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[client] wayland: publish stable presentation cadence

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This commit is contained in:
Geoffrey McRae
2026-08-06 17:11:03 +10:00
parent 988675e53a
commit 1b78384da3
4 changed files with 26 additions and 5 deletions
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11
client/displayservers/Wayland/presentation.c
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@@ -39,6 +39,8 @@ static void presentationClockId(void * data,
struct wp_presentation * presentation, uint32_t clkId)
{
wlWm.clkId = clkId;
atomic_store_explicit(
&wlWm.presentationClockValid, true, memory_order_release);
}
static const struct wp_presentation_listener presentationListener = {
@@ -56,8 +58,6 @@ static void presentationFeedbackPresented(void * opaque,
uint32_t tvNsec, uint32_t refresh, uint32_t seqHi, uint32_t seqLo, uint32_t flags)
{
struct FrameData * data = opaque;
if (refresh)
atomic_store(&wlWm.presentationPeriod, refresh);
struct timespec present = {
.tv_sec = (uint64_t) tvSecHi << 32 | tvSecLo,
.tv_nsec = tvNsec,
@@ -96,6 +96,8 @@ bool waylandPresentationInit(void)
{
if (wlWm.presentation)
{
atomic_store_explicit(
&wlWm.presentationClockValid, false, memory_order_release);
wlWm.photonTimings = ringbuffer_new(256, sizeof(float));
wlWm.photonGraph = app_registerGraph("PHOTON", wlWm.photonTimings,
0.0f, 30.0f, NULL);
@@ -110,6 +112,8 @@ void waylandPresentationFree(void)
if (!wlWm.presentation)
return;
atomic_store_explicit(
&wlWm.presentationClockValid, false, memory_order_release);
wp_presentation_destroy(wlWm.presentation);
app_unregisterGraph(wlWm.photonGraph);
ringbuffer_free(&wlWm.photonTimings);
@@ -117,7 +121,8 @@ void waylandPresentationFree(void)
void waylandPresentationFrame(void)
{
if (!wlWm.presentation)
if (!wlWm.presentation || !atomic_load_explicit(
&wlWm.presentationClockValid, memory_order_acquire))
return;
struct FrameData * data = malloc(sizeof(*data));