diff options
Diffstat (limited to '')
| -rw-r--r-- | src/modules/module-client-device.c | 232 | ||||
| -rw-r--r-- | src/modules/module-client-device/client-device.h | 44 | ||||
| -rw-r--r-- | src/modules/module-client-device/protocol-native.c | 556 | ||||
| -rw-r--r-- | src/modules/module-client-device/proxy-device.c | 90 | ||||
| -rw-r--r-- | src/modules/module-client-device/resource-device.c | 155 |
5 files changed, 1077 insertions, 0 deletions
diff --git a/src/modules/module-client-device.c b/src/modules/module-client-device.c new file mode 100644 index 0000000..cf3bae3 --- /dev/null +++ b/src/modules/module-client-device.c @@ -0,0 +1,232 @@ +/* PipeWire + * + * Copyright © 2019 Wim Taymans + * + * 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 <string.h> +#include <stdio.h> +#include <errno.h> +#include <dlfcn.h> + +#include "config.h" + +#include <spa/utils/result.h> + +#include <pipewire/impl.h> + +#include "module-client-device/client-device.h" + +/** \page page_module_client_device PipeWire Module: Client Device + */ + +#define NAME "client-device" + +PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME); +#define PW_LOG_TOPIC_DEFAULT mod_topic + +static const struct spa_dict_item module_props[] = { + { PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" }, + { PW_KEY_MODULE_DESCRIPTION, "Allow clients to create and control remote devices" }, + { PW_KEY_MODULE_VERSION, PACKAGE_VERSION }, +}; + +struct pw_proxy *pw_core_spa_device_export(struct pw_core *core, + const char *type, const struct spa_dict *props, void *object, + size_t user_data_size); + +struct pw_protocol *pw_protocol_native_ext_client_device_init(struct pw_context *context); + +struct factory_data { + struct pw_impl_factory *factory; + struct spa_hook factory_listener; + + struct pw_impl_module *module; + struct spa_hook module_listener; + + struct pw_export_type export_spadevice; +}; + +static void *create_object(void *_data, + struct pw_resource *resource, + const char *type, + uint32_t version, + struct pw_properties *properties, + uint32_t new_id) +{ + struct factory_data *data = _data; + struct pw_impl_factory *factory = data->factory; + void *result; + struct pw_resource *device_resource; + struct pw_impl_client *client; + int res; + + if (resource == NULL) { + res = -EINVAL; + goto error_exit; + } + + client = pw_resource_get_client(resource); + device_resource = pw_resource_new(client, new_id, PW_PERM_ALL, type, version, 0); + if (device_resource == NULL) { + res = -errno; + goto error_resource; + } + + if (properties == NULL) + properties = pw_properties_new(NULL, NULL); + if (properties == NULL) { + res = -errno; + goto error_properties; + } + + pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d", + pw_global_get_id(pw_impl_factory_get_global(factory))); + pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d", + pw_global_get_id(pw_impl_client_get_global(client))); + + result = pw_client_device_new(device_resource, properties); + if (result == NULL) { + res = -errno; + goto error_device; + } + return result; + +error_resource: + pw_log_error("can't create resource: %s", spa_strerror(res)); + pw_resource_errorf_id(resource, new_id, res, "can't create resource: %s", spa_strerror(res)); + goto error_exit; +error_properties: + pw_log_error("can't create properties: %s", spa_strerror(res)); + pw_resource_errorf_id(resource, new_id, res, "can't create properties: %s", spa_strerror(res)); + goto error_exit_free; +error_device: + pw_log_error("can't create device: %s", spa_strerror(res)); + pw_resource_errorf_id(resource, new_id, res, "can't create device: %s", spa_strerror(res)); + goto error_exit_free; + +error_exit_free: + pw_resource_remove(device_resource); +error_exit: + errno = -res; + return NULL; +} + +static const struct pw_impl_factory_implementation impl_factory = { + PW_VERSION_IMPL_FACTORY_IMPLEMENTATION, + .create_object = create_object, +}; + +static void factory_destroy(void *data) +{ + struct factory_data *d = data; + spa_hook_remove(&d->factory_listener); + d->factory = NULL; + if (d->module) + pw_impl_module_destroy(d->module); +} + +static const struct pw_impl_factory_events factory_events = { + PW_VERSION_IMPL_FACTORY_EVENTS, + .destroy = factory_destroy, +}; + +static void module_destroy(void *data) +{ + struct factory_data *d = data; + spa_hook_remove(&d->module_listener); + spa_list_remove(&d->export_spadevice.link); + d->module = NULL; + if (d->factory) + pw_impl_factory_destroy(d->factory); +} + +static void module_registered(void *data) +{ + struct factory_data *d = data; + struct pw_impl_module *module = d->module; + struct pw_impl_factory *factory = d->factory; + struct spa_dict_item items[1]; + char id[16]; + int res; + + snprintf(id, sizeof(id), "%d", pw_global_get_id(pw_impl_module_get_global(module))); + items[0] = SPA_DICT_ITEM_INIT(PW_KEY_MODULE_ID, id); + pw_impl_factory_update_properties(factory, &SPA_DICT_INIT(items, 1)); + + if ((res = pw_impl_factory_register(factory, NULL)) < 0) { + pw_log_error("%p: can't register factory: %s", factory, spa_strerror(res)); + } +} + +static const struct pw_impl_module_events module_events = { + PW_VERSION_IMPL_MODULE_EVENTS, + .destroy = module_destroy, + .registered = module_registered, +}; + +SPA_EXPORT +int pipewire__module_init(struct pw_impl_module *module, const char *args) +{ + struct pw_context *context = pw_impl_module_get_context(module); + struct pw_impl_factory *factory; + struct factory_data *data; + int res; + + PW_LOG_TOPIC_INIT(mod_topic); + factory = pw_context_create_factory(context, + "client-device", + SPA_TYPE_INTERFACE_Device, + SPA_VERSION_DEVICE, + pw_properties_new( + PW_KEY_FACTORY_USAGE, CLIENT_DEVICE_USAGE, + NULL), + sizeof(*data)); + if (factory == NULL) + return -errno; + + data = pw_impl_factory_get_user_data(factory); + data->factory = factory; + data->module = module; + + pw_log_debug("module %p: new", module); + + pw_impl_factory_set_implementation(factory, + &impl_factory, + data); + + data->export_spadevice.type = SPA_TYPE_INTERFACE_Device; + data->export_spadevice.func = pw_core_spa_device_export; + if ((res = pw_context_register_export_type(context, &data->export_spadevice)) < 0) + goto error; + + pw_protocol_native_ext_client_device_init(context); + + pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data); + pw_impl_module_add_listener(module, &data->module_listener, &module_events, data); + + pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props)); + + return 0; +error: + pw_impl_factory_destroy(data->factory); + return res; +} diff --git a/src/modules/module-client-device/client-device.h b/src/modules/module-client-device/client-device.h new file mode 100644 index 0000000..ada2b7d --- /dev/null +++ b/src/modules/module-client-device/client-device.h @@ -0,0 +1,44 @@ +/* PipeWire + * + * Copyright © 2019 Wim Taymans + * + * 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. + */ + +#ifndef PIPEWIRE_CLIENT_DEVICE_H +#define PIPEWIRE_CLIENT_DEVICE_H + +#include <pipewire/impl.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define CLIENT_DEVICE_USAGE "["PW_KEY_DEVICE_NAME"=<string>]" + +struct pw_device * +pw_client_device_new(struct pw_resource *resource, + struct pw_properties *properties); + +#ifdef __cplusplus +} +#endif + +#endif /* PIPEWIRE_CLIENT_DEVICE_H */ diff --git a/src/modules/module-client-device/protocol-native.c b/src/modules/module-client-device/protocol-native.c new file mode 100644 index 0000000..2734aac --- /dev/null +++ b/src/modules/module-client-device/protocol-native.c @@ -0,0 +1,556 @@ +/* PipeWire + * + * Copyright © 2019 Wim Taymans + * + * 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 <errno.h> + +#include <spa/pod/builder.h> +#include <spa/pod/parser.h> +#include <spa/utils/result.h> + +#include <pipewire/impl.h> + +#include <pipewire/extensions/protocol-native.h> + +#define MAX_DICT 1024 +#define MAX_PARAM_INFO 128 + +static inline void push_item(struct spa_pod_builder *b, const struct spa_dict_item *item) +{ + const char *str; + spa_pod_builder_string(b, item->key); + str = item->value; + if (spa_strstartswith(str, "pointer:")) + str = ""; + spa_pod_builder_string(b, str); +} + +static inline int parse_item(struct spa_pod_parser *prs, struct spa_dict_item *item) +{ + int res; + if ((res = spa_pod_parser_get(prs, + SPA_POD_String(&item->key), + SPA_POD_String(&item->value), + NULL)) < 0) + return res; + if (spa_strstartswith(item->value, "pointer:")) + item->value = ""; + return 0; +} + +#define parse_dict(prs,d) \ +do { \ + uint32_t i; \ + if (spa_pod_parser_get(prs, \ + SPA_POD_Int(&(d)->n_items), NULL) < 0) \ + return -EINVAL; \ + if ((d)->n_items > 0) { \ + if ((d)->n_items > MAX_DICT) \ + return -ENOSPC; \ + (d)->items = alloca((d)->n_items * sizeof(struct spa_dict_item)); \ + for (i = 0; i < (d)->n_items; i++) { \ + if (parse_item(prs, (struct spa_dict_item *) &(d)->items[i]) < 0) \ + return -EINVAL; \ + } \ + } \ +} while(0) + +#define parse_param_info(prs,n_params,params) \ +do { \ + uint32_t i; \ + if (spa_pod_parser_get(prs, \ + SPA_POD_Int(&(n_params)), NULL) < 0) \ + return -EINVAL; \ + if (n_params > 0) { \ + if (n_params > MAX_PARAM_INFO) \ + return -ENOSPC; \ + params = alloca(n_params * sizeof(struct spa_param_info)); \ + for (i = 0; i < n_params; i++) { \ + if (spa_pod_parser_get(prs, \ + SPA_POD_Id(&(params[i]).id), \ + SPA_POD_Int(&(params[i]).flags), NULL) < 0) \ + return -EINVAL; \ + } \ + } \ +} while(0) + +static int device_marshal_add_listener(void *object, + struct spa_hook *listener, + const struct spa_device_events *events, + void *data) +{ + struct pw_resource *resource = object; + pw_resource_add_object_listener(resource, listener, events, data); + return 0; +} + +static int device_demarshal_add_listener(void *object, + const struct pw_protocol_native_message *msg) +{ + return -ENOTSUP; +} + +static int device_marshal_sync(void *object, int seq) +{ + struct pw_protocol_native_message *msg; + struct pw_resource *resource = object; + struct spa_pod_builder *b; + + b = pw_protocol_native_begin_resource(resource, SPA_DEVICE_METHOD_SYNC, &msg); + + spa_pod_builder_add_struct(b, + SPA_POD_Int(SPA_RESULT_RETURN_ASYNC(msg->seq))); + + return pw_protocol_native_end_resource(resource, b); +} + +static int device_demarshal_sync(void *object, + const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + int seq; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, + SPA_POD_Int(&seq)) < 0) + return -EINVAL; + + pw_proxy_notify(proxy, struct spa_device_methods, sync, 0, seq); + return 0; +} + +static int device_marshal_enum_params(void *object, int seq, + uint32_t id, uint32_t index, uint32_t max, + const struct spa_pod *filter) +{ + struct pw_protocol_native_message *msg; + struct pw_resource *resource = object; + struct spa_pod_builder *b; + + b = pw_protocol_native_begin_resource(resource, SPA_DEVICE_METHOD_ENUM_PARAMS, &msg); + + spa_pod_builder_add_struct(b, + SPA_POD_Int(SPA_RESULT_RETURN_ASYNC(msg->seq)), + SPA_POD_Id(id), + SPA_POD_Int(index), + SPA_POD_Int(max), + SPA_POD_Pod(filter)); + + return pw_protocol_native_end_resource(resource, b); +} + +static int device_demarshal_enum_params(void *object, const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + uint32_t id, index, max; + int seq; + struct spa_pod *filter; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, + SPA_POD_Int(&seq), + SPA_POD_Id(&id), + SPA_POD_Int(&index), + SPA_POD_Int(&max), + SPA_POD_Pod(&filter)) < 0) + return -EINVAL; + + pw_proxy_notify(proxy, struct spa_device_methods, enum_params, 0, + seq, id, index, max, filter); + return 0; +} + +static int device_marshal_set_param(void *object, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct pw_resource *resource = object; + struct spa_pod_builder *b; + + b = pw_protocol_native_begin_resource(resource, SPA_DEVICE_METHOD_SET_PARAM, NULL); + + spa_pod_builder_add_struct(b, + SPA_POD_Id(id), + SPA_POD_Int(flags), + SPA_POD_Pod(param)); + + return pw_protocol_native_end_resource(resource, b); +} + +static int device_demarshal_set_param(void *object, const struct pw_protocol_native_message *msg) +{ + struct pw_proxy *proxy = object; + struct spa_pod_parser prs; + uint32_t id, flags; + struct spa_pod *param; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, + SPA_POD_Id(&id), + SPA_POD_Int(&flags), + SPA_POD_Pod(¶m)) < 0) + return -EINVAL; + + pw_proxy_notify(proxy, struct spa_device_methods, set_param, 0, + id, flags, param); + return 0; +} + +static void device_marshal_info(void *data, + const struct spa_device_info *info) +{ + struct pw_proxy *proxy = data; + struct spa_pod_builder *b; + struct spa_pod_frame f[2]; + uint32_t i, n_items; + + b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_INFO, NULL); + + spa_pod_builder_push_struct(b, &f[0]); + if (info) { + uint64_t change_mask = info->change_mask; + + change_mask &= SPA_DEVICE_CHANGE_MASK_FLAGS | + SPA_DEVICE_CHANGE_MASK_PROPS | + SPA_DEVICE_CHANGE_MASK_PARAMS; + + n_items = info->props ? info->props->n_items : 0; + + spa_pod_builder_push_struct(b, &f[1]); + spa_pod_builder_add(b, + SPA_POD_Long(change_mask), + SPA_POD_Long(info->flags), + SPA_POD_Int(n_items), NULL); + for (i = 0; i < n_items; i++) + push_item(b, &info->props->items[i]); + spa_pod_builder_add(b, + SPA_POD_Int(info->n_params), NULL); + for (i = 0; i < info->n_params; i++) { + spa_pod_builder_add(b, + SPA_POD_Id(info->params[i].id), + SPA_POD_Int(info->params[i].flags), NULL); + } + spa_pod_builder_pop(b, &f[1]); + } else { + spa_pod_builder_add(b, + SPA_POD_Pod(NULL), NULL); + } + spa_pod_builder_pop(b, &f[0]); + + pw_protocol_native_end_proxy(proxy, b); +} + +static int device_demarshal_info(void *data, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = data; + struct spa_pod_parser prs; + struct spa_pod *ipod; + struct spa_device_info info = SPA_DEVICE_INFO_INIT(), *infop; + struct spa_dict props = SPA_DICT_INIT(NULL, 0); + + spa_pod_parser_init(&prs, msg->data, msg->size); + + if (spa_pod_parser_get_struct(&prs, + SPA_POD_PodStruct(&ipod)) < 0) + return -EINVAL; + + if (ipod) { + struct spa_pod_parser p2; + struct spa_pod_frame f2; + infop = &info; + + spa_pod_parser_pod(&p2, ipod); + if (spa_pod_parser_push_struct(&p2, &f2) < 0 || + spa_pod_parser_get(&p2, + SPA_POD_Long(&info.change_mask), + SPA_POD_Long(&info.flags), NULL) < 0) + return -EINVAL; + + info.change_mask &= SPA_DEVICE_CHANGE_MASK_FLAGS | + SPA_DEVICE_CHANGE_MASK_PROPS | + SPA_DEVICE_CHANGE_MASK_PARAMS; + + parse_dict(&p2, &props); + if (props.n_items > 0) + info.props = &props; + + parse_param_info(&p2, info.n_params, info.params); + } + else { + infop = NULL; + } + pw_resource_notify(resource, struct spa_device_events, info, 0, infop); + return 0; +} + +static void device_marshal_result(void *data, + int seq, int res, uint32_t type, const void *result) +{ + struct pw_proxy *proxy = data; + struct spa_pod_builder *b; + struct spa_pod_frame f[2]; + + b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_RESULT, NULL); + spa_pod_builder_push_struct(b, &f[0]); + spa_pod_builder_add(b, + SPA_POD_Int(seq), + SPA_POD_Int(res), + SPA_POD_Id(type), + NULL); + + switch (type) { + case SPA_RESULT_TYPE_DEVICE_PARAMS: + { + const struct spa_result_device_params *r = result; + spa_pod_builder_add(b, + SPA_POD_Id(r->id), + SPA_POD_Int(r->index), + SPA_POD_Int(r->next), + SPA_POD_Pod(r->param), + NULL); + break; + } + default: + break; + } + + spa_pod_builder_pop(b, &f[0]); + + pw_protocol_native_end_proxy(proxy, b); +} + +static int device_demarshal_result(void *data, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = data; + struct spa_pod_parser prs; + struct spa_pod_frame f[1]; + int seq, res; + uint32_t type; + const void *result; + struct spa_result_device_params params; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_push_struct(&prs, &f[0]) < 0 || + spa_pod_parser_get(&prs, + SPA_POD_Int(&seq), + SPA_POD_Int(&res), + SPA_POD_Id(&type), + NULL) < 0) + return -EINVAL; + + switch (type) { + case SPA_RESULT_TYPE_DEVICE_PARAMS: + if (spa_pod_parser_get(&prs, + SPA_POD_Id(¶ms.id), + SPA_POD_Int(¶ms.index), + SPA_POD_Int(¶ms.next), + SPA_POD_PodObject(¶ms.param), + NULL) < 0) + return -EINVAL; + + result = ¶ms; + break; + + default: + result = NULL; + break; + } + + pw_resource_notify(resource, struct spa_device_events, result, 0, seq, res, type, result); + return 0; +} + +static void device_marshal_event(void *data, const struct spa_event *event) +{ + struct pw_proxy *proxy = data; + struct spa_pod_builder *b; + + b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_EVENT, NULL); + + spa_pod_builder_add_struct(b, + SPA_POD_Pod(event)); + + pw_protocol_native_end_proxy(proxy, b); +} + +static int device_demarshal_event(void *data, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = data; + struct spa_pod_parser prs; + struct spa_event *event; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, + SPA_POD_PodObject(&event)) < 0) + return -EINVAL; + + pw_resource_notify(resource, struct spa_device_events, event, 0, event); + return 0; +} + +static void device_marshal_object_info(void *data, uint32_t id, + const struct spa_device_object_info *info) +{ + struct pw_proxy *proxy = data; + struct spa_pod_builder *b; + struct spa_pod_frame f[2]; + uint32_t i, n_items; + + b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_OBJECT_INFO, NULL); + spa_pod_builder_push_struct(b, &f[0]); + spa_pod_builder_add(b, + SPA_POD_Int(id), + NULL); + if (info) { + uint64_t change_mask = info->change_mask; + + change_mask &= SPA_DEVICE_OBJECT_CHANGE_MASK_FLAGS | + SPA_DEVICE_OBJECT_CHANGE_MASK_PROPS; + + n_items = info->props ? info->props->n_items : 0; + + spa_pod_builder_push_struct(b, &f[1]); + spa_pod_builder_add(b, + SPA_POD_String(info->type), + SPA_POD_Long(change_mask), + SPA_POD_Long(info->flags), + SPA_POD_Int(n_items), NULL); + for (i = 0; i < n_items; i++) + push_item(b, &info->props->items[i]); + spa_pod_builder_pop(b, &f[1]); + } else { + spa_pod_builder_add(b, + SPA_POD_Pod(NULL), NULL); + } + spa_pod_builder_pop(b, &f[0]); + + pw_protocol_native_end_proxy(proxy, b); +} + +static int device_demarshal_object_info(void *data, + const struct pw_protocol_native_message *msg) +{ + struct pw_resource *resource = data; + struct spa_pod_parser prs; + struct spa_device_object_info info = SPA_DEVICE_OBJECT_INFO_INIT(), *infop; + struct spa_pod *ipod; + struct spa_dict props = SPA_DICT_INIT(NULL, 0); + uint32_t id; + + spa_pod_parser_init(&prs, msg->data, msg->size); + if (spa_pod_parser_get_struct(&prs, + SPA_POD_Int(&id), + SPA_POD_PodStruct(&ipod)) < 0) + return -EINVAL; + + if (ipod) { + struct spa_pod_parser p2; + struct spa_pod_frame f2; + infop = &info; + + spa_pod_parser_pod(&p2, ipod); + if (spa_pod_parser_push_struct(&p2, &f2) < 0 || + spa_pod_parser_get(&p2, + SPA_POD_String(&info.type), + SPA_POD_Long(&info.change_mask), + SPA_POD_Long(&info.flags), NULL) < 0) + return -EINVAL; + + info.change_mask &= SPA_DEVICE_OBJECT_CHANGE_MASK_FLAGS | + SPA_DEVICE_CHANGE_MASK_PROPS; + + parse_dict(&p2, &props); + if (props.n_items > 0) + info.props = &props; + } else { + infop = NULL; + } + + pw_resource_notify(resource, struct spa_device_events, object_info, 0, id, infop); + return 0; +} + +static const struct spa_device_methods pw_protocol_native_device_method_marshal = { + SPA_VERSION_DEVICE_METHODS, + .add_listener = &device_marshal_add_listener, + .sync = &device_marshal_sync, + .enum_params = &device_marshal_enum_params, + .set_param = &device_marshal_set_param +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_device_method_demarshal[SPA_DEVICE_METHOD_NUM] = +{ + [SPA_DEVICE_METHOD_ADD_LISTENER] = { &device_demarshal_add_listener, 0 }, + [SPA_DEVICE_METHOD_SYNC] = { &device_demarshal_sync, 0 }, + [SPA_DEVICE_METHOD_ENUM_PARAMS] = { &device_demarshal_enum_params, 0 }, + [SPA_DEVICE_METHOD_SET_PARAM] = { &device_demarshal_set_param, 0 }, +}; + +static const struct spa_device_events pw_protocol_native_device_event_marshal = { + SPA_VERSION_DEVICE_EVENTS, + .info = &device_marshal_info, + .result = &device_marshal_result, + .event = &device_marshal_event, + .object_info = &device_marshal_object_info, +}; + +static const struct pw_protocol_native_demarshal +pw_protocol_native_device_event_demarshal[SPA_DEVICE_EVENT_NUM] = +{ + [SPA_DEVICE_EVENT_INFO] = { &device_demarshal_info, 0 }, + [SPA_DEVICE_EVENT_RESULT] = { &device_demarshal_result, 0 }, + [SPA_DEVICE_EVENT_EVENT] = { &device_demarshal_event, 0 }, + [SPA_DEVICE_EVENT_OBJECT_INFO] = { &device_demarshal_object_info, 0 }, +}; + +static const struct pw_protocol_marshal pw_protocol_native_client_device_marshal = { + SPA_TYPE_INTERFACE_Device, + SPA_VERSION_DEVICE, + PW_PROTOCOL_MARSHAL_FLAG_IMPL, + SPA_DEVICE_EVENT_NUM, + SPA_DEVICE_METHOD_NUM, + .client_marshal = &pw_protocol_native_device_event_marshal, + .server_demarshal = pw_protocol_native_device_event_demarshal, + .server_marshal = &pw_protocol_native_device_method_marshal, + .client_demarshal = pw_protocol_native_device_method_demarshal, +}; + +struct pw_protocol *pw_protocol_native_ext_client_device_init(struct pw_context *context) +{ + struct pw_protocol *protocol; + + protocol = pw_context_find_protocol(context, PW_TYPE_INFO_PROTOCOL_Native); + + if (protocol == NULL) + return NULL; + + pw_protocol_add_marshal(protocol, &pw_protocol_native_client_device_marshal); + + return protocol; +} diff --git a/src/modules/module-client-device/proxy-device.c b/src/modules/module-client-device/proxy-device.c new file mode 100644 index 0000000..43bdf8e --- /dev/null +++ b/src/modules/module-client-device/proxy-device.c @@ -0,0 +1,90 @@ +/* PipeWire + * + * Copyright © 2019 Wim Taymans + * + * 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 <stdio.h> +#include <unistd.h> +#include <errno.h> + +#include <spa/pod/parser.h> +#include <spa/monitor/device.h> + +#include "pipewire/pipewire.h" + +struct device_data { + struct spa_device *device; + struct spa_hook device_listener; + struct spa_hook device_methods; + + struct pw_proxy *proxy; + struct spa_hook proxy_listener; +}; + +static void proxy_device_destroy(void *_data) +{ + struct device_data *data = _data; + spa_hook_remove(&data->device_listener); + spa_hook_remove(&data->device_methods); + spa_hook_remove(&data->proxy_listener); +} + +static const struct pw_proxy_events proxy_events = { + PW_VERSION_PROXY_EVENTS, + .destroy = proxy_device_destroy, +}; + +struct pw_proxy *pw_core_spa_device_export(struct pw_core *core, + const char *type, const struct spa_dict *props, void *object, + size_t user_data_size) +{ + struct spa_device *device = object; + struct spa_interface *iface, *diface; + struct pw_proxy *proxy; + struct device_data *data; + + proxy = pw_core_create_object(core, + "client-device", + SPA_TYPE_INTERFACE_Device, + SPA_VERSION_DEVICE, + props, + user_data_size + sizeof(struct device_data)); + if (proxy == NULL) + return NULL; + + data = pw_proxy_get_user_data(proxy); + data = SPA_PTROFF(data, user_data_size, struct device_data); + data->device = device; + data->proxy = proxy; + + iface = (struct spa_interface*)proxy; + diface = (struct spa_interface*)device; + + pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data); + + pw_proxy_add_object_listener(proxy, &data->device_methods, + diface->cb.funcs, diface->cb.data); + spa_device_add_listener(device, &data->device_listener, + iface->cb.funcs, iface->cb.data); + + return proxy; +} diff --git a/src/modules/module-client-device/resource-device.c b/src/modules/module-client-device/resource-device.c new file mode 100644 index 0000000..0f5a40b --- /dev/null +++ b/src/modules/module-client-device/resource-device.c @@ -0,0 +1,155 @@ +/* PipeWire + * + * Copyright © 2018 Wim Taymans + * + * 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 <string.h> +#include <stddef.h> +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <time.h> + +#include <spa/monitor/device.h> +#include <spa/monitor/utils.h> +#include <spa/pod/filter.h> +#include <spa/pod/parser.h> +#include <spa/debug/types.h> + +#include <pipewire/impl.h> + +struct impl { + struct pw_context *context; + struct pw_impl_device *device; + struct spa_hook device_listener; + + struct pw_resource *resource; + struct spa_hook resource_listener; + struct spa_hook object_listener; + + unsigned int registered:1; +}; + +static void device_info(void *data, const struct spa_device_info *info) +{ + struct impl *impl = data; + if (!impl->registered) { + pw_impl_device_set_implementation(impl->device, + (struct spa_device*)impl->resource); + pw_impl_device_register(impl->device, NULL); + impl->registered = true; + } +} + +static const struct spa_device_events object_events = { + SPA_VERSION_DEVICE_EVENTS, + .info = device_info, +}; + +static void device_resource_destroy(void *data) +{ + struct impl *impl = data; + + pw_log_debug("client-device %p: destroy", impl); + + impl->resource = NULL; + spa_hook_remove(&impl->device_listener); + spa_hook_remove(&impl->resource_listener); + spa_hook_remove(&impl->object_listener); + pw_impl_device_destroy(impl->device); +} + +static const struct pw_resource_events resource_events = { + PW_VERSION_RESOURCE_EVENTS, + .destroy = device_resource_destroy, +}; + +static void device_destroy(void *data) +{ + struct impl *impl = data; + + pw_log_debug("client-device %p: destroy", impl); + + impl->device = NULL; + spa_hook_remove(&impl->device_listener); + spa_hook_remove(&impl->resource_listener); + spa_hook_remove(&impl->object_listener); + pw_resource_destroy(impl->resource); +} + +static void device_initialized(void *data) +{ + struct impl *impl = data; + struct pw_impl_device *device = impl->device; + struct pw_global *global = pw_impl_device_get_global(device); + uint32_t id = pw_global_get_id(global); + + pw_log_debug("client-device %p: initialized global:%d", impl, id); + pw_resource_set_bound_id(impl->resource, id); +} + +static const struct pw_impl_device_events device_events = { + PW_VERSION_IMPL_DEVICE_EVENTS, + .destroy = device_destroy, + .initialized = device_initialized, +}; + +struct pw_impl_device *pw_client_device_new(struct pw_resource *resource, + struct pw_properties *properties) +{ + struct impl *impl; + struct pw_impl_device *device; + struct pw_impl_client *client = pw_resource_get_client(resource); + struct pw_context *context = pw_impl_client_get_context(client); + + if (properties == NULL) + properties = pw_properties_new(NULL, NULL); + if (properties == NULL) + return NULL; + + pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d", + pw_impl_client_get_info(client)->id); + + device = pw_context_create_device(context, properties, sizeof(struct impl)); + if (device == NULL) + return NULL; + + impl = pw_impl_device_get_user_data(device); + impl->device = device; + impl->context = context; + impl->resource = resource; + + pw_impl_device_add_listener(impl->device, + &impl->device_listener, + &device_events, impl); + + pw_resource_add_listener(impl->resource, + &impl->resource_listener, + &resource_events, + impl); + pw_resource_add_object_listener(impl->resource, + &impl->object_listener, + &object_events, + impl); + + return device; +} |