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refactor: make display class more concise

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This commit is contained in:
Fritz Heiden 2025-05-26 18:57:35 +02:00
parent e56ce7daa1
commit 3a5fb66a6f
2 changed files with 104 additions and 43 deletions
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4
include/lv_conf.h
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@ -861,14 +861,14 @@
#define LV_USE_SNAPSHOT 0
/*1: Enable system monitor component*/
#define LV_USE_SYSMON 0
#define LV_USE_SYSMON 1
#if LV_USE_SYSMON
/*Get the idle percentage. E.g. uint32_t my_get_idle(void);*/
#define LV_SYSMON_GET_IDLE lv_timer_get_idle
/*1: Show CPU usage and FPS count
* Requires `LV_USE_SYSMON = 1`*/
#define LV_USE_PERF_MONITOR 0
#define LV_USE_PERF_MONITOR 1
#if LV_USE_PERF_MONITOR
#define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT

143
src/ui/display.cpp
View File

@ -7,8 +7,6 @@
#include <ui/views/main_view.hpp>
#include <input/user_input_manager.hpp>
#include <vector>
#ifndef SCREEN_WIDTH
#define SCREEN_WIDTH 320
#endif
@ -17,27 +15,34 @@
#define SCREEN_HEIGHT 240
#endif
#define DRAW_BUF_SIZE (SCREEN_WIDTH * SCREEN_HEIGHT / 10 * (LV_COLOR_DEPTH / 8))
#define DRAW_BUF_SIZE (SCREEN_WIDTH * SCREEN_HEIGHT / 6 * (LV_COLOR_DEPTH / 8))
namespace Display
{
using std::vector;
using UserInputManager::InputEvent;
const uint8_t MAIN_VIEW = 1;
const String USER_INPUT_HANDLE = "display";
uint32_t draw_buf[DRAW_BUF_SIZE / 4];
uint32_t getTime();
void handleLvglLogs(lv_log_level_t level, const char *buf);
void handleUpdateValues(lv_timer_t *timer);
void handleUpdateView(lv_timer_t *timer);
void handleReadUserInput(lv_indev_t *indev, lv_indev_data_t *data);
void setCurrentView(uint8_t view);
lv_display_t *setupDisplay();
lv_indev_t *setupInputDevice();
static void flushCallback(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map);
static void resolutionChangedEventCallback(lv_event_t *e);
lv_timer_t *update_values_timer;
typedef struct
{
TFT_eSPI *tft;
} lv_tft_espi_t;
const String USER_INPUT_HANDLE = "display";
uint32_t draw_buf[DRAW_BUF_SIZE / 4];
static lv_color_t *buf1 = (lv_color_t *)heap_caps_aligned_alloc(32, DRAW_BUF_SIZE, MALLOC_CAP_DMA);
static lv_color_t *buf2 = (lv_color_t *)heap_caps_aligned_alloc(32, DRAW_BUF_SIZE, MALLOC_CAP_DMA);
lv_timer_t *update_view_timer;
lv_indev_t *indev;
uint8_t current_view = 0;
lv_display_t *display;
void init()
{
@ -45,19 +50,14 @@ namespace Display
lv_log_register_print_cb(handleLvglLogs);
lv_tick_set_cb(getTime);
update_values_timer = lv_timer_create(handleUpdateValues, 5, NULL);
lv_timer_ready(update_values_timer);
display = setupDisplay();
indev = setupInputDevice();
lv_display_t *display;
display = lv_tft_espi_create(SCREEN_HEIGHT, SCREEN_WIDTH, draw_buf, sizeof(draw_buf));
lv_display_set_rotation(display, LV_DISPLAY_ROTATION_90);
lv_obj_t *parent = lv_screen_active();
MainView::render(parent, indev);
UserInputManager::registerForEvents(USER_INPUT_HANDLE);
indev = lv_indev_create();
lv_indev_set_type(indev, LV_INDEV_TYPE_KEYPAD);
lv_indev_set_read_cb(indev, handleReadUserInput);
setCurrentView(MAIN_VIEW);
update_view_timer = lv_timer_create(handleUpdateView, 5, NULL);
lv_timer_ready(update_view_timer);
}
void update()
@ -65,6 +65,75 @@ namespace Display
lv_timer_handler();
}
lv_display_t *setupDisplay()
{
void *buf = draw_buf;
uint32_t buf_size_bytes = sizeof(draw_buf);
lv_tft_espi_t *dsc = (lv_tft_espi_t *)lv_malloc_zeroed(sizeof(lv_tft_espi_t));
LV_ASSERT_MALLOC(dsc);
if (dsc == NULL)
return NULL;
lv_display_t *disp = lv_display_create(SCREEN_HEIGHT, SCREEN_WIDTH);
if (disp == NULL)
{
lv_free(dsc);
return NULL;
}
dsc->tft = new TFT_eSPI(SCREEN_HEIGHT, SCREEN_WIDTH);
dsc->tft->begin(); /* TFT init */
dsc->tft->setRotation(0);
lv_display_set_driver_data(disp, (void *)dsc);
lv_display_set_flush_cb(disp, flushCallback);
lv_display_add_event_cb(disp, resolutionChangedEventCallback, LV_EVENT_RESOLUTION_CHANGED, NULL);
lv_display_set_buffers(disp, buf1, buf2, SCREEN_HEIGHT * SCREEN_WIDTH / 6, LV_DISPLAY_RENDER_MODE_PARTIAL);
lv_display_set_rotation(disp, LV_DISPLAY_ROTATION_90);
return disp;
}
static void flushCallback(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map)
{
lv_tft_espi_t *dsc = (lv_tft_espi_t *)lv_display_get_driver_data(disp);
uint32_t w = (area->x2 - area->x1 + 1);
uint32_t h = (area->y2 - area->y1 + 1);
dsc->tft->startWrite();
dsc->tft->setAddrWindow(area->x1, area->y1, w, h);
dsc->tft->pushColors((uint16_t *)px_map, w * h, true);
dsc->tft->endWrite();
lv_display_flush_ready(disp);
}
static void resolutionChangedEventCallback(lv_event_t *e)
{
lv_display_t *disp = (lv_display_t *)lv_event_get_target(e);
lv_tft_espi_t *dsc = (lv_tft_espi_t *)lv_display_get_driver_data(disp);
int32_t hor_res = lv_display_get_horizontal_resolution(disp);
int32_t ver_res = lv_display_get_vertical_resolution(disp);
lv_display_rotation_t rot = lv_display_get_rotation(disp);
/* handle rotation */
switch (rot)
{
case LV_DISPLAY_ROTATION_0:
dsc->tft->setRotation(0); /* Portrait orientation */
break;
case LV_DISPLAY_ROTATION_90:
dsc->tft->setRotation(1); /* Landscape orientation */
break;
case LV_DISPLAY_ROTATION_180:
dsc->tft->setRotation(2); /* Portrait orientation, flipped */
break;
case LV_DISPLAY_ROTATION_270:
dsc->tft->setRotation(3); /* Landscape orientation, flipped */
break;
}
}
void handleLvglLogs(lv_log_level_t level, const char *buf)
{
Serial.printf("LVGL: %s\r\n", buf);
@ -75,27 +144,19 @@ namespace Display
return esp_timer_get_time() / 1000;
}
void setCurrentView(uint8_t view)
void handleUpdateView(lv_timer_t *timer)
{
current_view = view;
lv_obj_t *parent = lv_screen_active();
lv_obj_clean(parent);
switch (view)
{
case MAIN_VIEW:
MainView::render(parent, indev);
break;
}
MainView::update();
}
void handleUpdateValues(lv_timer_t *timer)
lv_indev_t *setupInputDevice()
{
switch (current_view)
{
case MAIN_VIEW:
MainView::update();
break;
}
UserInputManager::registerForEvents(USER_INPUT_HANDLE);
lv_indev_t *indev = lv_indev_create();
lv_indev_set_type(indev, LV_INDEV_TYPE_KEYPAD);
lv_indev_set_read_cb(indev, handleReadUserInput);
return indev;
}
void handleReadUserInput(lv_indev_t *indev, lv_indev_data_t *data)