From 7a46c07230b8d8108c0e8e80df4522d0ac116538 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:28:17 +0200 Subject: Adding upstream version 0.3.65. Signed-off-by: Daniel Baumann --- spa/plugins/libcamera/libcamera-client.c | 247 +++++++++++++++++++++++++++++++ 1 file changed, 247 insertions(+) create mode 100644 spa/plugins/libcamera/libcamera-client.c (limited to 'spa/plugins/libcamera/libcamera-client.c') diff --git a/spa/plugins/libcamera/libcamera-client.c b/spa/plugins/libcamera/libcamera-client.c new file mode 100644 index 0000000..a31a41f --- /dev/null +++ b/spa/plugins/libcamera/libcamera-client.c @@ -0,0 +1,247 @@ +/* Spa libcamera client + * + * Copyright (C) 2020, Collabora Ltd. + * Author: Raghavendra Rao Sidlagatta + * + * libcamera-client.c + * + * 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 +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libcamera.h" + +struct impl { + struct spa_handle handle; + struct spa_device device; + + struct spa_log *log; + struct spa_loop *main_loop; + + struct spa_hook_list hooks; + + uint64_t info_all; + struct spa_device_info info; + + struct spa_source source; +}; + +static int emit_object_info(struct impl *this, uint32_t id) +{ + struct spa_device_object_info info; + struct spa_dict_item items[20]; + uint32_t n_items = 0; + + info = SPA_DEVICE_OBJECT_INFO_INIT(); + + info.type = SPA_TYPE_INTERFACE_Device; + info.factory_name = SPA_NAME_API_LIBCAMERA_DEVICE; + info.change_mask = (SPA_DEVICE_OBJECT_CHANGE_MASK_FLAGS | + SPA_DEVICE_OBJECT_CHANGE_MASK_PROPS); + info.flags = 0; + + items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_ENUM_API,"libcamera-client"); + items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_API, "libcamera"); + items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Video/Device"); + + info.props = &SPA_DICT_INIT(items, n_items); + spa_device_emit_object_info(&this->hooks, id, &info); + + return 1; +} + +static const struct spa_dict_item device_info_items[] = { + { SPA_KEY_DEVICE_API, "libcamera" }, + { SPA_KEY_DEVICE_NICK, "libcamera-client" }, + { SPA_KEY_API_UDEV_MATCH, "libcamera" }, +}; + + +static void emit_device_info(struct impl *this, bool full) +{ + uint64_t old = full ? this->info.change_mask : 0; + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + this->info.props = &SPA_DICT_INIT_ARRAY(device_info_items); + spa_device_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void impl_hook_removed(struct spa_hook *hook) +{ + return; +} + +static int +impl_device_add_listener(void *object, struct spa_hook *listener, + const struct spa_device_events *events, void *data) +{ + struct impl *this = object; + struct spa_hook_list save; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(events != NULL, -EINVAL); + + spa_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_device_info(this, true); + + emit_object_info(this, 0); + + spa_hook_list_join(&this->hooks, &save); + + listener->removed = impl_hook_removed; + listener->priv = this; + + return 0; +} + +static const struct spa_device_methods impl_device = { + SPA_VERSION_DEVICE_METHODS, + .add_listener = impl_device_add_listener, +}; + +static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + spa_return_val_if_fail(interface != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (spa_streq(type, SPA_TYPE_INTERFACE_Device)) + *interface = &this->device; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + struct impl *this = (struct impl *) handle; + + if(this->dev.camera) { + deleteLibCamera(this->dev.camera); + this->dev.camera = NULL; + } + return 0; +} + +static size_t +impl_get_size(const struct spa_handle_factory *factory, + const struct spa_dict *params) +{ + return sizeof(struct impl); +} + +static int +impl_init(const struct spa_handle_factory *factory, + struct spa_handle *handle, + const struct spa_dict *info, + const struct spa_support *support, + uint32_t n_support) +{ + struct impl *this; + + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(handle != NULL, -EINVAL); + + handle->get_interface = impl_get_interface; + handle->clear = impl_clear; + + this = (struct impl *) handle; + + this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log); + libcamera_log_topic_init(this->log); + + this->main_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Loop); + + if (this->main_loop == NULL) { + spa_log_error(this->log, "a main-loop is needed"); + return -EINVAL; + } + spa_hook_list_init(&this->hooks); + + this->device.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Device, + SPA_VERSION_DEVICE, + &impl_device, this); + + this->info = SPA_DEVICE_INFO_INIT(); + this->info_all = SPA_DEVICE_CHANGE_MASK_FLAGS | + SPA_DEVICE_CHANGE_MASK_PROPS; + this->info.flags = 0; + + if(this->dev.camera == NULL) + this->dev.camera = (LibCamera*)newLibCamera(); + if(this->dev.camera != NULL) + libcamera_set_log(this->dev.camera, this->dev.log); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Device,}, +}; + +static int +impl_enum_interface_info(const struct spa_handle_factory *factory, + const struct spa_interface_info **info, + uint32_t *index) +{ + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(info != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + + if (*index >= SPA_N_ELEMENTS(impl_interfaces)) + return 0; + + *info = &impl_interfaces[(*index)++]; + return 1; +} + +const struct spa_handle_factory spa_libcamera_client_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_API_LIBCAMERA_ENUM_CLIENT, + NULL, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; -- cgit v1.2.3