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[client] wayland: fix hdr luminance scaling

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This commit is contained in:
Geoffrey McRae
2026-07-16 06:38:35 +10:00
committed by Geoffrey McRae
parent ff1631da67
commit 1b3305e1dc
1 changed files with 6 additions and 4 deletions
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10
client/displayservers/Wayland/gl.c
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@@ -280,13 +280,15 @@ void waylandSetHDRImageDescription(const uint16_t displayPrimary[3][2],
hdrPQ ? WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_ST2084_PQ
: WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_EXT_LINEAR);
// Set luminance range from metadata (values already in 0.0001 cd/m² units)
// Set luminance range from metadata.
// min_lum is in 0.0001 cd/m² units (multiplied by 10000 as per protocol).
// max_lum and reference_lum are in unscaled cd/m² units.
if (wlWm.cmHasLuminances)
wp_image_description_creator_params_v1_set_luminances(
wlWm.hdrImageCreator,
minDisplayLuminance > 0 ? minDisplayLuminance : 50,
maxDisplayLuminance > 0 ? maxDisplayLuminance : 10000000,
hdrPQ ? 2030000 : 800000);
minDisplayLuminance > 0 ? minDisplayLuminance / 10000 : 50,
maxDisplayLuminance > 0 ? maxDisplayLuminance / 10000 : 1000,
hdrPQ ? 203 : 80);
// Set mastering display primaries from frame HDR metadata.
// Always set when the compositor supports it, falling back to the