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authorWataru Mizuno <wmizuno@jp.adit-jv.com>2018-07-09 18:14:05 +0900
committerJan-Simon Moeller <jsmoeller@linuxfoundation.org>2018-07-27 10:51:25 +0000
commit18aa25385bcfc4c686f4700de2b2dd9fa9b38ee9 (patch)
tree80f21089c49102054e4dde84f008564793d0e07d /waltham-transmitter/transmitter-plugin/plugin.c
parent067686a3a5865511c5c59738c6324b29c87d9d3a (diff)
transmitter: initial commit for waltham-transmitter
The waltham-transmitter is the plugin of weston to enable client applications to share surface between multiple domains. Change-Id: I691410f5b6e74fa981ae53201b728810373185a2 Signed-off-by: Wataru Mizuno <wmizuno@jp.adit-jv.com>
Diffstat (limited to 'waltham-transmitter/transmitter-plugin/plugin.c')
-rw-r--r--waltham-transmitter/transmitter-plugin/plugin.c940
1 files changed, 940 insertions, 0 deletions
diff --git a/waltham-transmitter/transmitter-plugin/plugin.c b/waltham-transmitter/transmitter-plugin/plugin.c
new file mode 100644
index 0000000..f643bd8
--- /dev/null
+++ b/waltham-transmitter/transmitter-plugin/plugin.c
@@ -0,0 +1,940 @@
+/*
+ * Copyright (C) 2017 Advanced Driver Information Technology Joint Venture GmbH
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include <linux/input.h>
+
+#include "compositor.h"
+
+#include "weston.h"
+#include "plugin.h"
+#include "transmitter_api.h"
+#include "plugin-registry.h"
+#include "ivi-layout-export.h"
+
+/* waltham */
+#include <errno.h>
+#include <sys/epoll.h>
+#include <sys/timerfd.h>
+#include <waltham-object.h>
+#include <waltham-client.h>
+#include <waltham-connection.h>
+
+#define MAX_EPOLL_WATCHES 2
+#define ESTABLISH_CONNECTION_PERIOD 2000
+#define RETRY_CONNECTION_PERIOD 5000
+
+/* XXX: all functions and variables with a name, and things marked with a
+ * comment, containing the word "fake" are mockups that need to be
+ * removed from the final implementation.
+ */
+
+/** Send configure event through ivi-shell.
+ *
+ * \param txs The Transmitter surface.
+ * \param width Suggestion for surface width.
+ * \param height Suggestion for surface height.
+ *
+ * When the networking code receives a ivi_surface.configure event, it calls
+ * this function to relay it to the application.
+ *
+ * \c txs cannot be a zombie, because transmitter_surface_zombify() must
+ * tear down the network link, so a zombie cannot receive events.
+ */
+void
+transmitter_surface_ivi_resize(struct weston_transmitter_surface *txs,
+ int32_t width, int32_t height)
+{
+ assert(txs->resize_handler);
+ if (!txs->resize_handler)
+ return;
+
+ assert(txs->surface);
+ if (!txs->surface)
+ return;
+
+ txs->resize_handler(txs->resize_handler_data, width, height);
+}
+
+static void
+transmitter_surface_configure(struct weston_transmitter_surface *txs,
+ int32_t dx, int32_t dy)
+{
+ assert(txs->surface);
+ if (!txs->surface)
+ return;
+
+ txs->attach_dx += dx;
+ txs->attach_dy += dy;
+}
+
+static void
+buffer_send_complete(struct wthp_buffer *b, uint32_t serial)
+{
+ if (b)
+ wthp_buffer_destroy(b);
+}
+
+static const struct wthp_buffer_listener buffer_listener = {
+ buffer_send_complete
+};
+
+static void
+transmitter_surface_gather_state(struct weston_transmitter_surface *txs)
+{
+ struct weston_transmitter_remote *remote = txs->remote;
+ struct waltham_display *dpy = remote->display;
+ int ret;
+
+ if(!dpy->running) {
+ if(remote->status != WESTON_TRANSMITTER_CONNECTION_DISCONNECTED) {
+ remote->status = WESTON_TRANSMITTER_CONNECTION_DISCONNECTED;
+ wth_connection_destroy(remote->display->connection);
+ wl_event_source_remove(remote->source);
+ wl_event_source_timer_update(remote->retry_timer, 1);
+ }
+ }
+ else {
+ /* TODO: transmit surface state to remote */
+ /* The buffer must be transmitted to remote side */
+
+ /* waltham */
+ struct weston_surface *surf = txs->surface;
+ struct weston_compositor *comp = surf->compositor;
+ int32_t stride, data_sz, width, height;
+ void *data;
+
+ width = 1;
+ height = 1;
+ stride = width * (PIXMAN_FORMAT_BPP(comp->read_format) / 8);
+
+ data = malloc(stride * height);
+ data_sz = stride * height;
+
+ /* fake sending buffer */
+ txs->wthp_buf = wthp_blob_factory_create_buffer(remote->display->blob_factory,
+ data_sz,
+ data,
+ surf->width,
+ surf->height,
+ stride,
+ PIXMAN_FORMAT_BPP(comp->read_format));
+
+ wthp_buffer_set_listener(txs->wthp_buf, &buffer_listener, txs);
+
+ wthp_surface_attach(txs->wthp_surf, txs->wthp_buf, txs->attach_dx, txs->attach_dy);
+ wthp_surface_damage(txs->wthp_surf, txs->attach_dx, txs->attach_dy, surf->width, surf->height);
+ wthp_surface_commit(txs->wthp_surf);
+
+ wth_connection_flush(remote->display->connection);
+ txs->attach_dx = 0;
+ txs->attach_dy = 0;
+ }
+}
+
+/** Mark the weston_transmitter_surface dead.
+ *
+ * Stop all remoting actions on this surface.
+ *
+ * Still keeps the pointer stored by a shell valid, so it can be freed later.
+ */
+static void
+transmitter_surface_zombify(struct weston_transmitter_surface *txs)
+{
+ struct weston_transmitter_remote *remote;
+ /* may be called multiple times */
+ if (!txs->surface)
+ return;
+
+ wl_signal_emit(&txs->destroy_signal, txs);
+
+ wl_list_remove(&txs->surface_destroy_listener.link);
+ txs->surface = NULL;
+
+ wl_list_remove(&txs->sync_output_destroy_listener.link);
+
+ remote = txs->remote;
+ if (!remote->display->compositor)
+ weston_log("remote->compositor is NULL\n");
+ if (txs->wthp_surf)
+ wthp_surface_destroy(txs->wthp_surf);
+ if (txs->wthp_ivi_surface)
+ wthp_ivi_surface_destroy(txs->wthp_ivi_surface);
+
+ /* In case called from destroy_transmitter() */
+ txs->remote = NULL;
+}
+
+static void
+transmitter_surface_destroy(struct weston_transmitter_surface *txs)
+{
+ transmitter_surface_zombify(txs);
+
+ wl_list_remove(&txs->link);
+ free(txs);
+}
+
+/** weston_surface destroy signal handler */
+static void
+transmitter_surface_destroyed(struct wl_listener *listener, void *data)
+{
+ struct weston_transmitter_surface *txs =
+ wl_container_of(listener, txs, surface_destroy_listener);
+
+ assert(data == txs->surface);
+
+ transmitter_surface_zombify(txs);
+}
+
+static void
+sync_output_destroy_handler(struct wl_listener *listener, void *data)
+{
+ struct weston_transmitter_surface *txs;
+
+ txs = wl_container_of(listener, txs, sync_output_destroy_listener);
+
+ wl_list_remove(&txs->sync_output_destroy_listener.link);
+ wl_list_init(&txs->sync_output_destroy_listener.link);
+
+ weston_surface_force_output(txs->surface, NULL);
+}
+
+static void
+transmitter_surface_set_ivi_id(struct weston_transmitter_surface *txs)
+{
+ struct weston_transmitter_remote *remote = txs->remote;
+ struct waltham_display *dpy = remote->display;
+ struct weston_surface *ws;
+ struct ivi_layout_surface **pp_surface = NULL;
+ struct ivi_layout_surface *ivi_surf = NULL;
+ int32_t surface_length = 0;
+ int32_t ret = 0;
+ int32_t i = 0;
+
+ ret = txs->lyt->get_surfaces(&surface_length, &pp_surface);
+ if(!ret)
+ weston_log("No ivi_surface\n");
+
+ ws = txs->surface;
+
+ for(i = 0; i < surface_length; i++) {
+ ivi_surf = pp_surface[i];
+ if (ivi_surf->surface == ws) {
+ assert(txs->surface);
+ if (!txs->surface)
+ return;
+ if(!dpy)
+ weston_log("no content in waltham_display\n");
+ if(!dpy->compositor)
+ weston_log("no content in compositor object\n");
+ if(!dpy->seat)
+ weston_log("no content in seat object\n");
+ if(!dpy->application)
+ weston_log("no content in ivi-application object\n");
+
+ txs->wthp_ivi_surface = wthp_ivi_application_surface_create
+ (dpy->application, ivi_surf->id_surface, txs->wthp_surf);
+ weston_log("surface ID %d\n", ivi_surf->id_surface);
+ if(!txs->wthp_ivi_surface){
+ weston_log("Failed to create txs->ivi_surf\n");
+ }
+ }
+ }
+ free(pp_surface);
+ pp_surface = NULL;
+}
+
+static struct weston_transmitter_surface *
+transmitter_surface_push_to_remote(struct weston_surface *ws,
+ struct weston_transmitter_remote *remote,
+ struct wl_listener *stream_status)
+{
+ struct weston_transmitter *txr = remote->transmitter;
+ struct weston_transmitter_surface *txs;
+ bool found = false;
+
+ if (remote->status != WESTON_TRANSMITTER_CONNECTION_READY)
+ {
+ return NULL;
+ }
+
+ wl_list_for_each(txs, &remote->surface_list, link) {
+ if (txs->surface == ws) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ txs = NULL;
+ txs = zalloc(sizeof (*txs));
+ if (!txs)
+ return NULL;
+
+ txs->remote = remote;
+ wl_signal_init(&txs->destroy_signal);
+ wl_list_insert(&remote->surface_list, &txs->link);
+
+ txs->status = WESTON_TRANSMITTER_STREAM_INITIALIZING;
+ wl_signal_init(&txs->stream_status_signal);
+ if (stream_status)
+ wl_signal_add(&txs->stream_status_signal, stream_status);
+
+ txs->surface = ws;
+ txs->surface_destroy_listener.notify = transmitter_surface_destroyed;
+ wl_signal_add(&ws->destroy_signal, &txs->surface_destroy_listener);
+
+ wl_list_init(&txs->sync_output_destroy_listener.link);
+
+ wl_list_init(&txs->frame_callback_list);
+ wl_list_init(&txs->feedback_list);
+
+ txs->lyt = weston_plugin_api_get(txr->compositor,
+ IVI_LAYOUT_API_NAME, sizeof(txs->lyt));
+ }
+
+ /* TODO: create the content stream connection... */
+ if (!remote->display->compositor)
+ weston_log("remote->compositor is NULL\n");
+ if (!txs->wthp_surf) {
+ weston_log("txs->wthp_surf is NULL\n");
+ txs->wthp_surf = wthp_compositor_create_surface(remote->display->compositor);
+ transmitter_surface_set_ivi_id(txs);
+ }
+
+ return txs;
+}
+
+static enum weston_transmitter_stream_status
+transmitter_surface_get_stream_status(struct weston_transmitter_surface *txs)
+{
+ return txs->status;
+}
+
+/* waltham */
+/* The server advertises a global interface.
+ * We can store the ad for later and/or bind to it immediately
+ * if we want to.
+ * We also need to keep track of the globals we bind to, so that
+ * global_remove can be handled properly (not implemented).
+ */
+static void
+registry_handle_global(struct wthp_registry *registry,
+ uint32_t name,
+ const char *interface,
+ uint32_t version)
+{
+ struct waltham_display *dpy = wth_object_get_user_data((struct wth_object *)registry);
+
+ if (strcmp(interface, "wthp_compositor") == 0) {
+ assert(!dpy->compositor);
+ dpy->compositor = (struct wthp_compositor *)wthp_registry_bind(registry, name, interface, 1);
+ /* has no events to handle */
+ } else if (strcmp(interface, "wthp_blob_factory") == 0) {
+ assert(!dpy->blob_factory);
+ dpy->blob_factory = (struct wthp_blob_factory *)wthp_registry_bind(registry, name, interface, 1);
+ /* has no events to handle */
+ } else if (strcmp(interface, "wthp_seat") == 0) {
+ assert(!dpy->seat);
+ dpy->seat = (struct wthp_seat *)wthp_registry_bind(registry, name, interface, 1);
+ wthp_seat_set_listener(dpy->seat, &seat_listener, dpy);
+ } else if (strcmp(interface, "wthp_ivi_application") == 0) {
+ assert(!dpy->application);
+ dpy->application = (struct wthp_ivi_application *)wthp_registry_bind(registry, name, interface, 1);
+ }
+}
+
+/* notify connection ready */
+static void
+conn_ready_notify(struct wl_listener *l, void *data)
+{
+ struct weston_transmitter_remote *remote =
+ wl_container_of(l, remote, establish_listener);
+ struct weston_transmitter_output_info info = {
+ WL_OUTPUT_SUBPIXEL_NONE,
+ WL_OUTPUT_TRANSFORM_NORMAL,
+ 1,
+ 0, 0,
+ 300, 200,
+ strdup(remote->model),
+ {
+ WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED,
+ 800, 600,
+ 51519,
+ { NULL, NULL }
+ }
+ };
+ if(remote->width != 0) {
+ if(remote->height != 0) {
+ info.mode.width = remote->width;
+ info.mode.height = remote->height;
+ }
+ }
+ /* Outputs and seats are dynamic, do not guarantee they are all
+ * present when signalling connection status.
+ */
+ transmitter_remote_create_output(remote, &info);
+ transmitter_remote_create_seat(remote);
+}
+
+/* waltham */
+/* The server removed a global.
+ * We should destroy everything we created through that global,
+ * and destroy the objects we created by binding to it.
+ * The identification happens by global's name, so we need to keep
+ * track what names we bound.
+ * (not implemented)
+ */
+static void
+registry_handle_global_remove(struct wthp_registry *wthp_registry,
+ uint32_t name)
+{
+ if (wthp_registry)
+ wthp_registry_free(wthp_registry);
+}
+
+static const struct wthp_registry_listener registry_listener = {
+ registry_handle_global,
+ registry_handle_global_remove
+};
+
+static void
+connection_handle_data(struct watch *w, uint32_t events)
+{
+ struct waltham_display *dpy = wl_container_of(w, dpy, conn_watch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ int ret;
+
+
+ if (!dpy->running) {
+ weston_log("This server is not running yet. %s:%s\n", remote->addr, remote->port);
+ return;
+ }
+
+ if (events & EPOLLERR) {
+ weston_log("Connection errored out.\n");
+ dpy->running = false;
+ remote->status = WESTON_TRANSMITTER_CONNECTION_INITIALIZING;
+ return;
+ }
+
+ if (events & EPOLLOUT) {
+ /* Flush out again. If the flush completes, stop
+ * polling for writable as everything has been written.
+ */
+ ret = wth_connection_flush(dpy->connection);
+ }
+
+ if (events & EPOLLIN) {
+ /* Do not ignore EPROTO */
+ ret = wth_connection_read(dpy->connection);
+
+ if (ret < 0) {
+ weston_log("Connection read error %s:%s\n", remote->addr, remote->port);
+ perror("Connection read error\n");
+ dpy->running = false;
+ remote->status = WESTON_TRANSMITTER_CONNECTION_INITIALIZING;
+ perror("EPOLL_CTL_DEL\n");
+
+ return;
+ }
+ }
+
+ if (events & EPOLLHUP) {
+ weston_log("Connection hung up.\n");
+ dpy->running = false;
+ remote->status = WESTON_TRANSMITTER_CONNECTION_INITIALIZING;
+
+ return;
+ }
+}
+
+static void
+waltham_mainloop(int fd, uint32_t mask, void *data)
+{
+ struct weston_transmitter_remote *remote = data;
+ struct watch *w;
+ int ret;
+ int running_display;
+ running_display = 0;
+
+ struct waltham_display *dpy = remote->display;
+ w = &dpy->conn_watch;
+ if (!dpy)
+ goto not_running;
+
+ if (!dpy->connection)
+ dpy->running = false;
+
+ if (!dpy->running)
+ goto not_running;
+
+ running_display++;
+ /* Dispatch queued events. */
+ ret = wth_connection_dispatch(dpy->connection);
+ if (ret < 0) {
+ dpy->running = false;
+ remote->status = WESTON_TRANSMITTER_CONNECTION_INITIALIZING;
+ }
+ if (!dpy->running)
+ goto not_running;
+
+ /* Run any application idle tasks at this point. */
+ /* (nothing to run so far) */
+
+ /* Flush out buffered requests. If the Waltham socket is
+ * full, poll it for writable too, and continue flushing then.
+ */
+ ret = wth_connection_flush(dpy->connection);
+
+ if (0 < running_display) {
+ /* Waltham events only read in the callback, not dispatched,
+ * if the Waltham socket signalled readable. If it signalled
+ * writable, flush more. See connection_handle_data().
+ */
+ w->cb(w, mask);
+ }
+
+not_running:
+ ;
+}
+
+static int
+waltham_client_init(struct waltham_display *dpy)
+{
+ if (!dpy)
+ return -1;
+ /*
+ * get server_address from controller (adrress is set to weston.ini)
+ */
+ dpy->connection = wth_connect_to_server(dpy->remote->addr, dpy->remote->port);
+ if(!dpy->connection) {
+ return -2;
+ }
+ else {
+ dpy->remote->status = WESTON_TRANSMITTER_CONNECTION_READY;
+ wl_signal_emit(&dpy->remote->connection_status_signal, dpy->remote);
+ }
+
+ dpy->conn_watch.display = dpy;
+ dpy->conn_watch.cb = connection_handle_data;
+ dpy->conn_watch.fd = wth_connection_get_fd(dpy->connection);
+ dpy->remote->source = wl_event_loop_add_fd(dpy->remote->transmitter->loop,
+ dpy->conn_watch.fd,
+ WL_EVENT_READABLE,
+ waltham_mainloop, dpy->remote);
+
+ dpy->display = wth_connection_get_display(dpy->connection);
+ /* wth_display_set_listener() is already done by waltham, as
+ * all the events are just control messaging.
+ */
+
+ /* Create a registry so that we will get advertisements of the
+ * interfaces implemented by the server.
+ */
+ dpy->registry = wth_display_get_registry(dpy->display);
+ wthp_registry_set_listener(dpy->registry, &registry_listener, dpy);
+
+ /* Roundtrip ensures all globals' ads have been received. */
+ if (wth_connection_roundtrip(dpy->connection) < 0) {
+ weston_log("Roundtrip failed.\n");
+ return -1;
+ }
+
+ if (!dpy->compositor) {
+ weston_log("Did not find wthp_compositor, quitting.\n");
+ return -1;
+ }
+
+ dpy->running = true;
+
+ return 0;
+}
+
+static int
+establish_timer_handler(void *data)
+{
+ struct weston_transmitter_remote *remote = data;
+ int ret;
+
+ ret = waltham_client_init(remote->display);
+ if(ret == -2) {
+ wl_event_source_timer_update(remote->establish_timer,
+ ESTABLISH_CONNECTION_PERIOD);
+ return 0;
+ }
+ remote->status = WESTON_TRANSMITTER_CONNECTION_READY;
+ wl_signal_emit(&remote->connection_status_signal, remote);
+ return 0;
+}
+
+static void
+init_globals(struct waltham_display *dpy)
+{
+ dpy->compositor = NULL;
+ dpy->blob_factory = NULL;
+ dpy->seat = NULL;
+ dpy->application = NULL;
+ dpy->pointer = NULL;
+ dpy->keyboard = NULL;
+ dpy->touch = NULL;
+}
+
+static void
+disconnect_surface(struct weston_transmitter_remote *remote)
+{
+ struct weston_transmitter_surface *txs;
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ free(txs->wthp_ivi_surface);
+ txs->wthp_ivi_surface = NULL;
+ free(txs->wthp_surf);
+ txs->wthp_surf = NULL;
+ }
+}
+
+static int
+retry_timer_handler(void *data)
+{
+ struct weston_transmitter_remote *remote = data;
+ struct waltham_display *dpy = remote->display;
+
+ if(!dpy->running)
+ {
+ registry_handle_global_remove(dpy->registry, 1);
+ init_globals(dpy);
+ disconnect_surface(remote);
+ wl_event_source_timer_update(remote->establish_timer,
+ ESTABLISH_CONNECTION_PERIOD);
+
+ return 0;
+ }
+ else
+ wl_event_source_timer_update(remote->retry_timer,
+ RETRY_CONNECTION_PERIOD);
+ return 0;
+}
+
+static struct weston_transmitter_remote *
+transmitter_connect_to_remote(struct weston_transmitter *txr)
+{
+ struct weston_transmitter_remote *remote;
+ struct wl_event_loop *loop_est, *loop_retry;
+ int ret;
+
+ wl_list_for_each_reverse(remote, &txr->remote_list, link) {
+ /* XXX: actually start connecting */
+ /* waltham */
+ remote->display = zalloc(sizeof *remote->display);
+ if (!remote->display)
+ return NULL;
+ remote->display->remote = remote;
+ /* set connection establish timer */
+ loop_est = wl_display_get_event_loop(txr->compositor->wl_display);
+ remote->establish_timer =
+ wl_event_loop_add_timer(loop_est, establish_timer_handler, remote);
+ wl_event_source_timer_update(remote->establish_timer, 1);
+ /* set connection retry timer */
+ loop_retry = wl_display_get_event_loop(txr->compositor->wl_display);
+ remote->retry_timer =
+ wl_event_loop_add_timer(loop_retry, retry_timer_handler, remote);
+ if (ret < 0) {
+ weston_log("Fatal: Transmitter waltham connecting failed.\n");
+ return NULL;
+ }
+ wl_signal_emit(&remote->conn_establish_signal, NULL);
+ }
+
+ return remote;
+}
+
+static enum weston_transmitter_connection_status
+transmitter_remote_get_status(struct weston_transmitter_remote *remote)
+{
+ return remote->status;
+}
+
+static void
+transmitter_remote_destroy(struct weston_transmitter_remote *remote)
+{
+ struct weston_transmitter_surface *txs;
+ struct weston_transmitter_output *output, *otmp;
+ struct weston_transmitter_seat *seat, *stmp;
+
+ /* Do not emit connection_status_signal. */
+
+ /*
+ * Must not touch remote->transmitter as it may be stale:
+ * the desctruction order between the shell and Transmitter is
+ * undefined.
+ */
+
+ if (!wl_list_empty(&remote->surface_list))
+ weston_log("Transmitter warning: surfaces remain in %s.\n",
+ __func__);
+ wl_list_for_each(txs, &remote->surface_list, link)
+ txs->remote = NULL;
+ wl_list_remove(&remote->surface_list);
+
+ wl_list_for_each_safe(seat, stmp, &remote->seat_list, link)
+ transmitter_seat_destroy(seat);
+
+ wl_list_for_each_safe(output, otmp, &remote->output_list, link)
+ transmitter_output_destroy(output);
+
+ free(remote->addr);
+ wl_list_remove(&remote->link);
+
+ wl_event_source_remove(remote->source);
+
+ free(remote);
+}
+
+/** Transmitter is destroyed on compositor shutdown. */
+static void
+transmitter_compositor_destroyed(struct wl_listener *listener, void *data)
+{
+ struct weston_transmitter_remote *remote;
+ struct weston_transmitter_surface *txs;
+ struct weston_transmitter *txr =
+ wl_container_of(listener, txr, compositor_destroy_listener);
+
+ assert(data == txr->compositor);
+
+ /* may be called before or after shell cleans up */
+ wl_list_for_each(remote, &txr->remote_list, link) {
+ wl_list_for_each(txs, &remote->surface_list, link) {
+ transmitter_surface_zombify(txs);
+ }
+ }
+
+ /*
+ * Remove the head in case the list is not empty, to avoid
+ * transmitter_remote_destroy() accessing freed memory if the shell
+ * cleans up after Transmitter.
+ */
+ wl_list_remove(&txr->remote_list);
+
+ free(txr);
+}
+
+static struct weston_transmitter *
+transmitter_get(struct weston_compositor *compositor)
+{
+ struct wl_listener *listener;
+ struct weston_transmitter *txr;
+
+ listener = wl_signal_get(&compositor->destroy_signal,
+ transmitter_compositor_destroyed);
+ if (!listener)
+ return NULL;
+
+ txr = wl_container_of(listener, txr, compositor_destroy_listener);
+ assert(compositor == txr->compositor);
+
+ return txr;
+}
+
+static void
+transmitter_register_connection_status(struct weston_transmitter *txr,
+ struct wl_listener *connected_listener)
+{
+ wl_signal_add(&txr->connected_signal, connected_listener);
+}
+
+static struct weston_surface *
+transmitter_get_weston_surface(struct weston_transmitter_surface *txs)
+{
+ return txs->surface;
+}
+
+static const struct weston_transmitter_api transmitter_api_impl = {
+ transmitter_get,
+ transmitter_connect_to_remote,
+ transmitter_remote_get_status,
+ transmitter_remote_destroy,
+ transmitter_surface_push_to_remote,
+ transmitter_surface_get_stream_status,
+ transmitter_surface_destroy,
+ transmitter_surface_configure,
+ transmitter_surface_gather_state,
+ transmitter_register_connection_status,
+ transmitter_get_weston_surface,
+};
+
+static void
+transmitter_surface_set_resize_callback(
+ struct weston_transmitter_surface *txs,
+ weston_transmitter_ivi_resize_handler_t cb,
+ void *data)
+{
+ txs->resize_handler = cb;
+ txs->resize_handler_data = data;
+}
+
+static const struct weston_transmitter_ivi_api transmitter_ivi_api_impl = {
+ transmitter_surface_set_resize_callback,
+};
+
+static int
+transmitter_create_remote(struct weston_transmitter *txr,
+ const char *model,
+ const char *addr,
+ const char *port,
+ const char *width,
+ const char *height)
+{
+ struct weston_transmitter_remote *remote;
+
+ remote = zalloc(sizeof (*remote));
+ if (!remote)
+ return -1;
+
+ remote->transmitter = txr;
+ wl_list_insert(&txr->remote_list, &remote->link);
+ remote->model = strdup(model);
+ remote->addr = strdup(addr);
+ remote->port = strdup(port);
+ remote->width = atoi(width);
+ remote->height = atoi(height);
+ remote->status = WESTON_TRANSMITTER_CONNECTION_INITIALIZING;
+ wl_signal_init(&remote->connection_status_signal);
+ wl_list_init(&remote->output_list);
+ wl_list_init(&remote->surface_list);
+ wl_list_init(&remote->seat_list);
+ wl_signal_init(&remote->conn_establish_signal);
+ remote->establish_listener.notify = conn_ready_notify;
+ wl_signal_add(&remote->conn_establish_signal, &remote->establish_listener);
+
+ return 0;
+}
+
+struct wet_compositor {
+ struct weston_config *config;
+ struct wet_output_config *parsed_options;
+ struct wl_listener pending_output_listener;
+ bool drm_use_current_mode;
+};
+
+static void
+transmitter_get_server_config(struct weston_transmitter *txr)
+{
+ struct wet_compositor *compositor =
+ (struct wet_compositor *)weston_compositor_get_user_data(txr->compositor);
+ struct weston_config *config = wet_get_config(txr->compositor);
+ struct weston_config_section *section;
+ const char *name = NULL;
+ char *model = NULL;
+ char *addr = NULL;
+ char *port = NULL;
+ char *width = '0';
+ char *height = '0';
+ int ret;
+
+ section = weston_config_get_section(config, "remote", NULL, NULL);
+
+ while (weston_config_next_section(config, &section, &name)) {
+ if (0 == strcmp(name, "remote-output")) {
+ if (0 != weston_config_section_get_string(section, "output-name",
+ &model, 0))
+ continue;
+
+ if (0 != weston_config_section_get_string(section, "server-address",
+ &addr, 0))
+ continue;
+
+ if (0 != weston_config_section_get_string(section, "port",
+ &port, 0))
+ continue;
+
+ if (0 != weston_config_section_get_string(section, "width",
+ &width, 0))
+ continue;
+
+ if (0 != weston_config_section_get_string(section, "height",
+ &height, 0))
+ continue;
+ ret = transmitter_create_remote(txr, model, addr,
+ port, width, height);
+ if (ret < 0) {
+ weston_log("Fatal: Transmitter create_remote failed.\n");
+ }
+ }
+ }
+}
+
+WL_EXPORT int
+wet_module_init(struct weston_compositor *compositor, int *argc, char *argv[])
+{
+ struct weston_transmitter *txr;
+ int ret;
+
+ txr = zalloc(sizeof *txr);
+ if (!txr){
+ weston_log("Transmitter disabled\n");
+ return -1;
+ }
+ wl_list_init(&txr->remote_list);
+
+ txr->compositor = compositor;
+ txr->compositor_destroy_listener.notify =
+ transmitter_compositor_destroyed;
+ wl_signal_add(&compositor->destroy_signal,
+ &txr->compositor_destroy_listener);
+
+ ret = weston_plugin_api_register(compositor,
+ WESTON_TRANSMITTER_API_NAME,
+ &transmitter_api_impl,
+ sizeof(transmitter_api_impl));
+ if (ret < 0) {
+ weston_log("Fatal: Transmitter API registration failed.\n");
+ goto fail;
+ }
+
+ ret = weston_plugin_api_register(compositor,
+ WESTON_TRANSMITTER_IVI_API_NAME,
+ &transmitter_ivi_api_impl,
+ sizeof(transmitter_ivi_api_impl));
+ if (ret < 0) {
+ weston_log("Fatal: Transmitter IVI API registration failed.\n");
+ goto fail;
+ }
+
+ weston_log("Transmitter initialized.\n");
+
+ txr->loop = wl_display_get_event_loop(compositor->wl_display);
+ transmitter_get_server_config(txr);
+ transmitter_connect_to_remote(txr);
+
+ return 0;
+
+fail:
+ wl_list_remove(&txr->compositor_destroy_listener.link);
+ free(txr);
+
+ return -1;
+}