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authorGuido Cella <guido@guidocella.xyz>2021-08-02 16:33:38 +0200
committerGuido Cella <guido@guidocella.xyz>2021-08-02 16:33:38 +0200
commitd175a58d733723fdeb307943b034fe7fda6086ed (patch)
treef4c37f929cefbac09accfc0bbf2b3356f13cb9c3
parent3b05eadeaf5e2de4caf127cfa07642342cccddbc (diff)
implement the presentation time protocol
This lets applications, such as mpv with --video-sync=display-resample, know accurately when frames are displayed and ensure smooth video playback.
-rw-r--r--dwl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/dwl.c b/dwl.c
index a2a0b69..20b01b0 100644
--- a/dwl.c
+++ b/dwl.c
@@ -29,6 +29,7 @@
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output_management_v1.h>
#include <wlr/types/wlr_pointer.h>
+#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_screencopy_v1.h>
@@ -317,6 +318,7 @@ static struct wl_list independents;
static struct wlr_idle *idle;
static struct wlr_layer_shell_v1 *layer_shell;
static struct wlr_output_manager_v1 *output_mgr;
+static struct wlr_presentation *presentation;
static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
static struct wlr_cursor *cursor;
@@ -1653,6 +1655,8 @@ render(struct wlr_surface *surface, int sx, int sy, void *data)
/* This lets the client know that we've displayed that frame and it can
* prepare another one now if it likes. */
wlr_surface_send_frame_done(surface, rdata->when);
+
+ wlr_presentation_surface_sampled_on_output(presentation, surface, output);
}
void
@@ -2116,6 +2120,8 @@ setup(void)
wl_signal_add(&output_mgr->events.apply, &output_mgr_apply);
wl_signal_add(&output_mgr->events.test, &output_mgr_test);
+ presentation = wlr_presentation_create(dpy, backend);
+
#ifdef XWAYLAND
/*
* Initialise the XWayland X server.