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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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6
host/src/app.c
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@@ -515,8 +515,9 @@ static void sendPointer(bool newClient)
KVMFRCursor *cursor = lgmpHostMemPtr(mem);
cursor->x = app.pointerInfo.x;
cursor->y = app.pointerInfo.y;
cursor->sdrWhiteLevel = KVMFR_SDR_WHITE_LEVEL_DEFAULT;
const uint32_t flags = CURSOR_FLAG_POSITION |
const uint32_t flags = CURSOR_FLAG_POSITION | CURSOR_FLAG_VISIBLE_VALID |
(app.pointerShapeValid ? CURSOR_FLAG_SHAPE : 0) |
(app.pointerInfo.visible ? CURSOR_FLAG_VISIBLE : 0);
@@ -524,7 +525,7 @@ static void sendPointer(bool newClient)
return;
}
uint32_t flags = 0;
uint32_t flags = CURSOR_FLAG_VISIBLE_VALID;
PLGMPMemory mem;
if (app.pointerInfo.shapeUpdate)
{
@@ -539,6 +540,7 @@ static void sendPointer(bool newClient)
app.pointerIndex = 0;
}
KVMFRCursor *cursor = lgmpHostMemPtr(mem);
cursor->sdrWhiteLevel = KVMFR_SDR_WHITE_LEVEL_DEFAULT;
if (app.pointerInfo.positionUpdate || newClient)
{