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output: Check the EDID for the supported sink Colorimetry

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Just like the HDR Metadata property the Colorspace property values only
indicate that the display driver supports signaling certain colorimetry.
It does not indidcate that the sink actually supports processing the
colorimetry. For this we have to look up the colorimetry support in the
EDID.

The default colorimetry is always supported. If we want bt.2020 we might
get either the RGB or YCC variant even if we ask for the RGB variant but
there is nothing we can do about it so let's just pretend it's a driver
issue.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2919>
This commit is contained in:
Sebastian Wick
2023-03-17 01:17:45 +01:00
parent 754a1a1ce6
commit cca07612b8
3 changed files with 45 additions and 10 deletions
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20
src/backends/native/meta-output-kms.c
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@ -139,16 +139,26 @@ meta_output_kms_get_privacy_screen_state (MetaOutput *output)
return connector_state->privacy_screen_state;
}
static uint64_t
meta_output_kms_get_supported_color_spaces (MetaOutput *output)
static gboolean
meta_output_kms_is_color_space_supported (MetaOutput *output,
MetaOutputColorspace color_space)
{
MetaOutputKms *output_kms = META_OUTPUT_KMS (output);
const MetaKmsConnectorState *connector_state;
const MetaOutputInfo *output_info;
output_info = meta_output_get_info (output);
if (!meta_output_info_is_color_space_supported (output_info, color_space))
return FALSE;
connector_state =
meta_kms_connector_get_current_state (output_kms->kms_connector);
return connector_state->colorspace.supported;
if (!(connector_state->colorspace.supported & (1 << color_space)))
return FALSE;
return TRUE;
}
static gboolean
@ -535,8 +545,8 @@ meta_output_kms_class_init (MetaOutputKmsClass *klass)
output_class->get_privacy_screen_state =
meta_output_kms_get_privacy_screen_state;
output_class->get_supported_color_spaces =
meta_output_kms_get_supported_color_spaces;
output_class->is_color_space_supported =
meta_output_kms_is_color_space_supported;
output_class->is_hdr_metadata_supported =
meta_output_kms_is_hdr_metadata_supported;