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ext-image-capture-source-v1: add base interface

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master
Simon Ser 11 months ago
parent 234d31f138
commit 4035f23792
5 changed files with 160 additions and 1 deletions
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30
include/wlr/interfaces/wlr_ext_image_capture_source_v1.h
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@ -0,0 +1,30 @@
/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_INTERFACES_WLR_EXT_IMAGE_CAPTURE_SOURCE_V1_H
#define WLR_INTERFACES_WLR_EXT_IMAGE_CAPTURE_SOURCE_V1_H
#include <wayland-server-core.h>
#include <wlr/types/wlr_ext_image_capture_source_v1.h>
struct wlr_ext_image_copy_capture_frame_v1;
struct wlr_ext_image_capture_source_v1_interface {
void (*schedule_frame)(struct wlr_ext_image_capture_source_v1 *source);
void (*copy_frame)(struct wlr_ext_image_capture_source_v1 *source,
struct wlr_ext_image_copy_capture_frame_v1 *dst_frame,
struct wlr_ext_image_capture_source_v1_frame_event *frame_event);
};
void wlr_ext_image_capture_source_v1_init(struct wlr_ext_image_capture_source_v1 *source,
const struct wlr_ext_image_capture_source_v1_interface *impl);
void wlr_ext_image_capture_source_v1_finish(struct wlr_ext_image_capture_source_v1 *source);
bool wlr_ext_image_capture_source_v1_create_resource(struct wlr_ext_image_capture_source_v1 *source,
struct wl_client *client, uint32_t new_id);
#endif

60
include/wlr/types/wlr_ext_image_capture_source_v1.h
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/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_TYPES_WLR_EXT_IMAGE_CAPTURE_SOURCE_V1_H
#define WLR_TYPES_WLR_EXT_IMAGE_CAPTURE_SOURCE_V1_H
#include <pixman.h>
#include <wayland-server-core.h>
#include <wlr/render/drm_format_set.h>
/**
* A screen capture source.
*
* When the size, device or formats change, the constraints_update event is
* emitted.
*
* The device and formats advertised are suitable for copying into a
* struct wlr_buffer.
*/
struct wlr_ext_image_capture_source_v1 {
const struct wlr_ext_image_capture_source_v1_interface *impl;
struct wl_list resources; // wl_resource_get_link()
uint32_t width, height;
uint32_t *shm_formats;
size_t shm_formats_len;
dev_t dmabuf_device;
struct wlr_drm_format_set dmabuf_formats;
struct {
struct wl_signal constraints_update;
struct wl_signal frame; // struct wlr_ext_image_capture_source_v1_frame_event
struct wl_signal destroy;
} events;
};
/**
* Event indicating that the source has produced a new frame.
*/
struct wlr_ext_image_capture_source_v1_frame_event {
const pixman_region32_t *damage;
};
/**
* Obtain a struct wlr_ext_image_capture_source_v1 from an ext_image_capture_source_v1
* resource.
*
* Asserts that the resource has the correct type. Returns NULL if the resource
* is inert.
*/
struct wlr_ext_image_capture_source_v1 *wlr_ext_image_capture_source_v1_from_resource(struct wl_resource *resource);
#endif

3
protocol/meson.build
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@ -1,5 +1,5 @@
wayland_protos = dependency('wayland-protocols',
version: '>=1.35',
version: '>=1.37',
fallback: 'wayland-protocols',
default_options: ['tests=false'],
)
@ -26,6 +26,7 @@ protocols = {
'drm-lease-v1': wl_protocol_dir / 'staging/drm-lease/drm-lease-v1.xml',
'ext-foreign-toplevel-list-v1': wl_protocol_dir / 'staging/ext-foreign-toplevel-list/ext-foreign-toplevel-list-v1.xml',
'ext-idle-notify-v1': wl_protocol_dir / 'staging/ext-idle-notify/ext-idle-notify-v1.xml',
'ext-image-capture-source-v1': wl_protocol_dir / 'staging/ext-image-capture-source/ext-image-capture-source-v1.xml',
'ext-session-lock-v1': wl_protocol_dir / 'staging/ext-session-lock/ext-session-lock-v1.xml',
'fractional-scale-v1': wl_protocol_dir / 'staging/fractional-scale/fractional-scale-v1.xml',
'linux-drm-syncobj-v1': wl_protocol_dir / 'staging/linux-drm-syncobj/linux-drm-syncobj-v1.xml',

67
types/ext_image_capture_source_v1/base.c
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@ -0,0 +1,67 @@
#include <assert.h>
#include <stdlib.h>
#include <wlr/interfaces/wlr_ext_image_capture_source_v1.h>
#include <wlr/types/wlr_ext_image_capture_source_v1.h>
#include "ext-image-capture-source-v1-protocol.h"
static void source_handle_destroy(struct wl_client *client,
struct wl_resource *source_resource) {
wl_resource_destroy(source_resource);
}
static const struct ext_image_capture_source_v1_interface source_impl = {
.destroy = source_handle_destroy,
};
struct wlr_ext_image_capture_source_v1 *wlr_ext_image_capture_source_v1_from_resource(struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&ext_image_capture_source_v1_interface, &source_impl));
return wl_resource_get_user_data(resource);
}
static void source_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
void wlr_ext_image_capture_source_v1_init(struct wlr_ext_image_capture_source_v1 *source,
const struct wlr_ext_image_capture_source_v1_interface *impl) {
*source = (struct wlr_ext_image_capture_source_v1){
.impl = impl,
};
wl_list_init(&source->resources);
wl_signal_init(&source->events.destroy);
wl_signal_init(&source->events.constraints_update);
wl_signal_init(&source->events.frame);
}
void wlr_ext_image_capture_source_v1_finish(struct wlr_ext_image_capture_source_v1 *source) {
wl_signal_emit_mutable(&source->events.destroy, NULL);
struct wl_resource *resource, *resource_tmp;
wl_resource_for_each_safe(resource, resource_tmp, &source->resources) {
wl_resource_set_user_data(resource, NULL);
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
}
free(source->shm_formats);
wlr_drm_format_set_finish(&source->dmabuf_formats);
}
bool wlr_ext_image_capture_source_v1_create_resource(struct wlr_ext_image_capture_source_v1 *source,
struct wl_client *client, uint32_t new_id) {
struct wl_resource *resource = wl_resource_create(client,
&ext_image_capture_source_v1_interface, 1, new_id);
if (resource == NULL) {
wl_client_post_no_memory(client);
return false;
}
wl_resource_set_implementation(resource, &source_impl, source,
source_handle_resource_destroy);
if (source != NULL) {
wl_list_insert(&source->resources, wl_resource_get_link(resource));
} else {
wl_list_init(wl_resource_get_link(resource));
}
return true;
}

1
types/meson.build
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@ -3,6 +3,7 @@ wlr_files += files(
'data_device/wlr_data_offer.c',
'data_device/wlr_data_source.c',
'data_device/wlr_drag.c',
'ext_image_capture_source_v1/base.c',
'output/cursor.c',
'output/output.c',
'output/render.c',

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