1*4882a593SmuzhiyunFrom e0987e1c60cdf3361763b7e94f76f7175fe0584d Mon Sep 17 00:00:00 2001 2*4882a593SmuzhiyunFrom: Jeffy Chen <jeffy.chen@rock-chips.com> 3*4882a593SmuzhiyunDate: Mon, 3 Dec 2018 10:40:16 +0800 4*4882a593SmuzhiyunSubject: [PATCH 12/79] compositor: Support freezing display 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunFreeze display when the specified file(from env "WESTON_FREEZE_DISPLAY") 7*4882a593Smuzhiyunexists. 8*4882a593Smuzhiyun 9*4882a593SmuzhiyunFor example: 10*4882a593Smuzhiyunexport WESTON_FREEZE_DISPLAY=/tmp/.freeze 11*4882a593Smuzhiyuntouch $WESTON_FREEZE_DISPLAY 12*4882a593Smuzhiyunweston --tty=2 -Bdrm-backend.so& 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunSigned-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> 15*4882a593Smuzhiyun--- 16*4882a593Smuzhiyun libweston/compositor.c | 6 ++++++ 17*4882a593Smuzhiyun 1 file changed, 6 insertions(+) 18*4882a593Smuzhiyun 19*4882a593Smuzhiyundiff --git a/libweston/compositor.c b/libweston/compositor.c 20*4882a593Smuzhiyunindex f34c34cc..55751a7e 100644 21*4882a593Smuzhiyun--- a/libweston/compositor.c 22*4882a593Smuzhiyun+++ b/libweston/compositor.c 23*4882a593Smuzhiyun@@ -3433,6 +3433,11 @@ output_repaint_timer_handler(void *data) 24*4882a593Smuzhiyun struct timespec now; 25*4882a593Smuzhiyun int ret = 0; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun+ if (!access(getenv("WESTON_FREEZE_DISPLAY") ? : "", F_OK)) { 28*4882a593Smuzhiyun+ usleep(DEFAULT_REPAINT_WINDOW * 1000); 29*4882a593Smuzhiyun+ goto out; 30*4882a593Smuzhiyun+ } 31*4882a593Smuzhiyun+ 32*4882a593Smuzhiyun weston_compositor_read_presentation_clock(compositor, &now); 33*4882a593Smuzhiyun compositor->last_repaint_start = now; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun@@ -3467,6 +3472,7 @@ output_repaint_timer_handler(void *data) 36*4882a593Smuzhiyun wl_list_for_each(output, &compositor->output_list, link) 37*4882a593Smuzhiyun output->repainted = false; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun+out: 40*4882a593Smuzhiyun output_repaint_timer_arm(compositor); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun return 0; 43*4882a593Smuzhiyun-- 44*4882a593Smuzhiyun2.20.1 45*4882a593Smuzhiyun 46