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author | David Robillard <d@drobilla.net> | 2010-10-04 18:21:08 +0000 |
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committer | David Robillard <d@drobilla.net> | 2010-10-04 18:21:08 +0000 |
commit | cef9811dac46a9d54dab0f0d82ce5c3ae032fc7c (patch) | |
tree | 632b911da25fc24b6b3d331d7ceffc22606b8e5b /ext/resize-port.lv2 | |
parent | 61842745ab15454ee66be54a6f3bcc148a75406f (diff) | |
download | lv2-cef9811dac46a9d54dab0f0d82ce5c3ae032fc7c.tar.xz |
Initial import of lv2plug.in universe.
Diffstat (limited to 'ext/resize-port.lv2')
-rw-r--r-- | ext/resize-port.lv2/manifest.ttl | 7 | ||||
-rw-r--r-- | ext/resize-port.lv2/resize-port.h | 46 | ||||
-rw-r--r-- | ext/resize-port.lv2/resize-port.ttl | 85 |
3 files changed, 138 insertions, 0 deletions
diff --git a/ext/resize-port.lv2/manifest.ttl b/ext/resize-port.lv2/manifest.ttl new file mode 100644 index 0000000..0f2179b --- /dev/null +++ b/ext/resize-port.lv2/manifest.ttl @@ -0,0 +1,7 @@ +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . + +<http://lv2plug.in/ns/ext/resize-port> + a lv2:Specification ; + rdfs:seeAlso <resize-port.ttl> . + diff --git a/ext/resize-port.lv2/resize-port.h b/ext/resize-port.lv2/resize-port.h new file mode 100644 index 0000000..4ba533b --- /dev/null +++ b/ext/resize-port.lv2/resize-port.h @@ -0,0 +1,46 @@ +/* LV2 Resize Port Extension + * Copyright (C) 2007-2009 David Robillard <http://drobilla.net> + * + * This header is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This header is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef LV2_RESIZE_PORT_H +#define LV2_RESIZE_PORT_H + +#include <stdint.h> +#include <stdbool.h> + +#define LV2_RESIZE_PORT_URI "http://lv2plug.in/ns/ext/resize-port" + +typedef void* LV2_Resize_Port_Feature_Data; + +typedef struct { + + LV2_Resize_Port_Feature_Data data; + + /** Resize a port buffer to at least @a size bytes. + * + * This function MAY return false, in which case the port buffer was + * not resized and the port is still connected to the same location. + * Plugins MUST gracefully handle this situation. + */ + bool (*resize_port)(LV2_Resize_Port_Feature_Data data, + uint32_t index, + size_t size); + +} LV2_Resize_Port_Feature; + +#endif /* LV2_RESIZE_PORT_H */ + diff --git a/ext/resize-port.lv2/resize-port.ttl b/ext/resize-port.lv2/resize-port.ttl new file mode 100644 index 0000000..d6bbb35 --- /dev/null +++ b/ext/resize-port.lv2/resize-port.ttl @@ -0,0 +1,85 @@ +# LV2 Contexts Extension +# +# Allows for an LV2 plugin to have several independent contexts, each with its +# own run callback and associated ports. +# +# Copyright (C) 2007 David Robillard +# +# 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 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. + +@prefix rsz: <http://lv2plug.in/ns/ext/resize-port#> . +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . +@prefix xsd: <http://www.w3.org/2001/XMLSchema> . +@prefix doap: <http://usefulinc.com/ns/doap#> . +@prefix foaf: <http://xmlns.com/foaf/0.1/> . + +<http://lv2plug.in/ns/ext/resize-port> + a lv2:Specification ; + a lv2:Feature ; + doap:name "LV2 Resize Port Extension" ; + rdfs:comment """ +An extension that allows LV2 plugins to request a resize of an output port. + +Any host which supports this extension must pass an LV2_Feature to +the plugin's instantiate method with URI http://lv2plug.in/ns/ext/resize-port +and a pointer to a +<pre> +struct { + void* host_handle; + void (*resize_port)(void* host_handle, uint32_t index); +} +</pre> +where the plugin may call resize_port with the given host_handle from any +context to demand the resize of an output port buffer. The plugin MUST call +this function from the context of the given port. + +This function MAY return NULL at any time, plugins MUST gracefully handle +this situation. +""" . + +rsz:asLargeAs a rdf:Property ; + rdfs:domain lv2:Port ; + rdfs:range lv2:Symbol ; + rdfs:label "as large as" ; + rdfs:comment """ +Indicates that a port requires at least as much buffer space as the port +with the given symbol on the same plugin instance. This may be used for +any ports, but is generally most useful to indicate an output port must +be at least as large as some input port (because it will copy from it). +If a port is asLargeAs several ports, it is asLargeAs the largest such port +(not the sum of those ports' sizes). + +The host guarantees that whenever an ObjectPort's run method is called, +any output O that is obj:asLargeAs an input I is connected to a buffer large +enough to copy I, or NULL if the port is lv2:connectionOptional. +""" . + +rsz:minimumSize a rdf:Property ; + rdfs:domain lv2:Port ; + rdfs:range lv2:Symbol ; + rdfs:label "minimum size" ; + rdfs:comment """ +Indicates that a port requires a buffer at least this large, in bytes. +Any host that supports the resize-port feature MUST connect any port with a +minimumSize specified to a buffer at least as large as the value given for +this property. Any host, especially those that do NOT support dynamic port +resizing, SHOULD do so or reduced functionality may result. +""" . |