Aksal/nuttx-apps
1
0
Fork 1
mirror of https://github.com/apache/nuttx-apps.git synced 2026-10-04 04:38:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

lvgl: use malloc/free for memory handling and "tickless" tick interface

Browse source 
This makes LVGL use malloc/free to handle its memory (instead of
their own memory handling) and supports a tick interface by which
LVGL can ask NuttX the elapsed time, instead of having to periodically
"tick" LVGL internal time in a thread.
This commit is contained in:
Matias N 2020-10-29 19:46:52 -03:00 • committed by Brennan Ashton
parent 305bd0e448
commit 5bcaeff541
5 changed files with 141 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

53
examples/lvgldemo/lvgldemo.c
View file

@ -89,54 +89,6 @@ void lv_demo_widgets(void);
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: tick_func
*
* Description:
* Calls lv_tick_inc(...) every 5ms.
*
* Input Parameters:
* data
*
* Returned Value:
* NULL
*
****************************************************************************/
static FAR void *tick_func(void *data)
{
static long last_ms;
long ms;
struct timespec spec;
while (1)
{
long diff;
/* Calculate how much time elapsed */
clock_gettime(CLOCK_REALTIME, &spec);
ms = (long)spec.tv_nsec / 1000000;
diff = ms - last_ms;
/* Handle overflow */
if (diff < 0)
{
diff = 1000 + diff;
}
lv_tick_inc(diff);
usleep(5000);
last_ms = ms;
}
/* Never will reach here */
return NULL;
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -157,7 +109,6 @@ static FAR void *tick_func(void *data)
int main(int argc, FAR char *argv[])
{
lv_disp_drv_t disp_drv;
pthread_t tick_thread;
lv_disp_buf_t disp_buf;
static lv_color_t buf[DISPLAY_BUFFER_SIZE];
@ -214,10 +165,6 @@ int main(int argc, FAR char *argv[])
disp_drv.buffer = &disp_buf;
lv_disp_drv_register(&disp_drv);
/* Tick interface initialization */
pthread_create(&tick_thread, NULL, tick_func, NULL);
/* Touchpad Initialization */
tp_init();