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gamma_control_v1: add wlr_gamma_control_v1_get_color_transform()

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This commit is contained in:
Simon Ser 2025-07-02 18:28:06 +02:00
parent 74ce6c22a5
commit 91f4890ec2
2 changed files with 16 additions and 5 deletions
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2
include/wlr/types/wlr_gamma_control_v1.h
View file

@ -49,6 +49,8 @@ struct wlr_gamma_control_v1 *wlr_gamma_control_manager_v1_get_control(
struct wlr_gamma_control_manager_v1 *manager, struct wlr_output *output);
bool wlr_gamma_control_v1_apply(struct wlr_gamma_control_v1 *gamma_control,
struct wlr_output_state *output_state);
struct wlr_color_transform *wlr_gamma_control_v1_get_color_transform(
struct wlr_gamma_control_v1 *gamma_control);
void wlr_gamma_control_v1_send_failed_and_destroy(struct wlr_gamma_control_v1 *gamma_control);
#endif

19
types/wlr_gamma_control_v1.c
View file

@ -262,15 +262,24 @@ struct wlr_gamma_control_v1 *wlr_gamma_control_manager_v1_get_control(
return NULL;
}
struct wlr_color_transform *wlr_gamma_control_v1_get_color_transform(
struct wlr_gamma_control_v1 *gamma_control) {
if (gamma_control == NULL || gamma_control->table == NULL) {
return NULL;
}
const uint16_t *r = gamma_control->table;
const uint16_t *g = gamma_control->table + gamma_control->ramp_size;
const uint16_t *b = gamma_control->table + 2 * gamma_control->ramp_size;
return wlr_color_transform_init_lut_3x1d(gamma_control->ramp_size, r, g, b);
}
bool wlr_gamma_control_v1_apply(struct wlr_gamma_control_v1 *gamma_control,
struct wlr_output_state *output_state) {
struct wlr_color_transform *tr = NULL;
if (gamma_control != NULL && gamma_control->table != NULL) {
const uint16_t *r = gamma_control->table;
const uint16_t *g = gamma_control->table + gamma_control->ramp_size;
const uint16_t *b = gamma_control->table + 2 * gamma_control->ramp_size;
tr = wlr_color_transform_init_lut_3x1d(gamma_control->ramp_size, r, g, b);
tr = wlr_gamma_control_v1_get_color_transform(gamma_control);
if (tr == NULL) {
return false;
}