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vulkan/wsi: remove support for VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT

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It's not really clear whether or not it should use gamma 2.2 or the piece-wise
transfer function, or how clients would use it for wider gamut in general.
Currently no compositors I know of support ext_srgb, so this shouldn't affect
applications in practice.

Signed-off-by: Xaver Hugl <xaver.hugl@kde.org>
Fixes: 4b663d56 ("vulkan/wsi: implement support for VK_EXT_hdr_metadata on Wayland")
(cherry picked from commit 14fcf145e3)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38167>
This commit is contained in:
Xaver Hugl 2025-07-29 16:10:42 +02:00 • committed by Dylan Baker
parent 2a0a2cc5b0
commit 6a7effe059
2 changed files with 4 additions and 7 deletions
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2
.pick_status.json
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@ -594,7 +594,7 @@
"description": "vulkan/wsi: remove support for VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT",
"nominated": true,
"nomination_type": 2,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "4b663d561b877c24fe1f500e14cf7efc62fd5373",
"notes": null

9
src/vulkan/wsi/wsi_common_wayland.c
View file

@ -1002,12 +1002,9 @@ struct Colorspace colorspace_mapping[] = {
/* VK_COLOR_SPACE_ADOBERGB_NONLINEAR_EXT is left out because there's no
* exactly matching transfer function in the Wayland protocol */
/* VK_COLOR_SPACE_PASS_THROUGH_EXT is handled elsewhere */
{
.colorspace = VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT,
.primaries = WP_COLOR_MANAGER_V1_PRIMARIES_SRGB,
.tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_EXT_SRGB,
.should_use_hdr_metadata = true,
},
/* VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT is intentionally not added
* as it's a bit unclear how exactly it should be used
* and whether or not the transfer function should be gamma 2.2 or piece-wise */
/* VK_COLOR_SPACE_DISPLAY_NATIVE_AMD isn't supported */
/* VK_COLORSPACE_SRGB_NONLINEAR_KHR is just an alias */
/* VK_COLOR_SPACE_DCI_P3_LINEAR_EXT is just an alias */