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[client/host/idd/lgmp] add additional timing metrics

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This commit is contained in:
Geoffrey McRae
2026-08-03 10:57:32 +10:00
parent 3035fa6282
commit 7533c855c2
18 changed files with 339 additions and 88 deletions
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25
host/src/app.c
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@@ -109,6 +109,7 @@ struct app
bool frameValid;
uint32_t frameSerial;
uint32_t formatVer;
uint64_t captureTime[LGMP_Q_FRAME_LEN];
unsigned int captureFormatVer;
bool hdr;
bool hdrPQ;
@@ -291,6 +292,7 @@ static bool sendFrame(CaptureResult result, bool * restart)
}
KVMFRFrame * fi = app.frame[app.captureIndex];
frame.captureTime = app.captureTime[app.captureIndex];
const uint32_t sdrWhiteLevel = frame.sdrWhiteLevel ?
frame.sdrWhiteLevel : KVMFR_SDR_WHITE_LEVEL_DEFAULT;
const bool metadataChanged =
@@ -396,6 +398,11 @@ static bool sendFrame(CaptureResult result, bool * restart)
// fi->offset is initialized at startup
fi->flags = flags;
fi->sdrWhiteLevel = sdrWhiteLevel;
fi->captureTime = frame.captureTime;
fi->postProcessTime = 0;
fi->copyTime = 0;
fi->timingSerial = 0;
__atomic_store_n(&fi->timingValid, 0, __ATOMIC_RELAXED);
if (frame.hdrMetadata)
{
memcpy(fi->hdrDisplayPrimary, frame.hdrDisplayPrimary,
@@ -433,10 +440,20 @@ static bool sendFrame(CaptureResult result, bool * restart)
return true;
}
const uint64_t copyStart = nanotime();
app.iface->getFrame(
app.captureIndex,
app.frameBuffer[app.captureIndex],
app.maxFrameSize);
app.maxFrameSize,
&frame);
const uint64_t copyEnd = nanotime();
fi->postProcessTime = frame.postProcessTime;
frame.copyTime = copyEnd - copyStart > frame.postProcessTime ?
copyEnd - copyStart - frame.postProcessTime : 0;
fi->copyTime = frame.copyTime;
fi->timingSerial = fi->frameSerial;
__atomic_store_n(&fi->timingValid, 1, __ATOMIC_RELEASE);
app.readIndex = app.captureIndex;
if (++app.captureIndex == LGMP_Q_FRAME_LEN)
@@ -1108,13 +1125,15 @@ int app_main(int argc, char * argv[])
nsleep(us * 1000);
}
const uint64_t captureStartTime = microtime();
const uint64_t captureStartTime = nanotime();
const CaptureResult result = app.iface->capture(
app.captureIndex, app.frameBuffer[app.captureIndex]);
app.captureTime[app.captureIndex] = nanotime() - captureStartTime;
if (likely(result == CAPTURE_RESULT_OK))
previousFrameTime = captureStartTime;
previousFrameTime = captureStartTime / 1000;
else if (likely(result == CAPTURE_RESULT_TIMEOUT))
{
if (!app.iface->asyncCapture)