text_rows];
if (line[0] != '\0') gr_text(0, (i + 1) * CHAR_HEIGHT - 1, line);
}
}
}
// 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)
{
for (;;) {
// wait for the next key event
struct input_event ev;
do { ev_get(&ev, 0); } while (ev.type != EV_KEY || ev.code > KEY_MAX);
pthread_mutex_lock(&key_queue_mutex);
key_pressed[ev.code] = ev.value;
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: toggle log display
int alt = key_pressed[KEY_LEFTALT] || key_pressed[KEY_RIGHTALT];
if (alt && ev.code == KEY_L && 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_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);
}
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];
}
