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ext-image-capture-source-v1: add output source

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master
Simon Ser 11 months ago
parent e3460030e6
commit 145ad0ce46
3 changed files with 213 additions and 0 deletions
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14
include/wlr/types/wlr_ext_image_capture_source_v1.h
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@ -68,6 +68,17 @@ struct wlr_ext_image_capture_source_v1_cursor {
} events;
};
/**
* Interface exposing one screen capture source per output.
*/
struct wlr_ext_output_image_capture_source_manager_v1 {
struct wl_global *global;
// private state
struct wl_listener display_destroy;
};
/**
* Obtain a struct wlr_ext_image_capture_source_v1 from an ext_image_capture_source_v1
* resource.
@ -77,4 +88,7 @@ struct wlr_ext_image_capture_source_v1_cursor {
*/
struct wlr_ext_image_capture_source_v1 *wlr_ext_image_capture_source_v1_from_resource(struct wl_resource *resource);
struct wlr_ext_output_image_capture_source_manager_v1 *wlr_ext_output_image_capture_source_manager_v1_create(
struct wl_display *display, uint32_t version);
#endif

198
types/ext_image_capture_source_v1/output.c
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@ -0,0 +1,198 @@
#include <assert.h>
#include <stdlib.h>
#include <wlr/interfaces/wlr_ext_image_capture_source_v1.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/types/wlr_ext_image_capture_source_v1.h>
#include <wlr/types/wlr_ext_image_copy_capture_v1.h>
#include <wlr/types/wlr_output.h>
#include <wlr/util/addon.h>
#include "render/wlr_renderer.h"
#include "ext-image-capture-source-v1-protocol.h"
#define OUTPUT_IMAGE_SOURCE_MANAGER_V1_VERSION 1
struct wlr_ext_output_image_capture_source_v1 {
struct wlr_ext_image_capture_source_v1 base;
struct wlr_addon addon;
struct wlr_output *output;
struct wl_listener output_commit;
};
struct wlr_ext_output_image_capture_source_v1_frame_event {
struct wlr_ext_image_capture_source_v1_frame_event base;
struct wlr_buffer *buffer;
struct timespec *when;
};
static void output_source_schedule_frame(struct wlr_ext_image_capture_source_v1 *base) {
struct wlr_ext_output_image_capture_source_v1 *source = wl_container_of(base, source, base);
wlr_output_update_needs_frame(source->output);
}
static void output_source_copy_frame(struct wlr_ext_image_capture_source_v1 *base,
struct wlr_ext_image_copy_capture_frame_v1 *frame,
struct wlr_ext_image_capture_source_v1_frame_event *base_event) {
struct wlr_ext_output_image_capture_source_v1 *source = wl_container_of(base, source, base);
struct wlr_ext_output_image_capture_source_v1_frame_event *event =
wl_container_of(base_event, event, base);
if (wlr_ext_image_copy_capture_frame_v1_copy_buffer(frame,
event->buffer, source->output->renderer)) {
wlr_ext_image_copy_capture_frame_v1_ready(frame,
source->output->transform, event->when);
}
}
static const struct wlr_ext_image_capture_source_v1_interface output_source_impl = {
.schedule_frame = output_source_schedule_frame,
.copy_frame = output_source_copy_frame,
};
static void source_update_buffer_constraints(struct wlr_ext_output_image_capture_source_v1 *source) {
struct wlr_output *output = source->output;
if (!wlr_output_configure_primary_swapchain(output, NULL, &output->swapchain)) {
return;
}
wlr_ext_image_capture_source_v1_set_constraints_from_swapchain(&source->base,
output->swapchain, output->renderer);
}
static void source_handle_output_commit(struct wl_listener *listener,
void *data) {
struct wlr_ext_output_image_capture_source_v1 *source = wl_container_of(listener, source, output_commit);
struct wlr_output_event_commit *event = data;
if (event->state->committed & (WLR_OUTPUT_STATE_MODE | WLR_OUTPUT_STATE_RENDER_FORMAT)) {
source_update_buffer_constraints(source);
}
if (event->state->committed & WLR_OUTPUT_STATE_BUFFER) {
struct wlr_buffer *buffer = event->state->buffer;
pixman_region32_t full_damage;
pixman_region32_init_rect(&full_damage, 0, 0, buffer->width, buffer->height);
const pixman_region32_t *damage;
if (event->state->committed & WLR_OUTPUT_STATE_DAMAGE) {
damage = &event->state->damage;
} else {
damage = &full_damage;
}
struct wlr_ext_output_image_capture_source_v1_frame_event frame_event = {
.base = {
.damage = damage,
},
.buffer = buffer,
.when = event->when, // TODO: predict next presentation time instead
};
wl_signal_emit_mutable(&source->base.events.frame, &frame_event);
pixman_region32_fini(&full_damage);
}
}
static void output_addon_destroy(struct wlr_addon *addon) {
struct wlr_ext_output_image_capture_source_v1 *source = wl_container_of(addon, source, addon);
wlr_ext_image_capture_source_v1_finish(&source->base);
wl_list_remove(&source->output_commit.link);
wlr_addon_finish(&source->addon);
free(source);
}
static const struct wlr_addon_interface output_addon_impl = {
.name = "wlr_ext_output_image_capture_source_v1",
.destroy = output_addon_destroy,
};
static void output_manager_handle_create_source(struct wl_client *client,
struct wl_resource *manager_resource, uint32_t new_id,
struct wl_resource *output_resource) {
struct wlr_output *output = wlr_output_from_resource(output_resource);
if (output == NULL) {
wlr_ext_image_capture_source_v1_create_resource(NULL, client, new_id);
return;
}
struct wlr_ext_output_image_capture_source_v1 *source;
struct wlr_addon *addon = wlr_addon_find(&output->addons, NULL, &output_addon_impl);
if (addon != NULL) {
source = wl_container_of(addon, source, addon);
} else {
source = calloc(1, sizeof(*source));
if (source == NULL) {
wl_resource_post_no_memory(manager_resource);
return;
}
wlr_ext_image_capture_source_v1_init(&source->base, &output_source_impl);
wlr_addon_init(&source->addon, &output->addons, NULL, &output_addon_impl);
source->output = output;
source->output_commit.notify = source_handle_output_commit;
wl_signal_add(&output->events.commit, &source->output_commit);
source_update_buffer_constraints(source);
}
if (!wlr_ext_image_capture_source_v1_create_resource(&source->base, client, new_id)) {
return;
}
}
static void output_manager_handle_destroy(struct wl_client *client,
struct wl_resource *manager_resource) {
wl_resource_destroy(manager_resource);
}
static const struct ext_output_image_capture_source_manager_v1_interface output_manager_impl = {
.create_source = output_manager_handle_create_source,
.destroy = output_manager_handle_destroy,
};
static void output_manager_bind(struct wl_client *client, void *data,
uint32_t version, uint32_t id) {
struct wlr_ext_output_image_capture_source_manager_v1 *manager = data;
struct wl_resource *resource = wl_resource_create(client,
&ext_output_image_capture_source_manager_v1_interface, version, id);
if (!resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(resource, &output_manager_impl, manager, NULL);
}
static void output_manager_handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_ext_output_image_capture_source_manager_v1 *manager =
wl_container_of(listener, manager, display_destroy);
wl_list_remove(&manager->display_destroy.link);
wl_global_destroy(manager->global);
free(manager);
}
struct wlr_ext_output_image_capture_source_manager_v1 *wlr_ext_output_image_capture_source_manager_v1_create(
struct wl_display *display, uint32_t version) {
assert(version <= OUTPUT_IMAGE_SOURCE_MANAGER_V1_VERSION);
struct wlr_ext_output_image_capture_source_manager_v1 *manager = calloc(1, sizeof(*manager));
if (manager == NULL) {
return NULL;
}
manager->global = wl_global_create(display,
&ext_output_image_capture_source_manager_v1_interface, version, manager, output_manager_bind);
if (manager->global == NULL) {
free(manager);
return NULL;
}
manager->display_destroy.notify = output_manager_handle_display_destroy;
wl_display_add_destroy_listener(display, &manager->display_destroy);
return manager;
}

1
types/meson.build
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@ -4,6 +4,7 @@ wlr_files += files(
'data_device/wlr_data_source.c',
'data_device/wlr_drag.c',
'ext_image_capture_source_v1/base.c',
'ext_image_capture_source_v1/output.c',
'output/cursor.c',
'output/output.c',
'output/render.c',

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