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-rw-r--r--screen_ui.cpp492
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diff --git a/screen_ui.cpp b/screen_ui.cpp
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+/*
+ * 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"
+
+#define CHAR_WIDTH 10
+#define CHAR_HEIGHT 18
+
+// 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),
+
+ // These values are correct for the default image resources
+ // provided with the android platform. Devices which use
+ // different resources should have a subclass of ScreenRecoveryUI
+ // that overrides Init() to set these values appropriately and
+ // then call the superclass Init().
+ animation_fps(20),
+ indeterminate_frames(6),
+ installing_frames(7),
+ install_overlay_offset_x(13),
+ install_overlay_offset_y(190) {
+ pthread_mutex_init(&updateMutex, 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,
+ install_overlay_offset_x, 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 == ERROR) return;
+
+ 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) % 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) {
+ 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 && installing_frames > 0 && !show_text) {
+ installingFrame = (installingFrame + 1) % installing_frames;
+ redraw = 1;
+ }
+
+ // update the progress bar animation, if active
+ // skip this if we have a text overlay (too expensive to update)
+ if (progressBarType == INDETERMINATE && !show_text) {
+ 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_surface(filename, surface);
+ if (result < 0) {
+ LOGE("missing bitmap %s\n(Code %d)\n", filename, result);
+ }
+}
+
+void ScreenRecoveryUI::Init()
+{
+ gr_init();
+
+ 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(indeterminate_frames *
+ sizeof(gr_surface));
+ for (i = 0; i < indeterminate_frames; ++i) {
+ char filename[40];
+ // "indeterminate01.png", "indeterminate02.png", ...
+ sprintf(filename, "indeterminate%02d", i+1);
+ LoadBitmap(filename, progressBarIndeterminate+i);
+ }
+
+ if (installing_frames > 0) {
+ installationOverlay = (gr_surface*)malloc(installing_frames *
+ sizeof(gr_surface));
+ for (i = 0; i < 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];
+ install_overlay_offset_x += (gr_fb_width() - gr_get_width(bg)) / 2;
+ install_overlay_offset_y += (gr_fb_height() - gr_get_height(bg)) / 2;
+ }
+ } else {
+ installationOverlay = NULL;
+ }
+
+ pthread_create(&progress_t, NULL, progress_thread, NULL);
+
+ RecoveryUI::Init();
+}
+
+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();
+ }
+ progressScopeStart = 0;
+ progress = 0;
+ 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);
+}