/** The target buffer size for simple layer chunks. */ #define LV_DRAW_LAYER_SIMPLE_BUF_SIZE (24 * 1024) /**< [bytes]*/ /* Limit the max allocated memory for simple and transformed layers. * It should be at leas
/*Linux frame buffer device init*/ fbdev_init(); /*A small buffer for LittlevGL to draw the screen's content*/ staticlv_color_t buf[DISP_BUF_SIZE]; /*Initialize a descriptor for the buffer*/ staticlv_disp_draw_buf_t disp_buf; lv_disp_draw_buf_init(&disp_buf, buf,NULL, DISP_BU...
函数中主要调用lv_refr_join_area(),用于计算需要更新的区域,并剔除多控件重复覆盖的无意义刷新部分,接着调用lv_refr_areas()刷新之前计算的需要刷新的区域,该绘制函数调用路径为lv_refr_area->lv_refr_area_part-> lv_refr_vdb_flush ->(drv->flush_cb) ,flush_cb为最初注册的显示驱动的刷新回调函数。
# define LV_MEM_SIZE (2 * 1024U * 1024U) /*[bytes]*/ 使用linux 系统内存分配:使能宏#define LV_MEM_CUSTOM 1即可 编写主程序和Makefile main.c参考自lv_port_linux_frame_buffer/blob/release/v8.2/main.c main.c 中修改lv_demo.h路径: #include "lv_demos/lv_demo.h" Makefile参考自lv_port...
#defineLV_MEM_SIZE (2 * 1024U * 1024U)/*[bytes]*/ 使用linux 系统内存分配:使能宏#define LV_MEM_CUSTOM 1即可 编写主程序和Makefile main.c参考自lv_port_linux_frame_buffer/blob/release/v8.2/main.c main.c 中修改lv_demo.h路径:
https://github.com/lvgl/lv_demos.git LVGL的例程 lv_port_linux_frame_buffer https://github.com/lvgl/lv_port_linux_frame_buffer.git 适配有frame buffer的linux系统的接口 4. 移植步骤 4.1 移植文件 首先在根目录创建一个文件夹用以存放官方的源码: 代码语言:javascript 代码运行次数:0 运行 AI代码...
仓库地址:https:///lvgl/lv_port_linux_frame_buffer git 命令 git clone --recursive https:///lvgl/lv_port_linux_frame_buffer.git # 如果拉取不下来,可以使用下面的加速地址,我也不知道是否会失效 https://github.moeyy.xyz/https:///lvgl/lv_port_linux_frame_buffer.git ...
lv_label_set_text(label,"你好中国"); status = 0 ; break; default: break; } } } int main(void) { lv_init(); fbdev_init(); static lv_color_t buf[DISP_BUF_SIZE]; /*Initialize a descriptorforthe buffer*/ static lv_disp_draw_bu...
#include "lvgl/lvgl.h"#include "lvgl/demos/lv_demos.h"#include "lv_drivers/display/fbdev.h"#include "lv_drivers/indev/evdev.h"#include <unistd.h>#include #include <sys/time.h>#define DISP_BUF_SIZE (800 * 480)int main(void){lv_init();/*Linux frame buffer device init*/fbdev_init...
LV_LINUX_FBDEV_BUFFER_COUNT 2 LV_LINUX_FBDEV_BUFFER_SIZE 1080 LV_USE_LINUX_DRM 0 LV_USE_SDL 0 LV_USE_WAYLAND 0 LV_USE_EVDEV 1 LV_USE_DEMO_WIDGETS 1 LV_USE_DEMO_KEYPAD_AND_ENCODER 1 @@ -62,4 +86,5 @@ LV_USE_DEMO_FLEX_LAYOUT 1 LV_USE_DEMO_MULTILANG 1 LV_USE_DEMO_TRANSFOR...