feat(esp_lvgl_port): Add rounder_cb option for displays (BSP-705)

components/esp_lvgl_port/CHANGELOG.md

@@ -1,8 +1,10 @@
 # Changelog
 
-## [Unreleased]
+## 2.7.0
+
 ### Features
 - Added option to place LVGL task stack to external RAM
+- Added option to include a rounder callback for LVGL 9
 
 ## 2.6.0
 

components/esp_lvgl_port/README.md

@@ -64,6 +64,7 @@ Add an LCD screen to the LVGL. It can be called multiple times for adding multip
         .monochrome = false,
         .mipi_dsi = false,
         .color_format = LV_COLOR_FORMAT_RGB565,
+        .rounder_cb = my_rounder_cb, // for LVGL9
         .rotation = {
             .swap_xy = false,
             .mirror_x = false,

components/esp_lvgl_port/idf_component.yml

@@ -1,4 +1,4 @@
-version: "2.6.0"
+version: "2.7.0"
 description: ESP LVGL port
 url: https://github.com/espressif/esp-bsp/tree/master/components/esp_lvgl_port
 dependencies:

components/esp_lvgl_port/include/esp_lvgl_port_disp.h

@@ -33,6 +33,13 @@ typedef struct {
     bool mirror_y; /*!< LCD Screen mirrored Y (in esp_lcd driver) */
 } lvgl_port_rotation_cfg_t;
 
+#if LVGL_VERSION_MAJOR >= 9
+/**
+ * @brief Rounder callback
+ */
+typedef void (*lvgl_port_rounder_cb_t)(lv_area_t *area);
+#endif
+
 /**
  * @brief Configuration display structure
  */
@@ -53,6 +60,7 @@ typedef struct {
     lvgl_port_rotation_cfg_t rotation;      /*!< Default values of the screen rotation (Only HW state. Not supported for default SW rotation!) */
 #if LVGL_VERSION_MAJOR >= 9
     lv_color_format_t        color_format;  /*!< The color format of the display */
+    lvgl_port_rounder_cb_t   rounder_cb;      /*!< Rounder callback for display area */
 #endif
     struct {
         unsigned int buff_dma: 1;    /*!< Allocated LVGL buffer will be DMA capable */

components/esp_lvgl_port/src/lvgl9/esp_lvgl_port_disp.c

@@ -749,6 +749,12 @@ static void lvgl_port_disp_size_update_callback(lv_event_t *e)
 
 static void lvgl_port_display_invalidate_callback(lv_event_t *e)
 {
+    lvgl_port_display_ctx_t *disp_ctx = (lvgl_port_display_ctx_t *)lv_event_get_user_data(e);
+    lv_area_t *area = (lv_area_t *)lv_event_get_param(e);
+    if (area != NULL && disp_ctx != NULL && disp_ctx->rounder_cb != NULL) {
+        disp_ctx->rounder_cb(area);
+    }
+
     /* Wake LVGL task, if needed */
     lvgl_port_task_wake(LVGL_PORT_EVENT_DISPLAY, NULL);
 }