From 332e8b7029b93c6ef1ed8d6a373af5d01ea11045 Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Mon, 30 May 2022 10:34:50 +0200 Subject: [PATCH] vulkan: start of vulkan filters --- spa/include/spa/utils/names.h | 2 + spa/plugins/vulkan/meson.build | 1 + spa/plugins/vulkan/plugin.c | 4 + spa/plugins/vulkan/vulkan-compute-filter.c | 773 +++++++++++++++++++++ 4 files changed, 780 insertions(+) create mode 100644 spa/plugins/vulkan/vulkan-compute-filter.c diff --git a/spa/include/spa/utils/names.h b/spa/include/spa/utils/names.h index 3ece5a861..7d60b07ed 100644 --- a/spa/include/spa/utils/names.h +++ b/spa/include/spa/utils/names.h @@ -144,6 +144,8 @@ extern "C" { /** keys for vulkan factory names */ #define SPA_NAME_API_VULKAN_COMPUTE_SOURCE \ "api.vulkan.compute.source" /**< a vulkan compute source. */ +#define SPA_NAME_API_VULKAN_COMPUTE_FILTER \ + "api.vulkan.compute.filter" /**< a vulkan compute filter. */ /** * \} diff --git a/spa/plugins/vulkan/meson.build b/spa/plugins/vulkan/meson.build index b79bca2cf..0657d219b 100644 --- a/spa/plugins/vulkan/meson.build +++ b/spa/plugins/vulkan/meson.build @@ -1,5 +1,6 @@ spa_vulkan_sources = [ 'plugin.c', + 'vulkan-compute-filter.c', 'vulkan-compute-source.c', 'vulkan-utils.c' ] diff --git a/spa/plugins/vulkan/plugin.c b/spa/plugins/vulkan/plugin.c index dbaca127c..e9f40ba0f 100644 --- a/spa/plugins/vulkan/plugin.c +++ b/spa/plugins/vulkan/plugin.c @@ -26,6 +26,7 @@ #include +extern const struct spa_handle_factory spa_vulkan_compute_filter_factory; extern const struct spa_handle_factory spa_vulkan_compute_source_factory; SPA_EXPORT @@ -38,6 +39,9 @@ int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t case 0: *factory = &spa_vulkan_compute_source_factory; break; + case 1: + *factory = &spa_vulkan_compute_filter_factory; + break; default: return 0; } diff --git a/spa/plugins/vulkan/vulkan-compute-filter.c b/spa/plugins/vulkan/vulkan-compute-filter.c new file mode 100644 index 000000000..4b41ed2aa --- /dev/null +++ b/spa/plugins/vulkan/vulkan-compute-filter.c @@ -0,0 +1,773 @@ +/* Spa + * + * 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 +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "vulkan-utils.h" + +#define NAME "vulkan-compute-filter" + +#define MAX_PORTS 1 + +struct buffer { + uint32_t id; +#define BUFFER_FLAG_OUT (1<<0) + uint32_t flags; + struct spa_buffer *outbuf; + struct spa_meta_header *h; + struct spa_list link; +}; + +struct port { + uint64_t info_all; + struct spa_port_info info; + + enum spa_direction direction; + struct spa_param_info params[5]; + + struct spa_io_buffers *io; + + bool have_format; + struct spa_video_info current_format; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list empty; + struct spa_list ready; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + + struct spa_io_position *position; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[2]; + + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + bool async; + struct spa_source timer_source; + struct itimerspec timerspec; + + bool started; + uint64_t frame_count; + + struct vulkan_state state; + struct port port[2]; +}; + +#define CHECK_PORT(this,d,p) ((p) < MAX_PORTS) + +static int impl_node_enum_params(void *object, int seq, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_IO_Position: + if (size > 0 && size < sizeof(struct spa_io_position)) + return -EINVAL; + this->position = data; + break; + default: + return -ENOENT; + } + return 0; +} +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + default: + return -ENOENT; + } + return 0; +} + +static inline void reuse_buffer(struct impl *this, struct port *port, uint32_t id) +{ + struct buffer *b = &port->buffers[id]; + + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUT)) { + spa_log_trace(this->log, NAME " %p: reuse buffer %d", this, id); + + SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUT); + spa_list_append(&port->empty, &b->link); + } +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + if (this->started) + return 0; + + this->frame_count = 0; + this->started = true; + spa_vulkan_start(&this->state); + break; + + case SPA_NODE_COMMAND_Suspend: + case SPA_NODE_COMMAND_Pause: + if (!this->started) + return 0; + + this->started = false; + spa_vulkan_stop(&this->state); + break; + default: + return -ENOTSUP; + } + return 0; +} + +static const struct spa_dict_item node_info_items[] = { + { SPA_KEY_MEDIA_CLASS, "Video/Filter" }, +}; + +static void emit_node_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(node_info_items); + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + uint64_t old = full ? port->info.change_mask : 0; + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + struct spa_dict_item items[1]; + + items[0] = SPA_DICT_ITEM_INIT(SPA_KEY_FORMAT_DSP, "32 bit float RGBA video"); + port->info.props = &SPA_DICT_INIT(items, 1); + spa_node_emit_port_info(&this->hooks, + port->direction, 0, &port->info); + port->info.change_mask = old; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_events *events, + void *data) +{ + struct impl *this = object; + struct spa_hook_list save; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + emit_port_info(this, &this->port[0], true); + emit_port_info(this, &this->port[1], true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + return 0; +} + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int +impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int port_enum_formats(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + const struct spa_pod *filter, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + switch (index) { + case 0: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp), + SPA_FORMAT_VIDEO_format, SPA_POD_Id(SPA_VIDEO_FORMAT_DSP_F32)); + break; + default: + return 0; + } + return 1; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct port *port; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_pod *param; + struct spa_result_node_params result; + uint32_t count = 0; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port[direction]; + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if ((res = port_enum_formats(this, direction, port_id, + result.index, filter, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_video_dsp_build(&b, id, &port->current_format.info.dsp); + break; + + case SPA_PARAM_Buffers: + { + if (!port->have_format) + return -EIO; + if (this->position == NULL) + return -EIO; + if (result.index > 0) + return 0; + + spa_log_debug(this->log, NAME" %p: %dx%d stride %d", this, + this->position->video.size.width, + this->position->video.size.height, + this->position->video.stride); + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_Int(this->position->video.stride * + this->position->video.size.height), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(this->position->video.stride)); + break; + } + case SPA_PARAM_Meta: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamMeta, id, + SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header), + SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))); + break; + + default: + return 0; + } + break; + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_debug(this->log, NAME " %p: clear buffers", this); + spa_vulkan_use_buffers(&this->state, 0, 0, NULL); + port->n_buffers = 0; + spa_list_init(&port->empty); + spa_list_init(&port->ready); + this->started = false; + } + return 0; +} + +static int port_set_format(struct impl *this, struct port *port, + uint32_t flags, + const struct spa_pod *format) +{ + int res; + + if (format == NULL) { + port->have_format = false; + clear_buffers(this, port); + spa_vulkan_unprepare(&this->state); + } else { + struct spa_video_info info = { 0 }; + + if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return res; + + if (info.media_type != SPA_MEDIA_TYPE_video && + info.media_subtype != SPA_MEDIA_SUBTYPE_dsp) + return -EINVAL; + + if (spa_format_video_dsp_parse(format, &info.info.dsp) < 0) + return -EINVAL; + + if (info.info.dsp.format != SPA_VIDEO_FORMAT_DSP_F32) + return -EINVAL; + + this->state.constants.width = this->position->video.size.width; + this->state.constants.height = this->position->video.size.height; + + port->current_format = info; + port->have_format = true; + spa_vulkan_prepare(&this->state); + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + struct port *port; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(node, direction, port_id), -EINVAL); + port = &this->port[direction]; + + switch (id) { + case SPA_PARAM_Format: + res = port_set_format(this, port, flags, param); + break; + default: + return -ENOENT; + } + return res; +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port[direction]; + + if (!port->have_format) + return -EIO; + + clear_buffers(this, port); + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->flags = 0; + b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + spa_list_append(&port->empty, &b->link); + } + spa_vulkan_use_buffers(&this->state, flags, n_buffers, buffers); + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t id, + void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port[direction]; + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(port_id == 0, -EINVAL); + + port = &this->port[SPA_DIRECTION_OUTPUT]; + spa_return_val_if_fail(buffer_id < port->n_buffers, -EINVAL); + + reuse_buffer(this, port, buffer_id); + + return 0; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *inport, *outport; + struct spa_io_buffers *inio, *outio; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + outport = &this->port[SPA_DIRECTION_OUTPUT]; + outio = outport->io; + spa_return_val_if_fail(outio != NULL, -EIO); + + if (outio->status == SPA_STATUS_HAVE_DATA) + return SPA_STATUS_HAVE_DATA; + + if (outio->buffer_id < outport->n_buffers) { + reuse_buffer(this, outport, outio->buffer_id); + outio->buffer_id = SPA_ID_INVALID; + } + + inport = &this->port[SPA_DIRECTION_INPUT]; + inio = inport->io; + + if (inio->status != SPA_STATUS_HAVE_DATA) + return inio->status; + + outio->buffer_id = inio->buffer_id; + outio->status = SPA_STATUS_HAVE_DATA; + inio->status = SPA_STATUS_NEED_DATA; + + return SPA_STATUS_HAVE_DATA; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +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_Node)) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + 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; + struct port *port; + + 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); + + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PROPS | + SPA_NODE_CHANGE_MASK_PARAMS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_output_ports = 1; + this->info.max_input_ports = 1; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->info.params = this->params; + this->info.n_params = 2; + + port = &this->port[SPA_DIRECTION_OUTPUT]; + port->direction = SPA_DIRECTION_OUTPUT; + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS | + SPA_PORT_CHANGE_MASK_PROPS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF | SPA_PORT_FLAG_CAN_ALLOC_BUFFERS; + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + spa_list_init(&port->empty); + spa_list_init(&port->ready); + + port = &this->port[SPA_DIRECTION_INPUT]; + port->direction = SPA_DIRECTION_INPUT; + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS | + SPA_PORT_CHANGE_MASK_PROPS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF | SPA_PORT_FLAG_CAN_ALLOC_BUFFERS; + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + spa_list_init(&port->empty); + spa_list_init(&port->ready); + + this->state.log = this->log; + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +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); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Wim Taymans " }, + { SPA_KEY_FACTORY_DESCRIPTION, "Filter video frames using a vulkan compute shader" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +const struct spa_handle_factory spa_vulkan_compute_filter_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_API_VULKAN_COMPUTE_FILTER, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +};