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platform_bootable_recovery/wear_ui.cpp
Tao Bao b723f4f38f res: Embed FPS into icon_installing.png. 
We allow vendor-specific icon installing image but have defined private
animation_fps that can't be overridden. This CL changes the image
generator to optionally embed FPS (otherwise use the default value of
20) into the generated image.

For wear devices, they are using individual images instead of the
interlaced one. Change the animation_fps from private to protected so
that it can be customized.

Bug: 26009230
Change-Id: I9fbf64ec717029d4c54f72316f6cb079e8dbfb5e
2015-12-16 11:35:52 -08:00

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/*
* Copyright (C) 2014 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 <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 <vector>
#include "common.h"
#include "device.h"
#include "minui/minui.h"
#include "wear_ui.h"
#include "ui.h"
#include "cutils/properties.h"
#include "android-base/strings.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 WearRecoveryUI* 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;
}
WearRecoveryUI::WearRecoveryUI() :
progress_bar_height(3),
progress_bar_width(200),
progress_bar_y(259),
outer_height(0),
outer_width(0),
menu_unusable_rows(0),
intro_frames(22),
loop_frames(60),
animation_fps(30),
currentIcon(NONE),
intro_done(false),
current_frame(0),
rtl_locale(false),
progressBarType(EMPTY),
progressScopeStart(0),
progressScopeSize(0),
progress(0),
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_items(0),
menu_sel(0) {
for (size_t i = 0; i < 5; i++)
backgroundIcon[i] = NULL;
pthread_mutex_init(&updateMutex, NULL);
self = this;
}
// Draw background frame on the screen. Does not flip pages.
// Should only be called with updateMutex locked.
void WearRecoveryUI::draw_background_locked(Icon icon)
{
gr_color(0, 0, 0, 255);
gr_fill(0, 0, gr_fb_width(), gr_fb_height());
if (icon) {
GRSurface* surface;
if (icon == INSTALLING_UPDATE || icon == ERASING) {
if (!intro_done) {
surface = introFrames[current_frame];
} else {
surface = loopFrames[current_frame];
}
}
else {
surface = backgroundIcon[icon];
}
int width = gr_get_width(surface);
int height = gr_get_height(surface);
int x = (gr_fb_width() - width) / 2;
int y = (gr_fb_height() - height) / 2;
gr_blit(surface, 0, 0, width, height, x, y);
}
}
// Draw the progress bar (if any) on the screen. Does not flip pages.
// Should only be called with updateMutex locked.
void WearRecoveryUI::draw_progress_locked()
{
if (currentIcon == ERROR) return;
if (progressBarType != DETERMINATE) return;
int width = progress_bar_width;
int height = progress_bar_height;
int dx = (gr_fb_width() - width)/2;
int dy = progress_bar_y;
float p = progressScopeStart + progress * progressScopeSize;
int pos = (int) (p * width);
gr_color(0x43, 0x43, 0x43, 0xff);
gr_fill(dx, dy, dx + width, dy + height);
if (pos > 0) {
gr_color(0x02, 0xa8, 0xf3, 255);
if (rtl_locale) {
// Fill the progress bar from right to left.
gr_fill(dx + width - pos, dy, dx + width, dy + height);
} else {
// Fill the progress bar from left to right.
gr_fill(dx, dy, dx + pos, dy + height);
}
}
}
void WearRecoveryUI::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;
}
}
void WearRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) {
gr_text(x, *y, line, bold);
*y += char_height + 4;
}
void WearRecoveryUI::DrawTextLines(int x, int* y, const char* const* lines) {
for (size_t i = 0; lines != nullptr && lines[i] != nullptr; ++i) {
DrawTextLine(x, y, lines[i], false);
}
}
static const char* HEADERS[] = {
"Swipe up/down to move.",
"Swipe left/right to select.",
"",
NULL
};
void WearRecoveryUI::draw_screen_locked()
{
draw_background_locked(currentIcon);
draw_progress_locked();
char cur_selection_str[50];
if (show_text) {
SetColor(TEXT_FILL);
gr_fill(0, 0, gr_fb_width(), gr_fb_height());
int y = outer_height;
int x = outer_width;
if (show_menu) {
char recovery_fingerprint[PROPERTY_VALUE_MAX];
property_get("ro.bootimage.build.fingerprint", recovery_fingerprint, "");
SetColor(HEADER);
DrawTextLine(x + 4, &y, "Android Recovery", true);
for (auto& chunk: android::base::Split(recovery_fingerprint, ":")) {
DrawTextLine(x +4, &y, chunk.c_str(), false);
}
// This is actually the help strings.
DrawTextLines(x + 4, &y, HEADERS);
SetColor(HEADER);
DrawTextLines(x + 4, &y, menu_headers_);
// Show the current menu item number in relation to total number if
// items don't fit on the screen.
if (menu_items > menu_end - menu_start) {
sprintf(cur_selection_str, "Current item: %d/%d", menu_sel + 1, menu_items);
gr_text(x+4, y, cur_selection_str, 1);
y += char_height+4;
}
// Menu begins here
SetColor(MENU);
for (int i = menu_start; i < menu_end; ++i) {
if (i == menu_sel) {
// draw the highlight bar
SetColor(MENU_SEL_BG);
gr_fill(x, y-2, gr_fb_width()-x, y+char_height+2);
// white text of selected item
SetColor(MENU_SEL_FG);
if (menu[i][0]) gr_text(x+4, y, menu[i], 1);
SetColor(MENU);
} else {
if (menu[i][0]) gr_text(x+4, y, menu[i], 0);
}
y += char_height+4;
}
SetColor(MENU);
y += 4;
gr_fill(0, y, gr_fb_width(), y+2);
y += 4;
}
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;
size_t count = 0;
for (int ty = gr_fb_height() - char_height - outer_height;
ty > y+2 && count < text_rows;
ty -= char_height, ++count) {
gr_text(x+4, ty, text[row], 0);
--row;
if (row < 0) row = text_rows-1;
}
}
}
void WearRecoveryUI::update_screen_locked()
{
draw_screen_locked();
gr_flip();
}
// Keeps the progress bar updated, even when the process is otherwise busy.
void* WearRecoveryUI::progress_thread(void *cookie) {
self->progress_loop();
return NULL;
}
void WearRecoveryUI::progress_loop() {
double interval = 1.0 / animation_fps;
for (;;) {
double start = now();
pthread_mutex_lock(&updateMutex);
int redraw = 0;
if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING)
&& !show_text) {
if (!intro_done) {
if (current_frame == intro_frames - 1) {
intro_done = true;
current_frame = 0;
} else {
current_frame++;
}
} else {
current_frame = (current_frame + 1) % loop_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_screen_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 WearRecoveryUI::LoadBitmap(const char* filename, GRSurface** surface) {
int result = res_create_display_surface(filename, surface);
if (result < 0) {
LOGE("missing bitmap %s\n(Code %d)\n", filename, result);
}
}
void WearRecoveryUI::Init()
{
gr_init();
gr_font_size(&char_width, &char_height);
text_col = text_row = 0;
text_rows = (gr_fb_height()) / char_height;
visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height;
if (text_rows > kMaxRows) text_rows = kMaxRows;
text_top = 1;
text_cols = (gr_fb_width() - (outer_width * 2)) / char_width;
if (text_cols > kMaxCols - 1) text_cols = kMaxCols - 1;
LoadBitmap("icon_installing", &backgroundIcon[INSTALLING_UPDATE]);
backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE];
LoadBitmap("icon_error", &backgroundIcon[ERROR]);
backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
introFrames = (GRSurface**)malloc(intro_frames * sizeof(GRSurface*));
for (int i = 0; i < intro_frames; ++i) {
char filename[40];
sprintf(filename, "intro%02d", i);
LoadBitmap(filename, introFrames + i);
}
loopFrames = (GRSurface**)malloc(loop_frames * sizeof(GRSurface*));
for (int i = 0; i < loop_frames; ++i) {
char filename[40];
sprintf(filename, "loop%02d", i);
LoadBitmap(filename, loopFrames + i);
}
pthread_create(&progress_t, NULL, progress_thread, NULL);
RecoveryUI::Init();
}
void WearRecoveryUI::SetLocale(const char* locale) {
if (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);
}
}
void WearRecoveryUI::SetBackground(Icon icon)
{
pthread_mutex_lock(&updateMutex);
currentIcon = icon;
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::SetProgressType(ProgressType type)
{
pthread_mutex_lock(&updateMutex);
if (progressBarType != type) {
progressBarType = type;
}
progressScopeStart = 0;
progressScopeSize = 0;
progress = 0;
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::ShowProgress(float portion, float seconds)
{
pthread_mutex_lock(&updateMutex);
progressBarType = DETERMINATE;
progressScopeStart += progressScopeSize;
progressScopeSize = portion;
progressScopeTime = now();
progressScopeDuration = seconds;
progress = 0;
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::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 = progress_bar_width;
float scale = width * progressScopeSize;
if ((int) (progress * scale) != (int) (fraction * scale)) {
progress = fraction;
update_screen_locked();
}
}
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::SetStage(int current, int max)
{
}
void WearRecoveryUI::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 WearRecoveryUI::StartMenu(const char* const * headers, const char* const * items,
int initial_selection) {
pthread_mutex_lock(&updateMutex);
if (text_rows > 0 && text_cols > 0) {
menu_headers_ = headers;
size_t i = 0;
// "i < text_rows" is removed from the loop termination condition,
// which is different from the one in ScreenRecoveryUI::StartMenu().
// Because WearRecoveryUI supports scrollable menu, it's fine to have
// more entries than text_rows. The menu may be truncated otherwise.
// Bug: 23752519
for (; items[i] != nullptr; i++) {
strncpy(menu[i], items[i], text_cols - 1);
menu[i][text_cols - 1] = '\0';
}
menu_items = i;
show_menu = 1;
menu_sel = initial_selection;
menu_start = 0;
menu_end = visible_text_rows - 1 - menu_unusable_rows;
if (menu_items <= menu_end)
menu_end = menu_items;
update_screen_locked();
}
pthread_mutex_unlock(&updateMutex);
}
int WearRecoveryUI::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;
if (menu_sel < menu_start) {
menu_start--;
menu_end--;
} else if (menu_sel >= menu_end && menu_sel < menu_items) {
menu_end++;
menu_start++;
}
sel = menu_sel;
if (menu_sel != old_sel) update_screen_locked();
}
pthread_mutex_unlock(&updateMutex);
return sel;
}
void WearRecoveryUI::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 WearRecoveryUI::IsTextVisible()
{
pthread_mutex_lock(&updateMutex);
int visible = show_text;
pthread_mutex_unlock(&updateMutex);
return visible;
}
bool WearRecoveryUI::WasTextEverVisible()
{
pthread_mutex_lock(&updateMutex);
int ever_visible = show_text_ever;
pthread_mutex_unlock(&updateMutex);
return ever_visible;
}
void WearRecoveryUI::ShowText(bool visible)
{
pthread_mutex_lock(&updateMutex);
// Don't show text during ota install or factory reset
if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
pthread_mutex_unlock(&updateMutex);
return;
}
show_text = visible;
if (show_text) show_text_ever = 1;
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::Redraw()
{
pthread_mutex_lock(&updateMutex);
update_screen_locked();
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::ShowFile(FILE* fp) {
std::vector<long> offsets;
offsets.push_back(ftell(fp));
ClearText();
struct stat sb;
fstat(fileno(fp), &sb);
bool show_prompt = false;
while (true) {
if (show_prompt) {
Print("--(%d%% of %d bytes)--",
static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))),
static_cast<int>(sb.st_size));
Redraw();
while (show_prompt) {
show_prompt = false;
int key = WaitKey();
if (key == KEY_POWER || key == KEY_ENTER) {
return;
} else if (key == KEY_UP || key == KEY_VOLUMEUP) {
if (offsets.size() <= 1) {
show_prompt = true;
} else {
offsets.pop_back();
fseek(fp, offsets.back(), SEEK_SET);
}
} else {
if (feof(fp)) {
return;
}
offsets.push_back(ftell(fp));
}
}
ClearText();
}
int ch = getc(fp);
if (ch == EOF) {
text_row = text_top = text_rows - 2;
show_prompt = true;
} else {
PutChar(ch);
if (text_col == 0 && text_row >= text_rows - 2) {
text_top = text_row;
show_prompt = true;
}
}
}
}
void WearRecoveryUI::PutChar(char ch) {
pthread_mutex_lock(&updateMutex);
if (ch != '\n') text[text_row][text_col++] = ch;
if (ch == '\n' || text_col >= text_cols) {
text_col = 0;
++text_row;
}
pthread_mutex_unlock(&updateMutex);
}
void WearRecoveryUI::ShowFile(const char* filename) {
FILE* fp = fopen_path(filename, "re");
if (fp == nullptr) {
Print(" Unable to open %s: %s\n", filename, strerror(errno));
return;
}
ShowFile(fp);
fclose(fp);
}
void WearRecoveryUI::ClearText() {
pthread_mutex_lock(&updateMutex);
text_col = 0;
text_row = 0;
text_top = 1;
for (size_t i = 0; i < text_rows; ++i) {
memset(text[i], 0, text_cols + 1);
}
pthread_mutex_unlock(&updateMutex);
}
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