mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
client-device: add client device
Make it possible to implement a device out-of-process
This commit is contained in:
Wim Taymans
parent
504b2da72b
commit
67a1d317c4
7 changed files with 1292 additions and 0 deletions
520
src/modules/module-client-device/protocol-native.c
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520
src/modules/module-client-device/protocol-native.c
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/* PipeWire
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*
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* Copyright © 2019 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <errno.h>
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#include <spa/pod/parser.h>
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#include <pipewire/pipewire.h>
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#include <extensions/protocol-native.h>
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#if 0
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static void push_dict(struct spa_pod_builder *b, const struct spa_dict *dict)
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{
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uint32_t i, n_items;
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struct spa_pod_frame f;
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n_items = dict ? dict->n_items : 0;
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spa_pod_builder_push_struct(b, &f);
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spa_pod_builder_int(b, n_items);
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for (i = 0; i < n_items; i++) {
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spa_pod_builder_string(b, dict->items[i].key);
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spa_pod_builder_string(b, dict->items[i].value);
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}
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spa_pod_builder_pop(b, &f);
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}
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#endif
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static int device_marshal_add_listener(void *object,
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struct spa_hook *listener,
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const struct spa_device_events *events,
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void *data)
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{
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return -ENOTSUP;
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}
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static int device_demarshal_add_listener(void *object,
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const struct pw_protocol_native_message *msg)
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{
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return -ENOTSUP;
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}
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static int device_marshal_enum_params(void *object, int seq,
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uint32_t id, uint32_t index, uint32_t max,
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const struct spa_pod *filter)
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{
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struct pw_protocol_native_message *msg;
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struct pw_resource *resource = object;
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struct spa_pod_builder *b;
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struct spa_pod_frame f[2];
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b = pw_protocol_native_begin_resource(resource, SPA_DEVICE_METHOD_ENUM_PARAMS, &msg);
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spa_pod_builder_push_struct(b, &f[0]);
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spa_pod_builder_add(b,
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SPA_POD_Int(SPA_RESULT_RETURN_ASYNC(msg->seq)),
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SPA_POD_Id(id),
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SPA_POD_Int(index),
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SPA_POD_Int(max),
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SPA_POD_Pod(filter), NULL);
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spa_pod_builder_pop(b, &f[0]);
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return pw_protocol_native_end_resource(resource, b);
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}
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static int device_demarshal_enum_params(void *object, const struct pw_protocol_native_message *msg)
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{
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struct pw_proxy *proxy = object;
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struct spa_pod_parser prs;
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uint32_t id, index, max;
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int seq;
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struct spa_pod *filter;
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spa_pod_parser_init(&prs, msg->data, msg->size);
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if (spa_pod_parser_get_struct(&prs,
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SPA_POD_Int(&seq),
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SPA_POD_Id(&id),
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SPA_POD_Int(&index),
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SPA_POD_Int(&max),
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SPA_POD_Pod(&filter)) < 0)
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return -EINVAL;
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pw_proxy_notify(proxy, struct spa_device_methods, enum_params, 0,
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seq, id, index, max, filter);
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return 0;
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}
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static int device_marshal_set_param(void *object,
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uint32_t id, uint32_t flags,
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const struct spa_pod *param)
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{
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struct pw_resource *resource = object;
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struct spa_pod_builder *b;
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struct spa_pod_frame f[2];
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b = pw_protocol_native_begin_resource(resource, SPA_DEVICE_METHOD_SET_PARAM, NULL);
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spa_pod_builder_push_struct(b, &f[0]);
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spa_pod_builder_add(b,
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SPA_POD_Id(id),
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SPA_POD_Int(flags),
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SPA_POD_Pod(param), NULL);
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spa_pod_builder_pop(b, &f[0]);
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return pw_protocol_native_end_resource(resource, b);
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}
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static int device_demarshal_set_param(void *object, const struct pw_protocol_native_message *msg)
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{
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struct pw_proxy *proxy = object;
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struct spa_pod_parser prs;
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uint32_t id, flags;
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struct spa_pod *param;
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spa_pod_parser_init(&prs, msg->data, msg->size);
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if (spa_pod_parser_get_struct(&prs,
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SPA_POD_Id(&id),
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SPA_POD_Int(&flags),
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SPA_POD_Pod(¶m)) < 0)
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return -EINVAL;
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pw_proxy_notify(proxy, struct spa_device_methods, set_param, 0,
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id, flags, param);
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return 0;
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}
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static void device_marshal_info(void *object,
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const struct spa_device_info *info)
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{
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struct pw_proxy *proxy = object;
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struct spa_pod_builder *b;
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struct spa_pod_frame f[2];
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uint32_t i, n_items;
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b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_INFO, NULL);
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spa_pod_builder_push_struct(b, &f[0]);
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if (info) {
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uint64_t change_mask = info->change_mask;
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change_mask &= SPA_DEVICE_CHANGE_MASK_FLAGS |
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SPA_DEVICE_CHANGE_MASK_PROPS |
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SPA_DEVICE_CHANGE_MASK_PARAMS;
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n_items = info->props ? info->props->n_items : 0;
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spa_pod_builder_push_struct(b, &f[1]);
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spa_pod_builder_add(b,
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SPA_POD_Long(change_mask),
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SPA_POD_Long(info->flags),
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SPA_POD_Int(n_items), NULL);
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for (i = 0; i < n_items; i++) {
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spa_pod_builder_add(b,
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SPA_POD_String(info->props->items[i].key),
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SPA_POD_String(info->props->items[i].value), NULL);
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}
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spa_pod_builder_add(b,
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SPA_POD_Int(info->n_params), NULL);
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for (i = 0; i < info->n_params; i++) {
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spa_pod_builder_add(b,
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SPA_POD_Id(info->params[i].id),
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SPA_POD_Int(info->params[i].flags), NULL);
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}
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spa_pod_builder_pop(b, &f[1]);
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} else {
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spa_pod_builder_add(b,
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SPA_POD_Pod(NULL), NULL);
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}
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spa_pod_builder_pop(b, &f[0]);
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pw_protocol_native_end_proxy(proxy, b);
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}
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static int device_demarshal_info(void *object,
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const struct pw_protocol_native_message *msg)
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{
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struct pw_resource *resource = object;
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struct spa_pod_parser prs;
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struct spa_pod *ipod;
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struct spa_device_info info = SPA_DEVICE_INFO_INIT(), *infop;
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struct spa_dict props;
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uint32_t i;
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spa_pod_parser_init(&prs, msg->data, msg->size);
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if (spa_pod_parser_get_struct(&prs,
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SPA_POD_PodStruct(&ipod)) < 0)
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return -EINVAL;
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if (ipod) {
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struct spa_pod_parser p2;
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struct spa_pod_frame f2;
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infop = &info;
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spa_pod_parser_pod(&p2, ipod);
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if (spa_pod_parser_push_struct(&p2, &f2) < 0 ||
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spa_pod_parser_get(&p2,
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SPA_POD_Long(&info.change_mask),
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SPA_POD_Long(&info.flags),
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SPA_POD_Int(&props.n_items), NULL) < 0)
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return -EINVAL;
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info.change_mask &= SPA_DEVICE_CHANGE_MASK_FLAGS |
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SPA_DEVICE_CHANGE_MASK_PROPS |
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SPA_DEVICE_CHANGE_MASK_PARAMS;
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if (props.n_items > 0) {
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info.props = &props;
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props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
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for (i = 0; i < props.n_items; i++) {
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if (spa_pod_parser_get(&p2,
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SPA_POD_String(&props.items[i].key),
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SPA_POD_String(&props.items[i].value), NULL) < 0)
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return -EINVAL;
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}
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}
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if (spa_pod_parser_get(&p2,
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SPA_POD_Int(&info.n_params), NULL) < 0)
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return -EINVAL;
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if (info.n_params > 0) {
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info.params = alloca(info.n_params * sizeof(struct spa_param_info));
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for (i = 0; i < info.n_params; i++) {
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if (spa_pod_parser_get(&p2,
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SPA_POD_Id(&info.params[i].id),
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SPA_POD_Int(&info.params[i].flags), NULL) < 0)
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return -EINVAL;
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}
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}
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}
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else {
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infop = NULL;
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}
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pw_resource_do(resource, struct spa_device_events, info, 0, infop);
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return 0;
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}
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static void device_marshal_result(void *object,
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int seq, int res, uint32_t type, const void *result)
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{
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struct pw_proxy *proxy = object;
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struct spa_pod_builder *b;
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struct spa_pod_frame f[2];
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b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_RESULT, NULL);
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spa_pod_builder_push_struct(b, &f[0]);
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spa_pod_builder_add(b,
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SPA_POD_Int(seq),
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SPA_POD_Int(res),
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SPA_POD_Id(type),
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NULL);
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switch (type) {
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case SPA_RESULT_TYPE_DEVICE_PARAMS:
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{
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const struct spa_result_device_params *r = result;
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spa_pod_builder_add(b,
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SPA_POD_Id(r->id),
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SPA_POD_Int(r->index),
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SPA_POD_Int(r->next),
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SPA_POD_Pod(r->param),
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NULL);
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break;
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}
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default:
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break;
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}
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spa_pod_builder_pop(b, &f[0]);
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pw_protocol_native_end_proxy(proxy, b);
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}
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static int device_demarshal_result(void *object,
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const struct pw_protocol_native_message *msg)
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{
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struct pw_resource *resource = object;
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struct spa_pod_parser prs;
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struct spa_pod_frame f[1];
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int seq, res;
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uint32_t type;
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const void *result;
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struct spa_result_device_params params;
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spa_pod_parser_init(&prs, msg->data, msg->size);
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if (spa_pod_parser_push_struct(&prs, &f[0]) < 0 ||
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spa_pod_parser_get(&prs,
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SPA_POD_Int(&seq),
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SPA_POD_Int(&res),
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SPA_POD_Id(&type),
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NULL) < 0)
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return -EINVAL;
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switch (type) {
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case SPA_RESULT_TYPE_DEVICE_PARAMS:
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if (spa_pod_parser_get(&prs,
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SPA_POD_Id(¶ms.id),
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SPA_POD_Int(¶ms.index),
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SPA_POD_Int(¶ms.next),
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SPA_POD_PodObject(¶ms.param),
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NULL) < 0)
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return -EINVAL;
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result = ¶ms;
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break;
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default:
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result = NULL;
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break;
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}
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pw_resource_do(resource, struct spa_device_events, result, 0, seq, res, type, result);
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return 0;
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}
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static void device_marshal_event(void *object, const struct spa_event *event)
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{
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struct pw_proxy *proxy = object;
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struct spa_pod_builder *b;
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struct spa_pod_frame f[2];
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b = pw_protocol_native_begin_proxy(proxy, SPA_DEVICE_EVENT_RESULT, NULL);
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spa_pod_builder_push_struct(b, &f[0]);
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spa_pod_builder_add(b,
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SPA_POD_Pod(event),
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NULL);
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spa_pod_builder_pop(b, &f[0]);
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pw_protocol_native_end_proxy(proxy, b);
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}
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static int device_demarshal_event(void *object,
|
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const struct pw_protocol_native_message *msg)
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{
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struct pw_resource *resource = object;
|
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struct spa_pod_parser prs;
|
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struct spa_event *event;
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|
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spa_pod_parser_init(&prs, msg->data, msg->size);
|
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if (spa_pod_parser_get_struct(&prs,
|
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SPA_POD_PodObject(&event)) < 0)
|
||||
return -EINVAL;
|
||||
|
||||
pw_resource_do(resource, struct spa_device_events, event, 0, event);
|
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return 0;
|
||||
}
|
||||
|
||||
static void device_marshal_object_info(void *object, uint32_t id,
|
||||
const struct spa_device_object_info *info)
|
||||
{
|
||||
struct pw_proxy *proxy = object;
|
||||
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_Id(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++) {
|
||||
spa_pod_builder_add(b,
|
||||
SPA_POD_String(info->props->items[i].key),
|
||||
SPA_POD_String(info->props->items[i].value), 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_object_info(void *object,
|
||||
const struct pw_protocol_native_message *msg)
|
||||
{
|
||||
struct pw_resource *resource = object;
|
||||
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;
|
||||
uint32_t i, 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_Id(&info.type),
|
||||
SPA_POD_Long(&info.change_mask),
|
||||
SPA_POD_Long(&info.flags),
|
||||
SPA_POD_Int(&props.n_items), NULL) < 0)
|
||||
return -EINVAL;
|
||||
|
||||
info.change_mask &= SPA_DEVICE_OBJECT_CHANGE_MASK_FLAGS |
|
||||
SPA_DEVICE_CHANGE_MASK_PROPS;
|
||||
|
||||
if (props.n_items > 0) {
|
||||
info.props = &props;
|
||||
|
||||
props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
|
||||
for (i = 0; i < props.n_items; i++) {
|
||||
if (spa_pod_parser_get(&p2,
|
||||
SPA_POD_String(&props.items[i].key),
|
||||
SPA_POD_String(&props.items[i].value), NULL) < 0)
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
infop = NULL;
|
||||
}
|
||||
|
||||
pw_resource_do(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,
|
||||
.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_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,
|
||||
SPA_DEVICE_EVENT_NUM,
|
||||
SPA_DEVICE_METHOD_NUM,
|
||||
&pw_protocol_native_device_event_marshal,
|
||||
pw_protocol_native_device_event_demarshal,
|
||||
&pw_protocol_native_device_method_marshal,
|
||||
pw_protocol_native_device_method_demarshal,
|
||||
};
|
||||
|
||||
struct pw_protocol *pw_protocol_native_ext_client_device_init(struct pw_core *core)
|
||||
{
|
||||
struct pw_protocol *protocol;
|
||||
|
||||
protocol = pw_core_find_protocol(core, PW_TYPE_INFO_PROTOCOL_Native);
|
||||
|
||||
if (protocol == NULL)
|
||||
return NULL;
|
||||
|
||||
pw_protocol_add_marshal(protocol, &pw_protocol_native_client_device_marshal);
|
||||
|
||||
return protocol;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue