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Distance utility

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This commit is contained in:
Marcos Slomp
2026-05-04 16:17:58 -07:00
parent f06989e17c
commit 9649302da8
1 changed files with 7 additions and 9 deletions
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public/tracy/TracyD3D12.hpp
+7 -9
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@@ -369,7 +369,8 @@ namespace tracy
UINT64 gpuZoneBeginTimestamp = timestampBuffer[queryId];
UINT64 gpuZoneEndTimestamp = timestampBuffer[queryId+1];
int64_t diff = static_cast<int64_t>(gpuZoneEndTimestamp - m_window.shadowBuffer[shadowIdx+1]);
UINT64 baselineTimestamp = m_window.shadowBuffer[shadowIdx+1];
int64_t diff = Distance(baselineTimestamp, gpuZoneEndTimestamp);
if (diff == 0)
continue;
if (diff < 0)
@@ -415,13 +416,9 @@ namespace tracy
}
private:
// Update the window's latest known GPU timestamp only if ts is strictly "ahead"
// of the current value. Uses a signed-difference comparison to be robust against
// counter wrap-around (though UINT64 at any conceivable clock rate won't wrap
// within the lifetime of the process).
tracy_force_inline void UpdateLatestKnownGpuTimestamp(UINT64 timestamp)
{
int64_t diff = static_cast<int64_t>(timestamp - m_window.latestKnownGpuTimestamp);
int64_t diff = Distance(m_window.latestKnownGpuTimestamp, timestamp);
if (diff > 0)
m_window.latestKnownGpuTimestamp = timestamp;
}
@@ -457,9 +454,10 @@ namespace tracy
return static_cast<uint32_t>(logicalSlot % RingSize());
}
tracy_force_inline uint32_t RingCount(uint64_t begin, uint64_t end) const
tracy_force_inline static int64_t Distance(uint64_t begin, uint64_t end)
{
return static_cast<uint32_t>(end - begin);
// difference accounting for unsigned wrap-around
return static_cast<int64_t>(end - begin);
}
tracy_force_inline uint32_t NextQueryId()
@@ -478,7 +476,7 @@ namespace tracy
// immediately upon m_queryCounter being incremented, the late timestamp
// query may be collected as if it was the timestamp of the new query...
const uint64_t seqIdx = m_queryCounter.fetch_add(2, std::memory_order_relaxed);
if (RingCount(m_previousCheckpoint.load(), seqIdx) >= RingSize())
if (Distance(m_previousCheckpoint, seqIdx) >= RingSize())
{
ZoneScopedC(Color::Red4);
ZoneValue(int64_t(m_contextId));