Software rotation with esp_lvgl_port on ESP32-P4 with ILI9881C display

[dmartauz]

Board

ESP32-P4-Function-EV-Board

Hardware Description

ILI9881C touchscreen display (8" 800 x 1280 pixels)

IDE Name

esp-idf/master

Operating System

Windows 10

Description

The display natively works in portrait orientation and it is displaying simple tabview. In this orientation it works well.

Because I want to use it in landscape orientation and it seems that ILI9881C does not support hardware rotation I am attempting to use .sw_rotate = true and after uncommenting last line of the code it seems that first rotated frame is drawn correctly but following frames have some offset (shifted LVGL FPS tracker).

After clicking on the tabview also tabview buttons get shifted.

Is master branch of esp_lvgl_port already using PPA in case of ESP32-P4?

Sketch

    const lvgl_port_display_cfg_t disp_cfg = {
        .io_handle = mipi_dbi_io,
        .panel_handle = mipi_dpi_panel,
        .buffer_size = EXAMPLE_MIPI_DSI_LCD_V_RES * EXAMPLE_MIPI_DSI_LCD_H_RES, //EXAMPLE_LVGL_DRAW_BUF_LINES
        .double_buffer = true,
        .hres = EXAMPLE_MIPI_DSI_LCD_H_RES,
        .vres = EXAMPLE_MIPI_DSI_LCD_V_RES,
        .monochrome = false,
        .color_format = LV_COLOR_FORMAT_RGB565,
        .rotation = {
            .swap_xy = false,
            .mirror_x = false,
            .mirror_y = false,
        },
        .flags = {
            .buff_dma = false,
            .buff_spiram = true,
            .sw_rotate = true,
            .swap_bytes = false,
            .full_refresh = false,
            .direct_mode = false,
        }
    };

    const lvgl_port_display_dsi_cfg_t disp_dsi_cfg;

    lvgl_display = lvgl_port_add_disp_dsi(&disp_cfg, &disp_dsi_cfg);
    //lv_display_set_rotation(lvgl_display, LV_DISPLAY_ROTATION_270);

Other Steps to Reproduce

No response

I have checked existing issues, README.md and ESP32 Forum

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[espzav]

Hi @dmartauz thank you for reporting this issue. I will check it soon and fix it. The master branch is not using PPA yet, because after performance measurement, the SW rotation was faster than PPA because we are rotationg only small pieces of the whole screen. We are still working on improving performance and looking for the best solution. The PPA rotation is used in this PR: #352

[dmartauz]

@espzav any update on the fix? In the meantime I am porting my application from S3 with 800x480 parallel display.