Implement LVGL with SDL for simulator (#16)

* Implemented LVGL with SDL for simulator * cleanup * added SDL to build * build fix * mutex fixes * sim app cleanup and improvements * docs updated * fix for sdl? * fix for SDL cmake setup
2024-01-21 22:27:00 +01:00
parent 18a5c5aa45
commit d6baf40d0b
118 changed files with 15327 additions and 1181 deletions
@@ -0,0 +1,75 @@
+#include "lvgl_hal.h"
+
+#include "lvgl.h"
+#include "tactility_core.h"
+#include <sdl/sdl.h>
+
+#define TAG "lvgl_hal"
+
+#define BUFFER_SIZE (SDL_HOR_RES * SDL_VER_RES * 3)
+
+static lv_disp_t* hal_init() {
+    /* Use the 'monitor' driver which creates window on PC's monitor to simulate a display*/
+    sdl_init();
+
+    /*Create a display buffer*/
+    static lv_disp_draw_buf_t disp_buf1;
+    static lv_color_t buf1_1[BUFFER_SIZE];
+    lv_disp_draw_buf_init(&disp_buf1, buf1_1, NULL, BUFFER_SIZE);
+
+    /*Create a display*/
+    static lv_disp_drv_t disp_drv;
+    lv_disp_drv_init(&disp_drv); /*Basic initialization*/
+    disp_drv.draw_buf = &disp_buf1;
+    disp_drv.flush_cb = sdl_display_flush;
+    disp_drv.hor_res = SDL_HOR_RES;
+    disp_drv.ver_res = SDL_VER_RES;
+
+    lv_disp_t* disp = lv_disp_drv_register(&disp_drv);
+
+    lv_theme_t* th = lv_theme_default_init(
+        disp,
+        lv_palette_main(LV_PALETTE_BLUE),
+        lv_palette_main(LV_PALETTE_RED),
+        LV_THEME_DEFAULT_DARK,
+        LV_FONT_DEFAULT
+    );
+
+    lv_disp_set_theme(disp, th);
+
+    lv_group_t* g = lv_group_create();
+    lv_group_set_default(g);
+
+    /* Add the mouse as input device
+     * Use the 'mouse' driver which reads the PC's mouse*/
+    static lv_indev_drv_t indev_drv_1;
+    lv_indev_drv_init(&indev_drv_1); /*Basic initialization*/
+    indev_drv_1.type = LV_INDEV_TYPE_POINTER;
+
+    /*This function will be called periodically (by the library) to get the mouse position and state*/
+    indev_drv_1.read_cb = sdl_mouse_read;
+    lv_indev_t* mouse_indev = lv_indev_drv_register(&indev_drv_1);
+
+    static lv_indev_drv_t indev_drv_2;
+    lv_indev_drv_init(&indev_drv_2); /*Basic initialization*/
+    indev_drv_2.type = LV_INDEV_TYPE_KEYPAD;
+    indev_drv_2.read_cb = sdl_keyboard_read;
+    lv_indev_t* kb_indev = lv_indev_drv_register(&indev_drv_2);
+    lv_indev_set_group(kb_indev, g);
+
+    static lv_indev_drv_t indev_drv_3;
+    lv_indev_drv_init(&indev_drv_3); /*Basic initialization*/
+    indev_drv_3.type = LV_INDEV_TYPE_ENCODER;
+    indev_drv_3.read_cb = sdl_mousewheel_read;
+    lv_indev_t* enc_indev = lv_indev_drv_register(&indev_drv_3);
+    lv_indev_set_group(enc_indev, g);
+
+    return disp;
+}
+
+void lvgl_hal_init() {
+    TT_LOG_I(TAG, "init: started");
+    lv_init();
+    hal_init();
+    TT_LOG_I(TAG, "init: complete");
+}