成功移植lvgl

2026-02-19 02:53:47 +08:00
parent ee80965d58
commit 452ec672b1
11 changed files with 1987 additions and 79 deletions
@@ -0,0 +1,163 @@
+/**
+ * @file lv_port_disp_template.c
+ *
+ */
+
+/*Copy this file as "lv_port_disp.c" and set this value to "1" to enable content*/
+#if 1
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_port_disp.h"
+#include <stdbool.h>
+#include "esp_log.h"
+#include "lcd.h"
+
+#define MY_DISP_HOR_RES 320
+#define MY_DISP_VER_RES 240
+
+static const char *TAG = "LVGL_disp";
+
+/*********************
+ *      DEFINES
+ *********************/
+#ifndef MY_DISP_HOR_RES
+#warning Please define or replace the macro MY_DISP_HOR_RES with the actual screen width, default value 320 is used for now.
+#define MY_DISP_HOR_RES 320
+#endif
+
+#ifndef MY_DISP_VER_RES
+#warning Please define or replace the macro MY_DISP_VER_RES with the actual screen height, default value 240 is used for now.
+#define MY_DISP_VER_RES 240
+#endif
+
+#define BYTE_PER_PIXEL (LV_COLOR_FORMAT_GET_SIZE(LV_COLOR_FORMAT_RGB565_SWAPPED)) /*will be 2 for RGB565 */
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+static void disp_init(void);
+
+static void disp_flush(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map);
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+void lv_port_disp_init(void)
+{
+    /*-------------------------
+     * Initialize your display
+     * -----------------------*/
+    disp_init();
+
+    /*------------------------------------
+     * Create a display and set a flush_cb
+     * -----------------------------------*/
+    lv_display_t *disp = lv_display_create(MY_DISP_HOR_RES, MY_DISP_VER_RES);
+    lv_display_set_color_format(disp, LV_COLOR_FORMAT_RGB565_SWAPPED);
+    lv_display_set_flush_cb(disp, disp_flush);
+
+    /* Example 1
+     * One buffer for partial rendering*/
+    // LV_ATTRIBUTE_MEM_ALIGN
+    // static uint8_t buf_1_1[MY_DISP_HOR_RES * 10 * BYTE_PER_PIXEL];            /*A buffer for 10 rows*/
+    // lv_display_set_buffers(disp, buf_1_1, NULL, sizeof(buf_1_1), LV_DISPLAY_RENDER_MODE_PARTIAL);
+
+    /* Example 2
+     * Two buffers for partial rendering
+     * In flush_cb DMA or similar hardware should be used to update the display in the background.*/
+    LV_ATTRIBUTE_MEM_ALIGN
+    static uint8_t buf_2_1[MY_DISP_HOR_RES * 10 * BYTE_PER_PIXEL];
+
+    LV_ATTRIBUTE_MEM_ALIGN
+    static uint8_t buf_2_2[MY_DISP_HOR_RES * 10 * BYTE_PER_PIXEL];
+    lv_display_set_buffers(disp, buf_2_1, buf_2_2, sizeof(buf_2_1), LV_DISPLAY_RENDER_MODE_PARTIAL);
+
+    /* Example 3
+     * Two buffers screen sized buffer for double buffering.
+     * Both LV_DISPLAY_RENDER_MODE_DIRECT and LV_DISPLAY_RENDER_MODE_FULL works, see their comments*/
+    // LV_ATTRIBUTE_MEM_ALIGN
+    // static uint8_t buf_3_1[MY_DISP_HOR_RES * MY_DISP_VER_RES * BYTE_PER_PIXEL];
+
+    // LV_ATTRIBUTE_MEM_ALIGN
+    // static uint8_t buf_3_2[MY_DISP_HOR_RES * MY_DISP_VER_RES * BYTE_PER_PIXEL];
+    // lv_display_set_buffers(disp, buf_3_1, buf_3_2, sizeof(buf_3_1), LV_DISPLAY_RENDER_MODE_DIRECT);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+/*Initialize your display and the required peripherals.*/
+static void disp_init(void)
+{
+    /*You code here*/
+}
+
+volatile bool disp_flush_enabled = true;
+
+/* Enable updating the screen (the flushing process) when disp_flush() is called by LVGL
+ */
+void disp_enable_update(void)
+{
+    disp_flush_enabled = true;
+}
+
+/* Disable updating the screen (the flushing process) when disp_flush() is called by LVGL
+ */
+void disp_disable_update(void)
+{
+    disp_flush_enabled = false;
+}
+
+/*Flush the content of the internal buffer the specific area on the display.
+ *`px_map` contains the rendered image as raw pixel map and it should be copied to `area` on the display.
+ *You can use DMA or any hardware acceleration to do this operation in the background but
+ *'lv_display_flush_ready()' has to be called when it's finished.*/
+static void disp_flush(lv_display_t *disp_drv, const lv_area_t *area, uint8_t *px_map)
+{
+    if (disp_flush_enabled)
+    {
+        /*The most simple case (but also the slowest) to put all pixels to the screen one-by-one*/
+
+        // 获取显示驱动的颜色格式
+        lv_color_format_t color_format = lv_display_get_color_format(disp_drv);
+        // 获取像素字节数
+        uint8_t px_size = lv_color_format_get_size(color_format);
+
+        gpio_set_level(LCD_CS, 0);
+        lcd_set_window(area->x1, area->y1, area->x2+1, area->y2+1);
+        esp_err_t err = lcd_spi_send_data_any(px_map, (area->x2+1 - area->x1) * (area->y2+1 - area->y1) * px_size);
+        gpio_set_level(LCD_CS, 1);
+        
+        if (err != ESP_OK)
+        {
+            ESP_LOGE(TAG, "失败:%x", err);
+        }
+        //ESP_LOGI(TAG, "flush: x1:%lu y1:%lu x2:%lu y2:%lu len:%d", area->x1, area->y1, area->x2, area->y2, px_size);
+    }
+
+    /*IMPORTANT!!!
+     *Inform the graphics library that you are ready with the flushing*/
+    lv_display_flush_ready(disp_drv);
+}
+
+#else /*Enable this file at the top*/
+
+/*This dummy typedef exists purely to silence -Wpedantic.*/
+typedef int keep_pedantic_happy;
+#endif