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#pragma once
#include <vector>
#include <cstdint>
#include <optional>
namespace dxvk::wsi {
/**
* \brief Edid blob
*/
using WsiEdidData = std::vector<uint8_t>;
/**
* \brief Display colorimetry info
*/
struct WsiDisplayMetadata {
bool supportsST2084;
float redPrimary[2];
float greenPrimary[2];
float bluePrimary[2];
float whitePoint[2];
float minLuminance;
float maxLuminance;
float maxFullFrameLuminance;
};
/**
* \brief Parse colorimetry info from the EDID
*
* \param [in] edidData The edid blob
* \returns The display metadata + colorimetry info
*/
std::optional<WsiDisplayMetadata> parseColorimetryInfo(
const WsiEdidData& edidData);
inline void NormalizeDisplayMetadata(bool isHDR, wsi::WsiDisplayMetadata& metadata) {
// Use some dummy info when we have no hdr static metadata for the
// display or we were unable to obtain an EDID.
//
// These dummy values are the same as what Windows DXGI will output
// for panels with broken EDIDs such as LG OLEDs displays which
// have an entirely zeroed out luminance section in the hdr static
// metadata block.
//
// (Spec has 0 as 'undefined', which isn't really useful for an app
// to tonemap against.)
if (metadata.minLuminance == 0.0f)
metadata.minLuminance = 0.01f;
if (metadata.maxLuminance == 0.0f)
metadata.maxLuminance = 1499.0f;
if (metadata.maxFullFrameLuminance == 0.0f)
metadata.maxFullFrameLuminance = 799.0f;
// If we have no RedPrimary/GreenPrimary/BluePrimary/WhitePoint due to
// the lack of a monitor exposing the chroma block or the lack of an EDID,
// simply just fall back to Rec.709 or P3 values depending on the default
// ColorSpace we started in.
// (Don't change based on punting, as this should be static for a display.)
if (metadata.redPrimary[0] == 0.0f && metadata.redPrimary[1] == 0.0f
&& metadata.greenPrimary[0] == 0.0f && metadata.greenPrimary[1] == 0.0f
&& metadata.bluePrimary[0] == 0.0f && metadata.bluePrimary[1] == 0.0f
&& metadata.whitePoint[0] == 0.0f && metadata.whitePoint[1] == 0.0f) {
if (!isHDR) {
// sRGB ColorSpace -> Rec.709 Primaries
metadata.redPrimary[0] = 0.640f;
metadata.redPrimary[1] = 0.330f;
metadata.greenPrimary[0] = 0.300f;
metadata.greenPrimary[1] = 0.600f;
metadata.bluePrimary[0] = 0.150f;
metadata.bluePrimary[1] = 0.060f;
metadata.whitePoint[0] = 0.3127f;
metadata.whitePoint[1] = 0.3290f;
} else {
// HDR10 ColorSpace -> P3 Primaries
metadata.redPrimary[0] = 0.680f;
metadata.redPrimary[1] = 0.320f;
metadata.greenPrimary[0] = 0.265f;
metadata.greenPrimary[1] = 0.690f;
metadata.bluePrimary[0] = 0.150f;
metadata.bluePrimary[1] = 0.060f;
metadata.whitePoint[0] = 0.3127f;
metadata.whitePoint[1] = 0.3290f;
}
}
}
}
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