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-rw-r--r--backend/backend.c7
-rw-r--r--backend/drm/backend.c6
-rw-r--r--backend/drm/drm.c12
-rw-r--r--include/backend/drm/drm.h2
-rw-r--r--include/wlr/backend.h4
-rw-r--r--include/wlr/backend/interface.h2
-rw-r--r--types/wlr_output.c6
7 files changed, 33 insertions, 6 deletions
diff --git a/backend/backend.c b/backend/backend.c
index 2d6464b7..b8cf8797 100644
--- a/backend/backend.c
+++ b/backend/backend.c
@@ -64,6 +64,13 @@ struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend) {
return NULL;
}
+clockid_t wlr_backend_get_present_clock(struct wlr_backend *backend) {
+ if (backend->impl->get_present_clock) {
+ return backend->impl->get_present_clock(backend);
+ }
+ return CLOCK_MONOTONIC;
+}
+
static size_t parse_outputs_env(const char *name) {
const char *outputs_str = getenv(name);
if (outputs_str == NULL) {
diff --git a/backend/drm/backend.c b/backend/drm/backend.c
index b298365e..b230613d 100644
--- a/backend/drm/backend.c
+++ b/backend/drm/backend.c
@@ -65,10 +65,16 @@ static struct wlr_renderer *backend_get_renderer(
}
}
+static clockid_t backend_get_present_clock(struct wlr_backend *backend) {
+ struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
+ return drm->clock;
+}
+
static struct wlr_backend_impl backend_impl = {
.start = backend_start,
.destroy = backend_destroy,
.get_renderer = backend_get_renderer,
+ .get_present_clock = backend_get_present_clock,
};
bool wlr_backend_is_drm(struct wlr_backend *b) {
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index ace0835e..753b6ab8 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -1,3 +1,4 @@
+#define _POSIX_C_SOURCE 199309L
#include <assert.h>
#include <drm_mode.h>
#include <EGL/egl.h>
@@ -27,8 +28,8 @@
#include "util/signal.h"
bool check_drm_features(struct wlr_drm_backend *drm) {
+ uint64_t cap;
if (drm->parent) {
- uint64_t cap;
if (drmGetCap(drm->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_IMPORT)) {
wlr_log(WLR_ERROR,
@@ -51,16 +52,21 @@ bool check_drm_features(struct wlr_drm_backend *drm) {
const char *no_atomic = getenv("WLR_DRM_NO_ATOMIC");
if (no_atomic && strcmp(no_atomic, "1") == 0) {
- wlr_log(WLR_DEBUG, "WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface");
+ wlr_log(WLR_DEBUG,
+ "WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface");
drm->iface = &legacy_iface;
} else if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) {
- wlr_log(WLR_DEBUG, "Atomic modesetting unsupported, using legacy DRM interface");
+ wlr_log(WLR_DEBUG,
+ "Atomic modesetting unsupported, using legacy DRM interface");
drm->iface = &legacy_iface;
} else {
wlr_log(WLR_DEBUG, "Using atomic DRM interface");
drm->iface = &atomic_iface;
}
+ int ret = drmGetCap(drm->fd, DRM_CAP_TIMESTAMP_MONOTONIC, &cap);
+ drm->clock = (ret == 0 && cap == 1) ? CLOCK_MONOTONIC : CLOCK_REALTIME;
+
return true;
}
diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
index 3c728808..de5212d3 100644
--- a/include/backend/drm/drm.h
+++ b/include/backend/drm/drm.h
@@ -6,6 +6,7 @@
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
+#include <time.h>
#include <wayland-server.h>
#include <wayland-util.h>
#include <wlr/backend/drm.h>
@@ -67,6 +68,7 @@ struct wlr_drm_backend {
struct wlr_drm_backend *parent;
const struct wlr_drm_interface *iface;
+ clockid_t clock;
int fd;
diff --git a/include/wlr/backend.h b/include/wlr/backend.h
index dfb8d2a8..aee45b73 100644
--- a/include/wlr/backend.h
+++ b/include/wlr/backend.h
@@ -62,5 +62,9 @@ struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend);
* Might return NULL for backends that don't use a session.
*/
struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend);
+/**
+ * Returns the clock used by the backend for presentation feedback.
+ */
+clockid_t wlr_backend_get_present_clock(struct wlr_backend *backend);
#endif
diff --git a/include/wlr/backend/interface.h b/include/wlr/backend/interface.h
index 2c300709..a930c241 100644
--- a/include/wlr/backend/interface.h
+++ b/include/wlr/backend/interface.h
@@ -10,6 +10,7 @@
#define WLR_BACKEND_INTERFACE_H
#include <stdbool.h>
+#include <time.h>
#include <wlr/backend.h>
#include <wlr/render/egl.h>
@@ -18,6 +19,7 @@ struct wlr_backend_impl {
void (*destroy)(struct wlr_backend *backend);
struct wlr_renderer *(*get_renderer)(struct wlr_backend *backend);
struct wlr_session *(*get_session)(struct wlr_backend *backend);
+ clockid_t (*get_present_clock)(struct wlr_backend *backend);
};
/**
diff --git a/types/wlr_output.c b/types/wlr_output.c
index 4ffe561a..1baa5027 100644
--- a/types/wlr_output.c
+++ b/types/wlr_output.c
@@ -18,8 +18,6 @@
#define OUTPUT_VERSION 3
-#define DEFAULT_PRESENT_CLOCK CLOCK_MONOTONIC
-
static void output_send_to_resource(struct wl_resource *resource) {
struct wlr_output *output = wlr_output_from_resource(resource);
const uint32_t version = wl_resource_get_version(resource);
@@ -268,6 +266,7 @@ void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
wl_signal_init(&output->events.frame);
wl_signal_init(&output->events.needs_swap);
wl_signal_init(&output->events.swap_buffers);
+ wl_signal_init(&output->events.present);
wl_signal_init(&output->events.enable);
wl_signal_init(&output->events.mode);
wl_signal_init(&output->events.scale);
@@ -566,7 +565,8 @@ void wlr_output_send_present(struct wlr_output *output, struct timespec *when,
unsigned seq, uint32_t flags) {
struct timespec now;
if (when == NULL) {
- if (!clock_gettime(DEFAULT_PRESENT_CLOCK, &now)) {
+ clockid_t clock = wlr_backend_get_present_clock(output->backend);
+ if (!clock_gettime(clock, &now)) {
wlr_log_errno(WLR_ERROR, "failed to send output present event: "
"failed to read clock");
return;
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-26 21:38:02 +0000