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[idd] hdr: publish only per-content metadata

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Monitor-default HDR metadata describes the virtual display rather than
the captured content. Do not expose it through KVMFR or use it to select
downstream processing limits.

Only publish explicit NEW frame metadata and otherwise use the complete
PQ range internally.
This commit is contained in:
Geoffrey McRae
2026-07-19 20:41:36 +10:00
parent e18925f436
commit ad7d869aa1
5 changed files with 22 additions and 109 deletions
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53
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -1336,59 +1336,6 @@ CIndirectDeviceContext::GetColorTransform() const
return transform;
}
#ifdef HAS_IDDCX_110
void CIndirectDeviceContext::SetHDRActive(const struct IDDCX_HDR10_METADATA * hdrMeta)
{
AcquireSRWLockExclusive(&m_hdrLock);
if (!hdrMeta)
{
m_hdrActive = false;
ReleaseSRWLockExclusive(&m_hdrLock);
return;
}
m_hdrActive = true;
m_hdrDisplayPrimary[0][0] = hdrMeta->RedPrimary [0];
m_hdrDisplayPrimary[0][1] = hdrMeta->RedPrimary [1];
m_hdrDisplayPrimary[1][0] = hdrMeta->GreenPrimary[0];
m_hdrDisplayPrimary[1][1] = hdrMeta->GreenPrimary[1];
m_hdrDisplayPrimary[2][0] = hdrMeta->BluePrimary [0];
m_hdrDisplayPrimary[2][1] = hdrMeta->BluePrimary [1];
m_hdrWhitePoint [0] = hdrMeta->WhitePoint [0];
m_hdrWhitePoint [1] = hdrMeta->WhitePoint [1];
m_hdrMaxDisplayLuminance = hdrMeta->MaxMasteringLuminance;
m_hdrMinDisplayLuminance = hdrMeta->MinMasteringLuminance;
m_hdrMaxContentLightLevel = hdrMeta->MaxContentLightLevel;
m_hdrMaxFrameAverageLightLevel = hdrMeta->MaxFrameAverageLightLevel;
ReleaseSRWLockExclusive(&m_hdrLock);
}
#endif
bool CIndirectDeviceContext::GetHDRMetadata(D12FrameFormat & format) const
{
AcquireSRWLockShared(&m_hdrLock);
if (!m_hdrActive)
{
ReleaseSRWLockShared(&m_hdrLock);
return false;
}
memcpy(format.displayPrimary, m_hdrDisplayPrimary, sizeof(format.displayPrimary));
memcpy(format.whitePoint , m_hdrWhitePoint , sizeof(format.whitePoint ));
format.maxDisplayLuminance = m_hdrMaxDisplayLuminance;
format.minDisplayLuminance = m_hdrMinDisplayLuminance;
format.maxContentLightLevel = m_hdrMaxContentLightLevel;
format.maxFrameAverageLightLevel = m_hdrMaxFrameAverageLightLevel;
ReleaseSRWLockShared(&m_hdrLock);
return true;
}
void CIndirectDeviceContext::SendColorTransform()
{
if (!m_pointerQueue || !m_pointerTransformMemory[0])