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output, backend/drm: add wlr_output.color_primaries

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This contains the output's color primaries, if known.
This commit is contained in:
Simon Ser 2025-06-26 13:12:05 +02:00
parent 8c7041c4e8
commit b7fe653aac
3 changed files with 20 additions and 0 deletions
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17
backend/drm/util.c
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@ -50,6 +50,14 @@ enum wlr_output_mode_aspect_ratio get_picture_aspect_ratio(const drmModeModeInfo
}
}
static void copy_chromaticity_cie1931(struct wlr_color_cie1931_xy *dst,
const struct di_chromaticity_cie1931 *src) {
*dst = (struct wlr_color_cie1931_xy){
.x = src->x,
.y = src->y,
};
}
void parse_edid(struct wlr_drm_connector *conn, size_t len, const uint8_t *data) {
struct wlr_output *output = &conn->output;
@ -83,6 +91,15 @@ void parse_edid(struct wlr_drm_connector *conn, size_t len, const uint8_t *data)
output->model = di_info_get_model(info);
output->serial = di_info_get_serial(info);
const struct di_color_primaries *primaries = di_info_get_default_color_primaries(info);
if (primaries->has_primaries && primaries->has_default_white_point) {
copy_chromaticity_cie1931(&conn->color_primaries.red, &primaries->primary[0]);
copy_chromaticity_cie1931(&conn->color_primaries.green, &primaries->primary[1]);
copy_chromaticity_cie1931(&conn->color_primaries.blue, &primaries->primary[2]);
copy_chromaticity_cie1931(&conn->color_primaries.white, &primaries->default_white);
output->color_primaries = &conn->color_primaries;
}
const struct di_supported_signal_colorimetry *colorimetry = di_info_get_supported_signal_colorimetry(info);
bool has_bt2020 = colorimetry->bt2020_cycc || colorimetry->bt2020_ycc || colorimetry->bt2020_rgb;
if (conn->props.colorspace != 0 && has_bt2020) {

1
include/backend/drm/drm.h
View file

@ -195,6 +195,7 @@ struct wlr_drm_connector {
drmModeConnection status;
uint32_t id;
uint64_t max_bpc_bounds[2];
struct wlr_color_primaries color_primaries; // might be zero
struct wlr_drm_lease *lease;
struct wlr_drm_crtc *crtc;

2
include/wlr/types/wlr_output.h
View file

@ -197,6 +197,8 @@ struct wlr_output {
uint32_t supported_primaries; // bitfield of enum wlr_color_named_primaries
uint32_t supported_transfer_functions; // bitfield of enum wlr_color_transfer_function
const struct wlr_color_primaries *color_primaries; // NULL if unset
bool enabled;
float scale;
enum wl_output_subpixel subpixel;