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display_gif_embedded: 15.4 -> 20.6 fps

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- FPS/refresh/decode counter via LVGL monitor_cb (printed once per second)
- LVGL logging off, per-loop memory prints removed, loop delay 5 -> 1 ms
- double draw buffer (render while previous chunk is flushed)
- compile with -O2 instead of -Os

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
patriandClaude Opus 5.5 committed 2026-10-23 00:51:23 +02:00
1 parent 4e63fb65c6
commit 70114f73aa
5 files changed
+70 -39
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10-OBD-Display-2024/display_gif_embedded/include/lv_conf.h
+1 -1
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@@ -201,7 +201,7 @@
*-----------*/
/*Enable the log module*/
#define LV_USE_LOG 1
#define LV_USE_LOG 0
#if LV_USE_LOG
/*How important log should be added:
10-OBD-Display-2024/display_gif_embedded/include/scr_st77916.h
+3 -1
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@@ -10,6 +10,7 @@
#define SCREEN_RES_VER 360
static lv_color_t *disp_draw_buf;
static lv_color_t *disp_draw_buf2; // second buffer: LVGL renders into one while the other is sent to the LCD
static lv_disp_draw_buf_t draw_buf;
static lv_disp_drv_t disp_drv;
static lv_indev_t *indev_touchpad;
@@ -418,8 +419,9 @@ void scr_lvgl_init()
size_t lv_cache_rows = 72;
disp_draw_buf = (lv_color_t *)heap_caps_malloc(lv_cache_rows * SCREEN_RES_HOR * 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
disp_draw_buf2 = (lv_color_t *)heap_caps_malloc(lv_cache_rows * SCREEN_RES_HOR * 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
lv_init();
lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, SCREEN_RES_HOR * lv_cache_rows);
lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, disp_draw_buf2, SCREEN_RES_HOR * lv_cache_rows);
lv_disp_drv_init(&disp_drv);
disp_drv.hor_res = SCREEN_RES_HOR;
10-OBD-Display-2024/display_gif_embedded/platformio.ini
+32 -29
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@@ -1,29 +1,32 @@
; JC3636W518 — ESP32-S3R8, 16 MB QIO flash, 8 MB OPI PSRAM, 360x360 ST77916 QSPI + CST816S
; Settings mirror the vendor Arduino IDE setup (2-Program Example/Demo_Arduino/docs/Arduino set up.png)
[env:jc3636w518]
; pioarduino = Arduino core 3.0.5 (ESP32_Display_Panel 0.1.4 needs core 3.x)
platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip
board = esp32-s3-devkitc-1
framework = arduino
board_build.arduino.memory_type = qio_opi
board_build.flash_mode = qio
board_upload.flash_size = 16MB
; GIF compiled into firmware -> 3.4 MB, too big for huge_app (3 MB); 6.25 MB app slots
board_build.partitions = default_16MB.csv
build_flags =
-DBOARD_HAS_PSRAM
-DARDUINO_USB_CDC_ON_BOOT=1
; LVGL (also when compiled as a library) picks up include/lv_conf.h of this project
-DLV_CONF_INCLUDE_SIMPLE
-Iinclude
; vendor-bundled libraries: ESP32_Display_Panel 0.1.4, ESP32_IO_Expander 0.0.2, lvgl 8.3.11
lib_extra_dirs = ../../2-Program Example/Demo_Arduino/library
upload_port = COM21
monitor_port = COM21
monitor_speed = 115200
monitor_filters = esp32_exception_decoder
; JC3636W518 — ESP32-S3R8, 16 MB QIO flash, 8 MB OPI PSRAM, 360x360 ST77916 QSPI + CST816S
; Settings mirror the vendor Arduino IDE setup (2-Program Example/Demo_Arduino/docs/Arduino set up.png)
[env:jc3636w518]
; pioarduino = Arduino core 3.0.5 (ESP32_Display_Panel 0.1.4 needs core 3.x)
platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip
board = esp32-s3-devkitc-1
framework = arduino
board_build.arduino.memory_type = qio_opi
board_build.flash_mode = qio
board_upload.flash_size = 16MB
; GIF compiled into firmware -> 3.4 MB, too big for huge_app (3 MB); 6.25 MB app slots
board_build.partitions = default_16MB.csv
; optimise for speed instead of size (faster GIF decoding)
build_unflags = -Os
build_flags =
-O2
-DBOARD_HAS_PSRAM
-DARDUINO_USB_CDC_ON_BOOT=1
; LVGL (also when compiled as a library) picks up include/lv_conf.h of this project
-DLV_CONF_INCLUDE_SIMPLE
-Iinclude
; vendor-bundled libraries: ESP32_Display_Panel 0.1.4, ESP32_IO_Expander 0.0.2, lvgl 8.3.11
lib_extra_dirs = ../../2-Program Example/Demo_Arduino/library
upload_port = COM21
monitor_port = COM21
monitor_speed = 115200
monitor_filters = esp32_exception_decoder
10-OBD-Display-2024/display_gif_embedded/src/main.cpp
+29 -8
View File
@@ -12,6 +12,30 @@ const char* password = "123456789";
String httpGETRequest(const char* serverName);
// FPS measurement: LVGL calls this after every screen refresh (= one GIF frame here)
static volatile uint32_t refr_count = 0;
static volatile uint32_t refr_time_ms = 0;
static uint32_t busy_us = 0; // time spent inside lv_timer_handler()
static void refr_monitor_cb(lv_disp_drv_t* drv, uint32_t time, uint32_t px) {
refr_count++;
refr_time_ms += time;
}
void print_fps() {
static uint32_t last_ms = 0;
uint32_t now = millis();
if (now - last_ms < 1000) return;
// decode = busy time not spent refreshing the screen (mostly GIF decoding)
Serial.printf("FPS: %.1f avg refresh: %lu ms avg decode: %lu ms\n", refr_count * 1000.0f / (now - last_ms),
refr_count ? refr_time_ms / refr_count : 0,
refr_count ? (busy_us / 1000 - refr_time_ms) / refr_count : 0);
refr_count = 0;
refr_time_ms = 0;
busy_us = 0;
last_ms = now;
}
void my_print(const char* buf) {
Serial.println(buf); // Print logs to the serial monitor
@@ -106,6 +130,7 @@ void setup() {
delay(200);
Serial.begin(115200);
scr_lvgl_init();
lv_disp_get_default()->driver->monitor_cb = refr_monitor_cb;
lv_init();
@@ -143,15 +168,11 @@ void setup() {
}
void loop() {
uint32_t t0 = micros();
lv_timer_handler();
vTaskDelay(5);
lv_mem_monitor_t mem_mon;
lv_mem_monitor(&mem_mon);
printf("Free memory: %d bytes\n", mem_mon.free_size);
Serial.print("Available Heap: ");
Serial.println(esp_get_free_heap_size());
busy_us += micros() - t0;
vTaskDelay(1);
print_fps();
// if (WiFi.status() == WL_CONNECTED) {