xiaozhi-esp32/main/display/lvgl_display/lvgl_display.cc
laride 60ad1c5afc
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Refactor: Use esp_video component (#1245)
* refactor: migrate camera module to esp-video library

* refactor: migrate boards to esp-video API (1/2)

* refactor: migrate boards to esp-video API (2/2)

* fix: use ESP-IDF 5.5

* refactor: migrate the JPEG encoder to `esp_new_jpeg`

* feat: add YUV422 support

* feat: improve pixelformat and device selection process

* feat: use ESP32-P4 Hardware JPEG Encoder
2025-10-14 10:44:45 +08:00

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#include <esp_log.h>
#include <esp_err.h>
#include <string>
#include <cstdlib>
#include <cstring>
#include <font_awesome.h>
#include "lvgl_display.h"
#include "board.h"
#include "application.h"
#include "audio_codec.h"
#include "settings.h"
#include "assets/lang_config.h"
#include "jpg/image_to_jpeg.h"
#define TAG "Display"
LvglDisplay::LvglDisplay() {
// Notification timer
esp_timer_create_args_t notification_timer_args = {
.callback = [](void *arg) {
LvglDisplay *display = static_cast<LvglDisplay*>(arg);
DisplayLockGuard lock(display);
lv_obj_add_flag(display->notification_label_, LV_OBJ_FLAG_HIDDEN);
lv_obj_remove_flag(display->status_label_, LV_OBJ_FLAG_HIDDEN);
},
.arg = this,
.dispatch_method = ESP_TIMER_TASK,
.name = "notification_timer",
.skip_unhandled_events = false,
};
ESP_ERROR_CHECK(esp_timer_create(&notification_timer_args, &notification_timer_));
// Create a power management lock
auto ret = esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "display_update", &pm_lock_);
if (ret == ESP_ERR_NOT_SUPPORTED) {
ESP_LOGI(TAG, "Power management not supported");
} else {
ESP_ERROR_CHECK(ret);
}
}
LvglDisplay::~LvglDisplay() {
if (notification_timer_ != nullptr) {
esp_timer_stop(notification_timer_);
esp_timer_delete(notification_timer_);
}
if (network_label_ != nullptr) {
lv_obj_del(network_label_);
}
if (notification_label_ != nullptr) {
lv_obj_del(notification_label_);
}
if (status_label_ != nullptr) {
lv_obj_del(status_label_);
}
if (mute_label_ != nullptr) {
lv_obj_del(mute_label_);
}
if (battery_label_ != nullptr) {
lv_obj_del(battery_label_);
}
if( low_battery_popup_ != nullptr ) {
lv_obj_del(low_battery_popup_);
}
if (pm_lock_ != nullptr) {
esp_pm_lock_delete(pm_lock_);
}
}
void LvglDisplay::SetStatus(const char* status) {
DisplayLockGuard lock(this);
if (status_label_ == nullptr) {
return;
}
lv_label_set_text(status_label_, status);
lv_obj_remove_flag(status_label_, LV_OBJ_FLAG_HIDDEN);
lv_obj_add_flag(notification_label_, LV_OBJ_FLAG_HIDDEN);
last_status_update_time_ = std::chrono::system_clock::now();
}
void LvglDisplay::ShowNotification(const std::string &notification, int duration_ms) {
ShowNotification(notification.c_str(), duration_ms);
}
void LvglDisplay::ShowNotification(const char* notification, int duration_ms) {
DisplayLockGuard lock(this);
if (notification_label_ == nullptr) {
return;
}
lv_label_set_text(notification_label_, notification);
lv_obj_remove_flag(notification_label_, LV_OBJ_FLAG_HIDDEN);
lv_obj_add_flag(status_label_, LV_OBJ_FLAG_HIDDEN);
esp_timer_stop(notification_timer_);
ESP_ERROR_CHECK(esp_timer_start_once(notification_timer_, duration_ms * 1000));
}
void LvglDisplay::UpdateStatusBar(bool update_all) {
auto& app = Application::GetInstance();
auto& board = Board::GetInstance();
auto codec = board.GetAudioCodec();
// Update mute icon
{
DisplayLockGuard lock(this);
if (mute_label_ == nullptr) {
return;
}
// 如果静音状态改变,则更新图标
if (codec->output_volume() == 0 && !muted_) {
muted_ = true;
lv_label_set_text(mute_label_, FONT_AWESOME_VOLUME_XMARK);
} else if (codec->output_volume() > 0 && muted_) {
muted_ = false;
lv_label_set_text(mute_label_, "");
}
}
// Update time
if (app.GetDeviceState() == kDeviceStateIdle) {
if (last_status_update_time_ + std::chrono::seconds(10) < std::chrono::system_clock::now()) {
// Set status to clock "HH:MM"
time_t now = time(NULL);
struct tm* tm = localtime(&now);
// Check if the we have already set the time
if (tm->tm_year >= 2025 - 1900) {
char time_str[16];
strftime(time_str, sizeof(time_str), "%H:%M ", tm);
SetStatus(time_str);
} else {
ESP_LOGW(TAG, "System time is not set, tm_year: %d", tm->tm_year);
}
}
}
esp_pm_lock_acquire(pm_lock_);
// 更新电池图标
int battery_level;
bool charging, discharging;
const char* icon = nullptr;
if (board.GetBatteryLevel(battery_level, charging, discharging)) {
if (charging) {
icon = FONT_AWESOME_BATTERY_BOLT;
} else {
const char* levels[] = {
FONT_AWESOME_BATTERY_EMPTY, // 0-19%
FONT_AWESOME_BATTERY_QUARTER, // 20-39%
FONT_AWESOME_BATTERY_HALF, // 40-59%
FONT_AWESOME_BATTERY_THREE_QUARTERS, // 60-79%
FONT_AWESOME_BATTERY_FULL, // 80-99%
FONT_AWESOME_BATTERY_FULL, // 100%
};
icon = levels[battery_level / 20];
}
DisplayLockGuard lock(this);
if (battery_label_ != nullptr && battery_icon_ != icon) {
battery_icon_ = icon;
lv_label_set_text(battery_label_, battery_icon_);
}
if (low_battery_popup_ != nullptr) {
if (strcmp(icon, FONT_AWESOME_BATTERY_EMPTY) == 0 && discharging) {
if (lv_obj_has_flag(low_battery_popup_, LV_OBJ_FLAG_HIDDEN)) { // 如果低电量提示框隐藏,则显示
lv_obj_remove_flag(low_battery_popup_, LV_OBJ_FLAG_HIDDEN);
app.PlaySound(Lang::Sounds::OGG_LOW_BATTERY);
}
} else {
// Hide the low battery popup when the battery is not empty
if (!lv_obj_has_flag(low_battery_popup_, LV_OBJ_FLAG_HIDDEN)) { // 如果低电量提示框显示,则隐藏
lv_obj_add_flag(low_battery_popup_, LV_OBJ_FLAG_HIDDEN);
}
}
}
}
// 每 10 秒更新一次网络图标
static int seconds_counter = 0;
if (update_all || seconds_counter++ % 10 == 0) {
// 升级固件时,不读取 4G 网络状态,避免占用 UART 资源
auto device_state = Application::GetInstance().GetDeviceState();
static const std::vector<DeviceState> allowed_states = {
kDeviceStateIdle,
kDeviceStateStarting,
kDeviceStateWifiConfiguring,
kDeviceStateListening,
kDeviceStateActivating,
};
if (std::find(allowed_states.begin(), allowed_states.end(), device_state) != allowed_states.end()) {
icon = board.GetNetworkStateIcon();
if (network_label_ != nullptr && icon != nullptr && network_icon_ != icon) {
DisplayLockGuard lock(this);
network_icon_ = icon;
lv_label_set_text(network_label_, network_icon_);
}
}
}
esp_pm_lock_release(pm_lock_);
}
void LvglDisplay::SetPreviewImage(std::unique_ptr<LvglImage> image) {
}
void LvglDisplay::SetPowerSaveMode(bool on) {
if (on) {
SetChatMessage("system", "");
SetEmotion("sleepy");
} else {
SetChatMessage("system", "");
SetEmotion("neutral");
}
}
bool LvglDisplay::SnapshotToJpeg(std::string& jpeg_data, int quality) {
#if CONFIG_LV_USE_SNAPSHOT
DisplayLockGuard lock(this);
lv_obj_t* screen = lv_screen_active();
lv_draw_buf_t* draw_buffer = lv_snapshot_take(screen, LV_COLOR_FORMAT_RGB565);
if (draw_buffer == nullptr) {
ESP_LOGE(TAG, "Failed to take snapshot, draw_buffer is nullptr");
return false;
}
// swap bytes
uint16_t* data = (uint16_t*)draw_buffer->data;
size_t pixel_count = draw_buffer->data_size / 2;
for (size_t i = 0; i < pixel_count; i++) {
data[i] = __builtin_bswap16(data[i]);
}
// 清空输出字符串并使用回调版本,避免预分配大内存块
jpeg_data.clear();
// 🚀 使用回调版本的JPEG编码器进一步节省内存
bool ret = image_to_jpeg_cb((uint8_t*)draw_buffer->data, draw_buffer->data_size, draw_buffer->header.w, draw_buffer->header.h, V4L2_PIX_FMT_RGB565, quality,
[](void *arg, size_t index, const void *data, size_t len) -> size_t {
std::string* output = static_cast<std::string*>(arg);
if (data && len > 0) {
output->append(static_cast<const char*>(data), len);
}
return len;
}, &jpeg_data);
if (!ret) {
ESP_LOGE(TAG, "Failed to convert image to JPEG");
}
lv_draw_buf_destroy(draw_buffer);
return ret;
#else
ESP_LOGE(TAG, "LV_USE_SNAPSHOT is not enabled");
return false;
#endif
}