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wlr_scene: Introduce wlr_scene_set_gamma_control_manager_v1

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master
Alexander Orzechowski 4 months ago
parent 23202e192c
commit 515275ee72
2 changed files with 107 additions and 1 deletions
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15
include/wlr/types/wlr_scene.h
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@ -42,6 +42,7 @@ struct wlr_scene_output_layout;
struct wlr_presentation;
struct wlr_linux_dmabuf_v1;
struct wlr_gamma_control_manager_v1;
struct wlr_output_state;
typedef bool (*wlr_scene_buffer_point_accepts_input_func_t)(
@ -100,10 +101,13 @@ struct wlr_scene {
// May be NULL
struct wlr_linux_dmabuf_v1 *linux_dmabuf_v1;
struct wlr_gamma_control_manager_v1 *gamma_control_manager_v1;
// private state
struct wl_listener linux_dmabuf_v1_destroy;
struct wl_listener gamma_control_manager_v1_destroy;
struct wl_listener gamma_control_manager_v1_set_gamma;
enum wlr_scene_debug_damage_option debug_damage_option;
bool direct_scanout;
@ -220,6 +224,9 @@ struct wlr_scene_output {
uint8_t index;
bool prev_scanout;
bool gamma_lut_changed;
struct wlr_gamma_control_v1 *gamma_lut;
struct wl_listener output_commit;
struct wl_listener output_damage;
struct wl_listener output_needs_frame;
@ -326,6 +333,14 @@ struct wlr_scene *wlr_scene_create(void);
void wlr_scene_set_linux_dmabuf_v1(struct wlr_scene *scene,
struct wlr_linux_dmabuf_v1 *linux_dmabuf_v1);
/**
* Handles gamma_control_v1 for all outputs in the scene.
*
* Asserts that a struct wlr_gamma_control_manager_v1 hasn't already been set
* for the scene.
*/
void wlr_scene_set_gamma_control_manager_v1(struct wlr_scene *scene,
struct wlr_gamma_control_manager_v1 *gamma_control);
/**
* Add a node displaying nothing but its children.

93
types/scene/wlr_scene.c
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@ -7,6 +7,7 @@
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_damage_ring.h>
#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_linux_dmabuf_v1.h>
#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_scene.h>
@ -136,6 +137,8 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
}
wl_list_remove(&scene->linux_dmabuf_v1_destroy.link);
wl_list_remove(&scene->gamma_control_manager_v1_destroy.link);
wl_list_remove(&scene->gamma_control_manager_v1_set_gamma.link);
} else {
assert(node->parent);
}
@ -169,6 +172,8 @@ struct wlr_scene *wlr_scene_create(void) {
wl_list_init(&scene->outputs);
wl_list_init(&scene->linux_dmabuf_v1_destroy.link);
wl_list_init(&scene->gamma_control_manager_v1_destroy.link);
wl_list_init(&scene->gamma_control_manager_v1_set_gamma.link);
const char *debug_damage_options[] = {
"none",
@ -1429,6 +1434,52 @@ void wlr_scene_set_linux_dmabuf_v1(struct wlr_scene *scene,
wl_signal_add(&linux_dmabuf_v1->events.destroy, &scene->linux_dmabuf_v1_destroy);
}
static void scene_handle_gamma_control_manager_v1_set_gamma(struct wl_listener *listener,
void *data) {
const struct wlr_gamma_control_manager_v1_set_gamma_event *event = data;
struct wlr_scene *scene =
wl_container_of(listener, scene, gamma_control_manager_v1_set_gamma);
struct wlr_scene_output *output = wlr_scene_get_scene_output(scene, event->output);
if (!output) {
// this scene might not own this output.
return;
}
output->gamma_lut_changed = true;
output->gamma_lut = event->control;
wlr_output_schedule_frame(output->output);
}
static void scene_handle_gamma_control_manager_v1_destroy(struct wl_listener *listener,
void *data) {
struct wlr_scene *scene =
wl_container_of(listener, scene, gamma_control_manager_v1_destroy);
wl_list_remove(&scene->gamma_control_manager_v1_destroy.link);
wl_list_init(&scene->gamma_control_manager_v1_destroy.link);
wl_list_remove(&scene->gamma_control_manager_v1_set_gamma.link);
wl_list_init(&scene->gamma_control_manager_v1_set_gamma.link);
scene->gamma_control_manager_v1 = NULL;
struct wlr_scene_output *output;
wl_list_for_each(output, &scene->outputs, link) {
output->gamma_lut_changed = false;
output->gamma_lut = NULL;
}
}
void wlr_scene_set_gamma_control_manager_v1(struct wlr_scene *scene,
struct wlr_gamma_control_manager_v1 *gamma_control) {
assert(scene->gamma_control_manager_v1 == NULL);
scene->gamma_control_manager_v1 = gamma_control;
scene->gamma_control_manager_v1_destroy.notify =
scene_handle_gamma_control_manager_v1_destroy;
wl_signal_add(&gamma_control->events.destroy, &scene->gamma_control_manager_v1_destroy);
scene->gamma_control_manager_v1_set_gamma.notify =
scene_handle_gamma_control_manager_v1_set_gamma;
wl_signal_add(&gamma_control->events.set_gamma, &scene->gamma_control_manager_v1_set_gamma);
}
static void scene_output_handle_destroy(struct wlr_addon *addon) {
struct wlr_scene_output *scene_output =
wl_container_of(addon, scene_output, addon);
@ -1496,6 +1547,13 @@ static void scene_output_handle_commit(struct wl_listener *listener, void *data)
!wl_list_empty(&scene_output->damage_highlight_regions)) {
wlr_output_schedule_frame(scene_output->output);
}
// Next time the output is enabled, try to re-apply the gamma LUT
if (scene_output->scene->gamma_control_manager_v1 &&
(state->committed & WLR_OUTPUT_STATE_ENABLED) &&
!scene_output->output->enabled) {
scene_output->gamma_lut_changed = true;
}
}
static void scene_output_handle_damage(struct wl_listener *listener, void *data) {
@ -1820,7 +1878,7 @@ static bool scene_entry_try_direct_scanout(struct render_list_entry *entry,
bool wlr_scene_output_needs_frame(struct wlr_scene_output *scene_output) {
return scene_output->output->needs_frame || pixman_region32_not_empty(
&scene_output->pending_commit_damage);
&scene_output->pending_commit_damage) || scene_output->gamma_lut_changed;
}
bool wlr_scene_output_commit(struct wlr_scene_output *scene_output,
@ -1846,6 +1904,35 @@ out:
return ok;
}
static void scene_output_state_attempt_gamma(struct wlr_scene_output *scene_output,
struct wlr_output_state *state) {
if (!scene_output->gamma_lut_changed) {
return;
}
struct wlr_output_state gamma_pending = {0};
if (!wlr_output_state_copy(&gamma_pending, state)) {
return;
}
if (!wlr_gamma_control_v1_apply(scene_output->gamma_lut, &gamma_pending)) {
wlr_output_state_finish(&gamma_pending);
return;
}
scene_output->gamma_lut_changed = false;
if (!wlr_output_test_state(scene_output->output, &gamma_pending)) {
wlr_gamma_control_v1_send_failed_and_destroy(scene_output->gamma_lut);
scene_output->gamma_lut = NULL;
wlr_output_state_finish(&gamma_pending);
return;
}
wlr_output_state_copy(state, &gamma_pending);
wlr_output_state_finish(&gamma_pending);
}
bool wlr_scene_output_build_state(struct wlr_scene_output *scene_output,
struct wlr_output_state *state, const struct wlr_scene_output_state_options *options) {
struct wlr_scene_output_state_options default_options = {0};
@ -1982,6 +2069,8 @@ bool wlr_scene_output_build_state(struct wlr_scene_output *scene_output,
}
if (scanout) {
scene_output_state_attempt_gamma(scene_output, state);
if (timer) {
struct timespec end_time, duration;
clock_gettime(CLOCK_MONOTONIC, &end_time);
@ -2141,6 +2230,8 @@ bool wlr_scene_output_build_state(struct wlr_scene_output *scene_output,
scene_output->in_point);
}
scene_output_state_attempt_gamma(scene_output, state);
return true;
}

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