/*
* 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 "device.h"
#include "minui/minui.h"
#include "screen_ui.h"
#include "ui.h"
static int char_width;
static int char_height;
// 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),
locale(NULL),
rtl_locale(false),
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),
animation_fps(20),
installing_frames(-1),
stage(-1),
max_stage(-1) {
for (int i = 0; i < 5; i++)
backgroundIcon[i] = NULL;
memset(text, 0, sizeof(text));
pthread_mutex_init(&updateMutex, NULL);
self = this;
}
// 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_clear();
if (icon) {
gr_surface surface = backgroundIcon[icon];
if (icon == INSTALLING_UPDATE || icon == ERASING) {
surface = installation[installingFrame];
}
gr_surface text_surface = backgroundText[icon];
int iconWidth = gr_get_width(surface);
int iconHeight = gr_get_height(surface);
int textWidth = gr_get_width(text_surface);
int textHeight = gr_get_height(text_surface);
int stageHeight = gr_get_height(stageMarkerEmpty);
int sh = (max_stage >= 0) ? stageHeight : 0;
iconX = (gr_fb_width() - iconWidth) / 2;
iconY = (gr_fb_height() - (iconHeight+textHeight+40+sh)) / 2;
int textX = (gr_fb_width() - textWidth) / 2;
int textY = ((gr_fb_height() - (iconHeight+textHeight+40+sh)) / 2) + iconHeight + 40;
gr_blit(surface, 0, 0, iconWidth, iconHeight, iconX, iconY);
if (stageHeight > 0) {
int sw = gr_get_width(stageMarkerEmpty);
int x = (gr_fb_width() - max_stage * gr_get_width(stageMarkerEmpty)) / 2;
int y = iconY + iconHeight + 20;
for (int i = 0; i < max_stage; ++i) {
gr_blit((i < stage) ? stageMarkerFill : stageMarkerEmpty,
0, 0, sw, stageHeight, x, y);
x += sw;
}
}
gr_color(255, 255, 255, 255);
gr_texticon(textX, textY, text_surface);
}
}
// 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 == ERROR) return;
if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
gr_surface icon = installation[installingFrame];
gr_blit(icon, 0, 0, gr_get_width(icon), gr_get_height(icon), iconX, iconY);
}
if (progressBarType != EMPTY) {
int iconHeight = gr_get_height(backgroundIcon[INSTALLING_UPDATE]);
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 (rtl_locale) {
// Fill the progress bar from right to left.
if (pos > 0) {
gr_blit(progressBarFill, width-pos, 0, pos, height, dx+width-pos, dy);
}
if (pos < width-1) {
gr_blit(progressBarEmpty, 0, 0, width-pos, height, dx, dy);
}
} else {
// Fill the progress bar from left to right.
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);
}
}
}
}
}
void ScreenRecoveryUI::SetColor(UIElement e) {
switch (e) {
case HEADER:
gr_color(247, 0, 6, 255);
break;
case MENU:
case MENU_SEL_BG:
gr_color(0, 106, 157, 255);
break;
case MENU_SEL_FG:
gr_color(255, 255, 255, 255);
break;
case LOG:
gr_color(249, 194, 0, 255);
break;
case TEXT_FILL:
gr_color(0, 0, 0, 160);
break;
default:
gr_color(255, 255, 255, 255);
break;
}
}
// Redraw everything on the screen. Does not flip pages.
// Should only be called with updateMutex locked.
void ScreenRecoveryUI::draw_screen_locked()
{
if (!show_text) {
draw_background_locked(currentIcon);
draw_progress_locked();
} else {
gr_color(0, 0, 0, 255);
gr_clear();
int y = 0;
int i = 0;
if (show_menu) {
SetColor(HEADER);
for (; i < menu_top + menu_items; ++i) {
if (i == menu_top) SetColor(MENU);
if (i == menu_top + menu_sel) {
// draw the highlight bar
SetColor(MENU_SEL_BG);
gr_fill(0, y-2, gr_fb_width(), y+char_height+2);
// white text of selected item
SetColor(MENU_SEL_FG);
if (menu[i][0]) gr_text(4, y, menu[i], 1);
SetColor(MENU);
} else {
if (menu[i][0]) gr_text(4, y, menu[i], i < menu_top);
}
y += char_height+4;
}
SetColor(MENU);
y += 4;
gr_fill(0, y, gr_fb_width(), y+2);
y += 4;
++i;
}
SetColor(LOG);
// display from the bottom up, until we hit the top of the
// screen, the bottom of the menu, or we've displayed the
// entire text buffer.
int ty;
int row = (text_top+text_rows-1) % text_rows;
for (int ty = gr_fb_height() - char_height, count = 0;
ty > y+2 && count < text_rows;
ty -= char_height, ++count) {
gr_text(4, ty, text[row], 0);
--row;
if (row < 0) row = text_rows-1;
}
}
}
// 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) {
self->progress_loop();
return NULL;
}
void ScreenRecoveryUI::progress_loop() {
double interval = 1.0 / animation_fps;
for (;;) {
double start = now();
pthread_mutex_lock(&updateMutex);
int redraw = 0;
// update the installation animation, if active
// skip this if we have a text overlay (too expensive to update)
if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) &&
installing_frames > 0 && !show_text) {
installingFrame = (installingFrame + 1) % installing_frames;
redraw = 1;
}
// move the progress bar forward on timed intervals, if configured
int duration = progressScopeDuration;
if (progressBarType == DETERMINATE && duration > 0) {
double elapsed = now() - progressScopeTime;
float p = 1.0 * elapsed / duration;
if (p > 1.0) p = 1.0;
if (p > progress) {
progress = p;
redraw = 1;
}
}
if (redraw) update_progress_locked();
pthread_mutex_unlock(&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));
}
}
void ScreenRecoveryUI::LoadBitmap(const char* filename, gr_surface* surface) {
int result = res_create_display_surface(filename, surface);
if (result < 0) {
LOGE("missing bitmap %s\n(Code %d)\n", filename, result);
}
}
void ScreenRecoveryUI::LoadBitmapArray(const char* filename, int* frames, gr_surface** surface) {
int result = res_create_multi_display_surface(filename, frames, surface);
if (result < 0) {
LOGE("missing bitmap %s\n(Code %d)\n", filename, result);
}
}
void ScreenRecoveryUI::LoadLocalizedBitmap(const char* filename, gr_surface* surface) {
int result = res_create_localized_alpha_surface(filename, locale, surface);
if (result < 0) {
LOGE("missing bitmap %s\n(Code %d)\n", filename, result);
}
}
void ScreenRecoveryUI::Init()
{
gr_init();
gr_font_size(&char_width, &char_height);
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;
backgroundIcon[NONE] = NULL;
LoadBitmapArray("icon_installing", &installing_frames, &installation);
backgroundIcon[INSTALLING_UPDATE] = installing_frames ? installation[0] : NULL;
backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE];
LoadBitmap("icon_error", &backgroundIcon[ERROR]);
backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
LoadBitmap("progress_empty", &progressBarEmpty);
LoadBitmap("progress_fill", &progressBarFill);
LoadBitmap("stage_empty", &stageMarkerEmpty);
LoadBitmap("stage_fill", &stageMarkerFill);
LoadLocalizedBitmap("installing_text", &backgroundText[INSTALLING_UPDATE]);
LoadLocalizedBitmap("erasing_text", &backgroundText[ERASING]);
LoadLocalizedBitmap("no_command_text", &backgroundText[NO_COMMAND]);
LoadLocalizedBitmap("error_text", &backgroundText[ERROR]);
pthread_create(&progress_t, NULL, progress_thread, NULL);
RecoveryUI::Init();
}
void ScreenRecoveryUI::SetLocale(const char* new_locale) {
if (new_locale) {
this->locale = new_locale;
char* lang = strdup(locale);
for (char* p = lang; *p; ++p) {
if (*p == '_') {
*p = '\0';
break;
}
}
// A bit cheesy: keep an explicit list of supported languages
// that are RTL.
if (strcmp(lang, "ar") == 0 || // Arabic
strcmp(lang, "fa") == 0 || // Persian (Farsi)
strcmp(lang, "he") == 0 || // Hebrew (new language code)
strcmp(lang, "iw") == 0 || // Hebrew (old language code)
strcmp(lang, "ur") == 0) { // Urdu
rtl_locale = true;
}
free(lang);
} else {
new_locale = 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;
}
progressScopeStart = 0;
progressScopeSize = 0;
progress = 0;
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(progressBarEmpty);
float scale = width * progressScopeSize;
if ((int) (progress * scale) != (int) (fraction * scale)) {
progress = fraction;
update_progress_locked();
}
}
pthread_mutex_unlock(&updateMutex);
}
void ScreenRecoveryUI::SetStage(int current, int max) {
pthread_mutex_lock(&updateMutex);
stage = current;
max_stage = max;
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);
}
void ScreenRecoveryUI::Redraw()
{
pthread_mutex_lock(&updateMutex);
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}