Import app manager, samples and test-tools
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wenyongh
165
samples/littlevgl/wasm-apps/src/main.c
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165
samples/littlevgl/wasm-apps/src/main.c
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/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file main
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include <stdlib.h>
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//#include <unistd.h>
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#include <inttypes.h>
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#include "lvgl/lvgl.h"
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#include "display_indev.h"
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#include "wasm_app.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void hal_init(void);
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//static int tick_thread(void * data);
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//static void memory_monitor(void * param);
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/**********************
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* STATIC VARIABLES
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**********************/
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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uint32_t count = 0;
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char count_str[11] = { 0 };
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lv_obj_t *hello_world_label;
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lv_obj_t *count_label;
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lv_obj_t * btn1;
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lv_obj_t * label_count1;
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int label_count1_value = 0;
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char label_count1_str[11] = { 0 };
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void timer1_update(user_timer_t timer1)
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{
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if ((count % 100) == 0) {
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sprintf(count_str, "%d", count / 100);
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lv_label_set_text(count_label, count_str);
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}
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lv_task_handler();
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++count;
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}
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static lv_res_t btn_rel_action(lv_obj_t * btn)
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{
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label_count1_value++;
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sprintf(label_count1_str, "%d", label_count1_value);
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lv_label_set_text(label_count1, label_count1_str);
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return LV_RES_OK;
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}
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void on_init()
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{
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/*Initialize LittlevGL*/
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lv_init();
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/*Initialize the HAL (display, input devices, tick) for LittlevGL*/
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hal_init();
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hello_world_label = lv_label_create(lv_scr_act(), NULL);
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lv_label_set_text(hello_world_label, "Hello world!");
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lv_obj_align(hello_world_label, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
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count_label = lv_label_create(lv_scr_act(), NULL);
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lv_obj_align(count_label, NULL, LV_ALIGN_IN_TOP_MID, 0, 0);
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btn1 = lv_btn_create(lv_scr_act(), NULL); /*Create a button on the currently loaded screen*/
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lv_btn_set_action(btn1, LV_BTN_ACTION_CLICK, btn_rel_action); /*Set function to be called when the button is released*/
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lv_obj_align(btn1, NULL, LV_ALIGN_CENTER, 0, 20); /*Align below the label*/
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/*Create a label on the button*/
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lv_obj_t * btn_label = lv_label_create(btn1, NULL);
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lv_label_set_text(btn_label, "Click ++");
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label_count1 = lv_label_create(lv_scr_act(), NULL);
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lv_label_set_text(label_count1, "0");
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lv_obj_align(label_count1, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
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/* set up a timer */
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user_timer_t timer;
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timer = api_timer_create(10, true, false, timer1_update);
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api_timer_restart(timer, 10);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Initialize the Hardware Abstraction Layer (HAL) for the Littlev graphics library
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*/
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void display_flush_wrapper(int32_t x1, int32_t y1, int32_t x2, int32_t y2,
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const lv_color_t * color_p)
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{
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display_flush(x1, y1, x2, y2, color_p);
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lv_flush_ready();
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}
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void display_vdb_write_wrapper(uint8_t *buf, lv_coord_t buf_w, lv_coord_t x,
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lv_coord_t y, lv_color_t color, lv_opa_t opa)
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{
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display_vdb_write(buf, buf_w, x, y, &color, opa);
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}
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extern void display_fill(int32_t x1, int32_t y1, int32_t x2, int32_t y2,
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lv_color_t color_p);
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extern void display_map(int32_t x1, int32_t y1, int32_t x2, int32_t y2,
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const lv_color_t * color_p);
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static void hal_init(void)
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{
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/* Add a display*/
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lv_disp_drv_t disp_drv;
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lv_disp_drv_init(&disp_drv); /*Basic initialization*/
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disp_drv.disp_flush = display_flush_wrapper; /*Used when `LV_VDB_SIZE != 0` in lv_conf.h (buffered drawing)*/
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disp_drv.disp_fill = display_fill; /*Used when `LV_VDB_SIZE == 0` in lv_conf.h (unbuffered drawing)*/
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disp_drv.disp_map = display_map; /*Used when `LV_VDB_SIZE == 0` in lv_conf.h (unbuffered drawing)*/
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#if LV_VDB_SIZE != 0
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disp_drv.vdb_wr = display_vdb_write_wrapper;
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#endif
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lv_disp_drv_register(&disp_drv);
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/* Add the mouse as input device
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* Use the 'mouse' driver which reads the PC's mouse*/
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// mouse_init();
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lv_indev_drv_t indev_drv;
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lv_indev_drv_init(&indev_drv); /*Basic initialization*/
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indev_drv.type = LV_INDEV_TYPE_POINTER;
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indev_drv.read = display_input_read; /*This function will be called periodically (by the library) to get the mouse position and state*/
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lv_indev_t * mouse_indev = lv_indev_drv_register(&indev_drv);
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}
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