diff options
| -rw-r--r-- | src/fb.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -86,15 +86,19 @@ typedef struct fb_t { #endif -/* Synchronize with the page flip by waiting for its event. */ -static inline void fb_drm_flip_wait(fb_t *fb) +/* Synchronously page flip to page */ +static int fb_flip_page_sync(fb_t *fb, _fb_page_t *page) { drmEventContext drm_ev_ctx = { .version = DRM_EVENT_CONTEXT_VERSION, .vblank_handler = NULL, .page_flip_handler = NULL }; - drmHandleEvent(fb->drm_fd, &drm_ev_ctx); + + if (drmModePageFlip(fb->drm_fd, fb->drm_crtc_id, page->drm_fb_id, DRM_MODE_PAGE_FLIP_EVENT, NULL) < 0) + return -1; + + return drmHandleEvent(fb->drm_fd, &drm_ev_ctx); } @@ -121,9 +125,8 @@ static void * fb_flipper_thread(void *_fb) pthread_mutex_unlock(&fb->ready_mutex); /* submit the next active page for page flip on vsync, and wait for it. */ - pexit_if(drmModePageFlip(fb->drm_fd, fb->drm_crtc_id, next_active_page->drm_fb_id, DRM_MODE_PAGE_FLIP_EVENT, NULL) < 0, + pexit_if(fb_flip_page_sync(fb, next_active_page) < 0, "unable to flip page"); - fb_drm_flip_wait(fb); /* now that we're displaying a new page, make the previously active one inactive so rendering can reuse it */ pthread_mutex_lock(&fb->inactive_mutex); |