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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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9
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -1222,7 +1222,8 @@ void CIndirectDeviceContext::FinalizeFrameBuffer(unsigned frameIndex) const
fb->wp = m_height * m_pitch;
}
void CIndirectDeviceContext::SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info, const BYTE * data)
void CIndirectDeviceContext::SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info,
const BYTE * data, UINT sdrWhiteLevel)
{
PLGMPMemory mem;
if (info.CursorShapeInfo.CursorType == IDDCX_CURSOR_SHAPE_TYPE_UNINITIALIZED)
@@ -1239,9 +1240,11 @@ void CIndirectDeviceContext::SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info, co
}
KVMFRCursor * cursor = (KVMFRCursor *)lgmpHostMemPtr(mem);
cursor->sdrWhiteLevel = sdrWhiteLevel ?
sdrWhiteLevel : KVMFR_SDR_WHITE_LEVEL_DEFAULT;
m_cursorVisible = info.IsCursorVisible;
uint32_t flags = 0;
uint32_t flags = CURSOR_FLAG_VISIBLE_VALID;
if (info.IsCursorVisible)
{
@@ -1416,7 +1419,7 @@ void CIndirectDeviceContext::ResendCursor()
cursor->y = (int16_t)m_cursorY;
const uint32_t flags =
CURSOR_FLAG_POSITION | CURSOR_FLAG_SHAPE |
CURSOR_FLAG_POSITION | CURSOR_FLAG_SHAPE | CURSOR_FLAG_VISIBLE_VALID |
(m_cursorVisible ? CURSOR_FLAG_VISIBLE : 0);
LGMP_STATUS status;