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[idd] hdr: use iddcx 1.10 if possible and expose HDR support

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Geoffrey McRae
2026-06-03 00:05:41 +10:00
committed by Geoffrey McRae
parent dbb80ebd66
commit a10efc9e23
6 changed files with 337 additions and 27 deletions
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37
idd/LGIdd/CEdid.cpp
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@@ -123,7 +123,7 @@ void CEdid::Build(const CSettings::DisplayModes& modes)
base[17] = 36; // 1990 + 36 = 2026
base[18] = 1;
base[19] = 4;
base[20] = 0xa5; // digital input, 10-bit capable
base[20] = 0xb2; // digital input, 10-bit HDMI-A
base[21] = 52;
base[22] = 29;
base[23] = 0x78; // gamma 2.2
@@ -163,19 +163,42 @@ void CEdid::Build(const CSettings::DisplayModes& modes)
cta[1] = 0x03;
UINT dataOffset = 4;
// CTA extended colorimetry data block: advertise BT.2020 colorimetry.
// CTA HDR Static Metadata data block: HDR, PQ and HLG with type 1 metadata and luminance data.
cta[dataOffset++] = (7 << 5) | 6;
cta[dataOffset++] = 0x06;
cta[dataOffset++] = 0x0d;
cta[dataOffset++] = 0x01;
cta[dataOffset++] = 0xa2;
cta[dataOffset++] = 0xa2;
cta[dataOffset++] = 0x10;
// CTA extended colorimetry data block: advertise BT.2020 and DCI-P3 colorimetry.
cta[dataOffset++] = (7 << 5) | 3;
cta[dataOffset++] = 0x05;
cta[dataOffset++] = 0xe0;
cta[dataOffset++] = 0xd8;
cta[dataOffset++] = 0x00;
// CTA HDR Static Metadata data block: SDR, traditional HDR, PQ and HLG with type 1 metadata.
cta[dataOffset++] = (7 << 5) | 4;
cta[dataOffset++] = 0x06;
cta[dataOffset++] = 0x0f;
// HDMI Forum vendor-specific data block.
cta[dataOffset++] = (3 << 5) | 7;
cta[dataOffset++] = 0xd8;
cta[dataOffset++] = 0x5d;
cta[dataOffset++] = 0xc4;
cta[dataOffset++] = 0x01;
cta[dataOffset++] = 0x6e;
cta[dataOffset++] = 0x80;
cta[dataOffset++] = 0x00;
// HDMI vendor-specific data block.
cta[dataOffset++] = (3 << 5) | 8;
cta[dataOffset++] = 0x03;
cta[dataOffset++] = 0x0c;
cta[dataOffset++] = 0x00;
cta[dataOffset++] = 0x00;
cta[dataOffset++] = 0x00;
cta[dataOffset++] = 0x30;
cta[dataOffset++] = 0x00;
cta[dataOffset++] = 0x0b;
UINT ctaDtdOffset = dataOffset;
if (ctaDtdOffset < 4)
ctaDtdOffset = 4;