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[idd] hdr: complete HDR display and cursor metadata

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Publish BT.2020 chromaticities in the virtual monitor EDID so
Windows receives a valid HDR colour volume.

Extend cursor messages with their IddCx SDR white level and an
explicit visibility-valid flag. Consumers can then calibrate cursors
without treating colour-transform-only messages as cursor hides.
This commit is contained in:
Geoffrey McRae
2026-07-19 04:42:03 +10:00
parent e9d0c88764
commit 20225f05d1
7 changed files with 62 additions and 10 deletions
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3
idd/LGIdd/CIndirectDeviceContext.h
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@@ -225,7 +225,8 @@ public:
void WriteFrameBuffer(unsigned frameIndex, void* src, size_t offset, size_t len, bool setWritePos) const;
void FinalizeFrameBuffer(unsigned frameIndex) const;
void SendCursor(const IDARG_OUT_QUERY_HWCURSOR & info, const BYTE * data);
void SendCursor(const IDARG_OUT_QUERY_HWCURSOR & info, const BYTE * data,
UINT sdrWhiteLevel);
// Tracks HDR state from EvtIddCxMonitorSetDefaultHdrMetadata
void SetHDRActive(const struct IDDCX_HDR10_METADATA * hdrMeta);