Screen Orientation Issue on LILYGO T Display S3 LONG

[BL4cK-Ra1N]

Hello, I'm not experienced in programming, but I'm learning. I tried this sketch https://github.com/moononournation/Arduino_GFX/blob/master/examples/LVGL/LvglBenchmark/LvglBenchmark.ino on my LILYGO T Display S3 LONG, but I can't get it to display in landscape mode. I tried using rotation, but it doesn't display correctly. Your video https://www.youtube.com/watch?v=OuxLFwxvcVc shows the benchmark displayed in landscape mode, can you explain how to do it? Thank you in advance.

[moononournation]

It have a Canvas class in the middle. And the canvas class have the software rotation features.

[BL4cK-Ra1N]

Thank you for responding. Besides configuring the rotation on "Arduino_GFX *gfx = new Arduino_Canvas", the issue was also caused by "LV_COLOR_16_SWAP 1" in the file lv_conf.h, which needs to be set to "0". Therefore, I ran the sketch as follows:

// In lv_conf.h configure LV_COLOR_16_SWAP to 0 // #define LV_COLOR_16_SWAP 0 //

#include "lv_demo_benchmark.h"
#include <Arduino_GFX_Library.h>

#define GFX_BL 1
Arduino_DataBus bus = new Arduino_ESP32QSPI(
12 / cs /, 17 / sck /, 13 / d0 /, 18 / d1 /, 21 / d2 /, 14 / d3 */);
Arduino_GFX g = new Arduino_AXS15231B(bus, 47 / RST /, 0 / rotation /, false / IPS /, 180 / width /, 640 / height */);
Arduino_GFX gfx = new Arduino_Canvas(180 / width /, 640 / height /, g, 0 / output_x /, 0 / output_y /, 1 / rotation */);
#define CANVAS

#include "touch.h"

/* Change to your screen resolution */
static uint32_t screenWidth;
static uint32_t screenHeight;
static uint32_t bufSize;
static lv_disp_draw_buf_t draw_buf;
static lv_color_t *disp_draw_buf;
static lv_disp_drv_t disp_drv;

/* Display flushing */
void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
{
#ifndef DIRECT_MODE
uint32_t w = (area->x2 - area->x1 + 1);
uint32_t h = (area->y2 - area->y1 + 1);

#if (LV_COLOR_16_SWAP != 0)
gfx->draw16bitBeRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
#else
gfx->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
#endif
#endif // #ifndef DIRECT_MODE

lv_disp_flush_ready(disp);
}

void my_touchpad_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
{
if (touch_has_signal())
{
if (touch_touched())
{
data->state = LV_INDEV_STATE_PR;

  /*Set the coordinates*/
  data->point.x = touch_last_x;
  data->point.y = touch_last_y;
}
else if (touch_released())
{
  data->state = LV_INDEV_STATE_REL;
}

}
else
{
data->state = LV_INDEV_STATE_REL;
}
}

void setup()
{
Serial.begin(115200);
// Serial.setDebugOutput(true);
// while(!Serial);
Serial.println("Arduino_GFX LVGL Benchmark example");

#ifdef GFX_EXTRA_PRE_INIT
GFX_EXTRA_PRE_INIT();
#endif

// Init Display
if (!gfx->begin())
{
Serial.println("gfx->begin() failed!");
}
gfx->fillScreen(BLACK);

#ifdef GFX_BL
pinMode(GFX_BL, OUTPUT);
digitalWrite(GFX_BL, HIGH);
#endif

// Init touch device
touch_init(gfx->width(), gfx->height(), gfx->getRotation());

lv_init();

screenWidth = gfx->width();
screenHeight = gfx->height();

#ifdef DIRECT_MODE
bufSize = screenWidth * screenHeight;
#else
bufSize = screenWidth * 40;
#endif

#ifdef ESP32
disp_draw_buf = (lv_color_t *)heap_caps_malloc(sizeof(lv_color_t) * bufSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
if (!disp_draw_buf)
{
// remove MALLOC_CAP_INTERNAL flag try again
disp_draw_buf = (lv_color_t *)heap_caps_malloc(sizeof(lv_color_t) * bufSize, MALLOC_CAP_8BIT);
}
#else
disp_draw_buf = (lv_color_t *)malloc(sizeof(lv_color_t) * bufSize);
#endif
if (!disp_draw_buf)
{
Serial.println("LVGL disp_draw_buf allocate failed!");
}
else
{
lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, bufSize);

/* Initialize the display */
lv_disp_drv_init(&disp_drv);
/* Change the following line to your display resolution */
disp_drv.hor_res = screenWidth;
disp_drv.ver_res = screenHeight;
disp_drv.flush_cb = my_disp_flush;
disp_drv.draw_buf = &draw_buf;

#ifdef DIRECT_MODE
disp_drv.direct_mode = true;
#endif
lv_disp_drv_register(&disp_drv);

/* Initialize the (dummy) input device driver */
static lv_indev_drv_t indev_drv;
lv_indev_drv_init(&indev_drv);
indev_drv.type = LV_INDEV_TYPE_POINTER;
indev_drv.read_cb = my_touchpad_read;
lv_indev_drv_register(&indev_drv);

lv_demo_benchmark();

Serial.println("Setup done");

}
}

void loop()
{
lv_timer_handler(); /* let the GUI do its work */

#ifdef DIRECT_MODE
#if (LV_COLOR_16_SWAP != 0)
gfx->draw16bitBeRGBBitmap(0, 0, (uint16_t *)disp_draw_buf, screenWidth, screenHeight);
#else
gfx->draw16bitRGBBitmap(0, 0, (uint16_t *)disp_draw_buf, screenWidth, screenHeight);
#endif
#endif // #ifdef DIRECT_MODE

#ifdef CANVAS
gfx->flush();
#endif

delay(5);
}