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screencopy: Implement damage reporting

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This commit is contained in:
Andri Yngvason 2019-10-19 14:46:43 +00:00 committed by Drew DeVault
parent 2a63f4fc61
commit 61a6f2b928
2 changed files with 208 additions and 28 deletions
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10
include/wlr/types/wlr_screencopy_v1.h
View file

@ -27,9 +27,15 @@ struct wlr_screencopy_manager_v1 {
void *data;
};
struct wlr_screencopy_v1_client {
int ref;
struct wlr_screencopy_manager_v1 *manager;
struct wl_list damages;
};
struct wlr_screencopy_frame_v1 {
struct wl_resource *resource;
struct wlr_screencopy_manager_v1 *manager;
struct wlr_screencopy_v1_client *client;
struct wl_list link;
enum wl_shm_format format;
@ -38,6 +44,8 @@ struct wlr_screencopy_frame_v1 {
bool overlay_cursor, cursor_locked;
bool with_damage;
struct wl_shm_buffer *buffer;
struct wl_listener buffer_destroy;

226
types/wlr_screencopy_v1.c
View file

@ -8,10 +8,119 @@
#include "wlr-screencopy-unstable-v1-protocol.h"
#include "util/signal.h"
#define SCREENCOPY_MANAGER_VERSION 1
#define SCREENCOPY_MANAGER_VERSION 2
struct screencopy_damage {
struct wl_list link;
struct wlr_output *output;
struct pixman_region32 damage;
struct wl_listener output_precommit;
struct wl_listener output_destroy;
uint32_t last_commit_seq;
};
static const struct zwlr_screencopy_frame_v1_interface frame_impl;
static struct screencopy_damage *screencopy_damage_find(
struct wlr_screencopy_v1_client *client,
struct wlr_output *output) {
struct screencopy_damage *damage;
wl_list_for_each(damage, &client->damages, link) {
if (damage->output == output) {
return damage;
}
}
return NULL;
}
static void screencopy_damage_accumulate(struct screencopy_damage *damage) {
struct pixman_region32 *region = &damage->damage;
struct wlr_output *output = damage->output;
/* This check is done so damage that has been added and cleared in the
* frame precommit handler is not added again after it has been handled.
*/
if (damage->last_commit_seq == output->commit_seq) {
return;
}
pixman_region32_union(region, region, &output->pending.damage);
pixman_region32_intersect_rect(region, region, 0, 0, output->width,
output->height);
damage->last_commit_seq = output->commit_seq;
}
static void screencopy_damage_handle_output_precommit(
struct wl_listener *listener, void *data) {
struct screencopy_damage *damage =
wl_container_of(listener, damage, output_precommit);
screencopy_damage_accumulate(damage);
}
static void screencopy_damage_destroy(struct screencopy_damage *damage) {
wl_list_remove(&damage->output_destroy.link);
wl_list_remove(&damage->output_precommit.link);
wl_list_remove(&damage->link);
pixman_region32_fini(&damage->damage);
free(damage);
}
static void screencopy_damage_handle_output_destroy(
struct wl_listener *listener, void *data) {
struct screencopy_damage *damage =
wl_container_of(listener, damage, output_destroy);
screencopy_damage_destroy(damage);
}
static struct screencopy_damage *screencopy_damage_create(
struct wlr_screencopy_v1_client *client,
struct wlr_output *output) {
struct screencopy_damage *damage =
calloc(1, sizeof(struct screencopy_damage));
if (!damage) {
return NULL;
}
damage->output = output;
damage->last_commit_seq = output->commit_seq - 1;
pixman_region32_init_rect(&damage->damage, 0, 0, output->width,
output->height);
wl_list_insert(&client->damages, &damage->link);
wl_signal_add(&output->events.precommit, &damage->output_precommit);
damage->output_precommit.notify =
screencopy_damage_handle_output_precommit;
wl_signal_add(&output->events.destroy, &damage->output_destroy);
damage->output_destroy.notify = screencopy_damage_handle_output_destroy;
return damage;
}
static struct screencopy_damage *screencopy_damage_get_or_create(
struct wlr_screencopy_v1_client *client,
struct wlr_output *output) {
struct screencopy_damage *damage = screencopy_damage_find(client, output);
return damage ? damage : screencopy_damage_create(client, output);
}
static void client_unref(struct wlr_screencopy_v1_client *client) {
assert(client->ref > 0);
if (--client->ref != 0) {
return;
}
struct screencopy_damage *damage, *tmp_damage;
wl_list_for_each_safe(damage, tmp_damage, &client->damages, link) {
screencopy_damage_destroy(damage);
}
free(client);
}
static struct wlr_screencopy_frame_v1 *frame_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
@ -36,6 +145,7 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
wl_list_remove(&frame->buffer_destroy.link);
// Make the frame resource inert
wl_resource_set_user_data(frame->resource, NULL);
client_unref(frame->client);
free(frame);
}
@ -52,6 +162,17 @@ static void frame_handle_output_precommit(struct wl_listener *listener,
return;
}
struct screencopy_damage *damage = NULL;
if (frame->with_damage) {
damage = screencopy_damage_get_or_create(frame->client, output);
if (damage) {
screencopy_damage_accumulate(damage);
if (!pixman_region32_not_empty(&damage->damage)) {
return;
}
}
}
wl_list_remove(&frame->output_precommit.link);
wl_list_init(&frame->output_precommit.link);
@ -81,6 +202,22 @@ static void frame_handle_output_precommit(struct wl_listener *listener,
zwlr_screencopy_frame_v1_send_flags(frame->resource, flags);
// TODO: send fine-grained damage events
if (damage) {
struct pixman_box32 *damage_box =
pixman_region32_extents(&damage->damage);
int damage_x = damage_box->x1;
int damage_y = damage_box->y1;
int damage_width = damage_box->x2 - damage_box->x1;
int damage_height = damage_box->y2 - damage_box->y1;
zwlr_screencopy_frame_v1_send_damage(frame->resource,
damage_x, damage_y, damage_width, damage_height);
pixman_region32_clear(&damage->damage);
}
time_t tv_sec = event->when->tv_sec;
uint32_t tv_sec_hi = (sizeof(tv_sec) > 4) ? tv_sec >> 32 : 0;
uint32_t tv_sec_lo = tv_sec & 0xFFFFFFFF;
@ -116,7 +253,7 @@ static void frame_handle_buffer_destroy(struct wl_listener *listener,
frame_destroy(frame);
}
static void frame_handle_copy(struct wl_client *client,
static void frame_handle_copy(struct wl_client *wl_client,
struct wl_resource *frame_resource,
struct wl_resource *buffer_resource) {
struct wlr_screencopy_frame_v1 *frame = frame_from_resource(frame_resource);
@ -185,7 +322,18 @@ static void frame_handle_copy(struct wl_client *client,
}
}
static void frame_handle_destroy(struct wl_client *client,
static void frame_handle_copy_with_damage(struct wl_client *wl_client,
struct wl_resource *frame_resource,
struct wl_resource *buffer_resource) {
struct wlr_screencopy_frame_v1 *frame = frame_from_resource(frame_resource);
if (frame == NULL) {
return;
}
frame->with_damage = true;
frame_handle_copy(wl_client, frame_resource, buffer_resource);
}
static void frame_handle_destroy(struct wl_client *wl_client,
struct wl_resource *frame_resource) {
wl_resource_destroy(frame_resource);
}
@ -193,6 +341,7 @@ static void frame_handle_destroy(struct wl_client *client,
static const struct zwlr_screencopy_frame_v1_interface frame_impl = {
.copy = frame_handle_copy,
.destroy = frame_handle_destroy,
.copy_with_damage = frame_handle_copy_with_damage,
};
static void frame_handle_resource_destroy(struct wl_resource *frame_resource) {
@ -203,38 +352,41 @@ static void frame_handle_resource_destroy(struct wl_resource *frame_resource) {
static const struct zwlr_screencopy_manager_v1_interface manager_impl;
static struct wlr_screencopy_manager_v1 *manager_from_resource(
static struct wlr_screencopy_v1_client *client_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&zwlr_screencopy_manager_v1_interface, &manager_impl));
return wl_resource_get_user_data(resource);
}
static void capture_output(struct wl_client *client,
struct wlr_screencopy_manager_v1 *manager, uint32_t version, uint32_t id,
int32_t overlay_cursor, struct wlr_output *output,
static void capture_output(struct wl_client *wl_client,
struct wlr_screencopy_v1_client *client, uint32_t version,
uint32_t id, int32_t overlay_cursor, struct wlr_output *output,
const struct wlr_box *box) {
struct wlr_screencopy_frame_v1 *frame =
calloc(1, sizeof(struct wlr_screencopy_frame_v1));
if (frame == NULL) {
wl_client_post_no_memory(client);
wl_client_post_no_memory(wl_client);
return;
}
frame->manager = manager;
frame->output = output;
frame->overlay_cursor = !!overlay_cursor;
frame->resource = wl_resource_create(client,
frame->resource = wl_resource_create(wl_client,
&zwlr_screencopy_frame_v1_interface, version, id);
if (frame->resource == NULL) {
free(frame);
wl_client_post_no_memory(client);
wl_client_post_no_memory(wl_client);
return;
}
frame->client = client;
client->ref++;
wl_resource_set_implementation(frame->resource, &frame_impl, frame,
frame_handle_resource_destroy);
wl_list_insert(&manager->frames, &frame->link);
wl_list_insert(&client->manager->frames, &frame->link);
wl_list_init(&frame->output_precommit.link);
wl_list_init(&frame->output_enable.link);
@ -283,23 +435,24 @@ error:
frame_destroy(frame);
}
static void manager_handle_capture_output(struct wl_client *client,
static void manager_handle_capture_output(struct wl_client *wl_client,
struct wl_resource *manager_resource, uint32_t id,
int32_t overlay_cursor, struct wl_resource *output_resource) {
struct wlr_screencopy_manager_v1 *manager =
manager_from_resource(manager_resource);
struct wlr_screencopy_v1_client *client =
client_from_resource(manager_resource);
uint32_t version = wl_resource_get_version(manager_resource);
struct wlr_output *output = wlr_output_from_resource(output_resource);
capture_output(client, manager, version, id, overlay_cursor, output, NULL);
capture_output(wl_client, client, version, id, overlay_cursor, output,
NULL);
}
static void manager_handle_capture_output_region(struct wl_client *client,
static void manager_handle_capture_output_region(struct wl_client *wl_client,
struct wl_resource *manager_resource, uint32_t id,
int32_t overlay_cursor, struct wl_resource *output_resource,
int32_t x, int32_t y, int32_t width, int32_t height) {
struct wlr_screencopy_manager_v1 *manager =
manager_from_resource(manager_resource);
struct wlr_screencopy_v1_client *client =
client_from_resource(manager_resource);
uint32_t version = wl_resource_get_version(manager_resource);
struct wlr_output *output = wlr_output_from_resource(output_resource);
@ -309,10 +462,11 @@ static void manager_handle_capture_output_region(struct wl_client *client,
.width = width,
.height = height,
};
capture_output(client, manager, version, id, overlay_cursor, output, &box);
capture_output(wl_client, client, version, id, overlay_cursor, output,
&box);
}
static void manager_handle_destroy(struct wl_client *client,
static void manager_handle_destroy(struct wl_client *wl_client,
struct wl_resource *manager_resource) {
wl_resource_destroy(manager_resource);
}
@ -324,23 +478,41 @@ static const struct zwlr_screencopy_manager_v1_interface manager_impl = {
};
void manager_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_screencopy_v1_client *client =
client_from_resource(resource);
client_unref(client);
wl_list_remove(wl_resource_get_link(resource));
}
static void manager_bind(struct wl_client *client, void *data, uint32_t version,
uint32_t id) {
static void manager_bind(struct wl_client *wl_client, void *data,
uint32_t version, uint32_t id) {
struct wlr_screencopy_manager_v1 *manager = data;
struct wl_resource *resource = wl_resource_create(client,
struct wlr_screencopy_v1_client *client =
calloc(1, sizeof(struct wlr_screencopy_v1_client));
if (client == NULL) {
goto failure;
}
struct wl_resource *resource = wl_resource_create(wl_client,
&zwlr_screencopy_manager_v1_interface, version, id);
if (resource == NULL) {
wl_client_post_no_memory(client);
return;
goto failure;
}
wl_resource_set_implementation(resource, &manager_impl, manager,
client->ref = 1;
client->manager = manager;
wl_list_init(&client->damages);
wl_resource_set_implementation(resource, &manager_impl, client,
manager_handle_resource_destroy);
wl_list_insert(&manager->resources, wl_resource_get_link(resource));
return;
failure:
free(client);
wl_client_post_no_memory(wl_client);
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {